Commit | Line | Data |
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c0bc4ef7 | 1 | /* |
30f48914 KB |
2 | * Copyright (c) 1985 Sun Microsystems, Inc. |
3 | * Copyright (c) 1980 The Regents of the University of California. | |
b0627149 KB |
4 | * Copyright (c) 1976 Board of Trustees of the University of Illinois. |
5 | * All rights reserved. | |
6 | * | |
6ecf3d85 | 7 | * %sccs.include.redist.c% |
c0bc4ef7 DF |
8 | */ |
9 | ||
10 | #ifndef lint | |
2b8540ff | 11 | static char sccsid[] = "@(#)io.c 5.15 (Berkeley) %G%"; |
b0627149 | 12 | #endif /* not lint */ |
87ba9e01 | 13 | |
2b8540ff | 14 | #include <stdio.h> |
30f48914 | 15 | #include <ctype.h> |
2b8540ff KB |
16 | #include <stdlib.h> |
17 | #include <string.h> | |
18 | #include "indent_globs.h" | |
87ba9e01 KM |
19 | |
20 | ||
1009bf5e KM |
21 | int comment_open; |
22 | static paren_target; | |
87ba9e01 | 23 | |
1009bf5e KM |
24 | dump_line() |
25 | { /* dump_line is the routine that actually | |
30f48914 KB |
26 | * effects the printing of the new source. It |
27 | * prints the label section, followed by the | |
28 | * code section with the appropriate nesting | |
29 | * level, followed by any comments */ | |
1009bf5e | 30 | register int cur_col, |
1009bf5e | 31 | target_col; |
30f48914 | 32 | static not_first_line; |
87ba9e01 | 33 | |
1009bf5e | 34 | if (ps.procname[0]) { |
30f48914 KB |
35 | if (troff) { |
36 | if (comment_open) { | |
37 | comment_open = 0; | |
38 | fprintf(output, ".*/\n"); | |
39 | } | |
1009bf5e | 40 | fprintf(output, ".Pr \"%s\"\n", ps.procname); |
30f48914 | 41 | } |
1009bf5e KM |
42 | ps.ind_level = 0; |
43 | ps.procname[0] = 0; | |
44 | } | |
45 | if (s_code == e_code && s_lab == e_lab && s_com == e_com) { | |
30f48914 KB |
46 | if (suppress_blanklines > 0) |
47 | suppress_blanklines--; | |
87ba9e01 | 48 | else { |
30f48914 KB |
49 | ps.bl_line = true; |
50 | n_real_blanklines++; | |
87ba9e01 | 51 | } |
87ba9e01 | 52 | } |
1009bf5e KM |
53 | else if (!inhibit_formatting) { |
54 | suppress_blanklines = 0; | |
55 | ps.bl_line = false; | |
30f48914 | 56 | if (prefix_blankline_requested && not_first_line) |
1009bf5e KM |
57 | if (swallow_optional_blanklines) { |
58 | if (n_real_blanklines == 1) | |
59 | n_real_blanklines = 0; | |
60 | } | |
61 | else { | |
62 | if (n_real_blanklines == 0) | |
63 | n_real_blanklines = 1; | |
64 | } | |
65 | while (--n_real_blanklines >= 0) | |
66 | putc('\n', output); | |
67 | n_real_blanklines = 0; | |
68 | if (ps.ind_level == 0) | |
69 | ps.ind_stmt = 0; /* this is a class A kludge. dont do | |
30f48914 KB |
70 | * additional statement indentation if we are |
71 | * at bracket level 0 */ | |
1009bf5e KM |
72 | |
73 | if (e_lab != s_lab || e_code != s_code) | |
74 | ++code_lines; /* keep count of lines with code */ | |
75 | ||
76 | ||
77 | if (e_lab != s_lab) { /* print lab, if any */ | |
78 | if (comment_open) { | |
79 | comment_open = 0; | |
80 | fprintf(output, ".*/\n"); | |
81 | } | |
82 | while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t')) | |
83 | e_lab--; | |
84 | cur_col = pad_output(1, compute_label_target()); | |
0c8ee79d KB |
85 | if (s_lab[0] == '#' && (strncmp(s_lab, "#else", 5) == 0 |
86 | || strncmp(s_lab, "#endif", 6) == 0)) { | |
87 | register char *s = s_lab; | |
88 | if (e_lab[-1] == '\n') e_lab--; | |
89 | do putc(*s++, output); | |
90 | while (s < e_lab && 'a' <= *s && *s<='z'); | |
