version 1.123, 2009/11/06 10:31:32 |
version 1.166, 2010/07/26 22:26:05 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv> |
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* Copyright (c) 2010 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. |
*/ |
*/ |
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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#include <sys/types.h> |
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#include <assert.h> |
#include <assert.h> |
#include <ctype.h> |
#include <ctype.h> |
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#include <stdint.h> |
#include <stdio.h> |
#include <stdio.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
#include <time.h> |
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#include "mandoc.h" |
#include "chars.h" |
#include "chars.h" |
#include "out.h" |
#include "out.h" |
#include "term.h" |
#include "term.h" |
#include "man.h" |
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#include "mdoc.h" |
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#include "main.h" |
#include "main.h" |
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/* FIXME: accomodate non-breaking, non-collapsing white-space. */ |
static void spec(struct termp *, enum roffdeco, |
/* FIXME: accomodate non-breaking, collapsing white-space. */ |
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static struct termp *term_alloc(enum termenc); |
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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 *, |
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const char *, size_t); |
const char *, size_t); |
static void do_reserved(struct termp *, |
static void res(struct termp *, const char *, size_t); |
const char *, size_t); |
static void bufferc(struct termp *, char); |
static void buffer(struct termp *, char); |
static void adjbuf(struct termp *p, size_t); |
static void encode(struct termp *, char); |
static void encode(struct termp *, const char *, size_t); |
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void * |
void |
ascii_alloc(void) |
term_free(struct termp *p) |
{ |
{ |
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return(term_alloc(TERMENC_ASCII)); |
if (p->buf) |
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free(p->buf); |
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if (p->symtab) |
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chars_free(p->symtab); |
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free(p); |
} |
} |
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void |
void |
terminal_free(void *arg) |
term_begin(struct termp *p, term_margin head, |
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term_margin foot, const void *arg) |
{ |
{ |
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term_free((struct termp *)arg); |
p->headf = head; |
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p->footf = foot; |
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p->argf = arg; |
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(*p->begin)(p); |
} |
} |
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static void |
void |
term_free(struct termp *p) |
term_end(struct termp *p) |
{ |
{ |
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if (p->buf) |
(*p->end)(p); |
free(p->buf); |
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if (p->symtab) |
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chars_free(p->symtab); |
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free(p); |
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} |
} |
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static struct termp * |
struct termp * |
term_alloc(enum termenc enc) |
term_alloc(enum termenc enc) |
{ |
{ |
struct termp *p; |
struct termp *p; |
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p = calloc(1, sizeof(struct termp)); |
p = calloc(1, sizeof(struct termp)); |
if (NULL == p) { |
if (NULL == p) { |
perror(NULL); |
perror(NULL); |
exit(EXIT_FAILURE); |
exit(EXIT_FAILURE); |
} |
} |
p->maxrmargin = 78; |
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p->enc = enc; |
p->enc = enc; |
return(p); |
return(p); |
} |
} |
Line 92 term_alloc(enum termenc enc) |
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Line 95 term_alloc(enum termenc enc) |
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* Flush a line of text. A "line" is loosely defined as being something |
* Flush a line of text. A "line" is loosely defined as being something |
* that should be followed by a newline, regardless of whether it's |
* that should be followed by a newline, regardless of whether it's |
* broken apart by newlines getting there. A line can also be a |
* broken apart by newlines getting there. A line can also be a |
* fragment of a columnar list. |
* fragment of a columnar list (`Bl -tag' or `Bl -column'), which does |
