version 1.269, 2017/06/12 19:05:47 |
version 1.280, 2019/01/15 12:16:18 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2010-2017 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2010-2019 Ingo Schwarze <schwarze@openbsd.org> |
* |
* |
* Permission to use, copy, modify, and distribute this software for any |
* Permission to use, copy, modify, and distribute this software for any |
* purpose with or without fee is hereby granted, provided that the above |
* purpose with or without fee is hereby granted, provided that the above |
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#include <assert.h> |
#include <assert.h> |
#include <ctype.h> |
#include <ctype.h> |
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#include <stdint.h> |
#include <stdio.h> |
#include <stdio.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
Line 37 static void bufferc(struct termp *, char); |
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Line 38 static void bufferc(struct termp *, char); |
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static void encode(struct termp *, const char *, size_t); |
static void encode(struct termp *, const char *, size_t); |
static void encode1(struct termp *, int); |
static void encode1(struct termp *, int); |
static void endline(struct termp *); |
static void endline(struct termp *); |
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static void term_field(struct termp *, size_t, size_t, |
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size_t, size_t); |
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static void term_fill(struct termp *, size_t *, size_t *, |
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size_t); |
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void |
void |
Line 83 term_end(struct termp *p) |
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Line 88 term_end(struct termp *p) |
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* Flush a chunk of text. By default, break the output line each time |
* Flush a chunk of text. By default, break the output line each time |
* the right margin is reached, and continue output on the next line |
* the right margin is reached, and continue output on the next line |
* at the same offset as the chunk itself. By default, also break the |
* at the same offset as the chunk itself. By default, also break the |
* output line at the end of the chunk. |
* output line at the end of the chunk. There are many flags modifying |
* The following flags may be specified: |
* this behaviour, see the comments in the body of the function. |
* |
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* - TERMP_NOBREAK: Do not break the output line at the right margin, |
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* but only at the max right margin. Also, do not break the output |
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* line at the end of the chunk, such that the next call can pad to |
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* the next column. However, if less than p->trailspace blanks, |
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* which can be 0, 1, or 2, remain to the right margin, the line |
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* will be broken. |
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* - TERMP_BRTRSP: Consider trailing whitespace significant |
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* when deciding whether the chunk fits or not. |
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* - TERMP_BRIND: If the chunk does not fit and the output line has |
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* to be broken, start the next line at the right margin instead |
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* of at the offset. Used together with TERMP_NOBREAK for the tags |
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* in various kinds of tagged lists. |
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* - TERMP_HANG: Do not break the output line at the right margin, |
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* append the next chunk after it even if this one is too long. |
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* To be used together with TERMP_NOBREAK. |
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* - TERMP_NOPAD: Start writing at the current position, |
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* do not pad with blank characters up to the offset. |
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*/ |
*/ |
void |
void |
term_flushln(struct termp *p) |
term_flushln(struct termp *p) |
{ |
{ |
size_t vis; /* current visual position on output */ |
size_t vbl; /* Number of blanks to prepend to the output. */ |
size_t vbl; /* number of blanks to prepend to output */ |
size_t vbr; /* Actual visual position of the end of field. */ |
size_t vend; /* end of word visual position on output */ |
size_t vfield; /* Desired visual field width. */ |
size_t bp; /* visual right border position */ |
