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/* vi:set ts=8 sts=4 sw=4: * * VIM - Vi IMproved by Bram Moolenaar * * Do ":help uganda" in Vim to read copying and usage conditions. * Do ":help credits" in Vim to see a list of people who contributed. * See README.txt for an overview of the Vim source code. */ /* * syntax.c: code for syntax highlighting */ #include "vim.h" /* * Structure that stores information about a highlight group. * The ID of a highlight group is also called group ID. It is the index in * the highlight_ga array PLUS ONE. */ struct hl_group { char_u *sg_name; /* highlight group name */ char_u *sg_name_u; /* uppercase of sg_name */ /* for normal terminals */ int sg_term; /* "term=" highlighting attributes */ char_u *sg_start; /* terminal string for start highl */ char_u *sg_stop; /* terminal string for stop highl */ int sg_term_attr; /* Screen attr for term mode */ /* for color terminals */ int sg_cterm; /* "cterm=" highlighting attr */ int sg_cterm_bold; /* bold attr was set for light color */ int sg_cterm_fg; /* terminal fg color number + 1 */ int sg_cterm_bg; /* terminal bg color number + 1 */ int sg_cterm_attr; /* Screen attr for color term mode */ #ifdef FEAT_GUI /* for when using the GUI */ int sg_gui; /* "gui=" highlighting attributes */ guicolor_T sg_gui_fg; /* GUI foreground color handle */ char_u *sg_gui_fg_name;/* GUI foreground color name */ guicolor_T sg_gui_bg; /* GUI background color handle */ char_u *sg_gui_bg_name;/* GUI background color name */ GuiFont sg_font; /* GUI font handle */ #ifdef FEAT_XFONTSET GuiFontset sg_fontset; /* GUI fontset handle */ #endif char_u *sg_font_name; /* GUI font or fontset name */ int sg_gui_attr; /* Screen attr for GUI mode */ #endif int sg_link; /* link to this highlight group ID */ int sg_set; /* combination of SG_* flags */ }; #define SG_TERM 1 /* term has been set */ #define SG_CTERM 2 /* cterm has been set */ #define SG_GUI 4 /* gui has been set */ #define SG_LINK 8 /* link has been set */ static garray_T highlight_ga; /* highlight groups for 'highlight' option */ #define HL_TABLE() ((struct hl_group *)((highlight_ga.ga_data))) #ifdef FEAT_CMDL_COMPL static int include_default = FALSE; /* include "default" for expansion */ static int include_link = FALSE; /* include "link" for expansion */ #endif /* * The "term", "cterm" and "gui" arguments can be any combination of the * following names, separated by commas (but no spaces!). */ static char *(hl_name_table[]) = {"bold", "standout", "underline", "italic", "reverse", "inverse", "NONE"}; static int hl_attr_table[] = {HL_BOLD, HL_STANDOUT, HL_UNDERLINE, HL_ITALIC, HL_INVERSE, HL_INVERSE, 0}; static int get_attr_entry __ARGS((garray_T *table, attrentry_T *aep)); static void syn_unadd_group __ARGS((void)); static void set_hl_attr __ARGS((int idx)); static void highlight_list_one __ARGS((int id)); static int highlight_list_arg __ARGS((int id, int didh, int type, int iarg, char_u *sarg, char *name)); static int syn_add_group __ARGS((char_u *name)); static int syn_list_header __ARGS((int did_header, int outlen, int id)); static int hl_has_settings __ARGS((int idx, int check_link)); static void highlight_clear __ARGS((int idx)); #ifdef FEAT_GUI static void gui_do_one_color __ARGS((int idx, int do_menu, int do_tooltip)); static int set_group_colors __ARGS((char_u *name, guicolor_T *fgp, guicolor_T *bgp, int do_menu, int use_norm, int do_tooltip)); static guicolor_T color_name2handle __ARGS((char_u *name)); static GuiFont font_name2handle __ARGS((char_u *name)); # ifdef FEAT_XFONTSET static GuiFontset fontset_name2handle __ARGS((char_u *name, int fixed_width)); # endif static void hl_do_font __ARGS((int idx, char_u *arg, int do_normal, int do_menu, int do_tooltip)); #endif /* * An attribute number is the index in attr_table plus ATTR_OFF. */ #define ATTR_OFF (HL_ALL + 1) #if defined(FEAT_SYN_HL) || defined(PROTO) #define SYN_NAMELEN 50 /* maximum length of a syntax name */ /* different types of offsets that are possible */ #define SPO_MS_OFF 0 /* match start offset */ #define SPO_ME_OFF 1 /* match end offset */ #define SPO_HS_OFF 2 /* highl. start offset */ #define SPO_HE_OFF 3 /* highl. end offset */ #define SPO_RS_OFF 4 /* region start offset */ #define SPO_RE_OFF 5 /* region end offset */ #define SPO_LC_OFF 6 /* leading context offset */ #define SPO_COUNT 7 static char *(spo_name_tab[SPO_COUNT]) = {"ms=", "me=", "hs=", "he=", "rs=", "re=", "lc="}; /* * The patterns that are being searched for are stored in a syn_pattern. * A match item consists of one pattern. * A start/end item consists of n start patterns and m end patterns. * A start/skip/end item consists of n start patterns, one skip pattern and m * end patterns. * For the latter two, the patterns are always consecutive: start-skip-end. * * A character offset can be given for the matched text (_m_start and _m_end) * and for the actually highlighted text (_h_start and _h_end). */ typedef struct syn_pattern { char sp_type; /* see SPTYPE_ defines below */ char sp_syncing; /* this item used for syncing */ short sp_flags; /* see HL_ defines below */ struct sp_syn sp_syn; /* struct passed to in_id_list() */ short sp_syn_match_id; /* highlight group ID of pattern */ char_u *sp_pattern; /* regexp to match, pattern */ regprog_T *sp_prog; /* regexp to match, program */ int sp_ic; /* ignore-case flag for sp_prog */ short sp_off_flags; /* see below */ int sp_offsets[SPO_COUNT]; /* offsets */ short *sp_cont_list; /* cont. group IDs, if non-zero */ short *sp_next_list; /* next group IDs, if non-zero */ int sp_sync_idx; /* sync item index (syncing only) */ int sp_line_id; /* ID of last line where tried */ int sp_startcol; /* next match in sp_line_id line */ } synpat_T; /* The sp_off_flags are computed like this: * offset from the start of the matched text: (1 << SPO_XX_OFF) * offset from the end of the matched text: (1 << (SPO_XX_OFF + SPO_COUNT)) * When both are present, only one is used. */ #define SPTYPE_MATCH 1 /* match keyword with this group ID */ #define SPTYPE_START 2 /* match a regexp, start of item */ #define SPTYPE_END 3 /* match a regexp, end of item */ #define SPTYPE_SKIP 4 /* match a regexp, skip within item */ #define HL_CONTAINED 0x01 /* not used on toplevel */ #define HL_TRANSP 0x02 /* has no highlighting */ #define HL_ONELINE 0x04 /* match within one line only */ #define HL_HAS_EOL 0x08 /* end pattern that matches with $ */ #define HL_SYNC_HERE 0x10 /* sync point after this item (syncing only) */ #define HL_SYNC_THERE 0x20 /* sync point at current line (syncing only) */ #define HL_MATCH 0x40 /* use match ID instead of item ID */ #define HL_SKIPNL 0x80 /* nextgroup can skip newlines */ #define HL_SKIPWHITE 0x100 /* nextgroup can skip white space */ #define HL_SKIPEMPTY 0x200 /* nextgroup can skip empty lines */ #define HL_KEEPEND 0x400 /* end match always kept */ #define HL_EXCLUDENL 0x800 /* exclude NL from match */ #define HL_DISPLAY 0x1000 /* only used for displaying, not syncing */ #define HL_FOLD 0x2000 /* define fold */ #define HL_EXTEND 0x4000 /* ignore a keepend */ /* These don't fit in a short, thus can't be used for syntax items, only for * si_flags and bs_flags. */ #define HL_MATCHCONT 0x8000 /* match continued from previous line */ #define HL_TRANS_CONT 0x10000L /* transparent item without contains arg */ #define SYN_ITEMS(buf) ((synpat_T *)((buf)->b_syn_patterns.ga_data)) #define NONE_IDX -2 /* value of sp_sync_idx for "NONE" */ /* * Flags for b_syn_sync_flags: */ #define SF_CCOMMENT 0x01 /* sync on a C-style comment */ #define SF_MATCH 0x02 /* sync by matching a pattern */ #define SYN_STATE_P(ssp) ((bufstate_T *)((ssp)->ga_data)) /* * Settings for keyword hash table. It uses a simplistic hash function: add * all characters together, modulo KHASH_SIZE. */ #define KHASH_SIZE 512 #define KHASH_MASK (KHASH_SIZE - 1) #define MAXKEYWLEN 80 /* maximum length of a keyword */ /* * The attributes of the syntax item that has been recognized. */ static int current_attr = 0; /* attr of current syntax word */ #ifdef FEAT_EVAL static int current_id = 0; /* ID of current char for syn_get_id() */ static int current_trans_id = 0; /* idem, transparancy removed */ #endif struct syn_cluster { char_u *scl_name; /* syntax cluster name */ char_u *scl_name_u; /* uppercase of scl_name */ short *scl_list; /* IDs in this syntax cluster */ }; /* * Methods of combining two clusters */ #define CLUSTER_REPLACE 1 /* replace first list with second */ #define CLUSTER_ADD 2 /* add second list to first */ #define CLUSTER_SUBTRACT 3 /* subtract second list from first */ #define SYN_CLSTR(buf) ((struct syn_cluster *)((buf)->b_syn_clusters.ga_data)) /* * Syntax group IDs have different types: * 0 - 9999 normal syntax groups * 10000 - 14999 ALLBUT indicator (current_syn_inc_tag added) * 15000 - 19999 TOP indicator (current_syn_inc_tag added) * 20000 - 24999 CONTAINED indicator (current_syn_inc_tag added) * >= 25000 cluster IDs (subtract SYNID_CLUSTER for the cluster ID) */ #define SYNID_ALLBUT 10000 /* syntax group ID for contains=ALLBUT */ #define SYNID_TOP 15000 /* syntax group ID for contains=TOP */ #define SYNID_CONTAINED 20000 /* syntax group ID for contains=CONTAINED */ #define SYNID_CLUSTER 25000 /* first syntax group ID for clusters */ /* * Annoying Hack(TM): ":syn include" needs this pointer to pass to * expand_filename(). Most of the other syntax commands don't need it, so * instead of passing it to them, we stow it here. */ static char_u **syn_cmdlinep; /* * Another Annoying Hack(TM): To prevent rules from other ":syn include"'d * files from from leaking into ALLBUT lists, we assign a unique ID to the * rules in each ":syn include"'d file. */ static int current_syn_inc_tag = 0; static int running_syn_inc_tag = 0; /* * To reduce the time spent in keepend(), remember at which level in the state * stack the first item with "keepend" is present. When "-1", there is no * "keepend" on the stack. */ static int keepend_level = -1; /* * For the current state we need to remember more than just the idx. * When si_m_endpos.lnum is 0, the items other than si_idx are unknown. * (The end positions have the column number of the next char) */ typedef struct state_item { int si_idx; /* index of syntax pattern */ int si_id; /* highlight group ID for keywords */ int si_trans_id; /* idem, transparancy removed */ int si_m_lnum; /* lnum of the match */ int si_m_startcol; /* starting column of the match */ lpos_T si_m_endpos; /* just after end posn of the match */ lpos_T si_h_startpos; /* start position of the highlighting */ lpos_T si_h_endpos; /* end position of the highlighting */ lpos_T si_eoe_pos; /* end position of end pattern */ int si_end_idx; /* group ID for end pattern or zero */ int si_ends; /* if match ends before si_m_endpos */ int si_attr; /* attributes in this state */ long si_flags; /* HL_HAS_EOL flag in this state, and * HL_SKIP* for si_next_list */ short *si_cont_list; /* list of contained groups */ short *si_next_list; /* nextgroup IDs after this item ends */ reg_extmatch_T *si_extmatch; /* \z(...\) matches from start * pattern */ } stateitem_T; #define KEYWORD_IDX -1 /* value of si_idx for keywords */ #define ID_LIST_ALL (short *)-1 /* valid of si_cont_list for containing all but contained groups */ /* * The next possible match in the current line for any pattern is remembered, * to avoid having to try for a match in each column. * If next_match_idx == -1, not tried (in this line) yet. * If next_match_col == MAXCOL, no match found in this line. * (All end positions have the column of the char after the end) */ static int next_match_col; /* column for start of next match */ static lpos_T next_match_m_endpos; /* position for end of next match */ static lpos_T next_match_h_startpos; /* pos. for highl. start of next match */ static lpos_T next_match_h_endpos; /* pos. for highl. end of next match */ static int next_match_idx; /* index of matched item */ static long next_match_flags; /* flags for next match */ static lpos_T next_match_eos_pos; /* end of start pattn (start region) */ static lpos_T next_match_eoe_pos; /* pos. for end of end pattern */ static int next_match_end_idx; /* ID of group for end pattn or zero */ static reg_extmatch_T *next_match_extmatch = NULL; /* * A state stack is an array of integers or stateitem_T, stored in a * garray_T. A state stack is invalid if it's itemsize entry is zero. */ #define INVALID_STATE(ssp) ((ssp)->ga_itemsize == 0) #define VALID_STATE(ssp) ((ssp)->ga_itemsize != 0) /* * The current state (within the line) of the recognition engine. * When current_state.ga_itemsize is 0 the current state is invalid. */ static win_T *syn_win; /* current window for highlighting */ static buf_T *syn_buf; /* current buffer for highlighting */ static linenr_T current_lnum = 0; /* lnum of current state */ static colnr_T current_col = 0; /* column of current state */ static int current_state_stored = 0; /* TRUE if stored current state * after setting current_finished */ static int current_finished = 0; /* current line has been finished */ static garray_T current_state /* current stack of state_items */ = {0, 0, 0, 0, NULL}; static short *current_next_list = NULL; /* when non-zero, nextgroup list */ static int current_next_flags = 0; /* flags for current_next_list */ static int current_line_id = 0; /* unique number for current line */ #define CUR_STATE(idx) ((stateitem_T *)(current_state.ga_data))[idx] static void syn_sync __ARGS((win_T *wp, linenr_T lnum, synstate_T *last_valid)); static int syn_match_linecont __ARGS((linenr_T lnum)); static void syn_start_line __ARGS((void)); static void syn_update_ends __ARGS((int startofline)); static void syn_stack_alloc __ARGS((void)); static int syn_stack_cleanup __ARGS((void)); static void syn_stack_free_entry __ARGS((buf_T *buf, synstate_T *p)); static synstate_T *syn_stack_find_entry __ARGS((linenr_T lnum)); static synstate_T *store_current_state __ARGS((synstate_T *sp)); static void load_current_state __ARGS((synstate_T *from)); static void invalidate_current_state __ARGS((void)); static int syn_stack_equal __ARGS((synstate_T *sp)); static void validate_current_state __ARGS((void)); static int syn_finish_line __ARGS((int syncing)); static int syn_current_attr __ARGS((int syncing, int displaying)); static int did_match_already __ARGS((int idx)); static stateitem_T *push_next_match __ARGS((stateitem_T *cur_si)); static void check_state_ends __ARGS((void)); static void update_si_attr __ARGS((int idx)); static void check_keepend __ARGS((void)); static void update_si_end __ARGS((stateitem_T *sip, int startcol, int force)); static short *copy_id_list __ARGS((short *list)); static int in_id_list __ARGS((stateitem_T *item, short *cont_list, struct sp_syn *ssp, int contained)); static int push_current_state __ARGS((int idx)); static void pop_current_state __ARGS((void)); static void find_endpos __ARGS((int idx, lpos_T *startpos, lpos_T *m_endpos, lpos_T *hl_endpos, long *flagsp, lpos_T *end_endpos, int *end_idx, reg_extmatch_T *start_ext)); static void clear_syn_state __ARGS((synstate_T *p)); static void clear_current_state __ARGS((void)); static void limit_pos __ARGS((lpos_T *pos, lpos_T *limit)); static void limit_pos_zero __ARGS((lpos_T *pos, lpos_T *limit)); static void syn_add_end_off __ARGS((lpos_T *result, regmmatch_T *regmatch, synpat_T *spp, int idx, int extra)); static void syn_add_start_off __ARGS((lpos_T *result, regmmatch_T *regmatch, synpat_T *spp, int idx, int extra)); static char_u *syn_getcurline __ARGS((void)); static int syn_regexec __ARGS((regmmatch_T *rmp, linenr_T lnum, colnr_T col)); static int check_keyword_id __ARGS((char_u *line, int startcol, int *endcol, long *flags, short **next_list, stateitem_T *cur_si)); static void syn_cmd_case __ARGS((exarg_T *eap, int syncing)); static void syntax_sync_clear __ARGS((void)); static void syn_remove_pattern __ARGS((buf_T *buf, int idx)); static void syn_clear_pattern __ARGS((buf_T *buf, int i)); static void syn_clear_cluster __ARGS((buf_T *buf, int i)); static void syn_cmd_clear __ARGS((exarg_T *eap, int syncing)); static void syn_clear_one __ARGS((int id, int syncing)); static void syn_cmd_on __ARGS((exarg_T *eap, int syncing)); static void syn_cmd_enable __ARGS((exarg_T *eap, int syncing)); static void syn_cmd_reset __ARGS((exarg_T *eap, int syncing)); static void syn_cmd_manual __ARGS((exarg_T *eap, int syncing)); static void syn_cmd_off __ARGS((exarg_T *eap, int syncing)); static void syn_cmd_onoff __ARGS((exarg_T *eap, char *name)); static void syn_cmd_list __ARGS((exarg_T *eap, int syncing)); static void syn_lines_msg __ARGS((void)); static void syn_match_msg __ARGS((void)); static void syn_list_one __ARGS((int id, int syncing, int link_only)); static void syn_list_cluster __ARGS((int id)); static void put_id_list __ARGS((char_u *name, short *list, int attr)); static void put_pattern __ARGS((char *s, int c, synpat_T *spp, int attr)); static int syn_list_keywords __ARGS((int id, keyentry_T **ktabp, int did_header, int attr)); static void syn_clear_keyword __ARGS((int id, keyentry_T **ktabp)); static void free_keywtab __ARGS((keyentry_T **ktabp)); static void add_keyword __ARGS((char_u *name, int id, int flags, short *cont_in_list, short *next_list)); static int syn_khash __ARGS((char_u *p)); static char_u *get_group_name __ARGS((char_u *arg, char_u **name_end)); static char_u *get_syn_options __ARGS((char_u *arg, int *flagsp, int keyword, int *sync_idx, short **cont_list, short **cont_in_list, short **next_list)); static void syn_cmd_include __ARGS((exarg_T *eap, int syncing)); static void syn_cmd_keyword __ARGS((exarg_T *eap, int syncing)); static void syn_cmd_match __ARGS((exarg_T *eap, int syncing)); static void syn_cmd_region __ARGS((exarg_T *eap, int syncing)); #ifdef __BORLANDC__ static int _RTLENTRYF syn_compare_stub __ARGS((const void *v1, const void *v2)); #else static int syn_compare_stub __ARGS((const void *v1, const void *v2)); #endif static void syn_cmd_cluster __ARGS((exarg_T *eap, int syncing)); static int syn_scl_name2id __ARGS((char_u *name)); static int syn_scl_namen2id __ARGS((char_u *linep, int len)); static int syn_check_cluster __ARGS((char_u *pp, int len)); static int syn_add_cluster __ARGS((char_u *name)); static void init_syn_patterns __ARGS((void)); static char_u *get_syn_pattern __ARGS((char_u *arg, synpat_T *ci)); static void syn_cmd_sync __ARGS((exarg_T *eap, int syncing)); static int get_id_list __ARGS((char_u **arg, int keylen, short **list)); static void syn_combine_list __ARGS((short **clstr1, short **clstr2, int list_op)); static void syn_incl_toplevel __ARGS((int id, int *flagsp)); /* * Start the syntax recognition for a line. This function is normally called * from the screen updating, once for each displayed line. * The buffer is remembered in syn_buf, because get_syntax_attr() doesn't get * it. Careful: curbuf and curwin are likely to point to another buffer and * window. */ void syntax_start(wp, lnum) win_T *wp; linenr_T lnum; { synstate_T *p; synstate_T *last_valid = NULL; synstate_T *last_min_valid = NULL; synstate_T *sp, *prev; linenr_T parsed_lnum; linenr_T first_stored; int dist; reg_syn = TRUE; /* let vim_regexec() know we're using syntax */ /* * After switching buffers, invalidate current_state. */ if (syn_buf != wp->w_buffer) { invalidate_current_state(); syn_buf = wp->w_buffer; } syn_win = wp; /* * Allocate syntax stack when needed. */ syn_stack_alloc(); if (syn_buf->b_sst_array == NULL) goto theend; /* out of memory */ syn_buf->b_sst_lasttick = display_tick; /* * If the state of the end of the previous line is useful, store it. */ if (VALID_STATE(¤t_state) && current_lnum < lnum && current_lnum < syn_buf->b_ml.ml_line_count) { (void)syn_finish_line(FALSE); if (!current_state_stored) { ++current_lnum; (void)store_current_state(NULL); } /* * If the current_lnum is now the same as "lnum", keep the current * state (this happens very often!). Otherwise invalidate * current_state and figure it out below. */ if (current_lnum != lnum) invalidate_current_state(); } else invalidate_current_state(); /* * Try to synchronize from a saved state in b_sst_array[]. * Only do this if lnum is not before and not to far beyond a saved state. */ if (INVALID_STATE(¤t_state) && syn_buf->b_sst_array != NULL) { /* Find last valid saved state before start_lnum. */ for (p = syn_buf->b_sst_first; p != NULL; p = p->sst_next) { if (p->sst_lnum > lnum) break; if (p->sst_lnum <= lnum && p->sst_change_lnum == 0) { last_valid = p; if (p->sst_lnum >= lnum - syn_buf->b_syn_sync_minlines) last_min_valid = p; } } if (last_min_valid != NULL) load_current_state(last_min_valid); } /* * If "lnum" is before or far beyond a line with a saved state, need to * re-synchronize. */ if (INVALID_STATE(¤t_state)) { syn_sync(wp, lnum, last_valid); first_stored = current_lnum + syn_buf->b_syn_sync_minlines; } else first_stored = current_lnum; /* * Advance from the sync point or saved state until the current line. * Save some entries for syncing with later on. */ dist = syn_buf->b_ml.ml_line_count / (syn_buf->b_sst_len - Rows) + 1; prev = syn_stack_find_entry(current_lnum); while (current_lnum < lnum) { syn_start_line(); (void)syn_finish_line(FALSE); ++current_lnum; /* If we parsed at least "minlines" lines or started at a valid * state, the current state is considered valid. */ if (current_lnum >= first_stored) { /* Check if the saved state entry is for the current line and is * equal to the current state. If so, then validate all saved * states that depended on a change before the parsed line. */ if (prev == NULL) sp = syn_buf->b_sst_first; else sp = prev->sst_next; if (sp != NULL && sp->sst_lnum == current_lnum && syn_stack_equal(sp)) { parsed_lnum = current_lnum; prev = sp; while (sp != NULL && sp->sst_change_lnum <= parsed_lnum) { if (sp->sst_lnum <= lnum) /* valid state before desired line, use this one */ prev = sp; else if (sp->sst_change_lnum == 0) /* past saved states depending on change, break here. */ break; sp->sst_change_lnum = 0; sp = sp->sst_next; } load_current_state(prev); } /* Store the state at this line when it's the first one, the line * where we start parsing, or some distance from the previously * saved state. But only when parsed at least 'minlines'. */ else if (prev == NULL || current_lnum == lnum || current_lnum >= prev->sst_lnum + dist) prev = store_current_state(prev); } /* This can take a long time: break when CTRL-C pressed. The current * state will be wrong then. */ line_breakcheck(); if (got_int) { current_lnum = lnum; break; } } syn_start_line(); theend: reg_syn = FALSE; } /* * We cannot simply discard growarrays full of state_items or buf_states; we * have to manually release their extmatch pointers first. */ static void clear_syn_state(p) synstate_T *p; { int i; garray_T *gap; if (p->sst_stacksize > SST_FIX_STATES) { gap = &(p->sst_union.sst_ga); for (i = 0; i < gap->ga_len; i++) unref_extmatch(SYN_STATE_P(gap)[i].bs_extmatch); ga_clear(gap); } else { for (i = 0; i < p->sst_stacksize; i++) unref_extmatch(p->sst_union.sst_stack[i].bs_extmatch); } } /* * Cleanup the current_state stack. */ static void clear_current_state() { int i; stateitem_T *sip; sip = (stateitem_T *)(current_state.ga_data); for (i = 0; i < current_state.ga_len; i++) unref_extmatch(sip[i].si_extmatch); ga_clear(¤t_state); } /* * Try to find a synchronisation point for line "lnum". * * This sets current_lnum and the current state. One of three methods is * used: * 1. Search backwards for the end of a C-comment. * 2. Search backwards for given sync patterns. * 3. Simply start on a given number of lines above "lnum". */ static void syn_sync(wp, start_lnum, last_valid) win_T *wp; linenr_T start_lnum; synstate_T *last_valid; { buf_T *curbuf_save; win_T *curwin_save; pos_T cursor_save; int idx; linenr_T lnum; linenr_T end_lnum; linenr_T break_lnum; int had_sync_point; stateitem_T *cur_si; synpat_T *spp; char_u *line; int found_flags = 0; int found_match_idx = 0; linenr_T found_current_lnum = 0; int found_current_col= 0; lpos_T found_m_endpos; /* * Clear any current state that might be hanging around. */ invalidate_current_state(); /* * Start