2 * Copyright (c) 1985 Sun Microsystems, Inc.
3 * Copyright (c) 1980, 1993
4 * 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
38 static char sccsid[] = "@(#)io.c 8.1 (Berkeley) 6/6/93";
40 static const char rcsid[] =
41 "$FreeBSD: src/usr.bin/indent/io.c,v 1.5.2.3 2001/12/06 19:28:47 schweikh Exp $";
49 #include "indent_globs.h"
53 static int paren_target;
54 static int pad_output(int current, int target);
58 { /* dump_line is the routine that actually
59 * effects the printing of the new source. It
60 * prints the label section, followed by the
61 * code section with the appropriate nesting
62 * level, followed by any comments */
65 static int not_first_line;
71 fprintf(output, ".*/\n");
73 fprintf(output, ".Pr \"%s\"\n", ps.procname);
78 if (s_code == e_code && s_lab == e_lab && s_com == e_com) {
79 if (suppress_blanklines > 0)
80 suppress_blanklines--;
86 else if (!inhibit_formatting) {
87 suppress_blanklines = 0;
89 if (prefix_blankline_requested && not_first_line) {
90 if (swallow_optional_blanklines) {
91 if (n_real_blanklines == 1)
92 n_real_blanklines = 0;
95 if (n_real_blanklines == 0)
96 n_real_blanklines = 1;
99 while (--n_real_blanklines >= 0)
101 n_real_blanklines = 0;
102 if (ps.ind_level == 0)
103 ps.ind_stmt = 0; /* this is a class A kludge. dont do
104 * additional statement indentation if we are
105 * at bracket level 0 */
107 if (e_lab != s_lab || e_code != s_code)
108 ++code_lines; /* keep count of lines with code */
111 if (e_lab != s_lab) { /* print lab, if any */
114 fprintf(output, ".*/\n");
116 while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
118 cur_col = pad_output(1, compute_label_target());
119 if (s_lab[0] == '#' && (strncmp(s_lab, "#else", 5) == 0
120 || strncmp(s_lab, "#endif", 6) == 0)) {
121 register char *s = s_lab;
122 if (e_lab[-1] == '\n') e_lab--;
123 do putc(*s++, output);
124 while (s < e_lab && 'a' <= *s && *s<='z');
125 while ((*s == ' ' || *s == '\t') && s < e_lab)
128 fprintf(output, s[0]=='/' && s[1]=='*' ? "\t%.*s" : "\t/* %.*s */",
131 else fprintf(output, "%.*s", e_lab - s_lab, s_lab);
132 cur_col = count_spaces(cur_col, s_lab);
135 cur_col = 1; /* there is no label section */
139 if (s_code != e_code) { /* print code section, if any */
144 fprintf(output, ".*/\n");
146 target_col = compute_code_target();
150 for (i = 0; i < ps.p_l_follow; i++)
151 if (ps.paren_indents[i] >= 0)
152 ps.paren_indents[i] = -(ps.paren_indents[i] + target_col);
154 cur_col = pad_output(cur_col, target_col);
155 for (p = s_code; p < e_code; p++)
156 if (*p == (char) 0200)
157 fprintf(output, "%d", target_col * 7);
160 cur_col = count_spaces(cur_col, s_code);
162 if (s_com != e_com) {
167 if (e_com[-1] == '/' && e_com[-2] == '*')
168 e_com -= 2, all_here++;
169 while (e_com > s_com && e_com[-1] == ' ')
175 if (p[0] == '/' && p[1] == '*')
177 else if (p[0] == '*')
178 p += p[1] == '/' ? 2 : 1;
182 goto inhibit_newline;
183 if (comment_open < 2 && ps.box_com) {
185 fprintf(output, ".*/\n");
187 if (comment_open == 0) {
188 if ('a' <= *p && *p <= 'z')
190 if (e_com - p < 50 && all_here == 2) {
191 register char *follow = p;
192 fprintf(output, "\n.nr C! \\w\1");
193 while (follow < e_com) {
202 putc(*follow, output);
208 fprintf(output, "\n./* %dp %d %dp\n",
210 (s_code != e_code || s_lab != e_lab) - ps.box_com,
213 comment_open = 1 + ps.box_com;
216 putc(BACKSLASH, output);
220 else { /* print comment, if any */
221 register int target = ps.com_col;
222 register char *com_st = s_com;
224 target += ps.comment_delta;
225 while (*com_st == '\t')
226 com_st++, target += 8; /* ? */
230 else if (*com_st == '\t')
231 target = ((target - 1) & ~7) + 9, com_st++;
234 if (cur_col > target) { /* if comment cant fit on this line,
235 * put it on next line */
240 while (e_com > com_st && isspace(e_com[-1]))
242 cur_col = pad_output(cur_col, target);
