Annotation of src/usr.bin/mandoc/term_ascii.c, Revision 1.39
1.39 ! schwarze 1: /* $OpenBSD: term_ascii.c,v 1.38 2015/11/12 21:49:29 schwarze Exp $ */
1.1 schwarze 2: /*
1.6 schwarze 3: * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.31 schwarze 4: * Copyright (c) 2014, 2015 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: *
1.31 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.1 schwarze 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.31 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.1 schwarze 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"
1.31 schwarze 32: #include "manconf.h"
1.1 schwarze 33: #include "main.h"
34:
1.37 schwarze 35: static struct termp *ascii_init(enum termenc, const struct manoutput *);
1.32 schwarze 36: static int ascii_hspan(const struct termp *,
1.3 schwarze 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);
1.32 schwarze 44: static void ascii_setwidth(struct termp *, int, int);
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 *
1.37 schwarze 53: ascii_init(enum termenc enc, const struct manoutput *outopts)
1.1 schwarze 54: {
55: char *v;
1.6 schwarze 56: struct termp *p;
1.1 schwarze 57:
1.6 schwarze 58: p = mandoc_calloc(1, sizeof(struct termp));
1.1 schwarze 59:
1.33 schwarze 60: p->line = 1;
1.2 schwarze 61: p->tabwidth = 5;
1.12 schwarze 62: p->defrmargin = p->lastrmargin = 78;
1.28 schwarze 63: p->fontq = mandoc_reallocarray(NULL,
64: (p->fontsz = 8), sizeof(enum termfont));
65: p->fontq[0] = p->fontl = TERMFONT_NONE;
1.2 schwarze 66:
1.1 schwarze 67: p->begin = ascii_begin;
68: p->end = ascii_end;
1.6 schwarze 69: p->hspan = ascii_hspan;
70: p->type = TERMTYPE_CHAR;
71:
72: p->enc = TERMENC_ASCII;
73: p->advance = ascii_advance;
1.1 schwarze 74: p->endline = ascii_endline;
1.3 schwarze 75: p->letter = ascii_letter;
1.12 schwarze 76: p->setwidth = ascii_setwidth;
1.2 schwarze 77: p->width = ascii_width;
1.1 schwarze 78:
1.6 schwarze 79: if (TERMENC_ASCII != enc) {
1.38 schwarze 80:
81: /*
82: * Do not change any of this to LC_ALL. It might break
83: * the formatting by subtly changing the behaviour of
84: * various functions, for example strftime(3). As a
85: * worst case, it might even cause buffer overflows.
86: */
87:
1.6 schwarze 88: v = TERMENC_LOCALE == enc ?
1.38 schwarze 89: setlocale(LC_CTYPE, "") :
1.14 schwarze 90: setlocale(LC_CTYPE, "en_US.UTF-8");
1.6 schwarze 91: if (NULL != v && MB_CUR_MAX > 1) {
92: p->enc = enc;
93: p->advance = locale_advance;
94: p->endline = locale_endline;
95: p->letter = locale_letter;
96: p->width = locale_width;
97: }
98: }
99:
1.31 schwarze 100: if (outopts->mdoc) {
101: p->mdocstyle = 1;
102: p->defindent = 5;
103: }
104: if (outopts->indent)
105: p->defindent = outopts->indent;
106: if (outopts->width)
107: p->defrmargin = outopts->width;
108: if (outopts->synopsisonly)
