home *** CD-ROM | disk | FTP | other *** search
- /*
- * Copyright 1989 Object Design, Inc.
- * Copyright (c) 1985 Sun Microsystems, Inc.
- * Copyright (c) 1980 The Regents of the University of California.
- * Copyright (c) 1976 Board of Trustees of the University of Illinois.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley, the University of Illinois,
- * Urbana, and Sun Microsystems, Inc. The name of either University
- * or Sun Microsystems may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
- #ifndef lint
- # ifndef OS2
- char copyright[] =
- "@(#) Copyright 1989 Object Design, Inc.\n\
- @(#) Copyright (c) 1985 Sun Microsystems, Inc.\n\
- @(#) Copyright (c) 1980 The Regents of the University of California.\n\
- @(#) Copyright (c) 1976 Board of Trustees of the University of Illinois.\n\
- All rights reserved.\n";
-
- static char sccsid[] = "@(#)indent.c 6.0 (Berkeley) 92/06/15";
- # endif
- #endif /* not lint */
-
- #include "globals.h"
- #include "codes.h"
-
- #ifdef OS2 /* or MSDOS */
- #include <malloc.h>
- #include <stdlib.h>
- #include <process.h>
- #include <string.h>
- #include <io.h>
- #define R_OK 4
- #define INCL_NOPM
- #define INCL_NOPMAPI
- #define INCL_BASE
- #define INCL_DOSFILEMGR
- #include <os2.h>
- #define MAXPATHLEN CCHMAXPATH
- #else /* not OS/2 or MSDOS */
- #include <sys/param.h>
- #include <unistd.h>
- #endif /* BSD */
-
- #include <ctype.h>
-
- char *in_name = "Standard Input"; /* will always point to name of input file */
- char *out_name = "Standard Output"; /* will always point to name of output file */
- char bakfile[MAXPATHLEN] = "";
-
- #ifdef ANSIC
- static void bakcopy(void);
-
- #endif
-
- #ifdef ANSIC
- void main(int argc, char **argv)
- #else
- main(argc, argv)
- int argc;
- char **argv;
-
- #endif
- {
-
- extern int found_err; /* flag set in diag() on error */
- int dec_ind; /* current indentation for declarations */
- int di_stack[20]; /* a stack of structure indentation levels */
- int flushed_nl; /* used when buffering up comments to remember
- that a newline was passed over */
- int force_nl; /* when true, code must be broken */
- int hd_type; /* used to store type of stmt for if (...), for
- (...), etc */
- register int i; /* local loop counter */
- int scase; /* set to true when we see a case, so we will
- know what to do with the following colon */
- int sp_sw; /* when true, we are in the expressin of
- if(...), while(...), etc. */
- int squest; /* when this is positive, we have seen a ?
- without the matching : in a <c>?<s>:<s>
- construct */
- register char *t_ptr; /* used for copying tokens */
- int type_code; /* the type of token, returned by lexi */
-
- int last_else = 0; /* true iff last keyword was an else */
- int ch; /* answer to Y/N prompt */
-
- int just_saw_cc_cmnt = 0; /* true if // comment was just emitted
- (jrs 8jun92) */
-
- /*-----------------------------------------------*\
- | INITIALIZATION |
- \*-----------------------------------------------*/
-
-
- ps.p_stack[0] = stmt; /* this is the parser's stack */
- ps.last_nl = true; /* this is true if the last thing scanned was a
- newline */
- ps.last_token = semicolon;
- combuf = (char *) malloc(bufsize);
- labbuf = (char *) malloc(bufsize);
- codebuf = (char *) malloc(bufsize);
- l_com = combuf + bufsize - 5;
- l_lab = labbuf + bufsize - 5;
- l_code = codebuf + bufsize - 5;
- combuf[0] = codebuf[0] = labbuf[0] = ' '; /* set up code, label, and
- comment buffers */
- combuf[1] = codebuf[1] = labbuf[1] = '\0';
- ps.else_if = 1; /* Default else-if special processing to on */
- s_lab = e_lab = labbuf + 1;
- s_code = e_code = codebuf + 1;
- s_com = e_com = combuf + 1;
-
- buf_ptr = buf_end = in_buffer;
- line_no = 1;
- had_eof = ps.in_decl = ps.decl_on_line = break_comma = false;
- sp_sw = force_nl = false;
- ps.in_or_st = false;
- ps.bl_line = true;
- dec_ind = 0;
- di_stack[ps.dec_nest = 0] = 0;
- ps.want_blank = ps.in_stmt = ps.ind_stmt = false;
- ps.cc_comment = 0;
-
-
- scase = ps.pcase = false;
- squest = 0;
- sc_end = 0;
- bp_save = 0;
- be_save = 0;
-
- output = NULL;
-
-
-
- /*--------------------------------------------------*\
- | COMMAND LINE SCAN |
- \*--------------------------------------------------*/
-
- #ifdef undef
- max_col = 78; /* -l78 */
- lineup_to_parens = 1; /* -lp */
- ps.ljust_decl = 0; /* -ndj */
- ps.com_ind = 33; /* -c33 */
- star_comment_cont = 1; /* -sc */
- ps.ind_size = 8; /* -i8 */
- verbose = 0;
- ps.decl_indent = 16; /* -di16 */
- ps.indent_parameters = 1; /* -ip */
- ps.decl_com_ind = 0; /* if this is not set to some positive value by
