-/* $Id: term.c,v 1.232 2014/10/28 18:49:33 schwarze Exp $ */
+/* $Id: term.c,v 1.244 2015/01/31 00:12:41 schwarze Exp $ */
/*
* 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
* purpose with or without fee is hereby granted, provided that the above
{
free(p->buf);
+ free(p->fontq);
free(p);
}
size_t j; /* temporary loop index for p->buf */
size_t jhy; /* last hyph before overflow w/r/t j */
size_t maxvis; /* output position of visible boundary */
- size_t mmax; /* used in calculating bp */
/*
* First, establish the maximum columns of "visible" content.
* is negative, it gets sign extended. Subtracting that
* very large size_t effectively adds a small number to dv.
*/
- assert (p->rmargin >= p->offset);
- dv = p->rmargin - p->offset;
+ dv = p->rmargin > p->offset ? p->rmargin - p->offset : 0;
maxvis = (int)dv > p->overstep ? dv - (size_t)p->overstep : 0;
- dv = p->maxrmargin - p->offset;
- mmax = (int)dv > p->overstep ? dv - (size_t)p->overstep : 0;
- bp = TERMP_NOBREAK & p->flags ? mmax : maxvis;
+ if (p->flags & TERMP_NOBREAK) {
+ dv = p->maxrmargin > p->offset ?
+ p->maxrmargin - p->offset : 0;
+ bp = (int)dv > p->overstep ?
+ dv - (size_t)p->overstep : 0;
+ } else
+ bp = maxvis;
/*
* Calculate the required amount of padding.
p->viscol = 0;
if (TERMP_BRIND & p->flags) {
vbl = p->rmargin;
- vend += p->rmargin - p->offset;
+ vend += p->rmargin;
+ vend -= p->offset;
} else
vbl = p->offset;
* If there was trailing white space, it was not printed;
* so reset the cursor position accordingly.
*/
- if (vis)
+ if (vis > vbl)
vis -= vbl;
+ else
+ vis = 0;
p->col = 0;
p->overstep = 0;
}
if (TERMP_HANG & p->flags) {
- p->overstep = (int)(vis - maxvis +
+ p->overstep += (int)(p->offset + vis - p->rmargin +
p->trailspace * (*p->width)(p, ' '));
/*
(*p->endline)(p);
}
+/* Swap current and previous font; for \fP and .ft P */
void
term_fontlast(struct termp *p)
{
p->fontq[p->fonti] = f;
}
+/* Set font, save current, discard previous; for \f, .ft, .B etc. */
void
term_fontrepl(struct termp *p, enum termfont f)
{
p->fontq[p->fonti] = f;
}
+/* Set font, save previous. */
void
term_fontpush(struct termp *p, enum termfont f)
{
- assert(p->fonti + 1 < 10);
p->fontl = p->fontq[p->fonti];
- p->fontq[++p->fonti] = f;
-}
-
-const void *
-term_fontq(struct termp *p)
-{
-
- return(&p->fontq[p->fonti]);
-}
-
-enum termfont
-term_fonttop(struct termp *p)
-{
-
- return(p->fontq[p->fonti]);
+ if (++p->fonti == p->fontsz) {
+ p->fontsz += 8;
+ p->fontq = mandoc_reallocarray(p->fontq,
+ p->fontsz, sizeof(enum termfont *));
+ }
+ p->fontq[p->fonti] = f;
}
+/* Flush to make the saved pointer current again. */
void
-term_fontpopq(struct termp *p, const void *key)
+term_fontpopq(struct termp *p, int i)
{
- while (p->fonti >= 0 && key < (void *)(p->fontq + p->fonti))
- p->fonti--;
- assert(p->fonti >= 0);
+ assert(i >= 0);
+ if (p->fonti > i)
+ p->fonti = i;
}
+/* Pop one font off the stack. */
void
term_fontpop(struct termp *p)
{
{
const char nbrsp[2] = { ASCII_NBRSP, 0 };
const char *seq, *cp;
- char c;
int sz, uc;
size_t ssz;
enum mandoc_esc esc;
else
p->flags |= TERMP_NOSPACE;
- p->flags &= ~TERMP_SENTENCE;
+ p->flags &= ~(TERMP_SENTENCE | TERMP_NONEWLINE);
while ('\0' != *word) {
if ('\\' != *word) {
switch (esc) {
case ESCAPE_UNICODE:
uc = mchars_num2uc(seq + 1, sz - 1);
- if (p->enc == TERMENC_ASCII) {
- cp = ascii_uc2str(uc);
- encode(p, cp, strlen(cp));
- } else
- encode1(p, uc);
break;
case ESCAPE_NUMBERED:
- c = mchars_num2char(seq, sz);
- if ('\0' != c)
- encode(p, &c, 1);
+ uc = mchars_num2char(seq, sz);
+ if (uc < 0)
+ continue;
break;
case ESCAPE_SPECIAL:
if (p->enc == TERMENC_ASCII) {
if (uc > 0)
encode1(p, uc);
}
- break;
+ continue;
case ESCAPE_FONTBOLD:
term_fontrepl(p, TERMFONT_BOLD);
- break;
+ continue;
case ESCAPE_FONTITALIC:
term_fontrepl(p, TERMFONT_UNDER);
- break;
+ continue;
case ESCAPE_FONTBI:
term_fontrepl(p, TERMFONT_BI);
- break;
+ continue;
case ESCAPE_FONT:
/* FALLTHROUGH */
case ESCAPE_FONTROMAN:
term_fontrepl(p, TERMFONT_NONE);
- break;
+ continue;
case ESCAPE_FONTPREV:
term_fontlast(p);
- break;
+ continue;
case ESCAPE_NOSPACE:
if (TERMP_SKIPCHAR & p->flags)
p->flags &= ~TERMP_SKIPCHAR;
else if ('\0' == *word)
- p->flags |= TERMP_NOSPACE;
- break;
+ p->flags |= (TERMP_NOSPACE | TERMP_NONEWLINE);
+ continue;
case ESCAPE_SKIPCHAR:
p->flags |= TERMP_SKIPCHAR;
- break;
+ continue;
+ case ESCAPE_OVERSTRIKE:
+ cp = seq + sz;
+ while (seq < cp) {
+ if (*seq == '\\') {
+ mandoc_escape(&seq, NULL, NULL);
+ continue;
+ }
+ encode1(p, *seq++);
+ if (seq < cp)
+ encode(p, "\b", 1);
+ }
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;
if (p->col + 6 >= p->maxcols)
adjbuf(p, p->col + 6);
- f = term_fonttop(p);
+ f = p->fontq[p->fonti];
if (TERMFONT_UNDER == f || TERMFONT_BI == f) {
p->buf[p->col++] = '_';
* character by character.