size_t vtarget; /* Desired visual position of the right margin. */ |
size_t dv; /* temporary for visual pos calculations */ |
size_t ic; /* Character position in the input buffer. */ |
size_t j; /* temporary loop index for p->tcol->buf */ |
size_t nbr; /* Number of characters to print in this field. */ |
size_t jhy; /* last hyph before overflow w/r/t j */ |
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size_t maxvis; /* output position of visible boundary */ |
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int ntab; /* number of tabs to prepend */ |
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/* |
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* Normally, start writing at the left margin, but with the |
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* NOPAD flag, start writing at the current position instead. |
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*/ |
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vbl = (p->flags & TERMP_NOPAD) || p->tcol->offset < p->viscol ? |
vbl = (p->flags & TERMP_NOPAD) || p->tcol->offset < p->viscol ? |
0 : p->tcol->offset - p->viscol; |
0 : p->tcol->offset - p->viscol; |
if (p->minbl && vbl < p->minbl) |
if (p->minbl && vbl < p->minbl) |
vbl = p->minbl; |
vbl = p->minbl; |
maxvis = p->tcol->rmargin > p->viscol + vbl ? |
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p->tcol->rmargin - p->viscol - vbl : 0; |
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bp = !(p->flags & TERMP_NOBREAK) ? maxvis : |
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p->maxrmargin > p->viscol + vbl ? |
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p->maxrmargin - p->viscol - vbl : 0; |
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vis = vend = 0; |
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if ((p->flags && TERMP_MULTICOL) == 0) |
if ((p->flags & TERMP_MULTICOL) == 0) |
p->tcol->col = 0; |
p->tcol->col = 0; |
while (p->tcol->col < p->tcol->lastcol) { |
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/* Loop over output lines. */ |
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for (;;) { |
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vfield = p->tcol->rmargin > p->viscol + vbl ? |
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p->tcol->rmargin - p->viscol - vbl : 0; |
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/* |
/* |
* Handle literal tab characters: collapse all |
* Normally, break the line at the the right margin |
* subsequent tabs into a single huge set of spaces. |
* of the field, but with the NOBREAK flag, only |
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* break it at the max right margin of the screen, |
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* and with the BRNEVER flag, never break it at all. |
*/ |
*/ |
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ntab = 0; |
vtarget = p->flags & TERMP_BRNEVER ? SIZE_MAX : |
while (p->tcol->col < p->tcol->lastcol && |
(p->flags & TERMP_NOBREAK) == 0 ? vfield : |
p->tcol->buf[p->tcol->col] == '\t') { |
p->maxrmargin > p->viscol + vbl ? |
vend = term_tab_next(vis); |
p->maxrmargin - p->viscol - vbl : 0; |
vbl += vend - vis; |
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vis = vend; |
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ntab++; |
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p->tcol->col++; |
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} |
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/* |
/* |
* Count up visible word characters. Control sequences |
* Figure out how much text will fit in the field. |
* (starting with the CSI) aren't counted. A space |
* If there is whitespace only, print nothing. |
* generates a non-printing word, which is valid (the |
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* space is printed according to regular spacing rules). |
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*/ |
*/ |
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jhy = 0; |
term_fill(p, &nbr, &vbr, vtarget); |
for (j = p->tcol->col; j < p->tcol->lastcol; j++) { |
if (nbr == 0) |
if (p->tcol->buf[j] == ' ' || p->tcol->buf[j] == '\t') |
break; |
break; |
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/* Back over the last printed character. */ |
/* |
if (p->tcol->buf[j] == '\b') { |
* With the CENTER or RIGHT flag, increase the indentation |
assert(j); |
* to center the text between the left and right margins |
vend -= (*p->width)(p, p->tcol->buf[j - 1]); |
* or to adjust it to the right margin, respectively. |
continue; |
*/ |
} |
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/* Regular word. */ |
if (vbr < vtarget) { |
/* Break at the hyphen point if we overrun. */ |
if (p->flags & TERMP_CENTER) |
if (vend > vis && vend < bp && |
vbl += (vtarget - vbr) / 2; |
(p->tcol->buf[j] == ASCII_HYPH|| |
else if (p->flags & TERMP_RIGHT) |
p->tcol->buf[j] == ASCII_BREAK)) |
vbl += vtarget - vbr; |
jhy = j; |
} |
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/* |
