version 1.237, 2014/12/02 10:08:06 |
version 1.245, 2015/03/06 13:02:43 |
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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) 2010-2014 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2010-2015 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 |
Line 43 term_free(struct termp *p) |
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Line 43 term_free(struct termp *p) |
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{ |
{ |
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free(p->buf); |
free(p->buf); |
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free(p->fontq); |
free(p); |
free(p); |
} |
} |
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Line 100 term_flushln(struct termp *p) |
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Line 101 term_flushln(struct termp *p) |
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size_t j; /* temporary loop index for p->buf */ |
size_t j; /* temporary loop index for p->buf */ |
size_t 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 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. |
Line 113 term_flushln(struct termp *p) |
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Line 113 term_flushln(struct termp *p) |
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* is negative, it gets sign extended. Subtracting that |
* is negative, it gets sign extended. Subtracting that |
* very large size_t effectively adds a small number to dv. |
* very large size_t effectively adds a small number to dv. |
*/ |
*/ |
rmargin = p->rmargin > p->offset ? p->rmargin : p->offset; |
dv = p->rmargin > p->offset ? p->rmargin - p->offset : 0; |
dv = p->rmargin - p->offset; |
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maxvis = (int)dv > p->overstep ? dv - (size_t)p->overstep : 0; |
maxvis = (int)dv > p->overstep ? dv - (size_t)p->overstep : 0; |
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if (p->flags & TERMP_NOBREAK) { |
if (p->flags & TERMP_NOBREAK) { |
Line 192 term_flushln(struct termp *p) |
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Line 191 term_flushln(struct termp *p) |
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(*p->endline)(p); |
(*p->endline)(p); |
p->viscol = 0; |
p->viscol = 0; |
if (TERMP_BRIND & p->flags) { |
if (TERMP_BRIND & p->flags) { |
vbl = rmargin; |
vbl = p->rmargin; |
vend += rmargin - p->offset; |
vend += p->rmargin; |
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vend -= p->offset; |
} else |
} else |
vbl = p->offset; |
vbl = p->offset; |
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Line 273 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) { |
p->overstep = (int)(vis - maxvis + |
p->overstep += (int)(p->offset + vis - p->rmargin + |
p->trailspace * (*p->width)(p, ' ')); |
p->trailspace * (*p->width)(p, ' ')); |
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/* |
/* |
Line 329 term_vspace(struct termp *p) |
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Line 329 term_vspace(struct termp *p) |
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(*p->endline)(p); |
(*p->endline)(p); |
} |
} |
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/* Swap current and previous font; for \fP and .ft P */ |
void |
void |
term_fontlast(struct termp *p) |
term_fontlast(struct termp *p) |
{ |
{ |
Line 339 term_fontlast(struct termp *p) |
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Line 340 term_fontlast(struct termp *p) |
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p->fontq[p->fonti] = f; |
p->fontq[p->fonti] = f; |
} |
} |
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/* Set font, save current, discard previous; for \f, .ft, .B etc. */ |
void |
void |
term_fontrepl(struct termp *p, enum termfont f) |
term_fontrepl(struct termp *p, enum termfont f) |
{ |
{ |
Line 347 term_fontrepl(struct termp *p, enum termfont f) |
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Line 349 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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/* Set font, save previous. */ |
void |
void |
term_fontpush(struct termp *p, enum termfont f) |
term_fontpush(struct termp *p, enum termfont f) |
{ |
{ |
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assert(p->fonti + 1 < 10); |
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p->fontl = p->fontq[p->fonti]; |
p->fontl = p->fontq[p->fonti]; |
p->fontq[++p->fonti] = f; |
if (++p->fonti == p->fontsz) { |
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p->fontsz += 8; |
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p->fontq = mandoc_reallocarray(p->fontq, |
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p->fontsz, sizeof(enum termfont *)); |
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} |
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p->fontq[p->fonti] = f; |
} |
} |
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const void * |
/* Flush to make the saved pointer current again. */ |
term_fontq(struct termp *p) |
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{ |
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return(&p->fontq[p->fonti]); |
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} |
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enum termfont |
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term_fonttop(struct termp *p) |
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{ |
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return(p->fontq[p->fonti]); |
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} |
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void |
void |
term_fontpopq(struct termp *p, const void *key) |
term_fontpopq(struct termp *p, int i) |
{ |
{ |
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while (p->fonti >= 0 && key < (void *)(p->fontq + p->fonti)) |
assert(i >= 0); |
p->fonti--; |
if (p->fonti > i) |
assert(p->fonti >= 0); |
p->fonti = i; |
} |
} |
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/* Pop one font off the stack. */ |
void |
void |
term_fontpop(struct termp *p) |
term_fontpop(struct termp *p) |
{ |
{ |
Line 418 term_word(struct termp *p, const char *word) |
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Line 413 term_word(struct termp *p, const char *word) |
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p->flags |= TERMP_NOSPACE; |
p->flags |= TERMP_NOSPACE; |
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p->flags &= ~(TERMP_SENTENCE | TERMP_NONEWLINE); |
p->flags &= ~(TERMP_SENTENCE | TERMP_NONEWLINE); |
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p->skipvsp = 0; |
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while ('\0' != *word) { |