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* not have a trailing newline. |
* |
* |
* Specifically, a line is whatever's in p->buf of length p->col, which |
* The following flags may be specified: |
* is zeroed after this function returns. |
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* |
* |
* The usage of termp:flags is as follows: |
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* |
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* - TERMP_NOLPAD: when beginning to write the line, don't left-pad the |
* - TERMP_NOLPAD: when beginning to write the line, don't left-pad the |
* offset value. This is useful when doing columnar lists where the |
* offset value. This is useful when doing columnar lists where the |
* prior column has right-padded. |
* prior column has right-padded. |
Line 131 term_flushln(struct termp *p) |
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Line 132 term_flushln(struct termp *p) |
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int i; /* current input position in p->buf */ |
int i; /* current input position in p->buf */ |
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 vsz; /* visual characters to write to 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 */ |
int j; /* temporary loop index */ |
int j; /* temporary loop index for p->buf */ |
size_t maxvis, mmax; |
int jhy; /* last hyph before overflow w/r/t j */ |
static int overstep = 0; |
size_t maxvis; /* output position of visible boundary */ |
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size_t mmax; /* used in calculating bp */ |
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/* |
/* |
* First, establish the maximum columns of "visible" content. |
* First, establish the maximum columns of "visible" content. |
Line 146 term_flushln(struct termp *p) |
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Line 148 term_flushln(struct termp *p) |
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assert(p->offset < p->rmargin); |
assert(p->offset < p->rmargin); |
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maxvis = (int)(p->rmargin - p->offset) - overstep < 0 ? |
maxvis = (int)(p->rmargin - p->offset) - p->overstep < 0 ? |
/* LINTED */ |
/* LINTED */ |
0 : p->rmargin - p->offset - overstep; |
0 : p->rmargin - p->offset - p->overstep; |
mmax = (int)(p->maxrmargin - p->offset) - overstep < 0 ? |
mmax = (int)(p->maxrmargin - p->offset) - p->overstep < 0 ? |
/* LINTED */ |
/* LINTED */ |
0 : p->maxrmargin - p->offset - overstep; |
0 : p->maxrmargin - p->offset - p->overstep; |
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bp = TERMP_NOBREAK & p->flags ? mmax : maxvis; |
bp = TERMP_NOBREAK & p->flags ? mmax : maxvis; |
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/* |
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* FIXME: if bp is zero, we still output the first word before |
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* breaking the line. |
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*/ |
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vis = 0; |
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/* |
/* |
* If in the standard case (left-justified), then begin with our |
* Indent the first line of a paragraph. |
* indentation, otherwise (columns, etc.) just start spitting |
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* out text. |
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*/ |
*/ |
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vbl = p->flags & TERMP_NOLPAD ? 0 : p->offset; |
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if ( ! (p->flags & TERMP_NOLPAD)) |
vis = vend = i = 0; |
/* LINTED */ |
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for (j = 0; j < (int)p->offset; j++) |
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putchar(' '); |
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for (i = 0; i < (int)p->col; i++) { |
while (i < (int)p->col) { |
/* |
/* |
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* Handle literal tab characters: collapse all |
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* subsequent tabs into a single huge set of spaces. |
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*/ |
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for (j = i; j < (int)p->col; j++) { |
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if ('\t' != p->buf[j]) |
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break; |
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vend = (vis / p->tabwidth + 1) * p->tabwidth; |
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vbl += vend - vis; |
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vis = vend; |
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} |
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/* |
* Count up visible word characters. Control sequences |
* Count up visible word characters. Control sequences |
