Annotation of mandoc/term_ascii.c, Revision 1.34
1.34 ! schwarze 1: /* $Id: term_ascii.c,v 1.33 2014/09/03 05:22:45 schwarze Exp $ */
1.1 kristaps 2: /*
1.18 schwarze 3: * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.23 schwarze 4: * Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18: #include "config.h"
19:
20: #include <sys/types.h>
21:
1.31 schwarze 22: #if HAVE_WCHAR
1.28 schwarze 23: #include <locale.h>
1.15 kristaps 24: #endif
1.1 kristaps 25: #include <stdint.h>
26: #include <stdio.h>
27: #include <stdlib.h>
1.2 kristaps 28: #include <unistd.h>
1.31 schwarze 29: #if HAVE_WCHAR
1.28 schwarze 30: #include <wchar.h>
1.15 kristaps 31: #endif
1.1 kristaps 32:
1.11 kristaps 33: #include "mandoc.h"
1.22 schwarze 34: #include "mandoc_aux.h"
1.1 kristaps 35: #include "out.h"
36: #include "term.h"
37: #include "main.h"
38:
1.14 kristaps 39: static struct termp *ascii_init(enum termenc, char *);
1.8 kristaps 40: static double ascii_hspan(const struct termp *,
1.7 kristaps 41: const struct roffsu *);
1.13 kristaps 42: static size_t ascii_width(const struct termp *, int);
1.7 kristaps 43: static void ascii_advance(struct termp *, size_t);
44: static void ascii_begin(struct termp *);
45: static void ascii_end(struct termp *);
1.1 kristaps 46: static void ascii_endline(struct termp *);
1.13 kristaps 47: static void ascii_letter(struct termp *, int);
1.24 schwarze 48: static void ascii_setwidth(struct termp *, int, size_t);
1.1 kristaps 49:
1.31 schwarze 50: #if HAVE_WCHAR
1.15 kristaps 51: static void locale_advance(struct termp *, size_t);
52: static void locale_endline(struct termp *);
53: static void locale_letter(struct termp *, int);
54: static size_t locale_width(const struct termp *, int);
55: #endif
56:
1.25 schwarze 57:
1.14 kristaps 58: static struct termp *
59: ascii_init(enum termenc enc, char *outopts)
1.1 kristaps 60: {
1.33 schwarze 61: const char *toks[5];
1.1 kristaps 62: char *v;
1.14 kristaps 63: struct termp *p;
1.1 kristaps 64:
1.14 kristaps 65: p = mandoc_calloc(1, sizeof(struct termp));
1.1 kristaps 66:
1.5 kristaps 67: p->tabwidth = 5;
1.23 schwarze 68: p->defrmargin = p->lastrmargin = 78;
1.5 kristaps 69:
1.1 kristaps 70: p->begin = ascii_begin;
71: p->end = ascii_end;
1.15 kristaps 72: p->hspan = ascii_hspan;
73: p->type = TERMTYPE_CHAR;
74:
75: p->enc = TERMENC_ASCII;
76: p->advance = ascii_advance;
1.1 kristaps 77: p->endline = ascii_endline;
1.7 kristaps 78: p->letter = ascii_letter;
1.23 schwarze 79: p->setwidth = ascii_setwidth;
1.5 kristaps 80: p->width = ascii_width;
1.1 kristaps 81:
1.31 schwarze 82: #if HAVE_WCHAR
1.17 kristaps 83: if (TERMENC_ASCII != enc) {
84: v = TERMENC_LOCALE == enc ?