91 | while ((*s == ' ' || *s == '\t') && s < e_lab) | |
92 | s++; | |
93 | if (s < e_lab) | |
94 | fprintf(output, s[0]=='/' && s[1]=='*' ? "\t%.*s" : "\t/* %.*s */", | |
95 | e_lab - s, s); | |
96 | } | |
97 | else fprintf(output, "%.*s", e_lab - s_lab, s_lab); | |
1009bf5e | 98 | cur_col = count_spaces(cur_col, s_lab); |
87ba9e01 | 99 | } |
1009bf5e KM |
100 | else |
101 | cur_col = 1; /* there is no label section */ | |
102 | ||
103 | ps.pcase = false; | |
104 | ||
105 | if (s_code != e_code) { /* print code section, if any */ | |
106 | register char *p; | |
107 | ||
108 | if (comment_open) { | |
109 | comment_open = 0; | |
110 | fprintf(output, ".*/\n"); | |
111 | } | |
112 | target_col = compute_code_target(); | |
113 | { | |
114 | register i; | |
115 | ||
116 | for (i = 0; i < ps.p_l_follow; i++) | |
117 | if (ps.paren_indents[i] >= 0) | |
118 | ps.paren_indents[i] = -(ps.paren_indents[i] + target_col); | |
119 | } | |
120 | cur_col = pad_output(cur_col, target_col); | |
121 | for (p = s_code; p < e_code; p++) | |
30f48914 | 122 | if (*p == (char) 0200) |
1009bf5e KM |
123 | fprintf(output, "%d", target_col * 7); |
124 | else | |
125 | putc(*p, output); | |
126 | cur_col = count_spaces(cur_col, s_code); | |
127 | } | |
128 | if (s_com != e_com) | |
129 | if (troff) { | |
30f48914 | 130 | int all_here = 0; |
1009bf5e KM |
131 | register char *p; |
132 | ||
133 | if (e_com[-1] == '/' && e_com[-2] == '*') | |
30f48914 | 134 | e_com -= 2, all_here++; |
1009bf5e KM |
135 | while (e_com > s_com && e_com[-1] == ' ') |
136 | e_com--; | |
137 | *e_com = 0; | |
138 | p = s_com; | |
139 | while (*p == ' ') | |
140 | p++; | |
141 | if (p[0] == '/' && p[1] == '*') | |
30f48914 | 142 | p += 2, all_here++; |
1009bf5e KM |
143 | else if (p[0] == '*') |
144 | p += p[1] == '/' ? 2 : 1; | |
145 | while (*p == ' ') | |
146 | p++; | |
147 | if (*p == 0) | |
148 | goto inhibit_newline; | |
30f48914 KB |
149 | if (comment_open < 2 && ps.box_com) { |
150 | comment_open = 0; | |
151 | fprintf(output, ".*/\n"); | |
152 | } | |
153 | if (comment_open == 0) { | |
1009bf5e KM |
154 | if ('a' <= *p && *p <= 'z') |
155 | *p = *p + 'A' - 'a'; | |
30f48914 KB |
156 | if (e_com - p < 50 && all_here == 2) { |
157 | register char *follow = p; | |
158 | fprintf(output, "\n.nr C! \\w\1"); | |
159 | while (follow < e_com) { | |
160 | switch (*follow) { | |
161 | case '\n': | |
162 | putc(' ', output); | |
163 | case 1: | |
164 | break; | |
165 | case '\\': | |
166 | putc('\\', output); | |
167 | default: | |
168 | putc(*follow, output); | |
169 | } | |
170 | follow++; | |
171 | } | |
172 | putc(1, output); | |
1009bf5e | 173 | } |
30f48914 KB |
174 | fprintf(output, "\n./* %dp %d %dp\n", |
175 | ps.com_col * 7, | |
176 | (s_code != e_code || s_lab != e_lab) - ps.box_com, | |
177 | target_col * 7); | |
1009bf5e | 178 | } |
30f48914 | 179 | comment_open = 1 + ps.box_com; |
1009bf5e KM |
180 | while (*p) { |
181 | if (*p == BACKSLASH) | |
182 | putc(BACKSLASH, output); | |
183 | putc(*p++, output); | |
184 | } | |
185 | } | |
186 | else { /* print comment, if any */ | |
187 | register target = ps.com_col; | |
188 | register char *com_st = s_com; | |
189 | ||
190 | target += ps.comment_delta; | |
30f48914 KB |
191 | while (*com_st == '\t') |
192 | com_st++, target += 8; /* ? */ | |
1009bf5e | 193 | while (target <= 0) |
30f48914 KB |
194 | if (*com_st == ' ') |
195 | target++, com_st++; | |