* (starting with the CSI) aren't counted. A space |
* (starting with the CSI) aren't counted. A space |
* generates a non-printing word, which is valid (the |
* generates a non-printing word, which is valid (the |
Line 182 term_flushln(struct termp *p) |
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Line 185 term_flushln(struct termp *p) |
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*/ |
*/ |
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/* LINTED */ |
/* LINTED */ |
for (j = i, vsz = 0; j < (int)p->col; j++) { |
for (jhy = 0; j < (int)p->col; j++) { |
if (j && ' ' == p->buf[j]) |
if ((j && ' ' == p->buf[j]) || '\t' == p->buf[j]) |
break; |
break; |
else if (8 == p->buf[j]) |
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vsz--; |
/* Back over the the last printed character. */ |
else |
if (8 == p->buf[j]) { |
vsz++; |
assert(j); |
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vend -= (*p->width)(p, p->buf[j - 1]); |
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continue; |
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} |
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/* Regular word. */ |
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/* Break at the hyphen point if we overrun. */ |
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if (vend > vis && vend < bp && |
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ASCII_HYPH == p->buf[j]) |
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jhy = j; |
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vend += (*p->width)(p, p->buf[j]); |
} |
} |
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/* |
/* |
* Choose the number of blanks to prepend: no blank at the |
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* beginning of a line, one between words -- but do not |
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* actually write them yet. |
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*/ |
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vbl = (size_t)(0 == vis ? 0 : 1); |
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/* |
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* Find out whether we would exceed the right margin. |
* Find out whether we would exceed the right margin. |
* If so, break to the next line. (TODO: hyphenate) |
* If so, break to the next line. |
* Otherwise, write the chosen number of blanks now. |
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*/ |
*/ |
if (vis && vis + vbl + vsz > bp) { |
if (vend > bp && 0 == jhy && vis > 0) { |
putchar('\n'); |
vend -= vis; |
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(*p->endline)(p); |
if (TERMP_NOBREAK & p->flags) { |
if (TERMP_NOBREAK & p->flags) { |
for (j = 0; j < (int)p->rmargin; j++) |
p->viscol = p->rmargin; |
putchar(' '); |
(*p->advance)(p, p->rmargin); |
vis = p->rmargin - p->offset; |
vend += p->rmargin - p->offset; |
} else { |
} else { |
for (j = 0; j < (int)p->offset; j++) |
p->viscol = 0; |
putchar(' '); |
vbl = p->offset; |
vis = 0; |
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} |
} |
/* Remove the overstep width. */ |
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/* Remove the p->overstep width. */ |
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bp += (int)/* LINTED */ |
bp += (int)/* LINTED */ |
overstep; |
p->overstep; |
overstep = 0; |
p->overstep = 0; |
} else { |
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for (j = 0; j < (int)vbl; j++) |
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putchar(' '); |
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vis += vbl; |
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} |
} |
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/* |
/* |
* Finally, write out the word. |
* Skip leading tabs, they were handled above. |
*/ |
*/ |
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while (i < (int)p->col && '\t' == p->buf[i]) |
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i++; |
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/* Write out the [remaining] word. */ |
for ( ; i < (int)p->col; i++) { |
for ( ; i < (int)p->col; i++) { |
if (' ' == p->buf[i]) |
if (vend > bp && jhy > 0 && i > jhy) |
break; |
break; |
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if ('\t' == p->buf[i]) |
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break; |
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if (' ' == p->buf[i]) { |
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j = i; |
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while (' ' == p->buf[i]) |
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i++; |
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vbl += (i - j) * (*p->width)(p, ' '); |
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break; |
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} |
