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
;