- an arg, we will set this equal to ps.com_ind */
- btype_2 = 1; /* -br */
- btype_3 = 0; /* not -brr */
- cuddle_else = 1; /* -ce */
- ps.unindent_displace = 0; /* -d0 */
- ps.case_indent = 0; /* -cli0 */
- ps.case_code_indent = 1; /* -cci1 */
- format_col1_comments = 1; /* -fc1 */
- procnames_start_line = 1; /* -psl */
- proc_calls_space = 0; /* -npcs */
- parens_space = 0; /* -nprs */
- comment_delimiter_on_blankline = 1; /* -cdb */
- ps.leave_comma = 1; /* -nbc */
- #endif
-
- for (i = 1; i < argc; ++i)
- if (strcmp(argv[i], "-npro") == 0)
- break;
- set_defaults();
- if (i >= argc)
- set_profile();
-
- for (i = 1; i < argc; ++i)
- {
-
- /*
- look thru args (if any) for changes to defaults
- */
- if (argv[i][0] != '-')
- { /* no flag on parameter */
- if (input == NULL)
- { /* we must have the input file */
- in_name = argv[i]; /* remember name of input file */
- input = fopen(in_name, "r");
- if (input == NULL)
- { /* check for open error */
- fprintf(stderr, "indent: can't open %s\n", argv[i]);
- exit(1);
- }
- continue;
- }
- else if (output == NULL)
- { /* we have the output file */
- out_name = argv[i]; /* remember name of output file */
- if (strcmp(in_name, out_name) == 0)
- { /* attempt to overwrite the file */
- fprintf(stderr, "indent: input and output files must be different\n");
- exit(1);
- }
- if (access(out_name, R_OK) == 0)
- {
- fprintf(stderr, "Reformatting input file %s to produce output file %s\n",
- in_name, out_name);
- fprintf(stderr, "Output file %s exists; overwrite it? ", out_name);
- fflush(stderr);
- if ((ch = getchar()) != 'y' && ch != 'Y')
- {
- fprintf(stderr, "indent: can't create %s\n", argv[i]);
- exit(1);
- }
- }
- output = fopen(out_name, "w");
- if (output == NULL)
- { /* check for create error */
- fprintf(stderr, "indent: can't create %s\n", argv[i]);
- exit(1);
- }
- continue;
- }
- fprintf(stderr, "indent: unknown parameter: %s\n", argv[i]);
- exit(1);
- }
- else
- set_option(argv[i]);
- } /* end of for */
- if (input == NULL)
- {
- fprintf(stderr, "indent: usage: indent file [ outfile ] [ options ]\n");
- exit(1);
- }
- /* set -+ mode by default for .C */
- if (!cplus) /* don't bother if explicit */
- {
- char *dot;
-
- dot = in_name + strlen(in_name) - 2;
- if ((dot > in_name) && (strcmp(dot, ".C") == 0))
- set_option("-+");
- }
-
- if (output == NULL)
- if (troff)
- output = stdout;
- else
- {
- out_name = in_name;
- bakcopy();
- }
- if (ps.com_ind <= 1)
- ps.com_ind = 2; /* don't put normal comments before column 2 */
- if (troff)
- {
- if (bodyf.font[0] == 0)
- parsefont(&bodyf, "R");
- if (scomf.font[0] == 0)
- parsefont(&scomf, "I");
- if (blkcomf.font[0] == 0)
- blkcomf = scomf, blkcomf.size += 2;
- if (boxcomf.font[0] == 0)
- boxcomf = blkcomf;
- if (stringf.font[0] == 0)
- parsefont(&stringf, "L");
- if (keywordf.font[0] == 0)
- parsefont(&keywordf, "B");
- writefdef(&bodyf, 'B');
- writefdef(&scomf, 'C');
- writefdef(&blkcomf, 'L');
- writefdef(&boxcomf, 'X');
- writefdef(&stringf, 'S');
- writefdef(&keywordf, 'K');
- }
- if (block_comment_max_col <= 0)
- block_comment_max_col = max_col;
- if (ps.decl_com_ind <= 0) /* if not specified by user, set this */
- ps.decl_com_ind = ps.ljust_decl ? (ps.com_ind <= 10 ? 2 : ps.com_ind - 8) : ps.com_ind;
- if (continuation_indent == 0)
- continuation_indent = ps.ind_size;
-
- if (tabsize <= 2) /* If tab spacing is unreasonably small */
- tabsize = 2; /* force indent to use spaces instead. */
- /* pad_output() will test this value. */
-
- fill_buffer(); /* get first batch of stuff into input buffer */
-
- parse(semicolon);
- {
- register char *p = buf_ptr;
- register col = 1;
-
- while (1)
- {
- if (*p == ' ')
- col++;
- else if (*p == '\t')
- col += (tabsize - ((col - 1) % tabsize)); /* JHT 22oct89 */
- else
- break;
- p++;
- };
- if (col > ps.ind_size)
- ps.ind_level = ps.i_l_follow = col / ps.ind_size;
- }
- if (troff)
- {
- register char *p = in_name, *beg = in_name;
-
- while (*p)
- if (*p++ == '/')
- beg = p;
- fprintf(output, ".Fn \"%s\"\n", beg);
- }
- /*
- START OF MAIN LOOP
- */
-
- while (1)
- { /* this is the main loop. it will go until we
- reach eof */
- int is_procname;
-
- type_code = lexi(); /* lexi reads one token. The actual characters
- read are stored in "token". lexi returns a
- code indicating the type of token */
- is_procname = ps.procname[0];
-
- /*
- The following code moves everything following an if (), while (),
- else, etc. up to the start of the following stmt to a buffer. This
- allows proper handling of both kinds of brace placement.
