version 1.101, 2009/09/17 07:41:28 |
version 1.119, 2009/10/30 18:53:09 |
|
|
* 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> |
#include <err.h> |
|
#include <stdio.h> |
#include <stdio.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
|
#include <time.h> |
|
|
#include "chars.h" |
#include "chars.h" |
|
#include "out.h" |
#include "term.h" |
#include "term.h" |
#include "man.h" |
#include "man.h" |
#include "mdoc.h" |
#include "mdoc.h" |
|
#include "main.h" |
|
|
extern void man_run(struct termp *, |
/* FIXME: accomodate non-breaking, non-collapsing white-space. */ |
const struct man *); |
/* FIXME: accomodate non-breaking, collapsing white-space. */ |
extern void mdoc_run(struct termp *, |
|
const struct mdoc *); |
|
|
|
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 *); |
Line 51 ascii_alloc(void) |
|
Line 51 ascii_alloc(void) |
|
|
|
|
|
void |
void |
terminal_man(void *arg, const struct man *man) |
|
{ |
|
struct termp *p; |
|
|
|
p = (struct termp *)arg; |
|
if (NULL == p->symtab) |
|
p->symtab = chars_init(CHARS_ASCII); |
|
|
|
man_run(p, man); |
|
} |
|
|
|
|
|
void |
|
terminal_mdoc(void *arg, const struct mdoc *mdoc) |
|
{ |
|
struct termp *p; |
|
|
|
p = (struct termp *)arg; |
|
if (NULL == p->symtab) |
|
p->symtab = chars_init(CHARS_ASCII); |
|
|
|
mdoc_run(p, mdoc); |
|
} |
|
|
|
|
|
void |
|
terminal_free(void *arg) |
terminal_free(void *arg) |
{ |
{ |
|
|
Line 90 term_free(struct termp *p) |
|
Line 64 term_free(struct termp *p) |
|
|
|
if (p->buf) |
if (p->buf) |
free(p->buf); |
free(p->buf); |
if (TERMENC_ASCII == p->enc && p->symtab) |
if (p->symtab) |
chars_free(p->symtab); |
chars_free(p->symtab); |
|
|
free(p); |
free(p); |
Line 102 term_alloc(enum termenc enc) |
|
Line 76 term_alloc(enum termenc enc) |
|
{ |
{ |
struct termp *p; |
struct termp *p; |
|
|
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"); |
|
exit(EXIT_FAILURE); |
|
} |
p->maxrmargin = 78; |
p->maxrmargin = 78; |
p->enc = enc; |
p->enc = enc; |
return(p); |
return(p); |
Line 145 term_alloc(enum termenc enc) |
|
Line 121 term_alloc(enum termenc enc) |
|
* 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. |
* |
|
* Otherwise, the line will break at the right margin. Extremely long |
|
* lines will cause the system to emit a warning (TODO: hyphenate, if |
|
* possible). |
|
*/ |
*/ |
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; |
size_t vis; /* current visual position on output */ |
|
size_t vbl; /* number of blanks to prepend to output */ |
|
size_t vsz; /* visual characters to write to output */ |
|
size_t bp; /* visual right border position */ |
|
int j; /* temporary loop index */ |
|
size_t maxvis, mmax; |
static int overstep = 0; |
static int overstep = 0; |
|
|
/* |
/* |
* 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. |
*/ |
*/ |
|
|
assert(p->offset < p->rmargin); |
assert(p->offset < p->rmargin); |
assert((int)(p->rmargin - p->offset) - overstep > 0); |
|
|
|
maxvis = /* LINTED */ |
maxvis = (int)(p->rmargin - p->offset) - overstep < 0 ? |
p->rmargin - p->offset - overstep; |
