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) {
203 /* add a backslash to escape the '\' */
205 putc(*follow, output);
211 fprintf(output, "\n./* %dp %d %dp\n",
213 (s_code != e_code || s_lab != e_lab) - ps.box_com,
216 comment_open = 1 + ps.box_com;
219 putc(BACKSLASH, output);
223 else { /* print comment, if any */
224 int target = ps.com_col;
225 char *com_st = s_com;
227 target += ps.comment_delta;
228 while (*com_st == '\t')
229 com_st++, target += 8; /* ? */
233 else if (*com_st == '\t')
234 target = ((target - 1) & ~7) + 9, com_st++;
237 if (cur_col > target) { /* if comment can't fit on this line,
238 * put it on next line */
243 while (e_com > com_st && isspace(e_com[-1]))
245 cur_col = pad_output(cur_col, target);
246 fwrite(com_st, e_com - com_st, 1, output);
247 ps.comment_delta = ps.n_comment_delta;
248 ++ps.com_lines; /* count lines with comments */
252 putc('\014', output);
257 if (ps.just_saw_decl == 1 && blanklines_after_declarations) {
258 prefix_blankline_requested = 1;
259 ps.just_saw_decl = 0;
262 prefix_blankline_requested = postfix_blankline_requested;
263 postfix_blankline_requested = 0;
265 ps.decl_on_line = ps.in_decl; /* if we are in the middle of a
266 * declaration, remember that fact for
267 * proper comment indentation */
268 ps.ind_stmt = ps.in_stmt & ~ps.in_decl; /* next line should be
269 * indented if we have not
270 * completed this stmt and if
271 * we are not in the middle of
274 ps.dumped_decl_indent = 0;
275 *(e_lab = s_lab) = '\0'; /* reset buffers */
276 *(e_code = s_code) = '\0';
277 *(e_com = s_com = combuf + 1) = '\0';
278 ps.ind_level = ps.i_l_follow;
279 ps.paren_level = ps.p_l_follow;
280 paren_target = -ps.paren_indents[ps.paren_level - 1];
285 compute_code_target(void)
287 int target_col = ps.ind_size * ps.ind_level + 1;
290 if (!lineup_to_parens)
291 target_col += continuation_indent
292 * (2 * continuation_indent == ps.ind_size ? 1 : ps.paren_level);
295 int t = paren_target;
297 if ((w = count_spaces(t, s_code) - max_col) > 0
298 && count_spaces(target_col, s_code) <= max_col) {
306 else if (ps.ind_stmt)
307 target_col += continuation_indent;
312 compute_label_target(void)
315 ps.pcase ? (int) (case_ind * ps.ind_size) + 1
317 : ps.ind_size * (ps.ind_level - label_offset) + 1;
322 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
324 * All rights reserved
329 * FUNCTION: Reads one block of input into input_buffer
331 * HISTORY: initial coding November 1976 D A Willcox of CAC 1/7/77 A
332 * Willcox of CAC Added check for switch back to partly full input
333 * buffer from temporary buffer
338 { /* this routine reads stuff from the input */
343 if (bp_save != NULL) { /* there is a partly filled input buffer left */
344 buf_ptr = bp_save; /* do not read anything, just switch buffers */
346 bp_save = be_save = NULL;
347 if (buf_ptr < buf_end)
348 return; /* only return if there is really something in
351 for (p = in_buffer;;) {
352 if (p >= in_buffer_limit) {
353 int size = (in_buffer_limit - in_buffer) * 2 + 10;
354 int offset = p - in_buffer;
355 in_buffer = realloc(in_buffer, size);
356 if (in_buffer == NULL)
357 errx(1, "input line too long");
358 p = in_buffer + offset;
359 in_buffer_limit = in_buffer + size - 2;
361 if ((i = getc(f)) == EOF) {
373 if (p[-2] == '/' && p[-3] == '*') {
374 if (in_buffer[3] == 'I' && strncmp(in_buffer, "/**INDENT**", 11) == 0)
375 fill_buffer(); /* flush indent error message */
380 while (*p == ' ' || *p == '\t')
382 if (*p == '/' && p[1] == '*') {
384 while (*p == ' ' || *p == '\t')
386 if (p[0] == 'I' && p[1] == 'N' && p[2] == 'D' && p[3] == 'E'
387 && p[4] == 'N' && p[5] == 'T') {
389 while (*p == ' ' || *p == '\t')
393 else if (*p == 'O') {
396 else if (*p == 'F' && *++p == 'F')
399 while (*p == ' ' || *p == '\t')
401 if (p[0] == '*' && p[1] == '/' && p[2] == '\n' && com) {
402 if (s_com != e_com || s_lab != e_lab || s_code != e_code)
404 if (!(inhibit_formatting = com - 1)) {
405 n_real_blanklines = 0;
406 postfix_blankline_requested = 0;
407 prefix_blankline_requested = 0;
408 suppress_blanklines = 1;
415 if (inhibit_formatting) {
419 while (*p++ != '\n');
424 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
426 * All rights reserved
431 * FUNCTION: Writes tabs and spaces to move the current column up to the desired
434 * ALGORITHM: Put tabs and/or blanks into pobuf, then write pobuf.
