Annotation of mandoc/term_ascii.c, Revision 1.38
1.38 ! schwarze 1: /* $Id: term_ascii.c,v 1.37 2014/10/28 02:43:59 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:
1.38 ! schwarze 39: static struct termp *ascii_init(enum termenc,
! 40: const struct mchars *, char *);
1.8 kristaps 41: static double ascii_hspan(const struct termp *,
1.7 kristaps 42: const struct roffsu *);
1.13 kristaps 43: static size_t ascii_width(const struct termp *, int);
1.7 kristaps 44: static void ascii_advance(struct termp *, size_t);
45: static void ascii_begin(struct termp *);
46: static void ascii_end(struct termp *);
1.1 kristaps 47: static void ascii_endline(struct termp *);
1.13 kristaps 48: static void ascii_letter(struct termp *, int);
1.24 schwarze 49: static void ascii_setwidth(struct termp *, int, size_t);
1.1 kristaps 50:
1.31 schwarze 51: #if HAVE_WCHAR
1.15 kristaps 52: static void locale_advance(struct termp *, size_t);
53: static void locale_endline(struct termp *);
54: static void locale_letter(struct termp *, int);
55: static size_t locale_width(const struct termp *, int);
56: #endif
57:
1.25 schwarze 58:
1.14 kristaps 59: static struct termp *
1.38 ! schwarze 60: ascii_init(enum termenc enc, const struct mchars *mchars, char *outopts)
1.1 kristaps 61: {
1.33 schwarze 62: const char *toks[5];
1.1 kristaps 63: char *v;
1.14 kristaps 64: struct termp *p;
1.1 kristaps 65:
1.14 kristaps 66: p = mandoc_calloc(1, sizeof(struct termp));
1.1 kristaps 67:
1.38 ! schwarze 68: p->symtab = mchars;
1.5 kristaps 69: p->tabwidth = 5;
1.23 schwarze 70: p->defrmargin = p->lastrmargin = 78;
1.5 kristaps 71:
1.1 kristaps 72: p->begin = ascii_begin;
73: p->end = ascii_end;
1.15 kristaps 74: p->hspan = ascii_hspan;
75: p->type = TERMTYPE_CHAR;
76:
77: p->enc = TERMENC_ASCII;
78: p->advance = ascii_advance;
1.1 kristaps 79: p->endline = ascii_endline;
1.7 kristaps 80: p->letter = ascii_letter;
1.23 schwarze 81: p->setwidth = ascii_setwidth;
1.5 kristaps 82: p->width = ascii_width;
1.1 kristaps 83:
1.31 schwarze 84: #if HAVE_WCHAR
1.17 kristaps 85: if (TERMENC_ASCII != enc) {
86: v = TERMENC_LOCALE == enc ?
1.25 schwarze 87: setlocale(LC_ALL, "") :
88: setlocale(LC_CTYPE, "en_US.UTF-8");
1.17 kristaps 89: if (NULL != v && MB_CUR_MAX > 1) {
1.15 kristaps 90: p->enc = enc;
91: p->advance = locale_advance;
92: p->endline = locale_endline;
93: p->letter = locale_letter;
94: p->width = locale_width;
95: }
1.17 kristaps 96: }
1.15 kristaps 97: #endif
98:
1.19 schwarze 99: toks[0] = "indent";
100: toks[1] = "width";
1.20 schwarze 101: toks[2] = "mdoc";
1.33 schwarze 102: toks[3] = "synopsis";
103: toks[4] = NULL;
1.1 kristaps 104:
105: while (outopts && *outopts)
106: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.25 schwarze 107: case 0:
1.19 schwarze 108: p->defindent = (size_t)atoi(v);
109: break;
1.25 schwarze 110: case 1:
1.1 kristaps 111: p->defrmargin = (size_t)atoi(v);
1.20 schwarze 112: break;
1.25 schwarze 113: case 2:
1.20 schwarze 114: /*
115: * Temporary, undocumented mode
116: * to imitate mdoc(7) output style.
