version 1.187, 2011/05/14 17:54:42 |
version 1.236, 2014/11/21 01:52:53 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2010-2014 Ingo Schwarze <schwarze@openbsd.org> |
* |
* |
* Permission to use, copy, modify, and distribute this software for any |
* Permission to use, copy, modify, and distribute this software for any |
* purpose with or without fee is hereby granted, provided that the above |
* purpose with or without fee is hereby granted, provided that the above |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
*/ |
*/ |
#ifdef HAVE_CONFIG_H |
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#include "config.h" |
#include "config.h" |
#endif |
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#include <sys/types.h> |
#include <sys/types.h> |
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#include <assert.h> |
#include <assert.h> |
#include <ctype.h> |
#include <ctype.h> |
#include <stdint.h> |
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#include <stdio.h> |
#include <stdio.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
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#include "mandoc.h" |
#include "mandoc.h" |
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#include "mandoc_aux.h" |
#include "out.h" |
#include "out.h" |
#include "term.h" |
#include "term.h" |
#include "main.h" |
#include "main.h" |
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static void spec(struct termp *, const char *, size_t); |
static size_t cond_width(const struct termp *, int, int *); |
static void res(struct termp *, const char *, size_t); |
static void adjbuf(struct termp *p, size_t); |
static void bufferc(struct termp *, char); |
static void bufferc(struct termp *, char); |
static void adjbuf(struct termp *p, size_t); |
static void encode(struct termp *, const char *, size_t); |
static void encode(struct termp *, const char *, size_t); |
static void encode1(struct termp *, int); |
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void |
void |
term_free(struct termp *p) |
term_free(struct termp *p) |
{ |
{ |
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if (p->buf) |
free(p->buf); |
free(p->buf); |
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if (p->symtab) |
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mchars_free(p->symtab); |
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free(p); |
free(p); |
} |
} |
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void |
void |
term_begin(struct termp *p, term_margin head, |
term_begin(struct termp *p, term_margin head, |
term_margin foot, const void *arg) |
term_margin foot, const void *arg) |
{ |
{ |
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Line 64 term_begin(struct termp *p, term_margin head, |
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Line 57 term_begin(struct termp *p, term_margin head, |
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(*p->begin)(p); |
(*p->begin)(p); |
} |
} |
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void |
void |
term_end(struct termp *p) |
term_end(struct termp *p) |
{ |
{ |
Line 72 term_end(struct termp *p) |
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Line 64 term_end(struct termp *p) |
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(*p->end)(p); |
(*p->end)(p); |
} |
} |
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struct termp * |
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term_alloc(enum termenc enc) |
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{ |
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struct termp *p; |
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p = mandoc_calloc(1, sizeof(struct termp)); |
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p->enc = enc; |
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return(p); |
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} |
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/* |
/* |
* Flush a line of text. A "line" is loosely defined as being something |
* Flush a chunk of text. By default, break the output line each time |
* that should be followed by a newline, regardless of whether it's |
* the right margin is reached, and continue output on the next line |
* broken apart by newlines getting there. A line can also be a |
* at the same offset as the chunk itself. By default, also break the |
* fragment of a columnar list (`Bl -tag' or `Bl -column'), which does |
* output line at the end of the chunk. |
* not have a trailing newline. |
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* |
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* The following flags may be specified: |
* The following flags may be specified: |
* |
* |
* - TERMP_NOLPAD: when beginning to write the line, don't left-pad the |
* - TERMP_NOBREAK: Do not break the output line at the right margin, |
* offset value. This is useful when doing columnar lists where the |
* but only at the max right margin. Also, do not break the output |
* prior column has right-padded. |
