version 1.89, 2009/07/16 13:17:51 |
version 1.93, 2009/07/24 11:54:25 |
Line 184 term_isopendelim(const char *p) |
|
Line 184 term_isopendelim(const char *p) |
|
* columns. In short: don't print a newline and instead pad to the |
* columns. In short: don't print a newline and instead pad to the |
* right margin. Used in conjunction with TERMP_NOLPAD. |
* right margin. Used in conjunction with TERMP_NOLPAD. |
* |
* |
|
* - TERMP_TWOSPACE: when padding, make sure there are at least two |
|
* space characters of padding. Otherwise, rather break the line. |
|
* |
* - TERMP_DANGLE: don't newline when TERMP_NOBREAK is specified and |
* - TERMP_DANGLE: don't newline when TERMP_NOBREAK is specified and |
* the line is overrun, and don't pad-right if it's underrun. |
* the line is overrun, and don't pad-right if it's underrun. |
* |
* |
Line 204 term_isopendelim(const char *p) |
|
Line 207 term_isopendelim(const char *p) |
|
* possible). |
* possible). |
* |
* |
* FIXME: newline breaks occur (in groff) also occur when a single |
* FIXME: newline breaks occur (in groff) also occur when a single |
* space follows a NOBREAK! |
* space follows a NOBREAK (try `Bl -tag') |
|
* |
|
* FIXME: there's a newline error where a `Bl -diag' will have a |
|
* trailing newline if the line is exactly 73 chars long. |
*/ |
*/ |
void |
void |
term_flushln(struct termp *p) |
term_flushln(struct termp *p) |
{ |
{ |
int i, j; |
int i, j; |
size_t vbl, vsz, vis, maxvis, mmax, bp; |
size_t vbl, vsz, vis, maxvis, mmax, bp; |
static int sv = -1; |
static int overstep = 0; |
|
|
/* |
/* |
* First, establish the maximum columns of "visible" content. |
* First, establish the maximum columns of "visible" content. |
Line 221 term_flushln(struct termp *p) |
|
Line 227 term_flushln(struct termp *p) |
|
*/ |
*/ |
|
|
assert(p->offset < p->rmargin); |
assert(p->offset < p->rmargin); |
maxvis = p->rmargin - p->offset; |
assert((int)(p->rmargin - p->offset) - overstep > 0); |
mmax = p->maxrmargin - p->offset; |
|
|
maxvis = /* LINTED */ |
|
p->rmargin - p->offset - overstep; |
|
mmax = /* LINTED */ |
|
p->maxrmargin - p->offset - overstep; |
|
|
bp = TERMP_NOBREAK & p->flags ? mmax : maxvis; |
bp = TERMP_NOBREAK & p->flags ? mmax : maxvis; |
vis = 0; |
vis = 0; |
|
overstep = 0; |
|
|
if (sv >= 0) { |
|
vis = (size_t)sv; |
|
sv = -1; |
|
} |
|
|
|
/* |
/* |
* If in the standard case (left-justified), then begin with our |
* If in the standard case (left-justified), then begin with our |
* indentation, otherwise (columns, etc.) just start spitting |
* indentation, otherwise (columns, etc.) just start spitting |
Line 252 term_flushln(struct termp *p) |
|
Line 259 term_flushln(struct termp *p) |
|
|
|
/* LINTED */ |
/* LINTED */ |
for (j = i, vsz = 0; j < (int)p->col; j++) { |
for (j = i, vsz = 0; j < (int)p->col; j++) { |
if (' ' == p->buf[j]) |
if (j && ' ' == p->buf[j]) |
break; |
break; |
else if (8 == p->buf[j]) |
else if (8 == p->buf[j]) |
vsz--; |
vsz--; |
Line 299 term_flushln(struct termp *p) |
|
Line 306 term_flushln(struct termp *p) |
|
} |
} |
vis += vsz; |
vis += vsz; |
} |
} |
|
p->col = 0; |
|
|
/* |
if ( ! (TERMP_NOBREAK & p->flags)) { |
* If we've overstepped our maximum visible no-break space, then |
putchar('\n'); |
* cause a newline and offset at the right margin. |
|
*/ |
|
|
|
if ((TERMP_NOBREAK & p->flags) && vis >= maxvis) { |
|
if ( ! (TERMP_DANGLE & p->flags) && |
|
! (TERMP_HANG & p->flags)) { |
|
putchar('\n'); |
|
for (i = 0; i < (int)p->rmargin; i++) |
|
putchar(' '); |
|
} |
|
if (TERMP_HANG & p->flags) |
|
sv = (int)(vis - maxvis); |
|
p->col = 0; |
|
return; |
return; |
} |
} |
|
|
/* |
if (TERMP_HANG & p->flags) { |
* If we're not to right-marginalise it (newline), then instead |
/* We need one blank after the tag. */ |
* pad to the right margin and stay off. |
overstep = /* LINTED */ |
*/ |
vis - maxvis + 1; |
|
|
if (p->flags & TERMP_NOBREAK) { |
/* |
if ( ! (TERMP_DANGLE & p->flags)) |
* Behave exactly the same way as groff: |
for ( ; vis < maxvis; vis++) |
* If we have overstepped the margin, temporarily move |
putchar(' '); |
* it to the right and flag the rest of the line to be |
} else |
* shorter. |
putchar('\n'); |
* If we landed right at the margin, be happy. |
|
* If we are one step before the margin, temporarily |
|
* move it one step LEFT and flag the rest of the line |
|
* to be longer. |
|
*/ |
|
if (overstep >= -1) { |
|
assert((int)maxvis + overstep >= 0); |
|
/* LINTED */ |
|
maxvis += overstep; |
|
} else |
|
overstep = 0; |
|
|
p->col = 0; |
} else if (TERMP_DANGLE & p->flags) |
|
return; |
|
|
|
/* Right-pad. */ |
|
if (maxvis > vis + /* LINTED */ |
|
((TERMP_TWOSPACE & p->flags) ? 1 : 0)) |
|
for ( ; vis < maxvis; vis++) |
|
putchar(' '); |
|
else { /* ...or newline break. */ |
|
putchar('\n'); |
|
for (i = 0; i < (int)p->rmargin; i++) |
|
putchar(' '); |
|
} |
} |
} |
|
|
|
|