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- /* vi:set ts=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.
- */
-
- /*
- * ops.c: implementation of various operators: do_shift, do_delete, do_tilde,
- * do_change, do_yank, do_put, do_join
- */
-
- #include "vim.h"
- #include "globals.h"
- #include "proto.h"
- #include "option.h"
- #include "ops.h"
-
- /*
- * Number of registers.
- * 0 = unnamed register, for normal yanks and puts
- * 1..9 = number registers, for deletes
- * 10..35 = named registers
- * 36 = delete register (-)
- * 37 = GUI selection register (*). Only if USE_GUI defined
- */
- #ifdef USE_GUI
- # define NUM_REGISTERS 38
- #else
- # define NUM_REGISTERS 37
- #endif
-
- /*
- * Symbolic names for some registers.
- */
- #define DELETION_REGISTER 36
- #ifdef USE_GUI
- # define GUI_SELECTION_REGISTER 37
- #endif
-
- /*
- * Each yank buffer is an array of pointers to lines.
- */
- static struct yankbuf
- {
- char_u **y_array; /* pointer to array of line pointers */
- linenr_t y_size; /* number of lines in y_array */
- char_u y_type; /* MLINE, MCHAR or MBLOCK */
- } y_buf[NUM_REGISTERS];
-
- static struct yankbuf *y_current; /* ptr to current yank buffer */
- static int yankappend; /* TRUE when appending */
- static struct yankbuf *y_previous = NULL; /* ptr to last written yank buffr */
-
- /*
- * structure used by block_prep, do_delete and do_yank for blockwise operators
- */
- struct block_def
- {
- int startspaces;
- int endspaces;
- int textlen;
- char_u *textstart;
- colnr_t textcol;
- };
-
- static void get_yank_buffer __ARGS((int));
- static int stuff_yank __ARGS((int, char_u *));
- static void free_yank __ARGS((long));
- static void free_yank_all __ARGS((void));
- static void block_prep __ARGS((struct block_def *, linenr_t, int));
- static int same_leader __ARGS((int, char_u *, int, char_u *));
- static int fmt_end_block __ARGS((linenr_t, int *, char_u **));
-
- /*
- * do_shift - handle a shift operation
- */
- void
- do_shift(op, curs_top, amount)
- int op;
- int curs_top;
- int amount;
- {
- register long i;
- int first_char;
-
- if (u_save((linenr_t)(curwin->w_cursor.lnum - 1),
- (linenr_t)(curwin->w_cursor.lnum + op_line_count)) == FAIL)
- return;
- for (i = op_line_count; --i >= 0; )
- {
- first_char = *ml_get_curline();
- if (first_char == NUL) /* empty line */
- curwin->w_cursor.col = 0;
- /*
- * Don't move the line right if it starts with # and p_si is set.
- */
- else
- #if defined(SMARTINDENT) || defined(CINDENT)
- if (first_char != '#' || (
- # ifdef SMARTINDENT
- !curbuf->b_p_si
- # endif
- # if defined(SMARTINDENT) && defined(CINDENT)
- &&
- # endif
- # ifdef CINDENT
- (!curbuf->b_p_cin || !in_cinkeys('#', ' ', TRUE))
- # endif
- ))
- #endif
- {
- /* if (op_block_mode)
- shift the block, not the whole line
- else */
- shift_line(op == LSHIFT, p_sr, amount);
- }
- ++curwin->w_cursor.lnum;
- }
-
- if (curs_top) /* put cursor on first line, for ">>" */
- {
- curwin->w_cursor.lnum -= op_line_count;
- beginline(MAYBE); /* shift_line() may have changed cursor.col */
- }
- else
- --curwin->w_cursor.lnum; /* put cursor on last line, for ":>" */
- updateScreen(CURSUPD);
-
- if (op_line_count > p_report)
- smsg((char_u *)"%ld line%s %ced %d time%s", op_line_count,
- plural(op_line_count), (op == RSHIFT) ? '>' : '<',
- amount, plural((long)amount));
- }
-
- /*
- * shift the current line one shiftwidth left (if left != 0) or right
- * leaves cursor on first blank in the line
- */
- void
- shift_line(left, round, amount)
- int left;
- int round;
- int amount;
- {
- register int count;
- register int i, j;
- int p_sw = (int)curbuf->b_p_sw;
-
- count = get_indent(); /* get current indent */
-
- if (round) /* round off indent */
- {
- i = count / p_sw; /* number of p_sw rounded down */
- j = count % p_sw; /* extra spaces */
- if (j && left) /* first remove extra spaces */
- --amount;
- if (left)
- {
- i -= amount;
- if (i < 0)
- i = 0;
- }
- else
- i += amount;
- count = i * p_sw;
- }
- else /* original vi indent */
- {
- if (left)
- {
- count -= p_sw * amount;
- if (count < 0)
- count = 0;
- }
- else
- count += p_sw * amount;
- }
- set_indent(count, TRUE); /* set new indent */
- }
-
- #if defined(LISPINDENT) || defined(CINDENT)
- /*
- * do_reindent - handle reindenting a block of lines for C or lisp.
- *
- * mechanism copied from do_shift, above
- */
- void
- do_reindent(how)
- int (*how) __ARGS((void));
- {
- register long i;
- char_u *l;
- int count;
-
- if (u_save((linenr_t)(curwin->w_cursor.lnum - 1),
- (linenr_t)(curwin->w_cursor.lnum + op_line_count)) == FAIL)
- return;
-
- for (i = op_line_count; --i >= 0 && !got_int; )
- {
- /* it's a slow thing to do, so give feedback so there's no worry that
- * the computer's just hung. */
-
- if ((i % 50 == 0 || i == op_line_count - 1) && op_line_count > p_report)
- smsg((char_u *)"%ld line%s to indent... ", i, plural(i));
-
- /*
- * Be vi-compatible: For lisp indenting the first line is not
- * indented, unless there is only one line.
- */
- #ifdef LISPINDENT
- if (i != op_line_count - 1 || op_line_count == 1 ||
- how != get_lisp_indent)
- #endif
- {
- l = skipwhite(ml_get_curline());
- if (*l == NUL) /* empty or blank line */
- count = 0;
- else
- count = how(); /* get the indent for this line */
-
- set_indent(count, TRUE);
- }
- ++curwin->w_cursor.lnum;
- }
-
- /* put cursor on first non-blank of indented line */
- curwin->w_cursor.lnum -= op_line_count;
- beginline(MAYBE);
-
- updateScreen(CURSUPD);
-
- if (op_line_count > p_report)
- {
- i = op_line_count - (i + 1);
- smsg((char_u *)"%ld line%s indented ", i, plural(i));
- }
- }
- #endif /* defined(LISPINDENT) || defined(CINDENT) */
-
- /*
- * check if character is name of yank buffer
- * Note: There is no check for 0 (default register), caller should do this
- */
- int
- is_yank_buffer(c, writing)
- int c;
- int writing; /* if TRUE check for writable buffers */
- {
- if (c > '~')
- return FALSE;
- if (isalnum(c) || (!writing && vim_strchr((char_u *)".%:", c) != NULL) ||
- c == '"' || c == '-'
- #ifdef USE_GUI
- || (gui.in_use && c == '*')
- #endif
- )
- return TRUE;
- return FALSE;
- }
-
- /*
- * Set y_current and yankappend, according to the value of yankbuffer.
- *
- * If yankbuffer is 0 and writing, use buffer 0
- * If yankbuffer is 0 and reading, use previous buffer
- */
- static void
- get_yank_buffer(writing)
- int writing;
- {
- register int i;
-
- yankappend = FALSE;
- if (((yankbuffer == 0 && !writing) || yankbuffer == '"') &&
- y_previous != NULL)
- {
- y_current = y_previous;
- return;
- }
- i = yankbuffer;
- if (isdigit(i))
- i -= '0';
- else if (islower(i))
- i -= 'a' - 10;
- else if (isupper(i))
- {
- i -= 'A' - 10;
- yankappend = TRUE;
- }
- else if (yankbuffer == '-')
- i = DELETION_REGISTER;
- #ifdef USE_GUI
- else if (gui.in_use && yankbuffer == '*')
- i = GUI_SELECTION_REGISTER;
- #endif
- else /* not 0-9, a-z, A-Z or '-': use buffer 0 */
- i = 0;
- y_current = &(y_buf[i]);
- if (writing) /* remember the buffer we write into for do_put() */
- y_previous = y_current;
- }
-
- /*
- * return TRUE if the current yank buffer has type MLINE
- */
- int
- yank_buffer_mline()
- {
- if (yankbuffer != 0 && !is_yank_buffer(yankbuffer, FALSE))
- return FALSE;
- get_yank_buffer(FALSE);
- return (y_current->y_type == MLINE);
- }
-
- /*
- * start or stop recording into a yank buffer
- *
- * return FAIL for failure, OK otherwise
- */
- int
- do_record(c)
- int c;
- {
- char_u *p;
- static int bufname;
- int retval;
-
- if (Recording == FALSE) /* start recording */
- {
- /* registers 0-9, a-z and " are allowed */
- if (c > '~' || (!isalnum(c) && c != '"'))
- retval = FAIL;
- else
- {
- Recording = TRUE;
- showmode();
- bufname = c;
- retval = OK;
- }
- }
- else /* stop recording */
- {
- Recording = FALSE;
- MSG("");
- p = get_recorded();
- if (p == NULL)
- retval = FAIL;
- else
- retval = (stuff_yank(bufname, p));
- }
- return retval;
- }
-
- /*
- * stuff string 'p' into yank buffer 'bufname' (append if uppercase)
- * 'p' is assumed to be alloced.