117: */
118: p->mdocstyle = 1;
119: p->defindent = 5;
1.33 schwarze 120: break;
121: case 3:
122: p->synopsisonly = 1;
1.1 kristaps 123: break;
124: default:
125: break;
126: }
127:
128: /* Enforce a lower boundary. */
129: if (p->defrmargin < 58)
130: p->defrmargin = 58;
131:
132: return(p);
1.5 kristaps 133: }
134:
1.14 kristaps 135: void *
1.38 ! schwarze 136: ascii_alloc(const struct mchars *mchars, char *outopts)
1.14 kristaps 137: {
138:
1.38 ! schwarze 139: return(ascii_init(TERMENC_ASCII, mchars, outopts));
1.14 kristaps 140: }
1.17 kristaps 141:
142: void *
1.38 ! schwarze 143: utf8_alloc(const struct mchars *mchars, char *outopts)
1.17 kristaps 144: {
145:
1.38 ! schwarze 146: return(ascii_init(TERMENC_UTF8, mchars, outopts));
1.17 kristaps 147: }
148:
1.14 kristaps 149: void *
1.38 ! schwarze 150: locale_alloc(const struct mchars *mchars, char *outopts)
1.14 kristaps 151: {
152:
1.38 ! schwarze 153: return(ascii_init(TERMENC_LOCALE, mchars, outopts));
1.23 schwarze 154: }
155:
156: static void
1.24 schwarze 157: ascii_setwidth(struct termp *p, int iop, size_t width)
1.23 schwarze 158: {
159:
1.24 schwarze 160: p->rmargin = p->defrmargin;
161: if (0 < iop)
162: p->defrmargin += width;
163: else if (0 > iop)
164: p->defrmargin -= width;
165: else
166: p->defrmargin = width ? width : p->lastrmargin;
167: p->lastrmargin = p->rmargin;
168: p->rmargin = p->maxrmargin = p->defrmargin;
1.34 schwarze 169: }
170:
1.5 kristaps 171: static size_t
1.13 kristaps 172: ascii_width(const struct termp *p, int c)
1.5 kristaps 173: {
174:
175: return(1);
1.1 kristaps 176: }
177:
178: void
179: ascii_free(void *arg)
180: {
181:
182: term_free((struct termp *)arg);
183: }
184:
185: static void
1.13 kristaps 186: ascii_letter(struct termp *p, int c)
1.1 kristaps 187: {
1.25 schwarze 188:
1.1 kristaps 189: putchar(c);
190: }
191:
192: static void
193: ascii_begin(struct termp *p)
194: {
195:
196: (*p->headf)(p, p->argf);
197: }
198:
199: static void
200: ascii_end(struct termp *p)
201: {
202:
203: (*p->footf)(p, p->argf);
204: }
205:
206: static void
207: ascii_endline(struct termp *p)
208: {
209:
210: putchar('\n');
211: }
212:
213: static void
214: ascii_advance(struct termp *p, size_t len)
215: {
1.25 schwarze 216: size_t i;
1.1 kristaps 217:
218: for (i = 0; i < len; i++)
219: putchar(' ');
220: }
1.7 kristaps 221:
1.8 kristaps 222: static double
1.7 kristaps 223: ascii_hspan(const struct termp *p, const struct roffsu *su)
224: {
225: double r;
226:
227: /*
1.29 kristaps 228: * Approximate based on character width.
229: * None of these will be actually correct given that an inch on
230: * the screen depends on character size, terminal, etc., etc.
