version 1.132, 2010/05/07 04:50:44 |
version 1.136, 2010/05/17 02:03:49 |
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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); |
static struct termp *term_alloc(enum termenc, size_t); |
static void term_free(struct termp *); |
static void term_free(struct termp *); |
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); |
Line 45 static void encode(struct termp *, const char *, si |
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Line 45 static void encode(struct termp *, const char *, si |
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void * |
void * |
ascii_alloc(void) |
ascii_alloc(size_t width) |
{ |
{ |
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return(term_alloc(TERMENC_ASCII)); |
return(term_alloc(TERMENC_ASCII, width)); |
} |
} |
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Line 74 term_free(struct termp *p) |
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Line 74 term_free(struct termp *p) |
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static struct termp * |
static struct termp * |
term_alloc(enum termenc enc) |
term_alloc(enum termenc enc, size_t width) |
{ |
{ |
struct termp *p; |
struct termp *p; |
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Line 84 term_alloc(enum termenc enc) |
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Line 84 term_alloc(enum termenc enc) |
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exit(EXIT_FAILURE); |
exit(EXIT_FAILURE); |
} |
} |
p->enc = enc; |
p->enc = enc; |
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/* Enforce some lower boundary. */ |
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if (width < 60) |
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width = 60; |
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p->defrmargin = width - 2; |
return(p); |
return(p); |
} |
} |
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Line 129 term_flushln(struct termp *p) |
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Line 133 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 */ |
size_t maxvis, mmax; |
size_t maxvis, mmax; |
Line 152 term_flushln(struct termp *p) |
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Line 156 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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/* |
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* If in the standard case (left-justified), then begin with our |
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* indentation, otherwise (columns, etc.) just start spitting |
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* out text. |
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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 179 term_flushln(struct termp *p) |
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Line 177 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 (j = i; j < (int)p->col; j++) { |
if (j && ' ' == p->buf[j]) |
if (j && ' ' == p->buf[j]) |
break; |
break; |
if (8 == p->buf[j]) |
if (8 == p->buf[j]) |
vsz--; |
vend--; |
else |
else |
vsz++; |
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 && vis > 0) { |
if (vis && vis + vbl + vsz > bp) { |
vend -= vis; |
putchar('\n'); |
putchar('\n'); |
if (TERMP_NOBREAK & p->flags) { |
if (TERMP_NOBREAK & p->flags) { |
for (j = 0; j < (int)p->rmargin; j++) |
for (j = 0; j < (int)p->rmargin; j++) |
putchar(' '); |
putchar(' '); |
vis = p->rmargin - p->offset; |
vend += p->rmargin - p->offset; |
} else { |
} else { |
for (j = 0; j < (int)p->offset; j++) |
vbl = p->offset; |
putchar(' '); |
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vis = 0; |
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} |
} |
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/* Remove the p->overstep width. */ |
/* Remove the p->overstep width. */ |
Line 219 term_flushln(struct termp *p) |
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Line 206 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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/* 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 (' ' == 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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} |
break; |
break; |
else if (31 == p->buf[i]) |
} |
putchar(' '); |
if (ASCII_NBRSP == p->buf[i]) { |
else |
vbl++; |
putchar(p->buf[i]); |
continue; |
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} |
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vis += vsz; |
/* |
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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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for (j = 0; j < (int)vbl; j++) |
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putchar(' '); |
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vbl = 0; |
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} |
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putchar(p->buf[i]); |
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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; |
Line 445 term_word(struct termp *p, const char *word) |
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Line 446 term_word(struct termp *p, const char *word) |
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break; |
break; |
} |
} |
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if ( ! (TERMP_NOSPACE & p->flags)) |
if ( ! (TERMP_NOSPACE & p->flags)) { |
bufferc(p, ' '); |
bufferc(p, ' '); |
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if (TERMP_SENTENCE & p->flags) |
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bufferc(p, ' '); |
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} |
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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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p->flags &= ~TERMP_SENTENCE; |
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/* FIXME: use strcspn. */ |
/* FIXME: use strcspn. */ |
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