/* Finally, print the field content. */ |
* Hyphenation now decided, put back a real |
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* hyphen such that we get the correct width. |
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*/ |
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if (p->tcol->buf[j] == ASCII_HYPH) |
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p->tcol->buf[j] = '-'; |
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vend += (*p->width)(p, p->tcol->buf[j]); |
term_field(p, vbl, nbr, vbr, vtarget); |
} |
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/* |
/* |
* Find out whether we would exceed the right margin. |
* If there is no text left in the field, exit the loop. |
* If so, break to the next line. |
* If the BRTRSP flag is set, consider trailing |
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* whitespace significant when deciding whether |
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* the field fits or not. |
*/ |
*/ |
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if (vend > bp && jhy == 0 && vis > 0 && |
for (ic = p->tcol->col; ic < p->tcol->lastcol; ic++) { |
(p->flags & TERMP_BRNEVER) == 0) { |
switch (p->tcol->buf[ic]) { |
if (p->flags & TERMP_MULTICOL) |
case '\t': |
return; |
if (p->flags & TERMP_BRTRSP) |
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vbr = term_tab_next(vbr); |
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continue; |
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case ' ': |
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if (p->flags & TERMP_BRTRSP) |
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vbr += (*p->width)(p, ' '); |
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continue; |
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case '\n': |
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case ASCII_BREAK: |
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continue; |
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default: |
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break; |
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} |
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break; |
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} |
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if (ic == p->tcol->lastcol) |
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break; |
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endline(p); |
/* |
vend -= vis; |
* At the location of an automtic line break, input |
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* space characters are consumed by the line break. |
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*/ |
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/* Use pending tabs on the new line. */ |
while (p->tcol->col < p->tcol->lastcol && |
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p->tcol->buf[p->tcol->col] == ' ') |
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p->tcol->col++; |
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vbl = 0; |
/* |
while (ntab--) |
* In multi-column mode, leave the rest of the text |
vbl = term_tab_next(vbl); |
* in the buffer to be handled by a subsequent |
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* invocation, such that the other columns of the |
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* table can be handled first. |
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* In single-column mode, simply break the line. |
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*/ |
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/* Re-establish indentation. */ |
if (p->flags & TERMP_MULTICOL) |
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return; |
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if (p->flags & TERMP_BRIND) |
endline(p); |
vbl += p->tcol->rmargin; |
p->viscol = 0; |
else |
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vbl += p->tcol->offset; |
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maxvis = p->tcol->rmargin > vbl ? |
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p->tcol->rmargin - vbl : 0; |
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bp = !(p->flags & TERMP_NOBREAK) ? maxvis : |
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p->maxrmargin > vbl ? p->maxrmargin - vbl : 0; |
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} |
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/* |
/* |
* Write out the rest of the word. |
* Normally, start the next line at the same indentation |
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* as this one, but with the BRIND flag, start it at the |
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* right margin instead. This is used together with |
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* NOBREAK for the tags in various kinds of tagged lists. |
*/ |
*/ |
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for ( ; p->tcol->col < p->tcol->lastcol; p->tcol->col++) { |
vbl = p->flags & TERMP_BRIND ? |
