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. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * @(#)io.c 8.1 (Berkeley) 6/6/93
32 * $FreeBSD: src/usr.bin/indent/io.c,v 1.15 2005/11/13 20:37:25 dwmalone Exp $
40 #include "indent_globs.h"
44 static int paren_target;
45 static int pad_output(int current, int target);
49 { /* dump_line is the routine that actually
50 * effects the printing of the new source. It
51 * prints the label section, followed by the
52 * code section with the appropriate nesting
53 * level, followed by any comments */
56 static int not_first_line;
62 fprintf(output, ".*/\n");
64 fprintf(output, ".Pr \"%s\"\n", ps.procname);
69 if (s_code == e_code && s_lab == e_lab && s_com == e_com) {
70 if (suppress_blanklines > 0)
71 suppress_blanklines--;
77 else if (!inhibit_formatting) {
78 suppress_blanklines = 0;
80 if (prefix_blankline_requested && not_first_line) {
81 if (swallow_optional_blanklines) {
82 if (n_real_blanklines == 1)
83 n_real_blanklines = 0;
86 if (n_real_blanklines == 0)
87 n_real_blanklines = 1;
90 while (--n_real_blanklines >= 0)
92 n_real_blanklines = 0;
93 if (ps.ind_level == 0)
94 ps.ind_stmt = 0; /* this is a class A kludge. dont do
95 * additional statement indentation if we are
96 * at bracket level 0 */
98 if (e_lab != s_lab || e_code != s_code)
99 ++code_lines; /* keep count of lines with code */
102 if (e_lab != s_lab) { /* print lab, if any */
105 fprintf(output, ".*/\n");
107 while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
109 cur_col = pad_output(1, compute_label_target());
110 if (s_lab[0] == '#' && (strncmp(s_lab, "#else", 5) == 0
111 || strncmp(s_lab, "#endif", 6) == 0)) {
113 if (e_lab[-1] == '\n') e_lab--;
114 do putc(*s++, output);
115 while (s < e_lab && 'a' <= *s && *s<='z');
116 while ((*s == ' ' || *s == '\t') && s < e_lab)
119 fprintf(output, s[0]=='/' && s[1]=='*' ? "\t%.*s" : "\t/* %.*s */",
120 (int)(e_lab - s), s);
122 else fprintf(output, "%.*s", (int)(e_lab - s_lab), s_lab);
123 cur_col = count_spaces(cur_col, s_lab);
126 cur_col = 1; /* there is no label section */
130 if (s_code != e_code) { /* print code section, if any */
135 fprintf(output, ".*/\n");
137 target_col = compute_code_target();
141 for (i = 0; i < ps.p_l_follow; i++)
142 if (ps.paren_indents[i] >= 0)
143 ps.paren_indents[i] = -(ps.paren_indents[i] + target_col);
145 cur_col = pad_output(cur_col, target_col);
146 for (p = s_code; p < e_code; p++)
147 if (*p == (char) 0200)
148 fprintf(output, "%d", target_col * 7);
151 cur_col = count_spaces(cur_col, s_code);
153 if (s_com != e_com) {
158 if (e_com[-1] == '/' && e_com[-2] == '*')
159 e_com -= 2, all_here++;
160 while (e_com > s_com && e_com[-1] == ' ')
166 if (p[0] == '/' && p[1] == '*')
168 else if (p[0] == '*')
169 p += p[1] == '/' ? 2 : 1;
173 goto inhibit_newline;
174 if (comment_open < 2 && ps.box_com) {
176 fprintf(output, ".*/\n");
178 if (comment_open == 0) {
179 if ('a' <= *p && *p <= 'z')
181 if (e_com - p < 50 && all_here == 2) {
183 fprintf(output, "\n.nr C! \\w\1");
184 while (follow < e_com) {
193 putc(*follow, output);
199 fprintf(output, "\n./* %dp %d %dp\n",
201 (s_code != e_code || s_lab != e_lab) - ps.box_com,
204 comment_open = 1 + ps.box_com;
207 putc(BACKSLASH, output);
211 else { /* print comment, if any */
212 int target = ps.com_col;
213 char *com_st = s_com;
215 target += ps.comment_delta;
216 while (*com_st == '\t')
217 com_st++, target += 8; /* ? */
221 else if (*com_st == '\t')
222 target = ((target - 1) & ~7) + 9, com_st++;
225 if (cur_col > target) { /* if comment cant fit on this line,
226 * put it on next line */
231 while (e_com > com_st && isspace(e_com[-1]))
233 cur_col = pad_output(cur_col, target);
235 if (star_comment_cont && (com_st[1] != '*' || e_com <= com_st + 1)) {
