2 * Copyright (c) 1985 Sun Microsystems, Inc.
3 * Copyright (c) 1976 Board of Trustees of the University of Illinois.
4 * Copyright (c) 1980, 1993
5 * The Regents of the University of California. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 static const char copyright[] =
38 "@(#) Copyright (c) 1985 Sun Microsystems, Inc.\n\
39 @(#) Copyright (c) 1976 Board of Trustees of the University of Illinois.\n\
40 @(#) Copyright (c) 1980, 1993\n\
41 The Regents of the University of California. All rights reserved.\n";
46 static char sccsid[] = "@(#)indent.c 5.17 (Berkeley) 6/7/93";
50 #include <sys/cdefs.h>
51 __FBSDID("$FreeBSD$");
53 #include <sys/param.h>
61 #include "indent_globs.h"
62 #include "indent_codes.h"
65 static void bakcopy(void);
67 const char *in_name = "Standard Input"; /* will always point to name of input
69 const char *out_name = "Standard Output"; /* will always point to name
71 const char *simple_backup_suffix = ".BAK"; /* Suffix to use for backup
73 char bakfile[MAXPATHLEN] = "";
76 main(int argc, char **argv)
79 int dec_ind; /* current indentation for declarations */
80 int di_stack[20]; /* a stack of structure indentation levels */
81 int flushed_nl; /* used when buffering up comments to remember
82 * that a newline was passed over */
83 int force_nl; /* when true, code must be broken */
84 int hd_type = 0; /* used to store type of stmt for if (...),
86 int i; /* local loop counter */
87 int scase; /* set to true when we see a case, so we will
88 * know what to do with the following colon */
89 int sp_sw; /* when true, we are in the expression of
90 * if(...), while(...), etc. */
91 int squest; /* when this is positive, we have seen a ?
92 * without the matching : in a <c>?<s>:<s>
94 const char *t_ptr; /* used for copying tokens */
95 int tabs_to_var; /* true if using tabs to indent to var name */
96 int type_code; /* the type of token, returned by lexi */
98 int last_else = 0; /* true iff last keyword was an else */
99 const char *envval = NULL;
101 /*-----------------------------------------------*\
103 \*-----------------------------------------------*/
107 ps.p_stack[0] = stmt; /* this is the parser's stack */
108 ps.last_nl = true; /* this is true if the last thing scanned was
110 ps.last_token = semicolon;
111 combuf = (char *) malloc(bufsize);
114 labbuf = (char *) malloc(bufsize);
117 codebuf = (char *) malloc(bufsize);
120 tokenbuf = (char *) malloc(bufsize);
121 if (tokenbuf == NULL)
123 l_com = combuf + bufsize - 5;
124 l_lab = labbuf + bufsize - 5;
125 l_code = codebuf + bufsize - 5;
126 l_token = tokenbuf + bufsize - 5;
127 combuf[0] = codebuf[0] = labbuf[0] = ' '; /* set up code, label, and
129 combuf[1] = codebuf[1] = labbuf[1] = '\0';
130 ps.else_if = 1; /* Default else-if special processing to on */
131 s_lab = e_lab = labbuf + 1;
132 s_code = e_code = codebuf + 1;
133 s_com = e_com = combuf + 1;
134 s_token = e_token = tokenbuf + 1;
136 in_buffer = (char *) malloc(10);
137 if (in_buffer == NULL)
139 in_buffer_limit = in_buffer + 8;
140 buf_ptr = buf_end = in_buffer;
142 had_eof = ps.in_decl = ps.decl_on_line = break_comma = false;
143 sp_sw = force_nl = false;
147 di_stack[ps.dec_nest = 0] = 0;
148 ps.want_blank = ps.in_stmt = ps.ind_stmt = false;
150 scase = ps.pcase = false;
159 envval = getenv("SIMPLE_BACKUP_SUFFIX");
161 simple_backup_suffix = envval;
163 /*--------------------------------------------------*\
164 | COMMAND LINE SCAN |
165 \*--------------------------------------------------*/