1.25 schwarze 85: setlocale(LC_ALL, "") :
86: setlocale(LC_CTYPE, "en_US.UTF-8");
1.17 kristaps 87: if (NULL != v && MB_CUR_MAX > 1) {
1.15 kristaps 88: p->enc = enc;
89: p->advance = locale_advance;
90: p->endline = locale_endline;
91: p->letter = locale_letter;
92: p->width = locale_width;
93: }
1.17 kristaps 94: }
1.15 kristaps 95: #endif
96:
1.19 schwarze 97: toks[0] = "indent";
98: toks[1] = "width";
1.20 schwarze 99: toks[2] = "mdoc";
1.33 schwarze 100: toks[3] = "synopsis";
101: toks[4] = NULL;
1.1 kristaps 102:
103: while (outopts && *outopts)
104: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.25 schwarze 105: case 0:
1.19 schwarze 106: p->defindent = (size_t)atoi(v);
107: break;
1.25 schwarze 108: case 1:
1.1 kristaps 109: p->defrmargin = (size_t)atoi(v);
1.20 schwarze 110: break;
1.25 schwarze 111: case 2:
1.20 schwarze 112: /*
113: * Temporary, undocumented mode
114: * to imitate mdoc(7) output style.
115: */
116: p->mdocstyle = 1;
117: p->defindent = 5;
1.33 schwarze 118: break;
119: case 3:
120: p->synopsisonly = 1;
1.1 kristaps 121: break;
122: default:
123: break;
124: }
125:
126: /* Enforce a lower boundary. */
127: if (p->defrmargin < 58)
128: p->defrmargin = 58;
129:
130: return(p);
1.5 kristaps 131: }
132:
1.14 kristaps 133: void *
134: ascii_alloc(char *outopts)
135: {
136:
137: return(ascii_init(TERMENC_ASCII, outopts));
138: }
1.17 kristaps 139:
140: void *
141: utf8_alloc(char *outopts)
142: {
143:
144: return(ascii_init(TERMENC_UTF8, outopts));
145: }
146:
1.14 kristaps 147: void *
148: locale_alloc(char *outopts)
149: {
150:
151: return(ascii_init(TERMENC_LOCALE, outopts));
1.23 schwarze 152: }
153:
154: static void
1.24 schwarze 155: ascii_setwidth(struct termp *p, int iop, size_t width)
1.23 schwarze 156: {
157:
1.24 schwarze 158: p->rmargin = p->defrmargin;
159: if (0 < iop)
160: p->defrmargin += width;
161: else if (0 > iop)
162: p->defrmargin -= width;
163: else
164: p->defrmargin = width ? width : p->lastrmargin;
165: p->lastrmargin = p->rmargin;
166: p->rmargin = p->maxrmargin = p->defrmargin;
1.34 ! schwarze 167: }
! 168:
! 169: const char *
! 170: ascii_uc2str(int uc)
! 171: {
! 172: static const char nbrsp[2] = { ASCII_NBRSP, '\0' };
! 173: static const char *tab[] = {
! 174: "<NUL>","<SOH>","<STX>","<ETX>","<EOT>","<ENQ>","<ACK>","<BEL>",
! 175: "<BS>", "\t", "<LF>", "<VT>", "<FF>", "<CR>", "<SO>", "<SI>",
! 176: "<DLE>","<DC1>","<DC2>","<DC3>","<DC4>","<NAK>","<SYN>","<ETB>",
! 177: "<CAN>","<EM>", "<SUB>","<ESC>","<FS>", "<GS>", "<RS>", "<US>",
! 178: " ", "!", "\"", "#", "$", "%", "&", "'",
! 179: "(", ")", "*", "+", ",", "-", ".", "/",
! 180: "0", "1", "2", "3", "4", "5", "6", "7",
! 181: "8", "9", ":", ";", "<", "=", ">", "?",
! 182: "@", "A", "B", "C", "D", "E", "F", "G",
! 183: "H", "I", "J", "K", "L", "M", "N", "O",
! 184: "P", "Q", "R", "S", "T", "U", "V", "W",
! 185: "X", "Y", "Z", "[", "\\", "]", "^", "_",
! 186: "`", "a", "b", "c", "d", "e", "f", "g",