109: p->synopsisonly = 1;
1.1 schwarze 110:
1.35 schwarze 111: return p;
1.2 schwarze 112: }
113:
1.6 schwarze 114: void *
1.37 schwarze 115: ascii_alloc(const struct manoutput *outopts)
1.6 schwarze 116: {
117:
1.37 schwarze 118: return ascii_init(TERMENC_ASCII, outopts);
1.6 schwarze 119: }
120:
121: void *
1.37 schwarze 122: utf8_alloc(const struct manoutput *outopts)
1.6 schwarze 123: {
124:
1.37 schwarze 125: return ascii_init(TERMENC_UTF8, outopts);
1.6 schwarze 126: }
127:
128: void *
1.37 schwarze 129: locale_alloc(const struct manoutput *outopts)
1.6 schwarze 130: {
131:
1.37 schwarze 132: return ascii_init(TERMENC_LOCALE, outopts);
1.12 schwarze 133: }
134:
135: static void
1.32 schwarze 136: ascii_setwidth(struct termp *p, int iop, int width)
1.12 schwarze 137: {
138:
1.32 schwarze 139: width /= 24;
1.13 schwarze 140: p->rmargin = p->defrmargin;
1.27 schwarze 141: if (iop > 0)
1.13 schwarze 142: p->defrmargin += width;
1.27 schwarze 143: else if (iop == 0)
1.32 schwarze 144: p->defrmargin = width ? (size_t)width : p->lastrmargin;
145: else if (p->defrmargin > (size_t)width)
1.13 schwarze 146: p->defrmargin -= width;
147: else
1.27 schwarze 148: p->defrmargin = 0;
1.13 schwarze 149: p->lastrmargin = p->rmargin;
150: p->rmargin = p->maxrmargin = p->defrmargin;
1.29 schwarze 151: }
152:
153: void
1.39 ! schwarze 154: terminal_sepline(void *arg)
1.29 schwarze 155: {
156: struct termp *p;
157: size_t i;
158:
159: p = (struct termp *)arg;
1.39 ! schwarze 160: (*p->endline)(p);
1.29 schwarze 161: for (i = 0; i < p->defrmargin; i++)
1.39 ! schwarze 162: (*p->letter)(p, '-');
! 163: (*p->endline)(p);
! 164: (*p->endline)(p);
1.6 schwarze 165: }
1.2 schwarze 166:
167: static size_t
1.6 schwarze 168: ascii_width(const struct termp *p, int c)
1.2 schwarze 169: {
170:
1.35 schwarze 171: return 1;
1.1 schwarze 172: }
173:
174: void
175: ascii_free(void *arg)
176: {
177:
178: term_free((struct termp *)arg);
179: }
180:
181: static void
1.6 schwarze 182: ascii_letter(struct termp *p, int c)
1.1 schwarze 183: {
1.14 schwarze 184:
1.1 schwarze 185: putchar(c);
186: }
187:
188: static void
189: ascii_begin(struct termp *p)
190: {
191:
192: (*p->headf)(p, p->argf);
193: }
194:
195: static void
196: ascii_end(struct termp *p)
197: {
198:
199: (*p->footf)(p, p->argf);
200: }
201:
202: static void
203: ascii_endline(struct termp *p)
204: {
205:
1.33 schwarze 206: p->line++;
1.1 schwarze 207: putchar('\n');
208: }
209:
210: static void
211: ascii_advance(struct termp *p, size_t len)
212: {
1.14 schwarze 213: size_t i;
1.1 schwarze 214:
215: for (i = 0; i < len; i++)
216: putchar(' ');
217: }
1.3 schwarze 218:
1.32 schwarze 219: static int
1.3 schwarze 220: ascii_hspan(const struct termp *p, const struct roffsu *su)
221: {
222: double r;
223:
224: switch (su->unit) {
1.17 schwarze 225: case SCALE_BU:
