Annotation of mandoc/term_ascii.c, Revision 1.42
1.42 ! schwarze 1: /* $Id: term_ascii.c,v 1.41 2014/12/19 17:12:04 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:
1.39 schwarze 22: #include <assert.h>
1.31 schwarze 23: #if HAVE_WCHAR
1.28 schwarze 24: #include <locale.h>
1.15 kristaps 25: #endif
1.1 kristaps 26: #include <stdint.h>
27: #include <stdio.h>
28: #include <stdlib.h>
1.2 kristaps 29: #include <unistd.h>
1.31 schwarze 30: #if HAVE_WCHAR
1.28 schwarze 31: #include <wchar.h>
1.15 kristaps 32: #endif
1.1 kristaps 33:
1.11 kristaps 34: #include "mandoc.h"
1.22 schwarze 35: #include "mandoc_aux.h"
1.1 kristaps 36: #include "out.h"
37: #include "term.h"
38: #include "main.h"
39:
1.38 schwarze 40: static struct termp *ascii_init(enum termenc,
41: const struct mchars *, char *);
1.8 kristaps 42: static double ascii_hspan(const struct termp *,
1.7 kristaps 43: const struct roffsu *);
1.13 kristaps 44: static size_t ascii_width(const struct termp *, int);
1.7 kristaps 45: static void ascii_advance(struct termp *, size_t);
46: static void ascii_begin(struct termp *);
47: static void ascii_end(struct termp *);
1.1 kristaps 48: static void ascii_endline(struct termp *);
1.13 kristaps 49: static void ascii_letter(struct termp *, int);
1.24 schwarze 50: static void ascii_setwidth(struct termp *, int, size_t);
1.1 kristaps 51:
1.31 schwarze 52: #if HAVE_WCHAR
1.15 kristaps 53: static void locale_advance(struct termp *, size_t);
54: static void locale_endline(struct termp *);
55: static void locale_letter(struct termp *, int);
56: static size_t locale_width(const struct termp *, int);
57: #endif
58:
1.25 schwarze 59:
1.14 kristaps 60: static struct termp *
1.38 schwarze 61: ascii_init(enum termenc enc, const struct mchars *mchars, char *outopts)
1.1 kristaps 62: {
1.33 schwarze 63: const char *toks[5];
1.1 kristaps 64: char *v;
1.14 kristaps 65: struct termp *p;
1.1 kristaps 66:
1.14 kristaps 67: p = mandoc_calloc(1, sizeof(struct termp));
1.1 kristaps 68:
1.38 schwarze 69: p->symtab = mchars;
1.5 kristaps 70: p->tabwidth = 5;
1.23 schwarze 71: p->defrmargin = p->lastrmargin = 78;
1.41 schwarze 72: p->fontq = mandoc_reallocarray(NULL,
73: (p->fontsz = 8), sizeof(enum termfont));
74: p->fontq[0] = p->fontl = TERMFONT_NONE;
1.5 kristaps 75:
1.1 kristaps 76: p->begin = ascii_begin;
77: p->end = ascii_end;
1.15 kristaps 78: p->hspan = ascii_hspan;
79: p->type = TERMTYPE_CHAR;
80:
81: p->enc = TERMENC_ASCII;
82: p->advance = ascii_advance;
1.1 kristaps 83: p->endline = ascii_endline;
1.7 kristaps 84: p->letter = ascii_letter;
1.23 schwarze 85: p->setwidth = ascii_setwidth;
1.5 kristaps 86: p->width = ascii_width;
1.1 kristaps 87:
1.31 schwarze 88: #if HAVE_WCHAR
1.17 kristaps 89: if (TERMENC_ASCII != enc) {
90: v = TERMENC_LOCALE == enc ?
1.25 schwarze 91: setlocale(LC_ALL, "") :
92: setlocale(LC_CTYPE, "en_US.UTF-8");
1.17 kristaps 93: if (NULL != v && MB_CUR_MAX > 1) {
1.15 kristaps 94: p->enc = enc;
95: p->advance = locale_advance;
96: p->endline = locale_endline;
97: p->letter = locale_letter;
98: p->width = locale_width;
99: }
1.17 kristaps 100: }
1.15 kristaps 101: #endif
102:
1.19 schwarze 103: toks[0] = "indent";
104: toks[1] = "width";
1.20 schwarze 105: toks[2] = "mdoc";
1.33 schwarze 106: toks[3] = "synopsis";
107: toks[4] = NULL;
1.1 kristaps 108:
109: while (outopts && *outopts)
110: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.25 schwarze 111: case 0:
1.19 schwarze 112: p->defindent = (size_t)atoi(v);
113: break;
1.25 schwarze 114: case 1:
1.1 kristaps 115: p->defrmargin = (size_t)atoi(v);
1.20 schwarze 116: break;
1.25 schwarze 117: case 2:
1.20 schwarze 118: /*
119: * Temporary, undocumented mode
120: * to imitate mdoc(7) output style.
