2 * SPDX-License-Identifier: BSD-4-Clause
4 * Copyright (c) 1985 Sun Microsystems, Inc.
5 * Copyright (c) 1980, 1993
6 * The Regents of the University of California. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the University of
20 * California, Berkeley and its contributors.
21 * 4. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 static char sccsid[] = "@(#)io.c 8.1 (Berkeley) 6/6/93";
44 #include <sys/cdefs.h>
45 __FBSDID("$FreeBSD$");
52 #include "indent_globs.h"
56 static int paren_target;
57 static int pad_output(int current, int target);
61 { /* dump_line is the routine that actually
62 * effects the printing of the new source. It
63 * prints the label section, followed by the
64 * code section with the appropriate nesting
65 * level, followed by any comments */
68 static int not_first_line;
74 fprintf(output, ".*/\n");
76 fprintf(output, ".Pr \"%s\"\n", ps.procname);
81 if (s_code == e_code && s_lab == e_lab && s_com == e_com) {
82 if (suppress_blanklines > 0)
83 suppress_blanklines--;
89 else if (!inhibit_formatting) {
90 suppress_blanklines = 0;
92 if (prefix_blankline_requested && not_first_line) {
93 if (swallow_optional_blanklines) {
94 if (n_real_blanklines == 1)
95 n_real_blanklines = 0;
98 if (n_real_blanklines == 0)
99 n_real_blanklines = 1;
102 while (--n_real_blanklines >= 0)
104 n_real_blanklines = 0;
105 if (ps.ind_level == 0)
106 ps.ind_stmt = 0; /* this is a class A kludge. dont do
107 * additional statement indentation if we are
108 * at bracket level 0 */
110 if (e_lab != s_lab || e_code != s_code)
111 ++code_lines; /* keep count of lines with code */
114 if (e_lab != s_lab) { /* print lab, if any */
117 fprintf(output, ".*/\n");
119 while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
122 cur_col = pad_output(1, compute_label_target());
123 if (s_lab[0] == '#' && (strncmp(s_lab, "#else", 5) == 0
124 || strncmp(s_lab, "#endif", 6) == 0)) {
126 if (e_lab[-1] == '\n') e_lab--;
127 do putc(*s++, output);
128 while (s < e_lab && 'a' <= *s && *s<='z');
129 while ((*s == ' ' || *s == '\t') && s < e_lab)
132 fprintf(output, s[0]=='/' && s[1]=='*' ? "\t%.*s" : "\t/* %.*s */",
133 (int)(e_lab - s), s);
135 else fprintf(output, "%.*s", (int)(e_lab - s_lab), s_lab);
136 cur_col = count_spaces(cur_col, s_lab);
139 cur_col = 1; /* there is no label section */
143 if (s_code != e_code) { /* print code section, if any */
148 fprintf(output, ".*/\n");
150 target_col = compute_code_target();
154 for (i = 0; i < ps.p_l_follow; i++)
155 if (ps.paren_indents[i] >= 0)
156 ps.paren_indents[i] = -(ps.paren_indents[i] + target_col);
158 cur_col = pad_output(cur_col, target_col);
159 for (p = s_code; p < e_code; p++)
160 if (*p == (char) 0200)
161 fprintf(output, "%d", target_col * 7);
164 cur_col = count_spaces(cur_col, s_code);
166 if (s_com != e_com) {
171 if (e_com[-1] == '/' && e_com[-2] == '*')
172 e_com -= 2, all_here++;
173 while (e_com > s_com && e_com[-1] == ' ')
179 if (p[0] == '/' && p[1] == '*')
181 else if (p[0] == '*')
182 p += p[1] == '/' ? 2 : 1;
186 goto inhibit_newline;
187 if (comment_open < 2 && ps.box_com) {
189 fprintf(output, ".*/\n");
191 if (comment_open == 0) {
192 if ('a' <= *p && *p <= 'z')
194 if (e_com - p < 50 && all_here == 2) {
196 fprintf(output, "\n.nr C! \\w\1");
197 while (follow < e_com) {
205 /* add a backslash to escape the '\' */
207 putc(*follow, output);
213 fprintf(output, "\n./* %dp %d %dp\n",
215 (s_code != e_code || s_lab != e_lab) - ps.box_com,
218 comment_open = 1 + ps.box_com;
221 putc(BACKSLASH, output);
225 else { /* print comment, if any */
226 int target = ps.com_col;
227 char *com_st = s_com;
229 target += ps.comment_delta;
230 while (*com_st == '\t') /* consider original indentation in
231 * case this is a box comment */
232 com_st++, target += tabsize;
236 else if (*com_st == '\t')
237 target = tabsize * (1 + (target - 1) / tabsize) + 1, com_st++;