* line at the end of the chunk, such that the next call can pad to |
* |
* the next column. However, if less than p->trailspace blanks, |
* - TERMP_NOBREAK: this is the most important and is used when making |
* which can be 0, 1, or 2, remain to the right margin, the line |
* columns. In short: don't print a newline and instead pad to the |
* will be broken. |
* right margin. Used in conjunction with TERMP_NOLPAD. |
* - TERMP_BRIND: If the chunk does not fit and the output line has |
* |
* to be broken, start the next line at the right margin instead |
* - TERMP_TWOSPACE: when padding, make sure there are at least two |
* of at the offset. Used together with TERMP_NOBREAK for the tags |
* space characters of padding. Otherwise, rather break the line. |
* in various kinds of tagged lists. |
* |
* - TERMP_DANGLE: Do not break the output line at the right margin, |
* - TERMP_DANGLE: don't newline when TERMP_NOBREAK is specified and |
* append the next chunk after it even if this one is too long. |
* the line is overrun, and don't pad-right if it's underrun. |
* To be used together with TERMP_NOBREAK. |
* |
* - TERMP_HANG: Like TERMP_DANGLE, and also suppress padding before |
* - TERMP_HANG: like TERMP_DANGLE, but doesn't newline when |
* the next chunk if this column is not full. |
* overruning, instead save the position and continue at that point |
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* when the next invocation. |
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* |
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* In-line line breaking: |
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* |
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* If TERMP_NOBREAK is specified and the line overruns the right |
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* margin, it will break and pad-right to the right margin after |
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* writing. If maxrmargin is violated, it will break and continue |
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* writing from the right-margin, which will lead to the above scenario |
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* upon exit. Otherwise, the line will break at the right margin. |
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*/ |
*/ |
void |
void |
term_flushln(struct termp *p) |
term_flushln(struct termp *p) |
{ |
{ |
int i; /* current input position in p->buf */ |
size_t i; /* current input position in p->buf */ |
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int ntab; /* number of tabs to prepend */ |
size_t vis; /* current visual position on output */ |
size_t vis; /* current visual position on output */ |
size_t vbl; /* number of blanks to prepend to output */ |
size_t vbl; /* number of blanks to prepend to output */ |
size_t vend; /* end of word visual position on output */ |
size_t vend; /* end of word visual position on output */ |
size_t bp; /* visual right border position */ |
size_t bp; /* visual right border position */ |
size_t dv; /* temporary for visual pos calculations */ |
size_t dv; /* temporary for visual pos calculations */ |
int j; /* temporary loop index for p->buf */ |
size_t j; /* temporary loop index for p->buf */ |
int jhy; /* last hyph before overflow w/r/t j */ |
size_t jhy; /* last hyph before overflow w/r/t j */ |
size_t maxvis; /* output position of visible boundary */ |
size_t maxvis; /* output position of visible boundary */ |
size_t mmax; /* used in calculating bp */ |
size_t rmargin; /* the rightmost of the two margins */ |
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/* |
/* |
* First, establish the maximum columns of "visible" content. |
* First, establish the maximum columns of "visible" content. |
* This is usually the difference between the right-margin and |
* This is usually the difference between the right-margin and |
* an indentation, but can be, for tagged lists or columns, a |
* an indentation, but can be, for tagged lists or columns, a |
* small set of values. |
* small set of values. |
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* |
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* The following unsigned-signed subtractions look strange, |
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* but they are actually correct. If the int p->overstep |
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* is negative, it gets sign extended. Subtracting that |
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* very large size_t effectively adds a small number to dv. |
*/ |
*/ |
assert (p->rmargin >= p->offset); |
rmargin = p->rmargin > p->offset ? p->rmargin : p->offset; |
dv = p->rmargin - p->offset; |
dv = p->rmargin - p->offset; |
maxvis = (int)dv > p->overstep ? dv - (size_t)p->overstep : 0; |
maxvis = (int)dv > p->overstep ? dv - (size_t)p->overstep : 0; |
dv = p->maxrmargin - p->offset; |
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mmax = (int)dv > p->overstep ? dv - (size_t)p->overstep : 0; |
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bp = TERMP_NOBREAK & p->flags ? mmax : maxvis; |