while ('\0' != *word) { |
if ('\\' != *word) { |
if ('\\' != *word) { |
Line 492 term_word(struct termp *p, const char *word) |
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Line 488 term_word(struct termp *p, const char *word) |
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case ESCAPE_SKIPCHAR: |
case ESCAPE_SKIPCHAR: |
p->flags |= TERMP_SKIPCHAR; |
p->flags |= TERMP_SKIPCHAR; |
continue; |
continue; |
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case ESCAPE_OVERSTRIKE: |
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cp = seq + sz; |
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while (seq < cp) { |
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if (*seq == '\\') { |
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mandoc_escape(&seq, NULL, NULL); |
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continue; |
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} |
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encode1(p, *seq++); |
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if (seq < cp) |
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encode(p, "\b", 1); |
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} |
default: |
default: |
continue; |
continue; |
} |
} |
Line 554 encode1(struct termp *p, int c) |
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Line 561 encode1(struct termp *p, int c) |
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if (p->col + 6 >= p->maxcols) |
if (p->col + 6 >= p->maxcols) |
adjbuf(p, p->col + 6); |
adjbuf(p, p->col + 6); |
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f = term_fonttop(p); |
f = p->fontq[p->fonti]; |
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if (TERMFONT_UNDER == f || TERMFONT_BI == f) { |
if (TERMFONT_UNDER == f || TERMFONT_BI == f) { |
p->buf[p->col++] = '_'; |
p->buf[p->col++] = '_'; |
Line 586 encode(struct termp *p, const char *word, size_t sz) |
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Line 593 encode(struct termp *p, const char *word, size_t sz) |
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* character by character. |
* character by character. |
*/ |
*/ |
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if (TERMFONT_NONE == term_fonttop(p)) { |
if (p->fontq[p->fonti] == TERMFONT_NONE) { |
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 < sz; i++) |
for (i = 0; i < sz; i++) |
Line 713 term_strlen(const struct termp *p, const char *cp) |
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Line 720 term_strlen(const struct termp *p, const char *cp) |
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case ESCAPE_SKIPCHAR: |
case ESCAPE_SKIPCHAR: |
skip = 1; |
skip = 1; |
continue; |
continue; |
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case ESCAPE_OVERSTRIKE: |
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rsz = 0; |
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rhs = seq + ssz; |
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while (seq < rhs) { |
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if (*seq == '\\') { |
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mandoc_escape(&seq, NULL, NULL); |
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continue; |
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} |
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i = (*p->width)(p, *seq++); |
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if (rsz < i) |
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rsz = i; |
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} |
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sz += rsz; |
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continue; |
default: |
default: |
continue; |
continue; |
} |
} |
Line 766 term_strlen(const struct termp *p, const char *cp) |
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Line 787 term_strlen(const struct termp *p, const char *cp) |
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return(sz); |
return(sz); |
} |
} |
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size_t |
int |
term_vspan(const struct termp *p, const struct roffsu *su) |
term_vspan(const struct termp *p, const struct roffsu *su) |
{ |
{ |
double r; |
double r; |
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int ri; |
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switch (su->unit) { |
switch (su->unit) { |
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case SCALE_BU: |
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r = su->scale / 40.0; |
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break; |
case SCALE_CM: |
case SCALE_CM: |
r = su->scale * 2.0; |
r = su->scale * 6.0 / 2.54; |
break; |
break; |
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case SCALE_FS: |
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r = su->scale * 65536.0 / 40.0; |
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break; |
case SCALE_IN: |
case SCALE_IN: |
r = su->scale * 6.0; |
r = su->scale * 6.0; |
break; |
break; |
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case SCALE_MM: |
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r = su->scale * 0.006; |
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break; |
case SCALE_PC: |
case SCALE_PC: |
r = su->scale; |
r = su->scale; |
break; |
break; |
case SCALE_PT: |
case SCALE_PT: |
r = su->scale / 8.0; |
r = su->scale / 12.0; |
break; |
break; |
case SCALE_MM: |
case SCALE_EN: |
r = su->scale / 1000.0; |
/* FALLTHROUGH */ |
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case SCALE_EM: |
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r = su->scale * 0.6; |
break; |
break; |
case SCALE_VS: |
case SCALE_VS: |
r = su->scale; |
r = su->scale; |
break; |
break; |
default: |
default: |
r = su->scale - 1.0; |
abort(); |
break; |
/* NOTREACHED */ |
} |
} |
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ri = r > 0.0 ? r + 0.4995 : r - 0.4995; |
if (r < 0.0) |
return(ri < 66 ? ri : 1); |
r = 0.0; |
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return((size_t)(r + 0.0005)); |
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} |
} |
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size_t |
int |
term_hspan(const struct termp *p, const struct roffsu *su) |
term_hspan(const struct termp *p, const struct roffsu *su) |
{ |
{ |
double v; |
double v; |
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v = (*p->hspan)(p, su); |
v = (*p->hspan)(p, su); |
if (v < 0.0) |
return(v > 0.0 ? v + 0.0005 : v - 0.0005); |
v = 0.0; |
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return((size_t)(v + 0.0005)); |
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} |
} |