240 if (cur_col > target) { /* if comment can't fit on this line,
241 * put it on next line */
246 while (e_com > com_st && isspace(e_com[-1]))
248 (void)pad_output(cur_col, target);
249 fwrite(com_st, e_com - com_st, 1, output);
250 ps.comment_delta = ps.n_comment_delta;
251 ++ps.com_lines; /* count lines with comments */
255 putc('\014', output);
260 if (ps.just_saw_decl == 1 && blanklines_after_declarations) {
261 prefix_blankline_requested = 1;
262 ps.just_saw_decl = 0;
265 prefix_blankline_requested = postfix_blankline_requested;
266 postfix_blankline_requested = 0;
268 ps.decl_on_line = ps.in_decl; /* if we are in the middle of a
269 * declaration, remember that fact for
270 * proper comment indentation */
271 ps.ind_stmt = ps.in_stmt & ~ps.in_decl; /* next line should be
272 * indented if we have not
273 * completed this stmt and if
274 * we are not in the middle of
277 ps.dumped_decl_indent = 0;
278 *(e_lab = s_lab) = '\0'; /* reset buffers */
279 *(e_code = s_code) = '\0';
280 *(e_com = s_com = combuf + 1) = '\0';
281 ps.ind_level = ps.i_l_follow;
282 ps.paren_level = ps.p_l_follow;
283 if (ps.paren_level > 0)
284 paren_target = -ps.paren_indents[ps.paren_level - 1];
289 compute_code_target(void)
291 int target_col = ps.ind_size * ps.ind_level + 1;
294 if (!lineup_to_parens)
295 target_col += continuation_indent
296 * (2 * continuation_indent == ps.ind_size ? 1 : ps.paren_level);
299 int t = paren_target;
301 if ((w = count_spaces(t, s_code) - max_col) > 0
302 && count_spaces(target_col, s_code) <= max_col) {
310 else if (ps.ind_stmt)
311 target_col += continuation_indent;
316 compute_label_target(void)
319 ps.pcase ? (int) (case_ind * ps.ind_size) + 1
321 : ps.ind_size * (ps.ind_level - label_offset) + 1;
326 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
328 * All rights reserved
333 * FUNCTION: Reads one block of input into input_buffer
335 * HISTORY: initial coding November 1976 D A Willcox of CAC 1/7/77 A
336 * Willcox of CAC Added check for switch back to partly full input
337 * buffer from temporary buffer
342 { /* this routine reads stuff from the input */
347 if (bp_save != NULL) { /* there is a partly filled input buffer left */
348 buf_ptr = bp_save; /* do not read anything, just switch buffers */
350 bp_save = be_save = NULL;
351 if (buf_ptr < buf_end)
352 return; /* only return if there is really something in
355 for (p = in_buffer;;) {
356 if (p >= in_buffer_limit) {
357 int size = (in_buffer_limit - in_buffer) * 2 + 10;
358 int offset = p - in_buffer;
359 in_buffer = realloc(in_buffer, size);
360 if (in_buffer == NULL)
361 errx(1, "input line too long");
362 p = in_buffer + offset;
363 in_buffer_limit = in_buffer + size - 2;
365 if ((i = getc(f)) == EOF) {
377 if (p - in_buffer > 2 && p[-2] == '/' && p[-3] == '*') {
378 if (in_buffer[3] == 'I' && strncmp(in_buffer, "/**INDENT**", 11) == 0)
379 fill_buffer(); /* flush indent error message */
384 while (*p == ' ' || *p == '\t')
386 if (*p == '/' && p[1] == '*') {
388 while (*p == ' ' || *p == '\t')
390 if (p[0] == 'I' && p[1] == 'N' && p[2] == 'D' && p[3] == 'E'
391 && p[4] == 'N' && p[5] == 'T') {
393 while (*p == ' ' || *p == '\t')
397 else if (*p == 'O') {
400 else if (*p == 'F' && *++p == 'F')
403 while (*p == ' ' || *p == '\t')
405 if (p[0] == '*' && p[1] == '/' && p[2] == '\n' && com) {
406 if (s_com != e_com || s_lab != e_lab || s_code != e_code)
408 if (!(inhibit_formatting = com - 1)) {
409 n_real_blanklines = 0;
410 postfix_blankline_requested = 0;
411 prefix_blankline_requested = 0;
412 suppress_blanklines = 1;
419 if (inhibit_formatting) {
423 while (*p++ != '\n');
428 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
430 * All rights reserved
435 * FUNCTION: Writes tabs and spaces to move the current column up to the desired
438 * ALGORITHM: Put tabs and/or blanks into pobuf, then write pobuf.