if (p->flags & TERMP_NOBREAK) { |
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dv = p->maxrmargin > p->offset ? |
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p->maxrmargin - p->offset : 0; |
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bp = (int)dv > p->overstep ? |
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dv - (size_t)p->overstep : 0; |
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} else |
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bp = maxvis; |
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/* |
/* |
* Indent the first line of a paragraph. |
* Calculate the required amount of padding. |
*/ |
*/ |
vbl = p->flags & TERMP_NOLPAD ? (size_t)0 : p->offset; |
vbl = p->offset + p->overstep > p->viscol ? |
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p->offset + p->overstep - p->viscol : 0; |
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vis = vend = 0; |
vis = vend = 0; |
i = 0; |
i = 0; |
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while (i < (int)p->col) { |
while (i < p->col) { |
/* |
/* |
* Handle literal tab characters: collapse all |
* Handle literal tab characters: collapse all |
* subsequent tabs into a single huge set of spaces. |
* subsequent tabs into a single huge set of spaces. |
*/ |
*/ |
while (i < (int)p->col && '\t' == p->buf[i]) { |
ntab = 0; |
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while (i < p->col && '\t' == p->buf[i]) { |
vend = (vis / p->tabwidth + 1) * p->tabwidth; |
vend = (vis / p->tabwidth + 1) * p->tabwidth; |
vbl += vend - vis; |
vbl += vend - vis; |
vis = vend; |
vis = vend; |
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ntab++; |
i++; |
i++; |
} |
} |
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Line 174 term_flushln(struct termp *p) |
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Line 155 term_flushln(struct termp *p) |
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* space is printed according to regular spacing rules). |
* space is printed according to regular spacing rules). |
*/ |
*/ |
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for (j = i, jhy = 0; j < (int)p->col; j++) { |
for (j = i, jhy = 0; j < p->col; j++) { |
if ((j && ' ' == p->buf[j]) || '\t' == p->buf[j]) |
if (' ' == p->buf[j] || '\t' == p->buf[j]) |
break; |
break; |
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/* Back over the the last printed character. */ |
/* Back over the the last printed character. */ |
Line 187 term_flushln(struct termp *p) |
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Line 168 term_flushln(struct termp *p) |
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/* Regular word. */ |
/* Regular word. */ |
/* Break at the hyphen point if we overrun. */ |
/* Break at the hyphen point if we overrun. */ |
if (vend > vis && vend < bp && |
if (vend > vis && vend < bp && |
ASCII_HYPH == p->buf[j]) |
(ASCII_HYPH == p->buf[j] || |
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ASCII_BREAK == p->buf[j])) |
jhy = j; |
jhy = j; |
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/* |
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* Hyphenation now decided, put back a real |
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* hyphen such that we get the correct width. |
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*/ |
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if (ASCII_HYPH == p->buf[j]) |
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p->buf[j] = '-'; |
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vend += (*p->width)(p, p->buf[j]); |
vend += (*p->width)(p, p->buf[j]); |
} |
} |
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Line 201 term_flushln(struct termp *p) |
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Line 190 term_flushln(struct termp *p) |
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if (vend > bp && 0 == jhy && vis > 0) { |
if (vend > bp && 0 == jhy && vis > 0) { |
vend -= vis; |
vend -= vis; |
(*p->endline)(p); |
(*p->endline)(p); |
if (TERMP_NOBREAK & p->flags) { |
p->viscol = 0; |
p->viscol = p->rmargin; |
if (TERMP_BRIND & p->flags) { |
(*p->advance)(p, p->rmargin); |
vbl = rmargin; |
vend += p->rmargin - p->offset; |
vend += rmargin - p->offset; |
} else { |
} else |
p->viscol = 0; |
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vbl = p->offset; |
vbl = p->offset; |
} |
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/* Remove the p->overstep width. */ |
/* use pending tabs on the new line */ |
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if (0 < ntab) |
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vbl += ntab * p->tabwidth; |
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/* |
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* Remove the p->overstep width. |
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* Again, if p->overstep is negative, |
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* sign extension does the right thing. |
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*/ |