- */
-
- flushed_nl = false;
- while (ps.search_brace)
- { /* if we scanned an if(), while(), etc., we
- might need to copy stuff into a buffer we
- must loop, copying stuff into save_com,
- until we find the start of the stmt which
- follows the if, or whatever */
- switch (type_code)
- {
- case newline:
- ++line_no;
- flushed_nl = true;
- case form_feed:
- break; /* form feeds and newlines found here will be
- ignored */
-
- case lbrace: /* this is a brace that starts the compound
- stmt */
- if (sc_end == 0)
- { /* ignore buffering if a comment wasn't stored
- up */
- ps.search_brace = false;
- goto check_type;
- }
- /* if (btype_2) Bug notified by Steve Comen, 16 Mar 92 */
- {
- save_com[0] = '{'; /* we either want to put the brace
- right after the if */
- goto sw_buffer; /* go to common code to get out of this
- loop */
- }
- case comment: /* we have a comment, so we must copy it into
- the buffer */
- if (!flushed_nl || sc_end != 0)
- {
- if (sc_end == 0)
- { /* if this is the first comment, we must set up
- the buffer */
- save_com[0] = save_com[1] = ' ';
- sc_end = &(save_com[2]);
- }
- else
- {
- *sc_end++ = '\n'; /* add newline between comments */
- *sc_end++ = ' ';
- --line_no;
- }
- *sc_end++ = '/'; /* copy in start of comment */
- *sc_end++ = '*';
-
- for (;;)
- { /* loop until we get to the end of the comment */
- *sc_end = *buf_ptr++;
- if (buf_ptr >= buf_end)
- fill_buffer();
-
- if (*sc_end++ == '*' && *buf_ptr == '/')
- break; /* we are at end of comment */
-
- if (sc_end >= &(save_com[sc_size]))
- { /* check for temp buffer overflow */
- diag(1, "Internal buffer overflow - Move big comment from right after if, while, or whatever.");
- fflush(output);
- exit(1);
- }
- }
- *sc_end++ = '/'; /* add ending slash */
- if (++buf_ptr >= buf_end) /* get past / in buffer */
- fill_buffer();
- break;
- }
- case cc_commnt: /* we have a comment, so we must copy it into
- the buffer */
- /* C++ comment */
- if (!flushed_nl || sc_end != 0)
- {
- if (sc_end == 0)
- { /* if this is the first comment, we must set up
- the buffer */
- save_com[0] = save_com[1] = ' ';
- sc_end = &(save_com[2]);
- }
- else
- {
- *sc_end++ = '\n'; /* add newline between comments */
- *sc_end++ = ' ';
- --line_no;
- }
- *sc_end++ = '/'; /* copy in start of comment */
- *sc_end++ = '/';
-
- for (;;)
- { /* loop until we get to the end of the comment */
- *sc_end++ = *buf_ptr++;
- if (buf_ptr >= buf_end)
- fill_buffer();
-
- if (*buf_ptr == '\n')
- break; /* we are at end of comment */
-
- if (sc_end >= &(save_com[sc_size]))
- { /* check for temp buffer overflow */
- diag(1, "Internal buffer overflow - Move big comment from right after if, while, or whatever.");
- fflush(output);
- exit(1);
- }
- }
- if (++buf_ptr >= buf_end) /* eat '\n' */
- fill_buffer();
- break;
- }
- default: /* it is the start of a normal statment */
- if (flushed_nl) /* if we flushed a newline, make sure it is put
- back */
- force_nl = true;
- if (type_code == sp_paren && *token == 'i'
- && last_else && ps.else_if
- || type_code == sp_nparen && *token == 'e'
- && e_code != s_code && e_code[-1] == '}')
- force_nl = false;
-
- if (just_saw_cc_cmnt) /* jrs 8jun92 */
- { /* jrs 8jun92 */
- force_nl = true; /* jrs 8jun92 */
- just_saw_cc_cmnt = false; /* jrs 8jun92 */
- } /* jrs 8jun92 */
-
- if (sc_end == 0)
- { /* ignore buffering if comment wasnt saved up */
- ps.search_brace = false;
- goto check_type;
- }
- if (force_nl)
- { /* if we should insert a nl here, put it into
- the buffer */
- force_nl = false;
- --line_no; /* this will be re-increased when the nl is
- read from the buffer */
- *sc_end++ = '\n';
- *sc_end++ = ' ';
- if (verbose && !flushed_nl) /* print error msg if the line
- was not already broken */
- diag(0, "Line broken");
- flushed_nl = false;
- }
- for (t_ptr = token; *t_ptr; ++t_ptr)
- *sc_end++ = *t_ptr; /* copy token into temp buffer */
- ps.procname[0] = 0;
-
- sw_buffer:
- ps.search_brace = false; /* stop looking for start of stmt */
- bp_save = buf_ptr; /* save current input buffer */
- be_save = buf_end;
- buf_ptr = save_com; /* fix so that subsequent calls to lexi
- will take tokens out of save_com */
- *sc_end++ = ' ';/* add trailing blank, just in case */
- buf_end = sc_end;
- sc_end = 0;
- break;
- } /* end of switch */
-
- just_saw_cc_cmnt = type_code == cc_commnt; /* jrs 8jun92 */
-
- if (type_code != 0) /* we must make this check, just in case there
- was an unexpected EOF */
- type_code = lexi(); /* read another token */
- /* if (ps.search_brace) ps.procname[0] = 0; */
- if ((is_procname = ps.procname[0]) && flushed_nl
- && !procnames_start_line && ps.in_decl
- && type_code == ident)
- flushed_nl = 0;
- } /* end of while (search_brace) */
- last_else = 0;
- check_type:
- if (type_code == 0)
- { /* we got eof */
- if (s_lab != e_lab || s_code != e_code
- || s_com != e_com) /* must dump end of line */
- dump_line();
- if (ps.tos > 1) /* check for balanced braces */
- diag(1, "Stuff missing from end of file.");
-
- if (verbose)
- {
- printf("There were %d output lines and %d comments\n",
- ps.out_lines, ps.out_coms);
- printf("(Lines with comments)/(Lines with code): %6.3f\n",
- (1.0 * ps.com_lines) / code_lines);
- }
- fflush(output);
- exit(found_err);
- }
- if (
- (type_code != comment) &&
- (type_code != cc_commnt) &&
- (type_code != newline) &&
- (type_code != preesc) &&
- (type_code != form_feed))
- {
- if (force_nl &&
- (type_code != semicolon) &&
- (type_code != lbrace || btype_3 || !btype_2))
- {
- /* we should force a broken line here */
- if (verbose && !flushed_nl)
- diag(0, "Line broken");
- flushed_nl = false;
- dump_line();
- ps.want_blank = false; /* dont insert blank at line start */
- force_nl = false;
- }
- ps.in_stmt = true; /* turn on flag which causes an extra level of
- indentation. this is turned off by a ; or
- '}' */
- if (s_com != e_com)
- { /* the turkey has embedded a comment in a line.
