mandoc/term.c - diff

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Diff for /mandoc/term.c between version 1.207 and 1.247

version 1.207, 2013/05/29 15:17:52

version 1.247, 2015/04/04 17:47:18

Line 1

/* $Id$ */

* Permission to use, copy, modify, and distribute this software for any

* purpose with or without fee is hereby granted, provided that the above

* copyright notice and this permission notice appear in all copies.

* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES

* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR

* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include <sys/types.h>

#include <assert.h>

#include <ctype.h>

#include <stdint.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include "mandoc.h"

#include "mandoc_aux.h"

#include "out.h"

#include "term.h"

#include "main.h"

static size_t cond_width(const struct termp *, int, int *);

static void adjbuf(struct termp *p, int);

static void adjbuf(struct termp *p, size_t);

static void bufferc(struct termp *, char);

static void encode(struct termp *, const char *, size_t);

static void encode1(struct termp *, int);

void

term_free(struct termp *p)

{

if (p->buf)

free(p->buf);

free(p->fontq);

if (p->symtab)

mchars_free(p->symtab);

free(p);

}

void

term_begin(struct termp *p, term_margin head,

term_margin foot, const void *arg)

term_margin foot, const struct roff_meta *arg)

{

p->headf = head;

Line 63 term_begin(struct termp *p, term_margin head,

Line 58 term_begin(struct termp *p, term_margin head,

(*p->begin)(p);

}

void

term_end(struct termp *p)

{

Line 72 term_end(struct termp *p)

Line 66 term_end(struct termp *p)

}

* Flush a line of text. A "line" is loosely defined as being something

* Flush a chunk of text. By default, break the output line each time

* that should be followed by a newline, regardless of whether it's

* the right margin is reached, and continue output on the next line

* broken apart by newlines getting there. A line can also be a

* at the same offset as the chunk itself. By default, also break the

* fragment of a columnar list (`Bl -tag' or `Bl -column'), which does

* output line at the end of the chunk.

* not have a trailing newline.

* The following flags may be specified:

* - TERMP_NOBREAK: this is the most important and is used when making

* - TERMP_NOBREAK: Do not break the output line at the right margin,

* columns. In short: don't print a newline and instead expect the

* but only at the max right margin. Also, do not break the output

* next call to do the padding up to the start of the next column.

* line at the end of the chunk, such that the next call can pad to

* the next column. However, if less than p->trailspace blanks,

* - TERMP_TWOSPACE: make sure there is room for at least two space

* which can be 0, 1, or 2, remain to the right margin, the line

* characters of padding. Otherwise, rather break the line.

* will be broken.

* - TERMP_BRIND: If the chunk does not fit and the output line has

* - TERMP_DANGLE: don't newline when TERMP_NOBREAK is specified and

* to be broken, start the next line at the right margin instead

* the line is overrun, and don't pad-right if it's underrun.

* of at the offset. Used together with TERMP_NOBREAK for the tags

* in various kinds of tagged lists.

* - TERMP_HANG: like TERMP_DANGLE, but doesn't newline when

* - TERMP_DANGLE: Do not break the output line at the right margin,

* overrunning, instead save the position and continue at that point

* append the next chunk after it even if this one is too long.

* when the next invocation.

* To be used together with TERMP_NOBREAK.

* - TERMP_HANG: Like TERMP_DANGLE, and also suppress padding before

* In-line line breaking:

* the next chunk if this column is not full.

* If TERMP_NOBREAK is specified and the line overruns the right

* margin, it will break and pad-right to the right margin after

* writing. If maxrmargin is violated, it will break and continue

* writing from the right-margin, which will lead to the above scenario

* upon exit. Otherwise, the line will break at the right margin.

void

term_flushln(struct termp *p)

{

int i; /* current input position in p->buf */

size_t i; /* current input position in p->buf */

int ntab; /* number of tabs to prepend */

size_t vis; /* current visual position on output */

size_t vbl; /* number of blanks to prepend to output */

size_t vend; /* end of word visual position on output */

size_t bp; /* visual right border position */

size_t dv; /* temporary for visual pos calculations */

int j; /* temporary loop index for p->buf */

size_t j; /* temporary loop index for p->buf */

int jhy; /* last hyph before overflow w/r/t j */

size_t jhy; /* last hyph before overflow w/r/t j */

size_t maxvis; /* output position of visible boundary */

size_t mmax; /* used in calculating bp */

* First, establish the maximum columns of "visible" content.