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bp += (size_t)p->overstep; |
bp += (size_t)p->overstep; |
p->overstep = 0; |
p->overstep = 0; |
} |
} |
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/* Write out the [remaining] word. */ |
/* Write out the [remaining] word. */ |
for ( ; i < (int)p->col; i++) { |
for ( ; i < p->col; i++) { |
if (vend > bp && jhy > 0 && i > jhy) |
if (vend > bp && jhy > 0 && i > jhy) |
break; |
break; |
if ('\t' == p->buf[i]) |
if ('\t' == p->buf[i]) |
break; |
break; |
if (' ' == p->buf[i]) { |
if (' ' == p->buf[i]) { |
j = i; |
j = i; |
while (' ' == p->buf[i]) |
while (i < p->col && ' ' == p->buf[i]) |
i++; |
i++; |
dv = (size_t)(i - j) * (*p->width)(p, ' '); |
dv = (i - j) * (*p->width)(p, ' '); |
vbl += dv; |
vbl += dv; |
vend += dv; |
vend += dv; |
break; |
break; |
Line 235 term_flushln(struct termp *p) |
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Line 231 term_flushln(struct termp *p) |
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vbl += (*p->width)(p, ' '); |
vbl += (*p->width)(p, ' '); |
continue; |
continue; |
} |
} |
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if (ASCII_BREAK == p->buf[i]) |
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continue; |
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/* |
/* |
* Now we definitely know there will be |
* Now we definitely know there will be |
Line 247 term_flushln(struct termp *p) |
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Line 245 term_flushln(struct termp *p) |
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vbl = 0; |
vbl = 0; |
} |
} |
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if (ASCII_HYPH == p->buf[i]) { |
(*p->letter)(p, p->buf[i]); |
(*p->letter)(p, '-'); |
if (8 == p->buf[i]) |
p->viscol += (*p->width)(p, '-'); |
p->viscol -= (*p->width)(p, p->buf[i-1]); |
} else { |
else |
(*p->letter)(p, p->buf[i]); |
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p->viscol += (*p->width)(p, p->buf[i]); |
p->viscol += (*p->width)(p, p->buf[i]); |
} |
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} |
} |
vis = vend; |
vis = vend; |
} |
} |
Line 262 term_flushln(struct termp *p) |
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Line 258 term_flushln(struct termp *p) |
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* If there was trailing white space, it was not printed; |
* If there was trailing white space, it was not printed; |
* so reset the cursor position accordingly. |
* so reset the cursor position accordingly. |
*/ |
*/ |
vis -= vbl; |
if (vis > vbl) |
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vis -= vbl; |
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else |
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vis = 0; |
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p->col = 0; |
p->col = 0; |
p->overstep = 0; |
p->overstep = 0; |
Line 274 term_flushln(struct termp *p) |
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Line 273 term_flushln(struct termp *p) |
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} |
} |
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if (TERMP_HANG & p->flags) { |
if (TERMP_HANG & p->flags) { |
/* We need one blank after the tag. */ |
p->overstep = (int)(vis - maxvis + |
p->overstep = (int)(vis - maxvis + (*p->width)(p, ' ')); |
p->trailspace * (*p->width)(p, ' ')); |
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/* |
/* |
* Behave exactly the same way as groff: |
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* If we have overstepped the margin, temporarily move |
* If we have overstepped the margin, temporarily move |
* it to the right and flag the rest of the line to be |
* it to the right and flag the rest of the line to be |
* shorter. |
* shorter. |
* If we landed right at the margin, be happy. |
* If there is a request to keep the columns together, |
* If we are one step before the margin, temporarily |
* allow negative overstep when the column is not full. |
* move it one step LEFT and flag the rest of the line |
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* to be longer. |
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*/ |
*/ |
if (p->overstep >= -1) { |
if (p->trailspace && p->overstep < 0) |
assert((int)maxvis + p->overstep >= 0); |
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maxvis += (size_t)p->overstep; |
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} else |
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p->overstep = 0; |
p->overstep = 0; |
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return; |
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} else if (TERMP_DANGLE & p->flags) |
} else if (TERMP_DANGLE & p->flags) |
return; |
return; |
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/* Right-pad. */ |
/* If the column was overrun, break the line. */ |
if (maxvis > vis + |
if (maxvis < vis + p->trailspace * (*p->width)(p, ' ')) { |
((TERMP_TWOSPACE & p->flags) ? (*p->width)(p, ' ') : 0)) { |
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p->viscol += maxvis - vis; |