- *
- * return FAIL for failure, OK otherwise
- */
- static int
- stuff_yank(bufname, p)
- int bufname;
- char_u *p;
- {
- char_u *lp;
- char_u **pp;
-
- yankbuffer = bufname;
- /* check for read-only buffer */
- if (yankbuffer != 0 && !is_yank_buffer(yankbuffer, TRUE))
- return FAIL;
- get_yank_buffer(TRUE);
- if (yankappend && y_current->y_array != NULL)
- {
- pp = &(y_current->y_array[y_current->y_size - 1]);
- lp = lalloc((long_u)(STRLEN(*pp) + STRLEN(p) + 1), TRUE);
- if (lp == NULL)
- {
- vim_free(p);
- return FAIL;
- }
- STRCPY(lp, *pp);
- STRCAT(lp, p);
- vim_free(p);
- vim_free(*pp);
- *pp = lp;
- }
- else
- {
- free_yank_all();
- if ((y_current->y_array =
- (char_u **)alloc((unsigned)sizeof(char_u *))) == NULL)
- {
- vim_free(p);
- return FAIL;
- }
- y_current->y_array[0] = p;
- y_current->y_size = 1;
- y_current->y_type = MCHAR; /* used to be MLINE, why? */
- }
- return OK;
- }
-
- /*
- * execute a yank buffer (register): copy it into the stuff buffer
- *
- * return FAIL for failure, OK otherwise
- */
- int
- do_execbuf(c, colon, addcr)
- int c;
- int colon; /* insert ':' before each line */
- int addcr; /* always add '\n' to end of line */
- {
- static int lastc = NUL;
- long i;
- char_u *p;
- int truncated;
- int retval;
-
-
- if (c == '@') /* repeat previous one */
- c = lastc;
- if (c == '%' || !is_yank_buffer(c, FALSE)) /* check for valid buffer */
- return FAIL;
- lastc = c;
-
- if (c == ':') /* use last command line */
- {
- if (last_cmdline == NULL)
- {
- EMSG(e_nolastcmd);
- return FAIL;
- }
- vim_free(new_last_cmdline); /* don't keep the cmdline containing @: */
- new_last_cmdline = NULL;
- if (ins_typebuf((char_u *)"\n", FALSE, 0, TRUE) == FAIL)
- return FAIL;
- if (ins_typebuf(last_cmdline, FALSE, 0, TRUE) == FAIL)
- return FAIL;
- if (ins_typebuf((char_u *)":", FALSE, 0, TRUE) == FAIL)
- return FAIL;
- }
- else if (c == '.') /* use last inserted text */
- {
- p = get_last_insert();
- if (p == NULL)
- {
- EMSG(e_noinstext);
- return FAIL;
- }
- i = STRLEN(p);
- if (i > 0 && p[i - 1] == ESC) /* remove trailing ESC */
- {
- p[i - 1] = NUL;
- truncated = TRUE;
- }
- else
- truncated = FALSE;
- retval = ins_typebuf(p, FALSE, 0, TRUE);
- if (truncated)
- p[i - 1] = ESC;
- return retval;
- }
- else
- {
- yankbuffer = c;
- get_yank_buffer(FALSE);
- if (y_current->y_array == NULL)
- return FAIL;
-
- /*
- * Insert lines into typeahead buffer, from last one to first one.
- */
- for (i = y_current->y_size; --i >= 0; )
- {
- /* insert newline between lines and after last line if type is MLINE */
- if (y_current->y_type == MLINE || i < y_current->y_size - 1
- || addcr)
- {
- if (ins_typebuf((char_u *)"\n", FALSE, 0, TRUE) == FAIL)
- return FAIL;
- }
- if (ins_typebuf(y_current->y_array[i], FALSE, 0, TRUE) == FAIL)
- return FAIL;
- if (colon && ins_typebuf((char_u *)":", FALSE, 0, TRUE) == FAIL)
- return FAIL;
- }
- Exec_reg = TRUE; /* disable the 'q' command */
- }
- return OK;
- }
-
- /*
- * Insert a yank buffer: copy it into the Read buffer.
- * Used by CTRL-R command and middle mouse button in insert mode.
- *
- * return FAIL for failure, OK otherwise
- */
- int
- insertbuf(c)
- int c;
- {
- long i;
- int retval = OK;
-
- /*
- * It is possible to get into an endless loop by having CTRL-R a in
- * register a and then, in insert mode, doing CTRL-R a.
- * If you hit CTRL-C, the loop will be broken here.
- */
- mch_breakcheck();
- if (got_int)
- return FAIL;
-
- /* check for valid buffer */
- if (c != NUL && !is_yank_buffer(c, FALSE))
- return FAIL;
-
- #ifdef USE_GUI
- if (c == '*')
- gui_get_selection(); /* may fill * register */
- #endif
-
- if (c == '.') /* insert last inserted text */
- retval = stuff_inserted(NUL, 1L, TRUE);
- else if (c == '%') /* insert file name */
- {
- if (check_fname() == FAIL)
- return FAIL;
- stuffReadbuff(curbuf->b_xfilename);
- }
- else if (c == ':') /* insert last command line */
- {
- if (last_cmdline == NULL)
- {
- EMSG(e_nolastcmd);
- return FAIL;
- }
- stuffReadbuff(last_cmdline);
- }
- else /* name or number register */
- {
- yankbuffer = c;
- get_yank_buffer(FALSE);
- if (y_current->y_array == NULL)
- retval = FAIL;
- else
- {
-
- for (i = 0; i < y_current->y_size; ++i)
- {
- stuffReadbuff(y_current->y_array[i]);
- /* insert newline between lines and after last line if type is
- * MLINE */
- if (y_current->y_type == MLINE || i < y_current->y_size - 1)
- stuffReadbuff((char_u *)"\n");
- }
- }
- }
-
- return retval;
- }
-
- /*
- * paste a yank buffer into the command line.
- * used by CTRL-R command in command-line mode
- * insertbuf() can't be used here, because special characters from the
- * register contents will be interpreted as commands.
- *
- * return FAIL for failure, OK otherwise
- */
- int
- cmdline_paste(c)
- int c;
- {
- long i;
-
- if (!is_yank_buffer(c, FALSE)) /* check for valid buffer */
- return FAIL;
-
- #ifdef USE_GUI
- if (c == '*')
- gui_get_selection();
- #endif
-
- if (c == '.') /* insert last inserted text */
- return FAIL; /* Unimplemented */
-
- if (c == '%') /* insert file name */
- {
- if (check_fname() == FAIL)
- return FAIL;
- return put_on_cmdline(curbuf->b_xfilename, -1, TRUE);
- }
-
- if (c == ':') /* insert last command line */
- {
- if (last_cmdline == NULL)
- return FAIL;
- return put_on_cmdline(last_cmdline, -1, TRUE);
- }
-
- yankbuffer = c;
- get_yank_buffer(FALSE);
- if (y_current->y_array == NULL)
- return FAIL;
-
- for (i = 0; i < y_current->y_size; ++i)
- {
- put_on_cmdline(y_current->y_array[i], -1, FALSE);
-
- /* insert ^M between lines and after last line if type is MLINE */
- if (y_current->y_type == MLINE || i < y_current->y_size - 1)
- put_on_cmdline((char_u *)"\r", 1, FALSE);
- }
- return OK;
- }
-
- /*
- * do_delete - handle a delete operation
- */
- void
- do_delete()
- {
- register int n;
- linenr_t lnum;
- char_u *ptr;
- char_u *newp, *oldp;
- linenr_t old_lcount = curbuf->b_ml.ml_line_count;
- int did_yank = FALSE;
- struct block_def bd;
-
- if (curbuf->b_ml.ml_flags & ML_EMPTY) /* nothing to do */
- return;
-
- /*
- * Imitate the strange Vi behaviour: If the delete spans more than one line
- * and op_motion_type == MCHAR and the result is a blank line, make the delete
- * linewise. Don't do this for the change command.
- */
- if (op_motion_type == MCHAR && op_line_count > 1 && op_type == DELETE)
- {
- ptr = ml_get(curbuf->b_op_end.lnum) + curbuf->b_op_end.col +
- op_inclusive;
- ptr = skipwhite(ptr);
- if (*ptr == NUL && inindent(0))
- op_motion_type = MLINE;
- }
-
- /*
- * Check for trying to delete (e.g. "D") in an empty line.
- * Note: For change command it is ok.
- */
- if (op_motion_type == MCHAR && op_line_count == 1 &&
- op_type == DELETE && *ml_get(curbuf->b_op_start.lnum) == NUL)
- {
- beep_flush();
- return;
- }
-
- /*
- * Do a yank of whatever we're about to delete.
- * If a yank buffer was specified, put the deleted text into that buffer
- */
- if (yankbuffer != 0)
- {
- /* check for read-only buffer */
- if (!is_yank_buffer(yankbuffer, TRUE))
- {
- beep_flush();
- return;
- }
- get_yank_buffer(TRUE); /* yank into specified buffer */
- if (do_yank(TRUE, FALSE) == OK) /* yank without message */
- did_yank = TRUE;
- }
-
- /*
- * Put deleted text into register 1 and shift number buffers if
- * the delete contains a line break, or when a yankbuffer has been specified!
- */
- if (yankbuffer != 0 || op_motion_type == MLINE || op_line_count > 1)
- {
- y_current = &y_buf[9];
- free_yank_all(); /* free buffer nine */
- for (n = 9; n > 1; --n)
- y_buf[n] = y_buf[n - 1];
- y_previous = y_current = &y_buf[1];
- y_buf[1].y_array = NULL; /* set buffer one to empty */
- yankbuffer = 0;
- }
- else if (yankbuffer == 0) /* yank into unnamed buffer */
- {
- yankbuffer = '-'; /* use special delete buffer */
- get_yank_buffer(TRUE);
- yankbuffer = 0;
- }
-
- if (yankbuffer == 0 && do_yank(TRUE, FALSE) == OK)
- did_yank = TRUE;
-
- /*
- * If there's too much stuff to fit in the yank buffer, then get a
- * confirmation before doing the delete. This is crude, but simple. And it
- * avoids doing a delete of something we can't put back if we want.