*/
- if (TERMFONT_NONE == term_fonttop(p)) {
+ if (p->fontq[p->fonti] == TERMFONT_NONE) {
if (p->col + sz >= p->maxcols)
adjbuf(p, p->col + sz);
for (i = 0; i < sz; i++)
term_strlen(const struct termp *p, const char *cp)
{
size_t sz, rsz, i;
- int ssz, skip, c;
+ int ssz, skip, uc;
const char *seq, *rhs;
enum mandoc_esc esc;
static const char rej[] = { '\\', ASCII_NBRSP, ASCII_HYPH,
switch (esc) {
case ESCAPE_UNICODE:
- c = mchars_num2uc(seq + 1, sz - 1);
- if (p->enc == TERMENC_ASCII) {
- rhs = ascii_uc2str(c);
- rsz = strlen(rhs);
- } else
- sz += cond_width(p, c, &skip);
+ uc = mchars_num2uc(seq + 1, ssz - 1);
break;
case ESCAPE_NUMBERED:
- c = mchars_num2char(seq, ssz);
- if ('\0' != c)
- sz += cond_width(p, c, &skip);
+ uc = mchars_num2char(seq, ssz);
+ if (uc < 0)
+ continue;
break;
case ESCAPE_SPECIAL:
- if (p->enc == TERMENC_ASCII)
+ if (p->enc == TERMENC_ASCII) {
rhs = mchars_spec2str(p->symtab,
seq, ssz, &rsz);
- else {
- c = mchars_spec2cp(p->symtab,
+ if (rhs != NULL)
+ break;
+ } else {
+ uc = mchars_spec2cp(p->symtab,
seq, ssz);
- if (c > 0)
- sz += cond_width(p, c, &skip);
+ if (uc > 0)
+ sz += cond_width(p, uc, &skip);
}
- break;
+ continue;
case ESCAPE_SKIPCHAR:
skip = 1;
- break;
+ continue;
+ case ESCAPE_OVERSTRIKE:
+ rsz = 0;
+ rhs = seq + ssz;
+ while (seq < rhs) {
+ if (*seq == '\\') {
+ mandoc_escape(&seq, NULL, NULL);
+ continue;
+ }
+ i = (*p->width)(p, *seq++);
+ if (rsz < i)
+ rsz = i;
+ }
+ sz += rsz;
+ continue;
default:
- break;
+ continue;
}
- if (NULL == rhs)
- break;
+ /*
+ * 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;
}
+ /*
+ * Common handling for all escape sequences
+ * printing more than one character.
+ */
+
for (i = 0; i < rsz; i++)
sz += (*p->width)(p, *rhs++);
break;
return(sz);
}
-size_t
+int
term_vspan(const struct termp *p, const struct roffsu *su)
{
double r;
+ int ri;
switch (su->unit) {
+ case SCALE_BU:
+ r = su->scale / 40.0;
+ break;
case SCALE_CM:
- r = su->scale * 2.0;
+ r = su->scale * 6.0 / 2.54;
+ break;
+ case SCALE_FS:
+ r = su->scale * 65536.0 / 40.0;
break;
case SCALE_IN:
r = su->scale * 6.0;
break;
+ case SCALE_MM:
+ r = su->scale * 0.006;
+ break;
case SCALE_PC:
r = su->scale;
break;
case SCALE_PT:
- r = su->scale / 8.0;
+ r = su->scale / 12.0;
break;
- case SCALE_MM:
- r = su->scale / 1000.0;
+ case SCALE_EN:
+ /* FALLTHROUGH */
+ case SCALE_EM:
+ r = su->scale * 0.6;
break;
case SCALE_VS:
r = su->scale;
break;
default:
- r = su->scale - 1.0;
- break;
+ abort();
+ /* NOTREACHED */
}
-
- if (r < 0.0)
- r = 0.0;
- return((size_t)(r + 0.0005));
+ ri = r > 0.0 ? r + 0.4995 : r - 0.4995;
+ return(ri < 66 ? ri : 1);
}
-size_t
+int
term_hspan(const struct termp *p, const struct roffsu *su)
{
double v;
v = (*p->hspan)(p, su);
- if (v < 0.0)
- v = 0.0;
- return((size_t)(v + 0.0005));
+ return(v > 0.0 ? v + 0.0005 : v - 0.0005);
}
git.ckatri.com / mandoc.git / blobdiff