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if (ASCII_NBRSP == p->buf[i]) { |
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vbl += (*p->width)(p, ' '); |
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continue; |
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} |
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/* The unit sep. is a non-breaking space. */ |
/* |
if (31 == p->buf[i]) |
* Now we definitely know there will be |
putchar(' '); |
* printable characters to output, |
else |
* so write preceding white space now. |
putchar(p->buf[i]); |
*/ |
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if (vbl) { |
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(*p->advance)(p, vbl); |
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p->viscol += vbl; |
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vbl = 0; |
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} |
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if (ASCII_HYPH == p->buf[i]) { |
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(*p->letter)(p, '-'); |
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p->viscol += (*p->width)(p, '-'); |
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} else { |
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(*p->letter)(p, p->buf[i]); |
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p->viscol += (*p->width)(p, p->buf[i]); |
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} |
} |
} |
vis += vsz; |
vend += vbl; |
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vis = vend; |
} |
} |
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p->col = 0; |
p->col = 0; |
overstep = 0; |
p->overstep = 0; |
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if ( ! (TERMP_NOBREAK & p->flags)) { |
if ( ! (TERMP_NOBREAK & p->flags)) { |
putchar('\n'); |
p->viscol = 0; |
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(*p->endline)(p); |
return; |
return; |
} |
} |
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if (TERMP_HANG & p->flags) { |
if (TERMP_HANG & p->flags) { |
/* We need one blank after the tag. */ |
/* We need one blank after the tag. */ |
overstep = /* LINTED */ |
p->overstep = /* LINTED */ |
vis - maxvis + 1; |
vis - maxvis + (*p->width)(p, ' '); |
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/* |
/* |
* Behave exactly the same way as groff: |
* Behave exactly the same way as groff: |
Line 263 term_flushln(struct termp *p) |
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Line 299 term_flushln(struct termp *p) |
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* move it one step LEFT and flag the rest of the line |
* move it one step LEFT and flag the rest of the line |
* to be longer. |
* to be longer. |
*/ |
*/ |
if (overstep >= -1) { |
if (p->overstep >= -1) { |
assert((int)maxvis + overstep >= 0); |
assert((int)maxvis + p->overstep >= 0); |
/* LINTED */ |
/* LINTED */ |
maxvis += overstep; |
maxvis += p->overstep; |
} else |
} else |
overstep = 0; |
p->overstep = 0; |
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} else if (TERMP_DANGLE & p->flags) |
} else if (TERMP_DANGLE & p->flags) |
return; |
return; |
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/* Right-pad. */ |
/* Right-pad. */ |
if (maxvis > vis + /* LINTED */ |
if (maxvis > vis + /* LINTED */ |
((TERMP_TWOSPACE & p->flags) ? 1 : 0)) |
((TERMP_TWOSPACE & p->flags) ? |
for ( ; vis < maxvis; vis++) |
(*p->width)(p, ' ') : 0)) { |
putchar(' '); |
p->viscol += maxvis - vis; |
else { /* ...or newline break. */ |
(*p->advance)(p, maxvis - vis); |
putchar('\n'); |
vis += (maxvis - vis); |
for (i = 0; i < (int)p->rmargin; i++) |
} else { /* ...or newline break. */ |
putchar(' '); |
(*p->endline)(p); |
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p->viscol = p->rmargin; |
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(*p->advance)(p, p->rmargin); |
} |
} |
} |
} |
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Line 296 term_newln(struct termp *p) |
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Line 334 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) { |
if (0 == p->col && 0 == p->viscol) { |
p->flags &= ~TERMP_NOLPAD; |
p->flags &= ~TERMP_NOLPAD; |
return; |
return; |
} |
} |
Line 316 term_vspace(struct termp *p) |
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Line 354 term_vspace(struct termp *p) |
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{ |
{ |
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term_newln(p); |
term_newln(p); |
putchar('\n'); |
p->viscol = 0; |
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(*p->endline)(p); |
} |
} |
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static void |
static void |
do_special(struct termp *p, const char *word, size_t len) |
spec(struct termp *p, enum roffdeco d, const char *word, size_t len) |
{ |
{ |
const char *rhs; |
const char *rhs; |
size_t sz; |
size_t sz; |
int i; |
