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'))
119 cur_col
= pad_output(1, compute_label_target());
120 if (s_lab
[0] == '#' && (strncmp(s_lab
, "#else", 5) == 0
121 || strncmp(s_lab
, "#endif", 6) == 0)) {
123 if (e_lab
[-1] == '\n') e_lab
--;
124 do putc(*s
++, output
);
125 while (s
< e_lab
&& 'a' <= *s
&& *s
<='z');
126 while ((*s
== ' ' || *s
== '\t') && s
< e_lab
)
129 fprintf(output
, s
[0]=='/' && s
[1]=='*' ? "\t%.*s" : "\t/* %.*s */",
130 (int)(e_lab
- s
), s
);
132 else fprintf(output
, "%.*s", (int)(e_lab
- s_lab
), s_lab
);
133 cur_col
= count_spaces(cur_col
, s_lab
);
136 cur_col
= 1; /* there is no label section */
140 if (s_code
!= e_code
) { /* print code section, if any */
145 fprintf(output
, ".*/\n");
147 target_col
= compute_code_target();
151 for (i
= 0; i
< ps
.p_l_follow
; i
++)
152 if (ps
.paren_indents
[i
] >= 0)
153 ps
.paren_indents
[i
] = -(ps
.paren_indents
[i
] + target_col
);
155 cur_col
= pad_output(cur_col
, target_col
);
156 for (p
= s_code
; p
< e_code
; p
++)
157 if (*p
== (char) 0200)
158 fprintf(output
, "%d", target_col
* 7);
161 cur_col
= count_spaces(cur_col
, s_code
);
163 if (s_com
!= e_com
) {
168 if (e_com
[-1] == '/' && e_com
[-2] == '*')
169 e_com
-= 2, all_here
++;
170 while (e_com
> s_com
&& e_com
[-1] == ' ')
176 if (p
[0] == '/' && p
[1] == '*')
178 else if (p
[0] == '*')
179 p
+= p
[1] == '/' ? 2 : 1;
183 goto inhibit_newline
;
184 if (comment_open
< 2 && ps
.box_com
) {
186 fprintf(output
, ".*/\n");
188 if (comment_open
== 0) {
189 if ('a' <= *p
&& *p
<= 'z')
191 if (e_com
- p
< 50 && all_here
== 2) {
193 fprintf(output
, "\n.nr C! \\w\1");
194 while (follow
< e_com
) {
203 putc(*follow
, output
);
209 fprintf(output
, "\n./* %dp %d %dp\n",
211 (s_code
!= e_code
|| s_lab
!= e_lab
) - ps
.box_com
,
214 comment_open
= 1 + ps
.box_com
;
217 putc(BACKSLASH
, output
);
221 else { /* print comment, if any */
222 int target
= ps
.com_col
;
223 char *com_st
= s_com
;
225 target
+= ps
.comment_delta
;
226 while (*com_st
== '\t')
227 com_st
++, target
+= 8; /* ? */
231 else if (*com_st
== '\t')
232 target
= ((target
- 1) & ~7) + 9, com_st
++;
235 if (cur_col
> target
) { /* if comment can't fit on this line,
236 * put it on next line */
241 while (e_com
> com_st
&& isspace(e_com
[-1]))
243 cur_col
= pad_output(cur_col
, target
);
245 if (star_comment_cont
&& (com_st
[1] != '*' || e_com
<= com_st
+ 1)) {
246 if (com_st
[1] == ' ' && com_st
[0] == ' ' && e_com
> com_st
+ 1)
249 fwrite(" * ", com_st
[0] == '\t' ? 2 : com_st
[0] == '*' ? 1 : 3, 1, output
);
252 fwrite(com_st
, e_com
- com_st
, 1, output
);
253 ps
.comment_delta
= ps
.n_comment_delta
;
254 cur_col
= count_spaces(cur_col
, com_st
);
255 ++ps
.com_lines
; /* count lines with comments */
259 putc('\014', output
);
264 if (ps
.just_saw_decl
== 1 && blanklines_after_declarations
) {
265 prefix_blankline_requested
= 1;
266 ps
.just_saw_decl
= 0;
269 prefix_blankline_requested
= postfix_blankline_requested
;
270 postfix_blankline_requested
= 0;
272 ps
.decl_on_line
= ps
.in_decl
; /* if we are in the middle of a
273 * declaration, remember that fact for
274 * proper comment indentation */
275 ps
.ind_stmt
= ps
.in_stmt
& ~ps
.in_decl
; /* next line should be
276 * indented if we have not