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(*p->advance)(p, maxvis - vis); |
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vis += (maxvis - vis); |
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} else { /* ...or newline break. */ |
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(*p->endline)(p); |
(*p->endline)(p); |
p->viscol = p->rmargin; |
p->viscol = 0; |
(*p->advance)(p, p->rmargin); |
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} |
} |
} |
} |
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/* |
/* |
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* A newline only breaks an existing line; it won't assert vertical |
* A newline only breaks an existing line; it won't assert vertical |
* space. All data in the output buffer is flushed prior to the newline |
* space. All data in the output buffer is flushed prior to the newline |
* assertion. |
* assertion. |
Line 320 term_newln(struct termp *p) |
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Line 307 term_newln(struct termp *p) |
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{ |
{ |
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p->flags |= TERMP_NOSPACE; |
p->flags |= TERMP_NOSPACE; |
if (0 == p->col && 0 == p->viscol) { |
if (p->col || p->viscol) |
p->flags &= ~TERMP_NOLPAD; |
term_flushln(p); |
return; |
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} |
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term_flushln(p); |
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p->flags &= ~TERMP_NOLPAD; |
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} |
} |
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/* |
/* |
* Asserts a vertical space (a full, empty line-break between lines). |
* Asserts a vertical space (a full, empty line-break between lines). |
* Note that if used twice, this will cause two blank spaces and so on. |
* Note that if used twice, this will cause two blank spaces and so on. |
Line 341 term_vspace(struct termp *p) |
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Line 323 term_vspace(struct termp *p) |
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term_newln(p); |
term_newln(p); |
p->viscol = 0; |
p->viscol = 0; |
(*p->endline)(p); |
if (0 < p->skipvsp) |
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p->skipvsp--; |
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else |
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(*p->endline)(p); |
} |
} |
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static void |
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numbered(struct termp *p, const char *word, size_t len) |
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{ |
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char c; |
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if ('\0' != (c = mchars_num2char(word, len))) |
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encode(p, &c, 1); |
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} |
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static void |
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spec(struct termp *p, const char *word, size_t len) |
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{ |
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const char *rhs; |
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size_t sz; |
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rhs = mchars_spec2str(p->symtab, word, len, &sz); |
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if (rhs) |
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encode(p, rhs, sz); |
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else if (1 == len) |
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encode(p, word, len); |
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} |
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static void |
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res(struct termp *p, const char *word, size_t len) |
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{ |
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const char *rhs; |
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size_t sz; |
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rhs = mchars_res2str(p->symtab, word, len, &sz); |
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if (rhs) |
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encode(p, rhs, sz); |
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} |
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void |
void |
term_fontlast(struct termp *p) |
term_fontlast(struct termp *p) |
{ |
{ |
Line 391 term_fontlast(struct termp *p) |
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Line 339 term_fontlast(struct termp *p) |
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p->fontq[p->fonti] = f; |
p->fontq[p->fonti] = f; |
} |
} |
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void |
void |
term_fontrepl(struct termp *p, enum termfont f) |
term_fontrepl(struct termp *p, enum termfont f) |