if (vend > bp && jhy > 0 && p->tcol->col > jhy) |
p->tcol->rmargin : p->tcol->offset; |
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} |
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/* Reset output state in preparation for the next field. */ |
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p->col = p->tcol->col = p->tcol->lastcol = 0; |
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p->minbl = p->trailspace; |
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p->flags &= ~(TERMP_BACKAFTER | TERMP_BACKBEFORE | TERMP_NOPAD); |
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if (p->flags & TERMP_MULTICOL) |
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return; |
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/* |
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* The HANG flag means that the next field |
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* always follows on the same line. |
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* The NOBREAK flag means that the next field |
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* follows on the same line unless the field was overrun. |
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* Normally, break the line at the end of each field. |
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*/ |
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if ((p->flags & TERMP_HANG) == 0 && |
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((p->flags & TERMP_NOBREAK) == 0 || |
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vbr + term_len(p, p->trailspace) > vfield)) |
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endline(p); |
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} |
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/* |
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* Store the number of input characters to print in this field in *nbr |
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* and their total visual width to print in *vbr. |
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* If there is only whitespace in the field, both remain zero. |
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* The desired visual width of the field is provided by vtarget. |
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* If the first word is longer, the field will be overrun. |
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*/ |
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static void |
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term_fill(struct termp *p, size_t *nbr, size_t *vbr, size_t vtarget) |
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{ |
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size_t ic; /* Character position in the input buffer. */ |
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size_t vis; /* Visual position of the current character. */ |
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size_t vn; /* Visual position of the next character. */ |
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int breakline; /* Break at the end of this word. */ |
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int graph; /* Last character was non-blank. */ |
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*nbr = *vbr = vis = 0; |
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breakline = graph = 0; |
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for (ic = p->tcol->col; ic < p->tcol->lastcol; ic++) { |
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switch (p->tcol->buf[ic]) { |
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case '\b': /* Escape \o (overstrike) or backspace markup. */ |
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assert(ic > 0); |
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vis -= (*p->width)(p, p->tcol->buf[ic - 1]); |
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continue; |
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case '\t': /* Normal ASCII whitespace. */ |
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case ' ': |
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case ASCII_BREAK: /* Escape \: (breakpoint). */ |
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switch (p->tcol->buf[ic]) { |
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case '\t': |
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vn = term_tab_next(vis); |
break; |
break; |
if (p->tcol->buf[p->tcol->col] == '\t') |
case ' ': |
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vn = vis + (*p->width)(p, ' '); |
break; |
break; |
if (p->tcol->buf[p->tcol->col] == ' ') { |
case ASCII_BREAK: |
j = p->tcol->col; |
vn = vis; |
while (p->tcol->col < p->tcol->lastcol && |
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p->tcol->buf[p->tcol->col] == ' ') |
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p->tcol->col++; |
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dv = (p->tcol->col - j) * (*p->width)(p, ' '); |
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vbl += dv; |