1.7 kristaps 231: */
232: switch (su->unit) {
1.29 kristaps 233: case SCALE_BU:
234: r = su->scale * 10.0 / 240.0;
235: break;
1.25 schwarze 236: case SCALE_CM:
1.29 kristaps 237: r = su->scale * 10.0 / 2.54;
238: break;
239: case SCALE_FS:
240: r = su->scale * 2730.666;
1.7 kristaps 241: break;
1.25 schwarze 242: case SCALE_IN:
1.27 schwarze 243: r = su->scale * 10.0;
1.7 kristaps 244: break;
1.29 kristaps 245: case SCALE_MM:
246: r = su->scale / 100.0;
247: break;
1.25 schwarze 248: case SCALE_PC:
1.29 kristaps 249: r = su->scale * 10.0 / 6.0;
1.7 kristaps 250: break;
1.25 schwarze 251: case SCALE_PT:
1.29 kristaps 252: r = su->scale * 10.0 / 72.0;
1.7 kristaps 253: break;
1.25 schwarze 254: case SCALE_VS:
1.27 schwarze 255: r = su->scale * 2.0 - 1.0;
1.7 kristaps 256: break;
1.29 kristaps 257: case SCALE_EN:
1.30 schwarze 258: /* FALLTHROUGH */
1.29 kristaps 259: case SCALE_EM:
1.7 kristaps 260: r = su->scale;
1.29 kristaps 261: break;
1.32 schwarze 262: default:
1.29 kristaps 263: abort();
1.30 schwarze 264: /* NOTREACHED */
1.7 kristaps 265: }
266:
1.8 kristaps 267: return(r);
1.36 schwarze 268: }
269:
270: const char *
271: ascii_uc2str(int uc)
272: {
273: static const char nbrsp[2] = { ASCII_NBRSP, '\0' };
274: static const char *tab[] = {
275: "<NUL>","<SOH>","<STX>","<ETX>","<EOT>","<ENQ>","<ACK>","<BEL>",
276: "<BS>", "\t", "<LF>", "<VT>", "<FF>", "<CR>", "<SO>", "<SI>",
277: "<DLE>","<DC1>","<DC2>","<DC3>","<DC4>","<NAK>","<SYN>","<ETB>",
278: "<CAN>","<EM>", "<SUB>","<ESC>","<FS>", "<GS>", "<RS>", "<US>",
279: " ", "!", "\"", "#", "$", "%", "&", "'",
280: "(", ")", "*", "+", ",", "-", ".", "/",
281: "0", "1", "2", "3", "4", "5", "6", "7",
282: "8", "9", ":", ";", "<", "=", ">", "?",
283: "@", "A", "B", "C", "D", "E", "F", "G",
284: "H", "I", "J", "K", "L", "M", "N", "O",
285: "P", "Q", "R", "S", "T", "U", "V", "W",
286: "X", "Y", "Z", "[", "\\", "]", "^", "_",
287: "`", "a", "b", "c", "d", "e", "f", "g",
288: "h", "i", "j", "k", "l", "m", "n", "o",
289: "p", "q", "r", "s", "t", "u", "v", "w",
290: "x", "y", "z", "{", "|", "}", "~", "<DEL>",
291: "<80>", "<81>", "<82>", "<83>", "<84>", "<85>", "<86>", "<87>",
292: "<88>", "<89>", "<8A>", "<8B>", "<8C>", "<8D>", "<8E>", "<8F>",
293: "<90>", "<91>", "<92>", "<93>", "<94>", "<95>", "<96>", "<97>",
294: "<99>", "<99>", "<9A>", "<9B>", "<9C>", "<9D>", "<9E>", "<9F>",
1.37 schwarze 295: nbrsp, "!", "/\bc", "GBP", "o\bx", "=\bY", "|", "<sec>",
296: "\"", "(C)", "_\ba", "<<", "~", "", "(R)", "-",
297: "<deg>","+-", "2", "3", "'", ",\bu", "<par>",".",
298: ",", "1", "_\bo", ">>", "1/4", "1/2", "3/4", "?",
299: "`\bA", "'\bA", "^\bA", "~\bA", "\"\bA","o\bA", "AE", ",\bC",
300: "`\bE", "'\bE", "^\bE", "\"\bE","`\bI", "'\bI", "^\bI", "\"\bI",
301: "-\bD", "~\bN", "`\bO", "'\bO", "^\bO", "~\bO", "\"\bO","x",
302: "/\bO", "`\bU", "'\bU", "^\bU", "\"\bU","'\bY", "Th", "ss",
303: "`\ba", "'\ba", "^\ba", "~\ba", "\"\ba","o\ba", "ae", ",\bc",