277 * completed this stmt and if
278 * we are not in the middle of
281 ps
.dumped_decl_indent
= 0;
282 *(e_lab
= s_lab
) = '\0'; /* reset buffers */
283 *(e_code
= s_code
) = '\0';
284 *(e_com
= s_com
) = '\0';
285 ps
.ind_level
= ps
.i_l_follow
;
286 ps
.paren_level
= ps
.p_l_follow
;
287 paren_target
= -ps
.paren_indents
[ps
.paren_level
- 1];
292 compute_code_target(void)
294 int target_col
= ps
.ind_size
* ps
.ind_level
+ 1;
297 if (!lineup_to_parens
)
298 target_col
+= continuation_indent
299 * (2 * continuation_indent
== ps
.ind_size
? 1 : ps
.paren_level
);
302 int t
= paren_target
;
304 if ((w
= count_spaces(t
, s_code
) - max_col
) > 0
305 && count_spaces(target_col
, s_code
) <= max_col
) {
313 else if (ps
.ind_stmt
)
314 target_col
+= continuation_indent
;
319 compute_label_target(void)
322 ps
.pcase
? (int) (case_ind
* ps
.ind_size
) + 1
324 : ps
.ind_size
* (ps
.ind_level
- label_offset
) + 1;
329 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
331 * All rights reserved
336 * FUNCTION: Reads one block of input into input_buffer
338 * HISTORY: initial coding November 1976 D A Willcox of CAC 1/7/77 A
339 * Willcox of CAC Added check for switch back to partly full input
340 * buffer from temporary buffer
345 { /* this routine reads stuff from the input */
350 if (bp_save
!= 0) { /* there is a partly filled input buffer left */
351 buf_ptr
= bp_save
; /* dont read anything, just switch buffers */
353 bp_save
= be_save
= 0;
354 if (buf_ptr
< buf_end
)
355 return; /* only return if there is really something in
358 for (p
= in_buffer
;;) {
359 if (p
>= in_buffer_limit
) {
360 int size
= (in_buffer_limit
- in_buffer
) * 2 + 10;
361 int offset
= p
- in_buffer
;
362 in_buffer
= realloc(in_buffer
, size
);
363 if (in_buffer
== NULL
)
364 errx(1, "input line too long");
365 p
= in_buffer
+ offset
;
366 in_buffer_limit
= in_buffer
+ size
- 2;
368 if ((i
= getc(f
)) == EOF
) {
380 if (p
[-2] == '/' && p
[-3] == '*') {
381 if (in_buffer
[3] == 'I' && strncmp(in_buffer
, "/**INDENT**", 11) == 0)
382 fill_buffer(); /* flush indent error message */
387 while (*p
== ' ' || *p
== '\t')
389 if (*p
== '/' && p
[1] == '*') {
391 while (*p
== ' ' || *p
== '\t')
393 if (p
[0] == 'I' && p
[1] == 'N' && p
[2] == 'D' && p
[3] == 'E'
394 && p
[4] == 'N' && p
[5] == 'T') {
396 while (*p
== ' ' || *p
== '\t')
400 else if (*p
== 'O') {
403 else if (*p
== 'F' && *++p
== 'F')
406 while (*p
== ' ' || *p
== '\t')
408 if (p
[0] == '*' && p
[1] == '/' && p
[2] == '\n' && com
) {
409 if (s_com
!= e_com
|| s_lab
!= e_lab
|| s_code
!= e_code
)
411 if (!(inhibit_formatting
= com
- 1)) {
412 n_real_blanklines
= 0;
413 postfix_blankline_requested
= 0;
414 prefix_blankline_requested
= 0;
415 suppress_blanklines
= 1;
422 if (inhibit_formatting
) {
426 while (*p
++ != '\n');
431 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
433 * All rights reserved
438 * FUNCTION: Writes tabs and spaces to move the current column up to the desired
441 * ALGORITHM: Put tabs and/or blanks into pobuf, then write pobuf.
443 * PARAMETERS: current integer The current column target
444 * nteger The desired column
446 * RETURNS: Integer value of the new column. (If current >= target, no action is
447 * taken, and current is returned.