- */
- if (!did_yank)
- {
- if (ask_yesno((char_u *)"cannot yank; delete anyway", TRUE) != 'y')
- {
- emsg(e_abort);
- return;
- }
- }
-
- /*
- * block mode delete
- */
- if (op_block_mode)
- {
- if (u_save((linenr_t)(curbuf->b_op_start.lnum - 1),
- (linenr_t)(curbuf->b_op_end.lnum + 1)) == FAIL)
- return;
-
- for (lnum = curwin->w_cursor.lnum;
- curwin->w_cursor.lnum <= curbuf->b_op_end.lnum;
- ++curwin->w_cursor.lnum)
- {
- block_prep(&bd, curwin->w_cursor.lnum, TRUE);
- if (bd.textlen == 0) /* nothing to delete */
- continue;
-
- /*
- * If we delete a TAB, it may be replaced by several characters.
- * Thus the number of characters may increase!
- */
- n = bd.textlen - bd.startspaces - bd.endspaces; /* number of chars deleted */
- oldp = ml_get_curline();
- newp = alloc_check((unsigned)STRLEN(oldp) + 1 - n);
- if (newp == NULL)
- continue;
- /* copy up to deleted part */
- vim_memmove(newp, oldp, (size_t)bd.textcol);
- /* insert spaces */
- copy_spaces(newp + bd.textcol, (size_t)(bd.startspaces + bd.endspaces));
- /* copy the part after the deleted part */
- oldp += bd.textcol + bd.textlen;
- vim_memmove(newp + bd.textcol + bd.startspaces + bd.endspaces,
- oldp, STRLEN(oldp) + 1);
- /* replace the line */
- ml_replace(curwin->w_cursor.lnum, newp, FALSE);
- }
-
- curwin->w_cursor.lnum = lnum;
- adjust_cursor();
-
- CHANGED;
- updateScreen(VALID_TO_CURSCHAR);
- op_line_count = 0; /* no lines deleted */
- }
- else if (op_motion_type == MLINE)
- {
- if (op_type == CHANGE)
- {
- /* Delete the lines except the first one.
- * Temporarily move the cursor to the next line.
- * Save the current line number, if the last line is deleted
- * it may be changed.
- */
- if (op_line_count > 1)
- {
- lnum = curwin->w_cursor.lnum;
- ++curwin->w_cursor.lnum;
- dellines((long)(op_line_count - 1), TRUE, TRUE);
- curwin->w_cursor.lnum = lnum;
- }
- if (u_save_cursor() == FAIL)
- return;
- if (curbuf->b_p_ai) /* don't delete indent */
- {
- beginline(TRUE); /* put cursor on first non-white */
- did_ai = TRUE; /* delete the indent when ESC hit */
- }
- truncate_line(FALSE);
- if (curwin->w_cursor.col > 0)
- --curwin->w_cursor.col; /* put cursor on last char in line */
- }
- else
- {
- dellines(op_line_count, TRUE, TRUE);
- }
- u_clearline(); /* "U" command should not be possible after "dd" */
- beginline(TRUE);
- }
- else if (op_line_count == 1) /* delete characters within one line */
- {
- if (u_save_cursor() == FAIL)
- return;
- /* if 'cpoptions' contains '$', display '$' at end of change */
- if (vim_strchr(p_cpo, CPO_DOLLAR) != NULL && op_type == CHANGE &&
- curbuf->b_op_end.lnum == curwin->w_cursor.lnum && !op_is_VIsual)
- display_dollar(curbuf->b_op_end.col - !op_inclusive);
- n = curbuf->b_op_end.col - curbuf->b_op_start.col + 1 - !op_inclusive;
- while (n-- > 0)
- if (delchar(TRUE) == FAIL)
- break;
- }
- else /* delete characters between lines */
- {
- if (u_save_cursor() == FAIL) /* save first line for undo */
- return;
- truncate_line(TRUE); /* delete from cursor to end of line */
-
- curbuf->b_op_start = curwin->w_cursor; /* remember curwin->w_cursor */
- ++curwin->w_cursor.lnum;
- /* includes save for undo */
- dellines((long)(op_line_count - 2), TRUE, TRUE);
-
- if (u_save_cursor() == FAIL) /* save last line for undo */
- return;
- n = curbuf->b_op_end.col - !op_inclusive;
- curwin->w_cursor.col = 0;
- while (n-- >= 0) /* delete from start of line until op_end */
- if (delchar(TRUE) == FAIL)
- break;
- curwin->w_cursor = curbuf->b_op_start; /* restore curwin->w_cursor */
- (void)do_join(FALSE, curs_rows() == OK);
- }
-
- if ((op_motion_type == MCHAR && op_line_count == 1) || op_type == CHANGE)
- {
- if (dollar_vcol)
- must_redraw = 0; /* don't want a redraw now */
- cursupdate();
- if (!dollar_vcol)
- updateline();
- }
- else if (!global_busy) /* no need to update screen for :global */
- updateScreen(CURSUPD);
-
- msgmore(curbuf->b_ml.ml_line_count - old_lcount);
-
- /* correct op_end for deleted text (for "']" command) */
- if (op_block_mode)
- curbuf->b_op_end.col = curbuf->b_op_start.col;
- else
- curbuf->b_op_end = curbuf->b_op_start;
- }
-
- /*
- * do_tilde - handle the (non-standard vi) tilde operator
- */
- void
- do_tilde()
- {
- FPOS pos;
- struct block_def bd;
-
- if (u_save((linenr_t)(curbuf->b_op_start.lnum - 1),
- (linenr_t)(curbuf->b_op_end.lnum + 1)) == FAIL)
- return;
-
- pos = curbuf->b_op_start;
- if (op_block_mode) /* Visual block mode */
- {
- for (; pos.lnum <= curbuf->b_op_end.lnum; ++pos.lnum)
- {
- block_prep(&bd, pos.lnum, FALSE);
- pos.col = bd.textcol;
- while (--bd.textlen >= 0)
- {
- swapchar(&pos);
- if (inc(&pos) == -1) /* at end of file */
- break;
- }
- }
- }
- else /* not block mode */
- {
- if (op_motion_type == MLINE)
- {
- pos.col = 0;
- curbuf->b_op_end.col = STRLEN(ml_get(curbuf->b_op_end.lnum));
- if (curbuf->b_op_end.col)
- --curbuf->b_op_end.col;
- }
- else if (!op_inclusive)
- dec(&(curbuf->b_op_end));
-
- while (ltoreq(pos, curbuf->b_op_end))
- {
- swapchar(&pos);
- if (inc(&pos) == -1) /* at end of file */
- break;
- }
- }
-
- if (op_motion_type == MCHAR && op_line_count == 1 && !op_block_mode)
- {
- cursupdate();
- updateline();
- }
- else
- updateScreen(CURSUPD);
-
- if (op_line_count > p_report)
- smsg((char_u *)"%ld line%s ~ed",
- op_line_count, plural(op_line_count));
- }
-
- /*
- * If op_type == UPPER: make uppercase,
- * if op_type == LOWER: make lowercase,
- * else swap case of character at 'pos'
- */
- void
- swapchar(pos)
- FPOS *pos;
- {
- int c;
-
- c = gchar(pos);
- if (islower(c) && op_type != LOWER)
- {
- pchar(*pos, toupper(c));
- CHANGED;
- }
- else if (isupper(c) && op_type != UPPER)
- {
- pchar(*pos, tolower(c));
- CHANGED;
- }
- }
-
- /*
- * do_change - handle a change operation
- *
- * return TRUE if edit() returns because of a CTRL-O command
- */
- int
- do_change()
- {
- register colnr_t l;
-
- l = curbuf->b_op_start.col;
- if (op_motion_type == MLINE)
- {
- l = 0;
- #ifdef SMARTINDENT
- if (curbuf->b_p_si)
- can_si = TRUE; /* It's like opening a new line, do si */
- #endif
- }
-
- if (!op_empty)
- do_delete(); /* delete the text and take care of undo */
-
- if ((l > curwin->w_cursor.col) && !lineempty(curwin->w_cursor.lnum))
- inc_cursor();
-
- #if defined(LISPINDENT) || defined(CINDENT)
- if (op_motion_type == MLINE)
- {
- # ifdef LISPINDENT
- if (curbuf->b_p_lisp && curbuf->b_p_ai)
- fixthisline(get_lisp_indent);
- # endif
- # if defined(LISPINDENT) && defined(CINDENT)
- else
- # endif
- # ifdef CINDENT
- if (curbuf->b_p_cin)
- fixthisline(get_c_indent);
- # endif
- }
- #endif
-
- op_type = NOP; /* don't want op_type == CHANGED in Insert mode */
- return edit(NUL, FALSE, (linenr_t)1);
- }
-
- /*
- * set all the yank buffers to empty (called from main())
- */
- void
- init_yank()
- {
- register int i;
-
- for (i = 0; i < NUM_REGISTERS; ++i)
- y_buf[i].y_array = NULL;
- }
-
- /*
- * Free "n" lines from the current yank buffer.
- * Called for normal freeing and in case of error.
- */
- static void
- free_yank(n)
- long n;
- {
- if (y_current->y_array != NULL)
- {
- register long i;
-
- for (i = n; --i >= 0; )
- {
- if ((i & 1023) == 1023) /* this may take a while */
- {
- /*
- * This message should never cause a hit-return message.
- * Overwrite this message with any next message.