- fix it */
- *e_code++ = ' ';
- for (t_ptr = s_com; *t_ptr; ++t_ptr)
- {
- check_size(code);
- *e_code++ = *t_ptr;
- }
- *e_code++ = ' ';
- *e_code = '\0'; /* null terminate code sect */
- ps.want_blank = false;
- e_com = s_com;
- }
- }
- else if (type_code != comment && type_code != cc_commnt)
- /* preserve force_nl thru a comment */
- force_nl = false; /* cancel forced newline after newline, form
- feed, etc */
-
-
-
- /*-----------------------------------------------------*\
- | do switch on type of token scanned |
- \*-----------------------------------------------------*/
-
- check_size(code);
- switch (type_code)
- { /* now, decide what to do with the token */
-
- case form_feed: /* found a form feed in line */
- ps.use_ff = true; /* a form feed is treated much like a newline */
- dump_line();
- ps.want_blank = false;
- break;
-
- case newline:
- if (ps.last_token != comma || ps.p_l_follow > 0
- || !ps.leave_comma || ps.block_init || !break_comma || s_com != e_com)
- {
- dump_line();
- ps.want_blank = false;
- }
- ++line_no; /* keep track of input line number */
- break;
-
- case lparen: /* got a '(' or '[' */
- ++ps.p_l_follow; /* count parens to make Healy happy */
- if (ps.want_blank && *token != '[' &&
- (ps.last_token != ident || proc_calls_space
- || (ps.its_a_keyword && (!ps.sizeof_keyword || Bill_Shannon))))
- *e_code++ = ' ';
- if (ps.in_decl && !ps.block_init)
- if (troff && !ps.dumped_decl_indent && !is_procname && ps.last_token == decl)
- {
- ps.dumped_decl_indent = 1;
- sprintf(e_code, "\n.Du %dp+\200p \"%s\"\n", dec_ind * 7, token);
- e_code += strlen(e_code);
- }
- else
- {
- while ((e_code - s_code) < dec_ind)
- {
- check_size(code);
- *e_code++ = ' ';
- }
- *e_code++ = token[0];
- }
- else
- *e_code++ = token[0];
- if (parens_space && *token != '[')
- *e_code++ = ' ';
- ps.paren_indents[ps.p_l_follow - 1] = (short) (e_code - s_code);
- if (sp_sw && ps.p_l_follow == 1 && extra_expression_indent
- && ps.paren_indents[0] < (short) (2 * ps.ind_size))
- ps.paren_indents[0] = (short) (2 * ps.ind_size);
- ps.want_blank = false;
- if (ps.in_or_st && *token == '(' && ps.tos <= 2)
- {
- /*
- this is a kluge to make sure that declarations will be
- aligned right if proc decl has an explicit type on it, i.e.
- "int a(x) {..."
- */
- parse(semicolon); /* I said this was a kluge... */
- ps.in_or_st = false; /* turn off flag for structure decl or
- initialization */
- }
- if (ps.sizeof_keyword)
- ps.sizeof_mask |= 1 << ps.p_l_follow;
- break;
-
- case rparen: /* got a ')' or ']' */
- if (ps.cast_mask & (1 << ps.p_l_follow) & ~ps.sizeof_mask)
- {
- ps.last_u_d = true;
- ps.cast_mask &= (1 << ps.p_l_follow) - 1;
- }
- ps.sizeof_mask &= (1 << ps.p_l_follow) - 1;
- if (--ps.p_l_follow < 0)
- {
- ps.p_l_follow = 0;
- diag(0, "Extra %c", *token);
- }
- if (e_code == s_code) /* if the paren starts the line */
- ps.paren_level = ps.p_l_follow; /* then indent it */
-
- if (parens_space && *token != ']')
- *e_code++ = ' ';
- *e_code++ = token[0];
- ps.want_blank = true;
-
- if (sp_sw && (ps.p_l_follow == 0))
- { /* check for end of if (...), or some such */
- sp_sw = false;
- force_nl = true;/* must force newline after if */
- ps.last_u_d = true; /* inform lexi that a following operator is
- unary */
- ps.in_stmt = false; /* dont use stmt continuation indentation */
-
- parse(hd_type); /* let parser worry about if, or whatever */
- }
- ps.search_brace = btype_2 && !btype_3;
- /*
- this should insure that constructs such as main(){...} and
- int[]{...} have their braces put in the right place
- */
- break;
-
- case unary_op: /* this could be any unary operation */
- if (ps.want_blank)
- *e_code++ = ' ';
-
- if (troff && !ps.dumped_decl_indent && ps.in_decl && !is_procname)
- {
- sprintf(e_code, "\n.Du %dp+\200p \"%s\"\n", dec_ind * 7, token);
- ps.dumped_decl_indent = 1;
- e_code += strlen(e_code);
- }
- else
- {
- char *res = token;
-
- if (ps.in_decl && !ps.block_init)
- { /* if this is a unary op in a declaration, we
- should indent this token */
- for (i = 0; token[i]; ++i); /* find length of token */
- while ((e_code - s_code) < (dec_ind - i))
- {
- check_size(code);
- *e_code++ = ' '; /* pad it */
- }
- }
- if (troff && token[0] == '-' && token[1] == '>')
- res = "\\(->";
- for (t_ptr = res; *t_ptr; ++t_ptr)
- {
- check_size(code);
- *e_code++ = *t_ptr;
- }
- }
- ps.want_blank = false;
- break;
-
- case binary_op: /* any binary operation */
-
- if (ps.want_blank)
- *e_code++ = ' ';
- {
- char *res = token;
-
- if (troff)
- switch (token[0])
- {
- case '<':
- if (token[1] == '=')