at least "minlines" back. Default starting point for parsing is * there. * Start further back, to avoid that scrolling backwards will result in * resyncing for every line. Now it resyncs only one out of N lines, * where N is minlines * 1.5, or minlines * 2 if minlines is small. * Watch out for overflow when minlines is MAXLNUM. */ if (syn_buf->b_syn_sync_minlines > start_lnum) start_lnum = 1; else { if (syn_buf->b_syn_sync_minlines == 1) lnum = 1; else if (syn_buf->b_syn_sync_minlines < 10) lnum = syn_buf->b_syn_sync_minlines * 2; else lnum = syn_buf->b_syn_sync_minlines * 3 / 2; if (syn_buf->b_syn_sync_maxlines != 0 && lnum > syn_buf->b_syn_sync_maxlines) lnum = syn_buf->b_syn_sync_maxlines; if (lnum >= start_lnum) start_lnum = 1; else start_lnum -= lnum; } current_lnum = start_lnum; /* * 1. Search backwards for the end of a C-style comment. */ if (syn_buf->b_syn_sync_flags & SF_CCOMMENT) { /* Need to make syn_buf the current buffer for a moment, to be able to * use find_start_comment(). */ curwin_save = curwin; curwin = wp; curbuf_save = curbuf; curbuf = syn_buf; /* * Skip lines that end in a backslash. */ for ( ; start_lnum > 1; --start_lnum) { line = ml_get(start_lnum - 1); if (*line == NUL || *(line + STRLEN(line) - 1) != '\\') break; } current_lnum = start_lnum; /* set cursor to start of search */ cursor_save = wp->w_cursor; wp->w_cursor.lnum = start_lnum; wp->w_cursor.col = 0; /* * If the line is inside a comment, need to find the syntax item that * defines the comment. * Restrict the search for the end of a comment to b_syn_sync_maxlines. */ if (find_start_comment((int)syn_buf->b_syn_sync_maxlines) != NULL) { for (idx = syn_buf->b_syn_patterns.ga_len; --idx >= 0; ) if (SYN_ITEMS(syn_buf)[idx].sp_syn.id == syn_buf->b_syn_sync_id && SYN_ITEMS(syn_buf)[idx].sp_type == SPTYPE_START) { validate_current_state(); if (push_current_state(idx) == OK) update_si_attr(current_state.ga_len - 1); break; } } /* restore cursor and buffer */ wp->w_cursor = cursor_save; curwin = curwin_save; curbuf = curbuf_save; } /* * 2. Search backwards for given sync patterns. */ else if (syn_buf->b_syn_sync_flags & SF_MATCH) { if (syn_buf->b_syn_sync_maxlines != 0 && start_lnum > syn_buf->b_syn_sync_maxlines) break_lnum = start_lnum - syn_buf->b_syn_sync_maxlines; else break_lnum = 0; end_lnum = start_lnum; lnum = start_lnum; while (--lnum > break_lnum) { /* This can take a long time: break when CTRL-C pressed. */ line_breakcheck(); if (got_int) { invalidate_current_state(); current_lnum = start_lnum; break; } /* Check if we have run into a valid saved state stack now. */ if (last_valid != NULL && lnum == last_valid->sst_lnum) { load_current_state(last_valid); break; } /* * Check if the previous line has the line-continuation pattern. */ if (lnum > 1 && syn_match_linecont(lnum - 1)) continue; /* * Start with nothing on the state stack */ validate_current_state(); for (current_lnum = lnum; current_lnum < end_lnum; ++current_lnum) { syn_start_line(); for (;;) { had_sync_point = syn_finish_line(TRUE); /* * When a sync point has been found, remember where, and * continue to look for another one, further on in the line. */ if (had_sync_point && current_state.ga_len) { cur_si = &CUR_STATE(current_state.ga_len - 1); if (cur_si->si_m_endpos.lnum > start_lnum) { /* ignore match that goes to after where started */ current_lnum = end_lnum; break; } spp = &(SYN_ITEMS(syn_buf)[cur_si->si_idx]); found_flags = spp->sp_flags; found_match_idx = spp->sp_sync_idx; found_current_lnum = current_lnum; found_current_col = current_col; found_m_endpos = cur_si->si_m_endpos; /* * Continue after the match (be aware of a zero-length * match). */ if (found_m_endpos.lnum > current_lnum) { current_lnum = found_m_endpos.lnum; current_col = found_m_endpos.col; if (current_lnum >= end_lnum) break; } else if (found_m_endpos.col > current_col) current_col = found_m_endpos.col; else ++current_col; /* syn_current_attr() will have skipped the check for * an item that ends here, need to do that now. */ ++current_col; check_state_ends(); --current_col; } else break; } } /* * If a sync point was encountered, break here. */ if (found_flags) { /* * Put the item that was specified by the sync point on the * state stack. If there was no item specified, make the * state stack empty. */ clear_current_state(); if (found_match_idx >= 0 && push_current_state(found_match_idx) == OK) update_si_attr(current_state.ga_len - 1); /* * When using "grouphere", continue from the sync point * match, until the end of the line. Parsing starts at * the next line. * For "groupthere" the parsing starts at start_lnum. */ if (found_flags & HL_SYNC_HERE) { if (current_state.ga_len) { cur_si = &CUR_STATE(current_state.ga_len - 1); cur_si->si_h_startpos.lnum = found_current_lnum; cur_si->si_h_startpos.col = found_current_col; update_si_end(cur_si, (int)current_col, TRUE); check_keepend(); } current_col = found_m_endpos.col; current_lnum = found_m_endpos.lnum; (void)syn_finish_line(FALSE); ++current_lnum; } else current_lnum = start_lnum; break; } end_lnum = lnum; invalidate_current_state(); } /* Ran into start of the file or exceeded maximum number of lines */ if (lnum <= break_lnum) { invalidate_current_state(); current_lnum = break_lnum + 1; } } validate_current_state(); } /* * Return TRUE if the line-continuation pattern matches in line "lnum". */ static int syn_match_linecont(lnum) linenr_T lnum; { regmmatch_T regmatch; if (syn_buf->b_syn_linecont_prog != NULL) { regmatch.rmm_ic = syn_buf->b_syn_linecont_ic; regmatch.regprog = syn_buf->b_syn_linecont_prog; return syn_regexec(®match, lnum, (colnr_T)0); } return FALSE; } /* * Prepare the current state for the start of a line. */ static void syn_start_line() { current_finished = FALSE; current_col = 0; /* * Need to update the end of a start/skip/end that continues from the * previous line and regions that have "keepend". */ if (current_state.ga_len > 0) syn_update_ends(TRUE); next_match_idx = -1; ++current_line_id; } /* * Check for items in the stack that need their end updated. * When "startofline" is TRUE the last item is always updated. * When "startofline" is FALSE the item with "keepend" is forcefully updated. */ static void syn_update_ends(startofline) int startofline; { stateitem_T *cur_si; int i; if (startofline) { /* Check for a match carried over from a previous line with a * contained region. The match ends as soon as the region ends. */ for (i = 0; i < current_state.ga_len; ++i) { cur_si = &CUR_STATE(i); if (cur_si->si_idx >= 0 && (SYN_ITEMS(syn_buf)[cur_si->si_idx]).sp_type == SPTYPE_MATCH && cur_si->si_m_endpos.lnum < current_lnum) { cur_si->si_flags |= HL_MATCHCONT; cur_si->si_m_endpos.lnum = 0; cur_si->si_m_endpos.col = 0; cur_si->si_h_endpos = cur_si->si_m_endpos; cur_si->si_ends = TRUE; } } } /* * Need to update the end of a start/skip/end that continues from the * previous line. And regions that have "keepend", because they may * influence contained items. * Then check for items ending in column 0. */ i = current_state.ga_len - 1; if (keepend_level >= 0) for ( ; i > keepend_level; --i) if (CUR_STATE(i).si_flags & HL_EXTEND) break; for ( ; i < current_state.ga_len; ++i) { cur_si = &CUR_STATE(i); if ((cur_si->si_flags & HL_KEEPEND) || (i == current_state.ga_len - 1 && startofline)) { cur_si->si_h_startpos.col = 0; /* start highl. in col 0 */ cur_si->si_h_startpos.lnum = current_lnum; if (!(cur_si->si_flags & HL_MATCHCONT)) update_si_end(cur_si, (int)current_col, !startofline); } } check_keepend(); check_state_ends(); } /**************************************** * Handling of the state stack cache. */ /* * EXPLANATION OF THE SYNTAX STATE STACK CACHE * * To speed up syntax highlighting, the state stack for the start of some * lines is cached. These entries can be used to start parsing at that point. * * The stack is kept in b_sst_array[] for each buffer. There is a list of * valid entries. b_sst_first points to the first one, then follow sst_next. * The entries are sorted on line number. The first entry is often for line 2 * (line 1 always starts with an empty stack). * There is also a list for free entries. This construction is used to avoid * having to allocate and free memory blocks too often. * * When making changes to the buffer, this is logged in b_mod_*. When calling * update_screen() to update the display, it will call * syn_stack_apply_changes() for each displayed buffer to adjust the cached * entries. The entries which are inside the changed area are removed, * because they must be recomputed. Entries below the changed have their line * number adjusted for deleted/inserted lines, and have their sst_change_lnum * set to indicate that a check must be made if the changed lines would change * the cached entry. * * When later displaying lines, an entry is stored for each line. Displayed * lines are likely to be displayed again, in which case the state at the * start of the line is needed. * For not displayed lines, an entry is stored for every so many lines. These * entries will be used e.g., when scrolling backwards. The distance between * entries depends on the number of lines in the buffer. For small buffers * the distance is fixed at SST_DIST, for large buffers there is a fixed * number of entries SST_MAX_ENTRIES, and the distance is computed. */ /* * Free b_sst_array[] for buffer "buf". * Used when syntax items changed to force resyncing everywhere. */ void syn_stack_free_all(buf) buf_T *buf; { synstate_T *p; win_T *wp; if (buf->b_sst_array != NULL) { for (p = buf->b_sst_first; p != NULL; p = p->sst_next) clear_syn_state(p); vim_free(buf->b_sst_array); buf->b_sst_array = NULL; buf->b_sst_len = 0; } #ifdef FEAT_FOLDING /* When using "syntax" fold method, must update all folds. */ FOR_ALL_WINDOWS(wp) { if (wp->w_buffer == buf && foldmethodIsSyntax(wp)) foldUpdateAll(wp); } #endif } /* * Allocate the syntax state stack for syn_buf when needed. * If the number of entries in b_sst_array[] is much too big or a bit too * small, reallocate it. * Also used to allocate b_sst_array[] for the first time. */ static void syn_stack_alloc() { long len; synstate_T *to, *from; synstate_T *sstp; len = syn_buf->b_ml.ml_line_count / SST_DIST + Rows * 2; if (len < SST_MIN_ENTRIES) len = SST_MIN_ENTRIES; else if (len > SST_MAX_ENTRIES) len = SST_MAX_ENTRIES; if (syn_buf->b_sst_len > len * 2 || syn_buf->b_sst_len < len) { /* Allocate 50% too much, to avoid reallocating too often. */ len = syn_buf->b_ml.ml_line_count; len = (len + len / 2) / SST_DIST + Rows * 2; if (len < SST_MIN_ENTRIES) len = SST_MIN_ENTRIES; else if (len > SST_MAX_ENTRIES) len = SST_MAX_ENTRIES; if (syn_buf->b_sst_array != NULL) { /* When shrinking the array, cleanup the existing stack. * Make sure that all valid entries fit in the new array. */ while (syn_buf->b_sst_len - syn_buf->b_sst_freecount + 2> len && syn_stack_cleanup()) ; if (len < syn_buf->b_sst_len - syn_buf->b_sst_freecount + 2) len = syn_buf->b_sst_len - syn_buf->b_sst_freecount + 2; } sstp = (synstate_T *)alloc_clear((unsigned)(len * sizeof(synstate_T))); if (sstp == NULL) /* out of memory! */ return; to = sstp - 1; if (syn_buf->b_sst_array != NULL) { /* Move the states from the old array to the new one. */ for (from = syn_buf->b_sst_first; from != NULL; from = from->sst_next) { ++to; *to = *from; to->sst_next = to + 1; } } if (to != sstp - 1) { to->sst_next = NULL; syn_buf->b_sst_first = sstp; syn_buf->b_sst_freecount = len - (int)(to - sstp) - 1; } else { syn_buf->b_sst_first = NULL; syn_buf->b_sst_freecount = len; } /* Create the list of free entries. */ syn_buf->b_sst_firstfree = to + 1; while (++to < sstp + len) to->sst_next = to + 1; (sstp + len - 1)->sst_next = NULL; vim_free(syn_buf->b_sst_array); syn_buf->b_sst_array = sstp; syn_buf->b_sst_len = len; } } /* * Check for changes in a buffer to affect stored syntax states. Uses the * b_mod_* fields. * Called from update_screen(), before screen is being updated, once for each * displayed buffer. */ void syn_stack_apply_changes(buf) buf_T *buf; { synstate_T *p, *prev, *np; linenr_T n; if (buf->b_sst_array == NULL) /* nothing to do */ return; prev = NULL; for (p = buf->b_sst_first; p != NULL; ) { if (p->sst_lnum + syn_buf->b_syn_sync_linebreaks > buf->b_mod_top) { n = p->sst_lnum + buf->b_mod_xlines; if (n <= buf->b_mod_bot) { /* this state is inside the changed area, remove it */ np = p->sst_next; if (prev == NULL) buf->b_sst_first = np; else prev->sst_next = np; syn_stack_free_entry(buf, p); p = np; continue; } /* This state is below the changed area. Remember the line * that needs to be parsed before this entry can be made valid * again. */ if (p->sst_change_lnum != 0 && p->sst_change_lnum > buf->b_mod_top) { if (p->sst_change_lnum + buf->b_mod_xlines > buf->b_mod_top) p->sst_change_lnum += buf->b_mod_xlines; else p->sst_change_lnum = buf->b_mod_top; } if (p->sst_change_lnum == 0 || p->sst_change_lnum < buf->b_mod_bot) p->sst_change_lnum = buf->b_mod_bot; p->sst_lnum = n; } prev = p; p = p->sst_next; } } /* * Reduce the number of entries in the state stack for syn_buf. * Returns TRUE if at least one entry was freed. */ static int syn_stack_cleanup() { synstate_T *p, *prev; disptick_T tick; int above; int dist; int retval = FALSE; if (syn_buf->b_sst_array == NULL || syn_buf->b_sst_first == NULL) return retval; /* Compute normal distance between non-displayed entries. */ dist = syn_buf->b_ml.ml_line_count / (syn_buf->b_sst_len - Rows) + 1; /* * Go throught the list to find the "tick" for the oldest entry that can * be removed. Set "above" when the "tick" for the oldest entry is above * "b_sst_lasttick" (the display tick wraps around). */ tick = syn_buf->b_sst_lasttick; above = FALSE; prev = syn_buf->b_sst_first; for (p = prev->sst_next; p != NULL; prev = p, p = p->sst_next) { if (prev->sst_lnum + dist > p->sst_lnum) { if (p->sst_tick > syn_buf->b_sst_lasttick) { if (!above || p->sst_tick < tick) tick = p->sst_tick; above = TRUE; } else if (!above && p->sst_tick < tick) tick = p->sst_tick; } } /* * Go through the list to make the entries for the oldest tick at an * interval of several lines. */ prev = syn_buf->b_sst_first; for (p = prev->sst_next; p != NULL; prev = p, p = p->sst_next) { if (p->sst_tick == tick && prev->sst_lnum + dist > p->sst_lnum) { /* Move this entry from used list to free list */ prev->sst_next = p->sst_next; syn_stack_free_entry(syn_buf, p); p = prev; retval = TRUE; } } return retval; } /* * Free the allocated memory for a syn_state item. * Move the entry into the free list. */ static void syn_stack_free_entry(buf, p) buf_T *buf; synstate_T *p; { clear_syn_state(p); p->sst_next = buf->b_sst_firstfree; buf->b_sst_firstfree = p; ++buf->b_sst_freecount; } /* * Find an entry in the list of state stacks at or before "lnum". * Returns NULL when there is no entry or the first entry is after "lnum". */ static synstate_T * syn_stack_find_entry(lnum) linenr_T lnum; { synstate_T *p, *prev; prev = NULL; for (p = syn_buf->b_sst_first; p != NULL; prev = p, p = p->sst_next) { if (p->sst_lnum == lnum) return p; if (p->sst_lnum > lnum) break; } return prev; } /* * Try saving the current state in b_sst_array[]. * The current state must be valid for the start of the current_lnum line! */ static synstate_T * store_current_state(sp) synstate_T *sp; /* at or before where state is to be saved or NULL */ { int i; synstate_T *p; bufstate_T *bp; stateitem_T *cur_si; if (sp == NULL) sp = syn_stack_find_entry(current_lnum); /* * If the current state contains a start or end pattern that continues * from the previous line, we can't use it. Don't store it then. */ for (i = current_state.ga_len - 1; i >= 0; --i) { cur_si = &CUR_STATE(i); if (cur_si->si_h_startpos.lnum >= current_lnum || cur_si->si_m_endpos.lnum >= current_lnum || cur_si->si_h_endpos.lnum >= current_lnum || (cur_si->si_end_idx && cur_si->si_eoe_pos.lnum >= current_lnum)) break; } if (i >= 0) { if (sp != NULL) { /* find the entry just before this one */ for (p = syn_buf->b_sst_first; p != NULL; p = p->sst_next) if (p->sst_next == sp) break; if (p != NULL) p->sst_next = sp->sst_next; else syn_buf->b_sst_first = sp->sst_next; syn_stack_free_entry(syn_buf, sp); sp = NULL; } } else if (sp == NULL || sp->sst_lnum != current_lnum) { /* * Add a new entry */ /* If no free items, cleanup the array first. */ if (syn_buf->b_sst_freecount == 0) (void)syn_stack_cleanup(); /* Still no free items? Must be a strange problem... */ if (syn_buf->b_sst_freecount == 0) sp = NULL; else { /* Take the first item from the free list and put it in the used * list, after *sp */ p = syn_buf->b_sst_firstfree; syn_buf->b_sst_firstfree = p->sst_next; --syn_buf->b_sst_freecount; if (sp == NULL) { /* Insert in front of the list */ p->sst_next = syn_buf->b_sst_first; syn_buf->b_sst_first = p; } else { /* insert in list after *sp */ p->sst_next = sp->sst_next; sp->sst_next = p; } sp = p; sp->sst_stacksize = 0; sp->sst_lnum = current_lnum; } } if (sp != NULL) { /* When overwriting an existing state stack, clear it first */ clear_syn_state(sp); sp->sst_stacksize = current_state.ga_len; if (current_state.ga_len > SST_FIX_STATES) { /* Need to clear it, might be something remaining from when the * length was less than SST_FIX_STATES. */ ga_init2(&sp->sst_union.sst_ga, (int)sizeof(bufstate_T), 1); if (ga_grow(&sp->sst_union.sst_ga, current_state.ga_len) == FAIL) sp->sst_stacksize = 0; else { sp->sst_union.sst_ga.ga_len = current_state.ga_len; sp->sst_union.sst_ga.ga_room -= current_state.ga_len; } bp = SYN_STATE_P(&(sp->sst_union.sst_ga)); } else bp = sp->sst_union.sst_stack; for (i = 0; i < sp->sst_stacksize; ++i) { bp[i].bs_idx = CUR_STATE(i).si_idx; bp[i].bs_flags = CUR_STATE(i).si_flags; bp[i].bs_extmatch = ref_extmatch(CUR_STATE(i).si_extmatch); } sp->sst_next_flags = current_next_flags; sp->sst_next_list = current_next_list; sp->sst_tick = display_tick; sp->sst_change_lnum = 0; } current_state_stored = TRUE; return sp; } /* * Copy a state stack from "from" in b_sst_array[] to current_state; */ static void load_current_state(from) synstate_T *from; { int i; bufstate_T *bp; clear_current_state(); validate_current_state(); keepend_level = -1; if (from->sst_stacksize && ga_grow(¤t_state, from->sst_stacksize) != FAIL) { if (from->sst_stacksize > SST_FIX_STATES) bp = SYN_STATE_P(&(from->sst_union.sst_ga)); else bp = from->sst_union.sst_stack; for (i = 0; i < from->sst_stacksize; ++i) { CUR_STATE(i).si_idx = bp[i].bs_idx; CUR_STATE(i).si_flags = bp[i].bs_flags; CUR_STATE(i).si_extmatch = ref_extmatch(bp[i].bs_extmatch); if (keepend_level < 0 && (CUR_STATE(i).si_flags & HL_KEEPEND)) keepend_level = i; CUR_STATE(i).si_ends = FALSE; CUR_STATE(i).si_m_lnum = 0; if (CUR_STATE(i).si_idx >= 0) CUR_STATE(i).si_next_list = (SYN_ITEMS(syn_buf)[CUR_STATE(i).si_idx]).sp_next_list; else CUR_STATE(i).si_next_list = NULL; update_si_attr(i); } current_state.ga_len = from->sst_stacksize; current_state.ga_room -= current_state.ga_len; } current_next_list = from->sst_next_list; current_next_flags = from->sst_next_flags; current_lnum = from->sst_lnum; } /* * Compare saved state stack "*sp" with the current state. * Return TRUE when they are equal. */ static int syn_stack_equal(sp) synstate_T *sp; { int i, j; bufstate_T *bp; reg_extmatch_T *six, *bsx; /* First a quick check if the stacks have the same size end nextlist. */ if (sp->sst_stacksize == current_state.ga_len && sp->sst_next_list == current_next_list) { /* Need to compare all states on both stacks. */ if (sp->sst_stacksize > SST_FIX_STATES) bp = SYN_STATE_P(&(sp->sst_union.sst_ga)); else bp = sp->sst_union.sst_stack; for (i = current_state.ga_len; --i >= 0; ) { /* If the item has another index the state is different. */ if (bp[i].bs_idx != CUR_STATE(i).si_idx) break; if (bp[i].bs_extmatch != CUR_STATE(i).si_extmatch) { /* When the extmatch pointers are different, the strings in * them can still be the same. Check if the extmatch * references are equal. */ bsx = bp[i].bs_extmatch; six = CUR_STATE(i).si_extmatch; /* If one of the extmatch pointers is NULL the states are * different. */ if (bsx == NULL || six == NULL) break; for (j = 0; j < NSUBEXP; ++j) { /* Check each referenced match string. They must all be * equal. */ if (bsx->matches[j] != six->matches[j]) { /* If the pointer is different it can still be the * same text. Compare the strings, ignore case when * the start item has the sp_ic flag set. */ if (bsx->matches[j] == NULL || six->matches[j] == NULL) break; if ((SYN_ITEMS(syn_buf)[CUR_STATE(i).si_idx]).sp_ic ? MB_STRICMP(bsx->matches[j], six->matches[j]) != 0 : STRCMP(bsx->matches[j], six->matches[j]) != 0) break; } } if (j != NSUBEXP) break; } } if (i < 0) return TRUE; } return FALSE; } /* * We stop parsing syntax above line "lnum". If the stored state at or below * this line depended on a change before it, it now depends on the line below * the last parsed line. * The window looks like this: * line which changed * displayed line * displayed line * lnum -> line below window */ void syntax_end_parsing(lnum) linenr_T lnum; { synstate_T *sp; sp = syn_stack_find_entry(lnum); if (sp != NULL && sp->sst_lnum < lnum) sp = sp->sst_next; if (sp != NULL && sp->sst_change_lnum != 0) sp->sst_change_lnum = lnum; } /* * End of handling of the state stack. ****************************************/ static void invalidate_current_state() { clear_current_state(); current_state.ga_itemsize = 0; /* mark current_state invalid */ current_next_list = NULL; keepend_level = -1; } static void validate_current_state() { current_state.ga_itemsize = sizeof(stateitem_T); current_state.ga_growsize = 3; } /* * Return TRUE if the syntax at start of lnum changed since last time. * This will only be called just after get_syntax_attr() for the previous * line, to check if the next line needs to be redrawn too. */ int syntax_check_changed(lnum) linenr_T lnum; { int retval = TRUE; synstate_T *sp; reg_syn = TRUE; /* let vim_regexec() know we're using syntax */ /* * Check the state stack when: * - lnum is just below the previously syntaxed line. * - lnum is not before the lines with saved states. * - lnum is not past the lines with saved states. * - lnum is at or before the last changed line. */ if (VALID_STATE(¤t_state) && lnum == current_lnum + 1) { sp = syn_stack_find_entry(lnum); if (sp != NULL && sp->sst_lnum == lnum) { /* * finish the previous line (needed when not all of the line was * drawn) */ (void)syn_finish_line(FALSE); /* * Compare the current state with the previously saved state of * the line. */ if (syn_stack_equal(sp)) retval = FALSE; /* * Store the current state in b_sst_array[] for later use. */ ++current_lnum; (void)store_current_state(NULL); } } reg_syn = FALSE; return retval; } /* * Finish the current line. * This doesn't return any attributes, it only gets the state at the end of * the line. It can start anywhere in the line, as long as the current state * is valid. */ static int syn_finish_line(syncing) int syncing; /* called for syncing */ { stateitem_T *cur_si; if (!current_finished) { while (!current_finished) { (void)syn_current_attr(syncing, FALSE); /* * When syncing, and found some item, need to check the item. */ if (syncing && current_state.ga_len) { /* * Check for match with sync item. */ cur_si = &CUR_STATE(current_state.ga_len - 1); if (cur_si->si_idx >= 0 && (SYN_ITEMS(syn_buf)[cur_si->si_idx].sp_flags & (HL_SYNC_HERE|HL_SYNC_THERE))) return TRUE; /* syn_current_attr() will have skipped the check for an item * that ends here, need to do that now. */ ++current_col; check_state_ends(); --current_col; } ++current_col; } } return FALSE; } /* * Return highlight attributes for next character. * Must first call syntax_start() once for the line. * "col" is normally 0 for the first use in a line, and increments by one each * time. It's allowed to skip characters and to stop before the end of the * line. But only a "col" after a previously used column is allowed. */ int get_syntax_attr(col) colnr_T col; { int attr = 0; /* check for out of memory situation */ if (syn_buf->b_sst_array == NULL) return 0; reg_syn = TRUE; /* let vim_regexec() know we're using syntax */ /* Make sure current_state is