- */
- ++no_wait_return;
- smsg((char_u *)"freeing %ld lines", i + 1);
- --no_wait_return;
- msg_didout = FALSE;
- msg_col = 0;
- }
- vim_free(y_current->y_array[i]);
- }
- vim_free(y_current->y_array);
- y_current->y_array = NULL;
- if (n >= 1000)
- MSG("");
- }
- }
-
- static void
- free_yank_all()
- {
- free_yank(y_current->y_size);
- }
-
- /*
- * Yank the text between curwin->w_cursor and startpos into a yank buffer.
- * If we are to append ("uppercase), we first yank into a new yank buffer and
- * then concatenate the old and the new one (so we keep the old one in case
- * of out-of-memory).
- *
- * return FAIL for failure, OK otherwise
- */
- int
- do_yank(deleting, mess)
- int deleting;
- int mess;
- {
- long i; /* index in y_array[] */
- struct yankbuf *curr; /* copy of y_current */
- struct yankbuf newbuf; /* new yank buffer when appending */
- char_u **new_ptr;
- register linenr_t lnum; /* current line number */
- long j;
- int yanktype = op_motion_type;
- long yanklines = op_line_count;
- linenr_t yankendlnum = curbuf->b_op_end.lnum;
-
- char_u *pnew;
- struct block_def bd;
-
- /* check for read-only buffer */
- if (yankbuffer != 0 && !is_yank_buffer(yankbuffer, TRUE))
- {
- beep_flush();
- return FAIL;
- }
- if (!deleting) /* do_delete() already set y_current */
- get_yank_buffer(TRUE);
-
- curr = y_current;
- /* append to existing contents */
- if (yankappend && y_current->y_array != NULL)
- y_current = &newbuf;
- else
- free_yank_all(); /* free previously yanked lines */
-
- /*
- * If the cursor was in column 1 before and after the movement, and the
- * operator is not inclusive, the yank is always linewise.
- */
- if (op_motion_type == MCHAR && curbuf->b_op_start.col == 0 &&
- !op_inclusive && curbuf->b_op_end.col == 0 && yanklines > 1)
- {
- yanktype = MLINE;
- --yankendlnum;
- --yanklines;
- }
-
- y_current->y_size = yanklines;
- y_current->y_type = yanktype; /* set the yank buffer type */
- y_current->y_array = (char_u **)lalloc((long_u)(sizeof(char_u *) *
- yanklines), TRUE);
-
- if (y_current->y_array == NULL)
- {
- y_current = curr;
- return FAIL;
- }
-
- i = 0;
- lnum = curbuf->b_op_start.lnum;
-
- /*
- * Visual block mode
- */
- if (op_block_mode)
- {
- y_current->y_type = MBLOCK; /* set the yank buffer type */
- for ( ; lnum <= yankendlnum; ++lnum)
- {
- block_prep(&bd, lnum, FALSE);
-
- if ((pnew = alloc(bd.startspaces + bd.endspaces +
- bd.textlen + 1)) == NULL)
- goto fail;
- y_current->y_array[i++] = pnew;
-
- copy_spaces(pnew, (size_t)bd.startspaces);
- pnew += bd.startspaces;
-
- vim_memmove(pnew, bd.textstart, (size_t)bd.textlen);
- pnew += bd.textlen;
-
- copy_spaces(pnew, (size_t)bd.endspaces);
- pnew += bd.endspaces;
-
- *pnew = NUL;
- }
- }
- else
- {
- /*
- * there are three parts for non-block mode:
- * 1. if yanktype != MLINE yank last part of the top line
- * 2. yank the lines between op_start and op_end, inclusive when
- * yanktype == MLINE
- * 3. if yanktype != MLINE yank first part of the bot line
- */
- if (yanktype != MLINE)
- {
- if (yanklines == 1) /* op_start and op_end on same line */
- {
- j = curbuf->b_op_end.col - curbuf->b_op_start.col +
- 1 - !op_inclusive;
- if ((y_current->y_array[0] = strnsave(ml_get(lnum) +
- curbuf->b_op_start.col, (int)j)) == NULL)
- {
- fail:
- free_yank(i); /* free the allocated lines */
- y_current = curr;
- return FAIL;
- }
- goto success;
- }
- if ((y_current->y_array[0] = strsave(ml_get(lnum++) +
- curbuf->b_op_start.col)) == NULL)
- goto fail;
- ++i;
- }
-
- while (yanktype == MLINE ? (lnum <= yankendlnum) : (lnum < yankendlnum))
- {
- if ((y_current->y_array[i] = strsave(ml_get(lnum++))) == NULL)
- goto fail;
- ++i;
- }
- if (yanktype != MLINE)
- {
- if ((y_current->y_array[i] = strnsave(ml_get(yankendlnum),
- curbuf->b_op_end.col + 1 - !op_inclusive)) == NULL)
- goto fail;
- }
- }
-
- success:
- if (curr != y_current) /* append the new block to the old block */
- {
- new_ptr = (char_u **)lalloc((long_u)(sizeof(char_u *) *
- (curr->y_size + y_current->y_size)), TRUE);
- if (new_ptr == NULL)
- goto fail;
- for (j = 0; j < curr->y_size; ++j)
- new_ptr[j] = curr->y_array[j];
- vim_free(curr->y_array);
- curr->y_array = new_ptr;
-
- if (yanktype == MLINE) /* MLINE overrides MCHAR and MBLOCK */
- curr->y_type = MLINE;
-
- /* concatenate the last line of the old block with the first line of
- * the new block */
- if (curr->y_type == MCHAR)
- {
- pnew = lalloc((long_u)(STRLEN(curr->y_array[curr->y_size - 1])
- + STRLEN(y_current->y_array[0]) + 1), TRUE);
- if (pnew == NULL)
- {
- i = y_current->y_size - 1;
- goto fail;
- }
- STRCPY(pnew, curr->y_array[--j]);
- STRCAT(pnew, y_current->y_array[0]);
- vim_free(curr->y_array[j]);
- vim_free(y_current->y_array[0]);
- curr->y_array[j++] = pnew;
- i = 1;
- }
- else
- i = 0;
- while (i < y_current->y_size)
- curr->y_array[j++] = y_current->y_array[i++];
- curr->y_size = j;
- vim_free(y_current->y_array);
- y_current = curr;
- }
- if (mess) /* Display message about yank? */
- {
- if (yanktype == MCHAR && !op_block_mode && yanklines == 1)
- yanklines = 0;
- if (yanklines > p_report)
- {
- cursupdate(); /* redisplay now, so message is not deleted */
- smsg((char_u *)"%ld line%s yanked", yanklines, plural(yanklines));
- }
- }
-
- return OK;
- }
-
- /*
- * put contents of register into the text
- * For ":put" command count == -1.
- */
- void
- do_put(dir, count, fix_indent)
- int dir; /* BACKWARD for 'P', FORWARD for 'p' */
- long count;
- int fix_indent; /* make indent look nice */
- {
- char_u *ptr;
- char_u *newp, *oldp;
- int yanklen;
- int oldlen;
- int totlen = 0; /* init for gcc */
- linenr_t lnum;
- colnr_t col;
- long i; /* index in y_array[] */
- int y_type;
- long y_size;
- char_u **y_array;
- long nr_lines = 0;
- colnr_t vcol;
- int delcount;
- int incr = 0;
- long j;
- FPOS new_cursor;
- int indent;
- int orig_indent = 0; /* init for gcc */
- int indent_diff = 0; /* init for gcc */
- int first_indent = TRUE;
- FPOS old_pos;
- struct block_def bd;
- char_u *insert_string = NULL;
-
- #ifdef USE_GUI
- if (yankbuffer == '*')
- gui_get_selection();
- #endif
-
- if (fix_indent)
- orig_indent = get_indent();
-
- curbuf->b_op_start = curwin->w_cursor; /* default for "'[" command */
- if (dir == FORWARD)
- curbuf->b_op_start.col++;
- curbuf->b_op_end = curwin->w_cursor; /* default for "']" command */
-
- /*
- * Using inserted text works differently, because the buffer includes
- * special characters (newlines, etc.).
- */
- if (yankbuffer == '.')
- {
- (void)stuff_inserted((dir == FORWARD ? (count == -1 ? 'o' : 'a') :
- (count == -1 ? 'O' : 'i')), count, FALSE);
- return;
- }
-
- /*
- * For '%' (file name) and ':' (last command line) we have to create a
- * fake yank buffer.