196 | else if (*com_st == '\t') | |
197 | target = ((target - 1) & ~7) + 9, com_st++; | |
1009bf5e KM |
198 | else |
199 | target = 1; | |
30f48914 KB |
200 | if (cur_col > target) { /* if comment cant fit on this line, |
201 | * put it on next line */ | |
1009bf5e KM |
202 | putc('\n', output); |
203 | cur_col = 1; | |
204 | ++ps.out_lines; | |
205 | } | |
30f48914 KB |
206 | while (e_com > com_st && isspace(e_com[-1])) |
207 | e_com--; | |
1009bf5e KM |
208 | cur_col = pad_output(cur_col, target); |
209 | if (!ps.box_com) { | |
30f48914 KB |
210 | if (star_comment_cont && (com_st[1] != '*' || e_com <= com_st + 1)) |
211 | if (com_st[1] == ' ' && com_st[0] == ' ' && e_com > com_st + 1) | |
1009bf5e KM |
212 | com_st[1] = '*'; |
213 | else | |
214 | fwrite(" * ", com_st[0] == '\t' ? 2 : com_st[0] == '*' ? 1 : 3, 1, output); | |
215 | } | |
216 | fwrite(com_st, e_com - com_st, 1, output); | |
217 | ps.comment_delta = ps.n_comment_delta; | |
218 | cur_col = count_spaces(cur_col, com_st); | |
219 | ++ps.com_lines; /* count lines with comments */ | |
220 | } | |
221 | if (ps.use_ff) | |
222 | putc('\014', output); | |
223 | else | |
224 | putc('\n', output); | |
225 | inhibit_newline: | |
226 | ++ps.out_lines; | |
227 | if (ps.just_saw_decl == 1 && blanklines_after_declarations) { | |
228 | prefix_blankline_requested = 1; | |
229 | ps.just_saw_decl = 0; | |
230 | } | |
231 | else | |
232 | prefix_blankline_requested = postfix_blankline_requested; | |
233 | postfix_blankline_requested = 0; | |
87ba9e01 | 234 | } |
1009bf5e | 235 | ps.decl_on_line = ps.in_decl; /* if we are in the middle of a |
30f48914 KB |
236 | * declaration, remember that fact for |
237 | * proper comment indentation */ | |
1009bf5e KM |
238 | ps.ind_stmt = ps.in_stmt & ~ps.in_decl; /* next line should be |
239 | * indented if we have not | |
30f48914 KB |
240 | * completed this stmt and if |
241 | * we are not in the middle of | |
242 | * a declaration */ | |
1009bf5e KM |
243 | ps.use_ff = false; |
244 | ps.dumped_decl_indent = 0; | |
245 | *(e_lab = s_lab) = '\0'; /* reset buffers */ | |
87ba9e01 KM |
246 | *(e_code = s_code) = '\0'; |
247 | *(e_com = s_com) = '\0'; | |
1009bf5e KM |
248 | ps.ind_level = ps.i_l_follow; |
249 | ps.paren_level = ps.p_l_follow; | |
250 | paren_target = -ps.paren_indents[ps.paren_level - 1]; | |
30f48914 | 251 | not_first_line = 1; |
87ba9e01 | 252 | return; |
1a43f1ba | 253 | } |
87ba9e01 | 254 | |
30f48914 KB |
255 | compute_code_target() |
256 | { | |
1009bf5e | 257 | register target_col = ps.ind_size * ps.ind_level + 1; |
87ba9e01 | 258 | |
1009bf5e KM |
259 | if (ps.paren_level) |
260 | if (!lineup_to_parens) | |
261 | target_col += continuation_indent * ps.paren_level; | |
262 | else { | |
263 | register w; | |
264 | register t = paren_target; | |
265 | ||
266 | if ((w = count_spaces(t, s_code) - max_col) > 0 | |
30f48914 | 267 | && count_spaces(target_col, s_code) <= max_col) { |
1009bf5e KM |
268 | t -= w + 1; |
269 | if (t > target_col) | |
270 | target_col = t; | |
271 | } | |
272 | else | |
273 | target_col = t; | |
274 | } | |
275 | else if (ps.ind_stmt) | |
276 | target_col += continuation_indent; | |
277 | return target_col; | |
278 | } | |
87ba9e01 | 279 | |
1009bf5e KM |
280 | compute_label_target() |
281 | { | |
282 | return | |
30f48914 | 283 | ps.pcase ? (int) (case_ind * ps.ind_size) + 1 |
1009bf5e | 284 | : *s_lab == '#' ? 1 |
