Annotation of mandoc/term_ascii.c, Revision 1.40
1.40 ! schwarze 1: /* $Id: term_ascii.c,v 1.39 2014/10/28 18:49:33 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;
1.5 kristaps 72:
1.1 kristaps 73: p->begin = ascii_begin;
74: p->end = ascii_end;
1.15 kristaps 75: p->hspan = ascii_hspan;
76: p->type = TERMTYPE_CHAR;
77:
78: p->enc = TERMENC_ASCII;
79: p->advance = ascii_advance;
1.1 kristaps 80: p->endline = ascii_endline;
1.7 kristaps 81: p->letter = ascii_letter;
1.23 schwarze 82: p->setwidth = ascii_setwidth;
1.5 kristaps 83: p->width = ascii_width;
1.1 kristaps 84:
1.31 schwarze 85: #if HAVE_WCHAR
1.17 kristaps 86: if (TERMENC_ASCII != enc) {
87: v = TERMENC_LOCALE == enc ?
1.25 schwarze 88: setlocale(LC_ALL, "") :
89: setlocale(LC_CTYPE, "en_US.UTF-8");
1.17 kristaps 90: if (NULL != v && MB_CUR_MAX > 1) {
1.15 kristaps 91: p->enc = enc;
92: p->advance = locale_advance;
93: p->endline = locale_endline;
94: p->letter = locale_letter;
95: p->width = locale_width;
96: }
1.17 kristaps 97: }
1.15 kristaps 98: #endif
99:
1.19 schwarze 100: toks[0] = "indent";
101: toks[1] = "width";
1.20 schwarze 102: toks[2] = "mdoc";
1.33 schwarze 103: toks[3] = "synopsis";
104: toks[4] = NULL;
1.1 kristaps 105:
106: while (outopts && *outopts)
107: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.25 schwarze 108: case 0:
1.19 schwarze 109: p->defindent = (size_t)atoi(v);
110: break;
1.25 schwarze 111: case 1:
1.1 kristaps 112: p->defrmargin = (size_t)atoi(v);
1.20 schwarze 113: break;
1.25 schwarze 114: case 2:
1.20 schwarze 115: /*
116: * Temporary, undocumented mode
117: * to imitate mdoc(7) output style.
118: */
119: p->mdocstyle = 1;
120: p->defindent = 5;
1.33 schwarze 121: break;
122: case 3:
123: p->synopsisonly = 1;
1.1 kristaps 124: break;
125: default:
126: break;
127: }
128:
129: /* Enforce a lower boundary. */
130: if (p->defrmargin < 58)
131: p->defrmargin = 58;
132:
133: return(p);
1.5 kristaps 134: }
135:
1.14 kristaps 136: void *
1.38 schwarze 137: ascii_alloc(const struct mchars *mchars, char *outopts)
1.14 kristaps 138: {
139:
1.38 schwarze 140: return(ascii_init(TERMENC_ASCII, mchars, outopts));
1.14 kristaps 141: }
1.17 kristaps 142:
143: void *
1.38 schwarze 144: utf8_alloc(const struct mchars *mchars, char *outopts)
1.17 kristaps 145: {
146:
1.38 schwarze 147: return(ascii_init(TERMENC_UTF8, mchars, outopts));
1.17 kristaps 148: }
149:
1.14 kristaps 150: void *
1.38 schwarze 151: locale_alloc(const struct mchars *mchars, char *outopts)
1.14 kristaps 152: {
153:
1.38 schwarze 154: return(ascii_init(TERMENC_LOCALE, mchars, outopts));
1.23 schwarze 155: }
156:
157: static void
1.24 schwarze 158: ascii_setwidth(struct termp *p, int iop, size_t width)
1.23 schwarze 159: {
160:
1.24 schwarze 161: p->rmargin = p->defrmargin;
1.40 ! schwarze 162: if (iop > 0)
1.24 schwarze 163: p->defrmargin += width;
1.40 ! schwarze 164: else if (iop == 0)
! 165: p->defrmargin = width ? width : p->lastrmargin;
! 166: else if (p->defrmargin > width)
1.24 schwarze 167: p->defrmargin -= width;
168: else
1.40 ! schwarze 169: p->defrmargin = 0;
1.24 schwarze 170: p->lastrmargin = p->rmargin;
171: p->rmargin = p->maxrmargin = p->defrmargin;
1.34 schwarze 172: }
173:
1.5 kristaps 174: static size_t
1.13 kristaps 175: ascii_width(const struct termp *p, int c)
1.5 kristaps 176: {
177:
178: return(1);
1.1 kristaps 179: }
180:
181: void
182: ascii_free(void *arg)
183: {
184:
185: term_free((struct termp *)arg);
186: }
187:
188: static void
1.13 kristaps 189: ascii_letter(struct termp *p, int c)
1.1 kristaps 190: {
1.25 schwarze 191:
1.1 kristaps 192: putchar(c);
193: }
194:
195: static void
196: ascii_begin(struct termp *p)
197: {
198:
199: (*p->headf)(p, p->argf);
200: }
201:
202: static void
203: ascii_end(struct termp *p)
204: {
205:
206: (*p->footf)(p, p->argf);
207: }
208:
209: static void
210: ascii_endline(struct termp *p)
211: {
212:
213: putchar('\n');
214: }
215:
216: static void
217: ascii_advance(struct termp *p, size_t len)
218: {
1.25 schwarze 219: size_t i;
1.1 kristaps 220:
221: for (i = 0; i < len; i++)
222: putchar(' ');
223: }
1.7 kristaps 224:
1.8 kristaps 225: static double
1.7 kristaps 226: ascii_hspan(const struct termp *p, const struct roffsu *su)
227: {
228: double r;
229:
230: /*
1.29 kristaps 231: * Approximate based on character width.
