version 1.120, 2009/10/31 06:10:58 |
version 1.124, 2009/11/07 14:14:16 |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
*/ |
*/ |
#include <assert.h> |
#include <assert.h> |
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#include <ctype.h> |
#include <stdio.h> |
#include <stdio.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
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static struct termp *term_alloc(enum termenc); |
static struct termp *term_alloc(enum termenc); |
static void term_free(struct termp *); |
static void term_free(struct termp *); |
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static void do_escaped(struct termp *, const char **); |
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static void do_special(struct termp *, |
static void do_special(struct termp *, |
const char *, size_t); |
const char *, size_t); |
static void do_reserved(struct termp *, |
static void do_reserved(struct termp *, |
Line 229 term_flushln(struct termp *p) |
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Line 229 term_flushln(struct termp *p) |
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for ( ; i < (int)p->col; i++) { |
for ( ; i < (int)p->col; i++) { |
if (' ' == p->buf[i]) |
if (' ' == p->buf[i]) |
break; |
break; |
putchar(p->buf[i]); |
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/* The unit sep. is a non-breaking space. */ |
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if (31 == p->buf[i]) |
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putchar(' '); |
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else |
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putchar(p->buf[i]); |
} |
} |
vis += vsz; |
vis += vsz; |
} |
} |
Line 361 do_reserved(struct termp *p, const char *word, size_t |
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Line 366 do_reserved(struct termp *p, const char *word, size_t |
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/* |
/* |
* Handle an escape sequence: determine its length and pass it to the |
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* escape-symbol look table. Note that we assume mdoc(3) has validated |
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* the escape sequence (we assert upon badly-formed escape sequences). |
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*/ |
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static void |
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do_escaped(struct termp *p, const char **word) |
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{ |
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int j, type; |
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const char *wp; |
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wp = *word; |
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type = 1; |
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if (0 == *(++wp)) { |
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*word = wp; |
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return; |
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} |
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if ('(' == *wp) { |
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wp++; |
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if (0 == *wp || 0 == *(wp + 1)) { |
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*word = 0 == *wp ? wp : wp + 1; |
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return; |
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} |
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do_special(p, wp, 2); |
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*word = ++wp; |
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return; |
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} else if ('*' == *wp) { |
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if (0 == *(++wp)) { |
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*word = wp; |
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return; |
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} |
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switch (*wp) { |
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case ('('): |
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wp++; |
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if (0 == *wp || 0 == *(wp + 1)) { |
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*word = 0 == *wp ? wp : wp + 1; |
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return; |
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} |
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do_reserved(p, wp, 2); |
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*word = ++wp; |
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return; |
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case ('['): |
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type = 0; |
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break; |
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default: |
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do_reserved(p, wp, 1); |
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*word = wp; |
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return; |
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} |
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} else if ('f' == *wp) { |
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if (0 == *(++wp)) { |
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*word = wp; |
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return; |
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} |
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switch (*wp) { |
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case ('B'): |
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p->bold++; |
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break; |
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case ('I'): |
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p->under++; |
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break; |
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case ('P'): |
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/* FALLTHROUGH */ |
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case ('R'): |
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p->bold = p->under = 0; |
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break; |
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default: |
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break; |
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} |
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*word = wp; |
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return; |
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} else if ('[' != *wp) { |
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do_special(p, wp, 1); |
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*word = wp; |
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return; |
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} |
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wp++; |
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for (j = 0; *wp && ']' != *wp; wp++, j++) |
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/* Loop... */ ; |
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if (0 == *wp) { |
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*word = wp; |
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return; |
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} |
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if (type) |
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do_special(p, wp - j, (size_t)j); |
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else |
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do_reserved(p, wp - j, (size_t)j); |
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*word = wp; |
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} |
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/* |
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* 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 |
* handles word styling. |
* handles word styling. |
Line 472 do_escaped(struct termp *p, const char **word) |
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Line 373 do_escaped(struct termp *p, const char **word) |
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void |
void |
term_word(struct termp *p, const char *word) |
term_word(struct termp *p, const char *word) |
{ |
{ |
const char *sv; |
const char *sv, *seq; |
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int sz, meta; |
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size_t ssz; |
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enum roffdeco deco; |
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sv = word; |
sv = word; |
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if (word[0] && 0 == word[1]) |
if (word[0] && '\0' == word[1]) |
switch (word[0]) { |
switch (word[0]) { |
case('.'): |
case('.'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
Line 508 term_word(struct termp *p, const char *word) |
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Line 412 term_word(struct termp *p, const char *word) |
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if ( ! (p->flags & TERMP_NONOSPACE)) |
if ( ! (p->flags & TERMP_NONOSPACE)) |
p->flags &= ~TERMP_NOSPACE; |
p->flags &= ~TERMP_NOSPACE; |
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for ( ; *word; word++) |
/* |
if ('\\' != *word) |
* FIXME: it's faster to put the metafont conditional here, |
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* because most of the time we're not a metafont and can use |
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* strcspn and fwrite. |
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*/ |
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while (*word) { |
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if ('\\' != *word) { |
encode(p, *word); |
encode(p, *word); |
else |
word++; |
do_escaped(p, &word); |
continue; |
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} |
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seq = ++word; |
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sz = a2roffdeco(&deco, &seq, &ssz); |
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switch (deco) { |
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case (DECO_RESERVED): |
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do_reserved(p, seq, ssz); |
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break; |
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case (DECO_SPECIAL): |
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do_special(p, seq, ssz); |
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break; |
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case (DECO_BOLD): |
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p->metamask = p->metafont; |
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p->metafont |= METAF_BOLD; |
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break; |
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case (DECO_ITALIC): |
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p->metamask = p->metafont; |
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p->metafont |= METAF_UNDER; |
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break; |
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case (DECO_ROMAN): |
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p->metamask = p->metafont; |
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p->metafont &= ~METAF_UNDER; |
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p->metafont &= ~METAF_BOLD; |
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break; |
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case (DECO_PREVIOUS): |
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meta = p->metamask; |
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p->metamask = p->metafont; |
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p->metafont = meta; |
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break; |
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default: |
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break; |
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} |
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word += sz; |
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} |
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if (sv[0] && 0 == sv[1]) |
if (sv[0] && 0 == sv[1]) |
switch (sv[0]) { |
switch (sv[0]) { |
case('('): |
case('('): |
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encode(struct termp *p, char c) |
encode(struct termp *p, char c) |
{ |
{ |
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if (' ' != c) { |
if (isgraph((u_char)c)) { |
if (p->under) { |
if (p->under || METAF_UNDER & p->metafont) { |
buffer(p, '_'); |
buffer(p, '_'); |
buffer(p, 8); |
buffer(p, 8); |
} |
} |
if (p->bold) { |
if (p->bold || METAF_BOLD & p->metafont) { |
buffer(p, c); |
buffer(p, c); |
buffer(p, 8); |
buffer(p, 8); |
} |
} |