* This is usually the difference between the right-margin and

* an indentation, but can be, for tagged lists or columns, a

* small set of values.

* The following unsigned-signed subtractions look strange,

* but they are actually correct. If the int p->overstep

* is negative, it gets sign extended. Subtracting that

* very large size_t effectively adds a small number to dv.

assert (p->rmargin >= p->offset);

dv = p->rmargin > p->offset ? p->rmargin - p->offset : 0;

dv = p->rmargin - p->offset;

maxvis = (int)dv > p->overstep ? dv - (size_t)p->overstep : 0;

dv = p->maxrmargin - p->offset;

mmax = (int)dv > p->overstep ? dv - (size_t)p->overstep : 0;

bp = TERMP_NOBREAK & p->flags ? mmax : maxvis;

if (p->flags & TERMP_NOBREAK) {

dv = p->maxrmargin > p->offset ?

p->maxrmargin - p->offset : 0;

bp = (int)dv > p->overstep ?

dv - (size_t)p->overstep : 0;

} else

bp = maxvis;

* Calculate the required amount of padding.

Line 162 term_flushln(struct termp *p)

Line 155 term_flushln(struct termp *p)

for (j = i, jhy = 0; j < p->col; j++) {

if ((j && ' ' == p->buf[j]) || '\t' == p->buf[j])

if (' ' == p->buf[j] || '\t' == p->buf[j])

break;

/* Back over the the last printed character. */

Line 174 term_flushln(struct termp *p)

Line 167 term_flushln(struct termp *p)

/* Regular word. */

/* Break at the hyphen point if we overrun. */

if (vend > vis && vend < bp &&

ASCII_HYPH == p->buf[j])

(ASCII_HYPH == p->buf[j] ||

ASCII_BREAK == p->buf[j]))

jhy = j;

* Hyphenation now decided, put back a real

* hyphen such that we get the correct width.

if (ASCII_HYPH == p->buf[j])

p->buf[j] = '-';

vend += (*p->width)(p, p->buf[j]);

}

Line 189 term_flushln(struct termp *p)

Line 190 term_flushln(struct termp *p)

vend -= vis;

(*p->endline)(p);

p->viscol = 0;

if (TERMP_NOBREAK & p->flags) {

if (TERMP_BRIND & p->flags) {

vbl = p->rmargin;

vend += p->rmargin - p->offset;

vend += p->rmargin;

vend -= p->offset;

} else

vbl = p->offset;

Line 200 term_flushln(struct termp *p)

Line 202 term_flushln(struct termp *p)

if (0 < ntab)

vbl += ntab * p->tabwidth;

/* Remove the p->overstep width. */

* Remove the p->overstep width.

* Again, if p->overstep is negative,

* sign extension does the right thing.

bp += (size_t)p->overstep;

p->overstep = 0;

Line 214 term_flushln(struct termp *p)

Line 220 term_flushln(struct termp *p)

break;

if (' ' == p->buf[i]) {

j = i;

while (' ' == p->buf[i])

while (i < p->col && ' ' == p->buf[i])

i++;

dv = (size_t)(i - j) * (*p->width)(p, ' ');

dv = (i - j) * (*p->width)(p, ' ');

vbl += dv;

vend += dv;

break;

Line 225 term_flushln(struct termp *p)

Line 231 term_flushln(struct termp *p)

vbl += (*p->width)(p, ' ');

continue;

}

if (ASCII_BREAK == p->buf[i])

continue;

* Now we definitely know there will be

Line 237 term_flushln(struct termp *p)

Line 245 term_flushln(struct termp *p)

vbl = 0;

}

if (ASCII_HYPH == p->buf[i]) {

(*p->letter)(p, '-');

p->viscol += (*p->width)(p, '-');

continue;

}

(*p->letter)(p, p->buf[i]);

if (8 == p->buf[i])

p->viscol -= (*p->width)(p, p->buf[i-1]);

else

p->viscol += (*p->width)(p, p->buf[i]);

}

vis = vend;

Line 256 term_flushln(struct termp *p)

Line 258 term_flushln(struct termp *p)

* If there was trailing white space, it was not printed;

* so reset the cursor position accordingly.

if (vis)

if (vis > vbl)

vis -= vbl;

else

vis = 0;

p->col = 0;

p->overstep = 0;

Line 269 term_flushln(struct termp *p)

Line 273 term_flushln(struct termp *p)

}

if (TERMP_HANG & p->flags) {

/* We need one blank after the tag. */

p->overstep += (int)(p->offset + vis - p->rmargin +

p->overstep = (int)(vis - maxvis + (*p->width)(p, ' '));

p->trailspace * (*p->width)(p, ' '));

* If we have overstepped the margin, temporarily move

* it to the right and flag the rest of the line to be

* shorter.

