Annotation of src/usr.bin/mandoc/term_ascii.c, Revision 1.30
1.30 ! tedu 1: /* $OpenBSD: term_ascii.c,v 1.29 2014/12/31 16:50:54 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;
1.30 ! tedu 58: const char *errstr;
! 59: int num;
1.1 schwarze 60:
1.6 schwarze 61: p = mandoc_calloc(1, sizeof(struct termp));
1.1 schwarze 62:
1.25 schwarze 63: p->symtab = mchars;
1.2 schwarze 64: p->tabwidth = 5;
1.12 schwarze 65: p->defrmargin = p->lastrmargin = 78;
1.28 schwarze 66: p->fontq = mandoc_reallocarray(NULL,
67: (p->fontsz = 8), sizeof(enum termfont));
68: p->fontq[0] = p->fontl = TERMFONT_NONE;
1.2 schwarze 69:
1.1 schwarze 70: p->begin = ascii_begin;
71: p->end = ascii_end;
1.6 schwarze 72: p->hspan = ascii_hspan;
73: p->type = TERMTYPE_CHAR;
74:
75: p->enc = TERMENC_ASCII;
76: p->advance = ascii_advance;
1.1 schwarze 77: p->endline = ascii_endline;
1.3 schwarze 78: p->letter = ascii_letter;
1.12 schwarze 79: p->setwidth = ascii_setwidth;
1.2 schwarze 80: p->width = ascii_width;
1.1 schwarze 81:
1.6 schwarze 82: if (TERMENC_ASCII != enc) {
83: v = TERMENC_LOCALE == enc ?
1.14 schwarze 84: setlocale(LC_ALL, "") :
85: setlocale(LC_CTYPE, "en_US.UTF-8");
1.6 schwarze 86: if (NULL != v && MB_CUR_MAX > 1) {
87: p->enc = enc;
88: p->advance = locale_advance;
89: p->endline = locale_endline;
90: p->letter = locale_letter;
91: p->width = locale_width;
92: }
93: }
94:
1.7 schwarze 95: toks[0] = "indent";
96: toks[1] = "width";
1.8 schwarze 97: toks[2] = "mdoc";
1.21 schwarze 98: toks[3] = "synopsis";
99: toks[4] = NULL;
1.1 schwarze 100:
101: while (outopts && *outopts)
102: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.14 schwarze 103: case 0:
1.30 ! tedu 104: num = strtonum(v, 0, 1000, &errstr);
! 105: if (!errstr)
! 106: p->defindent = num;
1.7 schwarze 107: break;
1.14 schwarze 108: case 1:
1.30 ! tedu 109: num = strtonum(v, 0, 1000, &errstr);
! 110: if (!errstr)
! 111: p->defrmargin = num;
1.8 schwarze 112: break;
1.14 schwarze 113: case 2:
1.9 schwarze 114: /*
115: * Temporary, undocumented mode
116: * to imitate mdoc(7) output style.