30f48914 | 285 | : ps.ind_size * (ps.ind_level - label_offset) + 1; |
1009bf5e | 286 | } |
87ba9e01 | 287 | |
87ba9e01 | 288 | |
1009bf5e | 289 | /* |
30f48914 KB |
290 | * Copyright (C) 1976 by the Board of Trustees of the University of Illinois |
291 | * | |
292 | * All rights reserved | |
293 | * | |
294 | * | |
295 | * NAME: fill_buffer | |
296 | * | |
297 | * FUNCTION: Reads one block of input into input_buffer | |
298 | * | |
299 | * HISTORY: initial coding November 1976 D A Willcox of CAC 1/7/77 A | |
300 | * Willcox of CAC Added check for switch back to partly full input | |
301 | * buffer from temporary buffer | |
302 | * | |
0c8ee79d | 303 | */ |
1009bf5e KM |
304 | int |
305 | fill_buffer() | |
306 | { /* this routine reads stuff from the input */ | |
1009bf5e KM |
307 | register char *p; |
308 | register int i; | |
309 | register FILE *f = input; | |
310 | ||
30f48914 | 311 | if (bp_save != 0) { /* there is a partly filled input buffer left */ |
1009bf5e | 312 | buf_ptr = bp_save; /* dont read anything, just switch buffers */ |
87ba9e01 KM |
313 | buf_end = be_save; |
314 | bp_save = be_save = 0; | |
315 | if (buf_ptr < buf_end) | |
30f48914 KB |
316 | return; /* only return if there is really something in |
317 | * this buffer */ | |
87ba9e01 | 318 | } |
0c8ee79d KB |
319 | for (p = in_buffer;;) { |
320 | if (p >= in_buffer_limit) { | |
321 | register size = (in_buffer_limit - in_buffer) * 2 + 10; | |
322 | register offset = p - in_buffer; | |
323 | in_buffer = (char *) realloc(in_buffer, size); | |
324 | if (in_buffer == 0) | |
325 | err("input line too long"); | |
326 | p = in_buffer + offset; | |
327 | in_buffer_limit = in_buffer + size - 2; | |
328 | } | |
86591296 KB |
329 | if ((i = getc(f)) == EOF) { |
330 | *p++ = ' '; | |
331 | *p++ = '\n'; | |
332 | had_eof = true; | |
333 | break; | |
334 | } | |
335 | *p++ = i; | |
336 | if (i == '\n') | |
337 | break; | |
87ba9e01 | 338 | } |
0c8ee79d | 339 | buf_ptr = in_buffer; |
1009bf5e | 340 | buf_end = p; |
1a43f1ba | 341 | if (p[-2] == '/' && p[-3] == '*') { |
1009bf5e KM |
342 | if (in_buffer[3] == 'I' && strncmp(in_buffer, "/**INDENT**", 11) == 0) |
343 | fill_buffer(); /* flush indent error message */ | |
344 | else { | |
345 | int com = 0; | |
346 | ||
347 | p = in_buffer; | |
348 | while (*p == ' ' || *p == '\t') | |
349 | p++; | |
350 | if (*p == '/' && p[1] == '*') { | |
351 | p += 2; | |
352 | while (*p == ' ' || *p == '\t') | |
353 | p++; | |
354 | if (p[0] == 'I' && p[1] == 'N' && p[2] == 'D' && p[3] == 'E' | |
30f48914 | 355 | && p[4] == 'N' && p[5] == 'T') { |
1009bf5e KM |
356 | p += 6; |
357 | while (*p == ' ' || *p == '\t') | |
358 | p++; | |
359 | if (*p == '*') | |
360 | com = 1; | |
361 | else if (*p == 'O') | |
362 | if (*++p == 'N') | |
363 | p++, com = 1; | |
364 | else if (*p == 'F' && *++p == 'F') | |
365 | p++, com = 2; | |
366 | while (*p == ' ' || *p == '\t') | |
367 | p++; | |
368 | if (p[0] == '*' && p[1] == '/' && p[2] == '\n' && com) { | |
369 | if (s_com != e_com || s_lab != e_lab || s_code != e_code) | |
370 | dump_line(); | |
371 | if (!(inhibit_formatting = com - 1)) { | |
372 | n_real_blanklines = 0; | |
373 | postfix_blankline_requested = 0; | |
374 | prefix_blankline_requested = 0; | |
375 | suppress_blanklines = 1; | |
376 | } | |
377 | } | |
378 | } | |
379 | } | |
380 | } | |
381 | } | |
382 | if (inhibit_formatting) { | |
383 | p = in_buffer; | |