* If there is a request to keep the columns together,

* allow negative overstep when the column is not full.

if (p->overstep < 0)

if (p->trailspace && p->overstep < 0)

p->overstep = 0;

return;

Line 285 term_flushln(struct termp *p)

Line 291 term_flushln(struct termp *p)

return;

/* If the column was overrun, break the line. */

if (maxvis <= vis +

if (maxvis < vis + p->trailspace * (*p->width)(p, ' ')) {

((TERMP_TWOSPACE & p->flags) ? (*p->width)(p, ' ') : 0)) {

(*p->endline)(p);

p->viscol = 0;

}

* A newline only breaks an existing line; it won't assert vertical

* space. All data in the output buffer is flushed prior to the newline

* assertion.

Line 307 term_newln(struct termp *p)

Line 311 term_newln(struct termp *p)

term_flushln(p);

}

* Asserts a vertical space (a full, empty line-break between lines).

* Note that if used twice, this will cause two blank spaces and so on.

Line 326 term_vspace(struct termp *p)

Line 329 term_vspace(struct termp *p)

(*p->endline)(p);

}

/* Swap current and previous font; for \fP and .ft P */

void

term_fontlast(struct termp *p)

{

Line 336 term_fontlast(struct termp *p)

Line 340 term_fontlast(struct termp *p)

p->fontq[p->fonti] = f;

}

/* Set font, save current, discard previous; for \f, .ft, .B etc. */

void

term_fontrepl(struct termp *p, enum termfont f)

{

Line 345 term_fontrepl(struct termp *p, enum termfont f)

Line 349 term_fontrepl(struct termp *p, enum termfont f)

p->fontq[p->fonti] = f;

}

/* Set font, save previous. */

void

term_fontpush(struct termp *p, enum termfont f)

{

assert(p->fonti + 1 < 10);

p->fontl = p->fontq[p->fonti];

p->fontq[++p->fonti] = f;

if (++p->fonti == p->fontsz) {

p->fontsz += 8;

p->fontq = mandoc_reallocarray(p->fontq,

p->fontsz, sizeof(enum termfont *));

}

p->fontq[p->fonti] = f;

}

/* Flush to make the saved pointer current again. */

const void *

term_fontq(struct termp *p)

{

return(&p->fontq[p->fonti]);

}

enum termfont

term_fonttop(struct termp *p)

{

return(p->fontq[p->fonti]);

}

void

term_fontpopq(struct termp *p, const void *key)

term_fontpopq(struct termp *p, int i)

{

while (p->fonti >= 0 && key < (void *)(p->fontq + p->fonti))

assert(i >= 0);

p->fonti--;

if (p->fonti > i)

assert(p->fonti >= 0);

p->fonti = i;

}

/* Pop one font off the stack. */

void

term_fontpop(struct termp *p)

{

Line 398 term_fontpop(struct termp *p)

Line 390 term_fontpop(struct termp *p)

void

term_word(struct termp *p, const char *word)

{

const char nbrsp[2] = { ASCII_NBRSP, 0 };

const char *seq, *cp;

char c;

int sz, uc;

size_t ssz;

enum mandoc_esc esc;

Line 420 term_word(struct termp *p, const char *word)

Line 412 term_word(struct termp *p, const char *word)

else

p->flags |= TERMP_NOSPACE;

p->flags &= ~(TERMP_SENTENCE | TERMP_IGNDELIM);

p->flags &= ~(TERMP_SENTENCE | TERMP_NONEWLINE);

p->skipvsp = 0;

while ('\0' != *word) {

if ('\\' != *word) {

Line 429 term_word(struct termp *p, const char *word)

Line 422 term_word(struct termp *p, const char *word)

word++;

continue;

}

ssz = strcspn(word, "\\");

if (TERMP_NBRWORD & p->flags) {

if (' ' == *word) {

encode(p, nbrsp, 1);

word++;

continue;

}

ssz = strcspn(word, "\\ ");

} else

ssz = strcspn(word, "\\");

encode(p, word, ssz);

word += (int)ssz;

continue;

Line 438 term_word(struct termp *p, const char *word)