453 * CALLED BY: dump_line
455 * HISTORY: initial coding November 1976 D A Willcox of CAC
459 pad_output(int current
, int target
)
460 /* writes tabs and blanks (if necessary) to
461 * get the current output position up to the
463 /* current: the current column value */
464 /* target: position we want it at */
466 int curr
; /* internal column pointer */
470 fprintf(output
, "\\h'|%dp'", (target
- 1) * 7);
472 if (current
>= target
)
473 return (current
); /* line is already long enough */
476 while ((tcur
= ((curr
- 1) & tabmask
) + tabsize
+ 1) <= target
) {
481 while (curr
++ < target
)
482 putc(' ', output
); /* pad with final blanks */
488 * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
490 * All rights reserved
495 * FUNCTION: Find out where printing of a given string will leave the current
496 * character position on output.
498 * ALGORITHM: Run thru input string and add appropriate values to current
501 * RETURNS: Integer value of position after printing "buffer" starting in column
504 * HISTORY: initial coding November 1976 D A Willcox of CAC
508 count_spaces(int current
, char *buffer
)
510 * this routine figures out where the character position will be after
511 * printing the text in buffer starting at column "current"
514 char *buf
; /* used to look thru buffer */
515 int cur
; /* current character counter */
519 for (buf
= buffer
; *buf
!= '\0'; ++buf
) {
523 case 014: /* form feed */
528 cur
= ((cur
- 1) & tabmask
) + tabsize
+ 1;
531 case 010: /* backspace */
538 } /* end of switch */
539 } /* end of for loop */
544 diag4(int level
, const char *msg
, int a
, int b
)
548 if (output
== stdout
) {
549 fprintf(stdout
, "/**INDENT** %s@%d: ", level
== 0 ? "Warning" : "Error", line_no
);
550 fprintf(stdout
, msg
, a
, b
);
551 fprintf(stdout
, " */\n");
554 fprintf(stderr
, "%s@%d: ", level
== 0 ? "Warning" : "Error", line_no
);
555 fprintf(stderr
, msg
, a
, b
);
556 fprintf(stderr
, "\n");
561 diag3(int level
, const char *msg
, int a
)
565 if (output
== stdout
) {
566 fprintf(stdout
, "/**INDENT** %s@%d: ", level
== 0 ? "Warning" : "Error", line_no
);
567 fprintf(stdout
, msg
, a
);
568 fprintf(stdout
, " */\n");
571 fprintf(stderr
, "%s@%d: ", level
== 0 ? "Warning" : "Error", line_no
);
572 fprintf(stderr
, msg
, a
);
573 fprintf(stderr
, "\n");
578 diag2(int level
, const char *msg
)
582 if (output
== stdout
) {
583 fprintf(stdout
, "/**INDENT** %s@%d: ", level
== 0 ? "Warning" : "Error", line_no
);
584 fprintf(stdout
, "%s", msg
);
585 fprintf(stdout
, " */\n");
588 fprintf(stderr
, "%s@%d: ", level
== 0 ? "Warning" : "Error", line_no
);
589 fprintf(stderr
, "%s", msg
);
590 fprintf(stderr
, "\n");
595 writefdef(struct fstate
*f
, int nm
)
597 fprintf(output
, ".ds f%c %s\n.nr s%c %d\n",
598 nm
, f
->font
, nm
, f
->size
);
602 chfont(struct fstate
*of
, struct fstate
*nf
, char *s
)
604 if (of
->font
[0] != nf
->font
[0]
605 || of
->font
[1] != nf
->font
[1]) {
616 if (nf
->size
!= of
->size
) {
619 if (nf
->size
< of
->size
) {
621 *s
++ = '0' + of
->size
- nf
->size
;
625 *s
++ = '0' + nf
->size
- of
->size
;
632 parsefont(struct fstate
*f
, const char *s0
)
640 f
->size
= f
->size
* 10 + *s
- '0';
641 else if (isupper(*s
))
653 errx(1, "bad font specification: %s", s0
);
662 f
->size
= bodyf
.size
+ sizedelta
;
663 else if (sizedelta
> 0)
664 f
->size
+= bodyf
.size
;
666 f
->size
= bodyf
.size
- f
->size
;