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rhs = chars_a2ascii(p->symtab, word, len, &sz); |
rhs = chars_spec2str(p->symtab, word, len, &sz); |
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if (rhs) |
if (NULL == rhs) { |
encode(p, rhs, sz); |
#if 0 |
else if (DECO_SSPECIAL == d) |
fputs("Unknown special character: ", stderr); |
encode(p, word, len); |
for (i = 0; i < (int)len; i++) |
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fputc(word[i], stderr); |
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fputc('\n', stderr); |
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#endif |
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return; |
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} |
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for (i = 0; i < (int)sz; i++) |
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encode(p, rhs[i]); |
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} |
} |
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static void |
static void |
do_reserved(struct termp *p, const char *word, size_t len) |
res(struct termp *p, const char *word, size_t len) |
{ |
{ |
const char *rhs; |
const char *rhs; |
size_t sz; |
size_t sz; |
int i; |
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rhs = chars_a2res(p->symtab, word, len, &sz); |
rhs = chars_res2str(p->symtab, word, len, &sz); |
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if (rhs) |
if (NULL == rhs) { |
encode(p, rhs, sz); |
#if 0 |
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fputs("Unknown reserved word: ", stderr); |
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for (i = 0; i < (int)len; i++) |
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fputc(word[i], stderr); |
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fputc('\n', stderr); |
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#endif |
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return; |
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} |
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for (i = 0; i < (int)sz; i++) |
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encode(p, rhs[i]); |
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} |
} |
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/* |
void |
* Handle an escape sequence: determine its length and pass it to the |
term_fontlast(struct termp *p) |
* 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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{ |
{ |
int j, type, sv, t, lim; |
enum termfont f; |
const char *wp; |
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wp = *word; |
f = p->fontl; |
type = 1; |
p->fontl = p->fontq[p->fonti]; |
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p->fontq[p->fonti] = f; |
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} |
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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) { |
void |
wp++; |
term_fontrepl(struct termp *p, enum termfont f) |
if ('\0' == *wp || '\0' == *(wp + 1)) { |
{ |
*word = '\0' == *wp ? wp : wp + 1; |
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return; |
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} |
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do_special(p, wp, 2); |
p->fontl = p->fontq[p->fonti]; |
*word = ++wp; |
p->fontq[p->fonti] = f; |
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) { |
void |
case ('('): |
term_fontpush(struct termp *p, enum termfont f) |
wp++; |
{ |
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); |
assert(p->fonti + 1 < 10); |
*word = ++wp; |
p->fontl = p->fontq[p->fonti]; |
return; |
p->fontq[++p->fonti] = f; |
case ('['): |
} |
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 ('s' == *wp) { |
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/* This closely follows mandoc_special(). */ |
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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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t = 0; |
const void * |
lim = 1; |
term_fontq(struct termp *p) |
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{ |
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if (*wp == '\'') { |
return(&p->fontq[p->fonti]); |
lim = 0; |
} |
t = 1; |
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++wp; |
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} else if (*wp == '[') { |
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lim = 0; |
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t = 2; |
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++wp; |
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} else if (*wp == '(') { |
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lim = 2; |
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t = 3; |
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++wp; |
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} |