168 max_col = 78; /* -l78 */
169 lineup_to_parens = 1; /* -lp */
170 ps.ljust_decl = 0; /* -ndj */
171 ps.com_ind = 33; /* -c33 */
172 star_comment_cont = 1; /* -sc */
173 ps.ind_size = 8; /* -i8 */
175 ps.decl_indent = 16; /* -di16 */
176 ps.local_decl_indent = -1; /* if this is not set to some nonnegative value
177 * by an arg, we will set this equal to
179 ps.indent_parameters = 1; /* -ip */
180 ps.decl_com_ind = 0; /* if this is not set to some positive value
181 * by an arg, we will set this equal to
183 btype_2 = 1; /* -br */
184 cuddle_else = 1; /* -ce */
185 ps.unindent_displace = 0; /* -d0 */
186 ps.case_indent = 0; /* -cli0 */
187 format_block_comments = 1; /* -fcb */
188 format_col1_comments = 1; /* -fc1 */
189 procnames_start_line = 1; /* -psl */
190 proc_calls_space = 0; /* -npcs */
191 comment_delimiter_on_blankline = 1; /* -cdb */
192 ps.leave_comma = 1; /* -nbc */
195 for (i = 1; i < argc; ++i)
196 if (strcmp(argv[i], "-npro") == 0)
202 for (i = 1; i < argc; ++i) {
205 * look thru args (if any) for changes to defaults
207 if (argv[i][0] != '-') {/* no flag on parameter */
208 if (input == NULL) { /* we must have the input file */
209 in_name = argv[i]; /* remember name of input file */
210 input = fopen(in_name, "r");
211 if (input == NULL) /* check for open error */
212 err(1, "%s", in_name);
215 else if (output == NULL) { /* we have the output file */
216 out_name = argv[i]; /* remember name of output file */
217 if (strcmp(in_name, out_name) == 0) { /* attempt to overwrite
219 errx(1, "input and output files must be different");
221 output = fopen(out_name, "w");
222 if (output == NULL) /* check for create error */
223 err(1, "%s", out_name);
226 errx(1, "unknown parameter: %s", argv[i]);
233 if (output == NULL) {
234 if (troff || input == stdin)
242 ps.com_ind = 2; /* dont put normal comments before column 2 */
244 if (bodyf.font[0] == 0)
245 parsefont(&bodyf, "R");
246 if (scomf.font[0] == 0)
247 parsefont(&scomf, "I");
248 if (blkcomf.font[0] == 0)
249 blkcomf = scomf, blkcomf.size += 2;
250 if (boxcomf.font[0] == 0)
252 if (stringf.font[0] == 0)
253 parsefont(&stringf, "L");
254 if (keywordf.font[0] == 0)
255 parsefont(&keywordf, "B");
256 writefdef(&bodyf, 'B');
257 writefdef(&scomf, 'C');
258 writefdef(&blkcomf, 'L');
259 writefdef(&boxcomf, 'X');
260 writefdef(&stringf, 'S');
261 writefdef(&keywordf, 'K');
263 if (block_comment_max_col <= 0)
264 block_comment_max_col = max_col;
265 if (ps.local_decl_indent < 0) /* if not specified by user, set this */
266 ps.local_decl_indent = ps.decl_indent;
267 if (ps.decl_com_ind <= 0) /* if not specified by user, set this */
268 ps.decl_com_ind = ps.ljust_decl ? (ps.com_ind <= 10 ? 2 : ps.com_ind - 8) : ps.com_ind;
269 if (continuation_indent == 0)
270 continuation_indent = ps.ind_size;
271 fill_buffer(); /* get first batch of stuff into input buffer */
282 col = ((col - 1) & ~7) + 9;
287 if (col > ps.ind_size)
288 ps.ind_level = ps.i_l_follow = col / ps.ind_size;
291 const char *p = in_name,
297 fprintf(output, ".Fn \"%s\"\n", beg);
303 while (1) { /* this is the main loop. it will go until we
307 type_code = lexi(); /* lexi reads one token. The actual
308 * characters read are stored in "token". lexi
309 * returns a code indicating the type of token */
310 is_procname = ps.procname[0];
313 * The following code moves everything following an if (), while (),
314 * else, etc. up to the start of the following stmt to a buffer. This
315 * allows proper handling of both kinds of brace placement.