{ |
{ |
Line 400 term_fontrepl(struct termp *p, enum termfont f) |
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Line 347 term_fontrepl(struct termp *p, enum termfont f) |
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p->fontq[p->fonti] = f; |
p->fontq[p->fonti] = f; |
} |
} |
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void |
void |
term_fontpush(struct termp *p, enum termfont f) |
term_fontpush(struct termp *p, enum termfont f) |
{ |
{ |
Line 410 term_fontpush(struct termp *p, enum termfont f) |
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Line 356 term_fontpush(struct termp *p, enum termfont f) |
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p->fontq[++p->fonti] = f; |
p->fontq[++p->fonti] = f; |
} |
} |
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const void * |
const void * |
term_fontq(struct termp *p) |
term_fontq(struct termp *p) |
{ |
{ |
Line 418 term_fontq(struct termp *p) |
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Line 363 term_fontq(struct termp *p) |
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return(&p->fontq[p->fonti]); |
return(&p->fontq[p->fonti]); |
} |
} |
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enum termfont |
enum termfont |
term_fonttop(struct termp *p) |
term_fonttop(struct termp *p) |
{ |
{ |
Line 426 term_fonttop(struct termp *p) |
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Line 370 term_fonttop(struct termp *p) |
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return(p->fontq[p->fonti]); |
return(p->fontq[p->fonti]); |
} |
} |
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void |
void |
term_fontpopq(struct termp *p, const void *key) |
term_fontpopq(struct termp *p, const void *key) |
{ |
{ |
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|
while (p->fonti >= 0 && key != &p->fontq[p->fonti]) |
while (p->fonti >= 0 && key < (void *)(p->fontq + p->fonti)) |
p->fonti--; |
p->fonti--; |
assert(p->fonti >= 0); |
assert(p->fonti >= 0); |
} |
} |
|
|
|
|
void |
void |
term_fontpop(struct termp *p) |
term_fontpop(struct termp *p) |
{ |
{ |
Line 445 term_fontpop(struct termp *p) |
|
Line 387 term_fontpop(struct termp *p) |
|
p->fonti--; |
p->fonti--; |
} |
} |
|
|
|
|
/* |
/* |
* Handle pwords, partial words, which may be either a single word or a |
* Handle pwords, partial words, which may be either a single word or a |
* phrase that cannot be broken down (such as a literal string). This |
* phrase that cannot be broken down (such as a literal string). This |
Line 454 term_fontpop(struct termp *p) |
|
Line 395 term_fontpop(struct termp *p) |
|
void |
void |
term_word(struct termp *p, const char *word) |
term_word(struct termp *p, const char *word) |
{ |
{ |
const char *seq; |
const char nbrsp[2] = { ASCII_NBRSP, 0 }; |
int sz; |
const char *seq, *cp; |
|
int sz, uc; |
size_t ssz; |
size_t ssz; |
enum mandoc_esc esc; |
enum mandoc_esc esc; |
|
|
if ( ! (TERMP_NOSPACE & p->flags)) { |
if ( ! (TERMP_NOSPACE & p->flags)) { |
if ( ! (TERMP_KEEP & p->flags)) { |
if ( ! (TERMP_KEEP & p->flags)) { |
if (TERMP_PREKEEP & p->flags) |
|
p->flags |= TERMP_KEEP; |
|
bufferc(p, ' '); |
bufferc(p, ' '); |
if (TERMP_SENTENCE & p->flags) |
if (TERMP_SENTENCE & p->flags) |
bufferc(p, ' '); |
bufferc(p, ' '); |
} else |
} else |
bufferc(p, ASCII_NBRSP); |
bufferc(p, ASCII_NBRSP); |
} |
} |
|
if (TERMP_PREKEEP & p->flags) |
|
p->flags |= TERMP_KEEP; |
|
|
if ( ! (p->flags & TERMP_NONOSPACE)) |
if ( ! (p->flags & TERMP_NONOSPACE)) |
p->flags &= ~TERMP_NOSPACE; |
p->flags &= ~TERMP_NOSPACE; |
else |
else |
p->flags |= TERMP_NOSPACE; |
p->flags |= TERMP_NOSPACE; |
|
|
p->flags &= ~(TERMP_SENTENCE | TERMP_IGNDELIM); |
p->flags &= ~TERMP_SENTENCE; |
|
|
while ('\0' != *word) { |
while ('\0' != *word) { |
if ((ssz = strcspn(word, "\\")) > 0) |
if ('\\' != *word) { |
|
if (TERMP_SKIPCHAR & p->flags) { |
|
p->flags &= ~TERMP_SKIPCHAR; |
|
word++; |
|
continue; |
|
} |
|
if (TERMP_NBRWORD & p->flags) { |
|
if (' ' == *word) { |
|
encode(p, nbrsp, 1); |
|
word++; |
|
continue; |
|
} |
|
ssz = strcspn(word, "\\ "); |
|
} else |
|
ssz = strcspn(word, "\\"); |
encode(p, word, ssz); |
encode(p, word, ssz); |
|
word += (int)ssz; |
word += (int)ssz; |
|
if ('\\' != *word) |
|
continue; |
continue; |
|
} |
|
|
word++; |
word++; |
esc = mandoc_escape(&word, &seq, &sz); |
esc = mandoc_escape(&word, &seq, &sz); |
if (ESCAPE_ERROR == esc) |
if (ESCAPE_ERROR == esc) |
break; |
continue; |
|
|
switch (esc) { |
switch (esc) { |
case (ESCAPE_NUMBERED): |
case ESCAPE_UNICODE: |
numbered(p, seq, sz); |
uc = mchars_num2uc(seq + 1, sz - 1); |
break; |
break; |
case (ESCAPE_PREDEF): |
case ESCAPE_NUMBERED: |
res(p, seq, sz); |
uc = mchars_num2char(seq, sz); |
|
if (uc < 0) |
|
continue; |
break; |
break; |
case (ESCAPE_SPECIAL): |
case ESCAPE_SPECIAL: |
spec(p, seq, sz); |
if (p->enc == TERMENC_ASCII) { |
break; |
cp = mchars_spec2str(p->symtab, |
case (ESCAPE_FONTBOLD): |
seq, sz, &ssz); |
|
if (cp != NULL) |
|
encode(p, cp, ssz); |
|
} else { |
|
uc = mchars_spec2cp(p->symtab, seq, sz); |
|
if (uc > 0) |
