Annotation of src/usr.bin/mandoc/term_ascii.c, Revision 1.26
1.26 ! schwarze 1: /* $OpenBSD: term_ascii.c,v 1.25 2014/10/28 17:35:42 schwarze Exp $ */
1.1 schwarze 2: /*
1.6 schwarze 3: * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.12 schwarze 4: * Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org>
1.1 schwarze 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 <sys/types.h>
19:
1.26 ! schwarze 20: #include <assert.h>
1.6 schwarze 21: #include <locale.h>
1.1 schwarze 22: #include <stdint.h>
23: #include <stdio.h>
24: #include <stdlib.h>
25: #include <unistd.h>
1.6 schwarze 26: #include <wchar.h>
1.1 schwarze 27:
1.4 schwarze 28: #include "mandoc.h"
1.11 schwarze 29: #include "mandoc_aux.h"
1.1 schwarze 30: #include "out.h"
31: #include "term.h"
32: #include "main.h"
33:
1.25 schwarze 34: static struct termp *ascii_init(enum termenc,
35: const struct mchars *, char *);
1.3 schwarze 36: static double ascii_hspan(const struct termp *,
37: const struct roffsu *);
1.6 schwarze 38: static size_t ascii_width(const struct termp *, int);
1.3 schwarze 39: static void ascii_advance(struct termp *, size_t);
40: static void ascii_begin(struct termp *);
41: static void ascii_end(struct termp *);
1.1 schwarze 42: static void ascii_endline(struct termp *);
1.6 schwarze 43: static void ascii_letter(struct termp *, int);
1.13 schwarze 44: static void ascii_setwidth(struct termp *, int, size_t);
1.1 schwarze 45:
1.6 schwarze 46: static void locale_advance(struct termp *, size_t);
47: static void locale_endline(struct termp *);
48: static void locale_letter(struct termp *, int);
49: static size_t locale_width(const struct termp *, int);
1.1 schwarze 50:
1.14 schwarze 51:
1.6 schwarze 52: static struct termp *
1.25 schwarze 53: ascii_init(enum termenc enc, const struct mchars *mchars, char *outopts)
1.1 schwarze 54: {
1.21 schwarze 55: const char *toks[5];
1.1 schwarze 56: char *v;
1.6 schwarze 57: struct termp *p;
1.1 schwarze 58:
1.6 schwarze 59: p = mandoc_calloc(1, sizeof(struct termp));
1.1 schwarze 60:
1.25 schwarze 61: p->symtab = mchars;
1.2 schwarze 62: p->tabwidth = 5;
1.12 schwarze 63: p->defrmargin = p->lastrmargin = 78;
1.2 schwarze 64:
1.1 schwarze 65: p->begin = ascii_begin;
66: p->end = ascii_end;
1.6 schwarze 67: p->hspan = ascii_hspan;
68: p->type = TERMTYPE_CHAR;
69:
70: p->enc = TERMENC_ASCII;
71: p->advance = ascii_advance;
1.1 schwarze 72: p->endline = ascii_endline;
1.3 schwarze 73: p->letter = ascii_letter;
1.12 schwarze 74: p->setwidth = ascii_setwidth;
1.2 schwarze 75: p->width = ascii_width;
1.1 schwarze 76:
1.6 schwarze 77: if (TERMENC_ASCII != enc) {
78: v = TERMENC_LOCALE == enc ?
1.14 schwarze 79: setlocale(LC_ALL, "") :
80: setlocale(LC_CTYPE, "en_US.UTF-8");
1.6 schwarze 81: if (NULL != v && MB_CUR_MAX > 1) {
82: p->enc = enc;
83: p->advance = locale_advance;
84: p->endline = locale_endline;
85: p->letter = locale_letter;
86: p->width = locale_width;
87: }
88: }
89:
1.7 schwarze 90: toks[0] = "indent";
91: toks[1] = "width";
1.8 schwarze 92: toks[2] = "mdoc";
1.21 schwarze 93: toks[3] = "synopsis";
94: toks[4] = NULL;
1.1 schwarze 95:
96: while (outopts && *outopts)
97: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.14 schwarze 98: case 0:
1.7 schwarze 99: p->defindent = (size_t)atoi(v);
100: break;
1.14 schwarze 101: case 1:
1.1 schwarze 102: p->defrmargin = (size_t)atoi(v);
1.8 schwarze 103: break;
1.14 schwarze 104: case 2:
1.9 schwarze 105: /*
106: * Temporary, undocumented mode
107: * to imitate mdoc(7) output style.