Line 439 term_word(struct termp *p, const char *word)

word++;

esc = mandoc_escape(&word, &seq, &sz);

if (ESCAPE_ERROR == esc)

break;

continue;

if (TERMENC_ASCII != p->enc)

switch (esc) {

case (ESCAPE_UNICODE):

uc = mchars_num2uc(seq + 1, sz - 1);

if ('\0' == uc)

break;

encode1(p, uc);

continue;

case (ESCAPE_SPECIAL):

uc = mchars_spec2cp(p->symtab, seq, sz);

if (uc <= 0)

break;

encode1(p, uc);

continue;

default:

break;

}

switch (esc) {

case (ESCAPE_UNICODE):

case ESCAPE_UNICODE:

encode1(p, '?');

uc = mchars_num2uc(seq + 1, sz - 1);

break;

case (ESCAPE_NUMBERED):

case ESCAPE_NUMBERED:

c = mchars_num2char(seq, sz);

uc = mchars_num2char(seq, sz);

if ('\0' != c)

if (uc < 0)

encode(p, &c, 1);

continue;

break;

case (ESCAPE_SPECIAL):

case ESCAPE_SPECIAL:

cp = mchars_spec2str(p->symtab, seq, sz, &ssz);

if (p->enc == TERMENC_ASCII) {

if (NULL != cp)

cp = mchars_spec2str(p->symtab,

encode(p, cp, ssz);

seq, sz, &ssz);

else if (1 == ssz)

if (cp != NULL)

encode(p, seq, sz);

encode(p, cp, ssz);

break;

} else {

case (ESCAPE_FONTBOLD):

uc = mchars_spec2cp(p->symtab, seq, sz);

if (uc > 0)

encode1(p, uc);

}

continue;

case ESCAPE_FONTBOLD:

term_fontrepl(p, TERMFONT_BOLD);

break;

continue;

case (ESCAPE_FONTITALIC):

case ESCAPE_FONTITALIC:

term_fontrepl(p, TERMFONT_UNDER);

break;

continue;

case (ESCAPE_FONT):

case ESCAPE_FONTBI:

term_fontrepl(p, TERMFONT_BI);

continue;

case ESCAPE_FONT:

/* FALLTHROUGH */

case (ESCAPE_FONTROMAN):

case ESCAPE_FONTROMAN:

term_fontrepl(p, TERMFONT_NONE);

break;

continue;

case (ESCAPE_FONTPREV):

case ESCAPE_FONTPREV:

term_fontlast(p);

break;

continue;

case (ESCAPE_NOSPACE):

case ESCAPE_NOSPACE:

if (TERMP_SKIPCHAR & p->flags)

p->flags &= ~TERMP_SKIPCHAR;

else if ('\0' == *word)

p->flags |= TERMP_NOSPACE;

p->flags |= (TERMP_NOSPACE | TERMP_NONEWLINE);

break;

continue;

case (ESCAPE_SKIPCHAR):

case ESCAPE_SKIPCHAR:

p->flags |= TERMP_SKIPCHAR;

break;

continue;

case ESCAPE_OVERSTRIKE:

cp = seq + sz;

while (seq < cp) {

if (*seq == '\\') {

mandoc_escape(&seq, NULL, NULL);

continue;

}

encode1(p, *seq++);

if (seq < cp)

encode(p, "\b", 1);

}

default:

break;

continue;

}

* Common handling for Unicode and numbered

* character escape sequences.

if (p->enc == TERMENC_ASCII) {

cp = ascii_uc2str(uc);

encode(p, cp, strlen(cp));

} else {

if ((uc < 0x20 && uc != 0x09) ||

(uc > 0x7E && uc < 0xA0))

uc = 0xFFFD;

encode1(p, uc);

}

p->flags &= ~TERMP_NBRWORD;

}

static void

adjbuf(struct termp *p, int sz)

adjbuf(struct termp *p, size_t sz)

{

if (0 == p->maxcols)

Line 512 adjbuf(struct termp *p, int sz)

Line 530 adjbuf(struct termp *p, int sz)

while (sz >= p->maxcols)

p->maxcols <<= 2;

p->buf = mandoc_realloc

p->buf = mandoc_reallocarray(p->buf, p->maxcols, sizeof(int));

(p->buf, sizeof(int) * (size_t)p->maxcols);

}

static void

Line 541 encode1(struct termp *p, int c)

Line 558 encode1(struct termp *p, int c)

return;