- res = "\\(<=";
- break;
- case '>':
- if (token[1] == '=')
- res = "\\(>=";
- break;
- case '!':
- if (token[1] == '=')
- res = "\\(!=";
- break;
- case '|':
- if (token[1] == '|')
- res = "\\(br\\(br";
- else if (token[1] == 0)
- res = "\\(br";
- break;
- }
- for (t_ptr = res; *t_ptr; ++t_ptr)
- {
- check_size(code);
- *e_code++ = *t_ptr; /* move the operator */
- }
- }
- ps.want_blank = true;
- break;
-
- case postop: /* got a trailing ++ or -- */
- *e_code++ = token[0];
- *e_code++ = token[1];
- ps.want_blank = true;
- break;
-
- case question: /* got a ? */
- squest++; /* this will be used when a later colon appears
- so we can distinguish the <c>?<n>:<n>
- construct */
- if (ps.want_blank)
- *e_code++ = ' ';
- *e_code++ = '?';
- ps.want_blank = true;
- break;
-
- case casestmt: /* got word 'case' or 'default' */
- scase = true; /* so we can process the later colon properly */
- goto copy_id;
-
- case privpub: /* got public, private or protected */
- strcpy(s_lab, token);
- e_lab = s_lab + strlen(token);
- *e_lab++ = ':';
- *e_lab++ = ' ';
- *e_lab = '\0';
- force_nl = true;
- break;
-
- case colon: /* got a ':' */
- if (squest > 0)
- { /* it is part of the <c>?<n>: <n> construct */
- --squest;
- if (ps.want_blank)
- *e_code++ = ' ';
- *e_code++ = ':';
- ps.want_blank = true;
- break;
- }
- if (ps.in_decl)
- {
- if (cplus) /* assume public, private, or protected */
- {
- for (t_ptr = s_code; *t_ptr; ++t_ptr)
- *e_lab++ = *t_ptr; /* turn everything so far into a
- label */
- e_code = s_code;
- *e_lab++ = ':';
- *e_lab++ = ' ';
- *e_lab = '\0';
- force_nl = true;
- scase = false;
- ps.pcase = true;
- break;
- }
- *e_code++ = ':';
- ps.want_blank = false;
- break;
- }
- ps.in_stmt = false; /* seeing a label does not imply we are in a
- stmt */
- for (t_ptr = s_code; *t_ptr; ++t_ptr)
- *e_lab++ = *t_ptr; /* turn everything so far into a label */
- e_code = s_code;
- *e_lab++ = ':';
- *e_lab++ = ' ';
- *e_lab = '\0';
-
- force_nl = ps.pcase = scase; /* ps.pcase will be used by dump_line
- to decide how to indent the label.
- force_nl will force a case n: to
- be on a line by itself */
- scase = false;
- ps.want_blank = false;
- break;
-
- case semicolon: /* got a ';' */
- ps.in_or_st = false;/* we are not in an initialization or structure
- declaration */
- scase = false; /* these will only need resetting in a error */
- squest = 0;
- if (ps.last_token == rparen)
- ps.in_parameter_declaration = 0;
- ps.cast_mask = 0;
- ps.sizeof_mask = 0;
- ps.block_init = 0;
- ps.block_init_level = 0;
- ps.just_saw_decl--;
-
- if (ps.in_decl && s_code == e_code && !ps.block_init)
- while ((e_code - s_code) < (dec_ind - 1))
- {
- check_size(code);
- *e_code++ = ' ';
- }
-
- ps.in_decl = (ps.dec_nest > 0); /* if we were in a first level
- structure declaration, we arent
- any more */
-
- if ((!sp_sw || hd_type != forstmt) && ps.p_l_follow > 0)
- {
-
- /*
- This should be true iff there were unbalanced parens in the
- stmt. It is a bit complicated, because the semicolon might
- be in a for stmt
- */
- diag(1, "Unbalanced parens");
- ps.p_l_follow = 0;
- if (sp_sw)
- { /* this is a check for a if, while, etc. with
- unbalanced parens */
- sp_sw = false;
- parse(hd_type); /* dont lose the if, or whatever */
- }
- }
- *e_code++ = ';';
- ps.want_blank = true;
- ps.in_stmt = (ps.p_l_follow > 0); /* we are no longer in the middle
- of a stmt */
-
- if (!sp_sw)
- { /* if not if for (;;) */
- parse(semicolon); /* let parser know about end of stmt */
- force_nl = true;/* force newline after a end of stmt */
- }
- break;
-
- case lbrace: /* got a '{' */
- ps.in_stmt = false; /* dont indent the {} */
- if (!ps.block_init)
- force_nl = true;/* force other stuff on same line as '{' onto
- new line */
- else if (ps.block_init_level <= 0)
- ps.block_init_level = 1;
- else
- ps.block_init_level++;
-
- if (s_code != e_code && !ps.block_init)
- {
- if (btype_3 || !btype_2)
- {
- dump_line();
- ps.want_blank = false;
- }
- else if (ps.in_parameter_declaration && !ps.in_or_st)
- {
- ps.i_l_follow = 0;
- dump_line();
- ps.want_blank = false;
- }
- }
- if (ps.in_parameter_declaration)
- prefix_blankline_requested = 0;
-
- if (ps.p_l_follow > 0)
- { /* check for preceeding unbalanced parens */
- diag(1, "Unbalanced parens");
- ps.p_l_follow = 0;
- if (sp_sw)
- { /* check for unclosed if, for, etc. */
- sp_sw = false;
- parse(hd_type);
- ps.ind_level = ps.i_l_follow;
- }
- }
- if (btype_3)
- ps.ind_stmt = true;
- else if (s_code == e_code)
- ps.ind_stmt = false; /* dont put extra indentation on line
- with '{' */