121: */
122: p->mdocstyle = 1;
123: p->defindent = 5;
1.33 schwarze 124: break;
125: case 3:
126: p->synopsisonly = 1;
1.1 kristaps 127: break;
128: default:
129: break;
130: }
131:
132: /* Enforce a lower boundary. */
133: if (p->defrmargin < 58)
134: p->defrmargin = 58;
135:
136: return(p);
1.5 kristaps 137: }
138:
1.14 kristaps 139: void *
1.38 schwarze 140: ascii_alloc(const struct mchars *mchars, char *outopts)
1.14 kristaps 141: {
142:
1.38 schwarze 143: return(ascii_init(TERMENC_ASCII, mchars, outopts));
1.14 kristaps 144: }
1.17 kristaps 145:
146: void *
1.38 schwarze 147: utf8_alloc(const struct mchars *mchars, char *outopts)
1.17 kristaps 148: {
149:
1.38 schwarze 150: return(ascii_init(TERMENC_UTF8, mchars, outopts));
1.17 kristaps 151: }
152:
1.14 kristaps 153: void *
1.38 schwarze 154: locale_alloc(const struct mchars *mchars, char *outopts)
1.14 kristaps 155: {
156:
1.38 schwarze 157: return(ascii_init(TERMENC_LOCALE, mchars, outopts));
1.23 schwarze 158: }
159:
160: static void
1.24 schwarze 161: ascii_setwidth(struct termp *p, int iop, size_t width)
1.23 schwarze 162: {
163:
1.24 schwarze 164: p->rmargin = p->defrmargin;
1.40 schwarze 165: if (iop > 0)
1.24 schwarze 166: p->defrmargin += width;
1.40 schwarze 167: else if (iop == 0)
168: p->defrmargin = width ? width : p->lastrmargin;
169: else if (p->defrmargin > width)
1.24 schwarze 170: p->defrmargin -= width;
171: else
1.40 schwarze 172: p->defrmargin = 0;
1.24 schwarze 173: p->lastrmargin = p->rmargin;
174: p->rmargin = p->maxrmargin = p->defrmargin;
1.42 ! schwarze 175: }
! 176:
! 177: void
! 178: ascii_sepline(void *arg)
! 179: {
! 180: struct termp *p;
! 181: size_t i;
! 182:
! 183: p = (struct termp *)arg;
! 184: putchar('\n');
! 185: for (i = 0; i < p->defrmargin; i++)
! 186: putchar('-');
! 187: putchar('\n');
! 188: putchar('\n');
1.34 schwarze 189: }
190:
1.5 kristaps 191: static size_t
1.13 kristaps 192: ascii_width(const struct termp *p, int c)
1.5 kristaps 193: {
194:
195: return(1);
1.1 kristaps 196: }
197:
198: void
199: ascii_free(void *arg)
200: {
201:
202: term_free((struct termp *)arg);
203: }
204:
205: static void
1.13 kristaps 206: ascii_letter(struct termp *p, int c)
1.1 kristaps 207: {
1.25 schwarze 208:
1.1 kristaps 209: putchar(c);
210: }
211:
212: static void
213: ascii_begin(struct termp *p)
214: {
215:
216: (*p->headf)(p, p->argf);
217: }
218:
219: static void
220: ascii_end(struct termp *p)
221: {
222:
223: (*p->footf)(p, p->argf);
224: }
225:
226: static void
227: ascii_endline(struct termp *p)
228: {
229:
230: putchar('\n');
231: }
232:
233: static void
234: ascii_advance(struct termp *p, size_t len)
235: {
1.25 schwarze 236: size_t i;
1.1 kristaps 237:
238: for (i = 0; i < len; i++)
239: putchar(' ');
240: }
1.7 kristaps 241:
1.8 kristaps 242: static double
1.7 kristaps 243: ascii_hspan(const struct termp *p, const struct roffsu *su)
244: {
245: double r;
246:
247: /*
1.29 kristaps 248: * Approximate based on character width.
249: * None of these will be actually correct given that an inch on
250: * the screen depends on character size, terminal, etc., etc.