304: "`\be", "'\be", "^\be", "\"\be","`\bi", "'\bi", "^\bi", "\"\bi",
305: "d", "~\bn", "`\bo", "'\bo", "^\bo", "~\bo", "\"\bo","-:-",
306: "/\bo", "`\bu", "'\bu", "^\bu", "\"\bu","'\by", "th", "\"\by",
307: "A", "a", "A", "a", "A", "a", "'\bC", "'\bc",
308: "^\bC", "^\bc", "C", "c", "C", "c", "D", "d",
309: "/\bD", "/\bd", "E", "e", "E", "e", "E", "e",
310: "E", "e", "E", "e", "^\bG", "^\bg", "G", "g",
311: "G", "g", ",\bG", ",\bg", "^\bH", "^\bh", "/\bH", "/\bh",
312: "~\bI", "~\bi", "I", "i", "I", "i", "I", "i",
313: "I", "i", "IJ", "ij", "^\bJ", "^\bj", ",\bK", ",\bk",
314: "q", "'\bL", "'\bl", ",\bL", ",\bl", "L", "l", "L",
315: "l", "/\bL", "/\bl", "'\bN", "'\bn", ",\bN", ",\bn", "N",
1.36 schwarze 316: "n", "'n", "Ng", "ng", "O", "o", "O", "o",
1.37 schwarze 317: "O", "o", "OE", "oe", "'\bR", "'\br", ",\bR", ",\br",
318: "R", "r", "'\bS", "'\bs", "^\bS", "^\bs", ",\bS", ",\bs",
319: "S", "s", ",\bT", ",\bt", "T", "t", "/\bT", "/\bt",
320: "~\bU", "~\bu", "U", "u", "U", "u", "U", "u",
321: "U", "u", "U", "u", "^\bW", "^\bw", "^\bY", "^\by",
322: "\"\bY","'\bZ", "'\bz", "Z", "z", "Z", "z", "s",
1.36 schwarze 323: "b", "B", "B", "b", "6", "6", "O", "C",
324: "c", "D", "D", "D", "d", "d", "3", "@",
1.37 schwarze 325: "E", "F", ",\bf", "G", "G", "hv", "I", "/\bI",
326: "K", "k", "/\bl", "l", "W", "N", "n", "~\bO",
1.36 schwarze 327: "O", "o", "OI", "oi", "P", "p", "YR", "2",
328: "2", "SH", "sh", "t", "T", "t", "T", "U",
1.37 schwarze 329: "u", "Y", "V", "Y", "y", "/\bZ", "/\bz", "ZH",
330: "ZH", "zh", "zh", "/\b2", "5", "5", "ts", "w",
1.36 schwarze 331: "|", "||", "|=", "!", "DZ", "Dz", "dz", "LJ",
332: "Lj", "lj", "NJ", "Nj", "nj", "A", "a", "I",
333: "i", "O", "o", "U", "u", "U", "u", "U",
334: "u", "U", "u", "U", "u", "@", "A", "a",
1.37 schwarze 335: "A", "a", "AE", "ae", "/\bG", "/\bg", "G", "g",
1.36 schwarze 336: "K", "k", "O", "o", "O", "o", "ZH", "zh",
1.37 schwarze 337: "j", "DZ", "Dz", "dz", "'\bG", "'\bg", "HV", "W",
338: "`\bN", "`\bn", "A", "a", "'\bAE","'\bae","O", "o"};
1.36 schwarze 339:
340: if (uc < 0)
341: return("<?>");
342: if ((size_t)uc < sizeof(tab)/sizeof(tab[0]))
343: return(tab[uc]);
344: return(mchars_uc2str(uc));
1.7 kristaps 345: }
346:
1.31 schwarze 347: #if HAVE_WCHAR
1.15 kristaps 348: static size_t
349: locale_width(const struct termp *p, int c)
350: {
351: int rc;
352:
1.26 schwarze 353: if (c == ASCII_NBRSP)
354: c = ' ';
355: rc = wcwidth(c);
356: if (rc < 0)
357: rc = 0;
358: return(rc);
1.15 kristaps 359: }
360:
361: static void
362: locale_advance(struct termp *p, size_t len)
363: {
1.25 schwarze 364: size_t i;
1.15 kristaps 365:
366: for (i = 0; i < len; i++)
367: putwchar(L' ');
368: }
369:
370: static void
371: locale_endline(struct termp *p)
372: {
373:
374: putwchar(L'\n');
375: }
376:
377: static void
378: locale_letter(struct termp *p, int c)
379: {
1.25 schwarze 380:
1.15 kristaps 381: putwchar(c);
382: }
383: #endif
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