- */
- if (yankbuffer == '%') /* use file name */
- {
- if (check_fname() == FAIL)
- return;
- insert_string = curbuf->b_xfilename;
- }
- else if (yankbuffer == ':') /* use last command line */
- {
- if (last_cmdline == NULL)
- {
- EMSG(e_nolastcmd);
- return;
- }
- insert_string = last_cmdline;
- }
-
- if (insert_string != NULL)
- {
- y_type = MCHAR; /* use fake one-line yank buffer */
- y_size = 1;
- y_array = &insert_string;
- }
- else
- {
- get_yank_buffer(FALSE);
-
- y_type = y_current->y_type;
- y_size = y_current->y_size;
- y_array = y_current->y_array;
- }
-
- if (count == -1) /* :put command */
- {
- y_type = MLINE;
- count = 1;
- }
-
- if (y_size == 0 || y_array == NULL)
- {
- EMSG2("Nothing in register %s",
- yankbuffer == 0 ? (char_u *)"\"" : transchar(yankbuffer));
- return;
- }
-
- if (y_type == MBLOCK)
- {
- lnum = curwin->w_cursor.lnum + y_size + 1;
- if (lnum > curbuf->b_ml.ml_line_count)
- lnum = curbuf->b_ml.ml_line_count + 1;
- if (u_save(curwin->w_cursor.lnum - 1, lnum) == FAIL)
- return;
- }
- else if (u_save_cursor() == FAIL)
- return;
-
- yanklen = STRLEN(y_array[0]);
- CHANGED;
-
- lnum = curwin->w_cursor.lnum;
- col = curwin->w_cursor.col;
-
- /*
- * block mode
- */
- if (y_type == MBLOCK)
- {
- if (dir == FORWARD && gchar_cursor() != NUL)
- {
- getvcol(curwin, &curwin->w_cursor, NULL, NULL, &col);
- ++col;
- ++curwin->w_cursor.col;
- }
- else
- getvcol(curwin, &curwin->w_cursor, &col, NULL, NULL);
- for (i = 0; i < y_size; ++i)
- {
- bd.startspaces = 0;
- bd.endspaces = 0;
- bd.textcol = 0;
- vcol = 0;
- delcount = 0;
-
- /* add a new line */
- if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
- {
- ml_append(curbuf->b_ml.ml_line_count, (char_u *)"",
- (colnr_t)1, FALSE);
- ++nr_lines;
- }
- oldp = ml_get_curline();
- oldlen = STRLEN(oldp);
- for (ptr = oldp; vcol < col && *ptr; ++ptr)
- {
- /* Count a tab for what it's worth (if list mode not on) */
- incr = lbr_chartabsize(ptr, (colnr_t)vcol);
- vcol += incr;
- ++bd.textcol;
- }
- if (vcol < col) /* line too short, padd with spaces */
- {
- bd.startspaces = col - vcol;
- }
- else if (vcol > col)
- {
- bd.endspaces = vcol - col;
- bd.startspaces = incr - bd.endspaces;
- --bd.textcol;
- delcount = 1;
- }
- yanklen = STRLEN(y_array[i]);
- totlen = count * yanklen + bd.startspaces + bd.endspaces;
- newp = alloc_check((unsigned)totlen + oldlen + 1);
- if (newp == NULL)
- break;
- /* copy part up to cursor to new line */
- ptr = newp;
- vim_memmove(ptr, oldp, (size_t)bd.textcol);
- ptr += bd.textcol;
- /* may insert some spaces before the new text */
- copy_spaces(ptr, (size_t)bd.startspaces);
- ptr += bd.startspaces;
- /* insert the new text */
- for (j = 0; j < count; ++j)
- {
- vim_memmove(ptr, y_array[i], (size_t)yanklen);
- ptr += yanklen;
- }
- /* may insert some spaces after the new text */
- copy_spaces(ptr, (size_t)bd.endspaces);
- ptr += bd.endspaces;
- /* move the text after the cursor to the end of the line. */
- vim_memmove(ptr, oldp + bd.textcol + delcount,
- (size_t)(oldlen - bd.textcol - delcount + 1));
- ml_replace(curwin->w_cursor.lnum, newp, FALSE);
-
- ++curwin->w_cursor.lnum;
- if (i == 0)
- curwin->w_cursor.col += bd.startspaces;
- }
- /* for "']" command */
- curbuf->b_op_end.lnum = curwin->w_cursor.lnum - 1;
- curbuf->b_op_end.col = bd.textcol + totlen - 1;
- curwin->w_cursor.lnum = lnum;
- cursupdate();
- updateScreen(VALID_TO_CURSCHAR);
- }
- else /* not block mode */
- {
- if (y_type == MCHAR)
- {
- /* if type is MCHAR, FORWARD is the same as BACKWARD on the next char */
- if (dir == FORWARD && gchar_cursor() != NUL)
- {
- ++col;
- if (yanklen)
- {
- ++curwin->w_cursor.col;
- ++curbuf->b_op_end.col;
- }
- }
- new_cursor = curwin->w_cursor;
- }
- else if (dir == BACKWARD)
- /* if type is MLINE, BACKWARD is the same as FORWARD on the previous line */
- --lnum;
-
- /*
- * simple case: insert into current line
- */
- if (y_type == MCHAR && y_size == 1)
- {
- totlen = count * yanklen;
- if (totlen)
- {
- oldp = ml_get(lnum);
- newp = alloc_check((unsigned)(STRLEN(oldp) + totlen + 1));
- if (newp == NULL)
- return; /* alloc() will give error message */
- vim_memmove(newp, oldp, (size_t)col);
- ptr = newp + col;
- for (i = 0; i < count; ++i)
- {
- vim_memmove(ptr, y_array[0], (size_t)yanklen);
- ptr += yanklen;
- }
- vim_memmove(ptr, oldp + col, STRLEN(oldp + col) + 1);
- ml_replace(lnum, newp, FALSE);
- /* put cursor on last putted char */
- curwin->w_cursor.col += (colnr_t)(totlen - 1);
- }
- curbuf->b_op_end = curwin->w_cursor;
- updateline();
- }
- else
- {
- while (--count >= 0)
- {
- i = 0;
- if (y_type == MCHAR)
- {
- /*
- * Split the current line in two at the insert position.
- * First insert y_array[size - 1] in front of second line.
- * Then append y_array[0] to first line.
- */
- ptr = ml_get(lnum) + col;
- totlen = STRLEN(y_array[y_size - 1]);
- newp = alloc_check((unsigned)(STRLEN(ptr) + totlen + 1));
- if (newp == NULL)
- goto error;
- STRCPY(newp, y_array[y_size - 1]);
- STRCAT(newp, ptr);
- /* insert second line */
- ml_append(lnum, newp, (colnr_t)0, FALSE);
- vim_free(newp);
-
- oldp = ml_get(lnum);
- newp = alloc_check((unsigned)(col + yanklen + 1));
- if (newp == NULL)
- goto error;
- /* copy first part of line */
- vim_memmove(newp, oldp, (size_t)col);
- /* append to first line */
- vim_memmove(newp + col, y_array[0], (size_t)(yanklen + 1));
- ml_replace(lnum, newp, FALSE);
-
- curwin->w_cursor.lnum = lnum;
- i = 1;
- }
-
- while (i < y_size)
- {
- if ((y_type != MCHAR || i < y_size - 1) &&
- ml_append(lnum, y_array[i], (colnr_t)0, FALSE) == FAIL)
- goto error;
- lnum++;
- i++;
- if (fix_indent)
- {
- old_pos = curwin->w_cursor;
- curwin->w_cursor.lnum = lnum;
- ptr = ml_get(lnum);
- #if defined(SMARTINDENT) || defined(CINDENT)
- if (*ptr == '#'
- # ifdef SMARTINDENT
- && curbuf->b_p_si
- # endif
- # ifdef CINDENT
- && curbuf->b_p_cin && in_cinkeys('#', ' ', TRUE)
- # endif
- )
-
- indent = 0; /* Leave # lines at start */
- else
- #endif
- if (*ptr == NUL)
- indent = 0; /* Ignore empty lines */
- else if (first_indent)
- {
- indent_diff = orig_indent - get_indent();
- indent = orig_indent;
- first_indent = FALSE;
- }
- else if ((indent = get_indent() + indent_diff) < 0)
- indent = 0;
- set_indent(indent, TRUE);
- curwin->w_cursor = old_pos;
- }
- ++nr_lines;
- }
- }
-
- /* put '] at last inserted character */
- curbuf->b_op_end.lnum = lnum;
- col = STRLEN(y_array[y_size - 1]);
- if (col > 1)
- curbuf->b_op_end.col = col - 1;
- else
- curbuf->b_op_end.col = 0;
-
- if (y_type == MLINE)
- {
- curwin->w_cursor.col = 0;
- if (dir == FORWARD)
- {
- updateScreen(NOT_VALID); /* recomp. curwin->w_botline */
- ++curwin->w_cursor.lnum;
- }
- /* put cursor on first non-blank in last inserted line */
- beginline(TRUE);
- }
- else /* put cursor on first inserted character */
- {
- curwin->w_cursor = new_cursor;
- }
-
- error:
- if (y_type == MLINE) /* for '[ */
- {
- curbuf->b_op_start.col = 0;
- if (dir == FORWARD)
- curbuf->b_op_start.lnum++;
- }
- mark_adjust(curbuf->b_op_start.lnum + (y_type == MCHAR),
- MAXLNUM, nr_lines, 0L);
- updateScreen(CURSUPD);
- }
- }
-
- msgmore(nr_lines);
- curwin->w_set_curswant = TRUE;
- }
-
- /* Return the character name of the register with the given number */
- int
- get_register_name(num)
- int num;
- {
- if (num == -1)
- return '"';
- else if (num < 10)
- return num + '0';
- else if (num == DELETION_REGISTER)
- return '-';
- #ifdef USE_GUI
- else if (num == GUI_SELECTION_REGISTER)
- return '*';
- #endif
- else
- return num + 'a' - 10;
- }
-
- /*
- * display the contents of the yank buffers
- */
- void
- do_dis(arg)
- char_u *arg;
- {
- register int i, n;
- register long j;
- register char_u *p;
- register struct yankbuf *yb;
- char_u name;
-
- if (arg != NULL && *arg == NUL)
- arg = NULL;
-
- set_highlight('t'); /* Highlight title */
- start_highlight();
- MSG_OUTSTR("\n--- Registers ---");
- stop_highlight();
- for (i = -1; i < NUM_REGISTERS; ++i)
- {
- if (i == -1)
- {
- if (y_previous != NULL)
- yb = y_previous;
- else
- yb = &(y_buf[0]);
- }
- else
- yb = &(y_buf[i]);
- name = get_register_name(i);
- if (yb->y_array != NULL && (arg == NULL ||
- vim_strchr(arg, name) != NULL))
- {
- msg_outchar('\n');
- msg_outchar('"');
- msg_outchar(name);
- MSG_OUTSTR(" ");
-
- n = (int)Columns - 6;
- for (j = 0; j < yb->y_size && n > 1; ++j)
- {
- if (j)
- {
- MSG_OUTSTR("^J");
- n -= 2;
- }
- for (p = yb->y_array[j]; *p && (n -= charsize(*p)) >= 0; ++p)
- msg_outtrans_len(p, 1);
- }
- if (n > 1 && yb->y_type == MLINE)
- MSG_OUTSTR("^J");
- flushbuf(); /* show one line at a time */
- }
- }
-
- /*
- * display last inserted text
- */
- if ((p = get_last_insert()) != NULL &&
- (arg == NULL || vim_strchr(arg, '.') != NULL))
- {
- MSG_OUTSTR("\n\". ");
- dis_msg(p, TRUE);
- }
-
- /*
- * display last command line
- */
- if (last_cmdline != NULL && (arg == NULL || vim_strchr(arg, ':') != NULL))
- {
- MSG_OUTSTR("\n\": ");
- dis_msg(last_cmdline, FALSE);
- }
-
- /*
- * display current file name
- */
- if (curbuf->b_xfilename != NULL &&
- (arg == NULL || vim_strchr(arg, '%') != NULL))
- {
- MSG_OUTSTR("\n\"% ");
- dis_msg(curbuf->b_xfilename, FALSE);
- }
- }
-
- /*
- * display a string for do_dis()
- * truncate at end of screen line
- */
- void
- dis_msg(p, skip_esc)
- char_u *p;
- int skip_esc; /* if TRUE, ignore trailing ESC */
- {
- int n;
-
- n = (int)Columns - 6;
- while (*p && !(*p == ESC && skip_esc && *(p + 1) == NUL) &&
- (n -= charsize(*p)) >= 0)
- msg_outtrans_len(p++, 1);
- }
-
- /*
- * join 'count' lines (minimal 2), including u_save()
- */
- void
- do_do_join(count, insert_space, redraw)
- long count;
- int insert_space;
- int redraw; /* can redraw, curwin->w_col valid */
- {
- if (u_save((linenr_t)(curwin->w_cursor.lnum - 1),
- (linenr_t)(curwin->w_cursor.lnum + count)) == FAIL)
- return;
-
- if (count > 10)
- redraw = FALSE; /* don't redraw each small change */
- while (--count > 0)
- {
- line_breakcheck();
- if (got_int || do_join(insert_space, redraw) == FAIL)
- {
- beep_flush();
- break;
- }
- }
- if (redraw)
- redraw_later(VALID_TO_CURSCHAR);
- else
- redraw_later(NOT_VALID);
-
- /*
- * Need to update the screen if the line where the cursor is became too
- * long to fit on the screen.
