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";
42 #include <sys/cdefs.h>
43 __FBSDID("$FreeBSD$");
50 #include "indent_globs.h"
54 static int paren_target;
55 static int pad_output(int current, int target);
59 { /* dump_line is the routine that actually
60 * effects the printing of the new source. It
61 * prints the label section, followed by the
62 * code section with the appropriate nesting
63 * level, followed by any comments */
66 static int not_first_line;
72 fprintf(output, ".*/\n");
74 fprintf(output, ".Pr \"%s\"\n", ps.procname);
79 if (s_code == e_code && s_lab == e_lab && s_com == e_com) {
80 if (suppress_blanklines > 0)
81 suppress_blanklines--;
87 else if (!inhibit_formatting) {
88 suppress_blanklines = 0;
90 if (prefix_blankline_requested && not_first_line) {
91 if (swallow_optional_blanklines) {
92 if (n_real_blanklines == 1)
93 n_real_blanklines = 0;
96 if (n_real_blanklines == 0)
97 n_real_blanklines = 1;
100 while (--n_real_blanklines >= 0)
102 n_real_blanklines = 0;
103 if (ps.ind_level == 0)
104 ps.ind_stmt = 0; /* this is a class A kludge. dont do
105 * additional statement indentation if we are
106 * at bracket level 0 */
108 if (e_lab != s_lab || e_code != s_code)
109 ++code_lines; /* keep count of lines with code */
112 if (e_lab != s_lab) { /* print lab, if any */
115 fprintf(output, ".*/\n");
117 while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
120 cur_col = pad_output(1, compute_label_target());
121 if (s_lab[0] == '#' && (strncmp(s_lab, "#else", 5) == 0
122 || strncmp(s_lab, "#endif", 6) == 0)) {
124 if (e_lab[-1] == '\n') e_lab--;
125 do putc(*s++, output);
126 while (s < e_lab && 'a' <= *s && *s<='z');
127 while ((*s == ' ' || *s == '\t') && s < e_lab)
130 fprintf(output, s[0]=='/' && s[1]=='*' ? "\t%.*s" : "\t/* %.*s */",
131 (int)(e_lab - s), s);
133 else fprintf(output, "%.*s", (int)(e_lab - s_lab), s_lab);
134 cur_col = count_spaces(cur_col, s_lab);
137 cur_col = 1; /* there is no label section */
141 if (s_code != e_code) { /* print code section, if any */
146 fprintf(output, ".*/\n");
148 target_col = compute_code_target();
152 for (i = 0; i < ps.p_l_follow; i++)
153 if (ps.paren_indents[i] >= 0)
154 ps.paren_indents[i] = -(ps.paren_indents[i] + target_col);
156 cur_col = pad_output(cur_col, target_col);
157 for (p = s_code; p < e_code; p++)
158 if (*p == (char) 0200)
159 fprintf(output, "%d", target_col * 7);
162 cur_col = count_spaces(cur_col, s_code);
164 if (s_com != e_com) {
169 if (e_com[-1] == '/' && e_com[-2] == '*')
170 e_com -= 2, all_here++;
171 while (e_com > s_com && e_com[-1] == ' ')
177 if (p[0] == '/' && p[1] == '*')
179 else if (p[0] == '*')
180 p += p[1] == '/' ? 2 : 1;
184 goto inhibit_newline;
185 if (comment_open < 2 && ps.box_com) {
187 fprintf(output, ".*/\n");
189 if (comment_open == 0) {
190 if ('a' <= *p && *p <= 'z')
192 if (e_com - p < 50 && all_here == 2) {
194 fprintf(output, "\n.nr C! \\w\1");
195 while (follow < e_com) {
204 putc(*follow, output);
210 fprintf(output, "\n./* %dp %d %dp\n",
212 (s_code != e_code || s_lab != e_lab) - ps.box_com,
215 comment_open = 1 + ps.box_com;
218 putc(BACKSLASH, output);
222 else { /* print comment, if any */
223 int target = ps.com_col;
224 char *com_st = s_com;
226 target += ps.comment_delta;
227 while (*com_st == '\t')
228 com_st++, target += 8; /* ? */
232 else if (*com_st == '\t')
233 target = ((target - 1) & ~7) + 9, com_st++;
236 if (cur_col > target) { /* if comment can't fit on this line,
237 * put it on next line */
242 while (e_com > com_st && isspace(e_com[-1]))
244 cur_col = pad_output(cur_col, target);