! 187: "h", "i", "j", "k", "l", "m", "n", "o",
! 188: "p", "q", "r", "s", "t", "u", "v", "w",
! 189: "x", "y", "z", "{", "|", "}", "~", "<DEL>",
! 190: "<80>", "<81>", "<82>", "<83>", "<84>", "<85>", "<86>", "<87>",
! 191: "<88>", "<89>", "<8A>", "<8B>", "<8C>", "<8D>", "<8E>", "<8F>",
! 192: "<90>", "<91>", "<92>", "<93>", "<94>", "<95>", "<96>", "<97>",
! 193: "<99>", "<99>", "<9A>", "<9B>", "<9C>", "<9D>", "<9E>", "<9F>",
! 194: nbrsp, "!", "c", "GBP", "$?", "Y=", "|", "<sec>",
! 195: "\"", "(C)", "a.", "<<", "<not>","", "(R)", "-",
! 196: "<deg>","+-", "^2", "^3", "'", "<my>", "<par>","*",
! 197: ",", "^1", "o.", ">>", "1/4", "1/2", "3/4", "?",
! 198: "A", "A", "A", "A", "Ae", "Aa", "AE", "C",
! 199: "E", "E", "E", "E", "I", "I", "I", "I",
! 200: "D", "N", "O", "O", "O", "O", "Oe", "*",
! 201: "Oe", "U", "U", "U", "Ue", "Y", "Th", "ss",
! 202: "a", "a", "a", "a", "ae", "aa", "ae", "c",
! 203: "e", "e", "e", "e", "i", "i", "i", "i",
! 204: "d", "n", "o", "o", "o", "o", "oe", "/",
! 205: "oe", "u", "u", "u", "ue", "y", "th", "y",
! 206: "A", "a", "A", "a", "A", "a", "C", "c",
! 207: "C", "c", "C", "c", "C", "c", "D", "d",
! 208: "D", "d", "E", "e", "E", "e", "E", "e",
! 209: "E", "e", "E", "e", "G", "g", "G", "g",
! 210: "G", "g", "G", "g", "H", "h", "H", "h",
! 211: "I", "i", "I", "i", "I", "i", "I", "i",
! 212: "I", "i", "IJ", "ij", "J", "j", "K", "k",
! 213: "q", "L", "l", "L", "l", "L", "l", "L",
! 214: "l", "L", "l", "N", "n", "N", "n", "N",
! 215: "n", "'n", "Ng", "ng", "O", "o", "O", "o",
! 216: "O", "o", "OE", "oe", "R", "r", "R", "r",
! 217: "R", "r", "S", "s", "S", "s", "S", "s",
! 218: "S", "s", "T", "t", "T", "t", "T", "t",
! 219: "U", "u", "U", "u", "U", "u", "U", "u",
! 220: "U", "u", "U", "u", "W", "w", "Y", "y",
! 221: "Y", "Z", "z", "Z", "z", "Z", "z", "s",
! 222: "b", "B", "B", "b", "6", "6", "O", "C",
! 223: "c", "D", "D", "D", "d", "d", "3", "@",
! 224: "E", "F", "f", "G", "G", "hv", "I", "I",
! 225: "K", "k", "l", "l", "W", "N", "n", "O",
! 226: "O", "o", "OI", "oi", "P", "p", "YR", "2",
! 227: "2", "SH", "sh", "t", "T", "t", "T", "U",
! 228: "u", "Y", "V", "Y", "y", "Z", "z", "ZH",
! 229: "ZH", "zh", "zh", "2", "5", "5", "ts", "w",
! 230: "|", "||", "|=", "!", "DZ", "Dz", "dz", "LJ",
! 231: "Lj", "lj", "NJ", "Nj", "nj", "A", "a", "I",
! 232: "i", "O", "o", "U", "u", "U", "u", "U",
! 233: "u", "U", "u", "U", "u", "@", "A", "a",
! 234: "A", "a", "AE", "ae", "G", "g", "G", "g",
! 235: "K", "k", "O", "o", "O", "o", "ZH", "zh",
! 236: "j", "DZ", "D", "dz", "G", "g", "HV", "W",
! 237: "N", "n", "A", "a", "AE", "ae", "O", "o"};
! 238:
! 239: if (uc < 0 || (size_t)uc >= sizeof(tab)/sizeof(tab[0]))
! 240: return("<?>");
! 241: return(tab[uc]);
1.14 kristaps 242: }
1.5 kristaps 243:
244: static size_t
1.13 kristaps 245: ascii_width(const struct termp *p, int c)
1.5 kristaps 246: {
247:
248: return(1);
1.1 kristaps 249: }
250:
251: void
252: ascii_free(void *arg)