/* LINTED */ |
mmax = /* LINTED */ |
0 : p->rmargin - p->offset - overstep; |
p->maxrmargin - p->offset - overstep; |
mmax = (int)(p->maxrmargin - p->offset) - overstep < 0 ? |
|
/* LINTED */ |
|
0 : p->maxrmargin - p->offset - overstep; |
|
|
bp = TERMP_NOBREAK & p->flags ? mmax : maxvis; |
bp = TERMP_NOBREAK & p->flags ? mmax : maxvis; |
|
|
|
/* |
|
* FIXME: if bp is zero, we still output the first word before |
|
* breaking the line. |
|
*/ |
|
|
vis = 0; |
vis = 0; |
overstep = 0; |
|
|
|
/* |
/* |
* If in the standard case (left-justified), then begin with our |
* If in the standard case (left-justified), then begin with our |
Line 230 term_flushln(struct termp *p) |
|
Line 213 term_flushln(struct termp *p) |
|
putchar(' '); |
putchar(' '); |
vis = 0; |
vis = 0; |
} |
} |
|
/* Remove the overstep width. */ |
|
bp += (int)/* LINTED */ |
|
overstep; |
|
overstep = 0; |
} else { |
} else { |
for (j = 0; j < (int)vbl; j++) |
for (j = 0; j < (int)vbl; j++) |
putchar(' '); |
putchar(' '); |
Line 246 term_flushln(struct termp *p) |
|
Line 233 term_flushln(struct termp *p) |
|
} |
} |
vis += vsz; |
vis += vsz; |
} |
} |
|
|
p->col = 0; |
p->col = 0; |
|
overstep = 0; |
|
|
if ( ! (TERMP_NOBREAK & p->flags)) { |
if ( ! (TERMP_NOBREAK & p->flags)) { |
putchar('\n'); |
putchar('\n'); |
Line 555 buffer(struct termp *p, char c) |
|
Line 544 buffer(struct termp *p, char c) |
|
p->maxcols = 256; |
p->maxcols = 256; |
s = p->maxcols * 2; |
s = p->maxcols * 2; |
p->buf = realloc(p->buf, s); |
p->buf = realloc(p->buf, s); |
if (NULL == p->buf) |
if (NULL == p->buf) { |
err(1, "realloc"); /* FIXME: shouldn't be here! */ |
fprintf(stderr, "memory exhausted\n"); |
|
exit(EXIT_FAILURE); |
|
} |
p->maxcols = s; |
p->maxcols = s; |
} |
} |
p->buf[(int)(p->col)++] = c; |
p->buf[(int)(p->col)++] = c; |
Line 568 encode(struct termp *p, char c) |
|
Line 559 encode(struct termp *p, char c) |
|
{ |
{ |
|
|
if (' ' != c) { |
if (' ' != c) { |
if (p->bold) { |
|
buffer(p, c); |
|
buffer(p, 8); |
|
} |
|
if (p->under) { |
if (p->under) { |
buffer(p, '_'); |
buffer(p, '_'); |
buffer(p, 8); |
buffer(p, 8); |
} |
} |
|
if (p->bold) { |
|
buffer(p, c); |
|
buffer(p, 8); |
|
} |
} |
} |
buffer(p, c); |
buffer(p, c); |
} |
} |
|
|
|
|
|
size_t |
|
term_vspan(const struct roffsu *su) |
|
{ |
|
double r; |
|
|
|
switch (su->unit) { |
|
case (SCALE_CM): |
|
r = su->scale * 2; |
|
break; |
|
case (SCALE_IN): |
|
r = su->scale * 6; |
|
break; |
|
case (SCALE_PC): |
|
r = su->scale; |
|
break; |
|
case (SCALE_PT): |
|
r = su->scale / 8; |
|
break; |
|
case (SCALE_MM): |
|
r = su->scale / 1000; |
|
break; |
|
case (SCALE_VS): |
|
r = su->scale; |
|
break; |
|
default: |
|
r = su->scale - 1; |
|
break; |
|
} |
|
|
|
if (r < 0.0) |
|
r = 0.0; |
|
return(/* LINTED */(size_t) |
|
r); |
|
} |
|
|
|
|
|
size_t |
|
term_hspan(const struct roffsu *su) |
|
{ |
|
double r; |
|
|
|
/* XXX: CM, IN, and PT are approximations. */ |
|
|
|
switch (su->unit) { |
|
case (SCALE_CM): |
|
r = 4 * su->scale; |
|
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); |
|
} |
|
|
|
|