- if (ps.in_decl && ps.in_or_st)
- { /* this is either a structure declaration or an
- init */
- di_stack[ps.dec_nest++] = dec_ind;
- /* ? dec_ind = 0; */
- }
- else
- {
- ps.decl_on_line = false; /* we cant be in the middle of a
- declaration, so dont do special
- indentation of comments */
- if (blanklines_after_declarations_at_proctop
- && ps.in_parameter_declaration)
- postfix_blankline_requested = 1;
- ps.in_parameter_declaration = 0;
- }
- dec_ind = 0;
- parse(lbrace); /* let parser know about this */
- if (ps.want_blank) /* put a blank before '{' if '{' is not at
- start of line */
- *e_code++ = ' ';
- ps.want_blank = false;
- *e_code++ = '{';
- ps.just_saw_decl = 0;
- break;
-
- case rbrace: /* got a '}' */
- if (ps.p_stack[ps.tos] == decl && !ps.block_init) /* semicolons can be
- omitted in
- declarations */
- parse(semicolon);
- if (ps.p_l_follow)
- { /* check for unclosed if, for, else. */
- diag(1, "Unbalanced parens");
- ps.p_l_follow = 0;
- sp_sw = false;
- }
- ps.just_saw_decl = 0;
- ps.block_init_level--;
- if (s_code != e_code && !ps.block_init)
- { /* '}' must be first on line */
- if (verbose)
- diag(0, "Line broken");
- dump_line();
- }
- *e_code++ = '}';
- ps.want_blank = true;
- ps.in_stmt = ps.ind_stmt = false;
- if (ps.dec_nest > 0)
- { /* we are in multi-level structure declaration */
- dec_ind = di_stack[--ps.dec_nest];
- if (ps.dec_nest == 0 && !ps.in_parameter_declaration)
- ps.just_saw_decl = 2;
- ps.in_decl = true;
- }
- prefix_blankline_requested = 0;
- parse(rbrace); /* let parser know about this */
- ps.search_brace = cuddle_else && ps.p_stack[ps.tos] == ifhead
- && ps.il[ps.tos] >= ps.ind_level;
- if (ps.tos <= 1 && blanklines_after_procs && ps.dec_nest <= 0)
- postfix_blankline_requested = 1;
- if (btype_3 && ps.p_stack[ps.tos] == dohead)
- {
- if (verbose)
- diag(0, "Line broken");
- dump_line();
- ps.want_blank = false;
- }
- break;
-
- case swstmt: /* got keyword "switch" */
- sp_sw = true;
- hd_type = swstmt; /* keep this for when we have seen the
- expression */
- goto copy_id; /* go move the token into buffer */
-
- case sp_paren: /* token is if, while, for */
- sp_sw = true; /* the interesting stuff is done after the
- expression is scanned */
- hd_type = (*token == 'i' ? ifstmt :
- (*token == 'w' ? whilestmt : forstmt));
-
- /*
- remember the type of header for later use by parser
- */
- goto copy_id; /* copy the token into line */
-
- case sp_nparen: /* got else, do */
- ps.in_stmt = false;
- if (*token == 'e')
- {
- if (e_code != s_code && (!cuddle_else || e_code[-1] != '}'))
- {
- if (verbose)
- diag(0, "Line broken");
- dump_line();/* make sure this starts a line */
- ps.want_blank = false;
- }
- force_nl = true;/* also, following stuff must go onto new line */
- last_else = 1;
- parse(elselit);
- }
- else
- {
- if (e_code != s_code)
- { /* make sure this starts a line */
- if (verbose)
- diag(0, "Line broken");
- dump_line();
- ps.want_blank = false;
- }
- force_nl = true;/* also, following stuff must go onto new line */
- last_else = 0;
- parse(dolit);
- }
- goto copy_id; /* move the token into line */
-
- case decl: /* we have a declaration type (int, register,
- etc.) */
- parse(decl); /* let parser worry about indentation */
- if (ps.last_token == rparen && ps.tos <= 1)
- {
- ps.in_parameter_declaration = 1;
- if (s_code != e_code)
- {
- dump_line();
- ps.want_blank = 0;
- }
- }
- if (ps.in_parameter_declaration && ps.indent_parameters && ps.dec_nest == 0)
- {
- ps.ind_level = ps.i_l_follow = 1;
- ps.ind_stmt = 0;
- }
- ps.in_or_st = true; /* this might be a structure or initialization
- declaration */
- ps.in_decl = ps.decl_on_line = true;
- if ( /* !ps.in_or_st && */ ps.dec_nest <= 0)
- ps.just_saw_decl = 2;
- prefix_blankline_requested = 0;
- for (i = 0; token[i++];); /* get length of token */
-
- /*
- dec_ind = e_code - s_code + (ps.decl_indent>i ? ps.decl_indent :
- i);
- */
- dec_ind = ps.decl_indent > 0 ? ps.decl_indent : i;
- goto copy_id;
-
- case ident: /* got an identifier or constant */
- if (ps.in_decl)
- { /* if we are in a declaration, we must indent
- identifier */
- if (ps.want_blank)
- *e_code++ = ' ';
- ps.want_blank = false;
- if (is_procname == 0 || !procnames_start_line)
- {
- if (!ps.block_init)
- if (troff && !ps.dumped_decl_indent)
- {
- sprintf(e_code, "\n.De %dp+\200p\n", dec_ind * 7);
- ps.dumped_decl_indent = 1;
- e_code += strlen(e_code);
- }
- else
- while ((e_code - s_code) < dec_ind)
- {
- check_size(code);
- *e_code++ = ' ';
- }
- }
- else
- {
- if (dec_ind && s_code != e_code)
- dump_line();