236 if (com_st[1] == ' ' && com_st[0] == ' ' && e_com > com_st + 1)
239 fwrite(" * ", com_st[0] == '\t' ? 2 : com_st[0] == '*' ? 1 : 3, 1, output);
242 fwrite(com_st, e_com - com_st, 1, output);
243 ps.comment_delta = ps.n_comment_delta;
244 cur_col = count_spaces(cur_col, com_st);
245 ++ps.com_lines; /* count lines with comments */
249 putc('\014', output);
254 if (ps.just_saw_decl == 1 && blanklines_after_declarations) {
255 prefix_blankline_requested = 1;
256 ps.just_saw_decl = 0;
259 prefix_blankline_requested = postfix_blankline_requested;
260 postfix_blankline_requested = 0;
262 ps.decl_on_line = ps.in_decl; /* if we are in the middle of a
263 * declaration, remember that fact for
264 * proper comment indentation */
265 ps.ind_stmt = ps.in_stmt & ~ps.in_decl; /* next line should be
266 * indented if we have not
267 * completed this stmt and if
268 * we are not in the middle of
271 ps.dumped_decl_indent = 0;
272 *(e_lab = s_lab) = '\0'; /* reset buffers */
273 *(e_code = s_code) = '\0';
274 *(e_com = s_com) = '\0';
275 ps.ind_level = ps.i_l_follow;
276 ps.paren_level = ps.p_l_follow;
277 paren_target = -ps.paren_indents[ps.paren_level - 1];
282 compute_code_target(void)
284 int target_col = ps.ind_size * ps.ind_level + 1;
287 if (!lineup_to_parens)
288 target_col += continuation_indent
289 * (2 * continuation_indent == ps.ind_size ? 1 : ps.paren_level);
292 int t = paren_target;
294 if ((w = count_spaces(t, s_code) - max_col) > 0
295 && count_spaces(target_col, s_code) <= max_col) {
303 else if (ps.ind_stmt)
304 target_col += continuation_indent;
309 compute_label_target(void)
312 ps.pcase ? (int) (case_ind * ps.ind_size) + 1
314 : ps.ind_size * (ps.ind_level - label_offset) + 1;
319 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
321 * All rights reserved
326 * FUNCTION: Reads one block of input into input_buffer
328 * HISTORY: initial coding November 1976 D A Willcox of CAC 1/7/77 A
329 * Willcox of CAC Added check for switch back to partly full input
330 * buffer from temporary buffer
335 { /* this routine reads stuff from the input */
340 if (bp_save != 0) { /* there is a partly filled input buffer left */
341 buf_ptr = bp_save; /* dont read anything, just switch buffers */
343 bp_save = be_save = 0;
344 if (buf_ptr < buf_end)
345 return; /* only return if there is really something in
348 for (p = in_buffer;;) {
349 if (p >= in_buffer_limit) {
350 int size = (in_buffer_limit - in_buffer) * 2 + 10;
351 int offset = p - in_buffer;
352 in_buffer = realloc(in_buffer, size);
353 if (in_buffer == NULL)
354 errx(1, "input line too long");
355 p = in_buffer + offset;
356 in_buffer_limit = in_buffer + size - 2;
358 if ((i = getc(f)) == EOF) {
370 if (p[-2] == '/' && p[-3] == '*') {
371 if (in_buffer[3] == 'I' && strncmp(in_buffer, "/**INDENT**", 11) == 0)
372 fill_buffer(); /* flush indent error message */
377 while (*p == ' ' || *p == '\t')
379 if (*p == '/' && p[1] == '*') {
381 while (*p == ' ' || *p == '\t')
383 if (p[0] == 'I' && p[1] == 'N' && p[2] == 'D' && p[3] == 'E'
384 && p[4] == 'N' && p[5] == 'T') {
386 while (*p == ' ' || *p == '\t')
390 else if (*p == 'O') {
393 else if (*p == 'F' && *++p == 'F')
396 while (*p == ' ' || *p == '\t')
398 if (p[0] == '*' && p[1] == '/' && p[2] == '\n' && com) {
399 if (s_com != e_com || s_lab != e_lab || s_code != e_code)
401 if (!(inhibit_formatting = com - 1)) {
402 n_real_blanklines = 0;
403 postfix_blankline_requested = 0;
404 prefix_blankline_requested = 0;
405 suppress_blanklines = 1;
412 if (inhibit_formatting) {
416 while (*p++ != '\n');
421 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
423 * All rights reserved
428 * FUNCTION: Writes tabs and spaces to move the current column up to the desired
431 * ALGORITHM: Put tabs and/or blanks into pobuf, then write pobuf.
