Annotation of mandoc/out.c, Revision 1.21
1.21 ! kristaps 1: /* $Id: out.c,v 1.20 2010/07/19 07:53:40 kristaps Exp $ */
1.1 kristaps 2: /*
1.18 kristaps 3: * Copyright (c) 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
8: *
9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16: */
1.12 kristaps 17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
1.1 kristaps 21: #include <sys/types.h>
22:
1.6 kristaps 23: #include <assert.h>
1.1 kristaps 24: #include <ctype.h>
1.3 kristaps 25: #include <stdio.h>
1.1 kristaps 26: #include <stdlib.h>
1.6 kristaps 27: #include <string.h>
1.7 kristaps 28: #include <time.h>
1.1 kristaps 29:
30: #include "out.h"
31:
1.3 kristaps 32: /*
33: * Convert a `scaling unit' to a consistent form, or fail. Scaling
1.5 kristaps 34: * units are documented in groff.7, mdoc.7, man.7.
1.3 kristaps 35: */
1.1 kristaps 36: int
1.5 kristaps 37: a2roffsu(const char *src, struct roffsu *dst, enum roffscale def)
1.1 kristaps 38: {
1.4 kristaps 39: char buf[BUFSIZ], hasd;
1.1 kristaps 40: int i;
1.3 kristaps 41: enum roffscale unit;
1.1 kristaps 42:
1.5 kristaps 43: if ('\0' == *src)
44: return(0);
45:
1.4 kristaps 46: i = hasd = 0;
47:
48: switch (*src) {
49: case ('+'):
50: src++;
51: break;
52: case ('-'):
53: buf[i++] = *src++;
54: break;
55: default:
56: break;
57: }
58:
1.5 kristaps 59: if ('\0' == *src)
60: return(0);
61:
1.4 kristaps 62: while (i < BUFSIZ) {
63: if ( ! isdigit((u_char)*src)) {
64: if ('.' != *src)
65: break;
66: else if (hasd)
67: break;
68: else
69: hasd = 1;
70: }
71: buf[i++] = *src++;
72: }
1.1 kristaps 73:
1.3 kristaps 74: if (BUFSIZ == i || (*src && *(src + 1)))
1.1 kristaps 75: return(0);
76:
1.4 kristaps 77: buf[i] = '\0';
1.1 kristaps 78:
1.3 kristaps 79: switch (*src) {
80: case ('c'):
81: unit = SCALE_CM;
82: break;
83: case ('i'):
84: unit = SCALE_IN;
85: break;
86: case ('P'):
87: unit = SCALE_PC;
88: break;
89: case ('p'):
90: unit = SCALE_PT;
91: break;
92: case ('f'):
93: unit = SCALE_FS;
94: break;
95: case ('v'):
96: unit = SCALE_VS;
97: break;
98: case ('m'):
99: unit = SCALE_EM;
100: break;
101: case ('\0'):
1.5 kristaps 102: if (SCALE_MAX == def)
103: return(0);
104: unit = SCALE_BU;
105: break;
1.3 kristaps 106: case ('u'):
107: unit = SCALE_BU;
108: break;
109: case ('M'):
110: unit = SCALE_MM;
111: break;
112: case ('n'):
113: unit = SCALE_EN;
114: break;
115: default:
1.1 kristaps 116: return(0);
1.3 kristaps 117: }
1.1 kristaps 118:
1.4 kristaps 119: if ((dst->scale = atof(buf)) < 0)
1.3 kristaps 120: dst->scale = 0;
121: dst->unit = unit;
122: return(1);
1.1 kristaps 123: }
1.6 kristaps 124:
125:
126: /*
127: * Correctly writes the time in nroff form, which differs from standard
128: * form in that a space isn't printed in lieu of the extra %e field for
129: * single-digit dates.