- */
- cursupdate();
- }
-
- /*
- * Join two lines at the cursor position.
- *
- * return FAIL for failure, OK ohterwise
- */
- int
- do_join(insert_space, redraw)
- int insert_space;
- int redraw; /* should only be TRUE when curwin->w_row valid */
- {
- char_u *curr;
- char_u *next;
- char_u *newp;
- int endcurr1, endcurr2;
- int currsize; /* size of the current line */
- int nextsize; /* size of the next line */
- int spaces; /* number of spaces to insert */
- int rows_to_del = 0;/* number of rows on screen to delete */
- linenr_t t;
-
- if (curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count)
- return FAIL; /* can't join on last line */
-
- if (redraw)
- rows_to_del = plines_m(curwin->w_cursor.lnum,
- curwin->w_cursor.lnum + 1);
-
- curr = ml_get_curline();
- currsize = STRLEN(curr);
- endcurr1 = endcurr2 = NUL;
- if (currsize > 0)
- {
- endcurr1 = *(curr + currsize - 1);
- if (currsize > 1)
- endcurr2 = *(curr + currsize - 2);
- }
-
- next = ml_get((linenr_t)(curwin->w_cursor.lnum + 1));
- spaces = 0;
- if (insert_space)
- {
- next = skipwhite(next);
- spaces = 1;
- if (*next == ')' || currsize == 0)
- spaces = 0;
- else
- {
- if (endcurr1 == ' ' || endcurr1 == TAB)
- {
- spaces = 0;
- if (currsize > 1)
- endcurr1 = endcurr2;
- }
- if (p_js && vim_strchr((char_u *)".!?", endcurr1) != NULL)
- spaces = 2;
- }
- }
- nextsize = STRLEN(next);
-
- newp = alloc_check((unsigned)(currsize + nextsize + spaces + 1));
- if (newp == NULL)
- return FAIL;
-
- /*
- * Insert the next line first, because we already have that pointer.
- * Curr has to be obtained again, because getting next will have
- * invalidated it.
- */
- vim_memmove(newp + currsize + spaces, next, (size_t)(nextsize + 1));
-
- curr = ml_get_curline();
- vim_memmove(newp, curr, (size_t)currsize);
-
- copy_spaces(newp + currsize, (size_t)spaces);
-
- ml_replace(curwin->w_cursor.lnum, newp, FALSE);
-
- /*
- * Delete the following line. To do this we move the cursor there
- * briefly, and then move it back. After dellines() the cursor may
- * have moved up (last line deleted), so the current lnum is kept in t.
- */
- t = curwin->w_cursor.lnum;
- ++curwin->w_cursor.lnum;
- dellines(1L, FALSE, FALSE);
- curwin->w_cursor.lnum = t;
-
- /*
- * the number of rows on the screen is reduced by the difference
- * in number of rows of the two old lines and the one new line
- */
- if (redraw)
- {
- rows_to_del -= plines(curwin->w_cursor.lnum);
- if (rows_to_del > 0)
- win_del_lines(curwin, curwin->w_cline_row + curwin->w_cline_height,
- rows_to_del, TRUE, TRUE);
- }
-
- /*
- * go to first character of the joined line
- */
- if (currsize == 0)
- curwin->w_cursor.col = 0;
- else
- {
- curwin->w_cursor.col = currsize - 1;
- (void)oneright();
- }
- CHANGED;
-
- return OK;
- }
-
- /*
- * Return TRUE if the two comment leaders given are the same. The cursor is
- * in the first line. White-space is ignored. Note that the whole of
- * 'leader1' must match 'leader2_len' characters from 'leader2' -- webb
- */
- static int
- same_leader(leader1_len, leader1_flags, leader2_len, leader2_flags)
- int leader1_len;
- char_u *leader1_flags;
- int leader2_len;
- char_u *leader2_flags;
- {
- int idx1 = 0, idx2 = 0;
- char_u *p;
- char_u *line1;
- char_u *line2;
-
- if (leader1_len == 0)
- return (leader2_len == 0);
-
- /*
- * If first leader has 'f' flag, the lines can be joined only if the
- * second line does not have a leader.
- * If first leader has 'e' flag, the lines can never be joined.
- * If fist leader has 's' flag, the lines can only be joined if there is
- * some text after it and the second line has the 'm' flag.
- */
- if (leader1_flags != NULL)
- {
- for (p = leader1_flags; *p && *p != ':'; ++p)
- {
- if (*p == COM_FIRST)
- return (leader2_len == 0);
- if (*p == COM_END)
- return FALSE;
- if (*p == COM_START)
- {
- if (*(ml_get_curline() + leader1_len) == NUL)
- return FALSE;
- if (leader2_flags == NULL || leader2_len == 0)
- return FALSE;
- for (p = leader2_flags; *p && *p != ':'; ++p)
- if (*p == COM_MIDDLE)
- return TRUE;
- return FALSE;
- }
- }
- }
-
- /*
- * Get current line and next line, compare the leaders.
- * The first line has to be saved, only one line can be locked at a time.
- */
- line1 = strsave(ml_get_curline());
- if (line1 != NULL)
- {
- for (idx1 = 0; vim_iswhite(line1[idx1]); ++idx1)
- ;
- line2 = ml_get(curwin->w_cursor.lnum + 1);
- for (idx2 = 0; idx2 < leader2_len; ++idx2)
- {
- if (!vim_iswhite(line2[idx2]))
- {
- if (line1[idx1++] != line2[idx2])
- break;
- }
- else
- while (vim_iswhite(line1[idx1]))
- ++idx1;
- }
- vim_free(line1);
- }
- return (idx2 == leader2_len && idx1 == leader1_len);
- }
-
- /*
- * implementation of the format operator 'Q'
- */
- void
- do_format()
- {
- long old_line_count = curbuf->b_ml.ml_line_count;
- int prev_is_blank = FALSE;
- int is_end_block = TRUE;
- int next_is_end_block;
- int leader_len = 0; /* init for gcc */
- int next_leader_len;
- char_u *leader_flags = NULL;
- char_u *next_leader_flags;
- int advance = TRUE;
- int second_indent = -1;
- int do_second_indent;
- int first_par_line = TRUE;
-
- if (u_save((linenr_t)(curwin->w_cursor.lnum - 1),
- (linenr_t)(curwin->w_cursor.lnum + op_line_count)) == FAIL)
- return;
-
- /* check for 'q' and '2' in 'formatoptions' */
- fo_do_comments = has_format_option(FO_Q_COMS);
- do_second_indent = has_format_option(FO_Q_SECOND);
-
- /*
- * get info about the previous and current line.
- */
- if (curwin->w_cursor.lnum > 1)
- is_end_block = fmt_end_block(curwin->w_cursor.lnum - 1,
- &next_leader_len, &next_leader_flags);
- next_is_end_block = fmt_end_block(curwin->w_cursor.lnum,
- &next_leader_len, &next_leader_flags);
-
- curwin->w_cursor.lnum--;
- while (--op_line_count >= 0)
- {
- /*
- * Advance to next block.
- */
- if (advance)
- {
- curwin->w_cursor.lnum++;
- prev_is_blank = is_end_block;
- is_end_block = next_is_end_block;
- leader_len = next_leader_len;
- leader_flags = next_leader_flags;
- }
-
- /*
- * The last line to be formatted.