|
encode1(p, uc); |
|
} |
|
continue; |
|
case ESCAPE_FONTBOLD: |
term_fontrepl(p, TERMFONT_BOLD); |
term_fontrepl(p, TERMFONT_BOLD); |
break; |
continue; |
case (ESCAPE_FONTITALIC): |
case ESCAPE_FONTITALIC: |
term_fontrepl(p, TERMFONT_UNDER); |
term_fontrepl(p, TERMFONT_UNDER); |
break; |
continue; |
case (ESCAPE_FONTROMAN): |
case ESCAPE_FONTBI: |
|
term_fontrepl(p, TERMFONT_BI); |
|
continue; |
|
case ESCAPE_FONT: |
|
/* FALLTHROUGH */ |
|
case ESCAPE_FONTROMAN: |
term_fontrepl(p, TERMFONT_NONE); |
term_fontrepl(p, TERMFONT_NONE); |
break; |
continue; |
case (ESCAPE_FONTPREV): |
case ESCAPE_FONTPREV: |
term_fontlast(p); |
term_fontlast(p); |
break; |
continue; |
case (ESCAPE_NOSPACE): |
case ESCAPE_NOSPACE: |
if ('\0' == *word) |
if (TERMP_SKIPCHAR & p->flags) |
|
p->flags &= ~TERMP_SKIPCHAR; |
|
else if ('\0' == *word) |
p->flags |= TERMP_NOSPACE; |
p->flags |= TERMP_NOSPACE; |
break; |
continue; |
|
case ESCAPE_SKIPCHAR: |
|
p->flags |= TERMP_SKIPCHAR; |
|
continue; |
default: |
default: |
break; |
continue; |
} |
} |
|
|
|
/* |
|
* Common handling for Unicode and numbered |
|
* character escape sequences. |
|
*/ |
|
|
|
if (p->enc == TERMENC_ASCII) { |
|
cp = ascii_uc2str(uc); |
|
encode(p, cp, strlen(cp)); |
|
} else { |
|
if ((uc < 0x20 && uc != 0x09) || |
|
(uc > 0x7E && uc < 0xA0)) |
|
uc = 0xFFFD; |
|
encode1(p, uc); |
|
} |
} |
} |
|
p->flags &= ~TERMP_NBRWORD; |
} |
} |
|
|
|
|
static void |
static void |
adjbuf(struct termp *p, size_t sz) |
adjbuf(struct termp *p, size_t sz) |
{ |
{ |
Line 532 adjbuf(struct termp *p, size_t sz) |
|
Line 523 adjbuf(struct termp *p, size_t sz) |
|
while (sz >= p->maxcols) |
while (sz >= p->maxcols) |
p->maxcols <<= 2; |
p->maxcols <<= 2; |
|
|
p->buf = mandoc_realloc(p->buf, sizeof(int) * p->maxcols); |
p->buf = mandoc_reallocarray(p->buf, p->maxcols, sizeof(int)); |
} |
} |
|
|
|
|
static void |
static void |
bufferc(struct termp *p, char c) |
bufferc(struct termp *p, char c) |
{ |
{ |
Line 543 bufferc(struct termp *p, char c) |
|
Line 533 bufferc(struct termp *p, char c) |
|
if (p->col + 1 >= p->maxcols) |
if (p->col + 1 >= p->maxcols) |
adjbuf(p, p->col + 1); |
adjbuf(p, p->col + 1); |
|
|
p->buf[(int)p->col++] = c; |
p->buf[p->col++] = c; |
} |
} |
|
|
|
/* |
|
* See encode(). |
|
* Do this for a single (probably unicode) value. |
|
* Does not check for non-decorated glyphs. |
|
*/ |
|
static void |
|
encode1(struct termp *p, int c) |
|
{ |
|
enum termfont f; |
|
|
|
if (TERMP_SKIPCHAR & p->flags) { |
|
p->flags &= ~TERMP_SKIPCHAR; |
|
return; |
|
} |
|
|
|
if (p->col + 6 >= p->maxcols) |
|
adjbuf(p, p->col + 6); |
|
|
|
f = term_fonttop(p); |
|
|
|
if (TERMFONT_UNDER == f || TERMFONT_BI == f) { |
|
p->buf[p->col++] = '_'; |
|
p->buf[p->col++] = 8; |
|
} |
|
if (TERMFONT_BOLD == f || TERMFONT_BI == f) { |
|
if (ASCII_HYPH == c) |
|
p->buf[p->col++] = '-'; |
|
else |
|
p->buf[p->col++] = c; |
|
p->buf[p->col++] = 8; |
|
} |
|
p->buf[p->col++] = c; |
|
} |
|
|
static void |
static void |
encode(struct termp *p, const char *word, size_t sz) |
encode(struct termp *p, const char *word, size_t sz) |
{ |
{ |
enum termfont f; |
size_t i; |
int i; |
|
|
|
|
if (TERMP_SKIPCHAR & p->flags) { |
|
p->flags &= ~TERMP_SKIPCHAR; |
|
return; |
|
} |
|
|
/* |
/* |
* Encode and buffer a string of characters. If the current |
* Encode and buffer a string of characters. If the current |
* font mode is unset, buffer directly, else encode then buffer |
* font mode is unset, buffer directly, else encode then buffer |
* character by character. |
* character by character. |
*/ |
*/ |
|
|
if (TERMFONT_NONE == (f = term_fonttop(p))) { |
if (TERMFONT_NONE == term_fonttop(p)) { |
if (p->col + sz >= p->maxcols) |
if (p->col + sz >= p->maxcols) |
adjbuf(p, p->col + sz); |
adjbuf(p, p->col + sz); |
for (i = 0; i < (int)sz; i++) |
for (i = 0; i < sz; i++) |
p->buf[(int)p->col++] = word[i]; |
p->buf[p->col++] = word[i]; |
return; |
return; |
} |
} |
|
|
/* Pre-buffer, assuming worst-case. */ |
/* Pre-buffer, assuming worst-case. */ |
|
|
if (p->col + 1 + (sz * 3) >= p->maxcols) |
if (p->col + 1 + (sz * 5) >= p->maxcols) |
adjbuf(p, p->col + 1 + (sz * 3)); |
adjbuf(p, p->col + 1 + (sz * 5)); |
|
|
for (i = 0; i < (int)sz; i++) { |
for (i = 0; i < sz; i++) { |
if ( ! isgraph((u_char)word[i])) { |
if (ASCII_HYPH == word[i] || |
p->buf[(int)p->col++] = word[i]; |
isgraph((unsigned char)word[i])) |
continue; |
encode1(p, word[i]); |
} |
|
|
|
if (TERMFONT_UNDER == f) |
|
p->buf[(int)p->col++] = '_'; |
|
else |
else |
p->buf[(int)p->col++] = word[i]; |
p->buf[p->col++] = word[i]; |
|
|
p->buf[(int)p->col++] = 8; |
|
p->buf[(int)p->col++] = word[i]; |
|
} |
} |
} |
} |
|
|
|
void |
|
term_setwidth(struct termp *p, const char *wstr) |
|
{ |
|
struct roffsu su; |
|
size_t width; |
|
int iop; |
|
|
|
iop = 0; |
|
width = 0; |
|
if (NULL != wstr) { |
|
switch (*wstr) { |
|
case '+': |
|
iop = 1; |
|
wstr++; |
|
break; |
|
case '-': |
|
iop = -1; |
|
wstr++; |
|
break; |
|
default: |
|
break; |
|
} |
|
if (a2roffsu(wstr, &su, SCALE_MAX)) |
|
width = term_hspan(p, &su); |
|
else |