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vend += dv; |
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break; |
break; |
} |
} |
if (p->tcol->buf[p->tcol->col] == ASCII_NBRSP) { |
/* Can break at the end of a word. */ |
vbl += (*p->width)(p, ' '); |
if (breakline || vn > vtarget) |
continue; |
break; |
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if (graph) { |
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*nbr = ic; |
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*vbr = vis; |
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graph = 0; |
} |
} |
if (p->tcol->buf[p->tcol->col] == ASCII_BREAK) |
vis = vn; |
continue; |
continue; |
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case '\n': /* Escape \p (break at the end of the word). */ |
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breakline = 1; |
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continue; |
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case ASCII_HYPH: /* Breakable hyphen. */ |
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graph = 1; |
/* |
/* |
* Now we definitely know there will be |
* We are about to decide whether to break the |
* printable characters to output, |
* line or not, so we no longer need this hyphen |
* so write preceding white space now. |
* to be marked as breakable. Put back a real |
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* hyphen such that we get the correct width. |
*/ |
*/ |
if (vbl) { |
p->tcol->buf[ic] = '-'; |
(*p->advance)(p, vbl); |
vis += (*p->width)(p, '-'); |
p->viscol += vbl; |
if (vis > vtarget) { |
vbl = 0; |
ic++; |
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break; |
} |
} |
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*nbr = ic + 1; |
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*vbr = vis; |
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continue; |
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(*p->letter)(p, p->tcol->buf[p->tcol->col]); |
case ASCII_NBRSP: /* Non-breakable space. */ |
if (p->tcol->buf[p->tcol->col] == '\b') |
p->tcol->buf[ic] = ' '; |
p->viscol -= (*p->width)(p, |
/* FALLTHROUGH */ |
p->tcol->buf[p->tcol->col - 1]); |
default: /* Printable character. */ |
else |
graph = 1; |
p->viscol += (*p->width)(p, |
vis += (*p->width)(p, p->tcol->buf[ic]); |
p->tcol->buf[p->tcol->col]); |
if (vis > vtarget && *nbr > 0) |
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return; |
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continue; |
} |
} |
vis = vend; |
break; |
} |
} |
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/* |
/* |
* If there was trailing white space, it was not printed; |
* If the last word extends to the end of the field without any |
* so reset the cursor position accordingly. |
* trailing whitespace, the loop could not check yet whether it |
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* can remain on this line. So do the check now. |
*/ |
*/ |
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if (vis > vbl) |
if (graph && (vis <= vtarget || *nbr == 0)) { |
vis -= vbl; |
*nbr = ic; |
else |
*vbr = vis; |
vis = 0; |
} |
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} |
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p->col = p->tcol->col = p->tcol->lastcol = 0; |
/* |
p->minbl = p->trailspace; |
* Print the contents of one field |
p->flags &= ~(TERMP_BACKAFTER | TERMP_BACKBEFORE | TERMP_NOPAD); |
* with an indentation of vbl visual columns, |
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* an input string length of nbr characters, |
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* an output width of vbr visual columns, |
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* and a desired field width of vtarget visual columns. |
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*/ |
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static void |
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term_field(struct termp *p, size_t vbl, size_t nbr, size_t vbr, size_t vtarget) |
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{ |
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size_t ic; /* Character position in the input buffer. */ |
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size_t vis; /* Visual position of the current character. */ |
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size_t dv; /* Visual width of the current character. */ |
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size_t vn; /* Visual position of the next character. */ |
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if (p->flags & TERMP_MULTICOL) |
vis = 0; |
return; |
for (ic = p->tcol->col; ic < nbr; ic++) { |
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/* Trailing whitespace is significant in some columns. */ |
/* |
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* To avoid the printing of trailing whitespace, |
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* do not print whitespace right away, only count it. |
