Annotation of mandoc/term_ascii.c, Revision 1.43
1.43 ! schwarze 1: /* $Id: term_ascii.c,v 1.42 2014/12/31 16:52:40 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;
1.43 ! schwarze 66: const char *errstr;
! 67: int num;
1.1 kristaps 68:
1.14 kristaps 69: p = mandoc_calloc(1, sizeof(struct termp));
1.1 kristaps 70:
1.38 schwarze 71: p->symtab = mchars;
1.5 kristaps 72: p->tabwidth = 5;
1.23 schwarze 73: p->defrmargin = p->lastrmargin = 78;
1.41 schwarze 74: p->fontq = mandoc_reallocarray(NULL,
75: (p->fontsz = 8), sizeof(enum termfont));
76: p->fontq[0] = p->fontl = TERMFONT_NONE;
1.5 kristaps 77:
1.1 kristaps 78: p->begin = ascii_begin;
79: p->end = ascii_end;
1.15 kristaps 80: p->hspan = ascii_hspan;
81: p->type = TERMTYPE_CHAR;
82:
83: p->enc = TERMENC_ASCII;
84: p->advance = ascii_advance;
1.1 kristaps 85: p->endline = ascii_endline;
1.7 kristaps 86: p->letter = ascii_letter;
1.23 schwarze 87: p->setwidth = ascii_setwidth;
1.5 kristaps 88: p->width = ascii_width;
1.1 kristaps 89:
1.31 schwarze 90: #if HAVE_WCHAR
1.17 kristaps 91: if (TERMENC_ASCII != enc) {
92: v = TERMENC_LOCALE == enc ?
1.25 schwarze 93: setlocale(LC_ALL, "") :
94: setlocale(LC_CTYPE, "en_US.UTF-8");
1.17 kristaps 95: if (NULL != v && MB_CUR_MAX > 1) {
1.15 kristaps 96: p->enc = enc;
97: p->advance = locale_advance;
98: p->endline = locale_endline;
99: p->letter = locale_letter;
100: p->width = locale_width;
101: }
1.17 kristaps 102: }
1.15 kristaps 103: #endif
104:
1.19 schwarze 105: toks[0] = "indent";
106: toks[1] = "width";
1.20 schwarze 107: toks[2] = "mdoc";
1.33 schwarze 108: toks[3] = "synopsis";
109: toks[4] = NULL;
1.1 kristaps 110:
111: while (outopts && *outopts)
112: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.25 schwarze 113: case 0:
1.43 ! schwarze 114: num = strtonum(v, 0, 1000, &errstr);
! 115: if (!errstr)
! 116: p->defindent = num;
1.19 schwarze 117: break;
1.25 schwarze 118: case 1:
1.43 ! schwarze 119: num = strtonum(v, 0, 1000, &errstr);
! 120: if (!errstr)
! 121: p->defrmargin = num;
1.20 schwarze 122: break;
1.25 schwarze 123: case 2:
1.20 schwarze 124: /*
125: * Temporary, undocumented mode
126: * to imitate mdoc(7) output style.