384 | do | |
385 | putc(*p, output); | |
386 | while (*p++ != '\n'); | |
387 | } | |
87ba9e01 | 388 | return; |
1a43f1ba | 389 | } |
87ba9e01 | 390 | |
1009bf5e | 391 | /* |
30f48914 KB |
392 | * Copyright (C) 1976 by the Board of Trustees of the University of Illinois |
393 | * | |
394 | * All rights reserved | |
395 | * | |
396 | * | |
397 | * NAME: pad_output | |
398 | * | |
399 | * FUNCTION: Writes tabs and spaces to move the current column up to the desired | |
400 | * position. | |
401 | * | |
402 | * ALGORITHM: Put tabs and/or blanks into pobuf, then write pobuf. | |
403 | * | |
1009bf5e | 404 | * PARAMETERS: current integer The current column target |
30f48914 KB |
405 | * nteger The desired column |
406 | * | |
407 | * RETURNS: Integer value of the new column. (If current >= target, no action is | |
408 | * taken, and current is returned. | |
409 | * | |
410 | * GLOBALS: None | |
411 | * | |
412 | * CALLS: write (sys) | |
413 | * | |
414 | * CALLED BY: dump_line | |
415 | * | |
416 | * HISTORY: initial coding November 1976 D A Willcox of CAC | |
417 | * | |
0c8ee79d | 418 | */ |
30f48914 KB |
419 | pad_output(current, target) /* writes tabs and blanks (if necessary) to |
420 | * get the current output position up to the | |
421 | * target column */ | |
1009bf5e KM |
422 | int current; /* the current column value */ |
423 | int target; /* position we want it at */ | |
87ba9e01 | 424 | { |
1009bf5e | 425 | register int curr; /* internal column pointer */ |
87ba9e01 KM |
426 | register int tcur; |
427 | ||
1009bf5e KM |
428 | if (troff) |
429 | fprintf(output, "\\h'|%dp'", (target - 1) * 7); | |
430 | else { | |
431 | if (current >= target) | |
432 | return (current); /* line is already long enough */ | |
433 | curr = current; | |
434 | while ((tcur = ((curr - 1) & tabmask) + tabsize + 1) <= target) { | |
435 | putc('\t', output); | |
87ba9e01 KM |
436 | curr = tcur; |
437 | } | |
1009bf5e KM |
438 | while (curr++ < target) |
439 | putc(' ', output); /* pad with final blanks */ | |
87ba9e01 | 440 | } |
87ba9e01 | 441 | return (target); |
1a43f1ba | 442 | } |
87ba9e01 | 443 | |
1009bf5e | 444 | /* |
30f48914 KB |
445 | * Copyright (C) 1976 by the Board of Trustees of the University of Illinois |
446 | * | |
447 | * All rights reserved | |
448 | * | |
449 | * | |
450 | * NAME: count_spaces | |
451 | * | |
1009bf5e | 452 | * FUNCTION: Find out where printing of a given string will leave the current |
30f48914 KB |
453 | * character position on output. |
454 | * | |
1009bf5e | 455 | * ALGORITHM: Run thru input string and add appropriate values to current |
30f48914 KB |
456 | * position. |
457 | * | |
458 | * RETURNS: Integer value of position after printing "buffer" starting in column | |
459 | * "current". | |
460 | * | |
461 | * HISTORY: initial coding November 1976 D A Willcox of CAC | |
462 | * | |
0c8ee79d | 463 | */ |
1009bf5e KM |
464 | int |
465 | count_spaces(current, buffer) | |
1009bf5e KM |
466 | /* |
467 | * this routine figures out where the character position will be after | |
30f48914 | 468 | * printing the text in buffer starting at column "current" |
1009bf5e KM |
469 | */ |
470 | int current; | |
471 | char *buffer; | |
87ba9e01 | 472 | { |
1009bf5e KM |
473 | register char *buf; /* used to look thru buffer */ |
474 | register int cur; /* current character counter */ | |
87ba9e01 KM |
475 | |
476 | cur = current; | |