}

if (p->col + 4 >= p->maxcols)

if (p->col + 6 >= p->maxcols)

adjbuf(p, p->col + 4);

adjbuf(p, p->col + 6);

f = term_fonttop(p);

f = p->fontq[p->fonti];

if (TERMFONT_NONE == f) {

if (TERMFONT_UNDER == f || TERMFONT_BI == f) {

p->buf[p->col++] = c;

return;

} else if (TERMFONT_UNDER == f) {

p->buf[p->col++] = '_';

} else

p->buf[p->col++] = 8;

p->buf[p->col++] = c;

}

if (TERMFONT_BOLD == f || TERMFONT_BI == f) {

p->buf[p->col++] = 8;

if (ASCII_HYPH == c)

p->buf[p->col++] = '-';

else

p->buf[p->col++] = c;

p->buf[p->col++] = 8;

}

p->buf[p->col++] = c;

}

static void

encode(struct termp *p, const char *word, size_t sz)

{

enum termfont f;

size_t i;

int i, len;

if (TERMP_SKIPCHAR & p->flags) {

p->flags &= ~TERMP_SKIPCHAR;

return;

}

/* LINTED */

len = sz;

* Encode and buffer a string of characters. If the current

* font mode is unset, buffer directly, else encode then buffer

* character by character.

if (TERMFONT_NONE == (f = term_fonttop(p))) {

if (p->fontq[p->fonti] == TERMFONT_NONE) {

if (p->col + len >= p->maxcols)

if (p->col + sz >= p->maxcols)

adjbuf(p, p->col + len);

adjbuf(p, p->col + sz);

for (i = 0; i < len; i++)

for (i = 0; i < sz; i++)

p->buf[p->col++] = word[i];

return;

}

/* Pre-buffer, assuming worst-case. */

if (p->col + 1 + (len * 3) >= p->maxcols)

if (p->col + 1 + (sz * 5) >= p->maxcols)

adjbuf(p, p->col + 1 + (len * 3));

adjbuf(p, p->col + 1 + (sz * 5));

for (i = 0; i < len; i++) {

for (i = 0; i < sz; i++) {

if (ASCII_HYPH != word[i] &&

if (ASCII_HYPH == word[i] ||

! isgraph((unsigned char)word[i])) {

isgraph((unsigned char)word[i]))

p->buf[p->col++] = word[i];

encode1(p, word[i]);

continue;

}

if (TERMFONT_UNDER == f)

p->buf[p->col++] = '_';

else if (ASCII_HYPH == word[i])

p->buf[p->col++] = '-';

else

p->buf[p->col++] = word[i];

}

p->buf[p->col++] = 8;

void

p->buf[p->col++] = word[i];

term_setwidth(struct termp *p, const char *wstr)

{

struct roffsu su;

int iop, width;

iop = 0;

width = 0;

if (NULL != wstr) {

switch (*wstr) {

case '+':

iop = 1;

wstr++;

break;

case '-':

iop = -1;

wstr++;

break;

default:

break;

}

if (a2roffsu(wstr, &su, SCALE_MAX))

width = term_hspan(p, &su);

else

iop = 0;

}

(*p->setwidth)(p, iop, width);

}

size_t

Line 632 size_t

Line 666 size_t

term_strlen(const struct termp *p, const char *cp)

{

size_t sz, rsz, i;

int ssz, skip, c;

int ssz, skip, uc;

const char *seq, *rhs;

enum mandoc_esc esc;

static const char rej[] = { '\\', ASCII_HYPH, ASCII_NBRSP, '\0' };

static const char rej[] = { '\\', ASCII_NBRSP, ASCII_HYPH,

ASCII_BREAK, '\0' };

* Account for escaped sequences within string length

Line 650 term_strlen(const struct termp *p, const char *cp)

Line 685 term_strlen(const struct termp *p, const char *cp)

for (i = 0; i < rsz; i++)

sz += cond_width(p, *cp++, &skip);

c = 0;

switch (*cp) {

case ('\\'):

case '\\':

cp++;

esc = mandoc_escape(&cp, &seq, &ssz);

if (ESCAPE_ERROR == esc)

return(sz);

continue;

if (TERMENC_ASCII != p->enc)

switch (esc) {

case (ESCAPE_UNICODE):

c = mchars_num2uc

(seq + 1, ssz - 1);

if ('\0' == c)

break;

sz += cond_width(p, c, &skip);

continue;

case (ESCAPE_SPECIAL):

c = mchars_spec2cp

(p->symtab, seq, ssz);

if (c <= 0)

break;

sz += cond_width(p, c, &skip);

continue;

default:

break;