319 while (ps.search_brace) { /* if we scanned an if(), while(),
320 * etc., we might need to copy stuff
321 * into a buffer we must loop, copying
322 * stuff into save_com, until we find
323 * the start of the stmt which follows
324 * the if, or whatever */
330 break; /* form feeds and newlines found here will be
333 case lbrace: /* this is a brace that starts the compound
335 if (sc_end == 0) { /* ignore buffering if a comment wasn't
337 ps.search_brace = false;
341 save_com[0] = '{'; /* we either want to put the brace
342 * right after the if */
343 goto sw_buffer; /* go to common code to get out of
346 case comment: /* we have a comment, so we must copy it into
348 if (!flushed_nl || sc_end != 0) {
349 if (sc_end == 0) { /* if this is the first comment, we
350 * must set up the buffer */
351 save_com[0] = save_com[1] = ' ';
352 sc_end = &(save_com[2]);
355 *sc_end++ = '\n'; /* add newline between
360 *sc_end++ = '/'; /* copy in start of comment */
363 for (;;) { /* loop until we get to the end of the comment */
364 *sc_end = *buf_ptr++;
365 if (buf_ptr >= buf_end)
368 if (*sc_end++ == '*' && *buf_ptr == '/')
369 break; /* we are at end of comment */
371 if (sc_end >= &(save_com[sc_size])) { /* check for temp buffer
373 diag2(1, "Internal buffer overflow - Move big comment from right after if, while, or whatever");
378 *sc_end++ = '/'; /* add ending slash */
379 if (++buf_ptr >= buf_end) /* get past / in buffer */
383 default: /* it is the start of a normal statement */
384 if (flushed_nl) /* if we flushed a newline, make sure it is
387 if ((type_code == sp_paren && *token == 'i'
388 && last_else && ps.else_if)
389 || (type_code == sp_nparen && *token == 'e'
390 && e_code != s_code && e_code[-1] == '}'))
393 if (sc_end == 0) { /* ignore buffering if comment wasn't
395 ps.search_brace = false;
398 if (force_nl) { /* if we should insert a nl here, put it into
401 --line_no; /* this will be re-increased when the nl is
402 * read from the buffer */
405 if (verbose && !flushed_nl) /* print error msg if the line
406 * was not already broken */
407 diag2(0, "Line broken");
410 for (t_ptr = token; *t_ptr; ++t_ptr)
411 *sc_end++ = *t_ptr; /* copy token into temp buffer */
415 ps.search_brace = false; /* stop looking for start of
417 bp_save = buf_ptr; /* save current input buffer */
419 buf_ptr = save_com; /* fix so that subsequent calls to
420 * lexi will take tokens out of
422 *sc_end++ = ' ';/* add trailing blank, just in case */
426 } /* end of switch */
427 if (type_code != 0) /* we must make this check, just in case there
428 * was an unexpected EOF */
429 type_code = lexi(); /* read another token */
430 /* if (ps.search_brace) ps.procname[0] = 0; */
431 if ((is_procname = ps.procname[0]) && flushed_nl
432 && !procnames_start_line && ps.in_decl
433 && type_code == ident)
435 } /* end of while (search_brace) */
438 if (type_code == 0) { /* we got eof */
439 if (s_lab != e_lab || s_code != e_code
440 || s_com != e_com) /* must dump end of line */
442 if (ps.tos > 1) /* check for balanced braces */
443 diag2(1, "Stuff missing from end of file");
446 printf("There were %d output lines and %d comments\n",
447 ps.out_lines, ps.out_coms);
448 printf("(Lines with comments)/(Lines with code): %6.3f\n",
449 (1.0 * ps.com_lines) / code_lines);
455 (type_code != comment) &&
456 (type_code != newline) &&
457 (type_code != preesc) &&