- */
- if (op_line_count == 0)
- {
- next_is_end_block = TRUE;
- next_leader_len = 0;
- next_leader_flags = NULL;
- }
- else
- next_is_end_block = fmt_end_block(curwin->w_cursor.lnum + 1,
- &next_leader_len, &next_leader_flags);
- advance = TRUE;
-
- /*
- * For the first line of a paragraph, check indent of second line.
- * Don't do this for comments and empty lines.
- */
- if (first_par_line && do_second_indent &&
- prev_is_blank && !is_end_block &&
- curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count &&
- leader_len == 0 && next_leader_len == 0 &&
- !lineempty(curwin->w_cursor.lnum + 1))
- second_indent = get_indent_lnum(curwin->w_cursor.lnum + 1);
-
- /*
- * Skip end-of-block (blank) lines
- */
- if (is_end_block)
- {
- }
- /*
- * If we have got to the end of a paragraph, format it.
- */
- else if (next_is_end_block || !same_leader(leader_len, leader_flags,
- next_leader_len, next_leader_flags))
- {
- /* replace indent in first line with minimal number of tabs and
- * spaces, according to current options */
- set_indent(get_indent(), TRUE);
-
- /* put cursor on last non-space */
- coladvance(MAXCOL);
- while (curwin->w_cursor.col && vim_isspace(gchar_cursor()))
- dec_cursor();
- curs_columns(FALSE); /* update curwin->w_virtcol */
-
- /* do the formatting */
- State = INSERT; /* for Opencmd() */
- insertchar(NUL, TRUE, second_indent);
- State = NORMAL;
- first_par_line = TRUE;
- second_indent = -1;
- }
- else
- {
- /*
- * Still in same paragraph, so join the lines together.
- * But first delete the comment leader from the second line.
- */
- advance = FALSE;
- curwin->w_cursor.lnum++;
- curwin->w_cursor.col = 0;
- while (next_leader_len--)
- delchar(FALSE);
- curwin->w_cursor.lnum--;
- if (do_join(TRUE, FALSE) == FAIL)
- {
- beep_flush();
- break;
- }
- first_par_line = FALSE;
- }
- }
- fo_do_comments = FALSE;
- /*
- * Leave the cursor at the first non-blank of the last formatted line.
- * If the cursor was move one line back (e.g. with "Q}") go to the next
- * line, so "." will do the next lines.
- */
- if (op_end_adjusted && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
- ++curwin->w_cursor.lnum;
- beginline(TRUE);
- updateScreen(NOT_VALID);
- msgmore(curbuf->b_ml.ml_line_count - old_line_count);
- }
-
- /*
- * Blank lines, and lines containing only the comment leader, are left
- * untouched by the formatting. The function returns TRUE in this
- * case. It also returns TRUE when a line starts with the end of a comment
- * ('e' in comment flags), so that this line is skipped, and not joined to the
- * previous line. A new paragraph starts after a blank line, or when the
- * comment leader changes -- webb.
- */
- static int
- fmt_end_block(lnum, leader_len, leader_flags)
- linenr_t lnum;
- int *leader_len;
- char_u **leader_flags;
- {
- char_u *flags = NULL; /* init for GCC */
- char_u *ptr;
-
- ptr = ml_get(lnum);
- *leader_len = get_leader_len(ptr, leader_flags);
-
- if (*leader_len > 0)
- {
- /*
- * Search for 'e' flag in comment leader flags.
- */
- flags = *leader_flags;
- while (*flags && *flags != ':' && *flags != COM_END)
- ++flags;
- }
-
- return (ptr[*leader_len] == NUL ||
- (*leader_len > 0 && *flags == COM_END) ||
- startPS(lnum, NUL, FALSE));
- }
-
- /*
- * prepare a few things for block mode yank/delete/tilde
- *
- * for delete:
- * - textlen includes the first/last char to be (partly) deleted
- * - start/endspaces is the number of columns that are taken by the
- * first/last deleted char minus the number of columns that have to be deleted.
- * for yank and tilde:
- * - textlen includes the first/last char to be wholly yanked
- * - start/endspaces is the number of columns of the first/last yanked char
- * that are to be yanked.
- */
- static void
- block_prep(bd, lnum, is_del)
- struct block_def *bd;
- linenr_t lnum;
- int is_del;
- {
- colnr_t vcol;
- int incr = 0;
- char_u *pend;
- char_u *pstart;
-
- bd->startspaces = 0;
- bd->endspaces = 0;
- bd->textlen = 0;
- bd->textcol = 0;
- vcol = 0;
- pstart = ml_get(lnum);
- while (vcol < op_start_vcol && *pstart)
- {
- /* Count a tab for what it's worth (if list mode not on) */
- incr = lbr_chartabsize(pstart, (colnr_t)vcol);
- vcol += incr;
- ++pstart;
- ++bd->textcol;
- }
- if (vcol < op_start_vcol) /* line too short */
- {
- if (!is_del)
- bd->endspaces = op_end_vcol - op_start_vcol + 1;
- }
- else /* vcol >= op_start_vcol */
- {
- bd->startspaces = vcol - op_start_vcol;
- if (is_del && vcol > op_start_vcol)
- bd->startspaces = incr - bd->startspaces;
- pend = pstart;
- if (vcol > op_end_vcol) /* it's all in one character */
- {
- bd->startspaces = op_end_vcol - op_start_vcol + 1;
- if (is_del)
- bd->startspaces = incr - bd->startspaces;
- }
- else
- {
- while (vcol <= op_end_vcol && *pend)
- {
- /* Count a tab for what it's worth (if list mode not on) */
- incr = lbr_chartabsize(pend, (colnr_t)vcol);
- vcol += incr;
- ++pend;
- }
- if (vcol < op_end_vcol && !is_del) /* line too short */
- {
- bd->endspaces = op_end_vcol - vcol;
- }
- else if (vcol > op_end_vcol)
- {
- bd->endspaces = vcol - op_end_vcol - 1;
- if (!is_del && pend != pstart && bd->endspaces)
- --pend;
- }
- }
- if (is_del && bd->startspaces)
- {
- --pstart;
- --bd->textcol;
- }
- bd->textlen = (int)(pend - pstart);
- }
- bd->textstart = pstart;
- }
-
- #define NUMBUFLEN 30
-
- /*
- * add or subtract 'Prenum1' from a number in a line
- * 'command' is CTRL-A for add, CTRL-X for subtract
- *
- * return FAIL for failure, OK otherwise
- */
- int
- do_addsub(command, Prenum1)
- int command;
- linenr_t Prenum1;
- {
- register int col;
- char_u buf[NUMBUFLEN];
- int hex; /* 'X': hexadecimal; '0': octal */
- static int hexupper = FALSE; /* 0xABC */
- long n;
- char_u *ptr;
- int i;
- int c;
- int zeros = 0; /* number of leading zeros */
- int digits = 0; /* number of digits in the number */
-
- ptr = ml_get_curline();
- col = curwin->w_cursor.col;
-
- /* first check if we are on a hexadecimal number */
- while (col > 0 && isxdigit(ptr[col]))
- --col;
- if (col > 0 && (ptr[col] == 'X' || ptr[col] == 'x') &&
- ptr[col - 1] == '0' && isxdigit(ptr[col + 1]))
- --col; /* found hexadecimal number */
- else
- {
- /* first search forward and then backward for start of number */
- col = curwin->w_cursor.col;
-
- while (ptr[col] != NUL && !isdigit(ptr[col]))
- ++col;
-
- while (col > 0 && isdigit(ptr[col - 1]))
- --col;
- }
-
- if (isdigit(ptr[col]) && u_save_cursor() == OK)
- {
- ptr = ml_get_curline(); /* get it again, because
- u_save may have changed it */
- curwin->w_set_curswant = TRUE;
-
- hex = 0; /* default is decimal */
- if (ptr[col] == '0') /* could be hex or octal */
- {
- hex = TO_UPPER(ptr[col + 1]); /* assume hexadecimal */
- if (hex != 'X' || !isxdigit(ptr[col + 2]))
- {
- if (isdigit(hex))
- hex = '0'; /* octal */
- else
- hex = 0; /* 0 by itself is decimal */
- }
- }
-
- if (!hex && col > 0 && ptr[col - 1] == '-')
- --col;
-
- ptr += col;
- /*
- * we copy the number into a buffer because some versions of sscanf
- * cannot handle characters with the upper bit set, making some special
- * characters handled like digits.
