version 1.203, 2012/05/31 22:29:13 |
version 1.210, 2013/08/21 21:20:40 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2010, 2011, 2012 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2010, 2011, 2012, 2013 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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#include "main.h" |
#include "main.h" |
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static size_t cond_width(const struct termp *, int, int *); |
static size_t cond_width(const struct termp *, int, int *); |
static void adjbuf(struct termp *p, int); |
static void adjbuf(struct termp *p, size_t); |
static void bufferc(struct termp *, char); |
static void bufferc(struct termp *, char); |
static void encode(struct termp *, const char *, size_t); |
static void encode(struct termp *, const char *, size_t); |
static void encode1(struct termp *, int); |
static void encode1(struct termp *, int); |
Line 105 term_end(struct termp *p) |
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Line 105 term_end(struct termp *p) |
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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 mmax; /* used in calculating bp */ |
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Line 144 term_flushln(struct termp *p) |
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Line 145 term_flushln(struct termp *p) |
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* 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. |
*/ |
*/ |
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ntab = 0; |
while (i < p->col && '\t' == p->buf[i]) { |
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 159 term_flushln(struct termp *p) |
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Line 162 term_flushln(struct termp *p) |
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*/ |
*/ |
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for (j = i, jhy = 0; j < 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 192 term_flushln(struct termp *p) |
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Line 195 term_flushln(struct termp *p) |
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} else |
} else |
vbl = p->offset; |
vbl = p->offset; |
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/* 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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/* Remove the p->overstep width. */ |
/* Remove the p->overstep width. */ |
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bp += (size_t)p->overstep; |
bp += (size_t)p->overstep; |
Line 208 term_flushln(struct termp *p) |
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Line 216 term_flushln(struct termp *p) |
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j = i; |
j = i; |
while (' ' == p->buf[i]) |
while (' ' == 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 265 term_flushln(struct termp *p) |
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Line 273 term_flushln(struct termp *p) |
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p->overstep = (int)(vis - maxvis + (*p->width)(p, ' ')); |
p->overstep = (int)(vis - maxvis + (*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. |
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* If we are one step before the margin, temporarily |
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* 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->overstep < 0) |
p->overstep = 0; |
p->overstep = 0; |
return; |
return; |
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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); |
} |
} |
Line 403 term_word(struct termp *p, const char *word) |
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Line 406 term_word(struct termp *p, const char *word) |
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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) |
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p->flags |= TERMP_KEEP; |
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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); |
} |
} |
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if (TERMP_PREKEEP & p->flags) |
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p->flags |= TERMP_KEEP; |
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if ( ! (p->flags & TERMP_NONOSPACE)) |
if ( ! (p->flags & TERMP_NONOSPACE)) |
p->flags &= ~TERMP_NOSPACE; |
p->flags &= ~TERMP_NOSPACE; |
Line 477 term_word(struct termp *p, const char *word) |
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Line 480 term_word(struct termp *p, const char *word) |
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case (ESCAPE_FONTITALIC): |
case (ESCAPE_FONTITALIC): |
term_fontrepl(p, TERMFONT_UNDER); |
term_fontrepl(p, TERMFONT_UNDER); |
break; |
break; |
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case (ESCAPE_FONTBI): |
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term_fontrepl(p, TERMFONT_BI); |
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break; |
case (ESCAPE_FONT): |
case (ESCAPE_FONT): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (ESCAPE_FONTROMAN): |
case (ESCAPE_FONTROMAN): |
Line 501 term_word(struct termp *p, const char *word) |
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Line 507 term_word(struct termp *p, const char *word) |
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} |
} |
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static void |
static void |
adjbuf(struct termp *p, int sz) |
adjbuf(struct termp *p, size_t sz) |
{ |
{ |
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if (0 == p->maxcols) |
if (0 == p->maxcols) |
Line 509 adjbuf(struct termp *p, int sz) |
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Line 515 adjbuf(struct termp *p, int sz) |
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while (sz >= p->maxcols) |
while (sz >= p->maxcols) |
p->maxcols <<= 2; |
p->maxcols <<= 2; |
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p->buf = mandoc_realloc |
p->buf = mandoc_realloc(p->buf, sizeof(int) * p->maxcols); |
(p->buf, sizeof(int) * (size_t)p->maxcols); |
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} |
} |
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static void |
static void |
Line 538 encode1(struct termp *p, int c) |
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Line 543 encode1(struct termp *p, int c) |
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return; |
return; |
} |
} |
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if (p->col + 4 >= p->maxcols) |
if (p->col + 6 >= p->maxcols) |
adjbuf(p, p->col + 4); |
adjbuf(p, p->col + 6); |
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f = term_fonttop(p); |
f = term_fonttop(p); |
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if (TERMFONT_NONE == f) { |
if (TERMFONT_UNDER == f || TERMFONT_BI == f) { |
p->buf[p->col++] = c; |
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return; |
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} else if (TERMFONT_UNDER == f) { |
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p->buf[p->col++] = '_'; |
p->buf[p->col++] = '_'; |
} else |
p->buf[p->col++] = 8; |
p->buf[p->col++] = c; |
} |
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if (TERMFONT_BOLD == f || TERMFONT_BI == f) { |
p->buf[p->col++] = 8; |
if (ASCII_HYPH == c) |
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p->buf[p->col++] = '-'; |
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else |
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p->buf[p->col++] = c; |
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p->buf[p->col++] = 8; |
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} |
p->buf[p->col++] = c; |
p->buf[p->col++] = c; |
} |
} |
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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, len; |
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if (TERMP_SKIPCHAR & p->flags) { |
if (TERMP_SKIPCHAR & p->flags) { |
p->flags &= ~TERMP_SKIPCHAR; |
p->flags &= ~TERMP_SKIPCHAR; |
return; |
return; |
} |
} |
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/* LINTED */ |
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len = sz; |
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/* |
/* |
* 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. |
*/ |
*/ |
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if (TERMFONT_NONE == (f = term_fonttop(p))) { |
if (TERMFONT_NONE == term_fonttop(p)) { |
if (p->col + len >= p->maxcols) |
if (p->col + sz >= p->maxcols) |
adjbuf(p, p->col + len); |
adjbuf(p, p->col + sz); |
for (i = 0; i < len; i++) |
for (i = 0; i < sz; i++) |
p->buf[p->col++] = word[i]; |
p->buf[p->col++] = word[i]; |
return; |
return; |
} |
} |
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/* Pre-buffer, assuming worst-case. */ |
/* Pre-buffer, assuming worst-case. */ |
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if (p->col + 1 + (len * 3) >= p->maxcols) |
if (p->col + 1 + (sz * 5) >= p->maxcols) |
adjbuf(p, p->col + 1 + (len * 3)); |
adjbuf(p, p->col + 1 + (sz * 5)); |
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for (i = 0; i < len; i++) { |
for (i = 0; i < sz; i++) { |
if (ASCII_HYPH != word[i] && |
if (ASCII_HYPH == word[i] || |
! isgraph((unsigned char)word[i])) { |
isgraph((unsigned char)word[i])) |
p->buf[p->col++] = word[i]; |
encode1(p, word[i]); |
continue; |
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} |
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if (TERMFONT_UNDER == f) |
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p->buf[p->col++] = '_'; |
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else if (ASCII_HYPH == word[i]) |
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p->buf[p->col++] = '-'; |
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else |
else |
p->buf[p->col++] = word[i]; |
p->buf[p->col++] = word[i]; |
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p->buf[p->col++] = 8; |
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p->buf[p->col++] = word[i]; |
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} |
} |
} |
} |
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