458 (type_code != form_feed)) {
460 (type_code != semicolon) &&
461 (type_code != lbrace || !btype_2)) {
462 /* we should force a broken line here */
463 if (verbose && !flushed_nl)
464 diag2(0, "Line broken");
467 ps.want_blank = false; /* dont insert blank at line start */
470 ps.in_stmt = true; /* turn on flag which causes an extra level of
471 * indentation. this is turned off by a ; or
473 if (s_com != e_com) { /* the turkey has embedded a comment
474 * in a line. fix it */
476 for (t_ptr = s_com; *t_ptr; ++t_ptr) {
481 *e_code = '\0'; /* null terminate code sect */
482 ps.want_blank = false;
486 else if (type_code != comment) /* preserve force_nl thru a comment */
487 force_nl = false; /* cancel forced newline after newline, form
492 /*-----------------------------------------------------*\
493 | do switch on type of token scanned |
494 \*-----------------------------------------------------*/
496 switch (type_code) { /* now, decide what to do with the token */
498 case form_feed: /* found a form feed in line */
499 ps.use_ff = true; /* a form feed is treated much like a newline */
501 ps.want_blank = false;
505 if (ps.last_token != comma || ps.p_l_follow > 0
506 || !ps.leave_comma || ps.block_init || !break_comma || s_com != e_com) {
508 ps.want_blank = false;
510 ++line_no; /* keep track of input line number */
513 case lparen: /* got a '(' or '[' */
514 ++ps.p_l_follow; /* count parens to make Healy happy */
515 if (ps.want_blank && *token != '[' &&
516 (ps.last_token != ident || proc_calls_space
517 || (ps.its_a_keyword && (!ps.sizeof_keyword || Bill_Shannon))))
519 if (ps.in_decl && !ps.block_init)
520 if (troff && !ps.dumped_decl_indent && !is_procname && ps.last_token == decl) {
521 ps.dumped_decl_indent = 1;
522 sprintf(e_code, "\n.Du %dp+\200p \"%s\"\n", dec_ind * 7, token);
523 e_code += strlen(e_code);
526 while ((e_code - s_code) < dec_ind) {
530 *e_code++ = token[0];
533 *e_code++ = token[0];
534 ps.paren_indents[ps.p_l_follow - 1] = e_code - s_code;
535 if (sp_sw && ps.p_l_follow == 1 && extra_expression_indent
536 && ps.paren_indents[0] < 2 * ps.ind_size)
537 ps.paren_indents[0] = 2 * ps.ind_size;
538 ps.want_blank = false;
539 if (ps.in_or_st && *token == '(' && ps.tos <= 2) {
541 * this is a kluge to make sure that declarations will be
542 * aligned right if proc decl has an explicit type on it, i.e.
545 parse(semicolon); /* I said this was a kluge... */
546 ps.in_or_st = false; /* turn off flag for structure decl or
549 if (ps.sizeof_keyword)
550 ps.sizeof_mask |= 1 << ps.p_l_follow;
553 case rparen: /* got a ')' or ']' */
555 if (ps.cast_mask & (1 << ps.p_l_follow) & ~ps.sizeof_mask) {
557 ps.cast_mask &= (1 << ps.p_l_follow) - 1;
558 ps.want_blank = false;
560 ps.want_blank = true;
561 ps.sizeof_mask &= (1 << ps.p_l_follow) - 1;
562 if (--ps.p_l_follow < 0) {
564 diag3(0, "Extra %c", *token);
566 if (e_code == s_code) /* if the paren starts the line */
567 ps.paren_level = ps.p_l_follow; /* then indent it */
569 *e_code++ = token[0];
571 if (sp_sw && (ps.p_l_follow == 0)) { /* check for end of if
572 * (...), or some such */
574 force_nl = true;/* must force newline after if */
575 ps.last_u_d = true; /* inform lexi that a following
576 * operator is unary */
577 ps.in_stmt = false; /* dont use stmt continuation
580 parse(hd_type); /* let parser worry about if, or whatever */