valid */ if (INVALID_STATE(¤t_state)) validate_current_state(); /* * Skip from the current column to "col", get the attributes for "col". */ while (current_col <= col) { attr = syn_current_attr(FALSE, TRUE); ++current_col; } reg_syn = FALSE; return attr; } /* * Get syntax attributes for current_lnum, current_col. */ static int syn_current_attr(syncing, displaying) int syncing; /* When 1: called for syncing */ int displaying; /* result will be displayed */ { int syn_id; lpos_T endpos; /* was: char_u *endp; */ lpos_T hl_startpos; /* was: int hl_startcol; */ lpos_T hl_endpos; lpos_T eos_pos; /* end-of-start match (start region) */ lpos_T eoe_pos; /* end-of-end pattern */ int end_idx; /* group ID for end pattern */ int idx; synpat_T *spp; stateitem_T *cur_si, *sip; int startcol; int endcol; long flags; short *next_list; int found_match; /* found usable match */ static int try_next_column = FALSE; /* must try in next col */ int do_keywords; regmmatch_T regmatch; lpos_T pos; int lc_col; reg_extmatch_T *cur_extmatch = NULL; char_u *line; /* current line. NOTE: becomes invalid after looking for a pattern match! */ int keep_next_list; int zero_width_next_list = FALSE; /* * No character, no attributes! Past end of line? * Do try matching with an empty line (could be the start of a region). */ line = syn_getcurline(); if (line[current_col] == NUL && current_col != 0) { /* * If we found a match after the last column, use it. */ if (next_match_idx >= 0 && next_match_col >= (int)current_col && next_match_col != MAXCOL) (void)push_next_match(NULL); current_finished = TRUE; current_state_stored = FALSE; return 0; } /* if the current or next character is NUL, we will finish the line now */ if (line[current_col] == NUL || line[current_col + 1] == NUL) { current_finished = TRUE; current_state_stored = FALSE; } /* * When in the previous column there was a match but it could not be used * (empty match or already matched in this column) need to try again in * the next column. */ if (try_next_column) { next_match_idx = -1; try_next_column = FALSE; } /* Only check for keywords when not syncing and there are some. */ do_keywords = !syncing && (syn_buf->b_keywtab != NULL || syn_buf->b_keywtab_ic != NULL); /* * Repeat matching keywords and patterns, to find contained items at the * same column. This stops when there are no extra matches at the current * column. */ do { found_match = FALSE; keep_next_list = FALSE; syn_id = 0; /* * 1. Check for a current state. * Only when there is no current state, or if the current state may * contain other things, we need to check for keywords and patterns. * Always need to check for contained items if some item has the * "containedin" argument (takes extra time!). */ if (current_state.ga_len) cur_si = &CUR_STATE(current_state.ga_len - 1); else cur_si = NULL; if (curbuf->b_syn_containedin || cur_si == NULL || cur_si->si_cont_list != NULL) { /* * 2. Check for keywords, if on a keyword char after a non-keyword * char. Don't do this when syncing. */ if (do_keywords) { line = syn_getcurline(); if (vim_iswordc_buf(line + current_col, syn_buf) && (current_col == 0 || !vim_iswordc_buf(line + current_col - 1 #ifdef FEAT_MBYTE - (has_mbyte ? (*mb_head_off)(line, line + current_col - 1) : 0) #endif , syn_buf))) { syn_id = check_keyword_id(line, (int)current_col, &endcol, &flags, &next_list, cur_si); if (syn_id) { if (push_current_state(KEYWORD_IDX) == OK) { cur_si = &CUR_STATE(current_state.ga_len - 1); cur_si->si_m_startcol = current_col; cur_si->si_h_startpos.lnum = current_lnum; cur_si->si_h_startpos.col = 0; /* starts right away */ cur_si->si_m_endpos.lnum = current_lnum; cur_si->si_m_endpos.col = endcol; cur_si->si_h_endpos.lnum = current_lnum; cur_si->si_h_endpos.col = endcol; cur_si->si_ends = TRUE; cur_si->si_end_idx = 0; cur_si->si_flags = flags; cur_si->si_id = syn_id; cur_si->si_trans_id = syn_id; if (flags & HL_TRANSP) { if (current_state.ga_len < 2) { cur_si->si_attr = 0; cur_si->si_trans_id = 0; } else { cur_si->si_attr = CUR_STATE( current_state.ga_len - 2).si_attr; cur_si->si_trans_id = CUR_STATE( current_state.ga_len - 2).si_trans_id; } } else cur_si->si_attr = syn_id2attr(syn_id); cur_si->si_cont_list = NULL; cur_si->si_next_list = next_list; check_keepend(); } else vim_free(next_list); } } } /* * 3. Check for patterns (only if not found a keyword). */ if (syn_id == 0 && syn_buf->b_syn_patterns.ga_len) { /* * If we didn't check for a match yet, or we are past it, check * for any match with a pattern. */ if (next_match_idx < 0 || next_match_col < (int)current_col) { /* * Check all relevant patterns for a match at this * position. This is complicated, because matching with a * pattern takes quite a bit of time, thus we want to * avoid doing it when it's not needed. */ next_match_idx = 0; /* no match in this line yet */ next_match_col = MAXCOL; for (idx = syn_buf->b_syn_patterns.ga_len; --idx >= 0; ) { spp = &(SYN_ITEMS(syn_buf)[idx]); if ( spp->sp_syncing == syncing && (displaying || !(spp->sp_flags & HL_DISPLAY)) && (spp->sp_type == SPTYPE_MATCH || spp->sp_type == SPTYPE_START) && (current_next_list != NULL ? in_id_list(NULL, current_next_list, &spp->sp_syn, 0) : (cur_si == NULL ? !(spp->sp_flags & HL_CONTAINED) : in_id_list(cur_si, cur_si->si_cont_list, &spp->sp_syn, spp->sp_flags & HL_CONTAINED)))) { /* If we already tried matching in this line, and * there isn't a match before next_match_col, skip * this item. */ if (spp->sp_line_id == current_line_id && spp->sp_startcol >= next_match_col) continue; spp->sp_line_id = current_line_id; lc_col = current_col - spp->sp_offsets[SPO_LC_OFF]; if (lc_col < 0) lc_col = 0; regmatch.rmm_ic = spp->sp_ic; regmatch.regprog = spp->sp_prog; if (!syn_regexec(®match, current_lnum, (colnr_T)lc_col)) { /* no match in this line, try another one */ spp->sp_startcol = MAXCOL; continue; } /* * Compute the first column of the match. */ syn_add_start_off(&pos, ®match, spp, SPO_MS_OFF, -1); if (pos.lnum > current_lnum) { /* must have used end of match in a next line, * we can't handle that */ spp->sp_startcol = MAXCOL; continue; } startcol = pos.col; /* remember the next column where this pattern * matches in the current line */ spp->sp_startcol = startcol; /* * If a previously found match starts at a lower * column number, don't use this one. */ if (startcol >= next_match_col) continue; /* * If we matched this pattern at this position * before, skip it. Must retry in the next * column, because it may match from there. */ if (did_match_already(idx)) { try_next_column = TRUE; continue; } endpos.lnum = regmatch.endpos[0].lnum; endpos.col = regmatch.endpos[0].col; /* Compute the highlight start. */ syn_add_start_off(&hl_startpos, ®match, spp, SPO_HS_OFF, -1); /* Compute the region start. */ /* Default is to use the end of the match. */ syn_add_end_off(&eos_pos, ®match, spp, SPO_RS_OFF, 0); /* * Grab the external submatches before they get * overwritten. Reference count doesn't change. */ unref_extmatch(cur_extmatch); cur_extmatch = re_extmatch_out; re_extmatch_out = NULL; flags = 0; eoe_pos.lnum = 0; /* avoid warning */ eoe_pos.col = 0; end_idx = 0; hl_endpos.lnum = 0; /* * For a "oneline" the end must be found in the * same line too. Search for it after the end of * the match with the start pattern. Set the * resulting end positions at the same time. */ if (spp->sp_type == SPTYPE_START && (spp->sp_flags & HL_ONELINE)) { lpos_T startpos; startpos = endpos; find_endpos(idx, &startpos, &endpos, &hl_endpos, &flags, &eoe_pos, &end_idx, cur_extmatch); if (endpos.lnum == 0) continue; /* not found */ } /* * For a "match" the size must be > 0 after the * end offset needs has been added. Except when * syncing. */ else if (spp->sp_type == SPTYPE_MATCH) { syn_add_end_off(&hl_endpos, ®match, spp, SPO_HE_OFF, 0); syn_add_end_off(&endpos, ®match, spp, SPO_ME_OFF, 0); if (endpos.lnum == current_lnum && (int)endpos.col + syncing < startcol) { /* * If an empty string is matched, may need * to try matching again at next column. */ if (regmatch.startpos[0].col == regmatch.endpos[0].col) try_next_column = TRUE; continue; } } /* * keep the best match so far in next_match_* */ /* Highlighting must start after startpos and end * before endpos. */ if (hl_startpos.lnum == current_lnum && (int)hl_startpos.col < startcol) hl_startpos.col = startcol; limit_pos_zero(&hl_endpos, &endpos); next_match_idx = idx; next_match_col = startcol; next_match_m_endpos = endpos; next_match_h_endpos = hl_endpos; next_match_h_startpos = hl_startpos; next_match_flags = flags; next_match_eos_pos = eos_pos; next_match_eoe_pos = eoe_pos; next_match_end_idx = end_idx; unref_extmatch(next_match_extmatch); next_match_extmatch = cur_extmatch; cur_extmatch = NULL; } } } /* * If we found a match at the current column, use it. */ if (next_match_idx >= 0 && next_match_col == (int)current_col) { synpat_T *lspp; /* When a zero-width item matched which has a nextgroup, * don't push the item but set nextgroup. */ lspp = &(SYN_ITEMS(syn_buf)[next_match_idx]); if (next_match_m_endpos.lnum == current_lnum && next_match_m_endpos.col == current_col && lspp->sp_next_list != NULL) { current_next_list = lspp->sp_next_list; current_next_flags = lspp->sp_flags; keep_next_list = TRUE; zero_width_next_list = TRUE; next_match_idx = -1; } else cur_si = push_next_match(cur_si); found_match = TRUE; } } } /* * Handle searching for nextgroup match. */ if (current_next_list != NULL && !keep_next_list) { /* * If a nextgroup was not found, continue looking for one if: * - this is an empty line and the "skipempty" option was given * - we are on white space and the "skipwhite" option was given */ if (!found_match) { line = syn_getcurline(); if (((current_next_flags & HL_SKIPWHITE) && vim_iswhite(line[current_col])) || ((current_next_flags & HL_SKIPEMPTY) && *line == NUL)) break; } /* * If a nextgroup was found: Use it, and continue looking for * contained matches. * If a nextgroup was not found: Continue looking for a normal * match. * When did set current_next_list for a zero-width item and no * match was found don't loop (would get stuck). */ current_next_list = NULL; next_match_idx = -1; if (!zero_width_next_list) found_match = TRUE; } } while (found_match); /* * Use attributes from the current state, if within its highlighting. * If not, use attributes from the current-but-one state, etc. */ current_attr = 0; #ifdef FEAT_EVAL current_id = 0; current_trans_id = 0; #endif if (cur_si != NULL) { for (idx = current_state.ga_len - 1; idx >= 0; --idx) { sip = &CUR_STATE(idx); if ((current_lnum > sip->si_h_startpos.lnum || (current_lnum == sip->si_h_startpos.lnum && current_col >= sip->si_h_startpos.col)) && (sip->si_h_endpos.lnum == 0 || current_lnum < sip->si_h_endpos.lnum || (current_lnum == sip->si_h_endpos.lnum && current_col < sip->si_h_endpos.col))) { current_attr = sip->si_attr; #ifdef FEAT_EVAL current_id = sip->si_id; current_trans_id = sip->si_trans_id; #endif break; } } /* * Check for end of current state (and the states before it) at the * next column. Don't do this for syncing, because we would miss a * single character match. * First check if the current state ends at the current column. It * may be for an empty match and a containing item might end in the * current column. */ if (!syncing) { check_state_ends(); if (current_state.ga_len > 0) { ++current_col; check_state_ends(); --current_col; } } } /* nextgroup ends at end of line, unless "skipnl" or "skipemtpy" present */ if (current_next_list != NULL && syn_getcurline()[current_col + 1] == NUL && !(current_next_flags & (HL_SKIPNL | HL_SKIPEMPTY))) current_next_list = NULL; /* No longer need external matches. But keep next_match_extmatch. */ unref_extmatch(re_extmatch_out); re_extmatch_out = NULL; unref_extmatch(cur_extmatch); return current_attr; } /* * Check if we already matched pattern "idx" at the current column. */ static int did_match_already(idx) int idx; { int i; for (i = current_state.ga_len; --i >= 0; ) { if (CUR_STATE(i).si_m_startcol == (int)current_col && CUR_STATE(i).si_m_lnum == (int)current_lnum && CUR_STATE(i).si_idx == idx) return TRUE; } return FALSE; } /* * Push the next match onto the stack. */ static stateitem_T * push_next_match(cur_si) stateitem_T *cur_si; { synpat_T *spp; spp = &(SYN_ITEMS(syn_buf)[next_match_idx]); /* * Push the item in current_state stack; */ if (push_current_state(next_match_idx) == OK) { /* * If it's a start-skip-end type that crosses lines, figure out how * much it continues in this line. Otherwise just fill in the length. */ cur_si = &CUR_STATE(current_state.ga_len - 1); cur_si->si_h_startpos = next_match_h_startpos; cur_si->si_m_startcol = current_col; cur_si->si_m_lnum = current_lnum; cur_si->si_flags = spp->sp_flags; cur_si->si_next_list = spp->sp_next_list; cur_si->si_extmatch = ref_extmatch(next_match_extmatch); if (spp->sp_type == SPTYPE_START && !(spp->sp_flags & HL_ONELINE)) { /* Try to find the end pattern in the current line */ update_si_end(cur_si, (int)(next_match_m_endpos.col), TRUE); check_keepend(); } else { cur_si->si_m_endpos = next_match_m_endpos; cur_si->si_h_endpos = next_match_h_endpos; cur_si->si_ends = TRUE; cur_si->si_flags |= next_match_flags; cur_si->si_eoe_pos = next_match_eoe_pos; cur_si->si_end_idx = next_match_end_idx; } if (keepend_level < 0 && (cur_si->si_flags & HL_KEEPEND)) keepend_level = current_state.ga_len - 1; check_keepend(); update_si_attr(current_state.ga_len - 1); /* * If the start pattern has another highlight group, push another item * on the stack for the start pattern. */ if ( spp->sp_type == SPTYPE_START && spp->sp_syn_match_id != 0 && push_current_state(next_match_idx) == OK) { cur_si = &CUR_STATE(current_state.ga_len - 1); cur_si->si_h_startpos = next_match_h_startpos; cur_si->si_m_startcol = current_col; cur_si->si_m_lnum = current_lnum; cur_si->si_m_endpos = next_match_eos_pos; cur_si->si_h_endpos = next_match_eos_pos; cur_si->si_ends = TRUE; cur_si->si_end_idx = 0; cur_si->si_flags = HL_MATCH; cur_si->si_next_list = NULL; check_keepend(); update_si_attr(current_state.ga_len - 1); } } next_match_idx = -1; /* try other match next time */ return cur_si; } /* * Check for end of current state (and the states before it). */ static void check_state_ends() { stateitem_T *cur_si; int had_extend = FALSE; cur_si = &CUR_STATE(current_state.ga_len - 1); for (;;) { if (cur_si->si_ends && (cur_si->si_m_endpos.lnum < current_lnum || (cur_si->si_m_endpos.lnum == current_lnum && cur_si->si_m_endpos.col <= current_col))) { /* * If there is an end pattern group ID, highlight the end pattern * now. No need to pop the current item from the stack. * Only do this if the end pattern continues beyond the current * position. */ if (cur_si->si_end_idx && (cur_si->si_eoe_pos.lnum > current_lnum || (cur_si->si_eoe_pos.lnum == current_lnum && cur_si->si_eoe_pos.col > current_col))) { cur_si->si_idx = cur_si->si_end_idx; cur_si->si_end_idx = 0; cur_si->si_m_endpos = cur_si->si_eoe_pos; cur_si->si_h_endpos = cur_si->si_eoe_pos; cur_si->si_flags |= HL_MATCH; update_si_attr(current_state.ga_len - 1); break; } else { /* handle next_list, unless at end of line and no "skipnl" or * "skipempty" */ current_next_list = cur_si->si_next_list; current_next_flags = cur_si->si_flags; if (!(current_next_flags & (HL_SKIPNL | HL_SKIPEMPTY)) && syn_getcurline()[current_col] == NUL) current_next_list = NULL; /* When the ended item has "extend", another item with * "keepend" now needs to check for its end. */ if (cur_si->si_flags & HL_EXTEND) had_extend = TRUE; pop_current_state(); if (current_state.ga_len == 0) break; if (had_extend) { syn_update_ends(FALSE); if (current_state.ga_len == 0) break; } cur_si = &CUR_STATE(current_state.ga_len - 1); /* * Only for a region the search for the end continues after * the end of the contained item. If the contained match * included the end-of-line, break here, the region continues. * Don't do this when: * - "keepend" is used for the contained item * - not at the end of the line (could be end="x$"me=e-1). * - "excludenl" is used (HL_HAS_EOL won't be set) */ if (cur_si->si_idx >= 0 && SYN_ITEMS(syn_buf)[cur_si->si_idx].sp_type == SPTYPE_START && !(cur_si->si_flags & (HL_MATCH | HL_KEEPEND))) { update_si_end(cur_si, (int)current_col, TRUE); check_keepend(); if ((current_next_flags & HL_HAS_EOL) && keepend_level < 0 && syn_getcurline()[current_col] == NUL) break; } } } else break; } } /* * Update an entry in the current_state stack for a match or region. This * fills in si_attr, si_next_list and si_cont_list. */ static void update_si_attr(idx) int idx; { stateitem_T *sip = &CUR_STATE(idx); synpat_T *spp; spp = &(SYN_ITEMS(syn_buf)[sip->si_idx]); if (sip->si_flags & HL_MATCH) sip->si_id = spp->sp_syn_match_id; else sip->si_id = spp->sp_syn.id; sip->si_attr = syn_id2attr(sip->si_id); sip->si_trans_id = sip->si_id; if (sip->si_flags & HL_MATCH) sip->si_cont_list = NULL; else sip->si_cont_list = spp->sp_cont_list; /* * For transparent items, take attr from outer item. * Also take cont_list, if there is none. * Don't do this for the matchgroup of a start or end pattern. */ if ((spp->sp_flags & HL_TRANSP) && !(sip->si_flags & HL_MATCH)) { if (idx == 0) { sip->si_attr = 0; sip->si_trans_id = 0; if (sip->si_cont_list == NULL) sip->si_cont_list = ID_LIST_ALL; } else { sip->si_attr = CUR_STATE(idx - 1).si_attr; sip->si_trans_id = CUR_STATE(idx - 1).si_trans_id; if (sip->si_cont_list == NULL) { sip->si_flags |= HL_TRANS_CONT; sip->si_cont_list = CUR_STATE(idx - 1).si_cont_list; } } } } /* * Check the current stack for patterns with "keepend" flag. * Propagate the match-end to contained items, until a "skipend" item is found. */ static void check_keepend() { int i; lpos_T maxpos; stateitem_T *sip; /* * This check can consume a lot of time; only do it from the level where * there really is a keepend. */ if (keepend_level < 0) return; /* * Find the last index of an "extend" item. "keepend" items before that * won't do anything. If there is no "extend" item "i" will be * "keepend_level" and all "keepend" items will work normally. */ for (i = current_state.ga_len - 1; i > keepend_level; --i) if (CUR_STATE(i).si_flags & HL_EXTEND) break; maxpos.lnum = 0; for ( ; i < current_state.ga_len; ++i) { sip = &CUR_STATE(i); if (maxpos.lnum != 0) { limit_pos_zero(&sip->si_m_endpos, &maxpos); limit_pos_zero(&sip->si_h_endpos, &maxpos); limit_pos_zero(&sip->si_eoe_pos, &maxpos); sip->si_ends = TRUE; } if (sip->si_ends && (sip->si_flags & HL_KEEPEND) && (maxpos.lnum == 0 || maxpos.lnum > sip->si_m_endpos.lnum || (maxpos.lnum == sip->si_m_endpos.lnum && maxpos.col > sip->si_m_endpos.col))) maxpos = sip->si_m_endpos; } } /* * Update an entry in the current_state stack for a start-skip-end pattern. * This finds the end of the current item, if it's in the current line. * * Return the flags for the matched END. */ static void update_si_end(sip, startcol, force) stateitem_T *sip; int startcol; /* where to start searching for the end */ int force; /* when TRUE overrule a previous end */ { lpos_T startpos; lpos_T endpos; lpos_T hl_endpos; lpos_T end_endpos; int end_idx; /* Don't update when it's already done. Can be a match of an end pattern * that started in a previous line. Watch out: can also be a "keepend" * from a containing item. */ if (!force && sip->si_m_endpos.lnum >= current_lnum) return; /* * We need to find the end of the region. It may continue in the next * line. */ end_idx = 0; startpos.lnum = current_lnum; startpos.col = startcol; find_endpos(sip->si_idx, &startpos, &endpos, &hl_endpos, &(sip->si_flags), &end_endpos, &end_idx, sip->si_extmatch); if (endpos.lnum == 0) { /* No end pattern matched. */ if (SYN_ITEMS(syn_buf)[sip->si_idx].sp_flags & HL_ONELINE) { /* a "oneline" never continues in the next line */ sip->si_ends = TRUE; sip->si_m_endpos.lnum = current_lnum; sip->si_m_endpos.col = (colnr_T)STRLEN(syn_getcurline()); } else { /* continues in the next line */ sip->si_ends = FALSE; sip->si_m_endpos.lnum = 0; } sip->si_h_endpos = sip->si_m_endpos; } else { /* match within this line */ sip->si_m_endpos = endpos; sip->si_h_endpos = hl_endpos; sip->si_eoe_pos = end_endpos; sip->si_ends = TRUE; sip->si_end_idx = end_idx; } } /* * Add a new state to the current state stack. * It is cleared and the index set to "idx". * Return FAIL if it's not possible (out of memory). */ static int push_current_state(idx) int idx; { if (ga_grow(¤t_state, 1) == FAIL) return FAIL; vim_memset(&CUR_STATE(current_state.ga_len), 0, sizeof(stateitem_T)); CUR_STATE(current_state.ga_len).si_idx = idx; ++current_state.ga_len; --current_state.ga_room; return OK; } /* * Remove a state from the current_state stack. */ static void pop_current_state() { if (current_state.ga_len) { unref_extmatch(CUR_STATE(current_state.ga_len - 1).si_extmatch); --current_state.ga_len; ++current_state.ga_room; } /* after the end of a pattern, try matching a keyword or pattern */ next_match_idx = -1; /* if first state with "keepend" is popped, reset keepend_level */ if (keepend_level >= current_state.ga_len) keepend_level = -1; } /* * Find the end of a start/skip/end syntax region after "startpos". * Only checks one line. * Also handles a match item that continued from a previous line. * If not found, the syntax item continues in the next line. m_endpos->lnum * will be 0. * If found, the end of the region and the end of the highlighting is * computed. */ static void find_endpos(idx, startpos, m_endpos, hl_endpos, flagsp, end_endpos, end_idx, start_ext) int idx; /* index of the pattern */ lpos_T *startpos; /* where to start looking for an END match */ lpos_T *m_endpos; /* return: end of match */ lpos_T *hl_endpos; /* return: end of highlighting */ long *flagsp; /* return: flags of matching END */ lpos_T *end_endpos; /* return: end of end pattern match */ int *end_idx; /* return: group ID for end pat. match, or 0 */ reg_extmatch_T *start_ext; /* submatches from the start pattern */ { colnr_T matchcol; synpat_T *spp, *spp_skip; int start_idx; int best_idx; regmmatch_T regmatch; regmmatch_T best_regmatch; /* startpos/endpos of best match */ lpos_T pos; char_u *line; int had_match = FALSE; /* * Check for being called with a START pattern. * Can happen with a match that continues to the next line, because it * contained a region. */ spp = &(SYN_ITEMS(syn_buf)[idx]); if (spp->sp_type != SPTYPE_START) { *hl_endpos = *startpos; return; } /* * Find the SKIP or first END pattern after the last START pattern. */ for (;;) { spp = &(SYN_ITEMS(syn_buf)[idx]); if (spp->sp_type != SPTYPE_START) break; ++idx; } /* * Lookup the SKIP pattern (if present) */ if (spp->sp_type == SPTYPE_SKIP) { spp_skip = spp; ++idx; } else spp_skip = NULL; /* Setup external matches for syn_regexec(). */ unref_extmatch(re_extmatch_in); re_extmatch_in = ref_extmatch(start_ext); matchcol = startpos->col; /* start looking for a match at sstart */ start_idx = idx; /* remember the first END pattern. */ best_regmatch.startpos[0].col = 0; /* avoid compiler warning */ for (;;) { /* * Find end pattern that matches first after "matchcol". */ best_idx = -1; for (idx = start_idx; idx < syn_buf->b_syn_patterns.ga_len; ++idx) { int lc_col = matchcol; spp = &(SYN_ITEMS(syn_buf)[idx]); if (spp->sp_type != SPTYPE_END) /* past last END pattern */ break; lc_col -= spp->sp_offsets[SPO_LC_OFF]; if (lc_col < 0) lc_col = 0; regmatch.rmm_ic = spp->sp_ic; regmatch.regprog = spp->sp_prog; if (syn_regexec(®match, startpos->lnum, lc_col)) { if (best_idx == -1 || regmatch.startpos[0].col < best_regmatch.startpos[0].col) { best_idx = idx; best_regmatch.startpos[0] = regmatch.startpos[0]; best_regmatch.endpos[0] = regmatch.endpos[0]; } } } /* * If all end patterns have been tried, and there is no match, the * item continues until end-of-line. */ if (best_idx == -1) break; /* * If the skip pattern matches before the end pattern, * continue searching after the skip pattern. */ if (spp_skip != NULL) { int lc_col = matchcol - spp_skip->sp_offsets[SPO_LC_OFF]; if (lc_col < 0) lc_col = 0; regmatch.rmm_ic = spp_skip->sp_ic; regmatch.regprog = spp_skip->sp_prog; if (syn_regexec(®match, startpos->lnum, lc_col) && regmatch.startpos[0].col <= best_regmatch.startpos[0].col) { /* Add offset to skip pattern match */ syn_add_end_off(&pos, ®match, spp_skip, SPO_ME_OFF, 1); /* If the skip pattern goes on to the next line, there is no * match with an end pattern in this line. */ if (pos.lnum > startpos->lnum) break; line = ml_get_buf(syn_buf, startpos->lnum, FALSE); /* take care of an empty match or negative offset */ if (pos.col <= matchcol) ++matchcol; else if (pos.col <= regmatch.endpos[0].col) matchcol = pos.col; else /* Be careful not to jump over the NUL at the end-of-line */ for (matchcol = regmatch.endpos[0].col; line[matchcol] != NUL && matchcol < pos.col; ++matchcol) ; /* if the skip pattern includes end-of-line, break here */ if (line[matchcol] == NUL) break; continue; /* start with first end pattern again */ } } /* * Match from start pattern to end pattern. * Correct for match and highlight offset of end pattern. */ spp = &(SYN_ITEMS(syn_buf)[best_idx]); syn_add_end_off(m_endpos, &best_regmatch, spp, SPO_ME_OFF, 1); /* can't end before the start */ if (m_endpos->lnum == startpos->lnum && m_endpos->col < startpos->col) m_endpos->col = startpos->col; syn_add_end_off(end_endpos, &best_regmatch, spp, SPO_HE_OFF, 1); /* can't end before the start */ if (end_endpos->lnum == startpos->lnum && end_endpos->col < startpos->col) end_endpos->col = startpos->col; /* can't end after the match */ limit_pos(end_endpos, m_endpos); /* * If the end group is highlighted differently, adjust the pointers. */ if (spp->sp_syn_match_id != spp->sp_syn.id && spp->sp_syn_match_id != 0) { *end_idx = best_idx; if (spp->sp_off_flags & (1 << (SPO_RE_OFF + SPO_COUNT))) { hl_endpos->lnum = best_regmatch.endpos[0].lnum; hl_endpos->col = best_regmatch.endpos[0].col; } else { hl_endpos->lnum = best_regmatch.startpos[0].lnum; hl_endpos->col = best_regmatch.startpos[0].col; } hl_endpos->col += spp->sp_offsets[SPO_RE_OFF]; /* can't end before the start */ if (hl_endpos->lnum == startpos->lnum && hl_endpos->col < startpos->col) hl_endpos->col = startpos->col; limit_pos(hl_endpos, m_endpos); /* now the match ends where the highlighting ends (why?) */ m_endpos->col = hl_endpos->col; } else { *end_idx = 0; *hl_endpos = *end_endpos; } *flagsp = spp->sp_flags; had_match = TRUE; break; } /* no match for an END pattern in this line */ if (!had_match) m_endpos->lnum = 0; /* Remove external matches. */ unref_extmatch(re_extmatch_in); re_extmatch_in = NULL; } /* * Limit "pos" not to be after "limit". */ static void limit_pos(pos, limit) lpos_T *pos; lpos_T *limit; { if (pos->lnum > limit->lnum) *pos = *limit; else if (pos->lnum == limit->lnum && pos->col > limit->col) pos->col = limit->col; } /* * Limit "pos" not to be after "limit", unless pos->lnum is zero. */ static void limit_pos_zero(pos, limit) lpos_T *pos; lpos_T *limit; { if (pos->lnum == 0) *pos = *limit; else limit_pos(pos, limit); } /* * Add offset to matched text for end of match or highlight. */ static void syn_add_end_off(result, regmatch, spp, idx, extra) lpos_T *result; /* returned position */ regmmatch_T *regmatch; /* start/end of match */ synpat_T *spp; /* matched pattern */ int idx; /* index of offset */ int extra; /* extra chars for offset to start */ { int col; if (spp->sp_off_flags & (1 << idx)) { result->lnum = regmatch->startpos[0].lnum; col = regmatch->startpos[0].col + extra; } else { result->lnum = regmatch->endpos[0].lnum; col = regmatch->endpos[0].col; } col += spp->sp_offsets[idx]; if (col < 0) result->col = 0; else result->col = col; } /* * Add offset to matched text for start of match or highlight. * Avoid resulting column to become negative. */ static void syn_add_start_off(result, regmatch, spp, idx, extra) lpos_T *result; /* returned position */ regmmatch_T *regmatch; /* start/end of match */ synpat_T *spp; int idx; int extra; /* extra chars for offset to end */ { int col; if (spp->sp_off_flags & (1 << (idx + SPO_COUNT))) { result->lnum = regmatch->endpos[0].lnum; col = regmatch->endpos[0].col + extra; } else { result->lnum = regmatch->startpos[0].lnum; col = regmatch->startpos[0].col; } col += spp->sp_offsets[idx]; if (col < 0) result->col = 0; else result->col = col; } /* * Get current line in syntax buffer. */ static char_u * syn_getcurline() { return ml_get_buf(syn_buf, current_lnum, FALSE); } /* * Call vim_regexec() to match in syn_buf. * Returns TRUE when there is a match. */ static int syn_regexec(rmp, lnum, col) regmmatch_T *rmp; linenr_T lnum; colnr_T col; { if (vim_regexec_multi(rmp, syn_win, syn_buf, lnum, col) > 0) { rmp->startpos[0].lnum += lnum; rmp->endpos[0].lnum += lnum; return TRUE; } return FALSE; } /* * Check one position in a line for a matching keyword. * The caller must check if a keyword can start at startcol. * Return it's ID if found, 0 otherwise. */ static int check_keyword_id(line, startcol, endcolp, flagsp, next_listp, cur_si) char_u *line; int startcol; /* position in line to check for keyword */ int *endcolp; /* return: character after found keyword */ long *flagsp; /* return: flags of matching keyword */ short **next_listp; /* return: next_list of matching keyword */ stateitem_T *cur_si; /* item at the top of the stack */ { keyentry_T *ktab; char_u *p; int round; int len; char_u keyword[MAXKEYWLEN + 1]; /* assume max. keyword len is 80 */ /* Find first character after the keyword. First character was already * checked. */ p = line + startcol; len = 0; do { #ifdef FEAT_MBYTE if (has_mbyte) len += (*mb_ptr2len_check)(p + len); else #endif ++len; } while (vim_iswordc_buf(p + len, syn_buf)); if (len > MAXKEYWLEN) return 0; /* * Must make a copy of the keyword, so we can add a NUL and make it * lowercase. */ STRNCPY(keyword, p, len); keyword[len] = NUL; /* * Try twice: * 1. matching case * 2. ignoring case */ for (round = 1; round <= 2; ++round) { if ((round == 1 ? syn_buf->b_keywtab : syn_buf->b_keywtab_ic) == NULL) continue; if (round == 1) /* match case */ ktab = syn_buf->b_keywtab[syn_khash(keyword)]; else /* round == 2, ignore case */ { p = str_foldcase(keyword, (int)STRLEN(keyword)); if (p != NULL) { STRNCPY(keyword, p, MAXKEYWLEN); keyword[MAXKEYWLEN] = NUL; vim_free(p); } ktab = syn_buf->b_keywtab_ic[syn_khash(keyword)]; } /* * Find keywords that match. * When current_next_list is non-zero accept only that group, otherwise: * Accept a not-contained keyword at toplevel. * Accept a keyword at other levels only if it is in the contains list. */ for ( ; ktab != NULL; ktab = ktab->next) if ( STRCMP(keyword, ktab->keyword) == 0 && (current_next_list != 0 ? in_id_list(NULL, current_next_list, &ktab->k_syn, 0) : (cur_si == NULL ? !(ktab->flags & HL_CONTAINED) : in_id_list(cur_si, cur_si->si_cont_list, &ktab->k_syn, ktab->flags & HL_CONTAINED)))) { *endcolp = startcol + len; *flagsp = ktab->flags; *next_listp = ktab->next_list; return ktab->k_syn.id; } } return 0; } /* * Handle ":syntax case" command. */ /* ARGSUSED */ static void syn_cmd_case(eap, syncing) exarg_T *eap; int syncing; /* not used */ { char_u *arg = eap->arg; char_u *next; eap->nextcmd = find_nextcmd(arg); if (eap->skip) return; next = skiptowhite(arg); if (STRNICMP(arg, "match", 5) == 0 && next - arg == 5) curbuf->b_syn_ic = FALSE; else if (STRNICMP(arg, "ignore", 6) == 0 && next - arg == 6) curbuf->b_syn_ic = TRUE; else EMSG2(_("E390: Illegal argument: %s"), arg); } /* * Clear all syntax info for one buffer. */ void syntax_clear(buf) buf_T *buf; { int i; curbuf->b_syn_ic = FALSE; /* Use case, by default */ curbuf->b_syn_containedin = FALSE; /* free the keywords */ free_keywtab(buf->b_keywtab); buf->b_keywtab = NULL; free_keywtab(buf->b_keywtab_ic); buf->b_keywtab_ic = NULL; /* free the syntax patterns */ for (i = buf->b_syn_patterns.ga_len; --i >= 0; ) syn_clear_pattern(buf, i); ga_clear(&buf->b_syn_patterns); /* free the syntax clusters */ for (i = buf->b_syn_clusters.ga_len; --i >= 0; ) syn_clear_cluster(buf, i); ga_clear(&buf->b_syn_clusters); buf->b_syn_sync_flags = 0; buf->b_syn_sync_minlines = 0; buf->b_syn_sync_maxlines = 0; buf->b_syn_sync_linebreaks = 0; vim_free(buf->b_syn_linecont_prog); buf->b_syn_linecont_prog = NULL; vim_free(buf->b_syn_linecont_pat); buf->b_syn_linecont_pat = NULL; #ifdef FEAT_FOLDING buf->b_syn_folditems = 0; #endif /* free the stored states */ syn_stack_free_all(buf); invalidate_current_state(); } /* * Clear syncing info for one buffer. */ static void syntax_sync_clear() { int i; /* free the syntax patterns */ for (i = curbuf->b_syn_patterns.ga_len; --i >= 0; ) if (SYN_ITEMS(curbuf)[i].sp_syncing) syn_remove_pattern(curbuf, i); curbuf->b_syn_sync_flags = 0; curbuf->b_syn_sync_minlines = 0; curbuf->b_syn_sync_maxlines = 0; curbuf->b_syn_sync_linebreaks = 0; vim_free(curbuf->b_syn_linecont_prog); curbuf->b_syn_linecont_prog = NULL; vim_free(curbuf->b_syn_linecont_pat); curbuf->b_syn_linecont_pat = NULL; syn_stack_free_all(curbuf); /* Need to recompute all syntax. */ } /* * Remove one pattern from the buffer's pattern list. */ static void syn_remove_pattern(buf, idx) buf_T *buf; int idx; { synpat_T *spp; spp = &(SYN_ITEMS(buf)[idx]); #ifdef FEAT_FOLDING if (spp->sp_flags & HL_FOLD) --buf->b_syn_folditems; #endif syn_clear_pattern(buf, idx); mch_memmove(spp, spp + 1, sizeof(synpat_T) * (buf->b_syn_patterns.ga_len - idx - 1)); --buf->b_syn_patterns.ga_len; --buf->b_syn_patterns.ga_room; } /* * Clear and free one syntax pattern. When clearing all, must be called from * last to first! */ static void syn_clear_pattern(buf, i) buf_T *buf; int i; { vim_free(SYN_ITEMS(buf)[i].sp_pattern); vim_free(SYN_ITEMS(buf)[i].sp_prog); /* Only free sp_cont_list and sp_next_list of first start pattern */ if (i == 0 || SYN_ITEMS(buf)[i - 1].sp_type != SPTYPE_START) { vim_free(SYN_ITEMS(buf)[i].sp_cont_list); vim_free(SYN_ITEMS(buf)[i].sp_next_list); } } /* * Clear and free one syntax cluster. */ static void syn_clear_cluster(buf, i) buf_T *buf; int i; { vim_free(SYN_CLSTR(buf)[i].scl_name); vim_free(SYN_CLSTR(buf)[i].scl_name_u); vim_free(SYN_CLSTR(buf)[i].scl_list); } /* * Handle ":syntax clear" command. */ static void syn_cmd_clear(eap, syncing) exarg_T *eap; int syncing; { char_u *arg = eap->arg; char_u *arg_end; int id; eap->nextcmd = find_nextcmd(arg); if (eap->skip) return; /* * We have to disable this within ":syn include @group filename", * because otherwise @group would get deleted. * Only required for Vim 5.x syntax files, 6.0 ones don't contain ":syn * clear". */ if (curbuf->b_syn_topgrp != 0) return; if (ends_excmd(*arg)) { /* * No argument: Clear all syntax items. */ if (syncing) syntax_sync_clear(); else { syntax_clear(curbuf); do_unlet((char_u *)"b:current_syntax"); } } else { /* * Clear the group IDs that are in the argument. */ while (!ends_excmd(*arg)) { arg_end = skiptowhite(arg); if (*arg == '@') { id = syn_scl_namen2id(arg + 1, (int)(arg_end - arg - 1)); if (id == 0) { EMSG2(_("E391: No such syntax cluster: %s"), arg); break; } else { /* * We can't physically delete a cluster without changing * the IDs of other clusters, so we do the next best thing * and make it empty. */ short scl_id = id - SYNID_CLUSTER; vim_free(SYN_CLSTR(curbuf)[scl_id].scl_list); SYN_CLSTR(curbuf)[scl_id].scl_list = NULL; } } else { id = syn_namen2id(arg, (int)(arg_end - arg)); if (id == 0) { EMSG2(_(e_nogroup), arg); break; } else syn_clear_one(id, syncing); } arg = skipwhite(arg_end); } } redraw_curbuf_later(NOT_VALID); syn_stack_free_all(curbuf); /* Need to recompute all syntax. */ } /* * Clear one syntax group for the current buffer. */ static void syn_clear_one(id, syncing) int id; int syncing; { synpat_T *spp; int idx; /* Clear keywords only when not ":syn sync clear group-name" */ if (!syncing) { (void)syn_clear_keyword(id, curbuf->b_keywtab); (void)syn_clear_keyword(id, curbuf->b_keywtab_ic); } /* clear the patterns for "id" */ for (idx = curbuf->b_syn_patterns.ga_len; --idx >= 0; ) { spp = &(SYN_ITEMS(curbuf)[idx]); if (spp->sp_syn.id != id || spp->sp_syncing != syncing) continue; syn_remove_pattern(curbuf, idx); } } /* * Handle ":syntax on" command. */ /* ARGSUSED */ static void syn_cmd_on(eap, syncing) exarg_T *eap; int syncing; /* not used */ { syn_cmd_onoff(eap, "syntax"); } /* * Handle ":syntax enable" command. */ /* ARGSUSED */ static void syn_cmd_enable(eap, syncing) exarg_T *eap; int syncing; /* not used */ { set_internal_string_var((char_u *)"syntax_cmd", (char_u *)"enable"); syn_cmd_onoff(eap, "syntax"); do_unlet((char_u *)"g:syntax_cmd"); } /* * Handle ":syntax reset" command. */ /* ARGSUSED */ static void syn_cmd_reset(eap, syncing) exarg_T *eap; int syncing; /* not used */ { eap->nextcmd = check_nextcmd(eap->arg); if (!eap->skip) { set_internal_string_var((char_u *)"syntax_cmd", (char_u *)"reset"); do_cmdline_cmd((char_u *)"runtime! syntax/syncolor.vim"); do_unlet((char_u *)"g:syntax_cmd"); } } /* * Handle ":syntax manual" command. */ /* ARGSUSED */ static void syn_cmd_manual(eap, syncing) exarg_T *eap; int syncing; /* not used */ { syn_cmd_onoff(eap, "manual"); } /* * Handle ":syntax off" command. */ /* ARGSUSED */ static void syn_cmd_off(eap, syncing) exarg_T *eap; int syncing; /* not used */ { syn_cmd_onoff(eap, "nosyntax"); } static void syn_cmd_onoff(eap, name) exarg_T *eap; char *name; { char_u buf[100]; eap->nextcmd = check_nextcmd(eap->arg); if (!eap->skip) { STRCPY(buf, "so "); sprintf((char *)buf + 3, SYNTAX_FNAME, name); do_cmdline_cmd(buf); } } /* * Handle ":syntax [list]" command: list current syntax words. */ static void syn_cmd_list(eap, syncing) exarg_T *eap; int syncing; /* when TRUE: list syncing items */ { char_u *arg = eap->arg; int id; char_u *arg_end; eap->nextcmd = find_nextcmd(arg); if (eap->skip) return; if (!syntax_present(curbuf)) { MSG(_("No Syntax items defined for this buffer")); return; } if (syncing) { if (curbuf->b_syn_sync_flags & SF_CCOMMENT) { MSG_PUTS(_("syncing on C-style comments")); syn_lines_msg(); syn_match_msg(); return; } else if (!(curbuf->b_syn_sync_flags & SF_MATCH)) { if (curbuf->b_syn_sync_minlines == 0) MSG_PUTS(_("no syncing")); else { MSG_PUTS(_("syncing starts ")); msg_outnum(curbuf->b_syn_sync_minlines); MSG_PUTS(_(" lines before top line")); syn_match_msg(); } return; } MSG_PUTS_TITLE(_("\n--- Syntax sync items ---")); if (curbuf->b_syn_sync_minlines > 0 || curbuf->b_syn_sync_maxlines > 0 || curbuf->b_syn_sync_linebreaks > 0) { MSG_PUTS(_("\nsyncing on items")); syn_lines_msg(); syn_match_msg(); } } else MSG_PUTS_TITLE(_("\n--- Syntax items ---")); if (ends_excmd(*arg)) { /* * No argument: List all group IDs and all syntax clusters. */ for (id = 1; id <= highlight_ga.ga_len && !got_int; ++id) syn_list_one(id, syncing, FALSE); for (id = 0; id < curbuf->b_syn_clusters.ga_len && !got_int; ++id) syn_list_cluster(id); } else { /* * List the group IDs and syntax clusters that are in the argument. */ while (!ends_excmd(*arg) && !got_int) { arg_end = skiptowhite(arg); if (*arg == '@') { id = syn_scl_namen2id(arg + 1, (int)(arg_end - arg - 1)); if (id == 0) EMSG2(_("E392: No such syntax cluster: %s"), arg); else syn_list_cluster(id - SYNID_CLUSTER); } else { id = syn_namen2id(arg, (int)(arg_end - arg)); if (id == 0) EMSG2(_(e_nogroup), arg); else syn_list_one(id, syncing, TRUE); } arg = skipwhite(arg_end); } } eap->nextcmd = check_nextcmd(arg); } static void syn_lines_msg() { if (curbuf->b_syn_sync_maxlines > 0 || curbuf->b_syn_sync_minlines > 0) { MSG_PUTS("; "); if (curbuf->b_syn_sync_minlines > 0) { MSG_PUTS(_("minimal ")); msg_outnum(curbuf->b_syn_sync_minlines); if (curbuf->b_syn_sync_maxlines) MSG_PUTS(", "); } if (curbuf->b_syn_sync_maxlines > 0) { MSG_PUTS(_("maximal ")); msg_outnum(curbuf->b_syn_sync_maxlines); } MSG_PUTS(_(" lines before top line")); } } static void syn_match_msg() { if (curbuf->b_syn_sync_linebreaks > 0) { MSG_PUTS(_("; match ")); msg_outnum(curbuf->b_syn_sync_linebreaks); MSG_PUTS(_(" line breaks")); } } static int last_matchgroup; struct name_list { int flag; char *name; }; static void syn_list_flags __ARGS((struct name_list *nl, int flags, int attr)); /* * List one syntax item, for ":syntax" or "syntax list syntax_name". */ static void syn_list_one(id, syncing, link_only) int id; int syncing; /* when TRUE: list syncing items */ int link_only; /* when TRUE; list link-only too */ { int attr; int idx; int did_header = FALSE; synpat_T *spp; static struct name_list namelist1[] = { {HL_DISPLAY, "display"}, {HL_CONTAINED, "contained"}, {HL_ONELINE, "oneline"}, {HL_KEEPEND, "keepend"}, {HL_EXTEND, "extend"}, {HL_EXCLUDENL, "excludenl"}, {HL_TRANSP, "transparent"}, {HL_FOLD, "fold"}, {0, NULL} }; static struct name_list namelist2[] = { {HL_SKIPWHITE, "skipwhite"}, {HL_SKIPNL, "skipnl"}, {HL_SKIPEMPTY, "skipempty"}, {0, NULL} }; attr = hl_attr(HLF_D); /* highlight like directories */ /* list the keywords for "id" */ if (!syncing) { did_header = syn_list_keywords(id, curbuf->b_keywtab, FALSE, attr); did_header = syn_list_keywords(id, curbuf->b_keywtab_ic, did_header, attr); } /* list the patterns for "id" */ for (idx = 0; idx < curbuf->b_syn_patterns.ga_len && !got_int; ++idx) { spp = &(SYN_ITEMS(curbuf)[idx]); if (spp->sp_syn.id != id || spp->sp_syncing != syncing) continue; (void)syn_list_header(did_header, 999, id); did_header = TRUE; last_matchgroup = 0; if (spp->sp_type == SPTYPE_MATCH) { put_pattern("match", ' ', spp, attr); msg_putchar(' '); } else if (spp->sp_type == SPTYPE_START) { while (SYN_ITEMS(curbuf)[idx].sp_type == SPTYPE_START) put_pattern("start", '=', &SYN_ITEMS(curbuf)[idx++], attr); if (SYN_ITEMS(curbuf)[idx].sp_type == SPTYPE_SKIP) put_pattern("skip", '=', &SYN_ITEMS(curbuf)[idx++], attr); while (idx < curbuf->b_syn_patterns.ga_len && SYN_ITEMS(curbuf)[idx].sp_type == SPTYPE_END) put_pattern("end", '=', &SYN_ITEMS(curbuf)[idx++], attr); --idx; msg_putchar(' '); } syn_list_flags(namelist1, spp->sp_flags, attr); if (spp->sp_cont_list != NULL) put_id_list((char_u *)"contains", spp->sp_cont_list, attr); if (spp->sp_syn.cont_in_list != NULL) put_id_list((char_u *)"containedin", spp->sp_syn.cont_in_list, attr); if (spp->sp_next_list != NULL) { put_id_list((char_u *)"nextgroup", spp->sp_next_list, attr); syn_list_flags(namelist2, spp->sp_flags, attr); } if (spp->sp_flags & (HL_SYNC_HERE|HL_SYNC_THERE)) { if (spp->sp_flags & HL_SYNC_HERE) msg_puts_attr((char_u *)"grouphere", attr); else msg_puts_attr((char_u *)"groupthere", attr); msg_putchar(' '); if (spp->sp_sync_idx >= 0) msg_outtrans(HL_TABLE()[SYN_ITEMS(curbuf) [spp->sp_sync_idx].sp_syn.id - 1].sg_name); else MSG_PUTS("NONE"); msg_putchar(' '); } } /* list the link, if there is one */ if (HL_TABLE()[id - 1].sg_link && (did_header || link_only) && !got_int) { (void)syn_list_header(did_header, 999, id); msg_puts_attr((char_u *)"links to", attr); msg_putchar(' '); msg_outtrans(HL_TABLE()[HL_TABLE()[id - 1].sg_link - 1].sg_name); } } static void syn_list_flags(nl, flags, attr) struct name_list *nl; int flags; int attr; { int i; for (i = 0; nl[i].flag != 0; ++i) if (flags & nl[i].flag) { msg_puts_attr((char_u *)nl[i].name, attr); msg_putchar(' '); } } /* * List one syntax cluster, for ":syntax" or "syntax list syntax_name". */ static void syn_list_cluster(id) int id; { int endcol = 15; /* slight hack: roughly duplicate the guts of syn_list_header() */ msg_putchar('\n'); msg_outtrans(SYN_CLSTR(curbuf)[id].scl_name); if (msg_col >= endcol) /* output at least one space */ endcol = msg_col + 1; if (Columns <= endcol) /* avoid hang for tiny window */ endcol = Columns - 1; msg_advance(endcol); if (SYN_CLSTR(curbuf)[id].scl_list != NULL) { put_id_list((char_u *)"cluster", SYN_CLSTR(curbuf)[id].scl_list, hl_attr(HLF_D)); } else { msg_puts_attr((char_u *)"cluster", hl_attr(HLF_D)); msg_puts((char_u *)"=NONE"); } } static void put_id_list(name, list, attr) char_u *name; short *list; int attr; { short *p; msg_puts_attr(name, attr); msg_putchar('='); for (p = list; *p; ++p) { if (*p >= SYNID_ALLBUT && *p < SYNID_TOP) { if (p[1]) MSG_PUTS("ALLBUT"); else MSG_PUTS("ALL"); } else if (*p >= SYNID_TOP && *p < SYNID_CONTAINED) { MSG_PUTS("TOP"); } else if (*p >= SYNID_CONTAINED && *p < SYNID_CLUSTER) { MSG_PUTS("CONTAINED"); } else if (*p >= SYNID_CLUSTER) { short scl_id = *p - SYNID_CLUSTER; msg_putchar('@'); msg_outtrans(SYN_CLSTR(curbuf)[scl_id].scl_name); } else msg_outtrans(HL_TABLE()[*p - 1].sg_name); if (p[1]) msg_putchar(','); } msg_putchar(' '); } static void put_pattern(s, c, spp, attr) char *s; int c; synpat_T *spp; int attr; { long n; int mask; int first; static char *sepchars = "/+=-#@\"|'^&"; int i; /* May have to write "matchgroup=group" */ if (last_matchgroup != spp->sp_syn_match_id) { last_matchgroup = spp->sp_syn_match_id; msg_puts_attr((char_u *)"matchgroup", attr); msg_putchar('='); if (last_matchgroup == 0) msg_outtrans((char_u *)"NONE"); else msg_outtrans(HL_TABLE()[last_matchgroup - 1].sg_name); msg_putchar(' '); } /* output the name of the pattern and an '=' or ' ' */ msg_puts_attr((char_u *)s, attr); msg_putchar(c); /* output the pattern, in between a char that is not in the pattern */ for (i = 0; vim_strchr(spp->sp_pattern, sepchars[i]) != NULL; ) if (sepchars[++i] == NUL) { i = 0; /* no good char found, just use the first one */ break; } msg_putchar(sepchars[i]); msg_outtrans(spp->sp_pattern); msg_putchar(sepchars[i]); /* output any pattern options */ first = TRUE; for (i = 0; i < SPO_COUNT; ++i) { mask = (1 << i); if (spp->sp_off_flags & (mask + (mask << SPO_COUNT))) { if (!first) msg_putchar(','); /* separate with commas */ msg_puts((char_u *)spo_name_tab[i]); n = spp->sp_offsets[i]; if (i != SPO_LC_OFF) { if (spp->sp_off_flags & mask) msg_putchar('s'); else msg_putchar('e'); if (n > 0) msg_putchar('+'); } if (n || i == SPO_LC_OFF) msg_outnum(n); first = FALSE; } } msg_putchar(' '); } /* * List or clear the keywords for one syntax group. * Return TRUE if the header has been printed. */ static int syn_list_keywords(id, ktabp, did_header, attr) int id; keyentry_T **ktabp; int did_header; /* header has already been printed */ int attr; { int i; int outlen; keyentry_T *ktab; int prev_contained = 0; short *prev_next_list = NULL; short *prev_cont_in_list = NULL; int prev_skipnl = 0; int prev_skipwhite = 0; int prev_skipempty = 0; if (ktabp == NULL) return did_header; /* * Unfortunately, this list of keywords is not sorted on alphabet but on * hash value... */ for (i = 0; i < KHASH_SIZE; ++i) { for (ktab = ktabp[i]; ktab != NULL && !got_int; ktab = ktab->next) { if (ktab->k_syn.id == id) { if (prev_contained != (ktab->flags & HL_CONTAINED) || prev_skipnl != (ktab->flags & HL_SKIPNL) || prev_skipwhite != (ktab->flags & HL_SKIPWHITE) || prev_skipempty != (ktab->flags & HL_SKIPEMPTY) || prev_cont_in_list != ktab->k_syn.cont_in_list || prev_next_list != ktab->next_list) outlen = 9999; else outlen = (int)STRLEN(ktab->keyword); /* output "contained" and "nextgroup" on each line */ if (syn_list_header(did_header, outlen, id)) { prev_contained = 0; prev_next_list = NULL; prev_cont_in_list = NULL; prev_skipnl = 0; prev_skipwhite = 0; prev_skipempty = 0; } did_header = TRUE; if (prev_contained != (ktab->flags & HL_CONTAINED)) { msg_puts_attr((char_u *)"contained", attr); msg_putchar(' '); prev_contained = (ktab->flags & HL_CONTAINED); } if (ktab->k_syn.cont_in_list != prev_cont_in_list) { put_id_list((char_u *)"containedin", ktab->k_syn.cont_in_list, attr); msg_putchar(' '); prev_cont_in_list = ktab->k_syn.cont_in_list; } if (ktab->next_list != prev_next_list) { put_id_list((char_u *)"nextgroup", ktab->next_list, attr); msg_putchar(' '); prev_next_list = ktab->next_list; if (ktab->flags & HL_SKIPNL) { msg_puts_attr((char_u *)"skipnl", attr); msg_putchar(' '); prev_skipnl = (ktab->flags & HL_SKIPNL); } if (ktab->flags & HL_SKIPWHITE) { msg_puts_attr((char_u *)"skipwhite", attr); msg_putchar(' '); prev_skipwhite = (ktab->flags & HL_SKIPWHITE); } if (ktab->flags & HL_SKIPEMPTY) { msg_puts_attr((char_u *)"skipempty", attr); msg_putchar(' '); prev_skipempty = (ktab->flags & HL_SKIPEMPTY); } } msg_outtrans(ktab->keyword); } } } return did_header; } static void syn_clear_keyword(id, ktabp) int id; keyentry_T **ktabp; { int i; keyentry_T *ktab; keyentry_T *ktab_prev; keyentry_T *ktab_next; if (ktabp == NULL) /* no keywords present */ return; for (i = 0; i < KHASH_SIZE; ++i) { ktab_prev = NULL; for (ktab = ktabp[i]; ktab != NULL; ) { if (ktab->k_syn.id == id) { ktab_next = ktab->next; if (ktab_prev == NULL) ktabp[i] = ktab_next; else ktab_prev->next = ktab_next; vim_free(ktab); ktab = ktab_next; } else { ktab_prev = ktab; ktab = ktab->next; } } } } /* * Recursive function to free() a branch of a kwordtab. */ static void free_keywtab(ktabp) keyentry_T **ktabp; { int i; keyentry_T *ktab; keyentry_T *ktab_next; if (ktabp != NULL) { for (i = 0; i < KHASH_SIZE; ++i) for (ktab = ktabp[i]; ktab != NULL; ktab = ktab_next) { ktab_next = ktab->next; vim_free(ktab->next_list); vim_free(ktab->k_syn.cont_in_list); vim_free(ktab); } vim_free(ktabp); } } /* * Add a keyword to the list of keywords. */ static void add_keyword(name, id, flags, cont_in_list, next_list) char_u *name; /* name of keyword */ int id; /* group ID for this keyword */ int flags; /* flags for this keyword */ short *cont_in_list; /* containedin for this keyword */ short *next_list; /* nextgroup for this keyword */ { keyentry_T *ktab; keyentry_T ***ktabpp; int hash; char_u *name_ic = name; if (curbuf->b_syn_ic) { name_ic = str_foldcase(name, (int)STRLEN(name)); if (name_ic == NULL) name_ic = name; } ktab = (keyentry_T *)alloc((int)(sizeof(keyentry_T) + STRLEN(name_ic))); if (ktab == NULL) return; STRCPY(ktab->keyword, name_ic); if (name_ic != name) vim_free(name_ic); ktab->k_syn.id = id; ktab->k_syn.inc_tag = current_syn_inc_tag; ktab->flags = flags; ktab->k_syn.cont_in_list = copy_id_list(cont_in_list); if (cont_in_list != NULL) curbuf->b_syn_containedin = TRUE; ktab->next_list = copy_id_list(next_list); if (curbuf->b_syn_ic) ktabpp = &curbuf->b_keywtab_ic; else ktabpp = &curbuf->b_keywtab; if (*ktabpp == NULL) { *ktabpp = (keyentry_T **)alloc_clear( (int)(sizeof(keyentry_T *) * KHASH_SIZE)); if (*ktabpp == NULL) return; } hash = syn_khash(ktab->keyword); ktab->next = (*ktabpp)[hash]; (*ktabpp)[hash] = ktab; } /* * Compute a hash value for a keyword. Uses the ElfHash algorithm, which is * supposed to have an even distribution (suggested by Charles Campbell). */ static int syn_khash(p) char_u *p; { long_u hash = 0; long_u g; while (*p != NUL) { hash = (hash << 4) + *p++; /* clear low 4 bits of hash, add char */ g = hash & 0xf0000000L; /* g has high 4 bits of hash only */ if (g != 0) hash ^= g >> 24; /* xor g's high 4 bits into hash */ } return (int)(hash & KHASH_MASK); } /* * Get the start and end of the group name argument. * Return a pointer to the first argument. * Return NULL if the end of the command was found instead of further args. */ static char_u * get_group_name(arg, name_end) char_u *arg; /* start of the argument */ char_u **name_end; /* pointer to end of the name */ { char_u *rest; *name_end = skiptowhite(arg); rest = skipwhite(*name_end); /* * Check if there are enough arguments. The first argument may be a * pattern, where '|' is allowed, so only check for NUL. */ if (ends_excmd(*arg) || *rest == NUL) return NULL; return rest; } /* * Check for syntax command option arguments. * This can be called at any place in the list of arguments, and just picks * out the arguments that are known. Can be called several times in a row to * collect all options in between other arguments. * Return a pointer to the next argument (which isn't an option). * Return NULL for any error; */ static char_u * get_syn_options(arg, flagsp, keyword, sync_idx, cont_list, cont_in_list, next_list) char_u *arg; /* next argument */ int *flagsp; /* flags for contained and transpartent */ int keyword; /* TRUE for ":syn keyword" */ int *sync_idx; /* syntax item for "grouphere" argument, NULL if not allowed */ short **cont_list; /* group IDs for "contains" argument, NULL if not allowed */ short **cont_in_list; /* group IDs for "containedin" argument, NULL if not allowed */ short **next_list; /* group IDs for "nextgroup" argument */ { int flags; char_u *gname_start, *gname; int syn_id; int len; int i; int fidx; static struct flag { char *name; int len; int val; } flagtab[] = { {"contained", 9, HL_CONTAINED}, {"oneline", 7, HL_ONELINE}, {"keepend", 7, HL_KEEPEND}, {"extend", 6, HL_EXTEND}, {"excludenl", 9, HL_EXCLUDENL}, {"transparent", 11, HL_TRANSP}, {"skipnl", 6, HL_SKIPNL}, {"skipwhite", 9, HL_SKIPWHITE}, {"skipempty", 9, HL_SKIPEMPTY}, {"grouphere", 9, HL_SYNC_HERE}, {"groupthere", 10, HL_SYNC_THERE}, {"display", 7, HL_DISPLAY}, {"fold", 4, HL_FOLD}, }; #define MLEN 12 char lowname[MLEN]; int llen; if (arg == NULL) /* already detected error */ return NULL; flags = *flagsp; for (;;) { /* STRNICMP() is a bit slow, change arg to lowercase first and use * STRNCMP() */ for (llen = 0; llen < MLEN; ++llen) { if (!isalpha(arg[llen])) break; lowname[llen] = TOLOWER_ASC(arg[llen]); } for (fidx = sizeof(flagtab) / sizeof(struct flag); --fidx >= 0; ) { len = flagtab[fidx].len; if (len == llen && STRNCMP(lowname, flagtab[fidx].name, len) == 0 && (ends_excmd(arg[len]) || vim_iswhite(arg[len]))) { if (keyword && (flagtab[fidx].val == HL_DISPLAY || flagtab[fidx].val == HL_FOLD || flagtab[fidx].val == HL_EXTEND)) { /* treat "display", "fold" and "extend" as a keyword */ fidx = -1; break; } flags |= flagtab[fidx].val; arg = skipwhite(arg + len); if (flagtab[fidx].val == HL_SYNC_HERE || flagtab[fidx].val == HL_SYNC_THERE) { if (sync_idx == NULL) { EMSG(_("E393: group[t]here not accepted here")); return NULL; } gname_start = arg; arg = skiptowhite(arg); if (gname_start == arg) return NULL; gname = vim_strnsave(gname_start, (int)(arg - gname_start)); if (gname == NULL) return NULL; if (STRCMP(gname, "NONE") == 0) *sync_idx = NONE_IDX; else { syn_id = syn_name2id(gname); for (i = curbuf->b_syn_patterns.ga_len; --i >= 0; ) if (SYN_ITEMS(curbuf)[i].sp_syn.id == syn_id && SYN_ITEMS(curbuf)[i].sp_type == SPTYPE_START) { *sync_idx = i; break; } if (i < 0) { EMSG2(_("E394: Didn't find region item for %s"), gname); vim_free(gname); return NULL; } } vim_free(gname); arg = skipwhite(arg); } #ifdef FEAT_FOLDING else if (flagtab[fidx].val == HL_FOLD && foldmethodIsSyntax(curwin)) { /* Need to update folds later. */ foldUpdateAll(curwin); } #endif break; } } if (fidx >= 0) continue; if (llen == 8 && STRNCMP(lowname, "contains", 8) == 0 && (vim_iswhite(arg[8]) || arg[8] == '=')) { if (cont_list == NULL) { EMSG(_("E395: contains argument not accepted here")); return NULL; } if (get_id_list(&arg, 8, cont_list) == FAIL) return NULL; } else if (llen == 11 && STRNCMP(lowname, "containedin", 11) == 0 && (vim_iswhite(arg[11]) || arg[11] == '=')) { if (cont_in_list == NULL) { EMSG(_("E396: containedin argument not accepted here")); return NULL; } if (get_id_list(&arg, 11, cont_in_list) == FAIL) return NULL; } else if (llen == 9 && STRNCMP(lowname, "nextgroup", 9) == 0 && (vim_iswhite(arg[9]) || arg[9] == '=')) { if (get_id_list(&arg, 9, next_list) == FAIL) return NULL; } else break; } *flagsp = flags; return arg; } /* * Adjustments to syntax item when declared in a ":syn include"'d file. * Set the contained flag, and if the item is not already contained, add it * to the specified top-level group, if any. */ static void syn_incl_toplevel(id, flagsp) int id; int *flagsp; { if ((*flagsp & HL_CONTAINED) || curbuf->b_syn_topgrp == 0) return; *flagsp |= HL_CONTAINED; if (curbuf->b_syn_topgrp >= SYNID_CLUSTER) { /* We have to alloc this, because syn_combine_list() will free it. */ short *grp_list = (short *)alloc((unsigned)(2 * sizeof(short))); int tlg_id = curbuf->b_syn_topgrp - SYNID_CLUSTER; if (grp_list != NULL) { grp_list[0] = id; grp_list[1] = 0; syn_combine_list(&SYN_CLSTR(curbuf)[tlg_id].scl_list, &grp_list, CLUSTER_ADD); } } } /* * Handle ":syntax include [@{group-name}] filename" command. */ /* ARGSUSED */ static void syn_cmd_include(eap, syncing) exarg_T *eap; int syncing; /* not used */ { char_u *arg = eap->arg; int sgl_id = 1; char_u *group_name_end; char_u *rest; char_u *errormsg = NULL; int prev_toplvl_grp; int prev_syn_inc_tag; int source = FALSE; eap->nextcmd = find_nextcmd(arg); if (eap->skip) return; if (arg[0] == '@') { ++arg; rest = get_group_name(arg, &group_name_end); if (rest == NULL) { EMSG((char_u *)_("E397: Filename required")); return; } sgl_id = syn_check_cluster(arg, (int)(group_name_end - arg)); /* separate_nextcmd() and expand_filename() depend on this */ eap->arg = rest; } /* * Everything that's left, up to the next command, should be the * filename to include. */ eap->argt |= (XFILE | NOSPC); separate_nextcmd(eap); if (*eap->arg == '<' || *eap->arg == '$' || mch_isFullName(eap->arg)) { /* For an absolute path, "$VIM/..." or "<sfile>.." we ":source" the * file. Need to expand the file name first. In other cases * ":runtime!" is used. */ source = TRUE; if (expand_filename(eap, syn_cmdlinep, &errormsg) == FAIL) { if (errormsg != NULL) EMSG(errormsg); return; } } /* * Save and restore the existing top-level grouplist id and ":syn * include" tag around the actual inclusion. */ prev_syn_inc_tag = current_syn_inc_tag; current_syn_inc_tag = ++running_syn_inc_tag; prev_toplvl_grp = curbuf->b_syn_topgrp; curbuf->b_syn_topgrp = sgl_id; if (source ? do_source(eap->arg, FALSE, FALSE) == FAIL : cmd_runtime(eap->arg, TRUE) == FAIL) EMSG2(_(e_notopen), eap->arg); curbuf->b_syn_topgrp = prev_toplvl_grp; current_syn_inc_tag = prev_syn_inc_tag; } /* * Handle ":syntax keyword {group-name} [{option}] keyword .." command. */ /* ARGSUSED */ static void syn_cmd_keyword(eap, syncing) exarg_T *eap; int syncing; /* not used */ { char_u *arg = eap->arg; char_u *group_name_end; int syn_id; char_u *rest; char_u *keyword_copy; char_u *p; char_u *first_arg; int round; int flags = 0; short *next_list = NULL; short *cont_in_list = NULL; rest = get_group_name(arg, &group_name_end); if (rest != NULL) { syn_id = syn_check_group(arg, (int)(group_name_end - arg)); /* allocate a buffer, for removing the backslashes in the keyword */ keyword_copy = alloc((unsigned)STRLEN(rest) + 1); if (keyword_copy != NULL) { /* * The options given apply to ALL keywords, so all options must be * found before keywords can be created. * round 1: collect the options. * round 2: create the keywords. */ first_arg = rest; for (round = 1; round <= 2; ++round) { /* * Isolate each keyword and add an entry for it. */ for (rest = first_arg; rest != NULL && !ends_excmd(*rest); rest = skipwhite(rest)) { rest = get_syn_options(rest, &flags, TRUE, NULL, NULL, &cont_in_list, &next_list); if (rest == NULL || ends_excmd(*rest)) break; p = keyword_copy; while (*rest != 0 && !vim_iswhite(*rest)) { if (*rest == '\\' && rest[1] != NUL) ++rest; *p++ = *rest++; } *p = NUL; if (round == 2 && !eap->skip) { for (p = vim_strchr(keyword_copy, '['); ; ) { if (p != NULL) *p = NUL; add_keyword(keyword_copy, syn_id, flags, cont_in_list, next_list); if (p == NULL || p[1] == NUL || p[1] == ']') break; #ifdef FEAT_MBYTE if (has_mbyte) { int l = (*mb_ptr2len_check)(p + 1); mch_memmove(p, p + 1, l); p += l; } else #endif { p[0] = p[1]; ++p; } } } } if (round == 1) syn_incl_toplevel(syn_id, &flags); } vim_free(keyword_copy); } } if (rest != NULL) eap->nextcmd = check_nextcmd(rest); else EMSG2(_(e_invarg2), arg); vim_free(cont_in_list); vim_free(next_list); redraw_curbuf_later(NOT_VALID); syn_stack_free_all(curbuf); /* Need to recompute all syntax. */ } /* * Handle ":syntax match {name} [{options}] {pattern} [{options}]". * * Also ":syntax sync match {name} [[grouphere | groupthere] {group-name}] .." */ static void syn_cmd_match(eap, syncing) exarg_T *eap; int syncing; /* TRUE for ":syntax sync match .. " */ { char_u *arg = eap->arg; char_u *group_name_end; char_u *rest; synpat_T item; /* the item found in the line */ int syn_id; int idx; int flags = 0; int sync_idx = 0; short *cont_list = NULL; short *cont_in_list = NULL; short *next_list = NULL; /* Isolate the group name, check for validity */ rest = get_group_name(arg, &group_name_end); /* Get options before the pattern */ rest = get_syn_options(rest, &flags, FALSE, syncing ? &sync_idx : NULL, &cont_list, &cont_in_list, &next_list); /* get the pattern. */ init_syn_patterns(); vim_memset(&item, 0, sizeof(item)); rest = get_syn_pattern(rest, &item); if (vim_regcomp_had_eol() && !(flags & HL_EXCLUDENL)) flags |= HL_HAS_EOL; /* Get options after the pattern */ rest = get_syn_options(rest, &flags, FALSE, syncing ? &sync_idx : NULL, &cont_list, &cont_in_list, &next_list); if (rest != NULL) /* all arguments are valid */ { /* * Check for trailing command and illegal trailing arguments. */ eap->nextcmd = check_nextcmd(rest); if (!ends_excmd(*rest) || eap->skip) rest = NULL; else if (ga_grow(&curbuf->b_syn_patterns, 1) != FAIL && (syn_id = syn_check_group(arg, (int)(group_name_end - arg))) != 0) { syn_incl_toplevel(syn_id, &flags); /* * Store the pattern in the syn_items list */ idx = curbuf->b_syn_patterns.ga_len; SYN_ITEMS(curbuf)[idx] = item; SYN_ITEMS(curbuf)[idx].sp_syncing = syncing; SYN_ITEMS(curbuf)[idx].sp_type = SPTYPE_MATCH; SYN_ITEMS(curbuf)[idx].sp_syn.id = syn_id; SYN_ITEMS(curbuf)[idx].sp_syn.inc_tag = current_syn_inc_tag; SYN_ITEMS(curbuf)[idx].sp_flags = flags; SYN_ITEMS(curbuf)[idx].sp_sync_idx = sync_idx; SYN_ITEMS(curbuf)[idx].sp_cont_list = cont_list; SYN_ITEMS(curbuf)[idx].sp_syn.cont_in_list = cont_in_list; if (cont_in_list != NULL) curbuf->b_syn_containedin = TRUE; SYN_ITEMS(curbuf)[idx].sp_next_list = next_list; ++curbuf->b_syn_patterns.ga_len; --curbuf->b_syn_patterns.ga_room; /* remember that we found a match for syncing on */ if (flags & (HL_SYNC_HERE|HL_SYNC_THERE)) curbuf->b_syn_sync_flags |= SF_MATCH; #ifdef FEAT_FOLDING if (flags & HL_FOLD) ++curbuf->b_syn_folditems; #endif redraw_curbuf_later(NOT_VALID); syn_stack_free_all(curbuf); /* Need to recompute all syntax. */ return; /* don't free the progs and patterns now */ } } /* * Something failed, free the allocated memory. */ vim_free(item.sp_prog); vim_free(item.sp_pattern); vim_free(cont_list); vim_free(cont_in_list); vim_free(next_list); if (rest == NULL) EMSG2(_(e_invarg2), arg); } /* * Handle ":syntax region {group-name} [matchgroup={group-name}] * start {start} .. [skip {skip}] end {end} .. [{options}]". */ static void syn_cmd_region(eap, syncing) exarg_T *eap; int syncing; /* TRUE for ":syntax sync region .." */ { char_u *arg = eap->arg; char_u *group_name_end; char_u *rest; /* next arg, NULL on error */ char_u *key_end; char_u *key = NULL; char_u *p; int item; #define ITEM_START 0 #define ITEM_SKIP 1 #define ITEM_END 2 #define ITEM_MATCHGROUP 3 struct pat_ptr { synpat_T *pp_synp; /* pointer to syn_pattern */ int pp_matchgroup_id; /* matchgroup ID */ struct pat_ptr *pp_next; /* pointer to next pat_ptr */ } *(pat_ptrs[3]); /* patterns found in the line */ struct pat_ptr *ppp; struct pat_ptr *ppp_next; int pat_count = 0; /* nr of syn_patterns found */ int syn_id; int matchgroup_id = 0; int not_enough = FALSE; /* not enough arguments */ int illegal = FALSE; /* illegal arguments */ int success = FALSE; int idx; int flags = 0; short *cont_list = NULL; short *cont_in_list = NULL; short *next_list = NULL; /* Isolate the group name, check for validity */ rest = get_group_name(arg, &group_name_end); pat_ptrs[0] = NULL; pat_ptrs[1] = NULL; pat_ptrs[2] = NULL; init_syn_patterns(); /* * get the options, patterns and matchgroup. */ while (rest != NULL && !ends_excmd(*rest)) { /* Check for option arguments */ rest = get_syn_options(rest, &flags, FALSE, NULL, &cont_list, &cont_in_list, &next_list); if (rest == NULL || ends_excmd(*rest)) break; /* must be a pattern or matchgroup then */ key_end = rest; while (*key_end && !vim_iswhite(*key_end) && *key_end != '=') ++key_end; vim_free(key); key = vim_strnsave_up(rest, (int)(key_end - rest)); if (key == NULL) /* out of memory */ { rest = NULL; break; } if (STRCMP(key, "MATCHGROUP") == 0) item = ITEM_MATCHGROUP; else if (STRCMP(key, "START") == 0) item = ITEM_START; else if (STRCMP(key, "END") == 0) item = ITEM_END; else if (STRCMP(key, "SKIP") == 0) { if (pat_ptrs[ITEM_SKIP] != NULL) /* one skip pattern allowed */ { illegal = TRUE; break; } item = ITEM_SKIP; } else break; rest = skipwhite(key_end); if (*rest != '=') { rest = NULL; EMSG2(_("E398: Missing '=': %s"), arg); break; } rest = skipwhite(rest + 1); if (*rest == NUL) { not_enough = TRUE; break; } if (item == ITEM_MATCHGROUP) { p = skiptowhite(rest); if ((p - rest == 4 && STRNCMP(rest, "NONE", 4) == 0) || eap->skip) matchgroup_id = 0; else { matchgroup_id = syn_check_group(rest, (int)(p - rest)); if (matchgroup_id == 0) { illegal = TRUE; break; } } rest = skipwhite(p); } else { /* * Allocate room for a syn_pattern, and link it in the list of * syn_patterns for this item, at the start (because the list is * used from end to start). */ ppp = (struct pat_ptr *)alloc((unsigned)sizeof(struct pat_ptr)); if (ppp == NULL) { rest = NULL; break; } ppp->pp_next = pat_ptrs[item]; pat_ptrs[item] = ppp; ppp->pp_synp = (synpat_T *)alloc_clear((unsigned)sizeof(synpat_T)); if (ppp->pp_synp == NULL) { rest = NULL; break; } /* * Get the syntax pattern and the following offset(s). */ /* Enable the appropriate \z specials. */ if (item == ITEM_START) reg_do_extmatch = REX_SET; else if (item == ITEM_SKIP || item == ITEM_END) reg_do_extmatch = REX_USE; rest = get_syn_pattern(rest, ppp->pp_synp); reg_do_extmatch = 0; if (item == ITEM_END && vim_regcomp_had_eol() && !(flags & HL_EXCLUDENL)) ppp->pp_synp->sp_flags |= HL_HAS_EOL; ppp->pp_matchgroup_id = matchgroup_id; ++pat_count; } } vim_free(key); if (illegal || not_enough) rest = NULL; /* * Must have a "start" and "end" pattern. */ if (rest != NULL && (pat_ptrs[ITEM_START] == NULL || pat_ptrs[ITEM_END] == NULL)) { not_enough = TRUE; rest = NULL; } if (rest != NULL) { /* * Check for trailing garbage or command. * If OK, add the item. */ eap->nextcmd = check_nextcmd(rest); if (!ends_excmd(*rest) || eap->skip) rest = NULL; else if (ga_grow(&(curbuf->b_syn_patterns), pat_count) != FAIL && (syn_id = syn_check_group(arg, (int)(group_name_end - arg))) != 0) { syn_incl_toplevel(syn_id, &flags); /* * Store the start/skip/end in the syn_items list */ idx = curbuf->b_syn_patterns.ga_len; for (item = ITEM_START; item <= ITEM_END; ++item) { for (ppp = pat_ptrs[item]; ppp != NULL; ppp = ppp->pp_next) { SYN_ITEMS(curbuf)[idx] = *(ppp->pp_synp); SYN_ITEMS(curbuf)[idx].sp_syncing = syncing; SYN_ITEMS(curbuf)[idx].sp_type = (item == ITEM_START) ? SPTYPE_START : (item == ITEM_SKIP) ? SPTYPE_SKIP : SPTYPE_END; SYN_ITEMS(curbuf)[idx].sp_flags |= flags; SYN_ITEMS(curbuf)[idx].sp_syn.id = syn_id; SYN_ITEMS(curbuf)[idx].sp_syn.inc_tag = current_syn_inc_tag; SYN_ITEMS(curbuf)[idx].sp_syn_match_id = ppp->pp_matchgroup_id; if (item == ITEM_START) { SYN_ITEMS(curbuf)[idx].sp_cont_list = cont_list; SYN_ITEMS(curbuf)[idx].sp_syn.cont_in_list = cont_in_list; if (cont_in_list != NULL) curbuf->b_syn_containedin = TRUE; SYN_ITEMS(curbuf)[idx].sp_next_list = next_list; } ++curbuf->b_syn_patterns.ga_len; --curbuf->b_syn_patterns.ga_room; ++idx; #ifdef FEAT_FOLDING if (flags & HL_FOLD) ++curbuf->b_syn_folditems; #endif } } redraw_curbuf_later(NOT_VALID); syn_stack_free_all(curbuf); /* Need to recompute all syntax. */ success = TRUE; /* don't free the progs and patterns now */ } } /* * Free the allocated memory. */ for (item = ITEM_START; item <= ITEM_END; ++item) for (ppp = pat_ptrs[item]; ppp != NULL; ppp = ppp_next) { if (!success) { vim_free(ppp->pp_synp->sp_prog); vim_free(ppp->pp_synp->sp_pattern); } vim_free(ppp->pp_synp); ppp_next = ppp->pp_next; vim_free(ppp); } if (!success) { vim_free(cont_list); vim_free(cont_in_list); vim_free(next_list); if (not_enough) EMSG2(_("E399: Not enough arguments: syntax region %s"), arg); else if (illegal || rest == NULL) EMSG2(_(e_invarg2), arg); } } /* * A simple syntax group ID comparison function suitable for use in qsort() */ static int #ifdef __BORLANDC__ _RTLENTRYF #endif syn_compare_stub(v1, v2) const void *v1; const void *v2; { const short *s1 = v1; const short *s2 = v2; return (*s1 > *s2 ? 1 : *s1 < *s2 ? -1 : 0); } /* * Combines lists of syntax clusters. * *clstr1 and *clstr2 must both be allocated memory; they will be consumed. */ static void syn_combine_list(clstr1, clstr2, list_op) short **clstr1; short **clstr2; int list_op; { int count1 = 0; int count2 = 0; short *g1; short *g2; short *clstr = NULL; int count; int round; /* * Handle degenerate cases. */ if (*clstr2 == NULL) return; if (*clstr1 == NULL || list_op == CLUSTER_REPLACE) { if (list_op == CLUSTER_REPLACE) vim_free(*clstr1); if (list_op == CLUSTER_REPLACE || list_op == CLUSTER_ADD) *clstr1 = *clstr2; else vim_free(*clstr2); return; } for (g1 = *clstr1; *g1; g1++) ++count1; for (g2 = *clstr2; *g2; g2++) ++count2; /* * For speed purposes, sort both lists. */ qsort(*clstr1, (size_t)count1, sizeof(short), syn_compare_stub); qsort(*clstr2, (size_t)count2, sizeof(short), syn_compare_stub); /* * We proceed in two passes; in round 1, we count the elements to place * in the new list, and in round 2, we allocate and populate the new * list. For speed, we use a mergesort-like method, adding the smaller * of the current elements in each list to the new list. */ for (round = 1; round <= 2; round++) { g1 = *clstr1; g2 = *clstr2; count = 0; /* * First, loop through the lists until one of them is empty. */ while (*g1 && *g2) { /* * We always want to add from the first list. */ if (*g1 < *g2) { if (round == 2) clstr[count] = *g1; count++; g1++; continue; } /* * We only want to add from the second list if we're adding the * lists. */ if (list_op == CLUSTER_ADD) { if (round == 2) clstr[count] = *g2; count++; } if (*g1 == *g2) g1++; g2++; } /* * Now add the leftovers from whichever list didn't get finished * first. As before, we only want to add from the second list if * we're adding the lists. */ for (; *g1; g1++, count++) if (round == 2) clstr[count] = *g1; if (list_op == CLUSTER_ADD) for (; *g2; g2++, count++) if (round == 2) clstr[count] = *g2; if (round == 1) { /* * If the group ended up empty, we don't need to allocate any * space for it. */ if (count == 0) { clstr = NULL; break; } clstr = (short *)alloc((unsigned)((count + 1) * sizeof(short))); if (clstr == NULL) break; clstr[count] = 0; } } /* * Finally, put the new list in place. */ vim_free(*clstr1); vim_free(*clstr2); *clstr1 = clstr; } /* * Lookup a syntax cluster name and return it's ID. * If it is not found, 0 is returned. */ static int syn_scl_name2id(name) char_u *name; { int i; char_u *name_u; /* Avoid using stricmp() too much, it's slow on some systems */ name_u = vim_strsave_up(name); if (name_u == NULL) return 0; for (i = curbuf->b_syn_clusters.ga_len; --i >= 0; ) if (SYN_CLSTR(curbuf)[i].scl_name_u != NULL && STRCMP(name_u, SYN_CLSTR(curbuf)[i].scl_name_u) == 0) break; vim_free(name_u); return (i < 0 ? 