440 * PARAMETERS: current integer The current column target
441 * nteger The desired column
443 * RETURNS: Integer value of the new column. (If current >= target, no action is
444 * taken, and current is returned.
450 * CALLED BY: dump_line
452 * HISTORY: initial coding November 1976 D A Willcox of CAC
456 pad_output(int current, int target)
457 /* writes tabs and blanks (if necessary) to
458 * get the current output position up to the
460 /* current: the current column value */
461 /* target: position we want it at */
465 fprintf(output, "\\h'|%dp'", (target - 1) * 7);
467 int curr; /* internal column pointer */
469 if (current >= target)
470 return (current); /* line is already long enough */
475 while ((tcur = tabsize * (1 + (curr - 1) / tabsize) + 1) <= target) {
480 while (curr++ < target)
481 putc(' ', output); /* pad with final blanks */
487 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
489 * All rights reserved
494 * FUNCTION: Find out where printing of a given string will leave the current
495 * character position on output.
497 * ALGORITHM: Run thru input string and add appropriate values to current
500 * RETURNS: Integer value of position after printing "buffer" starting in column
503 * HISTORY: initial coding November 1976 D A Willcox of CAC
507 count_spaces_until(int cur, char *buffer, char *end)
509 * this routine figures out where the character position will be after
510 * printing the text in buffer starting at column "current"
513 char *buf; /* used to look thru buffer */
515 for (buf = buffer; *buf != '\0' && buf != end; ++buf) {
519 case 014: /* form feed */
524 cur = tabsize * (1 + (cur - 1) / tabsize) + 1;
527 case 010: /* backspace */
534 } /* end of switch */
535 } /* end of for loop */
540 count_spaces(int cur, char *buffer)
542 return (count_spaces_until(cur, buffer, NULL));
546 diag4(int level, const char *msg, int a, int b)
550 if (output == stdout) {
551 fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
552 fprintf(stdout, msg, a, b);
553 fprintf(stdout, " */\n");
556 fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
557 fprintf(stderr, msg, a, b);
558 fprintf(stderr, "\n");
563 diag3(int level, const char *msg, int a)
567 if (output == stdout) {
568 fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
569 fprintf(stdout, msg, a);
570 fprintf(stdout, " */\n");
573 fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
574 fprintf(stderr, msg, a);
575 fprintf(stderr, "\n");
580 diag2(int level, const char *msg)
584 if (output == stdout) {
585 fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
586 fprintf(stdout, "%s", msg);
587 fprintf(stdout, " */\n");
590 fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
591 fprintf(stderr, "%s", msg);
592 fprintf(stderr, "\n");
597 writefdef(struct fstate *f, int nm)
599 fprintf(output, ".ds f%c %s\n.nr s%c %d\n",
600 nm, f->font, nm, f->size);
604 chfont(struct fstate *of, struct fstate *nf, char *s)
606 if (of->font[0] != nf->font[0]
607 || of->font[1] != nf->font[1]) {
618 if (nf->size != of->size) {
621 if (nf->size < of->size) {
623 *s++ = '0' + of->size - nf->size;
627 *s++ = '0' + nf->size - of->size;
634 parsefont(struct fstate *f, const char *s0)
639 memset(f, '\0', sizeof(*f));
642 f->size = f->size * 10 + *s - '0';
643 else if (isupper(*s))
655 errx(1, "bad font specification: %s", s0);
664 f->size = bodyf.size + sizedelta;
665 else if (sizedelta > 0)
666 f->size += bodyf.size;
668 f->size = bodyf.size - f->size;