582 ps.search_brace = btype_2; /* this should insure that constructs
583 * such as main(){...} and int[]{...}
584 * have their braces put in the right
588 case unary_op: /* this could be any unary operation */
592 if (troff && !ps.dumped_decl_indent && ps.in_decl && !is_procname) {
593 sprintf(e_code, "\n.Du %dp+\200p \"%s\"\n", dec_ind * 7, token);
594 ps.dumped_decl_indent = 1;
595 e_code += strlen(e_code);
598 const char *res = token;
600 if (ps.in_decl && !ps.block_init) { /* if this is a unary op
601 * in a declaration, we
604 for (i = 0; token[i]; ++i); /* find length of token */
605 while ((e_code - s_code) < (dec_ind - i)) {
607 *e_code++ = ' '; /* pad it */
610 if (troff && token[0] == '-' && token[1] == '>')
612 for (t_ptr = res; *t_ptr; ++t_ptr) {
617 ps.want_blank = false;
620 case binary_op: /* any binary operation */
624 const char *res = token;
643 else if (token[1] == 0)
647 for (t_ptr = res; *t_ptr; ++t_ptr) {
649 *e_code++ = *t_ptr; /* move the operator */
652 ps.want_blank = true;
655 case postop: /* got a trailing ++ or -- */
656 *e_code++ = token[0];
657 *e_code++ = token[1];
658 ps.want_blank = true;
661 case question: /* got a ? */
662 squest++; /* this will be used when a later colon
663 * appears so we can distinguish the
664 * <c>?<n>:<n> construct */
668 ps.want_blank = true;
671 case casestmt: /* got word 'case' or 'default' */
672 scase = true; /* so we can process the later colon properly */
675 case colon: /* got a ':' */
676 if (squest > 0) { /* it is part of the <c>?<n>: <n> construct */
681 ps.want_blank = true;
686 ps.want_blank = false;
689 ps.in_stmt = false; /* seeing a label does not imply we are in a
691 for (t_ptr = s_code; *t_ptr; ++t_ptr)
692 *e_lab++ = *t_ptr; /* turn everything so far into a label */
698 force_nl = ps.pcase = scase; /* ps.pcase will be used by
699 * dump_line to decide how to
700 * indent the label. force_nl
701 * will force a case n: to be
702 * on a line by itself */
704 ps.want_blank = false;
707 case semicolon: /* got a ';' */
708 ps.in_or_st = false;/* we are not in an initialization or
709 * structure declaration */
710 scase = false; /* these will only need resetting in an error */
712 if (ps.last_token == rparen && rparen_count == 0)
713 ps.in_parameter_declaration = 0;
717 ps.block_init_level = 0;
720 if (ps.in_decl && s_code == e_code && !ps.block_init)
721 while ((e_code - s_code) < (dec_ind - 1)) {
726 ps.in_decl = (ps.dec_nest > 0); /* if we were in a first level
727 * structure declaration, we
730 if ((!sp_sw || hd_type != forstmt) && ps.p_l_follow > 0) {
733 * This should be true iff there were unbalanced parens in the
734 * stmt. It is a bit complicated, because the semicolon might
737 diag2(1, "Unbalanced parens");
739 if (sp_sw) { /* this is a check for an if, while, etc. with
740 * unbalanced parens */
742 parse(hd_type); /* dont lose the if, or whatever */
746 ps.want_blank = true;
747 ps.in_stmt = (ps.p_l_follow > 0); /* we are no longer in the
748 * middle of a stmt */
750 if (!sp_sw) { /* if not if for (;;) */
751 parse(semicolon); /* let parser know about end of stmt */
752 force_nl = true;/* force newline after an end of stmt */
756 case lbrace: /* got a '{' */
757 ps.in_stmt = false; /* dont indent the {} */
759 force_nl = true;/* force other stuff on same line as '{' onto
761 else if (ps.block_init_level <= 0)
762 ps.block_init_level = 1;
764 ps.block_init_level++;