- dec_ind = 0;
- ps.want_blank = false;
- }
- }
- else if (sp_sw && ps.p_l_follow == 0)
- {
- sp_sw = false;
- force_nl = true;
- ps.last_u_d = true;
- ps.in_stmt = false;
- parse(hd_type);
- }
- copy_id:
- if (ps.want_blank)
- *e_code++ = ' ';
- if (troff && ps.its_a_keyword)
- {
- e_code = chfont(&bodyf, &keywordf, e_code);
- for (t_ptr = token; *t_ptr; ++t_ptr)
- {
- check_size(code);
- *e_code++ = keywordf.allcaps && islower(*t_ptr)
- ? (char) toupper(*t_ptr) : *t_ptr;
- }
- e_code = chfont(&keywordf, &bodyf, e_code);
- }
- else
- for (t_ptr = token; *t_ptr; ++t_ptr)
- {
- check_size(code);
- *e_code++ = *t_ptr;
- }
- ps.want_blank = true;
- break;
-
- case period: /* treat a period kind of like a binary
- operation */
- *e_code++ = '.'; /* move the period into line */
- ps.want_blank = false; /* dont put a blank after a period */
- break;
-
- case comma:
- ps.want_blank = (s_code != e_code); /* only put blank after comma
- if comma does not start the
- line */
- if (ps.in_decl && is_procname == 0 && !ps.block_init)
- while ((e_code - s_code) < (dec_ind - 1))
- {
- check_size(code);
- *e_code++ = ' ';
- }
-
- *e_code++ = ',';
- if (ps.p_l_follow == 0)
- {
- if (ps.block_init_level <= 0)
- ps.block_init = 0;
- if (break_comma && !ps.leave_comma)
- force_nl = true;
- }
- break;
-
- case preesc: /* got the character '#' */
- if ((s_com != e_com) ||
- (s_lab != e_lab) ||
- (s_code != e_code))
- dump_line();
- *e_lab++ = '#'; /* move whole line to 'label' buffer */
- {
- int in_comment = 0;
- int com_start = 0;
- char quote = 0;
- int com_end = 0;
-
- while (*buf_ptr != '\n' || in_comment)
- {
- check_size(lab);
- *e_lab = *buf_ptr++;
- if (buf_ptr >= buf_end)
- fill_buffer();
- switch (*e_lab++)
- {
- case BACKSLASH:
- if (troff)
- *e_lab++ = BACKSLASH;
- if (!in_comment)
- {
- *e_lab++ = *buf_ptr++;
- if (buf_ptr >= buf_end)
- fill_buffer();
- }
- break;
- case '/':
- if (*buf_ptr == '*' && !in_comment && !quote)
- {
- in_comment = 1;
- *e_lab++ = *buf_ptr++;
- com_start = e_lab - s_lab - 2;
- }
- else if (*buf_ptr == '/' && !in_comment && !quote)
- {
- in_comment = 2;
- *e_lab++ = *buf_ptr++;
- com_start = e_lab - s_lab - 2;
- }
- break;
- case '"':
- if (quote == '"')
- quote = 0;
- break;
- case '\'':
- if (quote == '\'')
- quote = 0;
- break;
- case '*':
- if (*buf_ptr == '/' && in_comment == 1)
- {
- in_comment = 0;
- *e_lab++ = *buf_ptr++;
- com_end = e_lab - s_lab;
- }
- break;
- case '\n':
- if (in_comment == 2)
- {
- in_comment = 0;
- --buf_ptr; /* so while loop will exit */
- com_end = e_lab - s_lab;
- }
- break;
- }
- }
-
- while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
- e_lab--;
- if (e_lab - s_lab == com_end && bp_save == 0)
- { /* comment on preprocessor line */
- if (sc_end == 0) /* if this is the first comment, we must
- set up the buffer */
- sc_end = &(save_com[0]);
- else
- {
- *sc_end++ = '\n'; /* add newline between comments */
- *sc_end++ = ' ';
- --line_no;
- }
- #ifdef BSD /* gst 24 Mar 89 */
- bcopy(s_lab + com_start, sc_end, com_end - com_start);
- #else
- memcpy(sc_end, s_lab + com_start, com_end - com_start);
- #endif
- sc_end += com_end - com_start;
- if (sc_end >= &save_com[sc_size])
- abort();
- e_lab = s_lab + com_start;
- while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
- e_lab--;
- bp_save = buf_ptr; /* save current input buffer */
- be_save = buf_end;
- buf_ptr = save_com; /* fix so that subsequent calls to lexi
- will take tokens out of save_com */
- *sc_end++ = ' '; /* add trailing blank, just in case */
- buf_end = sc_end;
- sc_end = 0;
- }
- *e_lab = '\0'; /* null terminate line */
- ps.pcase = false;
- }
-
- if (strncmp(s_lab, "#if", 3) == 0)
- {
- if (blanklines_around_conditional_compilation)
- {
- register c;
-
- prefix_blankline_requested++;
- while ((c = getc(input)) == '\n');
- ungetc(c, input);
- }
- if (ifdef_level < sizeof state_stack / sizeof state_stack[0])
- {
- match_state[ifdef_level].tos = -1;
- state_stack[ifdef_level++] = ps;
- }
- else
- diag(1, "#if stack overflow");
- }
- else if (strncmp(s_lab, "#else", 5) == 0)
- if (ifdef_level <= 0)
- diag(1, "Unmatched #else");
- else
- {
- match_state[ifdef_level - 1] = ps;
- ps = state_stack[ifdef_level - 1];
- }
- else if (strncmp(s_lab, "#endif", 6) == 0)
- {
- if (ifdef_level <= 0)
- diag(1, "Unmatched #endif");
- else
- {
- ifdef_level--;
-
- #ifdef undef
- /*
- This match needs to be more intelligent before the
- message is useful
- */
- if (match_state[ifdef_level].tos >= 0
- && bcmp(&ps, &match_state[ifdef_level], sizeof ps))