0 : i + SYNID_CLUSTER); } /* * Like syn_scl_name2id(), but take a pointer + length argument. */ static int syn_scl_namen2id(linep, len) char_u *linep; int len; { char_u *name; int id = 0; name = vim_strnsave(linep, len); if (name != NULL) { id = syn_scl_name2id(name); vim_free(name); } return id; } /* * Find syntax cluster name in the table and return it's ID. * The argument is a pointer to the name and the length of the name. * If it doesn't exist yet, a new entry is created. * Return 0 for failure. */ static int syn_check_cluster(pp, len) char_u *pp; int len; { int id; char_u *name; name = vim_strnsave(pp, len); if (name == NULL) return 0; id = syn_scl_name2id(name); if (id == 0) /* doesn't exist yet */ id = syn_add_cluster(name); else vim_free(name); return id; } /* * Add new syntax cluster and return it's ID. * "name" must be an allocated string, it will be consumed. * Return 0 for failure. */ static int syn_add_cluster(name) char_u *name; { int len; /* * First call for this growarray: init growing array. */ if (curbuf->b_syn_clusters.ga_data == NULL) { curbuf->b_syn_clusters.ga_itemsize = sizeof(struct syn_cluster); curbuf->b_syn_clusters.ga_growsize = 10; } /* * Make room for at least one other cluster entry. */ if (ga_grow(&curbuf->b_syn_clusters, 1) == FAIL) { vim_free(name); return 0; } len = curbuf->b_syn_clusters.ga_len; vim_memset(&(SYN_CLSTR(curbuf)[len]), 0, sizeof(struct syn_cluster)); SYN_CLSTR(curbuf)[len].scl_name = name; SYN_CLSTR(curbuf)[len].scl_name_u = vim_strsave_up(name); SYN_CLSTR(curbuf)[len].scl_list = NULL; ++curbuf->b_syn_clusters.ga_len; --curbuf->b_syn_clusters.ga_room; return len + SYNID_CLUSTER; } /* * Handle ":syntax cluster {cluster-name} [contains={groupname},..] * [add={groupname},..] [remove={groupname},..]". */ /* ARGSUSED */ static void syn_cmd_cluster(eap, syncing) exarg_T *eap; int syncing; /* not used */ { char_u *arg = eap->arg; char_u *group_name_end; char_u *rest; int scl_id; short *clstr_list; int got_clstr = FALSE; int opt_len; int list_op; eap->nextcmd = find_nextcmd(arg); if (eap->skip) return; rest = get_group_name(arg, &group_name_end); if (rest != NULL) { scl_id = syn_check_cluster(arg, (int)(group_name_end - arg)) - SYNID_CLUSTER; for (;;) { if (STRNICMP(rest, "add", 3) == 0 && (vim_iswhite(rest[3]) || rest[3] == '=')) { opt_len = 3; list_op = CLUSTER_ADD; } else if (STRNICMP(rest, "remove", 6) == 0 && (vim_iswhite(rest[6]) || rest[6] == '=')) { opt_len = 6; list_op = CLUSTER_SUBTRACT; } else if (STRNICMP(rest, "contains", 8) == 0 && (vim_iswhite(rest[8]) || rest[8] == '=')) { opt_len = 8; list_op = CLUSTER_REPLACE; } else break; clstr_list = NULL; if (get_id_list(&rest, opt_len, &clstr_list) == FAIL) { EMSG2(_(e_invarg2), rest); break; } syn_combine_list(&SYN_CLSTR(curbuf)[scl_id].scl_list, &clstr_list, list_op); got_clstr = TRUE; } if (got_clstr) { redraw_curbuf_later(NOT_VALID); syn_stack_free_all(curbuf); /* Need to recompute all syntax. */ } } if (!got_clstr) EMSG(_("E400: No cluster specified")); if (rest == NULL || !ends_excmd(*rest)) EMSG2(_(e_invarg2), arg); } /* * On first call for current buffer: Init growing array. */ static void init_syn_patterns() { curbuf->b_syn_patterns.ga_itemsize = sizeof(synpat_T); curbuf->b_syn_patterns.ga_growsize = 10; } /* * Get one pattern for a ":syntax match" or ":syntax region" command. * Stores the pattern and program in a synpat_T. * Returns a pointer to the next argument, or NULL in case of an error. */ static char_u * get_syn_pattern(arg, ci) char_u *arg; synpat_T *ci; { char_u *end; int *p; int idx; char_u *cpo_save; /* need at least three chars */ if (arg == NULL || arg[1] == NUL || arg[2] == NUL) return NULL; end = skip_regexp(arg + 1, *arg, TRUE, NULL); if (*end != *arg) /* end delimiter not found */ { EMSG2(_("E401: Pattern delimiter not found: %s"), arg); return NULL; } /* store the pattern and compiled regexp program */ if ((ci->sp_pattern = vim_strnsave(arg + 1, (int)(end - arg - 1))) == NULL) return NULL; /* Make 'cpoptions' empty, to avoid the 'l' flag */ cpo_save = p_cpo; p_cpo = (char_u *)""; ci->sp_prog = vim_regcomp(ci->sp_pattern, RE_MAGIC); p_cpo = cpo_save; if (ci->sp_prog == NULL) return NULL; ci->sp_ic = curbuf->b_syn_ic; /* * Check for a match, highlight or region offset. */ ++end; do { for (idx = SPO_COUNT; --idx >= 0; ) if (STRNCMP(end, spo_name_tab[idx], 3) == 0) break; if (idx >= 0) { p = &(ci->sp_offsets[idx]); if (idx != SPO_LC_OFF) switch (end[3]) { case 's': break; case 'b': break; case 'e': idx += SPO_COUNT; break; default: idx = -1; break; } if (idx >= 0) { ci->sp_off_flags |= (1 << idx); if (idx == SPO_LC_OFF) /* lc=99 */ { end += 3; *p = getdigits(&end); /* "lc=" offset automatically sets "ms=" offset */ if (!(ci->sp_off_flags & (1 << SPO_MS_OFF))) { ci->sp_off_flags |= (1 << SPO_MS_OFF); ci->sp_offsets[SPO_MS_OFF] = *p; } } else /* yy=x+99 */ { end += 4; if (*end == '+') { ++end; *p = getdigits(&end); /* positive offset */ } else if (*end == '-') { ++end; *p = -getdigits(&end); /* negative offset */ } } if (*end != ',') break; ++end; } } } while (idx >= 0); if (!ends_excmd(*end) && !vim_iswhite(*end)) { EMSG2(_("E402: Garbage after pattern: %s"), arg); return NULL; } return skipwhite(end); } /* * Handle ":syntax sync .." command. */ /* ARGSUSED */ static void syn_cmd_sync(eap, syncing) exarg_T *eap; int syncing; /* not used */ { char_u *arg_start = eap->arg; char_u *arg_end; char_u *key = NULL; char_u *next_arg; int illegal = FALSE; int finished = FALSE; long n; char_u *cpo_save; if (ends_excmd(*arg_start)) { syn_cmd_list(eap, TRUE); return; } while (!ends_excmd(*arg_start)) { arg_end = skiptowhite(arg_start); next_arg = skipwhite(arg_end); vim_free(key); key = vim_strnsave_up(arg_start, (int)(arg_end - arg_start)); if (STRCMP(key, "CCOMMENT") == 0) { if (!eap->skip) curbuf->b_syn_sync_flags |= SF_CCOMMENT; if (!ends_excmd(*next_arg)) { arg_end = skiptowhite(next_arg); if (!eap->skip) curbuf->b_syn_sync_id = syn_check_group(next_arg, (int)(arg_end - next_arg)); next_arg = skipwhite(arg_end); } else if (!eap->skip) curbuf->b_syn_sync_id = syn_name2id((char_u *)"Comment"); } else if ( STRNCMP(key, "LINES", 5) == 0 || STRNCMP(key, "MINLINES", 8) == 0 || STRNCMP(key, "MAXLINES", 8) == 0 || STRNCMP(key, "LINEBREAKS", 10) == 0) { if (key[4] == 'S') arg_end = key + 6; else if (key[0] == 'L') arg_end = key + 11; else arg_end = key + 9; if (arg_end[-1] != '=' || !isdigit(*arg_end)) { illegal = TRUE; break; } n = getdigits(&arg_end); if (!eap->skip) { if (key[4] == 'B') curbuf->b_syn_sync_linebreaks = n; else if (key[1] == 'A') curbuf->b_syn_sync_maxlines = n; else curbuf->b_syn_sync_minlines = n; } } else if (STRCMP(key, "FROMSTART") == 0) { if (!eap->skip) { curbuf->b_syn_sync_minlines = MAXLNUM; curbuf->b_syn_sync_maxlines = 0; } } else if (STRCMP(key, "LINECONT") == 0) { if (curbuf->b_syn_linecont_pat != NULL) { EMSG(_("E403: syntax sync: line continuations pattern specified twice")); finished = TRUE; break; } arg_end = skip_regexp(next_arg + 1, *next_arg, TRUE, NULL); if (*arg_end != *next_arg) /* end delimiter not found */ { illegal = TRUE; break; } if (!eap->skip) { /* store the pattern and compiled regexp program */ if ((curbuf->b_syn_linecont_pat = vim_strnsave(next_arg + 1, (int)(arg_end - next_arg - 1))) == NULL) { finished = TRUE; break; } curbuf->b_syn_linecont_ic = curbuf->b_syn_ic; /* Make 'cpoptions' empty, to avoid the 'l' flag */ cpo_save = p_cpo; p_cpo = (char_u *)""; curbuf->b_syn_linecont_prog = vim_regcomp(curbuf->b_syn_linecont_pat, RE_MAGIC); p_cpo = cpo_save; if (curbuf->b_syn_linecont_prog == NULL) { vim_free(curbuf->b_syn_linecont_pat); curbuf->b_syn_linecont_pat = NULL; finished = TRUE; break; } } next_arg = skipwhite(arg_end + 1); } else { eap->arg = next_arg; if (STRCMP(key, "MATCH") == 0) syn_cmd_match(eap, TRUE); else if (STRCMP(key, "REGION") == 0) syn_cmd_region(eap, TRUE); else if (STRCMP(key, "CLEAR") == 0) syn_cmd_clear(eap, TRUE); else illegal = TRUE; finished = TRUE; break; } arg_start = next_arg; } vim_free(key); if (illegal) EMSG2(_("E404: Illegal arguments: %s"), arg_start); else if (!finished) { eap->nextcmd = check_nextcmd(arg_start); redraw_curbuf_later(NOT_VALID); syn_stack_free_all(curbuf); /* Need to recompute all syntax. */ } } /* * Convert a line of highlight group names into a list of group ID numbers. * "arg" should point to the "contains" or "nextgroup" keyword. * "arg" is advanced to after the last group name. * Careful: the argument is modified (NULs added). * returns FAIL for some error, OK for success. */ static int get_id_list(arg, keylen, list) char_u **arg; int keylen; /* length of keyword */ short **list; /* where to store the resulting list, if not NULL, the list is silently skipped! */ { char_u *p = NULL; char_u *end; int round; int count; int total_count = 0; short *retval = NULL; char_u *name; regmatch_T regmatch; int id; int i; int failed = FALSE; /* * We parse the list twice: * round == 1: count the number of items, allocate the array. * round == 2: fill the array with the items. * In round 1 new groups may be added, causing the number of items to * grow when a regexp is used. In that case round 1 is done once again. */ for (round = 1; round <= 2; ++round) { /* * skip "contains" */ p = skipwhite(*arg + keylen); if (*p != '=') { EMSG2(_("E405: Missing equal sign: %s"), *arg); break; } p = skipwhite(p + 1); if (ends_excmd(*p)) { EMSG2(_("E406: Empty argument: %s"), *arg); break; } /* * parse the arguments after "contains" */ count = 0; while (!ends_excmd(*p)) { for (end = p; *end && !vim_iswhite(*end) && *end != ','; ++end) ; name = alloc((int)(end - p + 3)); /* leave room for "^$" */ if (name == NULL) { failed = TRUE; break; } STRNCPY(name + 1, p, end - p); name[end - p + 1] = NUL; if ( STRCMP(name + 1, "ALLBUT") == 0 || STRCMP(name + 1, "ALL") == 0 || STRCMP(name + 1, "TOP") == 0 || STRCMP(name + 1, "CONTAINED") == 0) { if (TOUPPER_ASC(**arg) != 'C') { EMSG2(_("E407: %s not allowed here"), name + 1); failed = TRUE; vim_free(name); break; } if (count != 0) { EMSG2(_("E408: %s must be first in contains list"), name + 1); failed = TRUE; vim_free(name); break; } if (name[1] == 'A') id = SYNID_ALLBUT; else if (name[1] == 'T') id = SYNID_TOP; else id = SYNID_CONTAINED; id += current_syn_inc_tag; } else if (name[1] == '@') { id = syn_check_cluster(name + 2, (int)(end - p - 1)); } else { /* * Handle full group name. */ if (vim_strpbrk(name + 1, (char_u *)"\\.*^$~[") == NULL) id = syn_check_group(name + 1, (int)(end - p)); else { /* * Handle match of regexp with group names. */ *name = '^'; STRCAT(name, "$"); regmatch.regprog = vim_regcomp(name, RE_MAGIC); if (regmatch.regprog == NULL) { failed = TRUE; vim_free(name); break; } regmatch.rm_ic = TRUE; id = 0; for (i = highlight_ga.ga_len; --i >= 0; ) { if (vim_regexec(®match, HL_TABLE()[i].sg_name, (colnr_T)0)) { if (round == 2) { /* Got more items than expected; can happen * when adding items that match: * "contains=a.*b,axb". * Go back to first round */ if (count >= total_count) { vim_free(retval); round = 1; } else retval[count] = i + 1; } ++count; id = -1; /* remember that we found one */ } } vim_free(regmatch.regprog); } } vim_free(name); if (id == 0) { EMSG2(_("E409: Unknown group name: %s"), p); failed = TRUE; break; } if (id > 0) { if (round == 2) { /* Got more items than expected, go back to first round */ if (count >= total_count) { vim_free(retval); round = 1; } else retval[count] = id; } ++count; } p = skipwhite(end); if (*p != ',') break; p = skipwhite(p + 1); /* skip comma in between arguments */ } if (failed) break; if (round == 1) { retval = (short *)alloc((unsigned)((count + 1) * sizeof(short))); if (retval == NULL) break; retval[count] = 0; /* zero means end of the list */ total_count = count; } } *arg = p; if (failed || retval == NULL) { vim_free(retval); return FAIL; } if (*list == NULL) *list = retval; else vim_free(retval); /* list already found, don't overwrite it */ return OK; } /* * Make a copy of an ID list. */ static short * copy_id_list(list) short *list; { int len; int count; short *retval; if (list == NULL) return NULL; for (count = 0; list[count]; ++count) ; len = (count + 1) * sizeof(short); retval = (short *)alloc((unsigned)len); if (retval != NULL) mch_memmove(retval, list, (size_t)len); return retval; } /* * Check if syntax group "ssp" is in the ID list "list" of "cur_si". * "cur_si" can be NULL if not checking the "containedin" list. * Used to check if a syntax item is in the "contains" or "nextgroup" list of * the current item. * This function is called very often, keep it fast!! */ static int in_id_list(cur_si, list, ssp, contained) stateitem_T *cur_si; /* current item or NULL */ short *list; /* id list */ struct sp_syn *ssp; /* group id and ":syn include" tag of group */ int contained; /* group id is contained */ { int retval; short *scl_list; short item; short id = ssp->id; static int depth = 0; int r; /* If spp has a "containedin" list and "cur_si" is in it, return TRUE. */ if (cur_si != NULL && ssp->cont_in_list != NULL) { /* Ignore transparent items without a contains argument. Double check * that we don't go back past the first one. */ while ((cur_si->si_flags & HL_TRANS_CONT) && cur_si > (stateitem_T *)(current_state.ga_data)) --cur_si; /* cur_si->si_idx is -1 for keywords, these never contain anything. */ if (cur_si->si_idx >= 0 && in_id_list(NULL, ssp->cont_in_list, &(SYN_ITEMS(syn_buf)[cur_si->si_idx].sp_syn), SYN_ITEMS(syn_buf)[cur_si->si_idx].sp_flags & HL_CONTAINED)) return TRUE; } if (list == NULL) return FALSE; /* * If list is ID_LIST_ALL, we are in a transparent item that isn't * inside anything. Only allow not-contained groups. */ if (list == ID_LIST_ALL) return !contained; /* * If the first item is "ALLBUT", return TRUE if "id" is NOT in the * contains list. We also require that "id" is at the same ":syn include" * level as the list. */ item = *list; if (item >= SYNID_ALLBUT && item < SYNID_CLUSTER) { if (item < SYNID_TOP) { /* ALL or ALLBUT: accept all groups in the same file */ if (item - SYNID_ALLBUT != ssp->inc_tag) return FALSE; } else if (item < SYNID_CONTAINED) { /* TOP: accept all not-contained groups in the same file */ if (item - SYNID_TOP != ssp->inc_tag || contained) return FALSE; } else { /* CONTAINED: accept all contained groups in the same file */ if (item - SYNID_CONTAINED != ssp->inc_tag || !contained) return FALSE; } item = *++list; retval = FALSE; } else retval = TRUE; /* * Return "retval" if id is in the contains list. */ while (item != 0) { if (item == id) return retval; if (item >= SYNID_CLUSTER) { scl_list = SYN_CLSTR(syn_buf)[item - SYNID_CLUSTER].scl_list; /* restrict recursiveness to 30 to avoid an endless loop for a * cluster that includes itself (indirectly) */ if (scl_list != NULL && depth < 30) { ++depth; r = in_id_list(NULL, scl_list, ssp, contained); --depth; if (r) return retval; } } item = *++list; } return !retval; } struct subcommand { char *name; /* subcommand name */ void (*func)__ARGS((exarg_T *, int)); /* function to call */ }; static struct subcommand subcommands[] = { {"case", syn_cmd_case}, {"clear", syn_cmd_clear}, {"cluster", syn_cmd_cluster}, {"enable", syn_cmd_enable}, {"include", syn_cmd_include}, {"keyword", syn_cmd_keyword}, {"list", syn_cmd_list}, {"manual", syn_cmd_manual}, {"match", syn_cmd_match}, {"on", syn_cmd_on}, {"off", syn_cmd_off}, {"region", syn_cmd_region}, {"reset", syn_cmd_reset}, {"sync", syn_cmd_sync}, {"", syn_cmd_list}, {NULL, NULL} }; /* * ":syntax". * This searches the subcommands[] table for the subcommand name, and calls a * syntax_subcommand() function to do the rest. */ void ex_syntax(eap) exarg_T *eap; { char_u *arg = eap->arg; char_u *subcmd_end; char_u *subcmd_name; int i; syn_cmdlinep = eap->cmdlinep; /* isolate subcommand name */ for (subcmd_end = arg; ASCII_ISALPHA(*subcmd_end); ++subcmd_end) ; subcmd_name = vim_strnsave(arg, (int)(subcmd_end - arg)); if (subcmd_name != NULL) { if (eap->skip) /* skip error messages for all subcommands */ ++emsg_skip; for (i = 0; ; ++i) { if (subcommands[i].name == NULL) { EMSG2(_("E410: Invalid :syntax subcommand: %s"), subcmd_name); break; } if (STRCMP(subcmd_name, (char_u *)subcommands[i].name) == 0) { eap->arg = skipwhite(subcmd_end); (subcommands[i].func)(eap, FALSE); break; } } vim_free(subcmd_name); if (eap->skip) --emsg_skip; } } int syntax_present(buf) buf_T *buf; { return (buf->b_syn_patterns.ga_len != 0 || buf->b_syn_clusters.ga_len != 0 || curbuf->b_keywtab != NULL || curbuf->b_keywtab_ic != NULL); } #if defined(FEAT_CMDL_COMPL) || defined(PROTO) static enum { EXP_SUBCMD, /* expand ":syn" sub-commands */ EXP_CASE /* expand ":syn case" arguments */ } expand_what; /* * Handle command line completion for :syntax command. */ void set_context_in_syntax_cmd(xp, arg) expand_T *xp; char_u *arg; { char_u *p; /* Default: expand subcommands */ xp->xp_context = EXPAND_SYNTAX; expand_what = EXP_SUBCMD; xp->xp_pattern = arg; include_link = FALSE; include_default = FALSE; /* (part of) subcommand already typed */ if (*arg != NUL) { p = skiptowhite(arg); if (*p != NUL) /* past first word */ { xp->xp_pattern = skipwhite(p); if (*skiptowhite(xp->xp_pattern) != NUL) xp->xp_context = EXPAND_NOTHING; else if (STRNICMP(arg, "case", p - arg) == 0) expand_what = EXP_CASE; else if ( STRNICMP(arg, "keyword", p - arg) == 0 || STRNICMP(arg, "region", p - arg) == 0 || STRNICMP(arg, "match", p - arg) == 0 || STRNICMP(arg, "list", p - arg) == 0) xp->xp_context = EXPAND_HIGHLIGHT; else xp->xp_context = EXPAND_NOTHING; } } } static char *(case_args[]) = {"match", "ignore", NULL}; /* * Function given to ExpandGeneric() to obtain the list syntax names for * expansion. */ /*ARGSUSED*/ char_u * get_syntax_name(xp, idx) expand_T *xp; int idx; { if (expand_what == EXP_SUBCMD) return (char_u *)subcommands[idx].name; return (char_u *)case_args[idx]; } #endif /* FEAT_CMDL_COMPL */ #if defined(FEAT_EVAL) || defined(FEAT_PRINTER) || defined(PROTO) /* * Function called for expression evaluation: get syntax ID at file position. */ int syn_get_id(lnum, col, trans) long lnum; long col; int trans; /* remove transparancy */ { /* When the position is not after the current position and in the same * line of the same buffer, need to restart parsing. */ if (curwin->w_buffer != syn_buf || lnum != current_lnum || col < (long)current_col) syntax_start(curwin, lnum); (void)get_syntax_attr((colnr_T)col); return (trans ? current_trans_id : current_id); } #endif #if defined(FEAT_FOLDING) || defined(PROTO) /* * Function called to get folding level for line "lnum" in window "wp". */ int syn_get_foldlevel(wp, lnum) win_T *wp; long lnum; { int level = 0; int i; /* Return quickly when there are no fold items at all. */ if (wp->w_buffer->b_syn_folditems != 0) { syntax_start(wp, lnum); for (i = 0; i < current_state.ga_len; ++i) if (CUR_STATE(i).si_flags & HL_FOLD) ++level; } if (level > wp->w_p_fdn) level = wp->w_p_fdn; return level; } #endif #endif /* FEAT_SYN_HL */ /************************************** * Highlighting stuff * **************************************/ /* * The default highlight groups. These are compiled-in for fast startup and * they still work when the runtime files can't be found. * When making changes here, also change runtime/colors/default.vim! */ static char *(highlight_init_both[]) = { #ifdef FEAT_GUI "Cursor guibg=fg guifg=bg", "lCursor guibg=fg guifg=bg", /* should be different, but what? */ #endif "ErrorMsg term=standout ctermbg=DarkRed ctermfg=White guibg=Red guifg=White", "IncSearch term=reverse cterm=reverse gui=reverse", "ModeMsg term=bold cterm=bold gui=bold", "NonText term=bold ctermfg=Blue gui=bold guifg=Blue", "StatusLine term=reverse,bold cterm=reverse,bold gui=reverse,bold", "StatusLineNC term=reverse cterm=reverse gui=reverse", "VertSplit term=reverse cterm=reverse gui=reverse", "Visual term=reverse cterm=reverse gui=reverse guifg=Grey guibg=fg", "VisualNOS term=underline,bold cterm=underline,bold gui=underline,bold", "DiffText term=reverse cterm=bold ctermbg=Red gui=bold guibg=Red", NULL }; static char *(highlight_init_light[]) = { "Directory term=bold ctermfg=DarkBlue guifg=Blue", "LineNr term=underline ctermfg=Brown guifg=Brown", "MoreMsg term=bold ctermfg=DarkGreen gui=bold guifg=SeaGreen", "Normal gui=NONE", "Question term=standout ctermfg=DarkGreen gui=bold guifg=SeaGreen", "Search term=reverse ctermbg=Yellow ctermfg=NONE guibg=Yellow guifg=NONE", "SpecialKey term=bold ctermfg=DarkBlue guifg=Blue", "Title term=bold ctermfg=DarkMagenta gui=bold guifg=Magenta", "WarningMsg term=standout ctermfg=DarkRed guifg=Red", "WildMenu term=standout ctermbg=Yellow ctermfg=Black guibg=Yellow guifg=Black", "Folded term=standout ctermbg=Grey ctermfg=DarkBlue guibg=LightGrey guifg=DarkBlue", "FoldColumn term=standout ctermbg=Grey ctermfg=DarkBlue guibg=Grey guifg=DarkBlue", "DiffAdd term=bold ctermbg=LightBlue guibg=LightBlue", "DiffChange term=bold ctermbg=LightMagenta guibg=LightMagenta", "DiffDelete term=bold ctermfg=Blue ctermbg=LightCyan gui=bold guifg=Blue guibg=LightCyan", NULL }; static char *(highlight_init_dark[]) = { "Directory term=bold ctermfg=LightCyan guifg=Cyan", "LineNr term=underline ctermfg=Yellow guifg=Yellow", "MoreMsg term=bold ctermfg=LightGreen gui=bold guifg=SeaGreen", "Normal gui=NONE", "Question term=standout ctermfg=LightGreen gui=bold guifg=Green", "Search term=reverse ctermbg=Yellow ctermfg=Black guibg=Yellow guifg=Black", "SpecialKey term=bold ctermfg=LightBlue guifg=Cyan", "Title term=bold ctermfg=LightMagenta gui=bold guifg=Magenta", "WarningMsg term=standout ctermfg=LightRed guifg=Red", "WildMenu term=standout ctermbg=Yellow ctermfg=Black guibg=Yellow guifg=Black", "Folded term=standout ctermbg=DarkGrey ctermfg=Cyan guibg=DarkGrey guifg=Cyan", "FoldColumn term=standout ctermbg=DarkGrey ctermfg=Cyan guibg=Grey guifg=Cyan", "DiffAdd term=bold ctermbg=DarkBlue guibg=DarkBlue", "DiffChange term=bold ctermbg=DarkMagenta guibg=DarkMagenta", "DiffDelete term=bold ctermfg=Blue ctermbg=DarkCyan gui=bold guifg=Blue guibg=DarkCyan", NULL }; void init_highlight(both, reset) int both; /* include groups where 'bg' doesn't matter */ int reset; /* clear group first */ { int i; char **pp; static int had_both = FALSE; #ifdef FEAT_EVAL char_u *p; /* * Try finding the color scheme file. Used when a color file was loaded * and 'background' or 't_Co' is changed. */ p = get_var_value((char_u *)"g:colors_name"); if (p != NULL && load_colors(p) == OK) return; #endif /* * Didn't use a color file, use the compiled-in colors. */ if (both) { had_both = TRUE; pp = highlight_init_both; for (i = 0; pp[i] != NULL; ++i) do_highlight((char_u *)pp[i], reset, TRUE); } else if (!had_both) /* Don't do anything before the call with both == TRUE from main(). * Not everything has been setup then, and that call will overrule * everything anyway. */ return; if (*p_bg == 'l') pp = highlight_init_light; else pp = highlight_init_dark; for (i = 0; pp[i] != NULL; ++i) do_highlight((char_u *)pp[i], reset, TRUE); #ifdef FEAT_SYN_HL /* * If syntax highlighting is enabled load the highlighting for it. */ if (get_var_value((char_u *)"g:syntax_on") != NULL) (void)cmd_runtime((char_u *)"syntax/syncolor.vim", TRUE); #endif } /* * Load color file "p". * Return OK for success, FAIL for failure. */ int load_colors(p) char_u *p; { char_u *buf; int retval = FAIL; static int recursive = FALSE; /* When being called recursively, this is probably because setting * 'background' caused the highlighting to be reloaded. This means it is * working, thus we should return OK. */ if (recursive) return OK; recursive = TRUE; buf = alloc((unsigned)(STRLEN(p) + 12)); if (buf != NULL) { sprintf((char *)buf, "colors/%s.vim", p); retval = cmd_runtime(buf, FALSE); vim_free(buf); } recursive = FALSE; return retval; } /* * Handle the ":highlight .." command. * When using ":hi clear" this is called recursively for each group with * "forceit" and "init" both TRUE. */ void do_highlight(line, forceit, init) char_u *line; int forceit; int init; /* TRUE when called for initializing */ { char_u *name_end; char_u *p; char_u *linep; char_u *key_start; char_u *arg_start; char_u *key = NULL, *arg = NULL; long i; int off; int len; int attr; int id; int idx; int dodefault = FALSE; int doclear = FALSE; int dolink = FALSE; int error = FALSE; int color; int is_normal_group = FALSE; /* "Normal" group */ #ifdef FEAT_GUI_X11 int is_menu_group = FALSE; /* "Menu" group */ int is_scrollbar_group = FALSE; /* "Scrollbar" group */ int is_tooltip_group = FALSE; /* "Tooltip" group */ int do_colors = FALSE; /* need to update colors? */ #else # define is_menu_group 0 # define is_tooltip_group 0 #endif /* * If no argument, list current highlighting. */ if (ends_excmd(*line)) { for (i = 1; i <= highlight_ga.ga_len && !got_int; ++i) /* TODO: only call when the group has attributes set */ highlight_list_one((int)i); return; } /* * Isolate the name. */ name_end = skiptowhite(line); linep = skipwhite(name_end); /* * Check for "default" argument. */ if (STRNCMP(line, "default", name_end - line) == 0) { dodefault = TRUE; line = linep; name_end = skiptowhite(line); linep = skipwhite(name_end); } /* * Check for "clear" or "link" argument. */ if (STRNCMP(line, "clear", name_end - line) == 0) doclear = TRUE; if (STRNCMP(line, "link", name_end - line) == 0) dolink = TRUE; /* * ":highlight {group-name}": list highlighting for one group. */ if (!doclear && !dolink && ends_excmd(*linep)) { id = syn_namen2id(line, (int)(name_end - line)); if (id == 0) EMSG2(_("E411: highlight group not found: %s"), line); else highlight_list_one(id); return; } /* * Handle ":highlight link {from} {to}" command. */ if (dolink) { char_u *from_start = linep; char_u *from_end; char_u *to_start; char_u *to_end; int from_id; int to_id; from_end = skiptowhite(from_start); to_start = skipwhite(from_end); to_end = skiptowhite(to_start); if (ends_excmd(*from_start) || ends_excmd(*to_start)) { EMSG2(_("E412: Not enough arguments: \":highlight link %s\""), from_start); return; } if (!ends_excmd(*skipwhite(to_end))) { EMSG2(_("E413: Too many arguments: \":highlight link %s\""), from_start); return; } from_id = syn_check_group(from_start, (int)(from_end - from_start)); if (STRNCMP(to_start, "NONE", 4) == 0) to_id = 0; else to_id = syn_check_group(to_start, (int)(to_end - to_start)); if (from_id > 0 && (!init || HL_TABLE()[from_id - 1].sg_set == 0)) { /* * Don't allow a link when there already is some highlighting * for the group, unless '!' is used */ if (to_id > 0 && !forceit && !init && hl_has_settings(from_id - 1, dodefault)) { if (sourcing_name == NULL && !dodefault) EMSG(_("E414: group has settings, highlight link ignored")); } else { if (!init) HL_TABLE()[from_id - 1].sg_set |= SG_LINK; HL_TABLE()[from_id - 1].sg_link = to_id; redraw_all_later(NOT_VALID); } } /* Only call highlight_changed() once, after sourcing a syntax file */ need_highlight_changed = TRUE; return; } if (doclear) { /* * ":highlight clear [group]" command. */ line = linep; if (ends_excmd(*line)) { #ifdef FEAT_GUI /* First, we do not destroy the old values, but allocate the new * ones and update the display. THEN we destroy the old values. * If we destroy the old values first, then the old values * (such as GuiFont's or GuiFontset's) will still be displayed but * invalid because they were free'd. */ if (gui.in_use) { # ifdef FEAT_BEVAL_TIP gui_init_tooltip_font(); # endif # if defined(FEAT_MENU) && (defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MOTIF)) gui_init_menu_font(); # endif } # if defined(FEAT_GUI_MSWIN) || defined(FEAT_GUI_X11) gui_mch_def_colors(); # endif # ifdef FEAT_GUI_X11 # ifdef FEAT_MENU /* This only needs to be done when there is no Menu highlight * group defined by default, which IS currently the case. */ gui_mch_new_menu_colors(); # endif if (gui.in_use) { gui_new_scrollbar_colors(); # ifdef FEAT_BEVAL gui_mch_new_tooltip_colors(); # endif # ifdef FEAT_MENU gui_mch_new_menu_font(); # endif } # endif /* Ok, we're done allocating the new default graphics items. * The screen should already be refreshed at this point. * It is now Ok to clear out the old data. */ #endif #ifdef FEAT_EVAL do_unlet((char_u *)"colors_name"); #endif restore_cterm_colors(); /* * Clear all default highlight groups and load the defaults. */ for (idx = 0; idx < highlight_ga.ga_len; ++idx) highlight_clear(idx); init_highlight(TRUE, TRUE); #ifdef FEAT_GUI if (gui.in_use) highlight_gui_started(); #endif highlight_changed(); redraw_later_clear(); return; } name_end = skiptowhite(line); linep = skipwhite(name_end); } /* * Find the group name in the table. If it does not exist yet, add it. */ id = syn_check_group(line, (int)(name_end - line)); if (id == 0) /* failed (out of memory) */ return; idx = id - 1; /* index is ID minus one */ /* Return if "default" was used and the group already has settings. */ if (dodefault && hl_has_settings(idx, TRUE)) return; if (STRCMP(HL_TABLE()[idx].sg_name_u, "NORMAL") == 0) is_normal_group = TRUE; #ifdef FEAT_GUI_X11 else if (STRCMP(HL_TABLE()[idx].sg_name_u, "MENU") == 0) is_menu_group = TRUE; else if (STRCMP(HL_TABLE()[idx].sg_name_u, "SCROLLBAR") == 0) is_scrollbar_group = TRUE; else if (STRCMP(HL_TABLE()[idx].sg_name_u, "TOOLTIP") == 0) is_tooltip_group = TRUE; #endif /* Clear the highlighting for ":hi clear {group}" and ":hi clear". */ if (doclear || (forceit && init)) { highlight_clear(idx); if (!doclear) HL_TABLE()[idx].sg_set = 0; } if (!doclear) while (!ends_excmd(*linep)) { key_start = linep; if (*linep == '=') { EMSG2(_("E415: unexpected equal sign: %s"), key_start); error = TRUE; break; } /* * Isolate the key ("term", "ctermfg", "ctermbg", "font", "guifg" or * "guibg"). */ while (*linep && !vim_iswhite(*linep) && *linep != '=') ++linep; vim_free(key); key = vim_strnsave_up(key_start, (int)(linep - key_start)); if (key == NULL) { error = TRUE; break; } linep = skipwhite(linep); if (STRCMP(key, "NONE") == 0) { if (!init || HL_TABLE()[idx].sg_set == 0) { if (!init) HL_TABLE()[idx].sg_set |= SG_TERM+SG_CTERM+SG_GUI; highlight_clear(idx); } continue; } /* * Check for the equal sign. */ if (*linep != '=') { EMSG2(_("E416: missing equal sign: %s"), key_start); error = TRUE; break; } ++linep; /* * Isolate the argument. */ linep = skipwhite(linep); if (*linep == '\'') /* guifg='color name' */ { arg_start = ++linep; linep = vim_strchr(linep, '\''); } else { arg_start = linep; linep = skiptowhite(linep); } if (linep == arg_start) { EMSG2(_("E417: missing argument: %s"), key_start); error = TRUE; break; } vim_free(arg); arg = vim_strnsave(arg_start, (int)(linep - arg_start)); if (arg == NULL) { error = TRUE; break; } if (*linep == '\'') ++linep; /* * Store the argument. */ if ( STRCMP(key, "TERM") == 0 || STRCMP(key, "CTERM") == 0 || STRCMP(key, "GUI") == 0) { attr = 0; off = 0; while (arg[off] != NUL) { for (i = sizeof(hl_attr_table) / sizeof(int); --i >= 0; ) { len = (int)STRLEN(hl_name_table[i]); if (STRNICMP(arg + off, hl_name_table[i], len) == 0) { attr |= hl_attr_table[i]; off += len; break; } } if (i < 0) { EMSG2(_("E418: Illegal value: %s"), arg); error = TRUE; break; } if (arg[off] == ',') /* another one follows */ ++off; } if (error) break; if (*key == 'T') { if (!init || !(HL_TABLE()[idx].sg_set & SG_TERM)) { if (!init) HL_TABLE()[idx].sg_set |= SG_TERM; HL_TABLE()[idx].sg_term = attr; } } else if (*key == 'C') { if (!init || !(HL_TABLE()[idx].sg_set & SG_CTERM)) { if (!init) HL_TABLE()[idx].sg_set |= SG_CTERM; HL_TABLE()[idx].sg_cterm = attr; HL_TABLE()[idx].sg_cterm_bold = FALSE; } } #ifdef FEAT_GUI else { if (!init || !(HL_TABLE()[idx].sg_set & SG_GUI)) { if (!init) HL_TABLE()[idx].sg_set |= SG_GUI; HL_TABLE()[idx].sg_gui = attr; } } #endif } else if (STRCMP(key, "FONT") == 0) { /* in non-GUI fonts are simply ignored */ #ifdef FEAT_GUI if (!gui.shell_created) { /* GUI not started yet, always accept the name. */ vim_free(HL_TABLE()[idx].sg_font_name); HL_TABLE()[idx].sg_font_name = vim_strsave(arg); } else { GuiFont temp_sg_font = HL_TABLE()[idx].sg_font; # ifdef FEAT_XFONTSET GuiFontset temp_sg_fontset = HL_TABLE()[idx].sg_fontset; # endif /* First, save the current font/fontset. * Then try to allocate the font/fontset. * If the allocation fails, HL_TABLE()[idx].sg_font OR * sg_fontset will be set to NOFONT or NOFONTSET respectively. */ HL_TABLE()[idx].sg_font = NOFONT; # ifdef FEAT_XFONTSET HL_TABLE()[idx].sg_fontset = NOFONTSET; # endif hl_do_font(idx, arg, is_normal_group, is_menu_group, is_tooltip_group); # ifdef FEAT_XFONTSET if (HL_TABLE()[idx].sg_fontset != NOFONTSET) { /* New fontset was accepted. Free the old one, if there was * one. */ gui_mch_free_fontset(temp_sg_fontset); vim_free(HL_TABLE()[idx].sg_font_name); HL_TABLE()[idx].sg_font_name = vim_strsave(arg); } else HL_TABLE()[idx].sg_fontset = temp_sg_fontset; # endif if (HL_TABLE()[idx].sg_font != NOFONT) { /* New font was accepted. Free the old one, if there was * one. */ gui_mch_free_font(temp_sg_font); vim_free(HL_TABLE()[idx].sg_font_name); HL_TABLE()[idx].sg_font_name = vim_strsave(arg); } else HL_TABLE()[idx].sg_font = temp_sg_font; } #endif } else if (STRCMP(key, "CTERMFG") == 0 || STRCMP(key, "CTERMBG") == 0) { if (!init || !(HL_TABLE()[idx].sg_set & SG_CTERM)) { if (!init) HL_TABLE()[idx].sg_set |= SG_CTERM; /* When setting the foreground color, and previously the "bold" * flag was set for a light color, reset it now */ if (key[5] == 'F' && HL_TABLE()[idx].sg_cterm_bold) { HL_TABLE()[idx].sg_cterm &= ~HL_BOLD; HL_TABLE()[idx].sg_cterm_bold = FALSE; } if (isdigit(*arg)) color = atoi((char *)arg); else if (STRICMP(arg, "fg") == 0) { if (cterm_normal_fg_color) color = cterm_normal_fg_color - 1; else { EMSG(_("E419: FG color unknown")); error = TRUE; break; } } else if (STRICMP(arg, "bg") == 0) { if (cterm_normal_bg_color > 0) color = cterm_normal_bg_color - 1; else { EMSG(_("E420: BG color unknown")); error = TRUE; break; } } else { static char *(color_names[28]) = { "Black", "DarkBlue", "DarkGreen", "DarkCyan", "DarkRed", "DarkMagenta", "Brown", "DarkYellow", "Gray", "Grey", "LightGray", "LightGrey", "DarkGray", "DarkGrey", "Blue", "LightBlue", "Green", "LightGreen", "Cyan", "LightCyan", "Red", "LightRed", "Magenta", "LightMagenta", "Yellow", "LightYellow", "White", "NONE"}; static int color_numbers_16[28] = {0, 1, 2, 3, 4, 5, 6, 6, 7, 7, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, -1}; /* for xterm with 88 colors... */ static int color_numbers_88[28] = {0, 4, 2, 6, 1, 5, 32, 72, 84, 84, 7, 7, 82, 82, 12, 43, 10, 61, 14, 63, 9, 74, 13, 75, 11, 78, 15, -1}; /* for xterm with 256 colors... */ static int color_numbers_256[28] = {0, 4, 2, 6, 1, 5, 130, 130, 248, 248, 7, 7, 242, 242, 12, 81, 10, 121, 14, 159, 9, 224, 13, 225, 11, 229, 15, -1}; /* for terminals with less than 16 colors... */ static int color_numbers_8[28] = {0, 4, 2, 6, 1, 5, 3, 3, 7, 7, 7, 7, 0+8, 0+8, 4+8, 4+8, 2+8, 2+8, 6+8, 6+8, 1+8, 1+8, 5+8, 5+8, 3+8, 3+8, 7+8, -1}; #if defined(__QNXNTO__) static int *color_numbers_8_qansi = color_numbers_8; /* On qnx, the 8 & 16 color arrays are the same */ if (STRNCMP(T_NAME, "qansi", 5) == 0) color_numbers_8_qansi = color_numbers_16; #endif /* reduce calls to STRICMP a bit, it can be slow */ off = TOUPPER_ASC(*arg); for (i = (sizeof(color_names) / sizeof(char *)); --i >= 0; ) if (off == color_names[i][0] && STRICMP(arg + 1, color_names[i] + 1) == 0) break; if (i < 0) { EMSG2(_("E421: Color name or number not recognized: %s"), key_start); error = TRUE; break; } /* Use the _16 table to check if its a valid color name. */ color = color_numbers_16[i]; if (color >= 0) { if (t_colors == 8) { /* t_Co is 8: use the 8 colors table */ #if defined(__QNXNTO__) color = color_numbers_8_qansi[i]; #else color = color_numbers_8[i]; #endif if (key[5] == 'F') { /* set/reset bold attribute to get light foreground * colors (on some terminals, e.g. "linux") */ if (color & 8) { HL_TABLE()[idx].sg_cterm |= HL_BOLD; HL_TABLE()[idx].sg_cterm_bold = TRUE; } else HL_TABLE()[idx].sg_cterm &= ~HL_BOLD; } color &= 7; /* truncate to 8 colors */ } else if (t_colors == 16 || t_colors == 88 || t_colors == 256) { /* * Guess: if the termcap entry ends in 'm', it is * probably an xterm-like terminal. Use the changed * order for colors. */ if (*T_CAF != NUL) p = T_CAF; else p = T_CSF; if (*p != NUL && *(p + STRLEN(p) - 1) == 'm') switch (t_colors) { case 16: color = color_numbers_8[i]; break; case 88: color = color_numbers_88[i]; break; case 256: color = color_numbers_256[i]; break; } } } } /* Add one to the argument, to avoid zero */ if (key[5] == 'F') { HL_TABLE()[idx].sg_cterm_fg = color + 1; if (is_normal_group) { cterm_normal_fg_color = color + 1; cterm_normal_fg_bold = (HL_TABLE()[idx].sg_cterm & HL_BOLD); #ifdef FEAT_GUI /* Don't do this if the GUI is used. */ if (!gui.in_use && !gui.starting) #endif { must_redraw = CLEAR; if (termcap_active) term_fg_color(color); } } } else { HL_TABLE()[idx].sg_cterm_bg = color + 1; if (is_normal_group) { cterm_normal_bg_color = color + 1; #ifdef FEAT_GUI /* Don't mess with 'background' if the GUI is used. */ if (!gui.in_use && !gui.starting) #endif { must_redraw = CLEAR; if (termcap_active) term_bg_color(color); if (t_colors < 16) i = (color == 0 || color == 4); else i = (color < 7 || color == 8); /* Set the 'background' option if the value is wrong. */ if (i != (*p_bg == 'd')) set_option_value((char_u *)"bg", 0L, i ? (char_u *)"dark" : (char_u *)"light", 0); } } } } } else if (STRCMP(key, "GUIFG") == 0) { #ifdef FEAT_GUI /* in non-GUI guifg colors are simply ignored */ if (!init || !(HL_TABLE()[idx].sg_set & SG_GUI)) { if (!init) HL_TABLE()[idx].sg_set |= SG_GUI; i = color_name2handle(arg); if (i != INVALCOLOR || STRCMP(arg, "NONE") == 0 || !gui.in_use) { HL_TABLE()[idx].sg_gui_fg = i; vim_free(HL_TABLE()[idx].sg_gui_fg_name); if (STRCMP(arg, "NONE")) HL_TABLE()[idx].sg_gui_fg_name = vim_strsave(arg); else HL_TABLE()[idx].sg_gui_fg_name = NULL; # ifdef FEAT_GUI_X11 if (is_menu_group) gui.menu_fg_pixel = i; if (is_scrollbar_group) gui.scroll_fg_pixel = i; # ifdef FEAT_BEVAL if (is_tooltip_group) gui.tooltip_fg_pixel = i; # endif do_colors = TRUE; # endif } } #endif } else if (STRCMP(key, "GUIBG") == 0) { #ifdef FEAT_GUI /* in non-GUI guibg colors are simply ignored */ if (!init || !(HL_TABLE()[idx].sg_set & SG_GUI)) { if (!init) HL_TABLE()[idx].sg_set |= SG_GUI; i = color_name2handle(arg); if (i != INVALCOLOR || STRCMP(arg, "NONE") == 0 || !gui.in_use) { HL_TABLE()[idx].sg_gui_bg = i; vim_free(HL_TABLE()[idx].sg_gui_bg_name); if (STRCMP(arg, "NONE")) HL_TABLE()[idx].sg_gui_bg_name = vim_strsave(arg); else HL_TABLE()[idx].sg_gui_bg_name = NULL; # ifdef FEAT_GUI_X11 if (is_menu_group) gui.menu_bg_pixel = i; if (is_scrollbar_group) gui.scroll_bg_pixel = i; # ifdef FEAT_BEVAL if (is_tooltip_group) gui.tooltip_bg_pixel = i; # endif do_colors = TRUE; # endif } } #endif } else if (STRCMP(key, "START") == 0 || STRCMP(key, "STOP") == 0) { char_u buf[100]; char_u *tname; if (!init) HL_TABLE()[idx].sg_set |= SG_TERM; /* * The "start" and "stop" arguments can be a literal escape * sequence, or a comma seperated list of terminal codes. */ if (STRNCMP(arg, "t_", 2) == 0) { off = 0; buf[0] = 0; while (arg[off] != NUL) { /* Isolate one termcap name */ for (len = 0; arg[off + len] && arg[off + len] != ','; ++len) ; tname = vim_strnsave(arg + off, len); if (tname == NULL) /* out of memory */ { error = TRUE; break; } /* lookup the escape sequence for the item */ p = get_term_code(tname); vim_free(tname); if (p == NULL) /* ignore non-existing things */ p = (char_u *)""; /* Append it to the already found stuff */ if ((int)(STRLEN(buf) + STRLEN(p)) >= 99) { EMSG2(_("E422: terminal code too long: %s"), arg); error = TRUE; break; } STRCAT(buf, p); /* Advance to the next item */ off += len; if (arg[off] == ',') /* another one follows */ ++off; } } else { /* * Copy characters from arg[] to buf[], translating <> codes. */ for (p = arg, off = 0; off < 100 && *p; ) { len = trans_special(&p, buf + off, FALSE); if (len) /* recognized special char */ off += len; else /* copy as normal char */ buf[off++] = *p++; } buf[off] = NUL; } if (error) break; if (STRCMP(buf, "NONE") == 0) /* resetting the value */ p = NULL; else p = vim_strsave(buf); if (key[2] == 'A') { vim_free(HL_TABLE()[idx].sg_start); HL_TABLE()[idx].sg_start = p; } else { vim_free(HL_TABLE()[idx].sg_stop); HL_TABLE()[idx].sg_stop = p; } } else { EMSG2(_("E423: Illegal argument: %s"), key_start); error = TRUE; break; } /* * When highlighting has been given for a group, don't link it. */ if (!init || !(HL_TABLE()[idx].sg_set & SG_LINK)) HL_TABLE()[idx].sg_link = 0; /* * Continue with next argument. */ linep = skipwhite(linep); } /* * If there is an error, and it's a new entry, remove it from the table. */ if (error && idx == highlight_ga.ga_len) syn_unadd_group(); else { if (is_normal_group) { HL_TABLE()[idx].sg_term_attr = 0; HL_TABLE()[idx].sg_cterm_attr = 0; #ifdef FEAT_GUI HL_TABLE()[idx].sg_gui_attr = 0; /* * Need to update all groups, because they might be using "bg" * and/or "fg", which have been changed now. */ if (gui.in_use) highlight_gui_started(); #endif } #ifdef FEAT_GUI_X11 # ifdef FEAT_MENU else if (is_menu_group) { if (gui.in_use && do_colors) gui_mch_new_menu_colors(); } # endif else if (is_scrollbar_group) { if (gui.in_use && do_colors) gui_new_scrollbar_colors(); } # ifdef FEAT_BEVAL else if (is_tooltip_group) { if (gui.in_use && do_colors) gui_mch_new_tooltip_colors(); } # endif #endif else set_hl_attr(idx); redraw_all_later(NOT_VALID); } vim_free(key); vim_free(arg); /* Only call highlight_changed() once, after sourcing a syntax file */ need_highlight_changed = TRUE; } /* * Reset the cterm colors to what they were before Vim was started, if * possible. Otherwise reset them to zero. */ void restore_cterm_colors() { #if defined(MSDOS) || (defined(WIN3264) && !defined(FEAT_GUI_W32)) /* Since t_me has been set, this probably means that the user * wants to use this as default colors. Need to reset default * background/foreground colors. */ mch_set_normal_colors(); #else cterm_normal_fg_color = 0; cterm_normal_fg_bold = 0; cterm_normal_bg_color = 0; #endif } /* * Return TRUE if highlight group "idx" has any settings. * When "check_link" is TRUE also check for an existing link. */ static int hl_has_settings(idx, check_link) int idx; int check_link; { return ( HL_TABLE()[idx].sg_term_attr != 0 || HL_TABLE()[idx].sg_cterm_attr != 0 #ifdef FEAT_GUI || HL_TABLE()[idx].sg_gui_attr != 0 #endif || (check_link && (HL_TABLE()[idx].sg_set & SG_LINK))); } /* * Clear highlighting for one group. */ static void highlight_clear(idx) int idx; { HL_TABLE()[idx].sg_term = 0; vim_free(HL_TABLE()[idx].sg_start); HL_TABLE()[idx].sg_start = NULL; vim_free(HL_TABLE()[idx].sg_stop); HL_TABLE()[idx].sg_stop = NULL; HL_TABLE()[idx].sg_term_attr = 0; HL_TABLE()[idx].sg_cterm = 0; HL_TABLE()[idx].sg_cterm_bold = FALSE; HL_TABLE()[idx].sg_cterm_fg = 0; HL_TABLE()[idx].sg_cterm_bg = 0; HL_TABLE()[idx].sg_cterm_attr = 0; #ifdef FEAT_GUI /* in non-GUI fonts are simply ignored */ HL_TABLE()[idx].sg_gui = 0; HL_TABLE()[idx].sg_gui_fg = INVALCOLOR; vim_free(HL_TABLE()[idx].sg_gui_fg_name); HL_TABLE()[idx].sg_gui_fg_name = NULL; HL_TABLE()[idx].sg_gui_bg = INVALCOLOR; vim_free(HL_TABLE()[idx].sg_gui_bg_name); HL_TABLE()[idx].sg_gui_bg_name = NULL; gui_mch_free_font(HL_TABLE()[idx].sg_font); HL_TABLE()[idx].sg_font = NOFONT; # ifdef FEAT_XFONTSET gui_mch_free_fontset(HL_TABLE()[idx].sg_fontset); HL_TABLE()[idx].sg_fontset = NOFONTSET; # endif vim_free(HL_TABLE()[idx].sg_font_name); HL_TABLE()[idx].sg_font_name = NULL; HL_TABLE()[idx].sg_gui_attr = 0; #endif } #if defined(FEAT_GUI) || defined(PROTO) /* * Set the normal foreground and background colors according to the "Normal" * highlighighting group. For X11 also set "Menu", "Scrollbar", and * "Tooltip" colors. */ void set_normal_colors() { if (set_group_colors((char_u *)"Normal", &gui.norm_pixel, &gui.back_pixel, FALSE, TRUE, FALSE)) { gui_mch_new_colors(); must_redraw = CLEAR; } #ifdef FEAT_GUI_X11 if (set_group_colors((char_u *)"Menu", &gui.menu_fg_pixel, &gui.menu_bg_pixel, TRUE, FALSE, FALSE)) { # ifdef FEAT_MENU gui_mch_new_menu_colors(); # endif must_redraw = CLEAR; } # ifdef FEAT_BEVAL if (set_group_colors((char_u *)"Tooltip", &gui.tooltip_fg_pixel, &gui.tooltip_bg_pixel, FALSE, FALSE, TRUE)) { # ifdef FEAT_TOOLBAR gui_mch_new_tooltip_colors(); # endif must_redraw = CLEAR; } #endif if (set_group_colors((char_u *)"Scrollbar", &gui.scroll_fg_pixel, &gui.scroll_bg_pixel, FALSE, FALSE, FALSE)) { gui_new_scrollbar_colors(); must_redraw = CLEAR; } #endif } /* * Set the colors for "Normal", "Menu", "Tooltip" or "Scrollbar". */ static int set_group_colors(name, fgp, bgp, do_menu, use_norm, do_tooltip) char_u *name; guicolor_T *fgp; guicolor_T *bgp; int do_menu; int use_norm; int do_tooltip; { int idx; idx = syn_name2id(name) - 1; if (idx >= 0) { gui_do_one_color(idx, do_menu, do_tooltip); if (HL_TABLE()[idx].sg_gui_fg != INVALCOLOR) *fgp = HL_TABLE()[idx].sg_gui_fg; else if (use_norm) *fgp = gui.def_norm_pixel; if (HL_TABLE()[idx].sg_gui_bg != INVALCOLOR) *bgp = HL_TABLE()[idx].sg_gui_bg; else if (use_norm) *bgp = gui.def_back_pixel; return TRUE; } return FALSE; } /* * Get the font of the "Normal" group. * Returns "" when it's not found or not set. */ char_u * hl_get_font_name() { int id; char_u *s; id = syn_name2id((char_u *)"Normal"); if (id > 0) { s = HL_TABLE()[id - 1].sg_font_name; if (s != NULL) return s; } return (char_u *)""; } /* * Set font for "Normal" group. Called by gui_mch_init_font() when a font has * actually chosen to be used. */ void hl_set_font_name(font_name) char_u *font_name; { int id; id = syn_name2id((char_u *)"Normal"); if (id > 0) { vim_free(HL_TABLE()[id - 1].sg_font_name); HL_TABLE()[id - 1].sg_font_name = vim_strsave(font_name); } } /* * Set background color for "Normal" group. Called by gui_set_bg_color() * when the color is known. */ void hl_set_bg_color_name(name) char_u *name; /* must have been allocated */ { int id; if (name != NULL) { id = syn_name2id((char_u *)"Normal"); if (id > 0) { vim_free(HL_TABLE()[id - 1].sg_gui_bg_name); HL_TABLE()[id - 1].sg_gui_bg_name = name; } } } /* * Set foreground color for "Normal" group. Called by gui_set_fg_color() * when the color is known. */ void hl_set_fg_color_name(name) char_u *name; /* must have been allocated */ { int id; if (name != NULL) { id = syn_name2id((char_u *)"Normal"); if (id > 0) { vim_free(HL_TABLE()[id - 1].sg_gui_fg_name); HL_TABLE()[id - 1].sg_gui_fg_name = name; } } } /* * Return the handle for a color name. * Returns INVALCOLOR when failed. */ static guicolor_T color_name2handle(name) char_u *name; { if (STRCMP(name, "NONE") == 0) return INVALCOLOR; if (STRICMP(name, "fg") == 0 || STRICMP(name, "foreground") == 0) return gui.norm_pixel; if (STRICMP(name, "bg") == 0 || STRICMP(name, "background") == 0) return gui.back_pixel; return gui_get_color(name); } /* * Return the handle for a font name. * Returns NOFONT when failed. */ static GuiFont font_name2handle(name) char_u *name; { if (STRCMP(name, "NONE") == 0) return NOFONT; return gui_mch_get_font(name, TRUE); } # ifdef FEAT_XFONTSET /* * Return the handle for a fontset name. * Returns NOFONTSET when failed. */ static GuiFontset fontset_name2handle(name, fixed_width) char_u *name; int fixed_width; { if (STRCMP(name, "NONE") == 0) return NOFONTSET; return gui_mch_get_fontset(name, TRUE, fixed_width); } # endif /* * Get the font or fontset for one highlight group. */ /*ARGSUSED*/ static void hl_do_font(idx, arg, do_normal, do_menu, do_tooltip) int idx; char_u *arg; int do_normal; /* set normal font */ int do_menu; /* set menu font */ int do_tooltip; /* set tooltip font */ { # ifdef FEAT_XFONTSET /* If 'guifontset' is not empty, first try using the name as a * fontset. If that doesn't work, use it as a font name. */ if (*p_guifontset != NUL # ifdef FONTSET_ALWAYS || do_menu # endif # ifdef FEAT_BEVAL_TIP /* In Athena & Motif, the Tooltip highlight group is always a fontset */ || do_tooltip # endif ) HL_TABLE()[idx].sg_fontset = fontset_name2handle(arg, 0 # ifdef FONTSET_ALWAYS || do_menu # endif # ifdef FEAT_BEVAL_TIP || do_tooltip # endif ); if (HL_TABLE()[idx].sg_fontset != NOFONTSET) { /* If it worked and it's the Normal group, use it as the * normal fontset. Same for the Menu group. */ if (do_normal) gui_init_font(arg, TRUE); # if (defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_ATHENA)) && defined(FEAT_MENU) if (do_menu) { # ifdef FONTSET_ALWAYS gui.menu_fontset = HL_TABLE()[idx].sg_fontset; # else /* YIKES! This is a bug waiting to crash the program */ gui.menu_font = HL_TABLE()[idx].sg_fontset; # endif gui_mch_new_menu_font(); } # ifdef FEAT_BEVAL if (do_tooltip) { /* The Athena widget set cannot currently handle switching between * displaying a single font and a fontset. * If the XtNinternational resource is set to True at widget * creation, then a fontset is always used, othwise an * XFontStruct is used. */ gui.tooltip_fontset = (XFontSet)HL_TABLE()[idx].sg_fontset; gui_mch_new_tooltip_font(); } # endif # endif } else # endif { HL_TABLE()[idx].sg_font = font_name2handle(arg); /* If it worked and it's the Normal group, use it as the * normal font. Same for the Menu group. */ if (HL_TABLE()[idx].sg_font != NOFONT) { if (do_normal) gui_init_font(arg, FALSE); #ifndef FONTSET_ALWAYS # if (defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_ATHENA)) && defined(FEAT_MENU) if (do_menu) { gui.menu_font = HL_TABLE()[idx].sg_font; gui_mch_new_menu_font(); } # endif #endif } } } #endif /* FEAT_GUI */ /* * Table with the specifications for an attribute number. * Note that this table is used by ALL buffers. This is required because the * GUI can redraw at any time for any buffer. */ garray_T term_attr_table = {0, 0, 0, 0, NULL}; #define TERM_ATTR_ENTRY(idx) ((attrentry_T *)term_attr_table.ga_data)[idx] garray_T cterm_attr_table = {0, 0, 0, 0, NULL}; #define CTERM_ATTR_ENTRY(idx) ((attrentry_T *)cterm_attr_table.ga_data)[idx] #ifdef FEAT_GUI garray_T gui_attr_table = {0, 0, 0, 0, NULL}; #define GUI_ATTR_ENTRY(idx) ((attrentry_T *)gui_attr_table.ga_data)[idx] #endif /* * Return the attr number for a set of colors and font. * Add a new entry to the term_attr_table, cterm_attr_table or gui_attr_table * if the combination is new. * Return 0 for error (no more room). */ static int get_attr_entry(table, aep) garray_T *table; attrentry_T *aep; { int i; attrentry_T *gap; static int recursive = FALSE; /* * Init the table, in case it wasn't done yet. */ table->ga_itemsize = sizeof(attrentry_T); table->ga_growsize = 7; /* * Try to find an entry with the same specifications. */ for (i = 0; i < table->ga_len; ++i) { gap = &(((attrentry_T *)table->ga_data)[i]); if ( aep->ae_attr == gap->ae_attr && ( #ifdef FEAT_GUI (table == &gui_attr_table && (aep->ae_u.gui.fg_color == gap->ae_u.gui.fg_color && aep->ae_u.gui.bg_color == gap->ae_u.gui.bg_color && aep->ae_u.gui.font == gap->ae_u.gui.font # ifdef FEAT_XFONTSET && aep->ae_u.gui.fontset == gap->ae_u.gui.fontset # endif )) || #endif (table == &term_attr_table && (aep->ae_u.term.start == NULL) == (gap->ae_u.term.start == NULL) && (aep->ae_u.term.start == NULL || STRCMP(aep->ae_u.term.start, gap->ae_u.term.start) == 0) && (aep->ae_u.term.stop == NULL) == (gap->ae_u.term.stop == NULL) && (aep->ae_u.term.stop == NULL || STRCMP(aep->ae_u.term.stop, gap->ae_u.term.stop) == 0)) || (table == &cterm_attr_table && aep->ae_u.cterm.fg_color == gap->ae_u.cterm.fg_color && aep->ae_u.cterm.bg_color == gap->ae_u.cterm.bg_color) )) return i + ATTR_OFF; } if (table->ga_len + ATTR_OFF == 256) { /* * Running out of attribute entries! remove all attributes, and * compute new ones for all groups. * When called recursively, we are really out of numbers. */ if (recursive) { EMSG(_("E424: Too many different highlighting attributes in use")); return 0; } recursive = TRUE; #ifdef FEAT_GUI ga_clear(&gui_attr_table); #endif ga_clear(&term_attr_table); ga_clear(&cterm_attr_table); must_redraw = CLEAR; for (i = 0; i < highlight_ga.ga_len; ++i) set_hl_attr(i); recursive = FALSE; } /* * This is a new combination of colors and font, add an entry. */ if (ga_grow(table, 1) == FAIL) return 0; gap = &(((attrentry_T *)table->ga_data)[table->ga_len]); vim_memset(gap, 0, sizeof(attrentry_T)); gap->ae_attr = aep->ae_attr; #ifdef FEAT_GUI if (table == &gui_attr_table) { gap->ae_u.gui.fg_color = aep->ae_u.gui.fg_color; gap->ae_u.gui.bg_color = aep->ae_u.gui.bg_color; gap->ae_u.gui.font = aep->ae_u.gui.font; # ifdef FEAT_XFONTSET gap->ae_u.gui.fontset = aep->ae_u.gui.fontset; # endif } #endif if (table == &term_attr_table) { if (aep->ae_u.term.start == NULL) gap->ae_u.term.start = NULL; else gap->ae_u.term.start = vim_strsave(aep->ae_u.term.start); if (aep->ae_u.term.stop == NULL) gap->ae_u.term.stop = NULL; else gap->ae_u.term.stop = vim_strsave(aep->ae_u.term.stop); } else if (table == &cterm_attr_table) { gap->ae_u.cterm.fg_color = aep->ae_u.cterm.fg_color; gap->ae_u.cterm.bg_color = aep->ae_u.cterm.bg_color; } ++table->ga_len; --table->ga_room; return (table->ga_len - 1 + ATTR_OFF); } #ifdef FEAT_GUI attrentry_T * syn_gui_attr2entry(attr) int attr; { attr -= ATTR_OFF; if (attr >= gui_attr_table.ga_len) /* did ":syntax clear" */ return NULL; return &(GUI_ATTR_ENTRY(attr)); } #endif /* FEAT_GUI */ attrentry_T * syn_term_attr2entry(attr) int attr; { attr -= ATTR_OFF; if (attr >= term_attr_table.ga_len) /* did ":syntax clear" */ return NULL; return &(TERM_ATTR_ENTRY(attr)); } attrentry_T * syn_cterm_attr2entry(attr) int attr; { attr -= ATTR_OFF; if (attr >= cterm_attr_table.ga_len) /* did ":syntax clear" */ return NULL; return &(CTERM_ATTR_ENTRY(attr)); } #define LIST_ATTR 1 #define LIST_STRING 2 #define LIST_INT 3 static void highlight_list_one(id) int id; { struct hl_group *sgp; int didh = FALSE; sgp = &HL_TABLE()[id - 1]; /* index is ID minus one */ didh = highlight_list_arg(id, didh, LIST_ATTR, sgp->sg_term, NULL, "term"); didh = highlight_list_arg(id, didh, LIST_STRING, 0, sgp->sg_start, "start"); didh = highlight_list_arg(id, didh, LIST_STRING, 0, sgp->sg_stop, "stop"); didh = highlight_list_arg(id, didh, LIST_ATTR, sgp->sg_cterm, NULL, "cterm"); didh = highlight_list_arg(id, didh, LIST_INT, sgp->sg_cterm_fg, NULL, "ctermfg"); didh = highlight_list_arg(id, didh, LIST_INT, sgp->sg_cterm_bg, NULL, "ctermbg"); #ifdef FEAT_GUI didh = highlight_list_arg(id, didh, LIST_ATTR, sgp->sg_gui, NULL, "gui"); didh = highlight_list_arg(id, didh, LIST_STRING, 0, sgp->sg_gui_fg_name, "guifg"); didh = highlight_list_arg(id, didh, LIST_STRING, 0, sgp->sg_gui_bg_name, "guibg"); didh = highlight_list_arg(id, didh, LIST_STRING, 0, sgp->sg_font_name, "font"); #endif if (sgp->sg_link) { (void)syn_list_header(didh, 9999, id); msg_puts_attr((char_u *)"links to", hl_attr(HLF_D)); msg_putchar(' '); msg_outtrans(HL_TABLE()[HL_TABLE()[id - 1].sg_link - 1].sg_name); } } static int highlight_list_arg(id, didh, type, iarg, sarg, name) int id; int didh; int type; int iarg; char_u *sarg; char *name; { char_u buf[100]; char_u *ts; int i; if (type == LIST_STRING ? (sarg != NULL) : (iarg != 0)) { ts = buf; if (type == LIST_INT) sprintf((char *)buf, "%d", iarg - 1); else if (type == LIST_STRING) ts = sarg; else /* type == LIST_ATTR */ { buf[0] = NUL; for (i = 0; hl_attr_table[i] != 0; ++i) { if (iarg & hl_attr_table[i]) { if (buf[0] != NUL) STRCAT(buf, ","); STRCAT(buf, hl_name_table[i]); iarg &= ~hl_attr_table[i]; /* don't want "inverse" */ } } } (void)syn_list_header(didh, (int)(vim_strsize(ts) + STRLEN(name) + 1), id); didh = TRUE; MSG_PUTS_ATTR(name, hl_attr(HLF_D)); MSG_PUTS_ATTR("=", hl_attr(HLF_D)); msg_outtrans(ts); } return didh; } #if (((defined(FEAT_EVAL) || defined(FEAT_PRINTER))) && defined(FEAT_SYN_HL)) || defined(PROTO) /* * Return "1" if highlight group "id" has attribute "flag". * Return NULL otherwise. */ char_u * highlight_has_attr(id, flag, modec) int id; int flag; int modec; /* 'g' for GUI, 'c' for cterm, 't' for term */ { int attr; if (id <= 0 || id > highlight_ga.ga_len) return NULL; #ifdef FEAT_GUI if (modec == 'g') attr = HL_TABLE()[id - 1].sg_gui; else #endif if (modec == 'c') attr = HL_TABLE()[id - 1].sg_cterm; else attr = HL_TABLE()[id - 1].sg_term; if (attr & flag) return (char_u *)"1"; return NULL; } #endif #if (defined(FEAT_SYN_HL) && defined(FEAT_EVAL)) || defined(PROTO) /* * Return color name of highlight group "id". */ char_u * highlight_color(id, what, modec) int id; char_u *what; /* "fg", "bg", "fg#" or "bg#" */ int modec; /* 'g' for GUI, 'c' for cterm, 't' for term */ { static char_u name[20]; int n; int fg; if (id <= 0 || id > highlight_ga.ga_len) return NULL; if (TOLOWER_ASC(what[0]) == 'f') fg = TRUE; else fg = FALSE; #ifdef FEAT_GUI if (modec == 'g') { /* return #RRGGBB form (only possible when GUI is running) */ if (gui.in_use && what[1] && what[2] == '#') { guicolor_T color; long_u rgb; static char_u buf[10]; if (fg) color = HL_TABLE()[id - 1].sg_gui_fg; else color = HL_TABLE()[id - 1].sg_gui_bg; if (color == INVALCOLOR) return NULL; rgb = gui_mch_get_rgb(color); sprintf((char *)buf, "#%02x%02x%02x", (unsigned)(rgb >> 16), (unsigned)(rgb >> 8) & 255, (unsigned)rgb & 255); return buf; } if (fg) return (HL_TABLE()[id - 1].sg_gui_fg_name); return (HL_TABLE()[id - 1].sg_gui_bg_name); } #endif if (modec == 'c') { if (fg) n = HL_TABLE()[id - 1].sg_cterm_fg - 1; else n = HL_TABLE()[id - 1].sg_cterm_bg - 1; sprintf((char *)name, "%d", n); return name; } /* term doesn't have color */ return NULL; } #endif #if (defined(FEAT_SYN_HL) && defined(FEAT_GUI) && defined(FEAT_PRINTER)) \ || defined(PROTO) /* * Return color name of highlight group "id" as RGB value. */ long_u highlight_gui_color_rgb(id, fg) int id; int fg; /* TRUE = fg, FALSE = bg */ { guicolor_T color; if (id <= 0 || id > highlight_ga.ga_len) return 0L; if (fg) color = HL_TABLE()[id - 1].sg_gui_fg; else color = HL_TABLE()[id - 1].sg_gui_bg; if (color == INVALCOLOR) return 0L; return gui_mch_get_rgb(color); } #endif /* * Output the syntax list header. * Return TRUE when started a new line. */ static int syn_list_header(did_header, outlen, id) int did_header; /* did header already */ int outlen; /* length of string that comes */ int id; /* highlight group id */ { int endcol = 19; int newline = TRUE; if (!did_header) { msg_putchar('\n'); msg_outtrans(HL_TABLE()[id - 1].sg_name); endcol = 15; } else if (msg_col + outlen + 1 >= Columns) msg_putchar('\n'); else { if (msg_col >= endcol) /* wrap around is like starting a new line */ newline = FALSE; } if (msg_col >= endcol) /* output at least one space */ endcol = msg_col + 1; if (Columns <= endcol) /* avoid hang for tiny window */ endcol = Columns - 1; msg_advance(endcol); /* Show "xxx" with the attributes. */ if (!did_header) { msg_puts_attr((char_u *)"xxx", syn_id2attr(id)); msg_putchar(' '); } return newline; } /* * Set the attribute numbers for a highlight group. * Called after one of the attributes has changed. */ static void set_hl_attr(idx) int idx; /* index in array */ { attrentry_T at_en; /* The "Normal" group doesn't need an attribute number */ if (STRCMP(HL_TABLE()[idx].sg_name_u, "NORMAL") == 0) return; #ifdef FEAT_GUI /* * For the GUI mode: If there are other than "normal" highlighting * attributes, need to allocate an attr number. */ if (HL_TABLE()[idx].sg_gui_fg == INVALCOLOR && HL_TABLE()[idx].sg_gui_bg == INVALCOLOR && HL_TABLE()[idx].sg_font == NOFONT # ifdef FEAT_XFONTSET && HL_TABLE()[idx].sg_fontset == NOFONTSET # endif ) { HL_TABLE()[idx].sg_gui_attr = HL_TABLE()[idx].sg_gui; } else { at_en.ae_attr = HL_TABLE()[idx].sg_gui; at_en.ae_u.gui.fg_color = HL_TABLE()[idx].sg_gui_fg; at_en.ae_u.gui.bg_color = HL_TABLE()[idx].sg_gui_bg; at_en.ae_u.gui.font = HL_TABLE()[idx].sg_font; # ifdef FEAT_XFONTSET at_en.ae_u.gui.fontset = HL_TABLE()[idx].sg_fontset; # endif HL_TABLE()[idx].sg_gui_attr = get_attr_entry(&gui_attr_table, &at_en); } #endif /* * For the term mode: If there are other than "normal" highlighting * attributes, need to allocate an attr number. */ if (HL_TABLE()[idx].sg_start == NULL && HL_TABLE()[idx].sg_stop == NULL) HL_TABLE()[idx].sg_term_attr = HL_TABLE()[idx].sg_term; else { at_en.ae_attr = HL_TABLE()[idx].sg_term; at_en.ae_u.term.start = HL_TABLE()[idx].sg_start; at_en.ae_u.term.stop = HL_TABLE()[idx].sg_stop; HL_TABLE()[idx].sg_term_attr = get_attr_entry(&term_attr_table, &at_en); } /* * For the color term mode: If there are other than "normal" * highlighting attributes, need to allocate an attr number. */ if (HL_TABLE()[idx].sg_cterm_fg == 0 && HL_TABLE()[idx].sg_cterm_bg == 0) HL_TABLE()[idx].sg_cterm_attr = HL_TABLE()[idx].sg_cterm; else { at_en.ae_attr = HL_TABLE()[idx].sg_cterm; at_en.ae_u.cterm.fg_color = HL_TABLE()[idx].sg_cterm_fg; at_en.ae_u.cterm.bg_color = HL_TABLE()[idx].sg_cterm_bg; HL_TABLE()[idx].sg_cterm_attr = get_attr_entry(&cterm_attr_table, &at_en); } } /* * Lookup a highlight group name and return it's ID. * If it is not found, 0 is returned. */ int syn_name2id(name) char_u *name; { int i; char_u name_u[200]; /* Avoid using stricmp() too much, it's slow on some systems */ /* Avoid alloc()/free(), these are slow too. ID names over 200 chars * don't deserve to be found! */ STRNCPY(name_u, name, 199); name_u[199] = NUL; vim_strup(name_u); for (i = highlight_ga.ga_len; --i >= 0; ) if (HL_TABLE()[i].sg_name_u != NULL && STRCMP(name_u, HL_TABLE()[i].sg_name_u) == 0) break; return i + 1; } #if defined(FEAT_EVAL) || defined(PROTO) /* * Return TRUE if highlight group "name" exists. */ int highlight_exists(name) char_u *name; { return (syn_name2id(name) > 0); } #endif /* * Like syn_name2id(), but take a pointer + length argument. */ int syn_namen2id(linep, len) char_u *linep; int len; { char_u *name; int id = 0; name = vim_strnsave(linep, len); if (name != NULL) { id = syn_name2id(name); vim_free(name); } return id; } /* * Find highlight group name in the table and return it's ID. * The argument is a pointer to the name and the length of the name. * If it doesn't exist yet, a new entry is created. * Return 0 for failure. */ int syn_check_group(pp, len) char_u *pp; int len; { int id; char_u *name; name = vim_strnsave(pp, len); if (name == NULL) return 0; id = syn_name2id(name); if (id == 0) /* doesn't exist yet */ id = syn_add_group(name); else vim_free(name); return id; } /* * Add new highlight group and return it's ID. * "name" must be an allocated string, it will be consumed. * Return 0 for failure. */ static int syn_add_group(name) char_u *name; { /* TODO: check that the name is ASCII letters, digits and underscore. */ /* * First call for this growarray: init growing array. */ if (highlight_ga.ga_data == NULL) { highlight_ga.ga_itemsize = sizeof(struct hl_group); highlight_ga.ga_growsize = 10; } /* * Make room for at least one other syntax_highlight entry. */ if (ga_grow(&highlight_ga, 1) == FAIL) { vim_free(name); return 0; } vim_memset(&(HL_TABLE()[highlight_ga.ga_len]), 0, sizeof(struct hl_group)); HL_TABLE()[highlight_ga.ga_len].sg_name = name; HL_TABLE()[highlight_ga.ga_len].sg_name_u = vim_strsave_up(name); #ifdef FEAT_GUI HL_TABLE()[highlight_ga.ga_len].sg_gui_bg = INVALCOLOR; HL_TABLE()[highlight_ga.ga_len].sg_gui_fg = INVALCOLOR; #endif ++highlight_ga.ga_len; --highlight_ga.ga_room; return highlight_ga.ga_len; /* ID is index plus one */ } /* * When, just after calling syn_add_group(), an error is discovered, this * function deletes the new name. */ static void syn_unadd_group() { --highlight_ga.ga_len; ++highlight_ga.ga_room; vim_free(HL_TABLE()[highlight_ga.ga_len].sg_name); vim_free(HL_TABLE()[highlight_ga.ga_len].sg_name_u); } /* * Translate a group ID to highlight attributes. */ int syn_id2attr(hl_id) int hl_id; { int attr; struct hl_group *sgp; hl_id = syn_get_final_id(hl_id); sgp = &HL_TABLE()[hl_id - 1]; /* index is ID minus one */ #ifdef FEAT_GUI /* * Only use GUI attr when the GUI is being used. */ if (gui.in_use) attr = sgp->sg_gui_attr; else #endif if (t_colors > 1) attr = sgp->sg_cterm_attr; else attr = sgp->sg_term_attr; return attr; } #ifdef FEAT_GUI /* * Get the GUI colors and attributes for a group ID. * NOTE: the colors will be INVALCOLOR when not set, the color otherwise. */ int syn_id2colors(hl_id, fgp, bgp) int hl_id; guicolor_T *fgp; guicolor_T *bgp; { struct hl_group *sgp; hl_id = syn_get_final_id(hl_id); sgp = &HL_TABLE()[hl_id - 1]; /* index is ID minus one */ *fgp = sgp->sg_gui_fg; *bgp = sgp->sg_gui_bg; return sgp->sg_gui; } #endif /* * Translate a group ID to the final group ID (following links). */ int syn_get_final_id(hl_id) int hl_id; { int count; struct hl_group *sgp; if (hl_id > highlight_ga.ga_len || hl_id < 1) return 0; /* Can be called from eval!! */ /* * Follow links until there is no more. * Look out for loops! Break after 100 links. */ for (count = 100; --count >= 0; ) { sgp = &HL_TABLE()[hl_id - 1]; /* index is ID minus one */ if (sgp->sg_link == 0 || sgp->sg_link > highlight_ga.ga_len) break; hl_id = sgp->sg_link; } return hl_id; } #ifdef FEAT_GUI /* * Call this function just after the GUI has started. * It finds the font and color handles for the highlighting groups. */ void highlight_gui_started() { int idx; /* First get the colors from the "Normal" and "Menu" group, if set */ set_normal_colors(); for (idx = 0; idx < highlight_ga.ga_len; ++idx) gui_do_one_color(idx, FALSE, FALSE); highlight_changed(); } static void gui_do_one_color(idx, do_menu, do_tooltip) int idx; int do_menu; /* TRUE: might set the menu font */ int do_tooltip; /* TRUE: might set the tooltip font */ { int didit = FALSE; if (HL_TABLE()[idx].sg_font_name != NULL) { hl_do_font(idx, HL_TABLE()[idx].sg_font_name, FALSE, do_menu, do_tooltip); didit = TRUE; } if (HL_TABLE()[idx].sg_gui_fg_name != NULL) { HL_TABLE()[idx].sg_gui_fg = color_name2handle(HL_TABLE()[idx].sg_gui_fg_name); didit = TRUE; } if (HL_TABLE()[idx].sg_gui_bg_name != NULL) { HL_TABLE()[idx].sg_gui_bg = color_name2handle(HL_TABLE()[idx].sg_gui_bg_name); didit = TRUE; } if (didit) /* need to get a new attr number */ set_hl_attr(idx); } #endif /* * Translate the 'highlight' option into attributes in highlight_attr[] and * set up the user highlights User1..9. If FEAT_STL_OPT is in use, a set of * corresponding highlights to use on top of HLF_SNC is computed. * Called only when the 'highlight' option has been changed and upon first * screen redraw after any :highlight command. * Return FAIL when an invalid flag is found in 'highlight'. OK otherwise. */ int highlight_changed() { int hlf; int i; char_u *p; int attr; char_u *end; int id; #ifdef USER_HIGHLIGHT char_u userhl[10]; # ifdef FEAT_STL_OPT int id_SNC = -1; int id_S = -1; int hlcnt; # endif #endif static int hl_flags[HLF_COUNT] = HL_FLAGS; need_highlight_changed = FALSE; /* * Clear all attributes. */ for (hlf = 0; hlf < (int)HLF_COUNT; ++hlf) highlight_attr[hlf] = 0; /* * First set all attributes to their default value. * Then use the attributes from the 'highlight' option. */ for (i = 0; i < 2; ++i) { if (i) p = p_hl; else p = get_highlight_default(); if (p == NULL) /* just in case */ continue; while (*p) { for (hlf = 0; hlf < (int)HLF_COUNT; ++hlf) if (hl_flags[hlf] == *p) break; ++p; if (hlf == (int)HLF_COUNT || *p == NUL) return FAIL; /* * Allow several hl_flags to be combined, like "bu" for * bold-underlined. */ attr = 0; for ( ; *p && *p != ','; ++p) /* parse upto comma */ { if (vim_iswhite(*p)) /* ignore white space */ continue; if (attr > HL_ALL) /* Combination with ':' is not allowed. */ return FAIL; switch (*p) { case 'b': attr |= HL_BOLD; break; case 'i': attr |= HL_ITALIC; break; case '-': case 'n': /* no highlighting */ break; case 'r': attr |= HL_INVERSE; break; case 's': attr |= HL_STANDOUT; break; case 'u': attr |= HL_UNDERLINE; break; case ':': ++p; /* highlight group name */ if (attr || *p == NUL) /* no combinations */ return FAIL; end = vim_strchr(p, ','); if (end == NULL) end = p + STRLEN(p); id = syn_check_group(p, (int)(end - p)); if (id == 0) return FAIL; attr = syn_id2attr(id); p = end - 1; #if defined(FEAT_STL_OPT) && defined(USER_HIGHLIGHT) if (hlf == (int)HLF_SNC) id_SNC = syn_get_final_id(id); else if (hlf == (int)HLF_S) id_S = syn_get_final_id(id); #endif break; default: return FAIL; } } highlight_attr[hlf] = attr; p = skip_to_option_part(p); /* skip comma and spaces */ } } #ifdef USER_HIGHLIGHT /* Setup the user highlights * * Temporarily utilize 10 more hl entries. Have to be in there * simultaneously in case of table overflows in get_attr_entry() */ # ifdef FEAT_STL_OPT if (ga_grow(&highlight_ga, 10) == FAIL) return FAIL; hlcnt = highlight_ga.ga_len; if (id_S == 0) { /* Make sure id_S is always valid to simplify code below */ memset(&HL_TABLE()[hlcnt + 9], 0, sizeof(struct hl_group)); HL_TABLE()[hlcnt + 9].sg_term = highlight_attr[HLF_S]; id_S = hlcnt + 10; } # endif for (i = 0; i < 9; i++) { sprintf((char *)userhl, "User%d", i + 1); id = syn_name2id(userhl); if (id == 0) { highlight_user[i] = 0; # ifdef FEAT_STL_OPT highlight_stlnc[i] = 0; # endif } else { # ifdef FEAT_STL_OPT struct hl_group *hlt = HL_TABLE(); # endif highlight_user[i] = syn_id2attr(id); # ifdef FEAT_STL_OPT if (id_SNC == 0) { memset(&hlt[hlcnt + i], 0, sizeof(struct hl_group)); hlt[hlcnt + i].sg_term = highlight_attr[HLF_SNC]; hlt[hlcnt + i].sg_cterm = highlight_attr[HLF_SNC]; # ifdef FEAT_GUI hlt[hlcnt + i].sg_gui = highlight_attr[HLF_SNC]; # endif } else mch_memmove(&hlt[hlcnt + i], &hlt[id_SNC - 1], sizeof(struct hl_group)); hlt[hlcnt + i].sg_link = 0; /* Apply difference between UserX and HLF_S to HLF_SNC */ hlt[hlcnt + i].sg_term ^= hlt[id - 1].sg_term ^ hlt[id_S - 1].sg_term; if (hlt[id - 1].sg_start != hlt[id_S - 1].sg_start) hlt[hlcnt + i].sg_start = hlt[id - 1].sg_start; if (hlt[id - 1].sg_stop != hlt[id_S - 1].sg_stop) hlt[hlcnt + i].sg_stop = hlt[id - 1].sg_stop; hlt[hlcnt + i].sg_cterm ^= hlt[id - 1].sg_cterm ^ hlt[id_S - 1].sg_cterm; if (hlt[id - 1].sg_cterm_fg != hlt[id_S - 1].sg_cterm_fg) hlt[hlcnt + i].sg_cterm_fg = hlt[id - 1].sg_cterm_fg; if (hlt[id - 1].sg_cterm_bg != hlt[id_S - 1].sg_cterm_bg) hlt[hlcnt + i].sg_cterm_bg = hlt[id - 1].sg_cterm_bg; # ifdef FEAT_GUI hlt[hlcnt + i].sg_gui ^= hlt[id - 1].sg_gui ^ hlt[id_S - 1].sg_gui; if (hlt[id - 1].sg_gui_fg != hlt[id_S - 1].sg_gui_fg) hlt[hlcnt + i].sg_gui_fg = hlt[id - 1].sg_gui_fg; if (hlt[id - 1].sg_gui_bg != hlt[id_S - 1].sg_gui_bg) hlt[hlcnt + i].sg_gui_bg = hlt[id - 1].sg_gui_bg; if (hlt[id - 1].sg_font != hlt[id_S - 1].sg_font) hlt[hlcnt + i].sg_font = hlt[id - 1].sg_font; # ifdef FEAT_XFONTSET if (hlt[id - 1].sg_fontset != hlt[id_S - 1].sg_fontset) hlt[hlcnt + i].sg_fontset = hlt[id - 1].sg_fontset; # endif # endif highlight_ga.ga_len = hlcnt + i + 1; set_hl_attr(hlcnt + i); /* At long last we can apply */ highlight_stlnc[i] = syn_id2attr(hlcnt + i + 1); # endif } } # ifdef FEAT_STL_OPT highlight_ga.ga_len = hlcnt; # endif #endif /* USER_HIGHLIGHT */ return OK; } #ifdef FEAT_CMDL_COMPL static void highlight_list __ARGS((void)); static void highlight_list_two __ARGS((int cnt, int attr)); /* * Handle command line completion for :highlight command. */ void set_context_in_highlight_cmd(xp, arg) expand_T *xp; char_u *arg; { char_u *p; /* Default: expand group names */ xp->xp_context = EXPAND_HIGHLIGHT; xp->xp_pattern = arg; include_link = TRUE; include_default = TRUE; /* (part of) subcommand already typed */ if (*arg != NUL) { p = skiptowhite(arg); if (*p != NUL) /* past "default" or group name */ { include_default = FALSE; if (STRNCMP("default", arg, p - arg) == 0) { arg = skipwhite(p); xp->xp_pattern = arg; p = skiptowhite(arg); } if (*p != NUL) /* past group name */ { include_link = FALSE; if (arg[1] == 'i' && arg[0] == 'N') highlight_list(); if (STRNCMP("link", arg, p - arg) == 0 || STRNCMP("clear", arg, p - arg) == 0) { xp->xp_pattern = skipwhite(p); p = skiptowhite(xp->xp_pattern); if (*p != NUL) /* past first group name */ { xp->xp_pattern = skipwhite(p); p = skiptowhite(xp->xp_pattern); } } if (*p != NUL) /* past group name(s) */ xp->xp_context = EXPAND_NOTHING; } } } } /* * List highlighting matches in a nice way. */ static void highlight_list() { int i; for (i = 10; --i >= 0; ) highlight_list_two(i, hl_attr(HLF_D)); for (i = 40; --i >= 0; ) highlight_list_two(99, 0); } static void highlight_list_two(cnt, attr) int cnt; int attr; { msg_puts_attr((char_u *)("N \bI \b! \b" + cnt / 11), attr); msg_clr_eos(); out_flush(); ui_delay(cnt == 99 ? 40L : (long)cnt * 50L, FALSE); } #endif /* FEAT_CMDL_COMPL */ #if defined(FEAT_CMDL_COMPL) || (defined(FEAT_SYN_HL) && defined(FEAT_EVAL)) \ || defined(FEAT_SIGNS) || defined(PROTO) /* * Function given to ExpandGeneric() to obtain the list of group names. * Also used for synIDattr() function. */ /*ARGSUSED*/ char_u * get_highlight_name(xp, idx) expand_T *xp; int idx; { if (idx == highlight_ga.ga_len #ifdef FEAT_CMDL_COMPL && include_link #endif ) return (char_u *)"link"; if (idx == highlight_ga.ga_len + 1 #ifdef FEAT_CMDL_COMPL && include_link #endif ) return (char_u *)"clear"; if (idx == highlight_ga.ga_len + 2 #ifdef FEAT_CMDL_COMPL && include_default #endif ) return (char_u *)"default"; if (idx < 0 || idx >= highlight_ga.ga_len) return NULL; return HL_TABLE()[idx].sg_name; } #endif #ifdef FEAT_GUI /* * Free all the highlight group fonts. * Used when quitting for systems which need it. */ void free_highlight_fonts() { int idx; for (idx = 0; idx < highlight_ga.ga_len; ++idx) { gui_mch_free_font(HL_TABLE()[idx].sg_font); HL_TABLE()[idx].sg_font = NOFONT; # ifdef FEAT_XFONTSET gui_mch_free_fontset(HL_TABLE()[idx].sg_fontset); HL_TABLE()[idx].sg_fontset = NOFONTSET; # endif } gui_mch_free_font(gui.norm_font); # ifdef FEAT_XFONTSET gui_mch_free_fontset(gui.fontset); # endif # ifndef HAVE_GTK2 gui_mch_free_font(gui.bold_font); gui_mch_free_font(gui.ital_font); gui_mch_free_font(gui.boldital_font); # endif } #endif /************************************** * End of Highlighting stuff * **************************************/ 
