version 1.78, 2009/06/11 10:34:32 |
version 1.81, 2009/06/22 12:04:05 |
Line 37 static void term_pescape(struct termp *, |
|
Line 37 static void term_pescape(struct termp *, |
|
static void term_nescape(struct termp *, |
static void term_nescape(struct termp *, |
const char *, size_t); |
const char *, size_t); |
static void term_chara(struct termp *, char); |
static void term_chara(struct termp *, char); |
static void term_stringa(struct termp *, |
static void term_encodea(struct termp *, char); |
const char *, size_t); |
|
static int term_isopendelim(const char *, int); |
static int term_isopendelim(const char *, int); |
static int term_isclosedelim(const char *, int); |
static int term_isclosedelim(const char *, int); |
|
|
Line 106 term_alloc(enum termenc enc) |
|
Line 105 term_alloc(enum termenc enc) |
|
if (NULL == (p = malloc(sizeof(struct termp)))) |
if (NULL == (p = malloc(sizeof(struct termp)))) |
err(1, "malloc"); |
err(1, "malloc"); |
bzero(p, sizeof(struct termp)); |
bzero(p, sizeof(struct termp)); |
p->maxrmargin = 80; |
p->maxrmargin = 78; |
p->enc = enc; |
p->enc = enc; |
return(p); |
return(p); |
} |
} |
|
|
term_flushln(struct termp *p) |
term_flushln(struct termp *p) |
{ |
{ |
int i, j; |
int i, j; |
size_t vsz, vis, maxvis, mmax, bp; |
size_t vbl, vsz, vis, maxvis, mmax, bp; |
|
|
/* |
/* |
* First, establish the maximum columns of "visible" content. |
* First, establish the maximum columns of "visible" content. |
Line 251 term_flushln(struct termp *p) |
|
Line 250 term_flushln(struct termp *p) |
|
} |
} |
|
|
/* |
/* |
* Do line-breaking. If we're greater than our |
* Choose the number of blanks to prepend: no blank at the |
* break-point and already in-line, break to the next |
* beginning of a line, one between words -- but do not |
* line and start writing. If we're at the line start, |
* actually write them yet. |
* then write out the word (TODO: hyphenate) and break |
|
* in a subsequent loop invocation. |
|
*/ |
*/ |
|
vbl = (size_t)(0 == vis ? 0 : 1); |
|
|
if ( ! (TERMP_NOBREAK & p->flags)) { |
/* |
if (vis && vis + vsz > bp) { |
* Find out whether we would exceed the right margin. |
putchar('\n'); |
* If so, break to the next line. (TODO: hyphenate) |
|
* Otherwise, write the chosen number of blanks now. |
|
*/ |
|
if (vis && vis + vbl + vsz > bp) { |
|
putchar('\n'); |
|
if (TERMP_NOBREAK & p->flags) { |
|
for (j = 0; j < (int)p->rmargin; j++) |
|
putchar(' '); |
|
vis = p->rmargin - p->offset; |
|
} else { |
for (j = 0; j < (int)p->offset; j++) |
for (j = 0; j < (int)p->offset; j++) |
putchar(' '); |
putchar(' '); |
vis = 0; |
vis = 0; |
} |
} |
} else if (vis && vis + vsz > bp) { |
} else { |
putchar('\n'); |
for (j = 0; j < (int)vbl; j++) |
for (j = 0; j < (int)p->rmargin; j++) |
|
putchar(' '); |
putchar(' '); |
vis = p->rmargin - p->offset; |
vis += vbl; |
} |
} |
|
|
/* |
/* |
* Prepend a space if we're not already at the beginning |
* Finally, write out the word. |
* of the line, then the word. |
|
*/ |
*/ |
|
|
if (0 < vis++) |
|
putchar(' '); |
|
|
|
for ( ; i < (int)p->col; i++) { |
for ( ; i < (int)p->col; i++) { |
if (' ' == p->buf[i]) |
if (' ' == p->buf[i]) |
break; |
break; |
Line 293 term_flushln(struct termp *p) |
|
Line 294 term_flushln(struct termp *p) |
|
* cause a newline and offset at the right margin. |
* cause a newline and offset at the right margin. |
*/ |
*/ |
|
|