232: * None of these will be actually correct given that an inch on
233: * the screen depends on character size, terminal, etc., etc.
1.7 kristaps 234: */
235: switch (su->unit) {
1.29 kristaps 236: case SCALE_BU:
237: r = su->scale * 10.0 / 240.0;
238: break;
1.25 schwarze 239: case SCALE_CM:
1.29 kristaps 240: r = su->scale * 10.0 / 2.54;
241: break;
242: case SCALE_FS:
243: r = su->scale * 2730.666;
1.7 kristaps 244: break;
1.25 schwarze 245: case SCALE_IN:
1.27 schwarze 246: r = su->scale * 10.0;
1.7 kristaps 247: break;
1.29 kristaps 248: case SCALE_MM:
249: r = su->scale / 100.0;
250: break;
1.25 schwarze 251: case SCALE_PC:
1.29 kristaps 252: r = su->scale * 10.0 / 6.0;
1.7 kristaps 253: break;
1.25 schwarze 254: case SCALE_PT:
1.29 kristaps 255: r = su->scale * 10.0 / 72.0;
1.7 kristaps 256: break;
1.25 schwarze 257: case SCALE_VS:
1.27 schwarze 258: r = su->scale * 2.0 - 1.0;
1.7 kristaps 259: break;
1.29 kristaps 260: case SCALE_EN:
1.30 schwarze 261: /* FALLTHROUGH */
1.29 kristaps 262: case SCALE_EM:
1.7 kristaps 263: r = su->scale;
1.29 kristaps 264: break;
1.32 schwarze 265: default:
1.29 kristaps 266: abort();
1.30 schwarze 267: /* NOTREACHED */
1.7 kristaps 268: }
269:
1.8 kristaps 270: return(r);
1.36 schwarze 271: }
272:
273: const char *
274: ascii_uc2str(int uc)
275: {
276: static const char nbrsp[2] = { ASCII_NBRSP, '\0' };
277: static const char *tab[] = {
278: "<NUL>","<SOH>","<STX>","<ETX>","<EOT>","<ENQ>","<ACK>","<BEL>",
279: "<BS>", "\t", "<LF>", "<VT>", "<FF>", "<CR>", "<SO>", "<SI>",
280: "<DLE>","<DC1>","<DC2>","<DC3>","<DC4>","<NAK>","<SYN>","<ETB>",
281: "<CAN>","<EM>", "<SUB>","<ESC>","<FS>", "<GS>", "<RS>", "<US>",
282: " ", "!", "\"", "#", "$", "%", "&", "'",
283: "(", ")", "*", "+", ",", "-", ".", "/",
284: "0", "1", "2", "3", "4", "5", "6", "7",
285: "8", "9", ":", ";", "<", "=", ">", "?",
286: "@", "A", "B", "C", "D", "E", "F", "G",
287: "H", "I", "J", "K", "L", "M", "N", "O",
288: "P", "Q", "R", "S", "T", "U", "V", "W",
289: "X", "Y", "Z", "[", "\\", "]", "^", "_",
290: "`", "a", "b", "c", "d", "e", "f", "g",
291: "h", "i", "j", "k", "l", "m", "n", "o",
292: "p", "q", "r", "s", "t", "u", "v", "w",
293: "x", "y", "z", "{", "|", "}", "~", "<DEL>",
294: "<80>", "<81>", "<82>", "<83>", "<84>", "<85>", "<86>", "<87>",
295: "<88>", "<89>", "<8A>", "<8B>", "<8C>", "<8D>", "<8E>", "<8F>",
296: "<90>", "<91>", "<92>", "<93>", "<94>", "<95>", "<96>", "<97>",
297: "<99>", "<99>", "<9A>", "<9B>", "<9C>", "<9D>", "<9E>", "<9F>",
1.37 schwarze 298: nbrsp, "!", "/\bc", "GBP", "o\bx", "=\bY", "|", "<sec>",
299: "\"", "(C)", "_\ba", "<<", "~", "", "(R)", "-",
300: "<deg>","+-", "2", "3", "'", ",\bu", "<par>",".",
301: ",", "1", "_\bo", ">>", "1/4", "1/2", "3/4", "?",
302: "`\bA", "'\bA", "^\bA", "~\bA", "\"\bA","o\bA", "AE", ",\bC",
303: "`\bE", "'\bE", "^\bE", "\"\bE","`\bI", "'\bI", "^\bI", "\"\bI",
304: "-\bD", "~\bN", "`\bO", "'\bO", "^\bO", "~\bO", "\"\bO","x",
305: "/\bO", "`\bU", "'\bU", "^\bU", "\"\bU","'\bY", "Th", "ss",