- diag(0, "Syntactically inconsistent #ifdef alternatives.");
- #endif
- }
- if (blanklines_around_conditional_compilation)
- {
- postfix_blankline_requested++;
- n_real_blanklines = 0;
- }
- }
- break; /* subsequent processing of the newline
- character will cause the line to be printed */
-
- case cc_commnt: /* we have gotten a // this is a biggie */
- case comment: /* we have gotten a /* this is a biggie */
-
- if (flushed_nl)
- { /* we should force a broken line here */
- flushed_nl = false;
- dump_line();
- ps.want_blank = false; /* dont insert blank at line start */
- force_nl = false;
- }
- pr_comment();
- /*
- pr_comment()'s parsing sequence for a C++ comment is quite
- different from that for a standard comment. Without the
- following test a C++ comment causes the next line to be
- formatted with an extra blank space before the code or to be
- preceded by an extra blank line. jrs 12 mar 92
-
- (I haven't checked, but there's a good chance that fixing
- the abovementioned bug introduced another one. For a while,
- indent would swallow the next statement after a sequence
- such as } // this type of comment. jrs 15jun92)
- */
- if (type_code == cc_commnt) /* jrs 12 Mar 92 */
- force_nl = ps.want_blank = false; /* jrs 12 Mar 92 */
- break;
- } /* end of big switch stmt */
-
- *e_code = '\0'; /* make sure code section is null terminated */
- if (type_code != comment && type_code != newline && type_code != preesc && type_code != cc_commnt)
- ps.last_token = type_code;
- } /* end of main while (1) loop */
- }
-
- /*
- * copy input file to backup file if in_name is /blah/blah/blah/file, then
- * backup file will be ".Bfile" then make the backup file the input and
- * original input file the output
- */
- #ifdef ANSIC
- static void bakcopy(void)
- #else
- bakcopy()
- #endif
- {
- #ifdef OS2
- int fat = 0; /* File system type = FAT? */
- char *q;
-
- #endif
- int n, bakchn;
-
- /* char buff[8 * 1024]; Ouch! Such a big stack!
- Let's allocate a buffer from the heap instead .... jrs 12 Mar 92 */
-
- char *buff;
-
- # define COPY_BUFFER_SIZE 8*1024
- register char *p;
-
- if ((buff = (char *) malloc(COPY_BUFFER_SIZE)) == NULL)
- {
- fprintf(stderr, "indent: no memory for backup file copy buffer");
- exit(1);
- }
-
- /* construct file name .Bfile */
-
- #ifdef OS2 /* or MSDOS */
- # ifndef __32BIT__ /* then must be OS/2 1.x or MSDOS */
- # define DosQueryFSAttach(a,b,c,d,e) DosQFSAttach(a,b,c,(BYTE *)d,e,0L)
- # define DosQueryCurrentDisk DosQCurDisk
- # define PARAM_T USHORT
-
- DosGetMachineMode(&buff[0]);
- if (buff[0] == MODE_REAL) /* DOS can only handle FAT */
- fat = 1;
- # else
- # define PARAM_T ULONG
- # endif
-
- if (!fat)
- {
- PARAM_T DriveNumber, cbData;
- ULONG DriveMap;
- struct fsqb
- {
- # ifdef __32BIT__
- FSQBUFFER2 bData;
- # else
- FSQBUFFER bData;
- # endif
- BYTE filler[60];
- }
- fsq;
-
- cbData = sizeof fsq;
- if (isalpha(in_name[0]) && in_name[1] == ':')
- DriveNumber = toupper(in_name[0]) - '@';
- else
- DosQueryCurrentDisk(&DriveNumber, &DriveMap);
-
- if (DosQueryFSAttach(NULL, DriveNumber, FSAIL_DRVNUMBER,
- &fsq.bData, &cbData))
- fat = 0;
- else
- fat = !strcmp(&fsq.bData.szFSDName[fsq.bData.cbName], "FAT");
- }
-
- for (p = strcpy(bakfile, in_name); *p; ++p); /* skip to end of string */
- while (p > bakfile && *p != '/' && *p != '\\')
- p--;
- if (*p == '/' || *p == '\\')
- p++;
- if (fat && (q = strchr(p, '.')) != NULL)
- *q = '\0';
- strcat(bakfile, ".BAK");
-
- #else /* it isn't MSDOS or OS/2 */
-
- for (p = in_name; *p; p++); /* skip to end of string */
- while (p > in_name && *p != '/') /* find last '/' */
- p--;
- if (*p == '/')
- p++;
-
- sprintf(bakfile, "%s.BAK", p);
-
- #endif
-
- /* copy in_name to backup file */
- bakchn = creat(bakfile, 0600);
- if (bakchn < 0)
- {
- fprintf(stderr, "indent: can't create backup file \"%s\"\n", bakfile);
- exit(1);
- }
- while (n = read(fileno(input), buff, COPY_BUFFER_SIZE))
- if (write(bakchn, buff, n) != n)
- {
- fprintf(stderr, "indent: error writing backup file \"%s\"\n",
- bakfile);
- exit(1);
- }
- if (n < 0)
- {
- fprintf(stderr, "indent: error reading input file \"%s\"\n", in_name);
- exit(1);
- }
- close(bakchn);
- fclose(input);
-
- free(buff);
-
- /* re-open backup file as the input file */
- input = fopen(bakfile, "r");
- if (input == NULL)
- {
- fprintf(stderr, "indent: can't re-open backup file\n");
- exit(1);
- }
- /* now the original input file will be the output */
- output = fopen(in_name, "w");
- if (output == NULL)
- {
- fprintf(stderr, "indent: can't create %s\n", in_name);
- unlink(bakfile);
- exit(1);
- }
- }
-