245 fwrite(com_st, e_com - com_st, 1, output);
246 ps.comment_delta = ps.n_comment_delta;
247 ++ps.com_lines; /* count lines with comments */
251 putc('\014', output);
256 if (ps.just_saw_decl == 1 && blanklines_after_declarations) {
257 prefix_blankline_requested = 1;
258 ps.just_saw_decl = 0;
261 prefix_blankline_requested = postfix_blankline_requested;
262 postfix_blankline_requested = 0;
264 ps.decl_on_line = ps.in_decl; /* if we are in the middle of a
265 * declaration, remember that fact for
266 * proper comment indentation */
267 ps.ind_stmt = ps.in_stmt & ~ps.in_decl; /* next line should be
268 * indented if we have not
269 * completed this stmt and if
270 * we are not in the middle of
273 ps.dumped_decl_indent = 0;
274 *(e_lab = s_lab) = '\0'; /* reset buffers */
275 *(e_code = s_code) = '\0';
276 *(e_com = s_com = combuf + 1) = '\0';
277 ps.ind_level = ps.i_l_follow;
278 ps.paren_level = ps.p_l_follow;
279 paren_target = -ps.paren_indents[ps.paren_level - 1];
284 compute_code_target(void)
286 int target_col = ps.ind_size * ps.ind_level + 1;
289 if (!lineup_to_parens)
290 target_col += continuation_indent
291 * (2 * continuation_indent == ps.ind_size ? 1 : ps.paren_level);
294 int t = paren_target;
296 if ((w = count_spaces(t, s_code) - max_col) > 0
297 && count_spaces(target_col, s_code) <= max_col) {
305 else if (ps.ind_stmt)
306 target_col += continuation_indent;
311 compute_label_target(void)
314 ps.pcase ? (int) (case_ind * ps.ind_size) + 1
316 : ps.ind_size * (ps.ind_level - label_offset) + 1;
321 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
323 * All rights reserved
328 * FUNCTION: Reads one block of input into input_buffer
330 * HISTORY: initial coding November 1976 D A Willcox of CAC 1/7/77 A
331 * Willcox of CAC Added check for switch back to partly full input
332 * buffer from temporary buffer
337 { /* this routine reads stuff from the input */
342 if (bp_save != NULL) { /* there is a partly filled input buffer left */
343 buf_ptr = bp_save; /* do not read anything, just switch buffers */
345 bp_save = be_save = NULL;
346 if (buf_ptr < buf_end)
347 return; /* only return if there is really something in
350 for (p = in_buffer;;) {
351 if (p >= in_buffer_limit) {
352 int size = (in_buffer_limit - in_buffer) * 2 + 10;
353 int offset = p - in_buffer;
354 in_buffer = realloc(in_buffer, size);
355 if (in_buffer == NULL)
356 errx(1, "input line too long");
357 p = in_buffer + offset;
358 in_buffer_limit = in_buffer + size - 2;
360 if ((i = getc(f)) == EOF) {
372 if (p[-2] == '/' && p[-3] == '*') {
373 if (in_buffer[3] == 'I' && strncmp(in_buffer, "/**INDENT**", 11) == 0)
374 fill_buffer(); /* flush indent error message */
379 while (*p == ' ' || *p == '\t')
381 if (*p == '/' && p[1] == '*') {
383 while (*p == ' ' || *p == '\t')
385 if (p[0] == 'I' && p[1] == 'N' && p[2] == 'D' && p[3] == 'E'
386 && p[4] == 'N' && p[5] == 'T') {
388 while (*p == ' ' || *p == '\t')
392 else if (*p == 'O') {
395 else if (*p == 'F' && *++p == 'F')
398 while (*p == ' ' || *p == '\t')
400 if (p[0] == '*' && p[1] == '/' && p[2] == '\n' && com) {
401 if (s_com != e_com || s_lab != e_lab || s_code != e_code)
403 if (!(inhibit_formatting = com - 1)) {
404 n_real_blanklines = 0;
405 postfix_blankline_requested = 0;
406 prefix_blankline_requested = 0;
407 suppress_blanklines = 1;
414 if (inhibit_formatting) {
418 while (*p++ != '\n');
423 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
425 * All rights reserved
430 * FUNCTION: Writes tabs and spaces to move the current column up to the desired
433 * ALGORITHM: Put tabs and/or blanks into pobuf, then write pobuf.