127: */
128: p->mdocstyle = 1;
129: p->defindent = 5;
1.33 schwarze 130: break;
131: case 3:
132: p->synopsisonly = 1;
1.1 kristaps 133: break;
134: default:
135: break;
136: }
137:
138: /* Enforce a lower boundary. */
139: if (p->defrmargin < 58)
140: p->defrmargin = 58;
141:
142: return(p);
1.5 kristaps 143: }
144:
1.14 kristaps 145: void *
1.38 schwarze 146: ascii_alloc(const struct mchars *mchars, char *outopts)
1.14 kristaps 147: {
148:
1.38 schwarze 149: return(ascii_init(TERMENC_ASCII, mchars, outopts));
1.14 kristaps 150: }
1.17 kristaps 151:
152: void *
1.38 schwarze 153: utf8_alloc(const struct mchars *mchars, char *outopts)
1.17 kristaps 154: {
155:
1.38 schwarze 156: return(ascii_init(TERMENC_UTF8, mchars, outopts));
1.17 kristaps 157: }
158:
1.14 kristaps 159: void *
1.38 schwarze 160: locale_alloc(const struct mchars *mchars, char *outopts)
1.14 kristaps 161: {
162:
1.38 schwarze 163: return(ascii_init(TERMENC_LOCALE, mchars, outopts));
1.23 schwarze 164: }
165:
166: static void
1.24 schwarze 167: ascii_setwidth(struct termp *p, int iop, size_t width)
1.23 schwarze 168: {
169:
1.24 schwarze 170: p->rmargin = p->defrmargin;
1.40 schwarze 171: if (iop > 0)
1.24 schwarze 172: p->defrmargin += width;
1.40 schwarze 173: else if (iop == 0)
174: p->defrmargin = width ? width : p->lastrmargin;
175: else if (p->defrmargin > width)
1.24 schwarze 176: p->defrmargin -= width;
177: else
1.40 schwarze 178: p->defrmargin = 0;
1.24 schwarze 179: p->lastrmargin = p->rmargin;
180: p->rmargin = p->maxrmargin = p->defrmargin;
1.42 schwarze 181: }
182:
183: void
184: ascii_sepline(void *arg)
185: {
186: struct termp *p;
187: size_t i;
188:
189: p = (struct termp *)arg;
190: putchar('\n');
191: for (i = 0; i < p->defrmargin; i++)
192: putchar('-');
193: putchar('\n');
194: putchar('\n');
1.34 schwarze 195: }
196:
1.5 kristaps 197: static size_t
1.13 kristaps 198: ascii_width(const struct termp *p, int c)
1.5 kristaps 199: {
200:
201: return(1);
1.1 kristaps 202: }
203:
204: void
205: ascii_free(void *arg)
206: {
207:
208: term_free((struct termp *)arg);
209: }
210:
211: static void
1.13 kristaps 212: ascii_letter(struct termp *p, int c)
1.1 kristaps 213: {
1.25 schwarze 214:
1.1 kristaps 215: putchar(c);
216: }
217:
218: static void
219: ascii_begin(struct termp *p)
220: {
221:
222: (*p->headf)(p, p->argf);
223: }
224:
225: static void
226: ascii_end(struct termp *p)
227: {
228:
229: (*p->footf)(p, p->argf);
230: }
231:
232: static void
233: ascii_endline(struct termp *p)
234: {
235:
236: putchar('\n');
237: }
238:
239: static void
240: ascii_advance(struct termp *p, size_t len)
241: {
1.25 schwarze 242: size_t i;
1.1 kristaps 243:
244: for (i = 0; i < len; i++)
245: putchar(' ');
246: }
1.7 kristaps 247:
1.8 kristaps 248: static double
1.7 kristaps 249: ascii_hspan(const struct termp *p, const struct roffsu *su)
250: {
251: double r;
252:
253: /*
1.29 kristaps 254: * Approximate based on character width.
255: * None of these will be actually correct given that an inch on
256: * the screen depends on character size, terminal, etc., etc.