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if (*wp == '+' || *wp == '-') |
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++wp; |
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if (*wp == '\'') { |
enum termfont |
if (t) { |
term_fonttop(struct termp *p) |
*word = wp; |
{ |
return; |
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} |
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lim = 0; |
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t = 1; |
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++wp; |
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} else if (*wp == '[') { |
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if (t) { |
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*word = wp; |
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return; |
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} |
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lim = 0; |
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t = 2; |
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++wp; |
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} else if (*wp == '(') { |
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if (t) { |
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*word = wp; |
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return; |
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} |
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lim = 2; |
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t = 3; |
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++wp; |
|
} |
|
|
|
if ( ! isdigit((u_char)*wp)) { |
return(p->fontq[p->fonti]); |
*word = --wp; |
} |
return; |
|
} |
|
|
|
for (j = 0; isdigit((u_char)*wp); j++) { |
|
if (lim && j >= lim) |
|
break; |
|
++wp; |
|
} |
|
|
|
if (t && t < 3) { |
void |
if (1 == t && *wp != '\'') { |
term_fontpopq(struct termp *p, const void *key) |
*word = --wp; |
{ |
return; |
|
} |
|
if (2 == t && *wp != ']') { |
|
*word = --wp; |
|
return; |
|
} |
|
++wp; |
|
} |
|
*word = --wp; |
|
return; |
|
|
|
} else if ('f' == *wp) { |
while (p->fonti >= 0 && key != &p->fontq[p->fonti]) |
if ('\0' == *(++wp)) { |
p->fonti--; |
*word = wp; |
assert(p->fonti >= 0); |
return; |
} |
} |
|
|
|
switch (*wp) { |
|
case ('3'): |
|
/* FALLTHROUGH */ |
|
case ('B'): |
|
p->metamask = p->metafont; |
|
p->metafont |= METAF_BOLD; |
|
break; |
|
case ('2'): |
|
/* FALLTHROUGH */ |
|
case ('I'): |
|
p->metamask = p->metafont; |
|
p->metafont |= METAF_UNDER; |
|
break; |
|
case ('P'): |
|
sv = p->metamask; |
|
p->metamask = p->metafont; |
|
p->metafont = sv; |
|
break; |
|
case ('1'): |
|
/* FALLTHROUGH */ |
|
case ('R'): |
|
p->metamask = p->metafont; |
|
p->metafont &= ~METAF_UNDER; |
|
p->metafont &= ~METAF_BOLD; |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
*word = wp; |
void |
return; |
term_fontpop(struct termp *p) |
|
{ |
|
|
} else if ('[' != *wp) { |
assert(p->fonti); |
do_special(p, wp, 1); |
p->fonti--; |
*word = wp; |
|
return; |
|
} |
|
|
|
wp++; |
|
for (j = 0; *wp && ']' != *wp; wp++, j++) |
|
/* Loop... */ ; |
|
|
|
if ('\0' == *wp) { |
|
*word = wp; |
|
return; |
|
} |
|
|
|
if (type) |
|
do_special(p, wp - j, (size_t)j); |
|
else |
|
do_reserved(p, wp - j, (size_t)j); |
|
*word = wp; |
|
} |
} |
|
|
|
|
Line 569 do_escaped(struct termp *p, const char **word) |
|
Line 458 do_escaped(struct termp *p, const char **word) |
|
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; |
|
int sz; |
|
size_t ssz; |
|
enum roffdeco deco; |
|
|
sv = word; |
sv = word; |
|
|
Line 590 term_word(struct termp *p, const char *word) |
|
Line 482 term_word(struct termp *p, const char *word) |
|
case(')'): |
case(')'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case(']'): |
case(']'): |
/* FALLTHROUGH */ |
|
case('}'): |
|
if ( ! (TERMP_IGNDELIM & p->flags)) |
if ( ! (TERMP_IGNDELIM & p->flags)) |
p->flags |= TERMP_NOSPACE; |
p->flags |= TERMP_NOSPACE; |
break; |
break; |
Line 599 term_word(struct termp *p, const char *word) |
|
Line 489 term_word(struct termp *p, const char *word) |
|
break; |
break; |
} |
} |
|
|
if ( ! (TERMP_NOSPACE & p->flags)) |
if ( ! (TERMP_NOSPACE & p->flags)) { |
buffer(p, ' '); |
if ( ! (TERMP_KEEP & p->flags)) { |
|
if (TERMP_PREKEEP & p->flags) |
|
p->flags |= TERMP_KEEP; |
|
bufferc(p, ' '); |
|
if (TERMP_SENTENCE & p->flags) |
|
bufferc(p, ' '); |
|
} else |
|
bufferc(p, ASCII_NBRSP); |
|
} |
|
|
if ( ! (p->flags & TERMP_NONOSPACE)) |
if ( ! (p->flags & TERMP_NONOSPACE)) |
p->flags &= ~TERMP_NOSPACE; |
p->flags &= ~TERMP_NOSPACE; |
|
else |
|
p->flags |= TERMP_NOSPACE; |
|
|
for ( ; *word; word++) |
p->flags &= ~TERMP_SENTENCE; |
|
|
|
while (*word) { |
|
if ((ssz = strcspn(word, "\\")) > 0) |
|
encode(p, word, ssz); |
|
|
|
word += ssz; |
if ('\\' != *word) |
if ('\\' != *word) |
encode(p, *word); |
continue; |
else |
|
do_escaped(p, &word); |
|
|
|