117: */
1.8 schwarze 118: p->mdocstyle = 1;
119: p->defindent = 5;
1.21 schwarze 120: break;
121: case 3:
122: p->synopsisonly = 1;
1.1 schwarze 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);
1.2 schwarze 133: }
134:
1.6 schwarze 135: void *
1.25 schwarze 136: ascii_alloc(const struct mchars *mchars, char *outopts)
1.6 schwarze 137: {
138:
1.25 schwarze 139: return(ascii_init(TERMENC_ASCII, mchars, outopts));
1.6 schwarze 140: }
141:
142: void *
1.25 schwarze 143: utf8_alloc(const struct mchars *mchars, char *outopts)
1.6 schwarze 144: {
145:
1.25 schwarze 146: return(ascii_init(TERMENC_UTF8, mchars, outopts));
1.6 schwarze 147: }
148:
149: void *
1.25 schwarze 150: locale_alloc(const struct mchars *mchars, char *outopts)
1.6 schwarze 151: {
152:
1.25 schwarze 153: return(ascii_init(TERMENC_LOCALE, mchars, outopts));
1.12 schwarze 154: }
155:
156: static void
1.13 schwarze 157: ascii_setwidth(struct termp *p, int iop, size_t width)
1.12 schwarze 158: {
159:
1.13 schwarze 160: p->rmargin = p->defrmargin;
1.27 schwarze 161: if (iop > 0)
1.13 schwarze 162: p->defrmargin += width;
1.27 schwarze 163: else if (iop == 0)
164: p->defrmargin = width ? width : p->lastrmargin;
165: else if (p->defrmargin > width)
1.13 schwarze 166: p->defrmargin -= width;
167: else
1.27 schwarze 168: p->defrmargin = 0;
1.13 schwarze 169: p->lastrmargin = p->rmargin;
170: p->rmargin = p->maxrmargin = p->defrmargin;
1.29 schwarze 171: }
172:
173: void
174: ascii_sepline(void *arg)
175: {
176: struct termp *p;
177: size_t i;
178:
179: p = (struct termp *)arg;
180: putchar('\n');
181: for (i = 0; i < p->defrmargin; i++)
182: putchar('-');
183: putchar('\n');
184: putchar('\n');
1.6 schwarze 185: }
1.2 schwarze 186:
187: static size_t
1.6 schwarze 188: ascii_width(const struct termp *p, int c)
1.2 schwarze 189: {
190:
191: return(1);
1.1 schwarze 192: }
193:
194: void
195: ascii_free(void *arg)
196: {
197:
198: term_free((struct termp *)arg);
199: }
200:
201: static void
1.6 schwarze 202: ascii_letter(struct termp *p, int c)
1.1 schwarze 203: {
1.14 schwarze 204:
1.1 schwarze 205: putchar(c);
206: }
207:
208: static void
209: ascii_begin(struct termp *p)
210: {
211:
212: (*p->headf)(p, p->argf);
213: }
214:
215: static void
216: ascii_end(struct termp *p)
217: {
218:
219: (*p->footf)(p, p->argf);
220: }
221:
222: static void
223: ascii_endline(struct termp *p)
224: {
225:
226: putchar('\n');
227: }
228:
229: static void
230: ascii_advance(struct termp *p, size_t len)
231: {
1.14 schwarze 232: size_t i;
1.1 schwarze 233:
234: for (i = 0; i < len; i++)
235: putchar(' ');
236: }
1.3 schwarze 237:
238: static double
239: ascii_hspan(const struct termp *p, const struct roffsu *su)
240: {
241: double r;
242:
243: /*
1.17 schwarze 244: * Approximate based on character width.
245: * None of these will be actually correct given that an inch on
246: * the screen depends on character size, terminal, etc., etc.