- */
- for (i = 0; *ptr && !(*ptr & 0x80) && i < NUMBUFLEN - 1; ++i)
- buf[i] = *ptr++;
- buf[i] = NUL;
-
- if (hex == '0')
- sscanf((char *)buf, "%lo", &n);
- else if (hex)
- sscanf((char *)buf + 2, "%lx", &n); /* "%X" doesn't work! */
- else
- n = atol((char *)buf);
-
- if (command == Ctrl('A'))
- n += Prenum1;
- else
- n -= Prenum1;
-
- if (hex == 'X') /* skip the '0x' */
- col += 2;
- else if (hex == '0')
- col++; /* skip the '0' */
- curwin->w_cursor.col = col;
-
- c = gchar_cursor();
- do /* delete the old number */
- {
- if (digits == 0 && c == '0')
- ++zeros; /* count the number of leading zeros */
- else
- ++digits; /* count the number of digits */
- if (isalpha(c))
- {
- if (isupper(c))
- hexupper = TRUE;
- else
- hexupper = FALSE;
- }
- (void)delchar(FALSE);
- c = gchar_cursor();
- }
- while (hex ? (hex == '0' ? c >= '0' && c <= '7' :
- isxdigit(c)) : isdigit(c));
-
- if (hex == 0)
- sprintf((char *)buf, "%ld", n);
- else
- {
- if (hex == '0')
- sprintf((char *)buf, "%lo", n);
- else if (hex && hexupper)
- sprintf((char *)buf, "%lX", n);
- else if (hex)
- sprintf((char *)buf, "%lx", n);
- /* adjust number of zeros to the new number of digits, so the
- * total length of the number remains the same */
- if (zeros)
- {
- zeros += digits - STRLEN(buf);
- if (zeros > 0)
- {
- vim_memmove(buf + zeros, buf, STRLEN(buf) + 1);
- for (col = 0; zeros > 0; --zeros)
- buf[col++] = '0';
- }
- }
- }
- ins_str(buf); /* insert the new number */
- --curwin->w_cursor.col;
- updateline();
- return OK;
- }
- else
- {
- beep_flush();
- return FAIL;
- }
- }
-
- #ifdef VIMINFO
- int
- read_viminfo_register(line, fp, force)
- char_u *line;
- FILE *fp;
- int force;
- {
- int eof;
- int do_it = TRUE;
- int size;
- int limit;
- int i;
- int set_prev = FALSE;
- char_u *str;
- char_u **array = NULL;
-
- /* We only get here (hopefully) if line[0] == '"' */
- str = line + 1;
- if (*str == '"')
- {
- set_prev = TRUE;
- str++;
- }
- if (!isalnum(*str) && *str != '-')
- {
- if (viminfo_error("Illegal register name", line))
- return TRUE; /* too many errors, pretend end-of-file */
- do_it = FALSE;
- }
- yankbuffer = *str++;
- get_yank_buffer(FALSE);
- yankbuffer = 0;
- if (!force && y_current->y_array != NULL)
- do_it = FALSE;
- size = 0;
- limit = 100; /* Optimized for registers containing <= 100 lines */
- if (do_it)
- {
- if (set_prev)
- y_previous = y_current;
- vim_free(y_current->y_array);
- array = y_current->y_array =
- (char_u **)alloc((unsigned)(limit * sizeof(char_u *)));
- str = skipwhite(str);
- if (STRNCMP(str, "CHAR", 4) == 0)
- y_current->y_type = MCHAR;
- else if (STRNCMP(str, "BLOCK", 5) == 0)
- y_current->y_type = MBLOCK;
- else
- y_current->y_type = MLINE;
- }
- while (!(eof = vim_fgets(line, LSIZE, fp)) && line[0] == TAB)
- {
- if (do_it)
- {
- if (size >= limit)
- {
- y_current->y_array = (char_u **)
- alloc((unsigned)(limit * 2 * sizeof(char_u *)));
- for (i = 0; i < limit; i++)
- y_current->y_array[i] = array[i];
- vim_free(array);
- limit *= 2;
- array = y_current->y_array;
- }
- viminfo_readstring(line);
- str = strsave(line + 1);
- if (str != NULL)
- array[size++] = str;
- else
- do_it = FALSE;
- }
- }
- if (do_it)
- {
- if (size == 0)
- {
- vim_free(array);
- y_current->y_array = NULL;
- }
- else if (size < limit)
- {
- y_current->y_array =
- (char_u **)alloc((unsigned)(size * sizeof(char_u *)));
- for (i = 0; i < size; i++)
- y_current->y_array[i] = array[i];
- vim_free(array);
- }
- y_current->y_size = size;
- }
- return eof;
- }
-
- void
- write_viminfo_registers(fp)
- FILE *fp;
- {
- int i, j;
- char_u *type;
- char_u c;
- int num_lines;
- int max_num_lines;
-
- fprintf(fp, "\n# Registers:\n");
-
- max_num_lines = get_viminfo_parameter('"');
- if (max_num_lines == 0)
- return;
- for (i = 0; i < NUM_REGISTERS; i++)
- {
- if (y_buf[i].y_array == NULL)
- continue;
- #ifdef USE_GUI
- /* Skip '*' register, we don't want it back next time */
- if (i == GUI_SELECTION_REGISTER)
- continue;
- #endif
- switch (y_buf[i].y_type)
- {
- case MLINE:
- type = (char_u *)"LINE";
- break;
- case MCHAR:
- type = (char_u *)"CHAR";
- break;
- case MBLOCK:
- type = (char_u *)"BLOCK";
- break;
- default:
- sprintf((char *)IObuff, "Unknown register type %d",
- y_buf[i].y_type);
- emsg(IObuff);
- type = (char_u *)"LINE";
- break;
- }
- if (y_previous == &y_buf[i])
- fprintf(fp, "\"");
- if (i == DELETION_REGISTER)
- c = '-';
- else if (i < 10)
- c = '0' + i;
- else
- c = 'a' + i - 10;
- fprintf(fp, "\"%c\t%s\n", c, type);
- num_lines = y_buf[i].y_size;
-
- /* If max_num_lines < 0, then we save ALL the lines in the register */
- if (max_num_lines > 0 && num_lines > max_num_lines)
- num_lines = max_num_lines;
- for (j = 0; j < num_lines; j++)
- {
- putc('\t', fp);
- viminfo_writestring(fp, y_buf[i].y_array[j]);
- }
- }
- }
- #endif /* VIMINFO */
-
- #if defined(USE_GUI) || defined(PROTO)
- /*
- * Text selection stuff that uses the GUI selection register '*'. When using a
- * GUI this may be text from another window, otherwise it is the last text we
- * had highlighted with VIsual mode. With mouse support, clicking the middle
- * button performs the paste, otherwise you will need to do <"*p>.
- */
-
- void
- gui_free_selection()
- {
- struct yankbuf *y_ptr = y_current;
-
- y_current = &y_buf[GUI_SELECTION_REGISTER]; /* '*' register */
- free_yank_all();
- y_current->y_size = 0;
- y_current = y_ptr;
- }
-
- /*
- * Get the selected text and put it in the gui text register '*'.
- */
- void
- gui_get_selection()
- {
- struct yankbuf *old_y_previous, *old_y_current;
- char_u old_yankbuffer;
- FPOS old_cursor, old_visual;
- int old_op_type;
-
- if (gui.selection.owned)
- {
- if (y_buf[GUI_SELECTION_REGISTER].y_array != NULL)
- return;
-
- /* Get the text between gui.selection.start & gui.selection.end */
- old_y_previous = y_previous;
- old_y_current = y_current;
- old_yankbuffer = yankbuffer;
- old_cursor = curwin->w_cursor;
- old_visual = VIsual;
- old_op_type = op_type;
- yankbuffer = '*';
- op_type = YANK;
- do_pending_operator('y', NUL, FALSE, NULL, NULL, 0, TRUE, TRUE);
- y_previous = old_y_previous;
- y_current = old_y_current;
- yankbuffer = old_yankbuffer;
- curwin->w_cursor = old_cursor;
- VIsual = old_visual;
- op_type = old_op_type;
- }
- else
- {
- gui_free_selection();
-
- /* Try to get selected text from another window */
- gui_request_selection();
- }
- }
-
- /* Convert from the GUI selection string into the '*' register */
- void
- gui_yank_selection(type, str, len)
- int type;
- char_u *str;
- long_u len;
- {
- struct yankbuf *y_ptr = &y_buf[GUI_SELECTION_REGISTER]; /* '*' register */
- int lnum;
- int start;
- int i;
-
- gui_free_selection();
-
- /* Count the number of lines within the string */
- y_ptr->y_size = 1;
- for (i = 0; i < len; i++)
- if (str[i] == '\n')
- y_ptr->y_size++;
-
- if (type != MCHAR && i > 0 && str[i - 1] == '\n')
- y_ptr->y_size--;
-
- y_ptr->y_array = (char_u **)lalloc(y_ptr->y_size * sizeof(char_u *), TRUE);
- if (y_ptr->y_array == NULL)
- return;
- y_ptr->y_type = type;
- lnum = 0;
- start = 0;
- for (i = 0; i < len; i++)
- {
- if (str[i] == NUL)
- str[i] = '\n';
- else if (str[i] == '\n')
- {
- str[i] = NUL;
- if (type == MCHAR || i != len - 1)
- {
- if ((y_ptr->y_array[lnum] = strsave(str + start)) == NULL)
- {
- y_ptr->y_size = lnum;
- return;
- }
- lnum++;
- start = i + 1;
- }
- }
- }
- if ((y_ptr->y_array[lnum] = alloc(i - start + 1)) == NULL)
- return;
- if (i - start > 0)
- STRNCPY(y_ptr->y_array[lnum], str + start, i - start);
- y_ptr->y_array[lnum][i - start] = NUL;
- y_ptr->y_size = lnum + 1;
- }
-
- /*
- * Convert the '*' register into a GUI selection string returned in *str with
- * length *len.
- */
- int
- gui_convert_selection(str, len)
- char_u **str;
- long_u *len;
- {
- struct yankbuf *y_ptr = &y_buf[GUI_SELECTION_REGISTER]; /* '*' register */
- char_u *p;
- int lnum;
- int i, j;
-
- *str = NULL;
- *len = 0;
- if (y_ptr->y_array == NULL)
- return -1;
-
- for (i = 0; i < y_ptr->y_size; i++)
- *len += STRLEN(y_ptr->y_array[i]) + 1;
-
- /*
- * Don't want newline character at end of last line if we're in MCHAR mode.
- */
- if (y_ptr->y_type == MCHAR && *len > 1)
- (*len)--;
-
- p = *str = lalloc(*len, TRUE);
- if (p == NULL)
- return -1;
- lnum = 0;
- for (i = 0, j = 0; i < *len; i++, j++)
- {
- if (y_ptr->y_array[lnum][j] == '\n')
- p[i] = NUL;
- else if (y_ptr->y_array[lnum][j] == NUL)
- {
- p[i] = '\n';
- lnum++;
- j = -1;
- }
- else
- p[i] = y_ptr->y_array[lnum][j];
- }
- return y_ptr->y_type;
- }
- #endif /* USE_GUI || PROTO */
-