435 * PARAMETERS: current integer The current column target
436 * nteger The desired column
438 * RETURNS: Integer value of the new column. (If current >= target, no action is
439 * taken, and current is returned.
445 * CALLED BY: dump_line
447 * HISTORY: initial coding November 1976 D A Willcox of CAC
451 pad_output(int current, int target)
452 /* writes tabs and blanks (if necessary) to
453 * get the current output position up to the
455 /* current: the current column value */
456 /* target: position we want it at */
458 int curr; /* internal column pointer */
462 fprintf(output, "\\h'|%dp'", (target - 1) * 7);
464 if (current >= target)
465 return (current); /* line is already long enough */
468 while ((tcur = ((curr - 1) & tabmask) + tabsize + 1) <= target) {
473 while (curr++ < target)
474 putc(' ', output); /* pad with final blanks */
480 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
482 * All rights reserved
487 * FUNCTION: Find out where printing of a given string will leave the current
488 * character position on output.
490 * ALGORITHM: Run thru input string and add appropriate values to current
493 * RETURNS: Integer value of position after printing "buffer" starting in column
496 * HISTORY: initial coding November 1976 D A Willcox of CAC
500 count_spaces_until(int cur, char *buffer, char *end)
502 * this routine figures out where the character position will be after
503 * printing the text in buffer starting at column "current"
506 char *buf; /* used to look thru buffer */
508 for (buf = buffer; *buf != '\0' && buf != end; ++buf) {
512 case 014: /* form feed */
517 cur = ((cur - 1) & tabmask) + tabsize + 1;
520 case 010: /* backspace */
527 } /* end of switch */
528 } /* end of for loop */
533 count_spaces(int cur, char *buffer)
535 return (count_spaces_until(cur, buffer, NULL));
539 diag4(int level, const char *msg, int a, int b)
543 if (output == stdout) {
544 fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
545 fprintf(stdout, msg, a, b);
546 fprintf(stdout, " */\n");
549 fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
550 fprintf(stderr, msg, a, b);
551 fprintf(stderr, "\n");
556 diag3(int level, const char *msg, int a)
560 if (output == stdout) {
561 fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
562 fprintf(stdout, msg, a);
563 fprintf(stdout, " */\n");
566 fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
567 fprintf(stderr, msg, a);
568 fprintf(stderr, "\n");
573 diag2(int level, const char *msg)
577 if (output == stdout) {
578 fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
579 fprintf(stdout, "%s", msg);
580 fprintf(stdout, " */\n");
583 fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
584 fprintf(stderr, "%s", msg);
585 fprintf(stderr, "\n");
590 writefdef(struct fstate *f, int nm)
592 fprintf(output, ".ds f%c %s\n.nr s%c %d\n",
593 nm, f->font, nm, f->size);
597 chfont(struct fstate *of, struct fstate *nf, char *s)
599 if (of->font[0] != nf->font[0]
600 || of->font[1] != nf->font[1]) {
611 if (nf->size != of->size) {
614 if (nf->size < of->size) {
616 *s++ = '0' + of->size - nf->size;
620 *s++ = '0' + nf->size - of->size;
627 parsefont(struct fstate *f, const char *s0)
632 memset(f, 0, sizeof(struct fstate));
635 f->size = f->size * 10 + *s - '0';
636 else if (isupper(*s))
648 errx(1, "bad font specification: %s", s0);
657 f->size = bodyf.size + sizedelta;
658 else if (sizedelta > 0)
659 f->size += bodyf.size;
661 f->size = bodyf.size - f->size;