436 * PARAMETERS: current integer The current column target
437 * nteger The desired column
439 * RETURNS: Integer value of the new column. (If current >= target, no action is
440 * taken, and current is returned.
446 * CALLED BY: dump_line
448 * HISTORY: initial coding November 1976 D A Willcox of CAC
452 pad_output(int current, int target)
453 /* writes tabs and blanks (if necessary) to
454 * get the current output position up to the
456 /* current: the current column value */
457 /* target: position we want it at */
459 int curr; /* internal column pointer */
463 fprintf(output, "\\h'|%dp'", (target - 1) * 7);
465 if (current >= target)
466 return (current); /* line is already long enough */
469 while ((tcur = ((curr - 1) & tabmask) + tabsize + 1) <= target) {
474 while (curr++ < target)
475 putc(' ', output); /* pad with final blanks */
481 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
483 * All rights reserved
488 * FUNCTION: Find out where printing of a given string will leave the current
489 * character position on output.
491 * ALGORITHM: Run thru input string and add appropriate values to current
494 * RETURNS: Integer value of position after printing "buffer" starting in column
497 * HISTORY: initial coding November 1976 D A Willcox of CAC
501 count_spaces_until(int cur, char *buffer, char *end)
503 * this routine figures out where the character position will be after
504 * printing the text in buffer starting at column "current"
507 char *buf; /* used to look thru buffer */
509 for (buf = buffer; *buf != '\0' && buf != end; ++buf) {
513 case 014: /* form feed */
518 cur = ((cur - 1) & tabmask) + tabsize + 1;
521 case 010: /* backspace */
528 } /* end of switch */
529 } /* end of for loop */
534 count_spaces(int cur, char *buffer)
536 return (count_spaces_until(cur, buffer, NULL));
540 diag4(int level, const char *msg, int a, int b)
544 if (output == stdout) {
545 fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
546 fprintf(stdout, msg, a, b);
547 fprintf(stdout, " */\n");
550 fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
551 fprintf(stderr, msg, a, b);
552 fprintf(stderr, "\n");
557 diag3(int level, const char *msg, int a)
561 if (output == stdout) {
562 fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
563 fprintf(stdout, msg, a);
564 fprintf(stdout, " */\n");
567 fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
568 fprintf(stderr, msg, a);
569 fprintf(stderr, "\n");
574 diag2(int level, const char *msg)
578 if (output == stdout) {
579 fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
580 fprintf(stdout, "%s", msg);
581 fprintf(stdout, " */\n");
584 fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
585 fprintf(stderr, "%s", msg);
586 fprintf(stderr, "\n");
591 writefdef(struct fstate *f, int nm)
593 fprintf(output, ".ds f%c %s\n.nr s%c %d\n",
594 nm, f->font, nm, f->size);
598 chfont(struct fstate *of, struct fstate *nf, char *s)
600 if (of->font[0] != nf->font[0]
601 || of->font[1] != nf->font[1]) {
612 if (nf->size != of->size) {
615 if (nf->size < of->size) {
617 *s++ = '0' + of->size - nf->size;
621 *s++ = '0' + nf->size - of->size;
628 parsefont(struct fstate *f, const char *s0)
633 memset(f, 0, sizeof(struct fstate));
636 f->size = f->size * 10 + *s - '0';
637 else if (isupper(*s))
649 errx(1, "bad font specification: %s", s0);
658 f->size = bodyf.size + sizedelta;
659 else if (sizedelta > 0)
660 f->size += bodyf.size;
662 f->size = bodyf.size - f->size;