244 if (star_comment_cont && (com_st[1] != '*' || e_com <= com_st + 1)) {
245 if (com_st[1] == ' ' && com_st[0] == ' ' && e_com > com_st + 1)
248 fwrite(" * ", com_st[0] == '\t' ? 2 : com_st[0] == '*' ? 1 : 3, 1, output);
251 fwrite(com_st, e_com - com_st, 1, output);
252 ps.comment_delta = ps.n_comment_delta;
253 cur_col = count_spaces(cur_col, com_st);
254 ++ps.com_lines; /* count lines with comments */
258 putc('\014', output);
263 if (ps.just_saw_decl == 1 && blanklines_after_declarations) {
264 prefix_blankline_requested = 1;
265 ps.just_saw_decl = 0;
268 prefix_blankline_requested = postfix_blankline_requested;
269 postfix_blankline_requested = 0;
271 ps.decl_on_line = ps.in_decl; /* if we are in the middle of a
272 * declaration, remember that fact for
273 * proper comment indentation */
274 ps.ind_stmt = ps.in_stmt & ~ps.in_decl; /* next line should be
275 * indented if we have not
276 * completed this stmt and if
277 * we are not in the middle of
280 ps.dumped_decl_indent = 0;
281 *(e_lab = s_lab) = '\0'; /* reset buffers */
282 *(e_code = s_code) = '\0';
283 *(e_com = s_com) = '\0';
284 ps.ind_level = ps.i_l_follow;
285 ps.paren_level = ps.p_l_follow;
286 paren_target = -ps.paren_indents[ps.paren_level - 1];
291 compute_code_target(void)
293 register int target_col = ps.ind_size * ps.ind_level + 1;
296 if (!lineup_to_parens)
297 target_col += continuation_indent * ps.paren_level;
300 register int t = paren_target;
302 if ((w = count_spaces(t, s_code) - max_col) > 0
303 && count_spaces(target_col, s_code) <= max_col) {
311 else if (ps.ind_stmt)
312 target_col += continuation_indent;
317 compute_label_target(void)
320 ps.pcase ? (int) (case_ind * ps.ind_size) + 1
322 : ps.ind_size * (ps.ind_level - label_offset) + 1;
327 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
329 * All rights reserved
334 * FUNCTION: Reads one block of input into input_buffer
336 * HISTORY: initial coding November 1976 D A Willcox of CAC 1/7/77 A
337 * Willcox of CAC Added check for switch back to partly full input
338 * buffer from temporary buffer
343 { /* this routine reads stuff from the input */
346 register FILE *f = input;
348 if (bp_save != 0) { /* there is a partly filled input buffer left */
349 buf_ptr = bp_save; /* dont read anything, just switch buffers */
351 bp_save = be_save = 0;
352 if (buf_ptr < buf_end)
353 return; /* only return if there is really something in
356 for (p = in_buffer;;) {
357 if (p >= in_buffer_limit) {
358 register int size = (in_buffer_limit - in_buffer) * 2 + 10;
359 register int offset = p - in_buffer;
360 in_buffer = realloc(in_buffer, size);
362 err(1, "input line too long");
363 p = in_buffer + offset;
364 in_buffer_limit = in_buffer + size - 2;
366 if ((i = getc(f)) == EOF) {
378 if (p[-2] == '/' && p[-3] == '*') {
379 if (in_buffer[3] == 'I' && strncmp(in_buffer, "/**INDENT**", 11) == 0)
380 fill_buffer(); /* flush indent error message */
385 while (*p == ' ' || *p == '\t')
387 if (*p == '/' && p[1] == '*') {
389 while (*p == ' ' || *p == '\t')
391 if (p[0] == 'I' && p[1] == 'N' && p[2] == 'D' && p[3] == 'E'
392 && p[4] == 'N' && p[5] == 'T') {
394 while (*p == ' ' || *p == '\t')
398 else if (*p == 'O') {
401 else if (*p == 'F' && *++p == 'F')
404 while (*p == ' ' || *p == '\t')
406 if (p[0] == '*' && p[1] == '/' && p[2] == '\n' && com) {
407 if (s_com != e_com || s_lab != e_lab || s_code != e_code)
409 if (!(inhibit_formatting = com - 1)) {
410 n_real_blanklines = 0;
411 postfix_blankline_requested = 0;
412 prefix_blankline_requested = 0;
413 suppress_blanklines = 1;
420 if (inhibit_formatting) {
424 while (*p++ != '\n');
429 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
431 * All rights reserved
436 * FUNCTION: Writes tabs and spaces to move the current column up to the desired
439 * ALGORITHM: Put tabs and/or blanks into pobuf, then write pobuf.