108: */
1.8 schwarze 109: p->mdocstyle = 1;
110: p->defindent = 5;
1.21 schwarze 111: break;
112: case 3:
113: p->synopsisonly = 1;
1.1 schwarze 114: break;
115: default:
116: break;
117: }
118:
119: /* Enforce a lower boundary. */
120: if (p->defrmargin < 58)
121: p->defrmargin = 58;
122:
123: return(p);
1.2 schwarze 124: }
125:
1.6 schwarze 126: void *
1.25 schwarze 127: ascii_alloc(const struct mchars *mchars, char *outopts)
1.6 schwarze 128: {
129:
1.25 schwarze 130: return(ascii_init(TERMENC_ASCII, mchars, outopts));
1.6 schwarze 131: }
132:
133: void *
1.25 schwarze 134: utf8_alloc(const struct mchars *mchars, char *outopts)
1.6 schwarze 135: {
136:
1.25 schwarze 137: return(ascii_init(TERMENC_UTF8, mchars, outopts));
1.6 schwarze 138: }
139:
140: void *
1.25 schwarze 141: locale_alloc(const struct mchars *mchars, char *outopts)
1.6 schwarze 142: {
143:
1.25 schwarze 144: return(ascii_init(TERMENC_LOCALE, mchars, outopts));
1.12 schwarze 145: }
146:
147: static void
1.13 schwarze 148: ascii_setwidth(struct termp *p, int iop, size_t width)
1.12 schwarze 149: {
150:
1.13 schwarze 151: p->rmargin = p->defrmargin;
152: if (0 < iop)
153: p->defrmargin += width;
154: else if (0 > iop)
155: p->defrmargin -= width;
156: else
157: p->defrmargin = width ? width : p->lastrmargin;
158: p->lastrmargin = p->rmargin;
159: p->rmargin = p->maxrmargin = p->defrmargin;
1.6 schwarze 160: }
1.2 schwarze 161:
162: static size_t
1.6 schwarze 163: ascii_width(const struct termp *p, int c)
1.2 schwarze 164: {
165:
166: return(1);
1.1 schwarze 167: }
168:
169: void
170: ascii_free(void *arg)
171: {
172:
173: term_free((struct termp *)arg);
174: }
175:
176: static void
1.6 schwarze 177: ascii_letter(struct termp *p, int c)
1.1 schwarze 178: {
1.14 schwarze 179:
1.1 schwarze 180: putchar(c);
181: }
182:
183: static void
184: ascii_begin(struct termp *p)
185: {
186:
187: (*p->headf)(p, p->argf);
188: }
189:
190: static void
191: ascii_end(struct termp *p)
192: {
193:
194: (*p->footf)(p, p->argf);
195: }
196:
197: static void
198: ascii_endline(struct termp *p)
199: {
200:
201: putchar('\n');
202: }
203:
204: static void
205: ascii_advance(struct termp *p, size_t len)
206: {
1.14 schwarze 207: size_t i;
1.1 schwarze 208:
209: for (i = 0; i < len; i++)
210: putchar(' ');
211: }
1.3 schwarze 212:
213: static double
214: ascii_hspan(const struct termp *p, const struct roffsu *su)
215: {
216: double r;
217:
218: /*
1.17 schwarze 219: * Approximate based on character width.
220: * None of these will be actually correct given that an inch on
221: * the screen depends on character size, terminal, etc., etc.