if (sv[0] && 0 == sv[1]) |
seq = ++word; |
|
sz = a2roffdeco(&deco, &seq, &ssz); |
|
|
|
switch (deco) { |
|
case (DECO_RESERVED): |
|
res(p, seq, ssz); |
|
break; |
|
case (DECO_SPECIAL): |
|
/* FALLTHROUGH */ |
|
case (DECO_SSPECIAL): |
|
spec(p, deco, seq, ssz); |
|
break; |
|
case (DECO_BOLD): |
|
term_fontrepl(p, TERMFONT_BOLD); |
|
break; |
|
case (DECO_ITALIC): |
|
term_fontrepl(p, TERMFONT_UNDER); |
|
break; |
|
case (DECO_ROMAN): |
|
term_fontrepl(p, TERMFONT_NONE); |
|
break; |
|
case (DECO_PREVIOUS): |
|
term_fontlast(p); |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
word += sz; |
|
if (DECO_NOSPACE == deco && '\0' == *word) |
|
p->flags |= TERMP_NOSPACE; |
|
} |
|
|
|
/* |
|
* Note that we don't process the pipe: the parser sees it as |
|
* punctuation, but we don't in terms of typography. |
|
*/ |
|
if (sv[0] && '\0' == sv[1]) |
switch (sv[0]) { |
switch (sv[0]) { |
case('('): |
case('('): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case('['): |
case('['): |
/* FALLTHROUGH */ |
|
case('{'): |
|
p->flags |= TERMP_NOSPACE; |
p->flags |= TERMP_NOSPACE; |
break; |
break; |
default: |
default: |
Line 626 term_word(struct termp *p, const char *word) |
|
Line 565 term_word(struct termp *p, const char *word) |
|
} |
} |
|
|
|
|
/* |
|
* Insert a single character into the line-buffer. If the buffer's |
|
* space is exceeded, then allocate more space by doubling the buffer |
|
* size. |
|
*/ |
|
static void |
static void |
buffer(struct termp *p, char c) |
adjbuf(struct termp *p, size_t sz) |
{ |
{ |
size_t s; |
|
|
|
if (p->col + 1 >= p->maxcols) { |
if (0 == p->maxcols) |
if (0 == p->maxcols) |
p->maxcols = 1024; |
p->maxcols = 256; |
while (sz >= p->maxcols) |
s = p->maxcols * 2; |
p->maxcols <<= 2; |
p->buf = realloc(p->buf, s); |
|
if (NULL == p->buf) { |
p->buf = realloc(p->buf, p->maxcols); |
perror(NULL); |
if (NULL == p->buf) { |
exit(EXIT_FAILURE); |
perror(NULL); |
} |
exit(EXIT_FAILURE); |
p->maxcols = s; |
|
} |
} |
p->buf[(int)(p->col)++] = c; |
|
} |
} |
|
|
|
|
static void |
static void |
encode(struct termp *p, char c) |
bufferc(struct termp *p, char c) |
{ |
{ |
|
|
if (isgraph((u_char)c)) { |
if (p->col + 1 >= p->maxcols) |
if (p->under || METAF_UNDER & p->metafont) { |
adjbuf(p, p->col + 1); |
buffer(p, '_'); |
|
buffer(p, 8); |
p->buf[(int)p->col++] = c; |
|
} |
|
|
|
|
|
static void |
|
encode(struct termp *p, const char *word, size_t sz) |
|
{ |
|
enum termfont f; |
|
int i; |
|
|
|
/* |
|
* Encode and buffer a string of characters. If the current |
|
* font mode is unset, buffer directly, else encode then buffer |
|
* character by character. |
|
*/ |
|
|
|
if (TERMFONT_NONE == (f = term_fonttop(p))) { |
|
if (p->col + sz >= p->maxcols) |
|
adjbuf(p, p->col + sz); |
|
memcpy(&p->buf[(int)p->col], word, sz); |
|
p->col += sz; |
|
return; |
|
} |
|
|
|
/* Pre-buffer, assuming worst-case. */ |
|
|
|
if (p->col + 1 + (sz * 3) >= p->maxcols) |
|
adjbuf(p, p->col + 1 + (sz * 3)); |
|
|
|
for (i = 0; i < (int)sz; i++) { |
|
if ( ! isgraph((u_char)word[i])) { |
|
p->buf[(int)p->col++] = word[i]; |
|
continue; |
} |
} |
if (p->bold || METAF_BOLD & p->metafont) { |
|
buffer(p, c); |
if (TERMFONT_UNDER == f) |
buffer(p, 8); |
p->buf[(int)p->col++] = '_'; |
} |
else |
|
p->buf[(int)p->col++] = word[i]; |
|
|
|
p->buf[(int)p->col++] = 8; |
|
p->buf[(int)p->col++] = word[i]; |
} |
} |
buffer(p, c); |
|
} |
} |
|
|
|
|
size_t |
size_t |
term_vspan(const struct roffsu *su) |
term_len(const struct termp *p, size_t sz) |
{ |
{ |
|
|
|
return((*p->width)(p, ' ') * sz); |
|
} |
|
|
|
|
|
size_t |
|
term_strlen(const struct termp *p, const char *cp) |
|
{ |
|
size_t sz; |
|
|
|
for (sz = 0; *cp; cp++) |
|
sz += (*p->width)(p, *cp); |
|
|
|
return(sz); |
|
} |
|
|
|
|
|
/* ARGSUSED */ |
|
size_t |
|
term_vspan(const struct termp *p, const struct roffsu *su) |
|
{ |
double r; |
double r; |
|
|
switch (su->unit) { |
switch (su->unit) { |
Line 706 term_vspan(const struct roffsu *su) |
|
Line 693 term_vspan(const struct roffsu *su) |
|
|
|
|
|
size_t |
size_t |
term_hspan(const struct roffsu *su) |
term_hspan(const struct termp *p, const struct roffsu *su) |
{ |
{ |
double r; |
double v; |
|
|
/* XXX: CM, IN, and PT are approximations. */ |
v = ((*p->hspan)(p, su)); |
|
if (v < 0.0) |
switch (su->unit) { |
v = 0.0; |
case (SCALE_CM): |
return((size_t) /* LINTED */ |
r = 4 * su->scale; |
v); |
break; |
|
case (SCALE_IN): |
|
/* XXX: this is an approximation. */ |
|
r = 10 * su->scale; |
|
break; |
|
case (SCALE_PC): |
|
r = (10 * su->scale) / 6; |
|
break; |
|
case (SCALE_PT): |
|
r = (10 * su->scale) / 72; |
|
break; |
|
case (SCALE_MM): |
|
r = su->scale / 1000; /* FIXME: double-check. */ |
|
break; |
|
case (SCALE_VS): |
|
r = su->scale * 2 - 1; /* FIXME: double-check. */ |
|
break; |
|
default: |
|
r = su->scale; |
|
break; |
|
} |
|
|
|
if (r < 0.0) |
|
r = 0.0; |
|
return((size_t)/* LINTED */ |
|
r); |
|
} |
} |
|
|
|
|