1.7 kristaps 257: */
258: switch (su->unit) {
1.29 kristaps 259: case SCALE_BU:
260: r = su->scale * 10.0 / 240.0;
261: break;
1.25 schwarze 262: case SCALE_CM:
1.29 kristaps 263: r = su->scale * 10.0 / 2.54;
264: break;
265: case SCALE_FS:
266: r = su->scale * 2730.666;
1.7 kristaps 267: break;
1.25 schwarze 268: case SCALE_IN:
1.27 schwarze 269: r = su->scale * 10.0;
1.7 kristaps 270: break;
1.29 kristaps 271: case SCALE_MM:
272: r = su->scale / 100.0;
273: break;
1.25 schwarze 274: case SCALE_PC:
1.29 kristaps 275: r = su->scale * 10.0 / 6.0;
1.7 kristaps 276: break;
1.25 schwarze 277: case SCALE_PT:
1.29 kristaps 278: r = su->scale * 10.0 / 72.0;
1.7 kristaps 279: break;
1.25 schwarze 280: case SCALE_VS:
1.27 schwarze 281: r = su->scale * 2.0 - 1.0;
1.7 kristaps 282: break;
1.29 kristaps 283: case SCALE_EN:
1.30 schwarze 284: /* FALLTHROUGH */
1.29 kristaps 285: case SCALE_EM:
1.7 kristaps 286: r = su->scale;
1.29 kristaps 287: break;
1.32 schwarze 288: default:
1.29 kristaps 289: abort();
1.30 schwarze 290: /* NOTREACHED */
1.7 kristaps 291: }
292:
1.8 kristaps 293: return(r);
1.36 schwarze 294: }
295:
296: const char *
297: ascii_uc2str(int uc)
298: {
299: static const char nbrsp[2] = { ASCII_NBRSP, '\0' };
300: static const char *tab[] = {
301: "<NUL>","<SOH>","<STX>","<ETX>","<EOT>","<ENQ>","<ACK>","<BEL>",
302: "<BS>", "\t", "<LF>", "<VT>", "<FF>", "<CR>", "<SO>", "<SI>",
303: "<DLE>","<DC1>","<DC2>","<DC3>","<DC4>","<NAK>","<SYN>","<ETB>",
304: "<CAN>","<EM>", "<SUB>","<ESC>","<FS>", "<GS>", "<RS>", "<US>",
305: " ", "!", "\"", "#", "$", "%", "&", "'",
306: "(", ")", "*", "+", ",", "-", ".", "/",
307: "0", "1", "2", "3", "4", "5", "6", "7",
308: "8", "9", ":", ";", "<", "=", ">", "?",
309: "@", "A", "B", "C", "D", "E", "F", "G",
310: "H", "I", "J", "K", "L", "M", "N", "O",
311: "P", "Q", "R", "S", "T", "U", "V", "W",
312: "X", "Y", "Z", "[", "\\", "]", "^", "_",
313: "`", "a", "b", "c", "d", "e", "f", "g",
314: "h", "i", "j", "k", "l", "m", "n", "o",
315: "p", "q", "r", "s", "t", "u", "v", "w",
316: "x", "y", "z", "{", "|", "}", "~", "<DEL>",
317: "<80>", "<81>", "<82>", "<83>", "<84>", "<85>", "<86>", "<87>",
318: "<88>", "<89>", "<8A>", "<8B>", "<8C>", "<8D>", "<8E>", "<8F>",
319: "<90>", "<91>", "<92>", "<93>", "<94>", "<95>", "<96>", "<97>",
320: "<99>", "<99>", "<9A>", "<9B>", "<9C>", "<9D>", "<9E>", "<9F>",
1.37 schwarze 321: nbrsp, "!", "/\bc", "GBP", "o\bx", "=\bY", "|", "<sec>",
322: "\"", "(C)", "_\ba", "<<", "~", "", "(R)", "-",
323: "<deg>","+-", "2", "3", "'", ",\bu", "<par>",".",
324: ",", "1", "_\bo", ">>", "1/4", "1/2", "3/4", "?",
325: "`\bA", "'\bA", "^\bA", "~\bA", "\"\bA","o\bA", "AE", ",\bC",
326: "`\bE", "'\bE", "^\bE", "\"\bE","`\bI", "'\bI", "^\bI", "\"\bI",
327: "-\bD", "~\bN", "`\bO", "'\bO", "^\bO", "~\bO", "\"\bO","x",
328: "/\bO", "`\bU", "'\bU", "^\bU", "\"\bU","'\bY", "Th", "ss",
329: "`\ba", "'\ba", "^\ba", "~\ba", "\"\ba","o\ba", "ae", ",\bc",