1.7 kristaps 251: */
252: switch (su->unit) {
1.29 kristaps 253: case SCALE_BU:
254: r = su->scale * 10.0 / 240.0;
255: break;
1.25 schwarze 256: case SCALE_CM:
1.29 kristaps 257: r = su->scale * 10.0 / 2.54;
258: break;
259: case SCALE_FS:
260: r = su->scale * 2730.666;
1.7 kristaps 261: break;
1.25 schwarze 262: case SCALE_IN:
1.27 schwarze 263: r = su->scale * 10.0;
1.7 kristaps 264: break;
1.29 kristaps 265: case SCALE_MM:
266: r = su->scale / 100.0;
267: break;
1.25 schwarze 268: case SCALE_PC:
1.29 kristaps 269: r = su->scale * 10.0 / 6.0;
1.7 kristaps 270: break;
1.25 schwarze 271: case SCALE_PT:
1.29 kristaps 272: r = su->scale * 10.0 / 72.0;
1.7 kristaps 273: break;
1.25 schwarze 274: case SCALE_VS:
1.27 schwarze 275: r = su->scale * 2.0 - 1.0;
1.7 kristaps 276: break;
1.29 kristaps 277: case SCALE_EN:
1.30 schwarze 278: /* FALLTHROUGH */
1.29 kristaps 279: case SCALE_EM:
1.7 kristaps 280: r = su->scale;
1.29 kristaps 281: break;
1.32 schwarze 282: default:
1.29 kristaps 283: abort();
1.30 schwarze 284: /* NOTREACHED */
1.7 kristaps 285: }
286:
1.8 kristaps 287: return(r);
1.36 schwarze 288: }
289:
290: const char *
291: ascii_uc2str(int uc)
292: {
293: static const char nbrsp[2] = { ASCII_NBRSP, '\0' };
294: static const char *tab[] = {
295: "<NUL>","<SOH>","<STX>","<ETX>","<EOT>","<ENQ>","<ACK>","<BEL>",
296: "<BS>", "\t", "<LF>", "<VT>", "<FF>", "<CR>", "<SO>", "<SI>",
297: "<DLE>","<DC1>","<DC2>","<DC3>","<DC4>","<NAK>","<SYN>","<ETB>",
298: "<CAN>","<EM>", "<SUB>","<ESC>","<FS>", "<GS>", "<RS>", "<US>",
299: " ", "!", "\"", "#", "$", "%", "&", "'",
300: "(", ")", "*", "+", ",", "-", ".", "/",
301: "0", "1", "2", "3", "4", "5", "6", "7",
302: "8", "9", ":", ";", "<", "=", ">", "?",
303: "@", "A", "B", "C", "D", "E", "F", "G",
304: "H", "I", "J", "K", "L", "M", "N", "O",
305: "P", "Q", "R", "S", "T", "U", "V", "W",
306: "X", "Y", "Z", "[", "\\", "]", "^", "_",
307: "`", "a", "b", "c", "d", "e", "f", "g",
308: "h", "i", "j", "k", "l", "m", "n", "o",
309: "p", "q", "r", "s", "t", "u", "v", "w",
310: "x", "y", "z", "{", "|", "}", "~", "<DEL>",
311: "<80>", "<81>", "<82>", "<83>", "<84>", "<85>", "<86>", "<87>",
312: "<88>", "<89>", "<8A>", "<8B>", "<8C>", "<8D>", "<8E>", "<8F>",
313: "<90>", "<91>", "<92>", "<93>", "<94>", "<95>", "<96>", "<97>",
314: "<99>", "<99>", "<9A>", "<9B>", "<9C>", "<9D>", "<9E>", "<9F>",
1.37 schwarze 315: nbrsp, "!", "/\bc", "GBP", "o\bx", "=\bY", "|", "<sec>",
316: "\"", "(C)", "_\ba", "<<", "~", "", "(R)", "-",
317: "<deg>","+-", "2", "3", "'", ",\bu", "<par>",".",
318: ",", "1", "_\bo", ">>", "1/4", "1/2", "3/4", "?",
319: "`\bA", "'\bA", "^\bA", "~\bA", "\"\bA","o\bA", "AE", ",\bC",
320: "`\bE", "'\bE", "^\bE", "\"\bE","`\bI", "'\bI", "^\bI", "\"\bI",
321: "-\bD", "~\bN", "`\bO", "'\bO", "^\bO", "~\bO", "\"\bO","x",
322: "/\bO", "`\bU", "'\bU", "^\bU", "\"\bU","'\bY", "Th", "ss",
323: "`\ba", "'\ba", "^\ba", "~\ba", "\"\ba","o\ba", "ae", ",\bc",