130: */
131: void
132: time2a(time_t t, char *dst, size_t sz)
133: {
134: struct tm tm;
135: char buf[5];
136: char *p;
137: size_t nsz;
138:
139: assert(sz > 1);
140: localtime_r(&t, &tm);
141:
142: p = dst;
143: nsz = 0;
144:
145: dst[0] = '\0';
146:
147: if (0 == (nsz = strftime(p, sz, "%B ", &tm)))
148: return;
149:
150: p += (int)nsz;
151: sz -= nsz;
152:
153: if (0 == strftime(buf, sizeof(buf), "%e, ", &tm))
154: return;
155:
156: nsz = strlcat(p, buf + (' ' == buf[0] ? 1 : 0), sz);
157:
158: if (nsz >= sz)
159: return;
160:
161: p += (int)nsz;
162: sz -= nsz;
163:
164: (void)strftime(p, sz, "%Y", &tm);
165: }
166:
1.8 kristaps 167:
168: int
1.18 kristaps 169: a2roffdeco(enum roffdeco *d, const char **word, size_t *sz)
1.8 kristaps 170: {
1.18 kristaps 171: int i, j, lim;
172: char term, c;
173: const char *wp;
1.8 kristaps 174:
175: *d = DECO_NONE;
1.18 kristaps 176: lim = i = 0;
177: term = '\0';
1.8 kristaps 178: wp = *word;
179:
1.18 kristaps 180: switch ((c = wp[i++])) {
1.8 kristaps 181: case ('('):
182: *d = DECO_SPECIAL;
1.18 kristaps 183: lim = 2;
184: break;
1.14 kristaps 185: case ('F'):
186: /* FALLTHROUGH */
187: case ('f'):
1.18 kristaps 188: *d = 'F' == c ? DECO_FFONT : DECO_FONT;
189:
190: switch (wp[i++]) {
191: case ('('):
192: lim = 2;
193: break;
194: case ('['):
195: term = ']';
196: break;
1.14 kristaps 197: case ('3'):
198: /* FALLTHROUGH */
199: case ('B'):
200: *d = DECO_BOLD;
1.18 kristaps 201: return(i);
1.14 kristaps 202: case ('2'):
203: /* FALLTHROUGH */
204: case ('I'):
205: *d = DECO_ITALIC;
1.18 kristaps 206: return(i);
1.14 kristaps 207: case ('P'):
208: *d = DECO_PREVIOUS;
1.18 kristaps 209: return(i);
1.14 kristaps 210: case ('1'):
211: /* FALLTHROUGH */
212: case ('R'):
213: *d = DECO_ROMAN;
1.18 kristaps 214: return(i);
1.14 kristaps 215: default:
1.18 kristaps 216: i--;
217: lim = 1;
1.14 kristaps 218: break;
219: }
1.18 kristaps 220: break;
1.19 kristaps 221: case ('M'):
222: /* FALLTHROUGH */
223: case ('m'):
1.20 kristaps 224: /* FALLTHROUGH */
225: case ('*'):
226: if ('*' == c)
227: *d = DECO_RESERVED;
228:
1.18 kristaps 229: switch (wp[i++]) {
1.8 kristaps 230: case ('('):
1.18 kristaps 231: lim = 2;
232: break;
1.8 kristaps 233: case ('['):
1.18 kristaps 234: term = ']';
235: break;
1.8 kristaps 236: default:
1.18 kristaps 237: i--;
238: lim = 1;
1.14 kristaps 239: break;
1.8 kristaps 240: }
1.18 kristaps 241: break;
1.8 kristaps 242: case ('s'):
1.18 kristaps 243: if ('+' == wp[i] || '-' == wp[i])
244: i++;
1.8 kristaps 245:
1.18 kristaps 246: j = ('s' != wp[i - 1]);
1.8 kristaps 247:
1.18 kristaps 248: switch (wp[i++]) {
249: case ('('):
250: lim = 2;
251: break;
252: case ('['):
253: term = ']';
254: break;
1.10 kristaps 255: case ('\''):
1.18 kristaps 256: term = '\'';
1.10 kristaps 257: break;
258: default:
1.18 kristaps 259: i--;
260: lim = 1;
1.10 kristaps 261: break;
1.8 kristaps 262: }
263:
1.18 kristaps 264: if ('+' == wp[i] || '-' == wp[i]) {
265: if (j++)
266: return(i);
267: i++;
268: }
269:
270: if (0 == j)
271: return(i);
272: break;
273: case ('['):
274: *d = DECO_SPECIAL;
275: term = ']';
276: break;
277: case ('c'):
278: *d = DECO_NOSPACE;
279: return(i);
280: default:
1.21 ! kristaps 281: *d = DECO_SSPECIAL;
1.18 kristaps 282: i--;
283: lim = 1;
284: break;
285: }
1.8 kristaps 286:
1.18 kristaps 287: assert(term || lim);
288: *word = &wp[i];
1.8 kristaps 289:
1.18 kristaps 290: if (term) {
291: j = i;
292: while (wp[i] && wp[i] != term)
293: i++;
294: if ('\0' == wp[i]) {
295: *d = DECO_NONE;
296: return(i);
1.8 kristaps 297: }
1.10 kristaps 298:
1.18 kristaps 299: assert(i >= j);
300: *sz = (size_t)(i - j);
1.8 kristaps 301:
1.18 kristaps 302: return(i + 1);
303: }
1.8 kristaps 304:
1.18 kristaps 305: assert(lim > 0);
306: *sz = (size_t)lim;
1.11 kristaps 307:
1.18 kristaps 308: for (j = 0; wp[i] && j < lim; j++)
309: i++;
310: if (j < lim)
311: *d = DECO_NONE;
1.8 kristaps 312:
1.18 kristaps 313: return(i);
1.8 kristaps 314: }
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