1.32 schwarze 226: r = su->scale;
1.17 schwarze 227: break;
1.14 schwarze 228: case SCALE_CM:
1.32 schwarze 229: r = su->scale * 240.0 / 2.54;
1.17 schwarze 230: break;
231: case SCALE_FS:
1.32 schwarze 232: r = su->scale * 65536.0;
1.3 schwarze 233: break;
1.14 schwarze 234: case SCALE_IN:
1.32 schwarze 235: r = su->scale * 240.0;
1.3 schwarze 236: break;
1.17 schwarze 237: case SCALE_MM:
1.32 schwarze 238: r = su->scale * 0.24;
1.17 schwarze 239: break;
1.32 schwarze 240: case SCALE_VS:
1.14 schwarze 241: case SCALE_PC:
1.32 schwarze 242: r = su->scale * 40.0;
1.3 schwarze 243: break;
1.14 schwarze 244: case SCALE_PT:
1.32 schwarze 245: r = su->scale * 10.0 / 3.0;
1.3 schwarze 246: break;
1.17 schwarze 247: case SCALE_EN:
248: case SCALE_EM:
1.32 schwarze 249: r = su->scale * 24.0;
1.17 schwarze 250: break;
1.20 schwarze 251: default:
1.17 schwarze 252: abort();
1.3 schwarze 253: }
1.35 schwarze 254: return r > 0.0 ? r + 0.01 : r - 0.01;
1.22 schwarze 255: }
256:
257: const char *
258: ascii_uc2str(int uc)
259: {
260: static const char nbrsp[2] = { ASCII_NBRSP, '\0' };
261: static const char *tab[] = {
262: "<NUL>","<SOH>","<STX>","<ETX>","<EOT>","<ENQ>","<ACK>","<BEL>",
263: "<BS>", "\t", "<LF>", "<VT>", "<FF>", "<CR>", "<SO>", "<SI>",
264: "<DLE>","<DC1>","<DC2>","<DC3>","<DC4>","<NAK>","<SYN>","<ETB>",
265: "<CAN>","<EM>", "<SUB>","<ESC>","<FS>", "<GS>", "<RS>", "<US>",
266: " ", "!", "\"", "#", "$", "%", "&", "'",
267: "(", ")", "*", "+", ",", "-", ".", "/",
268: "0", "1", "2", "3", "4", "5", "6", "7",
269: "8", "9", ":", ";", "<", "=", ">", "?",
270: "@", "A", "B", "C", "D", "E", "F", "G",
271: "H", "I", "J", "K", "L", "M", "N", "O",
272: "P", "Q", "R", "S", "T", "U", "V", "W",
273: "X", "Y", "Z", "[", "\\", "]", "^", "_",
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", "{", "|", "}", "~", "<DEL>",
278: "<80>", "<81>", "<82>", "<83>", "<84>", "<85>", "<86>", "<87>",
279: "<88>", "<89>", "<8A>", "<8B>", "<8C>", "<8D>", "<8E>", "<8F>",
280: "<90>", "<91>", "<92>", "<93>", "<94>", "<95>", "<96>", "<97>",
281: "<99>", "<99>", "<9A>", "<9B>", "<9C>", "<9D>", "<9E>", "<9F>",
1.24 schwarze 282: nbrsp, "!", "/\bc", "GBP", "o\bx", "=\bY", "|", "<sec>",
283: "\"", "(C)", "_\ba", "<<", "~", "", "(R)", "-",
284: "<deg>","+-", "2", "3", "'", ",\bu", "<par>",".",
285: ",", "1", "_\bo", ">>", "1/4", "1/2", "3/4", "?",
286: "`\bA", "'\bA", "^\bA", "~\bA", "\"\bA","o\bA", "AE", ",\bC",
287: "`\bE", "'\bE", "^\bE", "\"\bE","`\bI", "'\bI", "^\bI", "\"\bI",
288: "-\bD", "~\bN", "`\bO", "'\bO", "^\bO", "~\bO", "\"\bO","x",
289: "/\bO", "`\bU", "'\bU", "^\bU", "\"\bU","'\bY", "Th", "ss",
290: "`\ba", "'\ba", "^\ba", "~\ba", "\"\ba","o\ba", "ae", ",\bc",
291: "`\be", "'\be", "^\be", "\"\be","`\bi", "'\bi", "^\bi", "\"\bi",
292: "d", "~\bn", "`\bo", "'\bo", "^\bo", "~\bo", "\"\bo","-:-",