306: "`\ba", "'\ba", "^\ba", "~\ba", "\"\ba","o\ba", "ae", ",\bc",
307: "`\be", "'\be", "^\be", "\"\be","`\bi", "'\bi", "^\bi", "\"\bi",
308: "d", "~\bn", "`\bo", "'\bo", "^\bo", "~\bo", "\"\bo","-:-",
309: "/\bo", "`\bu", "'\bu", "^\bu", "\"\bu","'\by", "th", "\"\by",
310: "A", "a", "A", "a", "A", "a", "'\bC", "'\bc",
311: "^\bC", "^\bc", "C", "c", "C", "c", "D", "d",
312: "/\bD", "/\bd", "E", "e", "E", "e", "E", "e",
313: "E", "e", "E", "e", "^\bG", "^\bg", "G", "g",
314: "G", "g", ",\bG", ",\bg", "^\bH", "^\bh", "/\bH", "/\bh",
315: "~\bI", "~\bi", "I", "i", "I", "i", "I", "i",
316: "I", "i", "IJ", "ij", "^\bJ", "^\bj", ",\bK", ",\bk",
317: "q", "'\bL", "'\bl", ",\bL", ",\bl", "L", "l", "L",
318: "l", "/\bL", "/\bl", "'\bN", "'\bn", ",\bN", ",\bn", "N",
1.36 schwarze 319: "n", "'n", "Ng", "ng", "O", "o", "O", "o",
1.37 schwarze 320: "O", "o", "OE", "oe", "'\bR", "'\br", ",\bR", ",\br",
321: "R", "r", "'\bS", "'\bs", "^\bS", "^\bs", ",\bS", ",\bs",
322: "S", "s", ",\bT", ",\bt", "T", "t", "/\bT", "/\bt",
323: "~\bU", "~\bu", "U", "u", "U", "u", "U", "u",
324: "U", "u", "U", "u", "^\bW", "^\bw", "^\bY", "^\by",
325: "\"\bY","'\bZ", "'\bz", "Z", "z", "Z", "z", "s",
1.36 schwarze 326: "b", "B", "B", "b", "6", "6", "O", "C",
327: "c", "D", "D", "D", "d", "d", "3", "@",
1.37 schwarze 328: "E", "F", ",\bf", "G", "G", "hv", "I", "/\bI",
329: "K", "k", "/\bl", "l", "W", "N", "n", "~\bO",
1.36 schwarze 330: "O", "o", "OI", "oi", "P", "p", "YR", "2",
331: "2", "SH", "sh", "t", "T", "t", "T", "U",
1.37 schwarze 332: "u", "Y", "V", "Y", "y", "/\bZ", "/\bz", "ZH",
333: "ZH", "zh", "zh", "/\b2", "5", "5", "ts", "w",
1.36 schwarze 334: "|", "||", "|=", "!", "DZ", "Dz", "dz", "LJ",
335: "Lj", "lj", "NJ", "Nj", "nj", "A", "a", "I",
336: "i", "O", "o", "U", "u", "U", "u", "U",
337: "u", "U", "u", "U", "u", "@", "A", "a",
1.37 schwarze 338: "A", "a", "AE", "ae", "/\bG", "/\bg", "G", "g",
1.36 schwarze 339: "K", "k", "O", "o", "O", "o", "ZH", "zh",
1.37 schwarze 340: "j", "DZ", "Dz", "dz", "'\bG", "'\bg", "HV", "W",
341: "`\bN", "`\bn", "A", "a", "'\bAE","'\bae","O", "o"};
1.36 schwarze 342:
1.39 schwarze 343: assert(uc >= 0);
1.36 schwarze 344: if ((size_t)uc < sizeof(tab)/sizeof(tab[0]))
345: return(tab[uc]);
346: return(mchars_uc2str(uc));
1.7 kristaps 347: }
348:
1.31 schwarze 349: #if HAVE_WCHAR
1.15 kristaps 350: static size_t
351: locale_width(const struct termp *p, int c)
352: {
353: int rc;
354:
1.26 schwarze 355: if (c == ASCII_NBRSP)
356: c = ' ';
357: rc = wcwidth(c);
358: if (rc < 0)
359: rc = 0;
360: return(rc);
1.15 kristaps 361: }
362:
363: static void
364: locale_advance(struct termp *p, size_t len)
365: {
1.25 schwarze 366: size_t i;
1.15 kristaps 367:
368: for (i = 0; i < len; i++)
369: putwchar(L' ');
370: }
371:
372: static void
373: locale_endline(struct termp *p)
374: {
375:
376: putwchar(L'\n');
377: }
378:
379: static void
380: locale_letter(struct termp *p, int c)
381: {
1.25 schwarze 382:
1.15 kristaps 383: putwchar(c);
384: }
385: #endif
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