324: "`\be", "'\be", "^\be", "\"\be","`\bi", "'\bi", "^\bi", "\"\bi",
325: "d", "~\bn", "`\bo", "'\bo", "^\bo", "~\bo", "\"\bo","-:-",
326: "/\bo", "`\bu", "'\bu", "^\bu", "\"\bu","'\by", "th", "\"\by",
327: "A", "a", "A", "a", "A", "a", "'\bC", "'\bc",
328: "^\bC", "^\bc", "C", "c", "C", "c", "D", "d",
329: "/\bD", "/\bd", "E", "e", "E", "e", "E", "e",
330: "E", "e", "E", "e", "^\bG", "^\bg", "G", "g",
331: "G", "g", ",\bG", ",\bg", "^\bH", "^\bh", "/\bH", "/\bh",
332: "~\bI", "~\bi", "I", "i", "I", "i", "I", "i",
333: "I", "i", "IJ", "ij", "^\bJ", "^\bj", ",\bK", ",\bk",
334: "q", "'\bL", "'\bl", ",\bL", ",\bl", "L", "l", "L",
335: "l", "/\bL", "/\bl", "'\bN", "'\bn", ",\bN", ",\bn", "N",
1.36 schwarze 336: "n", "'n", "Ng", "ng", "O", "o", "O", "o",
1.37 schwarze 337: "O", "o", "OE", "oe", "'\bR", "'\br", ",\bR", ",\br",
338: "R", "r", "'\bS", "'\bs", "^\bS", "^\bs", ",\bS", ",\bs",
339: "S", "s", ",\bT", ",\bt", "T", "t", "/\bT", "/\bt",
340: "~\bU", "~\bu", "U", "u", "U", "u", "U", "u",
341: "U", "u", "U", "u", "^\bW", "^\bw", "^\bY", "^\by",
342: "\"\bY","'\bZ", "'\bz", "Z", "z", "Z", "z", "s",
1.36 schwarze 343: "b", "B", "B", "b", "6", "6", "O", "C",
344: "c", "D", "D", "D", "d", "d", "3", "@",
1.37 schwarze 345: "E", "F", ",\bf", "G", "G", "hv", "I", "/\bI",
346: "K", "k", "/\bl", "l", "W", "N", "n", "~\bO",
1.36 schwarze 347: "O", "o", "OI", "oi", "P", "p", "YR", "2",
348: "2", "SH", "sh", "t", "T", "t", "T", "U",
1.37 schwarze 349: "u", "Y", "V", "Y", "y", "/\bZ", "/\bz", "ZH",
350: "ZH", "zh", "zh", "/\b2", "5", "5", "ts", "w",
1.36 schwarze 351: "|", "||", "|=", "!", "DZ", "Dz", "dz", "LJ",
352: "Lj", "lj", "NJ", "Nj", "nj", "A", "a", "I",
353: "i", "O", "o", "U", "u", "U", "u", "U",
354: "u", "U", "u", "U", "u", "@", "A", "a",
1.37 schwarze 355: "A", "a", "AE", "ae", "/\bG", "/\bg", "G", "g",
1.36 schwarze 356: "K", "k", "O", "o", "O", "o", "ZH", "zh",
1.37 schwarze 357: "j", "DZ", "Dz", "dz", "'\bG", "'\bg", "HV", "W",
358: "`\bN", "`\bn", "A", "a", "'\bAE","'\bae","O", "o"};
1.36 schwarze 359:
1.39 schwarze 360: assert(uc >= 0);
1.36 schwarze 361: if ((size_t)uc < sizeof(tab)/sizeof(tab[0]))
362: return(tab[uc]);
363: return(mchars_uc2str(uc));
1.7 kristaps 364: }
365:
1.31 schwarze 366: #if HAVE_WCHAR
1.15 kristaps 367: static size_t
368: locale_width(const struct termp *p, int c)
369: {
370: int rc;
371:
1.26 schwarze 372: if (c == ASCII_NBRSP)
373: c = ' ';
374: rc = wcwidth(c);
375: if (rc < 0)
376: rc = 0;
377: return(rc);
1.15 kristaps 378: }
379:
380: static void
381: locale_advance(struct termp *p, size_t len)
382: {
1.25 schwarze 383: size_t i;
1.15 kristaps 384:
385: for (i = 0; i < len; i++)
386: putwchar(L' ');
387: }
388:
389: static void
390: locale_endline(struct termp *p)
391: {
392:
393: putwchar(L'\n');
394: }
395:
396: static void
397: locale_letter(struct termp *p, int c)
398: {
1.25 schwarze 399:
1.15 kristaps 400: putwchar(c);
401: }
402: #endif
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