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*/ |
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if (vis && vbl && (TERMP_BRTRSP & p->flags)) |
switch (p->tcol->buf[ic]) { |
vis += vbl; |
case '\n': |
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case ASCII_BREAK: |
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continue; |
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case '\t': |
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vn = term_tab_next(vis); |
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vbl += vn - vis; |
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vis = vn; |
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continue; |
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case ' ': |
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case ASCII_NBRSP: |
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dv = (*p->width)(p, ' '); |
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vbl += dv; |
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vis += dv; |
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continue; |
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default: |
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break; |
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} |
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/* If the column was overrun, break the line. */ |
/* |
if ((p->flags & TERMP_NOBREAK) == 0 || |
* We found a non-blank character to print, |
((p->flags & TERMP_HANG) == 0 && |
* so write preceding white space now. |
vis + p->trailspace * (*p->width)(p, ' ') > maxvis)) |
*/ |
endline(p); |
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if (vbl > 0) { |
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(*p->advance)(p, vbl); |
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p->viscol += vbl; |
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vbl = 0; |
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} |
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|
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/* Print the character and adjust the visual position. */ |
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(*p->letter)(p, p->tcol->buf[ic]); |
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if (p->tcol->buf[ic] == '\b') { |
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dv = (*p->width)(p, p->tcol->buf[ic - 1]); |
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p->viscol -= dv; |
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vis -= dv; |
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} else { |
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dv = (*p->width)(p, p->tcol->buf[ic]); |
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p->viscol += dv; |
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vis += dv; |
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} |
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} |
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p->tcol->col = nbr; |
} |
} |
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static void |
static void |
Line 448 term_word(struct termp *p, const char *word) |
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Line 566 term_word(struct termp *p, const char *word) |
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word++; |
word++; |
esc = mandoc_escape(&word, &seq, &sz); |
esc = mandoc_escape(&word, &seq, &sz); |
if (ESCAPE_ERROR == esc) |
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continue; |
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switch (esc) { |
switch (esc) { |
case ESCAPE_UNICODE: |
case ESCAPE_UNICODE: |
uc = mchars_num2uc(seq + 1, sz - 1); |
uc = mchars_num2uc(seq + 1, sz - 1); |
Line 471 term_word(struct termp *p, const char *word) |
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Line 586 term_word(struct termp *p, const char *word) |
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encode1(p, uc); |
encode1(p, uc); |
} |
} |
continue; |
continue; |
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case ESCAPE_UNDEF: |
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uc = *seq; |
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break; |
case ESCAPE_FONTBOLD: |
case ESCAPE_FONTBOLD: |
term_fontrepl(p, TERMFONT_BOLD); |
term_fontrepl(p, TERMFONT_BOLD); |
continue; |
continue; |
Line 481 term_word(struct termp *p, const char *word) |
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Line 599 term_word(struct termp *p, const char *word) |
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term_fontrepl(p, TERMFONT_BI); |
term_fontrepl(p, TERMFONT_BI); |
continue; |
continue; |
case ESCAPE_FONT: |
case ESCAPE_FONT: |
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case ESCAPE_FONTCW: |
case ESCAPE_FONTROMAN: |
case ESCAPE_FONTROMAN: |
term_fontrepl(p, TERMFONT_NONE); |
term_fontrepl(p, TERMFONT_NONE); |
continue; |
continue; |
case ESCAPE_FONTPREV: |
case ESCAPE_FONTPREV: |
term_fontlast(p); |