1.3 schwarze 222: */
223: switch (su->unit) {
1.17 schwarze 224: case SCALE_BU:
225: r = su->scale * 10.0 / 240.0;
226: break;
1.14 schwarze 227: case SCALE_CM:
1.17 schwarze 228: r = su->scale * 10.0 / 2.54;
229: break;
230: case SCALE_FS:
231: r = su->scale * 2730.666;
1.3 schwarze 232: break;
1.14 schwarze 233: case SCALE_IN:
1.16 schwarze 234: r = su->scale * 10.0;
1.3 schwarze 235: break;
1.17 schwarze 236: case SCALE_MM:
237: r = su->scale / 100.0;
238: break;
1.14 schwarze 239: case SCALE_PC:
1.17 schwarze 240: r = su->scale * 10.0 / 6.0;
1.3 schwarze 241: break;
1.14 schwarze 242: case SCALE_PT:
1.17 schwarze 243: r = su->scale * 10.0 / 72.0;
1.3 schwarze 244: break;
1.14 schwarze 245: case SCALE_VS:
1.16 schwarze 246: r = su->scale * 2.0 - 1.0;
1.3 schwarze 247: break;
1.17 schwarze 248: case SCALE_EN:
1.18 schwarze 249: /* FALLTHROUGH */
1.17 schwarze 250: case SCALE_EM:
1.3 schwarze 251: r = su->scale;
1.17 schwarze 252: break;
1.20 schwarze 253: default:
1.17 schwarze 254: abort();
1.18 schwarze 255: /* NOTREACHED */
1.3 schwarze 256: }
257:
258: return(r);
1.22 schwarze 259: }
260:
261: const char *
262: ascii_uc2str(int uc)
263: {
264: static const char nbrsp[2] = { ASCII_NBRSP, '\0' };
265: static const char *tab[] = {
266: "<NUL>","<SOH>","<STX>","<ETX>","<EOT>","<ENQ>","<ACK>","<BEL>",
267: "<BS>", "\t", "<LF>", "<VT>", "<FF>", "<CR>", "<SO>", "<SI>",
268: "<DLE>","<DC1>","<DC2>","<DC3>","<DC4>","<NAK>","<SYN>","<ETB>",
269: "<CAN>","<EM>", "<SUB>","<ESC>","<FS>", "<GS>", "<RS>", "<US>",
270: " ", "!", "\"", "#", "$", "%", "&", "'",
271: "(", ")", "*", "+", ",", "-", ".", "/",
272: "0", "1", "2", "3", "4", "5", "6", "7",
273: "8", "9", ":", ";", "<", "=", ">", "?",
274: "@", "A", "B", "C", "D", "E", "F", "G",
275: "H", "I", "J", "K", "L", "M", "N", "O",
276: "P", "Q", "R", "S", "T", "U", "V", "W",
277: "X", "Y", "Z", "[", "\\", "]", "^", "_",
278: "`", "a", "b", "c", "d", "e", "f", "g",
279: "h", "i", "j", "k", "l", "m", "n", "o",
280: "p", "q", "r", "s", "t", "u", "v", "w",
281: "x", "y", "z", "{", "|", "}", "~", "<DEL>",
282: "<80>", "<81>", "<82>", "<83>", "<84>", "<85>", "<86>", "<87>",
283: "<88>", "<89>", "<8A>", "<8B>", "<8C>", "<8D>", "<8E>", "<8F>",
284: "<90>", "<91>", "<92>", "<93>", "<94>", "<95>", "<96>", "<97>",
285: "<99>", "<99>", "<9A>", "<9B>", "<9C>", "<9D>", "<9E>", "<9F>",
1.24 schwarze 286: nbrsp, "!", "/\bc", "GBP", "o\bx", "=\bY", "|", "<sec>",
287: "\"", "(C)", "_\ba", "<<", "~", "", "(R)", "-",
288: "<deg>","+-", "2", "3", "'", ",\bu", "<par>",".",
289: ",", "1", "_\bo", ">>", "1/4", "1/2", "3/4", "?",
290: "`\bA", "'\bA", "^\bA", "~\bA", "\"\bA","o\bA", "AE", ",\bC",
291: "`\bE", "'\bE", "^\bE", "\"\bE","`\bI", "'\bI", "^\bI", "\"\bI",
292: "-\bD", "~\bN", "`\bO", "'\bO", "^\bO", "~\bO", "\"\bO","x",
293: "/\bO", "`\bU", "'\bU", "^\bU", "\"\bU","'\bY", "Th", "ss",
294: "`\ba", "'\ba", "^\ba", "~\ba", "\"\ba","o\ba", "ae", ",\bc",
