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
35 * @(#)io.c 8.1 (Berkeley) 6/6/93
36 * $FreeBSD: src/usr.bin/indent/io.c,v 1.15 2005/11/13 20:37:25 dwmalone Exp $
44 #include "indent_globs.h"
48 static int paren_target;
49 static int pad_output(int current, int target);
53 { /* dump_line is the routine that actually
54 * effects the printing of the new source. It
55 * prints the label section, followed by the
56 * code section with the appropriate nesting
57 * level, followed by any comments */
60 static int not_first_line;
66 fprintf(output, ".*/\n");
68 fprintf(output, ".Pr \"%s\"\n", ps.procname);
73 if (s_code == e_code && s_lab == e_lab && s_com == e_com) {
74 if (suppress_blanklines > 0)
75 suppress_blanklines--;
81 else if (!inhibit_formatting) {
82 suppress_blanklines = 0;
84 if (prefix_blankline_requested && not_first_line) {
85 if (swallow_optional_blanklines) {
86 if (n_real_blanklines == 1)
87 n_real_blanklines = 0;
90 if (n_real_blanklines == 0)
91 n_real_blanklines = 1;
94 while (--n_real_blanklines >= 0)
96 n_real_blanklines = 0;
97 if (ps.ind_level == 0)
98 ps.ind_stmt = 0; /* this is a class A kludge. dont do
99 * additional statement indentation if we are
100 * at bracket level 0 */
102 if (e_lab != s_lab || e_code != s_code)
103 ++code_lines; /* keep count of lines with code */
106 if (e_lab != s_lab) { /* print lab, if any */
109 fprintf(output, ".*/\n");
111 while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
113 cur_col = pad_output(1, compute_label_target());
114 if (s_lab[0] == '#' && (strncmp(s_lab, "#else", 5) == 0
115 || strncmp(s_lab, "#endif", 6) == 0)) {
117 if (e_lab[-1] == '\n') e_lab--;
118 do putc(*s++, output);
119 while (s < e_lab && 'a' <= *s && *s<='z');
120 while ((*s == ' ' || *s == '\t') && s < e_lab)
123 fprintf(output, s[0]=='/' && s[1]=='*' ? "\t%.*s" : "\t/* %.*s */",
124 (int)(e_lab - s), s);
126 else fprintf(output, "%.*s", (int)(e_lab - s_lab), s_lab);
127 cur_col = count_spaces(cur_col, s_lab);
130 cur_col = 1; /* there is no label section */
134 if (s_code != e_code) { /* print code section, if any */
139 fprintf(output, ".*/\n");
141 target_col = compute_code_target();
145 for (i = 0; i < ps.p_l_follow; i++)
146 if (ps.paren_indents[i] >= 0)
147 ps.paren_indents[i] = -(ps.paren_indents[i] + target_col);
149 cur_col = pad_output(cur_col, target_col);
150 for (p = s_code; p < e_code; p++)
151 if (*p == (char) 0200)
152 fprintf(output, "%d", target_col * 7);
155 cur_col = count_spaces(cur_col, s_code);
157 if (s_com != e_com) {
162 if (e_com[-1] == '/' && e_com[-2] == '*')
163 e_com -= 2, all_here++;
164 while (e_com > s_com && e_com[-1] == ' ')
170 if (p[0] == '/' && p[1] == '*')
172 else if (p[0] == '*')
173 p += p[1] == '/' ? 2 : 1;
177 goto inhibit_newline;
178 if (comment_open < 2 && ps.box_com) {
180 fprintf(output, ".*/\n");
182 if (comment_open == 0) {
183 if ('a' <= *p && *p <= 'z')
185 if (e_com - p < 50 && all_here == 2) {
187 fprintf(output, "\n.nr C! \\w\1");
188 while (follow < e_com) {
197 putc(*follow, output);
203 fprintf(output, "\n./* %dp %d %dp\n",
205 (s_code != e_code || s_lab != e_lab) - ps.box_com,
208 comment_open = 1 + ps.box_com;
211 putc(BACKSLASH, output);
215 else { /* print comment, if any */
216 int target = ps.com_col;
217 char *com_st = s_com;
219 target += ps.comment_delta;
220 while (*com_st == '\t')
221 com_st++, target += 8; /* ? */
225 else if (*com_st == '\t')
226 target = ((target - 1) & ~7) + 9, com_st++;
229 if (cur_col > target) { /* if comment cant fit on this line,
230 * put it on next line */
235 while (e_com > com_st && isspace(e_com[-1]))
237 cur_col = pad_output(cur_col, target);
239 if (star_comment_cont && (com_st[1] != '*' || e_com <= com_st + 1)) {
