version 1.135, 2010/05/16 01:35:37 |
version 1.146, 2010/06/08 15:00:17 |
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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" |
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#include "mdoc.h" |
#include "mdoc.h" |
#include "main.h" |
#include "main.h" |
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static struct termp *term_alloc(enum termenc, size_t); |
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static void term_free(struct termp *); |
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static void spec(struct termp *, const char *, size_t); |
static void spec(struct termp *, const char *, size_t); |
static void res(struct termp *, const char *, size_t); |
static void res(struct termp *, const char *, size_t); |
static void buffera(struct termp *, const char *, size_t); |
static void buffera(struct termp *, const char *, size_t); |
Line 44 static void adjbuf(struct termp *p, size_t); |
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Line 43 static void adjbuf(struct termp *p, size_t); |
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static void encode(struct termp *, const char *, size_t); |
static void encode(struct termp *, const char *, size_t); |
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void * |
void |
ascii_alloc(size_t width) |
term_free(struct termp *p) |
{ |
{ |
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return(term_alloc(TERMENC_ASCII, width)); |
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, size_t width) |
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); |
} |
} |
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p->tabwidth = 5; |
p->enc = enc; |
p->enc = enc; |
/* Enforce some lower boundary. */ |
p->defrmargin = 78; |
if (width < 60) |
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width = 60; |
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p->defrmargin = width - 2; |
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return(p); |
return(p); |
} |
} |
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Line 133 term_flushln(struct termp *p) |
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Line 135 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 */ |
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int jhy; /* last hyphen before line overflow */ |
size_t maxvis, mmax; |
size_t maxvis, mmax; |
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/* |
/* |
Line 156 term_flushln(struct termp *p) |
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Line 159 term_flushln(struct termp *p) |
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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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* Indent the first line of a paragraph. |
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*/ |
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vbl = p->flags & TERMP_NOLPAD ? 0 : p->offset; |
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/* |
/* |
* FIXME: if bp is zero, we still output the first word before |
* FIXME: if bp is zero, we still output the first word before |
* breaking the line. |
* breaking the line. |
*/ |
*/ |
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vis = 0; |
vis = vend = i = 0; |
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while (i < (int)p->col) { |
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/* |
/* |
* If in the standard case (left-justified), then begin with our |
* Handle literal tab characters. |
* indentation, otherwise (columns, etc.) just start spitting |
*/ |
* out text. |
for (j = i; j < (int)p->col; j++) { |
*/ |
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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if ( ! (p->flags & TERMP_NOLPAD)) |
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/* 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++) { |
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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 |
Line 183 term_flushln(struct termp *p) |
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Line 191 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; |
if (8 == p->buf[j]) |
if (8 != p->buf[j]) { |
vsz--; |
if (vend > vis && vend < bp && |
else |
ASCII_HYPH == p->buf[j]) |
vsz++; |
jhy = j; |
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vend++; |
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} else |
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vend--; |
} |
} |
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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. Otherwise, write the chosen |
* If so, break to the next line. |
* number of blanks. |
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*/ |
*/ |
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if (vend > bp && 0 == jhy && vis > 0) { |
if (vis && vis + vbl + vsz > bp) { |
vend -= vis; |
putchar('\n'); |
(*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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} |
} |
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/* Remove the p->overstep width. */ |
/* Remove the p->overstep width. */ |
Line 223 term_flushln(struct termp *p) |
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Line 224 term_flushln(struct termp *p) |
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bp += (int)/* LINTED */ |
bp += (int)/* LINTED */ |
p->overstep; |
p->overstep; |
p->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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/* |
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* Skip leading tabs, they were handled above. |
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*/ |
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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. */ |
/* 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; |
else if (ASCII_NBRSP == p->buf[i]) |
if ('\t' == p->buf[i]) |
putchar(' '); |
break; |
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if (' ' == p->buf[i]) { |
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while (' ' == p->buf[i]) { |
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vbl++; |
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i++; |
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} |
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break; |
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} |
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if (ASCII_NBRSP == p->buf[i]) { |
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vbl++; |
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continue; |
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} |
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/* |
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* Now we definitely know there will be |
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* printable characters to output, |
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* so write preceding white space now. |
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*/ |
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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, '-'); |
else |
else |
putchar(p->buf[i]); |
(*p->letter)(p, p->buf[i]); |
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vis += vsz; |
p->viscol += 1; |
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} |
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vend += vbl; |
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vis = vend; |
} |
} |
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p->col = 0; |
p->col = 0; |
p->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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Line 276 term_flushln(struct termp *p) |
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Line 308 term_flushln(struct termp *p) |
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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) ? 1 : 0)) { |
for ( ; vis < maxvis; vis++) |
p->viscol += maxvis - vis; |
putchar(' '); |
(*p->advance)(p, maxvis - vis); |
else { /* ...or newline break. */ |
vis += (maxvis - vis); |
putchar('\n'); |
} else { /* ...or newline break. */ |
for (i = 0; i < (int)p->rmargin; i++) |
(*p->endline)(p); |
putchar(' '); |
p->viscol = p->rmargin; |
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(*p->advance)(p, p->rmargin); |
} |
} |
} |
} |
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Line 297 term_newln(struct termp *p) |
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Line 330 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 317 term_vspace(struct termp *p) |
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Line 350 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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Line 569 encode(struct termp *p, const char *word, size_t sz) |
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Line 603 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 == (f = term_fonttop(p))) { |
if (TERMTYPE_PS == p->type) { |
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buffera(p, word, sz); |
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return; |
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} else if (TERMFONT_NONE == (f = term_fonttop(p))) { |
buffera(p, word, sz); |
buffera(p, word, sz); |
return; |
return; |
} |
} |