433 * PARAMETERS: current integer The current column target
434 * nteger The desired column
436 * RETURNS: Integer value of the new column. (If current >= target, no action is
437 * taken, and current is returned.
443 * CALLED BY: dump_line
445 * HISTORY: initial coding November 1976 D A Willcox of CAC
449 pad_output(int current, int target)
450 /* writes tabs and blanks (if necessary) to
451 * get the current output position up to the
453 /* current: the current column value */
454 /* target: position we want it at */
456 int curr; /* internal column pointer */
460 fprintf(output, "\\h'|%dp'", (target - 1) * 7);
462 if (current >= target)
463 return (current); /* line is already long enough */
466 while ((tcur = ((curr - 1) & tabmask) + tabsize + 1) <= target) {
471 while (curr++ < target)
472 putc(' ', output); /* pad with final blanks */
478 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
480 * All rights reserved
485 * FUNCTION: Find out where printing of a given string will leave the current
486 * character position on output.
488 * ALGORITHM: Run thru input string and add appropriate values to current
491 * RETURNS: Integer value of position after printing "buffer" starting in column
494 * HISTORY: initial coding November 1976 D A Willcox of CAC
498 count_spaces(int current, char *buffer)
500 * this routine figures out where the character position will be after
501 * printing the text in buffer starting at column "current"
504 char *buf; /* used to look thru buffer */
505 int cur; /* current character counter */
509 for (buf = buffer; *buf != '\0'; ++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 diag4(int level, const char *msg, int a, int b)
538 if (output == stdout) {
539 fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
540 fprintf(stdout, msg, a, b);
541 fprintf(stdout, " */\n");
544 fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
545 fprintf(stderr, msg, a, b);
546 fprintf(stderr, "\n");
551 diag3(int level, const char *msg, int a)
555 if (output == stdout) {
556 fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
557 fprintf(stdout, msg, a);
558 fprintf(stdout, " */\n");
561 fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
562 fprintf(stderr, msg, a);
563 fprintf(stderr, "\n");
568 diag2(int level, const char *msg)
572 if (output == stdout) {
573 fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
574 fprintf(stdout, "%s", msg);
575 fprintf(stdout, " */\n");
578 fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
579 fprintf(stderr, "%s", msg);
580 fprintf(stderr, "\n");
585 writefdef(struct fstate *f, int nm)
587 fprintf(output, ".ds f%c %s\n.nr s%c %d\n",
588 nm, f->font, nm, f->size);
592 chfont(struct fstate *of, struct fstate *nf, char *s)
594 if (of->font[0] != nf->font[0]
595 || of->font[1] != nf->font[1]) {
606 if (nf->size != of->size) {
609 if (nf->size < of->size) {
611 *s++ = '0' + of->size - nf->size;
615 *s++ = '0' + nf->size - of->size;
622 parsefont(struct fstate *f, const char *s0)
630 f->size = f->size * 10 + *s - '0';
631 else if (isupper(*s))
643 errx(1, "bad font specification: %s", s0);
652 f->size = bodyf.size + sizedelta;
653 else if (sizedelta > 0)
654 f->size += bodyf.size;
656 f->size = bodyf.size - f->size;