}

rhs = NULL;

switch (esc) {

case (ESCAPE_UNICODE):

case ESCAPE_UNICODE:

sz += cond_width(p, '?', &skip);

uc = mchars_num2uc(seq + 1, ssz - 1);

break;

case (ESCAPE_NUMBERED):

case ESCAPE_NUMBERED:

c = mchars_num2char(seq, ssz);

uc = mchars_num2char(seq, ssz);

if ('\0' != c)

if (uc < 0)

sz += cond_width(p, c, &skip);

continue;

break;

case (ESCAPE_SPECIAL):

case ESCAPE_SPECIAL:

rhs = mchars_spec2str

if (p->enc == TERMENC_ASCII) {

(p->symtab, seq, ssz, &rsz);

rhs = mchars_spec2str(p->symtab,

seq, ssz, &rsz);

if (ssz != 1 || rhs)

if (rhs != NULL)

break;

} else {

rhs = seq;

uc = mchars_spec2cp(p->symtab,

rsz = ssz;

seq, ssz);

break;

if (uc > 0)

case (ESCAPE_SKIPCHAR):

sz += cond_width(p, uc, &skip);

}

continue;

case ESCAPE_SKIPCHAR:

skip = 1;

break;

continue;

case ESCAPE_OVERSTRIKE:

rsz = 0;

rhs = seq + ssz;

while (seq < rhs) {

if (*seq == '\\') {

mandoc_escape(&seq, NULL, NULL);

continue;

}

i = (*p->width)(p, *seq++);

if (rsz < i)

rsz = i;

}

sz += rsz;

continue;

default:

break;

continue;

}

if (NULL == rhs)

break;

* Common handling for Unicode and numbered

* character escape sequences.

if (rhs == NULL) {

if (p->enc == TERMENC_ASCII) {

rhs = ascii_uc2str(uc);

rsz = strlen(rhs);

} else {

if ((uc < 0x20 && uc != 0x09) ||

(uc > 0x7E && uc < 0xA0))

uc = 0xFFFD;

sz += cond_width(p, uc, &skip);

continue;

}

if (skip) {

skip = 0;

break;

}

* Common handling for all escape sequences

* printing more than one character.

for (i = 0; i < rsz; i++)

sz += (*p->width)(p, *rhs++);

break;

case (ASCII_NBRSP):

case ASCII_NBRSP:

sz += cond_width(p, ' ', &skip);

cp++;

break;

case (ASCII_HYPH):

case ASCII_HYPH:

sz += cond_width(p, '-', &skip);

cp++;

/* FALLTHROUGH */

case ASCII_BREAK:

break;

default:

break;

Line 733 term_strlen(const struct termp *p, const char *cp)

Line 786 term_strlen(const struct termp *p, const char *cp)

return(sz);

}

/* ARGSUSED */

int

size_t

term_vspan(const struct termp *p, const struct roffsu *su)

{

double r;

int ri;

switch (su->unit) {

case (SCALE_CM):

case SCALE_BU:

r = su->scale * 2;

r = su->scale / 40.0;

break;

case (SCALE_IN):

case SCALE_CM:

r = su->scale * 6;

r = su->scale * 6.0 / 2.54;

break;

case (SCALE_PC):

case SCALE_FS:

r = su->scale * 65536.0 / 40.0;

break;

case SCALE_IN:

r = su->scale * 6.0;

break;

case SCALE_MM:

r = su->scale * 0.006;

break;

case SCALE_PC:

r = su->scale;

break;

case (SCALE_PT):

case SCALE_PT:

r = su->scale / 8;

r = su->scale / 12.0;

break;

case (SCALE_MM):

case SCALE_EN:

r = su->scale / 1000;

/* FALLTHROUGH */

case SCALE_EM:

r = su->scale * 0.6;

break;

case (SCALE_VS):

case SCALE_VS:

r = su->scale;

break;

default:

r = su->scale - 1;

abort();

break;

/* NOTREACHED */

}

ri = r > 0.0 ? r + 0.4995 : r - 0.4995;

if (r < 0.0)

return(ri < 66 ? ri : 1);

r = 0.0;

return(/* LINTED */(size_t)

r);

}

size_t

* Convert a scaling width to basic units, rounding down.

int

term_hspan(const struct termp *p, const struct roffsu *su)

{

double v;

v = ((*p->hspan)(p, su));

return((*p->hspan)(p, su));

if (v < 0.0)

v = 0.0;

return((size_t) /* LINTED */

v);

}

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