477 | ||
478 | for (buf = buffer; *buf != '\0'; ++buf) { | |
479 | switch (*buf) { | |
480 | ||
30f48914 KB |
481 | case '\n': |
482 | case 014: /* form feed */ | |
483 | cur = 1; | |
484 | break; | |
87ba9e01 | 485 | |
30f48914 KB |
486 | case '\t': |
487 | cur = ((cur - 1) & tabmask) + tabsize + 1; | |
488 | break; | |
87ba9e01 | 489 | |
1a43f1ba | 490 | case 010: /* backspace */ |
30f48914 KB |
491 | --cur; |
492 | break; | |
87ba9e01 | 493 | |
30f48914 KB |
494 | default: |
495 | ++cur; | |
496 | break; | |
1009bf5e KM |
497 | } /* end of switch */ |
498 | } /* end of for loop */ | |
87ba9e01 | 499 | return (cur); |
1a43f1ba | 500 | } |
87ba9e01 | 501 | |
95891db1 | 502 | int found_err; |
1a43f1ba | 503 | /* VARARGS2 */ |
1009bf5e | 504 | diag(level, msg, a, b) |
2b8540ff | 505 | char *msg; |
87ba9e01 | 506 | { |
95891db1 KB |
507 | if (level) |
508 | found_err = 1; | |
1009bf5e KM |
509 | if (output == stdout) { |
510 | fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no); | |
511 | fprintf(stdout, msg, a, b); | |
512 | fprintf(stdout, " */\n"); | |
87ba9e01 | 513 | } |
1009bf5e KM |
514 | else { |
515 | fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no); | |
516 | fprintf(stderr, msg, a, b); | |
517 | fprintf(stderr, "\n"); | |
87ba9e01 | 518 | } |
87ba9e01 | 519 | } |
30f48914 KB |
520 | |
521 | writefdef(f, nm) | |
522 | register struct fstate *f; | |
523 | { | |
524 | fprintf(output, ".ds f%c %s\n.nr s%c %d\n", | |
525 | nm, f->font, nm, f->size); | |
526 | } | |
527 | ||
528 | char * | |
529 | chfont(of, nf, s) | |
530 | register struct fstate *of, | |
531 | *nf; | |
532 | char *s; | |
533 | { | |
534 | if (of->font[0] != nf->font[0] | |
535 | || of->font[1] != nf->font[1]) { | |
536 | *s++ = '\\'; | |
537 | *s++ = 'f'; | |
538 | if (nf->font[1]) { | |
539 | *s++ = '('; | |
540 | *s++ = nf->font[0]; | |
541 | *s++ = nf->font[1]; | |
542 | } | |
543 | else | |
544 | *s++ = nf->font[0]; | |
545 | } | |
546 | if (nf->size != of->size) { | |
547 | *s++ = '\\'; | |
548 | *s++ = 's'; | |
549 | if (nf->size < of->size) { | |
550 | *s++ = '-'; | |
551 | *s++ = '0' + of->size - nf->size; | |
552 | } | |
553 | else { | |
554 | *s++ = '+'; | |
555 | *s++ = '0' + nf->size - of->size; | |
556 | } | |
557 | } | |
558 | return s; | |
559 | } | |
560 | ||
561 | ||
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562 | parsefont(f, s0) |
563 | register struct fstate *f; | |
564 | char *s0; | |
565 | { | |
566 | register char *s = s0; | |
567 | int sizedelta = 0; | |
568 | bzero(f, sizeof *f); | |
569 | while (*s) { | |
570 | if (isdigit(*s)) | |
571 | f->size = f->size * 10 + *s - '0'; | |
572 | else if (isupper(*s)) | |
573 | if (f->font[0]) | |
574 | f->font[1] = *s; | |
575 | else | |
576 | f->font[0] = *s; | |
577 | else if (*s == 'c') | |
578 | f->allcaps = 1; | |
579 | else if (*s == '+') | |
580 | sizedelta++; | |
581 | else if (*s == '-') | |
582 | sizedelta--; | |
583 | else { | |
584 | fprintf(stderr, "indent: bad font specification: %s\n", s0); | |
585 | exit(1); | |
586 | } | |
587 | s++; | |
588 | } | |
589 | if (f->font[0] == 0) | |
590 | f->font[0] = 'R'; | |
591 | if (bodyf.size == 0) | |
592 | bodyf.size = 11; | |
593 | if (f->size == 0) | |
594 | f->size = bodyf.size + sizedelta; | |
595 | else if (sizedelta > 0) | |
596 | f->size += bodyf.size; | |
597 | else | |
598 | f->size = bodyf.size - f->size; | |
599 | } |