240 if (com_st[1] == ' ' && com_st[0] == ' ' && e_com > com_st + 1)
243 fwrite(" * ", com_st[0] == '\t' ? 2 : com_st[0] == '*' ? 1 : 3, 1, output);
246 fwrite(com_st, e_com - com_st, 1, output);
247 ps.comment_delta = ps.n_comment_delta;
248 cur_col = count_spaces(cur_col, com_st);
249 ++ps.com_lines; /* count lines with comments */
253 putc('\014', output);
258 if (ps.just_saw_decl == 1 && blanklines_after_declarations) {
259 prefix_blankline_requested = 1;
260 ps.just_saw_decl = 0;
263 prefix_blankline_requested = postfix_blankline_requested;
264 postfix_blankline_requested = 0;
266 ps.decl_on_line = ps.in_decl; /* if we are in the middle of a
267 * declaration, remember that fact for
268 * proper comment indentation */
269 ps.ind_stmt = ps.in_stmt & ~ps.in_decl; /* next line should be
270 * indented if we have not
271 * completed this stmt and if
272 * we are not in the middle of
275 ps.dumped_decl_indent = 0;
276 *(e_lab = s_lab) = '\0'; /* reset buffers */
277 *(e_code = s_code) = '\0';
278 *(e_com = s_com) = '\0';
279 ps.ind_level = ps.i_l_follow;
280 ps.paren_level = ps.p_l_follow;
281 paren_target = -ps.paren_indents[ps.paren_level - 1];
286 compute_code_target(void)
288 int target_col = ps.ind_size * ps.ind_level + 1;
291 if (!lineup_to_parens)
292 target_col += continuation_indent
293 * (2 * continuation_indent == ps.ind_size ? 1 : ps.paren_level);
296 int t = paren_target;
298 if ((w = count_spaces(t, s_code) - max_col) > 0
299 && count_spaces(target_col, s_code) <= max_col) {
307 else if (ps.ind_stmt)
308 target_col += continuation_indent;
313 compute_label_target(void)
316 ps.pcase ? (int) (case_ind * ps.ind_size) + 1
318 : ps.ind_size * (ps.ind_level - label_offset) + 1;
323 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
325 * All rights reserved
330 * FUNCTION: Reads one block of input into input_buffer
332 * HISTORY: initial coding November 1976 D A Willcox of CAC 1/7/77 A
333 * Willcox of CAC Added check for switch back to partly full input
334 * buffer from temporary buffer
339 { /* this routine reads stuff from the input */
344 if (bp_save != 0) { /* there is a partly filled input buffer left */
345 buf_ptr = bp_save; /* dont read anything, just switch buffers */
347 bp_save = be_save = 0;
348 if (buf_ptr < buf_end)
349 return; /* only return if there is really something in
352 for (p = in_buffer;;) {
353 if (p >= in_buffer_limit) {
354 int size = (in_buffer_limit - in_buffer) * 2 + 10;
355 int offset = p - in_buffer;
356 in_buffer = realloc(in_buffer, size);
357 if (in_buffer == NULL)
358 errx(1, "input line too long");
359 p = in_buffer + offset;
360 in_buffer_limit = in_buffer + size - 2;
362 if ((i = getc(f)) == EOF) {
374 if (p[-2] == '/' && p[-3] == '*') {
375 if (in_buffer[3] == 'I' && strncmp(in_buffer, "/**INDENT**", 11) == 0)
376 fill_buffer(); /* flush indent error message */
381 while (*p == ' ' || *p == '\t')
383 if (*p == '/' && p[1] == '*') {
385 while (*p == ' ' || *p == '\t')
387 if (p[0] == 'I' && p[1] == 'N' && p[2] == 'D' && p[3] == 'E'
388 && p[4] == 'N' && p[5] == 'T') {
390 while (*p == ' ' || *p == '\t')
394 else if (*p == 'O') {
397 else if (*p == 'F' && *++p == 'F')
400 while (*p == ' ' || *p == '\t')
402 if (p[0] == '*' && p[1] == '/' && p[2] == '\n' && com) {
403 if (s_com != e_com || s_lab != e_lab || s_code != e_code)
405 if (!(inhibit_formatting = com - 1)) {
406 n_real_blanklines = 0;
407 postfix_blankline_requested = 0;
408 prefix_blankline_requested = 0;
409 suppress_blanklines = 1;
416 if (inhibit_formatting) {
420 while (*p++ != '\n');
425 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
427 * All rights reserved
432 * FUNCTION: Writes tabs and spaces to move the current column up to the desired
435 * ALGORITHM: Put tabs and/or blanks into pobuf, then write pobuf.
