femsci/toilet
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* Completed support for -s, -S, -k, -W, -o.

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This commit is contained in:
Sam Hocevar 2006-11-16 00:04:39 +00:00 committed by sam
parent 4b1d3a28f5
commit 3a513d8be4
3 changed files with 90 additions and 45 deletions
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116
src/figlet.c
View file

@ -37,16 +37,42 @@ static int flush_figlet(context_t *);
static int end_figlet(context_t *);
static int open_font(context_t *cx);
static uint32_t smush(uint32_t, uint32_t, unsigned int);
static uint32_t hsmush(uint32_t, uint32_t, unsigned int);
int init_figlet(context_t *cx)
{
if(open_font(cx))
return -1;
/* FIXME: read the font's contents */
if(cx->hlayout == H_DEFAULT)
cx->hlayout = H_SMUSH;
if(cx->full_layout & 0x3f)
cx->hsmushrule = cx->full_layout & 0x3f;
else if(cx->old_layout > 0)
cx->hsmushrule = cx->old_layout;
switch(cx->hmode)
{
case H_DEFAULT:
if(cx->old_layout == -1)
cx->hmode = H_NONE;
else if(cx->old_layout == 0 && (cx->full_layout & 0xc0) == 0x40)
cx->hmode = H_KERN;
else if((cx->old_layout & 0x3f) && (cx->full_layout & 0x3f)
&& (cx->full_layout & 0x80))
{
cx->hmode = H_SMUSH;
cx->hsmushrule = cx->full_layout & 0x3f;
}
else if(cx->old_layout == 0 && (cx->full_layout & 0xbf) == 0x80)
{
cx->hmode = H_SMUSH;
cx->hsmushrule = 0x3f;
}
else
cx->hmode = H_OVERLAP;
break;
default:
break;
}
cx->charcv = cucul_create_canvas(cx->max_length - 2, cx->height);
@ -97,12 +123,12 @@ static int feed_figlet(context_t *cx, uint32_t ch, uint32_t attr)
}
/* Compute how much the next character will overlap */
switch(cx->hlayout)
switch(cx->hmode)
{
case H_SMUSH:
case H_KERN:
case H_OVERLAP:
extra = (cx->hlayout == H_OVERLAP);
extra = (cx->hmode == H_OVERLAP);
overlap = w;
for(y = 0; y < h; y++)
{
@ -117,16 +143,16 @@ static int feed_figlet(context_t *cx, uint32_t ch, uint32_t attr)
break;
/* Handle overlapping */
if(cx->hlayout == H_OVERLAP && xleft < cx->x)
if(cx->hmode == H_OVERLAP && xleft < cx->x)
xleft++;
/* Handle smushing */
if(cx->hlayout == H_SMUSH)
if(cx->hmode == H_SMUSH)
{
if(xleft < cx->x &&
smush(cucul_get_char(cx->cv, cx->x - 1 - xleft, cx->y + y),
cucul_get_char(cx->charcv, xright, y),
0))
hsmush(cucul_get_char(cx->cv, cx->x - 1 - xleft, cx->y + y),
cucul_get_char(cx->charcv, xright, y),
cx->hsmushrule))
xleft++;
}
@ -166,11 +192,11 @@ static int feed_figlet(context_t *cx, uint32_t ch, uint32_t attr)
/* FIXME: this could be changed to cucul_put_attr() when the
* function is fixed in libcucul */
//cucul_set_attr(cx->cv, tmpat);
if(ch1 == ' ' || cx->hlayout != H_SMUSH)
if(ch1 == ' ' || cx->hmode != H_SMUSH)
cucul_put_char(cx->cv, cx->x + x - overlap, cx->y + y, ch2);
else
cucul_put_char(cx->cv, cx->x + x - overlap, cx->y + y,
smush(ch1, ch2, 0));
hsmush(ch1, ch2, cx->hsmushrule));
//cucul_put_attr(cx->cv, cx->x + x, cx->y + y, tmpat);
}
@ -255,6 +281,16 @@ static int open_font(context_t *cx)
return -1;
}
if(cx->old_layout < -1 || cx->old_layout > 63 || cx->full_layout > 32767
|| ((cx->full_layout & 0x80) && (cx->full_layout & 0x3f) == 0
&& cx->old_layout))
{
fprintf(stderr, "font `%s' has invalid layout %i/%u\n",
path, cx->old_layout, cx->full_layout);
toiclose(f);
return -1;
}
cx->hardblank = cucul_utf8_to_utf32(hardblank, NULL);
/* Skip comment lines */
@ -373,31 +409,33 @@ static int open_font(context_t *cx)
return 0;
}
static uint32_t smush(uint32_t ch1, uint32_t ch2, unsigned int mode)
static uint32_t hsmush(uint32_t ch1, uint32_t ch2, unsigned int rule)
{
/* Rule 1 */
if(ch1 == ch2 && ch1 != 0xa0)
if((rule & 0x01) && ch1 == ch2 && ch1 != 0xa0)
return ch2;
if(ch1 < 0x80 && ch2 < 0x80)
{
char const rule2[] = "|/\\[]{}()<>";
char const rule3[] = "||/\\[]{}()<>";
char const charlist[] = "|/\\[]{}()<>";
char *tmp1, *tmp2;
uint16_t s, p;
/* Rule 2 */
if(ch1 == '_' && strchr(rule2, ch2))
return ch2;
if(rule & 0x02)
{
if(ch1 == '_' && strchr(charlist, ch2))
return ch2;
if(ch2 == '_' && strchr(rule2, ch1))
return ch1;
if(ch2 == '_' && strchr(charlist, ch1))
return ch1;
}
/* Rule 3 */
if((tmp1 = strchr(rule3, ch1)) && (tmp2 = strchr(rule3, ch2)))
if((rule & 0x04) &&
(tmp1 = strchr(charlist, ch1)) && (tmp2 = strchr(charlist, ch2)))
{
int cl1 = (tmp1 - rule3) / 2;
int cl2 = (tmp2 - rule3) / 2;
int cl1 = (tmp1 + 1 - charlist) / 2;
int cl2 = (tmp2 + 1 - charlist) / 2;
if(cl1 < cl2)
return ch2;
@ -406,24 +444,30 @@ static uint32_t smush(uint32_t ch1, uint32_t ch2, unsigned int mode)
}
/* Rule 4 */
s = ch1 + ch2;
p = ch1 * ch2;
if(rule & 0x08)
{
uint16_t s = ch1 + ch2;
uint16_t p = ch1 * ch2;
if(p == 15375 /* '{' * '}' */
|| p == 8463 /* '[' * ']' */
|| (p == 1640 && s == 81)) /* '(' *|+ ')' */
return '|';
if(p == 15375 /* '{' * '}' */
|| p == 8463 /* '[' * ']' */
|| (p == 1640 && s == 81)) /* '(' *|+ ')' */
return '|';
}
/* Rule 5 */
switch((ch1 << 8) | ch2)
if(rule & 0x10)
{
case 0x2f5c: return '|'; /* /\ */
case 0x5c2f: return 'Y'; /* \/ */
case 0x3e3c: return 'X'; /* >< */
switch((ch1 << 8) | ch2)
{
case 0x2f5c: return '|'; /* /\ */
case 0x5c2f: return 'Y'; /* \/ */
case 0x3e3c: return 'X'; /* >< */
}
}
/* Rule 6 */
if(ch1 == ch2 && ch1 == 0xa0)
if((rule & 0x20) && ch1 == ch2 && ch1 == 0xa0)
return 0xa0;
}