253: {
254:
255: term_free((struct termp *)arg);
256: }
257:
258: static void
1.13 kristaps 259: ascii_letter(struct termp *p, int c)
1.1 kristaps 260: {
1.25 schwarze 261:
1.1 kristaps 262: putchar(c);
263: }
264:
265: static void
266: ascii_begin(struct termp *p)
267: {
268:
269: (*p->headf)(p, p->argf);
270: }
271:
272: static void
273: ascii_end(struct termp *p)
274: {
275:
276: (*p->footf)(p, p->argf);
277: }
278:
279: static void
280: ascii_endline(struct termp *p)
281: {
282:
283: putchar('\n');
284: }
285:
286: static void
287: ascii_advance(struct termp *p, size_t len)
288: {
1.25 schwarze 289: size_t i;
1.1 kristaps 290:
291: for (i = 0; i < len; i++)
292: putchar(' ');
293: }
1.7 kristaps 294:
1.8 kristaps 295: static double
1.7 kristaps 296: ascii_hspan(const struct termp *p, const struct roffsu *su)
297: {
298: double r;
299:
300: /*
1.29 kristaps 301: * Approximate based on character width.
302: * None of these will be actually correct given that an inch on
303: * the screen depends on character size, terminal, etc., etc.
1.7 kristaps 304: */
305: switch (su->unit) {
1.29 kristaps 306: case SCALE_BU:
307: r = su->scale * 10.0 / 240.0;
308: break;
1.25 schwarze 309: case SCALE_CM:
1.29 kristaps 310: r = su->scale * 10.0 / 2.54;
311: break;
312: case SCALE_FS:
313: r = su->scale * 2730.666;
1.7 kristaps 314: break;
1.25 schwarze 315: case SCALE_IN:
1.27 schwarze 316: r = su->scale * 10.0;
1.7 kristaps 317: break;
1.29 kristaps 318: case SCALE_MM:
319: r = su->scale / 100.0;
320: break;
1.25 schwarze 321: case SCALE_PC:
1.29 kristaps 322: r = su->scale * 10.0 / 6.0;
1.7 kristaps 323: break;
1.25 schwarze 324: case SCALE_PT:
1.29 kristaps 325: r = su->scale * 10.0 / 72.0;
1.7 kristaps 326: break;
1.25 schwarze 327: case SCALE_VS:
1.27 schwarze 328: r = su->scale * 2.0 - 1.0;
1.7 kristaps 329: break;
1.29 kristaps 330: case SCALE_EN:
1.30 schwarze 331: /* FALLTHROUGH */
1.29 kristaps 332: case SCALE_EM:
1.7 kristaps 333: r = su->scale;
1.29 kristaps 334: break;
1.32 schwarze 335: default:
1.29 kristaps 336: abort();
1.30 schwarze 337: /* NOTREACHED */
1.7 kristaps 338: }
339:
1.8 kristaps 340: return(r);
1.7 kristaps 341: }
342:
1.31 schwarze 343: #if HAVE_WCHAR
1.15 kristaps 344: static size_t
345: locale_width(const struct termp *p, int c)
346: {
347: int rc;
348:
1.26 schwarze 349: if (c == ASCII_NBRSP)
350: c = ' ';
351: rc = wcwidth(c);
352: if (rc < 0)
353: rc = 0;
354: return(rc);
1.15 kristaps 355: }
356:
357: static void
358: locale_advance(struct termp *p, size_t len)
359: {
1.25 schwarze 360: size_t i;
1.15 kristaps 361:
362: for (i = 0; i < len; i++)
363: putwchar(L' ');
364: }
365:
366: static void
367: locale_endline(struct termp *p)
368: {
369:
370: putwchar(L'\n');
371: }
372:
373: static void
374: locale_letter(struct termp *p, int c)
375: {
1.25 schwarze 376:
1.15 kristaps 377: putwchar(c);
378: }
379: #endif
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