437 * PARAMETERS: current integer The current column target
438 * nteger The desired column
440 * RETURNS: Integer value of the new column. (If current >= target, no action is
441 * taken, and current is returned.
447 * CALLED BY: dump_line
449 * HISTORY: initial coding November 1976 D A Willcox of CAC
453 pad_output(int current, int target)
454 /* writes tabs and blanks (if necessary) to
455 * get the current output position up to the
457 /* current: the current column value */
458 /* target: position we want it at */
460 int curr; /* internal column pointer */
464 fprintf(output, "\\h'|%dp'", (target - 1) * 7);
466 if (current >= target)
467 return (current); /* line is already long enough */
470 while ((tcur = ((curr - 1) & tabmask) + tabsize + 1) <= target) {
475 while (curr++ < target)
476 putc(' ', output); /* pad with final blanks */
482 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
484 * All rights reserved
489 * FUNCTION: Find out where printing of a given string will leave the current
490 * character position on output.
492 * ALGORITHM: Run thru input string and add appropriate values to current
495 * RETURNS: Integer value of position after printing "buffer" starting in column
498 * HISTORY: initial coding November 1976 D A Willcox of CAC
502 count_spaces(int current, char *buffer)
504 * this routine figures out where the character position will be after
505 * printing the text in buffer starting at column "current"
508 char *buf; /* used to look thru buffer */
509 int cur; /* current character counter */
513 for (buf = buffer; *buf != '\0'; ++buf) {
517 case 014: /* form feed */
522 cur = ((cur - 1) & tabmask) + tabsize + 1;
525 case 010: /* backspace */
532 } /* end of switch */
533 } /* end of for loop */
538 diag4(int level, const char *msg, int a, int b)
542 if (output == stdout) {
543 fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
544 fprintf(stdout, msg, a, b);
545 fprintf(stdout, " */\n");
548 fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
549 fprintf(stderr, msg, a, b);
550 fprintf(stderr, "\n");
555 diag3(int level, const char *msg, int a)
559 if (output == stdout) {
560 fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
561 fprintf(stdout, msg, a);
562 fprintf(stdout, " */\n");
565 fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
566 fprintf(stderr, msg, a);
567 fprintf(stderr, "\n");
572 diag2(int level, const char *msg)
576 if (output == stdout) {
577 fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
578 fprintf(stdout, msg);
579 fprintf(stdout, " */\n");
582 fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
583 fprintf(stderr, msg);
584 fprintf(stderr, "\n");
589 writefdef(struct fstate *f, int nm)
591 fprintf(output, ".ds f%c %s\n.nr s%c %d\n",
592 nm, f->font, nm, f->size);
596 chfont(struct fstate *of, struct fstate *nf, char *s)
598 if (of->font[0] != nf->font[0]
599 || of->font[1] != nf->font[1]) {
610 if (nf->size != of->size) {
613 if (nf->size < of->size) {
615 *s++ = '0' + of->size - nf->size;
619 *s++ = '0' + nf->size - of->size;
626 parsefont(struct fstate *f, const char *s0)
634 f->size = f->size * 10 + *s - '0';
635 else if (isupper(*s))
647 errx(1, "bad font specification: %s", s0);
656 f->size = bodyf.size + sizedelta;
657 else if (sizedelta > 0)
658 f->size += bodyf.size;
660 f->size = bodyf.size - f->size;