293: "/\bo", "`\bu", "'\bu", "^\bu", "\"\bu","'\by", "th", "\"\by",
294: "A", "a", "A", "a", "A", "a", "'\bC", "'\bc",
295: "^\bC", "^\bc", "C", "c", "C", "c", "D", "d",
296: "/\bD", "/\bd", "E", "e", "E", "e", "E", "e",
297: "E", "e", "E", "e", "^\bG", "^\bg", "G", "g",
298: "G", "g", ",\bG", ",\bg", "^\bH", "^\bh", "/\bH", "/\bh",
299: "~\bI", "~\bi", "I", "i", "I", "i", "I", "i",
300: "I", "i", "IJ", "ij", "^\bJ", "^\bj", ",\bK", ",\bk",
301: "q", "'\bL", "'\bl", ",\bL", ",\bl", "L", "l", "L",
302: "l", "/\bL", "/\bl", "'\bN", "'\bn", ",\bN", ",\bn", "N",
1.22 schwarze 303: "n", "'n", "Ng", "ng", "O", "o", "O", "o",
1.24 schwarze 304: "O", "o", "OE", "oe", "'\bR", "'\br", ",\bR", ",\br",
305: "R", "r", "'\bS", "'\bs", "^\bS", "^\bs", ",\bS", ",\bs",
306: "S", "s", ",\bT", ",\bt", "T", "t", "/\bT", "/\bt",
307: "~\bU", "~\bu", "U", "u", "U", "u", "U", "u",
308: "U", "u", "U", "u", "^\bW", "^\bw", "^\bY", "^\by",
309: "\"\bY","'\bZ", "'\bz", "Z", "z", "Z", "z", "s",
1.22 schwarze 310: "b", "B", "B", "b", "6", "6", "O", "C",
311: "c", "D", "D", "D", "d", "d", "3", "@",
1.24 schwarze 312: "E", "F", ",\bf", "G", "G", "hv", "I", "/\bI",
313: "K", "k", "/\bl", "l", "W", "N", "n", "~\bO",
1.22 schwarze 314: "O", "o", "OI", "oi", "P", "p", "YR", "2",
315: "2", "SH", "sh", "t", "T", "t", "T", "U",
1.24 schwarze 316: "u", "Y", "V", "Y", "y", "/\bZ", "/\bz", "ZH",
317: "ZH", "zh", "zh", "/\b2", "5", "5", "ts", "w",
1.22 schwarze 318: "|", "||", "|=", "!", "DZ", "Dz", "dz", "LJ",
319: "Lj", "lj", "NJ", "Nj", "nj", "A", "a", "I",
320: "i", "O", "o", "U", "u", "U", "u", "U",
321: "u", "U", "u", "U", "u", "@", "A", "a",
1.24 schwarze 322: "A", "a", "AE", "ae", "/\bG", "/\bg", "G", "g",
1.22 schwarze 323: "K", "k", "O", "o", "O", "o", "ZH", "zh",
1.24 schwarze 324: "j", "DZ", "Dz", "dz", "'\bG", "'\bg", "HV", "W",
325: "`\bN", "`\bn", "A", "a", "'\bAE","'\bae","O", "o"};
1.22 schwarze 326:
1.26 schwarze 327: assert(uc >= 0);
1.23 schwarze 328: if ((size_t)uc < sizeof(tab)/sizeof(tab[0]))
1.35 schwarze 329: return tab[uc];
330: return mchars_uc2str(uc);
1.3 schwarze 331: }
332:
1.6 schwarze 333: static size_t
334: locale_width(const struct termp *p, int c)
335: {
336: int rc;
337:
1.15 schwarze 338: if (c == ASCII_NBRSP)
339: c = ' ';
340: rc = wcwidth(c);
341: if (rc < 0)
342: rc = 0;
1.35 schwarze 343: return rc;
1.6 schwarze 344: }
345:
346: static void
347: locale_advance(struct termp *p, size_t len)
348: {
1.14 schwarze 349: size_t i;
1.6 schwarze 350:
351: for (i = 0; i < len; i++)
352: putwchar(L' ');
353: }
354:
355: static void
356: locale_endline(struct termp *p)
357: {
358:
1.33 schwarze 359: p->line++;
1.6 schwarze 360: putwchar(L'\n');
361: }
362:
363: static void
364: locale_letter(struct termp *p, int c)
365: {
1.14 schwarze 366:
1.6 schwarze 367: putwchar(c);
368: }
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