330: "`\be", "'\be", "^\be", "\"\be","`\bi", "'\bi", "^\bi", "\"\bi",
331: "d", "~\bn", "`\bo", "'\bo", "^\bo", "~\bo", "\"\bo","-:-",
332: "/\bo", "`\bu", "'\bu", "^\bu", "\"\bu","'\by", "th", "\"\by",
333: "A", "a", "A", "a", "A", "a", "'\bC", "'\bc",
334: "^\bC", "^\bc", "C", "c", "C", "c", "D", "d",
335: "/\bD", "/\bd", "E", "e", "E", "e", "E", "e",
336: "E", "e", "E", "e", "^\bG", "^\bg", "G", "g",
337: "G", "g", ",\bG", ",\bg", "^\bH", "^\bh", "/\bH", "/\bh",
338: "~\bI", "~\bi", "I", "i", "I", "i", "I", "i",
339: "I", "i", "IJ", "ij", "^\bJ", "^\bj", ",\bK", ",\bk",
340: "q", "'\bL", "'\bl", ",\bL", ",\bl", "L", "l", "L",
341: "l", "/\bL", "/\bl", "'\bN", "'\bn", ",\bN", ",\bn", "N",
1.36 schwarze 342: "n", "'n", "Ng", "ng", "O", "o", "O", "o",
1.37 schwarze 343: "O", "o", "OE", "oe", "'\bR", "'\br", ",\bR", ",\br",
344: "R", "r", "'\bS", "'\bs", "^\bS", "^\bs", ",\bS", ",\bs",
345: "S", "s", ",\bT", ",\bt", "T", "t", "/\bT", "/\bt",
346: "~\bU", "~\bu", "U", "u", "U", "u", "U", "u",
347: "U", "u", "U", "u", "^\bW", "^\bw", "^\bY", "^\by",
348: "\"\bY","'\bZ", "'\bz", "Z", "z", "Z", "z", "s",
1.36 schwarze 349: "b", "B", "B", "b", "6", "6", "O", "C",
350: "c", "D", "D", "D", "d", "d", "3", "@",
1.37 schwarze 351: "E", "F", ",\bf", "G", "G", "hv", "I", "/\bI",
352: "K", "k", "/\bl", "l", "W", "N", "n", "~\bO",
1.36 schwarze 353: "O", "o", "OI", "oi", "P", "p", "YR", "2",
354: "2", "SH", "sh", "t", "T", "t", "T", "U",
1.37 schwarze 355: "u", "Y", "V", "Y", "y", "/\bZ", "/\bz", "ZH",
356: "ZH", "zh", "zh", "/\b2", "5", "5", "ts", "w",
1.36 schwarze 357: "|", "||", "|=", "!", "DZ", "Dz", "dz", "LJ",
358: "Lj", "lj", "NJ", "Nj", "nj", "A", "a", "I",
359: "i", "O", "o", "U", "u", "U", "u", "U",
360: "u", "U", "u", "U", "u", "@", "A", "a",
1.37 schwarze 361: "A", "a", "AE", "ae", "/\bG", "/\bg", "G", "g",
1.36 schwarze 362: "K", "k", "O", "o", "O", "o", "ZH", "zh",
1.37 schwarze 363: "j", "DZ", "Dz", "dz", "'\bG", "'\bg", "HV", "W",
364: "`\bN", "`\bn", "A", "a", "'\bAE","'\bae","O", "o"};
1.36 schwarze 365:
1.39 schwarze 366: assert(uc >= 0);
1.36 schwarze 367: if ((size_t)uc < sizeof(tab)/sizeof(tab[0]))
368: return(tab[uc]);
369: return(mchars_uc2str(uc));
1.7 kristaps 370: }
371:
1.31 schwarze 372: #if HAVE_WCHAR
1.15 kristaps 373: static size_t
374: locale_width(const struct termp *p, int c)
375: {
376: int rc;
377:
1.26 schwarze 378: if (c == ASCII_NBRSP)
379: c = ' ';
380: rc = wcwidth(c);
381: if (rc < 0)
382: rc = 0;
383: return(rc);
1.15 kristaps 384: }
385:
386: static void
387: locale_advance(struct termp *p, size_t len)
388: {
1.25 schwarze 389: size_t i;
1.15 kristaps 390:
391: for (i = 0; i < len; i++)
392: putwchar(L' ');
393: }
394:
395: static void
396: locale_endline(struct termp *p)
397: {
398:
399: putwchar(L'\n');
400: }
401:
402: static void
403: locale_letter(struct termp *p, int c)
404: {
1.25 schwarze 405:
1.15 kristaps 406: putwchar(c);
407: }
408: #endif
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