term_fontlast(p); |
continue; |
continue; |
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case ESCAPE_BREAK: |
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bufferc(p, '\n'); |
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continue; |
case ESCAPE_NOSPACE: |
case ESCAPE_NOSPACE: |
if (p->flags & TERMP_BACKAFTER) |
if (p->flags & TERMP_BACKAFTER) |
p->flags &= ~TERMP_BACKAFTER; |
p->flags &= ~TERMP_BACKAFTER; |
else if (*word == '\0') |
else if (*word == '\0') |
p->flags |= (TERMP_NOSPACE | TERMP_NONEWLINE); |
p->flags |= (TERMP_NOSPACE | TERMP_NONEWLINE); |
continue; |
continue; |
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case ESCAPE_DEVICE: |
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if (p->type == TERMTYPE_PDF) |
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encode(p, "pdf", 3); |
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else if (p->type == TERMTYPE_PS) |
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encode(p, "ps", 2); |
|
else if (p->enc == TERMENC_ASCII) |
|
encode(p, "ascii", 5); |
|
else |
|
encode(p, "utf8", 4); |
|
continue; |
case ESCAPE_HORIZ: |
case ESCAPE_HORIZ: |
|
if (*seq == '|') { |
|
seq++; |
|
uc = -p->col; |
|
} else |
|
uc = 0; |
if (a2roffsu(seq, &su, SCALE_EM) == NULL) |
if (a2roffsu(seq, &su, SCALE_EM) == NULL) |
continue; |
continue; |
uc = term_hspan(p, &su) / 24; |
uc += term_hen(p, &su); |
if (uc > 0) |
if (uc > 0) |
while (uc-- > 0) |
while (uc-- > 0) |
bufferc(p, ASCII_NBRSP); |
bufferc(p, ASCII_NBRSP); |
Line 515 term_word(struct termp *p, const char *word) |
|
Line 652 term_word(struct termp *p, const char *word) |
|
} |
} |
continue; |
continue; |
case ESCAPE_HLINE: |
case ESCAPE_HLINE: |
if ((seq = a2roffsu(seq, &su, SCALE_EM)) == NULL) |
if ((cp = a2roffsu(seq, &su, SCALE_EM)) == NULL) |
continue; |
continue; |
uc = term_hspan(p, &su) / 24; |
uc = term_hen(p, &su); |
if (uc <= 0) { |
if (uc <= 0) { |
if (p->tcol->rmargin <= p->tcol->offset) |
if (p->tcol->rmargin <= p->tcol->offset) |
continue; |
continue; |
lsz = p->tcol->rmargin - p->tcol->offset; |
lsz = p->tcol->rmargin - p->tcol->offset; |
} else |
} else |
lsz = uc; |
lsz = uc; |
if (*seq == '\0') |
if (*cp == seq[-1]) |
uc = -1; |
uc = -1; |
else if (*seq == '\\') { |
else if (*cp == '\\') { |
seq++; |
seq = cp + 1; |
esc = mandoc_escape(&seq, &cp, &sz); |
esc = mandoc_escape(&seq, &cp, &sz); |
switch (esc) { |
switch (esc) { |
case ESCAPE_UNICODE: |
case ESCAPE_UNICODE: |
Line 539 term_word(struct termp *p, const char *word) |
|
Line 676 term_word(struct termp *p, const char *word) |
|
case ESCAPE_SPECIAL: |
case ESCAPE_SPECIAL: |
uc = mchars_spec2cp(cp, sz); |
uc = mchars_spec2cp(cp, sz); |
break; |
break; |
|
case ESCAPE_UNDEF: |
|
uc = *seq; |
|
break; |
default: |
default: |
uc = -1; |
uc = -1; |
break; |
break; |
} |
} |
} else |
} else |
uc = *seq; |
uc = *cp; |
if (uc < 0x20 || (uc > 0x7E && uc < 0xA0)) |
if (uc < 0x20 || (uc > 0x7E && uc < 0xA0)) |
uc = '_'; |
uc = '_'; |
if (p->enc == TERMENC_ASCII) { |
if (p->enc == TERMENC_ASCII) { |
Line 797 term_strlen(const struct termp *p, const char *cp) |
|
Line 937 term_strlen(const struct termp *p, const char *cp) |
|
switch (*cp) { |
switch (*cp) { |
case '\\': |
case '\\': |
cp++; |
cp++; |
esc = mandoc_escape(&cp, &seq, &ssz); |
|
if (ESCAPE_ERROR == esc) |
|
continue; |
|
|
|
rhs = NULL; |
rhs = NULL; |
|
esc = mandoc_escape(&cp, &seq, &ssz); |
switch (esc) { |
switch (esc) { |
case ESCAPE_UNICODE: |
case ESCAPE_UNICODE: |
uc = mchars_num2uc(seq + 1, ssz - 1); |
uc = mchars_num2uc(seq + 1, ssz - 1); |
Line 823 term_strlen(const struct termp *p, const char *cp) |
|
Line 959 term_strlen(const struct termp *p, const char *cp) |
|
sz += cond_width(p, uc, &skip); |
sz += cond_width(p, uc, &skip); |
} |
} |
continue; |
continue; |
|
case ESCAPE_UNDEF: |
|
uc = *seq; |
|
break; |
|
case ESCAPE_DEVICE: |
|
if (p->type == TERMTYPE_PDF) { |
|
rhs = "pdf"; |
|
rsz = 3; |
|
} else if (p->type == TERMTYPE_PS) { |
|
rhs = "ps"; |
|
rsz = 2; |
|
} else if (p->enc == TERMENC_ASCII) { |
|
rhs = "ascii"; |
|
rsz = 5; |
|
} else { |
|
rhs = "utf8"; |
|
rsz = 4; |
|
} |
|
break; |
case ESCAPE_SKIPCHAR: |
case ESCAPE_SKIPCHAR: |
skip = 1; |
skip = 1; |
continue; |
continue; |
Line 934 term_vspan(const struct termp *p, const struct roffsu |
|
Line 1088 term_vspan(const struct termp *p, const struct roffsu |
|
} |
} |
|
|
/* |
/* |
* Convert a scaling width to basic units, rounding down. |
* Convert a scaling width to basic units, rounding towards 0. |
*/ |
*/ |
int |
int |
term_hspan(const struct termp *p, const struct roffsu *su) |
term_hspan(const struct termp *p, const struct roffsu *su) |
{ |
{ |
|
|
return (*p->hspan)(p, su); |
return (*p->hspan)(p, su); |
|
} |
|
|
|
/* |
|
* Convert a scaling width to basic units, rounding to closest. |
|
*/ |
|
int |
|
term_hen(const struct termp *p, const struct roffsu *su) |
|
{ |
|
int bu; |
|
|
|
if ((bu = (*p->hspan)(p, su)) >= 0) |
|
return (bu + 11) / 24; |
|
else |
|
return -((-bu + 11) / 24); |
} |
} |