766 if (s_code != e_code && !ps.block_init) {
769 ps.want_blank = false;
771 else if (ps.in_parameter_declaration && !ps.in_or_st) {
773 if (function_brace_split) { /* dump the line prior to the
776 ps.want_blank = false;
777 } else /* add a space between the decl and brace */
778 ps.want_blank = true;
781 if (ps.in_parameter_declaration)
782 prefix_blankline_requested = 0;
784 if (ps.p_l_follow > 0) { /* check for preceding unbalanced
786 diag2(1, "Unbalanced parens");
788 if (sp_sw) { /* check for unclosed if, for, etc. */
791 ps.ind_level = ps.i_l_follow;
794 if (s_code == e_code)
795 ps.ind_stmt = false; /* dont put extra indentation on line
797 if (ps.in_decl && ps.in_or_st) { /* this is either a structure
798 * declaration or an init */
799 di_stack[ps.dec_nest++] = dec_ind;
803 ps.decl_on_line = false; /* we can't be in the middle of
804 * a declaration, so don't do
805 * special indentation of
807 if (blanklines_after_declarations_at_proctop
808 && ps.in_parameter_declaration)
809 postfix_blankline_requested = 1;
810 ps.in_parameter_declaration = 0;
813 parse(lbrace); /* let parser know about this */
814 if (ps.want_blank) /* put a blank before '{' if '{' is not at
817 ps.want_blank = false;
819 ps.just_saw_decl = 0;
822 case rbrace: /* got a '}' */
823 if (ps.p_stack[ps.tos] == decl && !ps.block_init) /* semicolons can be
827 if (ps.p_l_follow) {/* check for unclosed if, for, else. */
828 diag2(1, "Unbalanced parens");
832 ps.just_saw_decl = 0;
833 ps.block_init_level--;
834 if (s_code != e_code && !ps.block_init) { /* '}' must be first on
837 diag2(0, "Line broken");
841 ps.want_blank = true;
842 ps.in_stmt = ps.ind_stmt = false;
843 if (ps.dec_nest > 0) { /* we are in multi-level structure
845 dec_ind = di_stack[--ps.dec_nest];
846 if (ps.dec_nest == 0 && !ps.in_parameter_declaration)
847 ps.just_saw_decl = 2;
850 prefix_blankline_requested = 0;
851 parse(rbrace); /* let parser know about this */
852 ps.search_brace = cuddle_else && ps.p_stack[ps.tos] == ifhead
853 && ps.il[ps.tos] >= ps.ind_level;
854 if (ps.tos <= 1 && blanklines_after_procs && ps.dec_nest <= 0)
855 postfix_blankline_requested = 1;
858 case swstmt: /* got keyword "switch" */
860 hd_type = swstmt; /* keep this for when we have seen the
862 goto copy_id; /* go move the token into buffer */
864 case sp_paren: /* token is if, while, for */
865 sp_sw = true; /* the interesting stuff is done after the
866 * expression is scanned */
867 hd_type = (*token == 'i' ? ifstmt :
868 (*token == 'w' ? whilestmt : forstmt));
871 * remember the type of header for later use by parser
873 goto copy_id; /* copy the token into line */
875 case sp_nparen: /* got else, do */
878 if (e_code != s_code && (!cuddle_else || e_code[-1] != '}')) {
880 diag2(0, "Line broken");
881 dump_line();/* make sure this starts a line */
882 ps.want_blank = false;
884 force_nl = true;/* also, following stuff must go onto new line */
889 if (e_code != s_code) { /* make sure this starts a line */
891 diag2(0, "Line broken");
893 ps.want_blank = false;
895 force_nl = true;/* also, following stuff must go onto new line */
899 goto copy_id; /* move the token into line */
901 case decl: /* we have a declaration type (int, register,
903 parse(decl); /* let parser worry about indentation */
904 if (ps.last_token == rparen && ps.tos <= 1) {
905 ps.in_parameter_declaration = 1;
906 if (s_code != e_code) {