|
iop = 0; |
|
} |
|
(*p->setwidth)(p, iop, width); |
|
} |
|
|
size_t |
size_t |
term_len(const struct termp *p, size_t sz) |
term_len(const struct termp *p, size_t sz) |
{ |
{ |
Line 596 term_len(const struct termp *p, size_t sz) |
|
Line 645 term_len(const struct termp *p, size_t sz) |
|
return((*p->width)(p, ' ') * sz); |
return((*p->width)(p, ' ') * sz); |
} |
} |
|
|
|
static size_t |
|
cond_width(const struct termp *p, int c, int *skip) |
|
{ |
|
|
|
if (*skip) { |
|
(*skip) = 0; |
|
return(0); |
|
} else |
|
return((*p->width)(p, c)); |
|
} |
|
|
size_t |
size_t |
term_strlen(const struct termp *p, const char *cp) |
term_strlen(const struct termp *p, const char *cp) |
{ |
{ |
size_t sz, rsz, i; |
size_t sz, rsz, i; |
int ssz; |
int ssz, skip, uc; |
enum mandoc_esc esc; |
|
const char *seq, *rhs; |
const char *seq, *rhs; |
|
enum mandoc_esc esc; |
|
static const char rej[] = { '\\', ASCII_NBRSP, ASCII_HYPH, |
|
ASCII_BREAK, '\0' }; |
|
|
/* |
/* |
* Account for escaped sequences within string length |
* Account for escaped sequences within string length |
Line 612 term_strlen(const struct termp *p, const char *cp) |
|
Line 673 term_strlen(const struct termp *p, const char *cp) |
|
*/ |
*/ |
|
|
sz = 0; |
sz = 0; |
while ('\0' != *cp) |
skip = 0; |
|
while ('\0' != *cp) { |
|
rsz = strcspn(cp, rej); |
|
for (i = 0; i < rsz; i++) |
|
sz += cond_width(p, *cp++, &skip); |
|
|
switch (*cp) { |
switch (*cp) { |
case ('\\'): |
case '\\': |
++cp; |
cp++; |
esc = mandoc_escape(&cp, &seq, &ssz); |
esc = mandoc_escape(&cp, &seq, &ssz); |
if (ESCAPE_ERROR == esc) |
if (ESCAPE_ERROR == esc) |
return(sz); |
continue; |
|
|
|
rhs = NULL; |
|
|
switch (esc) { |
switch (esc) { |
case (ESCAPE_PREDEF): |
case ESCAPE_UNICODE: |
rhs = mchars_res2str |
uc = mchars_num2uc(seq + 1, ssz - 1); |
(p->symtab, seq, ssz, &rsz); |
|
break; |
break; |
case (ESCAPE_SPECIAL): |
case ESCAPE_NUMBERED: |
rhs = mchars_spec2str |
uc = mchars_num2char(seq, ssz); |
(p->symtab, seq, ssz, &rsz); |
if (uc < 0) |
|
continue; |
if (ssz != 1 || rhs) |
|
break; |
|
|
|
rhs = seq; |
|
rsz = ssz; |
|
break; |
break; |
|
case ESCAPE_SPECIAL: |
|
if (p->enc == TERMENC_ASCII) { |
|
rhs = mchars_spec2str(p->symtab, |
|
seq, ssz, &rsz); |
|
if (rhs != NULL) |
|
break; |
|
} else { |
|
uc = mchars_spec2cp(p->symtab, |
|
seq, ssz); |
|
if (uc > 0) |
|
sz += cond_width(p, uc, &skip); |
|
} |
|
continue; |
|
case ESCAPE_SKIPCHAR: |
|
skip = 1; |
|
continue; |
default: |
default: |
rhs = NULL; |
continue; |
break; |
|
} |
} |
|
|
if (NULL == rhs) |
/* |
|
* Common handling for Unicode and numbered |
|
* character escape sequences. |
|
*/ |
|
|
|
if (rhs == NULL) { |
|
if (p->enc == TERMENC_ASCII) { |
|
rhs = ascii_uc2str(uc); |
|
rsz = strlen(rhs); |
|
} else { |
|
if ((uc < 0x20 && uc != 0x09) || |
|
(uc > 0x7E && uc < 0xA0)) |
|
uc = 0xFFFD; |
|
sz += cond_width(p, uc, &skip); |
|
continue; |
|
} |
|
} |
|
|
|
if (skip) { |
|
skip = 0; |
break; |
break; |
|
} |
|
|
|
/* |
|
* Common handling for all escape sequences |
|
* printing more than one character. |
|
*/ |
|
|
for (i = 0; i < rsz; i++) |
for (i = 0; i < rsz; i++) |
sz += (*p->width)(p, *rhs++); |
sz += (*p->width)(p, *rhs++); |
break; |
break; |
case (ASCII_NBRSP): |
case ASCII_NBRSP: |
sz += (*p->width)(p, ' '); |
sz += cond_width(p, ' ', &skip); |
cp++; |
cp++; |
break; |
break; |
case (ASCII_HYPH): |
case ASCII_HYPH: |
sz += (*p->width)(p, '-'); |
sz += cond_width(p, '-', &skip); |
cp++; |
cp++; |
|
/* FALLTHROUGH */ |
|
case ASCII_BREAK: |
break; |
break; |
default: |
default: |
sz += (*p->width)(p, *cp++); |
|
break; |
break; |
} |
} |
|
} |
|
|
return(sz); |
return(sz); |
} |
} |
|
|
|
|
/* ARGSUSED */ |
|
size_t |
size_t |
term_vspan(const struct termp *p, const struct roffsu *su) |
term_vspan(const struct termp *p, const struct roffsu *su) |
{ |
{ |
double r; |
double r; |
|
|
switch (su->unit) { |
switch (su->unit) { |
case (SCALE_CM): |
case SCALE_CM: |
r = su->scale * 2; |
r = su->scale * 2.0; |
break; |
break; |
case (SCALE_IN): |
case SCALE_IN: |
r = su->scale * 6; |
r = su->scale * 6.0; |
break; |
break; |
case (SCALE_PC): |
case SCALE_PC: |
r = su->scale; |
r = su->scale; |
break; |
break; |
case (SCALE_PT): |
case SCALE_PT: |
r = su->scale / 8; |
r = su->scale / 8.0; |
break; |
break; |
case (SCALE_MM): |
case SCALE_MM: |
r = su->scale / 1000; |
r = su->scale / 1000.0; |
break; |
break; |
case (SCALE_VS): |
case SCALE_VS: |
r = su->scale; |
r = su->scale; |
break; |
break; |
default: |
default: |
r = su->scale - 1; |
r = su->scale - 1.0; |
break; |
break; |
} |
} |
|
|
if (r < 0.0) |
if (r < 0.0) |
r = 0.0; |
r = 0.0; |
return(/* LINTED */(size_t) |
return((size_t)(r + 0.0005)); |
r); |
|
} |
} |
|
|
|
|
size_t |
size_t |
term_hspan(const struct termp *p, const struct roffsu *su) |
term_hspan(const struct termp *p, const struct roffsu *su) |
{ |
{ |
double v; |
double v; |
|
|
v = ((*p->hspan)(p, su)); |
v = (*p->hspan)(p, su); |
if (v < 0.0) |
if (v < 0.0) |
v = 0.0; |
v = 0.0; |
return((size_t) /* LINTED */ |
return((size_t)(v + 0.0005)); |
v); |
|
} |
} |