1.3 schwarze 247: */
248: switch (su->unit) {
1.17 schwarze 249: case SCALE_BU:
250: r = su->scale * 10.0 / 240.0;
251: break;
1.14 schwarze 252: case SCALE_CM:
1.17 schwarze 253: r = su->scale * 10.0 / 2.54;
254: break;
255: case SCALE_FS:
256: r = su->scale * 2730.666;
1.3 schwarze 257: break;
1.14 schwarze 258: case SCALE_IN:
1.16 schwarze 259: r = su->scale * 10.0;
1.3 schwarze 260: break;
1.17 schwarze 261: case SCALE_MM:
262: r = su->scale / 100.0;
263: break;
1.14 schwarze 264: case SCALE_PC:
1.17 schwarze 265: r = su->scale * 10.0 / 6.0;
1.3 schwarze 266: break;
1.14 schwarze 267: case SCALE_PT:
1.17 schwarze 268: r = su->scale * 10.0 / 72.0;
1.3 schwarze 269: break;
1.14 schwarze 270: case SCALE_VS:
1.16 schwarze 271: r = su->scale * 2.0 - 1.0;
1.3 schwarze 272: break;
1.17 schwarze 273: case SCALE_EN:
1.18 schwarze 274: /* FALLTHROUGH */
1.17 schwarze 275: case SCALE_EM:
1.3 schwarze 276: r = su->scale;
1.17 schwarze 277: break;
1.20 schwarze 278: default:
1.17 schwarze 279: abort();
1.18 schwarze 280: /* NOTREACHED */
1.3 schwarze 281: }
282:
283: return(r);
1.22 schwarze 284: }
285:
286: const char *
287: ascii_uc2str(int uc)
288: {
289: static const char nbrsp[2] = { ASCII_NBRSP, '\0' };
290: static const char *tab[] = {
291: "<NUL>","<SOH>","<STX>","<ETX>","<EOT>","<ENQ>","<ACK>","<BEL>",
292: "<BS>", "\t", "<LF>", "<VT>", "<FF>", "<CR>", "<SO>", "<SI>",
293: "<DLE>","<DC1>","<DC2>","<DC3>","<DC4>","<NAK>","<SYN>","<ETB>",
294: "<CAN>","<EM>", "<SUB>","<ESC>","<FS>", "<GS>", "<RS>", "<US>",
295: " ", "!", "\"", "#", "$", "%", "&", "'",
296: "(", ")", "*", "+", ",", "-", ".", "/",
297: "0", "1", "2", "3", "4", "5", "6", "7",
298: "8", "9", ":", ";", "<", "=", ">", "?",
299: "@", "A", "B", "C", "D", "E", "F", "G",
300: "H", "I", "J", "K", "L", "M", "N", "O",
301: "P", "Q", "R", "S", "T", "U", "V", "W",
302: "X", "Y", "Z", "[", "\\", "]", "^", "_",
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", "{", "|", "}", "~", "<DEL>",
307: "<80>", "<81>", "<82>", "<83>", "<84>", "<85>", "<86>", "<87>",
308: "<88>", "<89>", "<8A>", "<8B>", "<8C>", "<8D>", "<8E>", "<8F>",
309: "<90>", "<91>", "<92>", "<93>", "<94>", "<95>", "<96>", "<97>",
310: "<99>", "<99>", "<9A>", "<9B>", "<9C>", "<9D>", "<9E>", "<9F>",
1.24 schwarze 311: nbrsp, "!", "/\bc", "GBP", "o\bx", "=\bY", "|", "<sec>",
312: "\"", "(C)", "_\ba", "<<", "~", "", "(R)", "-",
313: "<deg>","+-", "2", "3", "'", ",\bu", "<par>",".",
314: ",", "1", "_\bo", ">>", "1/4", "1/2", "3/4", "?",
315: "`\bA", "'\bA", "^\bA", "~\bA", "\"\bA","o\bA", "AE", ",\bC",
316: "`\bE", "'\bE", "^\bE", "\"\bE","`\bI", "'\bI", "^\bI", "\"\bI",
317: "-\bD", "~\bN", "`\bO", "'\bO", "^\bO", "~\bO", "\"\bO","x",
318: "/\bO", "`\bU", "'\bU", "^\bU", "\"\bU","'\bY", "Th", "ss",
319: "`\ba", "'\ba", "^\ba", "~\ba", "\"\ba","o\ba", "ae", ",\bc",
320: "`\be", "'\be", "^\be", "\"\be","`\bi", "'\bi", "^\bi", "\"\bi",