911 if (ps.in_parameter_declaration && ps.indent_parameters && ps.dec_nest == 0) {
912 ps.ind_level = ps.i_l_follow = 1;
915 ps.in_or_st = true; /* this might be a structure or initialization
917 ps.in_decl = ps.decl_on_line = true;
918 if ( /* !ps.in_or_st && */ ps.dec_nest <= 0)
919 ps.just_saw_decl = 2;
920 prefix_blankline_requested = 0;
921 for (i = 0; token[i++];); /* get length of token */
923 if (ps.ind_level == 0 || ps.dec_nest > 0) {
924 /* global variable or struct member in local variable */
925 dec_ind = ps.decl_indent > 0 ? ps.decl_indent : i;
926 tabs_to_var = (use_tabs ? ps.decl_indent > 0 : 0);
929 dec_ind = ps.local_decl_indent > 0 ? ps.local_decl_indent : i;
930 tabs_to_var = (use_tabs ? ps.local_decl_indent > 0 : 0);
934 case ident: /* got an identifier or constant */
935 if (ps.in_decl) { /* if we are in a declaration, we must indent
937 if (is_procname == 0 || !procnames_start_line) {
938 if (!ps.block_init) {
939 if (troff && !ps.dumped_decl_indent) {
942 ps.want_blank = false;
943 sprintf(e_code, "\n.De %dp+\200p\n", dec_ind * 7);
944 ps.dumped_decl_indent = 1;
945 e_code += strlen(e_code);
951 * in order to get the tab math right for
952 * indentations that are not multiples of 8 we
953 * need to modify both startpos and dec_ind
954 * (cur_dec_ind) here by eight minus the
955 * remainder of the current starting column
956 * divided by eight. This seems to be a
957 * properly working fix
959 startpos = e_code - s_code;
960 cur_dec_ind = dec_ind;
962 if ((ps.ind_level * ps.ind_size) % 8 != 0) {
963 pos += (ps.ind_level * ps.ind_size) % 8;
964 cur_dec_ind += (ps.ind_level * ps.ind_size) % 8;
968 while ((pos & ~7) + 8 <= cur_dec_ind) {
971 pos = (pos & ~7) + 8;
974 while (pos < cur_dec_ind) {
979 if (ps.want_blank && e_code - s_code == startpos)
981 ps.want_blank = false;
987 ps.want_blank = false;
988 if (dec_ind && s_code != e_code)
993 else if (sp_sw && ps.p_l_follow == 0) {
1003 if (troff && ps.its_a_keyword) {
1004 e_code = chfont(&bodyf, &keywordf, e_code);
1005 for (t_ptr = token; *t_ptr; ++t_ptr) {
1007 *e_code++ = keywordf.allcaps && islower(*t_ptr)
1008 ? toupper(*t_ptr) : *t_ptr;
1010 e_code = chfont(&keywordf, &bodyf, e_code);
1013 for (t_ptr = token; *t_ptr; ++t_ptr) {
1017 ps.want_blank = true;
1020 case period: /* treat a period kind of like a binary
1022 *e_code++ = '.'; /* move the period into line */
1023 ps.want_blank = false; /* dont put a blank after a period */
1027 ps.want_blank = (s_code != e_code); /* only put blank after comma
1028 * if comma does not start the
1030 if (ps.in_decl && is_procname == 0 && !ps.block_init)
1031 while ((e_code - s_code) < (dec_ind - 1)) {
1037 if (ps.p_l_follow == 0) {
1038 if (ps.block_init_level <= 0)
1040 if (break_comma && (!ps.leave_comma || compute_code_target() + (e_code - s_code) > max_col - 8))
1045 case preesc: /* got the character '#' */
1046 if ((s_com != e_com) ||
1050 *e_lab++ = '#'; /* move whole line to 'label' buffer */
1057 while (*buf_ptr == ' ' || *buf_ptr == '\t') {
1059 if (buf_ptr >= buf_end)
1062 while (*buf_ptr != '\n' || (in_comment && !had_eof)) {
1064 *e_lab = *buf_ptr++;
1065 if (buf_ptr >= buf_end)
1070 *e_lab++ = BACKSLASH;
1072 *e_lab++ = *buf_ptr++;
1073 if (buf_ptr >= buf_end)
1078 if (*buf_ptr == '*' && !in_comment && !quote) {
1080 *e_lab++ = *buf_ptr++;
1081 com_start = e_lab - s_lab - 2;
1093 if (*buf_ptr == '/' && in_comment) {