if ((TERMP_NOBREAK & p->flags) && vis > maxvis) { |
if ((TERMP_NOBREAK & p->flags) && vis >= maxvis) { |
if ( ! (TERMP_NONOBREAK & p->flags)) { |
if ( ! (TERMP_NONOBREAK & p->flags)) { |
putchar('\n'); |
putchar('\n'); |
for (i = 0; i < (int)p->rmargin; i++) |
for (i = 0; i < (int)p->rmargin; i++) |
Line 310 term_flushln(struct termp *p) |
|
Line 311 term_flushln(struct termp *p) |
|
|
|
if (p->flags & TERMP_NOBREAK) { |
if (p->flags & TERMP_NOBREAK) { |
if ( ! (TERMP_NONOBREAK & p->flags)) |
if ( ! (TERMP_NONOBREAK & p->flags)) |
for ( ; vis <= maxvis; vis++) |
for ( ; vis < maxvis; vis++) |
putchar(' '); |
putchar(' '); |
} else |
} else |
putchar('\n'); |
putchar('\n'); |
Line 407 term_nescape(struct termp *p, const char *word, size_t |
|
Line 408 term_nescape(struct termp *p, const char *word, size_t |
|
{ |
{ |
const char *rhs; |
const char *rhs; |
size_t sz; |
size_t sz; |
|
int i; |
|
|
if (NULL == (rhs = term_a2ascii(p->symtab, word, len, &sz))) |
if ((rhs = term_a2ascii(p->symtab, word, len, &sz))) |
return; |
for (i = 0; i < (int)sz; i++) |
term_stringa(p, rhs, sz); |
term_encodea(p, rhs[i]); |
} |
} |
|
|
|
|
Line 519 term_pword(struct termp *p, const char *word, int len) |
|
Line 521 term_pword(struct termp *p, const char *word, int len) |
|
* before the word. |
* before the word. |
*/ |
*/ |
|
|
for (i = 0; i < len; i++) { |
for (i = 0; i < len; i++) |
if ('\\' == word[i]) { |
if ('\\' == word[i]) |
term_pescape(p, word, &i, len); |
term_pescape(p, word, &i, len); |
continue; |
else |
} |
term_encodea(p, word[i]); |
|
|
if (TERMP_STYLE & p->flags) { |
|
if (TERMP_BOLD & p->flags) { |
|
term_chara(p, word[i]); |
|
term_chara(p, 8); |
|
} |
|
if (TERMP_UNDER & p->flags) { |
|
term_chara(p, '_'); |
|
term_chara(p, 8); |
|
} |
|
} |
|
|
|
term_chara(p, word[i]); |
|
} |
|
|
|
if (term_isopendelim(word, len)) |
if (term_isopendelim(word, len)) |
p->flags |= TERMP_NOSPACE; |
p->flags |= TERMP_NOSPACE; |
} |
} |
|
|
|
|
/* |
/* |
* Like term_chara() but for arbitrary-length buffers. Resize the |
|
* buffer by a factor of two (if the buffer is less than that) or the |
|
* buffer's size. |
|
*/ |
|
static void |
|
term_stringa(struct termp *p, const char *c, size_t sz) |
|
{ |
|
size_t s; |
|
|
|
if (0 == sz) |
|
return; |
|
|
|
assert(c); |
|
if (p->col + sz >= p->maxcols) { |
|
if (0 == p->maxcols) |
|
p->maxcols = 256; |
|
s = sz > p->maxcols * 2 ? sz : p->maxcols * 2; |
|
p->buf = realloc(p->buf, s); |
|
if (NULL == p->buf) |
|
err(1, "realloc"); |
|
p->maxcols = s; |
|
} |
|
|
|
(void)memcpy(&p->buf[(int)p->col], c, sz); |
|
p->col += sz; |
|
} |
|
|
|
|
|
/* |
|
* Insert a single character into the line-buffer. If the buffer's |
* Insert a single character into the line-buffer. If the buffer's |
* space is exceeded, then allocate more space by doubling the buffer |
* space is exceeded, then allocate more space by doubling the buffer |
* size. |
* size. |
Line 595 term_chara(struct termp *p, char c) |
|
Line 554 term_chara(struct termp *p, char c) |
|
p->buf[(int)(p->col)++] = c; |
p->buf[(int)(p->col)++] = c; |
} |
} |
|
|
|
|
|
static void |
|
term_encodea(struct termp *p, char c) |
|
{ |
|
|
|
if (TERMP_STYLE & p->flags) { |
|
if (TERMP_BOLD & p->flags) { |
|
term_chara(p, c); |
|
term_chara(p, 8); |
|
} |
|
if (TERMP_UNDER & p->flags) { |
|
term_chara(p, '_'); |
|
term_chara(p, 8); |
|
} |
|
} |
|
term_chara(p, c); |
|
} |