version 1.108, 2009/10/19 15:18:30 |
version 1.117, 2009/10/30 18:43:24 |
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#include <stdio.h> |
#include <stdio.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
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#include <time.h> |
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#include "chars.h" |
#include "chars.h" |
#include "out.h" |
#include "out.h" |
Line 76 term_alloc(enum termenc enc) |
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Line 77 term_alloc(enum termenc enc) |
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{ |
{ |
struct termp *p; |
struct termp *p; |
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if (NULL == (p = malloc(sizeof(struct termp)))) |
p = calloc(1, sizeof(struct termp)); |
return(NULL); |
if (NULL == p) { |
bzero(p, sizeof(struct termp)); |
fprintf(stderr, "memory exhausted\n"); |
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exit(EXIT_FAILURE); |
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} |
p->maxrmargin = 78; |
p->maxrmargin = 78; |
p->enc = enc; |
p->enc = enc; |
return(p); |
return(p); |
Line 119 term_alloc(enum termenc enc) |
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Line 122 term_alloc(enum termenc enc) |
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* If TERMP_NOBREAK is specified and the line overruns the right |
* If TERMP_NOBREAK is specified and the line overruns the right |
* margin, it will break and pad-right to the right margin after |
* margin, it will break and pad-right to the right margin after |
* writing. If maxrmargin is violated, it will break and continue |
* writing. If maxrmargin is violated, it will break and continue |
* writing from the right-margin, which will lead to the above |
* writing from the right-margin, which will lead to the above scenario |
* scenario upon exit. |
* upon exit. Otherwise, the line will break at the right margin. |
* |
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* Otherwise, the line will break at the right margin. Extremely long |
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* lines will cause the system to emit a warning (TODO: hyphenate, if |
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* possible). |
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*/ |
*/ |
void |
void |
term_flushln(struct termp *p) |
term_flushln(struct termp *p) |
{ |
{ |
int i, j; |
int i; /* current input position in p->buf */ |
size_t vbl, vsz, vis, maxvis, mmax, bp, os; |
size_t vis; /* current visual position on output */ |
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size_t vbl; /* number of blanks to prepend to output */ |
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size_t vsz; /* visual characters to write to output */ |
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size_t bp; /* visual right border position */ |
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int j; /* temporary loop index */ |
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size_t maxvis, mmax; |
static int overstep = 0; |
static int overstep = 0; |
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/* |
/* |
* First, establish the maximum columns of "visible" content. |
* First, establish the maximum columns of "visible" content. |
* This is usually the difference between the right-margin and |
* This is usually the difference between the right-margin and |
* an indentation, but can be, for tagged lists or columns, a |
* an indentation, but can be, for tagged lists or columns, a |
* small set of values. |
* small set of values. |
*/ |
*/ |
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assert(p->offset < p->rmargin); |
assert(p->offset < p->rmargin); |
assert((int)(p->rmargin - p->offset) - overstep > 0); |
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/* Save the overstep. */ |
maxvis = (int)(p->rmargin - p->offset) - overstep < 0 ? |
os = (size_t)overstep; |
0 : p->rmargin - p->offset - overstep; |
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mmax = (int)(p->maxrmargin - p->offset) - overstep < 0 ? |
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0 : p->maxrmargin - p->offset - overstep; |
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maxvis = /* LINTED */ |
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p->rmargin - p->offset - overstep; |
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mmax = /* LINTED */ |
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p->maxrmargin - p->offset - 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; |
vis = 0; |
overstep = 0; |
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/* |
/* |
* If in the standard case (left-justified), then begin with our |
* If in the standard case (left-justified), then begin with our |
Line 208 term_flushln(struct termp *p) |
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Line 213 term_flushln(struct termp *p) |
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vis = 0; |
vis = 0; |
} |
} |
/* Remove the overstep width. */ |
/* Remove the overstep width. */ |
bp += os; |
bp += (int)/* LINTED */ |
os = 0; |
overstep; |
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overstep = 0; |
} else { |
} else { |
for (j = 0; j < (int)vbl; j++) |
for (j = 0; j < (int)vbl; j++) |
putchar(' '); |
putchar(' '); |
Line 226 term_flushln(struct termp *p) |
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Line 232 term_flushln(struct termp *p) |
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} |
} |
vis += vsz; |
vis += vsz; |
} |
} |
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p->col = 0; |
p->col = 0; |
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overstep = 0; |
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if ( ! (TERMP_NOBREAK & p->flags)) { |
if ( ! (TERMP_NOBREAK & p->flags)) { |
putchar('\n'); |
putchar('\n'); |
Line 548 encode(struct termp *p, char c) |
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Line 556 encode(struct termp *p, char c) |
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{ |
{ |
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if (' ' != c) { |
if (' ' != c) { |
if (p->bold) { |
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buffer(p, c); |
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buffer(p, 8); |
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} |
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if (p->under) { |
if (p->under) { |
buffer(p, '_'); |
buffer(p, '_'); |
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buffer(p, 8); |
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} |
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if (p->bold) { |
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buffer(p, c); |
buffer(p, 8); |
buffer(p, 8); |
} |
} |
} |
} |