321: "d", "~\bn", "`\bo", "'\bo", "^\bo", "~\bo", "\"\bo","-:-",
322: "/\bo", "`\bu", "'\bu", "^\bu", "\"\bu","'\by", "th", "\"\by",
323: "A", "a", "A", "a", "A", "a", "'\bC", "'\bc",
324: "^\bC", "^\bc", "C", "c", "C", "c", "D", "d",
325: "/\bD", "/\bd", "E", "e", "E", "e", "E", "e",
326: "E", "e", "E", "e", "^\bG", "^\bg", "G", "g",
327: "G", "g", ",\bG", ",\bg", "^\bH", "^\bh", "/\bH", "/\bh",
328: "~\bI", "~\bi", "I", "i", "I", "i", "I", "i",
329: "I", "i", "IJ", "ij", "^\bJ", "^\bj", ",\bK", ",\bk",
330: "q", "'\bL", "'\bl", ",\bL", ",\bl", "L", "l", "L",
331: "l", "/\bL", "/\bl", "'\bN", "'\bn", ",\bN", ",\bn", "N",
1.22 schwarze 332: "n", "'n", "Ng", "ng", "O", "o", "O", "o",
1.24 schwarze 333: "O", "o", "OE", "oe", "'\bR", "'\br", ",\bR", ",\br",
334: "R", "r", "'\bS", "'\bs", "^\bS", "^\bs", ",\bS", ",\bs",
335: "S", "s", ",\bT", ",\bt", "T", "t", "/\bT", "/\bt",
336: "~\bU", "~\bu", "U", "u", "U", "u", "U", "u",
337: "U", "u", "U", "u", "^\bW", "^\bw", "^\bY", "^\by",
338: "\"\bY","'\bZ", "'\bz", "Z", "z", "Z", "z", "s",
1.22 schwarze 339: "b", "B", "B", "b", "6", "6", "O", "C",
340: "c", "D", "D", "D", "d", "d", "3", "@",
1.24 schwarze 341: "E", "F", ",\bf", "G", "G", "hv", "I", "/\bI",
342: "K", "k", "/\bl", "l", "W", "N", "n", "~\bO",
1.22 schwarze 343: "O", "o", "OI", "oi", "P", "p", "YR", "2",
344: "2", "SH", "sh", "t", "T", "t", "T", "U",
1.24 schwarze 345: "u", "Y", "V", "Y", "y", "/\bZ", "/\bz", "ZH",
346: "ZH", "zh", "zh", "/\b2", "5", "5", "ts", "w",
1.22 schwarze 347: "|", "||", "|=", "!", "DZ", "Dz", "dz", "LJ",
348: "Lj", "lj", "NJ", "Nj", "nj", "A", "a", "I",
349: "i", "O", "o", "U", "u", "U", "u", "U",
350: "u", "U", "u", "U", "u", "@", "A", "a",
1.24 schwarze 351: "A", "a", "AE", "ae", "/\bG", "/\bg", "G", "g",
1.22 schwarze 352: "K", "k", "O", "o", "O", "o", "ZH", "zh",
1.24 schwarze 353: "j", "DZ", "Dz", "dz", "'\bG", "'\bg", "HV", "W",
354: "`\bN", "`\bn", "A", "a", "'\bAE","'\bae","O", "o"};
1.22 schwarze 355:
1.26 schwarze 356: assert(uc >= 0);
1.23 schwarze 357: if ((size_t)uc < sizeof(tab)/sizeof(tab[0]))
358: return(tab[uc]);
359: return(mchars_uc2str(uc));
1.3 schwarze 360: }
361:
1.6 schwarze 362: static size_t
363: locale_width(const struct termp *p, int c)
364: {
365: int rc;
366:
1.15 schwarze 367: if (c == ASCII_NBRSP)
368: c = ' ';
369: rc = wcwidth(c);
370: if (rc < 0)
371: rc = 0;
372: return(rc);
1.6 schwarze 373: }
374:
375: static void
376: locale_advance(struct termp *p, size_t len)
377: {
1.14 schwarze 378: size_t i;
1.6 schwarze 379:
380: for (i = 0; i < len; i++)
381: putwchar(L' ');
382: }
383:
384: static void
385: locale_endline(struct termp *p)
386: {
387:
388: putwchar(L'\n');
389: }
390:
391: static void
392: locale_letter(struct termp *p, int c)
393: {
1.14 schwarze 394:
1.6 schwarze 395: putwchar(c);
396: }
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