295: "`\be", "'\be", "^\be", "\"\be","`\bi", "'\bi", "^\bi", "\"\bi",
296: "d", "~\bn", "`\bo", "'\bo", "^\bo", "~\bo", "\"\bo","-:-",
297: "/\bo", "`\bu", "'\bu", "^\bu", "\"\bu","'\by", "th", "\"\by",
298: "A", "a", "A", "a", "A", "a", "'\bC", "'\bc",
299: "^\bC", "^\bc", "C", "c", "C", "c", "D", "d",
300: "/\bD", "/\bd", "E", "e", "E", "e", "E", "e",
301: "E", "e", "E", "e", "^\bG", "^\bg", "G", "g",
302: "G", "g", ",\bG", ",\bg", "^\bH", "^\bh", "/\bH", "/\bh",
303: "~\bI", "~\bi", "I", "i", "I", "i", "I", "i",
304: "I", "i", "IJ", "ij", "^\bJ", "^\bj", ",\bK", ",\bk",
305: "q", "'\bL", "'\bl", ",\bL", ",\bl", "L", "l", "L",
306: "l", "/\bL", "/\bl", "'\bN", "'\bn", ",\bN", ",\bn", "N",
1.22 schwarze 307: "n", "'n", "Ng", "ng", "O", "o", "O", "o",
1.24 schwarze 308: "O", "o", "OE", "oe", "'\bR", "'\br", ",\bR", ",\br",
309: "R", "r", "'\bS", "'\bs", "^\bS", "^\bs", ",\bS", ",\bs",
310: "S", "s", ",\bT", ",\bt", "T", "t", "/\bT", "/\bt",
311: "~\bU", "~\bu", "U", "u", "U", "u", "U", "u",
312: "U", "u", "U", "u", "^\bW", "^\bw", "^\bY", "^\by",
313: "\"\bY","'\bZ", "'\bz", "Z", "z", "Z", "z", "s",
1.22 schwarze 314: "b", "B", "B", "b", "6", "6", "O", "C",
315: "c", "D", "D", "D", "d", "d", "3", "@",
1.24 schwarze 316: "E", "F", ",\bf", "G", "G", "hv", "I", "/\bI",
317: "K", "k", "/\bl", "l", "W", "N", "n", "~\bO",
1.22 schwarze 318: "O", "o", "OI", "oi", "P", "p", "YR", "2",
319: "2", "SH", "sh", "t", "T", "t", "T", "U",
1.24 schwarze 320: "u", "Y", "V", "Y", "y", "/\bZ", "/\bz", "ZH",
321: "ZH", "zh", "zh", "/\b2", "5", "5", "ts", "w",
1.22 schwarze 322: "|", "||", "|=", "!", "DZ", "Dz", "dz", "LJ",
323: "Lj", "lj", "NJ", "Nj", "nj", "A", "a", "I",
324: "i", "O", "o", "U", "u", "U", "u", "U",
325: "u", "U", "u", "U", "u", "@", "A", "a",
1.24 schwarze 326: "A", "a", "AE", "ae", "/\bG", "/\bg", "G", "g",
1.22 schwarze 327: "K", "k", "O", "o", "O", "o", "ZH", "zh",
1.24 schwarze 328: "j", "DZ", "Dz", "dz", "'\bG", "'\bg", "HV", "W",
329: "`\bN", "`\bn", "A", "a", "'\bAE","'\bae","O", "o"};
1.22 schwarze 330:
1.26 ! schwarze 331: assert(uc >= 0);
1.23 schwarze 332: if ((size_t)uc < sizeof(tab)/sizeof(tab[0]))
333: return(tab[uc]);
334: return(mchars_uc2str(uc));
1.3 schwarze 335: }
336:
1.6 schwarze 337: static size_t
338: locale_width(const struct termp *p, int c)
339: {
340: int rc;
341:
1.15 schwarze 342: if (c == ASCII_NBRSP)
343: c = ' ';
344: rc = wcwidth(c);
345: if (rc < 0)
346: rc = 0;
347: return(rc);
1.6 schwarze 348: }
349:
350: static void
351: locale_advance(struct termp *p, size_t len)
352: {
1.14 schwarze 353: size_t i;
1.6 schwarze 354:
355: for (i = 0; i < len; i++)
356: putwchar(L' ');
357: }
358:
359: static void
360: locale_endline(struct termp *p)
361: {
362:
363: putwchar(L'\n');
364: }
365:
366: static void
367: locale_letter(struct termp *p, int c)
368: {
1.14 schwarze 369:
1.6 schwarze 370: putwchar(c);
371: }
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