441 * PARAMETERS: current integer The current column target
442 * nteger The desired column
444 * RETURNS: Integer value of the new column. (If current >= target, no action is
445 * taken, and current is returned.
451 * CALLED BY: dump_line
453 * HISTORY: initial coding November 1976 D A Willcox of CAC
457 pad_output(int current, int target)
458 /* writes tabs and blanks (if necessary) to
459 * get the current output position up to the
461 /* current: the current column value */
462 /* target: position we want it at */
464 register int curr; /* internal column pointer */
468 fprintf(output, "\\h'|%dp'", (target - 1) * 7);
470 if (current >= target)
471 return (current); /* line is already long enough */
473 while ((tcur = ((curr - 1) & tabmask) + tabsize + 1) <= target) {
477 while (curr++ < target)
478 putc(' ', output); /* pad with final blanks */
484 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
486 * All rights reserved
491 * FUNCTION: Find out where printing of a given string will leave the current
492 * character position on output.
494 * ALGORITHM: Run thru input string and add appropriate values to current
497 * RETURNS: Integer value of position after printing "buffer" starting in column
500 * HISTORY: initial coding November 1976 D A Willcox of CAC
504 count_spaces(int current, char *buffer)
506 * this routine figures out where the character position will be after
507 * printing the text in buffer starting at column "current"
510 register char *buf; /* used to look thru buffer */
511 register int cur; /* current character counter */
515 for (buf = buffer; *buf != '\0'; ++buf) {
519 case 014: /* form feed */
524 cur = ((cur - 1) & tabmask) + tabsize + 1;
527 case 010: /* backspace */
534 } /* end of switch */
535 } /* end of for loop */
542 diag4(int level, char *msg, int a, int b)
546 if (output == stdout) {
547 fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
548 fprintf(stdout, msg, a, b);
549 fprintf(stdout, " */\n");
552 fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
553 fprintf(stderr, msg, a, b);
554 fprintf(stderr, "\n");
559 diag3(int level, char *msg, int a)
563 if (output == stdout) {
564 fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
565 fprintf(stdout, msg, a);
566 fprintf(stdout, " */\n");
569 fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
570 fprintf(stderr, msg, a);
571 fprintf(stderr, "\n");
576 diag2(int level, char *msg)
580 if (output == stdout) {
581 fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
582 fprintf(stdout, msg);
583 fprintf(stdout, " */\n");
586 fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
587 fprintf(stderr, msg);
588 fprintf(stderr, "\n");
593 writefdef(struct fstate *f, int nm)
595 fprintf(output, ".ds f%c %s\n.nr s%c %d\n",
596 nm, f->font, nm, f->size);
600 chfont(struct fstate *of, struct fstate *nf, char *s)
602 if (of->font[0] != nf->font[0]
603 || of->font[1] != nf->font[1]) {
614 if (nf->size != of->size) {
617 if (nf->size < of->size) {
619 *s++ = '0' + of->size - nf->size;
623 *s++ = '0' + nf->size - of->size;
630 parsefont(struct fstate *f, char *s0)
632 register char *s = s0;
638 f->size = f->size * 10 + *s - '0';
639 else if (isupper(*s))
651 errx(1, "bad font specification: %s", s0);
660 f->size = bodyf.size + sizedelta;
661 else if (sizedelta > 0)
662 f->size += bodyf.size;
664 f->size = bodyf.size - f->size;