16
src/main.c
View file

@ -54,7 +54,7 @@ int main(int argc, char *argv[])
cx->term_width = 80;
cx->hlayout = H_DEFAULT;
cx->hmode = H_DEFAULT;
cx->filters = NULL;
cx->nfilters = 0;
@ -138,19 +138,19 @@ int main(int argc, char *argv[])
break;
}
case 's':
cx->hlayout = H_DEFAULT;
cx->hmode = H_DEFAULT;
break;
case 'S':
cx->hlayout = H_SMUSH;
cx->hmode = H_SMUSH;
break;
case 'k':
cx->hlayout = H_KERN;
cx->hmode = H_KERN;
break;
case 'W':
cx->hlayout = H_NONE;
cx->hmode = H_NONE;
break;
case 'o':
cx->hlayout = H_OVERLAP;
cx->hmode = H_OVERLAP;
break;
case 'E': /* --export */
if(!strcmp(optarg, "list"))
@ -249,7 +249,7 @@ static void usage(void)
# ifdef HAVE_GETOPT_LONG
printf(" -f, --font <name> select the font\n");
printf(" -d, --directory <dir> specify font directory\n");
printf(" -s, -S, -k, -W, -o render mode (default smushing, force smushing,\n");
printf(" -s, -S, -k, -W, -o render mode (default, force smushing,\n");
printf(" kerning, full width, overlap)\n");
printf(" -w, --width <width> set output width\n");
printf(" -t, --termwidth adapt to terminal's width\n");
@ -267,7 +267,7 @@ static void usage(void)
# else
printf(" -f <name> select the font\n");
printf(" -d <dir> specify font directory\n");
printf(" -s, -S, -k, -W, -o render mode (default smushing, force smushing,\n");
printf(" -s, -S, -k, -W, -o render mode (default, force smushing,\n");
printf(" kerning, full width, overlap)\n");
printf(" -w <width> set output width\n");
printf(" -t adapt to terminal's width\n");

3
src/toilet.h
View file

@ -33,7 +33,8 @@ struct toilet_context
int (*end)(struct toilet_context *);
/* Used by the FIGlet driver */
enum { H_DEFAULT, H_KERN, H_SMUSH, H_NONE, H_OVERLAP } hlayout;
enum { H_DEFAULT, H_KERN, H_SMUSH, H_NONE, H_OVERLAP } hmode;
unsigned int hsmushrule;
unsigned long int hardblank;
unsigned int height, baseline, max_length;
int old_layout;