1095 *e_lab++ = *buf_ptr++;
1096 com_end = e_lab - s_lab;
1102 while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
1104 if (e_lab - s_lab == com_end && bp_save == 0) { /* comment on
1105 * preprocessor line */
1106 if (sc_end == 0) /* if this is the first comment, we
1107 * must set up the buffer */
1108 sc_end = &(save_com[0]);
1110 *sc_end++ = '\n'; /* add newline between
1115 bcopy(s_lab + com_start, sc_end, com_end - com_start);
1116 sc_end += com_end - com_start;
1117 if (sc_end >= &save_com[sc_size])
1119 e_lab = s_lab + com_start;
1120 while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
1122 bp_save = buf_ptr; /* save current input buffer */
1124 buf_ptr = save_com; /* fix so that subsequent calls to
1125 * lexi will take tokens out of
1127 *sc_end++ = ' '; /* add trailing blank, just in case */
1131 *e_lab = '\0'; /* null terminate line */
1135 if (strncmp(s_lab, "#if", 3) == 0) {
1136 if (blanklines_around_conditional_compilation) {
1138 prefix_blankline_requested++;
1139 while ((c = getc(input)) == '\n');
1142 if ((size_t)ifdef_level < nitems(state_stack)) {
1143 match_state[ifdef_level].tos = -1;
1144 state_stack[ifdef_level++] = ps;
1147 diag2(1, "#if stack overflow");
1149 else if (strncmp(s_lab, "#else", 5) == 0)
1150 if (ifdef_level <= 0)
1151 diag2(1, "Unmatched #else");
1153 match_state[ifdef_level - 1] = ps;
1154 ps = state_stack[ifdef_level - 1];
1156 else if (strncmp(s_lab, "#endif", 6) == 0) {
1157 if (ifdef_level <= 0)
1158 diag2(1, "Unmatched #endif");
1164 * This match needs to be more intelligent before the
1167 if (match_state[ifdef_level].tos >= 0
1168 && bcmp(&ps, &match_state[ifdef_level], sizeof ps))
1169 diag2(0, "Syntactically inconsistent #ifdef alternatives");
1172 if (blanklines_around_conditional_compilation) {
1173 postfix_blankline_requested++;
1174 n_real_blanklines = 0;
1177 break; /* subsequent processing of the newline
1178 * character will cause the line to be printed */
1180 case comment: /* we have gotten a / followed by * this is a biggie */
1181 if (flushed_nl) { /* we should force a broken line here */
1184 ps.want_blank = false; /* dont insert blank at line start */
1189 } /* end of big switch stmt */
1191 *e_code = '\0'; /* make sure code section is null terminated */
1192 if (type_code != comment && type_code != newline && type_code != preesc)
1193 ps.last_token = type_code;
1194 } /* end of main while (1) loop */
1198 * copy input file to backup file if in_name is /blah/blah/blah/file, then
1199 * backup file will be ".Bfile" then make the backup file the input and
1200 * original input file the output
1207 char buff[8 * 1024];
1210 /* construct file name .Bfile */
1211 for (p = in_name; *p; p++); /* skip to end of string */
1212 while (p > in_name && *p != '/') /* find last '/' */
1216 sprintf(bakfile, "%s%s", p, simple_backup_suffix);
1218 /* copy in_name to backup file */
1219 bakchn = creat(bakfile, 0600);
1221 err(1, "%s", bakfile);
1222 while ((n = read(fileno(input), buff, sizeof buff)) != 0)
1223 if (write(bakchn, buff, n) != n)
1224 err(1, "%s", bakfile);
1226 err(1, "%s", in_name);
1230 /* re-open backup file as the input file */
1231 input = fopen(bakfile, "r");
1233 err(1, "%s", bakfile);
1234 /* now the original input file will be the output */
1235 output = fopen(in_name, "w");
1236 if (output == NULL) {
1238 err(1, "%s", in_name);