version 1.126, 2009/11/12 05:58:30 |
version 1.181, 2011/03/22 10:13:01 |
|
|
/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv> |
|
* Copyright (c) 2010, 2011 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 |
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
*/ |
*/ |
|
#ifdef HAVE_CONFIG_H |
|
#include "config.h" |
|
#endif |
|
|
#include <sys/types.h> |
#include <sys/types.h> |
|
|
#include <assert.h> |
#include <assert.h> |
#include <ctype.h> |
#include <ctype.h> |
|
#include <stdint.h> |
#include <stdio.h> |
#include <stdio.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
#include <time.h> |
|
|
|
#include "chars.h" |
#include "mandoc.h" |
#include "out.h" |
#include "out.h" |
#include "term.h" |
#include "term.h" |
#include "man.h" |
|
#include "mdoc.h" |
|
#include "main.h" |
#include "main.h" |
|
|
static struct termp *term_alloc(enum termenc); |
static void spec(struct termp *, enum roffdeco, |
static void term_free(struct termp *); |
const char *, size_t); |
static void spec(struct termp *, const char *, size_t); |
|
static void res(struct termp *, const char *, size_t); |
static void res(struct termp *, const char *, size_t); |
static void buffera(struct termp *, const char *, size_t); |
|
static void bufferc(struct termp *, char); |
static void bufferc(struct termp *, char); |
static void adjbuf(struct termp *p, size_t); |
static void adjbuf(struct termp *p, size_t); |
static void encode(struct termp *, const char *, size_t); |
static void encode(struct termp *, const char *, size_t); |
|
|
|
|
void * |
void |
ascii_alloc(void) |
term_free(struct termp *p) |
{ |
{ |
|
|
return(term_alloc(TERMENC_ASCII)); |
if (p->buf) |
|
free(p->buf); |
|
if (p->symtab) |
|
chars_free(p->symtab); |
|
|
|
free(p); |
} |
} |
|
|
|
|
void |
void |
terminal_free(void *arg) |
term_begin(struct termp *p, term_margin head, |
|
term_margin foot, const void *arg) |
{ |
{ |
|
|
term_free((struct termp *)arg); |
p->headf = head; |
|
p->footf = foot; |
|
p->argf = arg; |
|
(*p->begin)(p); |
} |
} |
|
|
|
|
static void |
void |
term_free(struct termp *p) |
term_end(struct termp *p) |
{ |
{ |
|
|
if (p->buf) |
(*p->end)(p); |
free(p->buf); |
|
if (p->symtab) |
|
chars_free(p->symtab); |
|
|
|
free(p); |
|
} |
} |
|
|
|
|
static struct termp * |
struct termp * |
term_alloc(enum termenc enc) |
term_alloc(enum termenc enc) |
{ |
{ |
struct termp *p; |
struct termp *p; |
|
|
p = calloc(1, sizeof(struct termp)); |
p = mandoc_calloc(1, sizeof(struct termp)); |
if (NULL == p) { |
|
perror(NULL); |
|
exit(EXIT_FAILURE); |
|
} |
|
p->maxrmargin = 78; |
|
p->enc = enc; |
p->enc = enc; |
return(p); |
return(p); |
} |
} |
Line 89 term_alloc(enum termenc enc) |
|
Line 89 term_alloc(enum termenc enc) |
|
* Flush a line of text. A "line" is loosely defined as being something |
* Flush a line of text. A "line" is loosely defined as being something |
* that should be followed by a newline, regardless of whether it's |
* that should be followed by a newline, regardless of whether it's |
* broken apart by newlines getting there. A line can also be a |
* broken apart by newlines getting there. A line can also be a |
* fragment of a columnar list. |
* fragment of a columnar list (`Bl -tag' or `Bl -column'), which does |
|
* not have a trailing newline. |
* |
* |
* Specifically, a line is whatever's in p->buf of length p->col, which |
* The following flags may be specified: |
* is zeroed after this function returns. |
|
* |
* |
* The usage of termp:flags is as follows: |
|
* |
|
* - TERMP_NOLPAD: when beginning to write the line, don't left-pad the |
* - TERMP_NOLPAD: when beginning to write the line, don't left-pad the |
* offset value. This is useful when doing columnar lists where the |
* offset value. This is useful when doing columnar lists where the |
* prior column has right-padded. |
* prior column has right-padded. |
Line 128 term_flushln(struct termp *p) |
|
Line 126 term_flushln(struct termp *p) |
|
int i; /* current input position in p->buf */ |
int i; /* current input position in p->buf */ |
size_t vis; /* current visual position on output */ |
size_t vis; /* current visual position on output */ |
size_t vbl; /* number of blanks to prepend to output */ |
size_t vbl; /* number of blanks to prepend to output */ |
size_t vsz; /* visual characters to write to output */ |
size_t vend; /* end of word visual position on output */ |
size_t bp; /* visual right border position */ |
size_t bp; /* visual right border position */ |
int j; /* temporary loop index */ |
size_t dv; /* temporary for visual pos calculations */ |
size_t maxvis, mmax; |
int j; /* temporary loop index for p->buf */ |
static int overstep = 0; |
int 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. |
* First, establish the maximum columns of "visible" content. |
Line 140 term_flushln(struct termp *p) |
|
Line 140 term_flushln(struct termp *p) |
|
* an indentation, but can be, for tagged lists or columns, a |
* an indentation, but can be, for tagged lists or columns, a |
* small set of values. |
* small set of values. |
*/ |
*/ |
|
assert (p->rmargin >= p->offset); |
|
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; |
|
|
assert(p->offset < p->rmargin); |
|
|
|
maxvis = (int)(p->rmargin - p->offset) - overstep < 0 ? |
|
/* LINTED */ |
|
0 : p->rmargin - p->offset - overstep; |
|
mmax = (int)(p->maxrmargin - p->offset) - overstep < 0 ? |
|
/* LINTED */ |
|
0 : p->maxrmargin - p->offset - overstep; |
|
|
|
bp = TERMP_NOBREAK & p->flags ? mmax : maxvis; |
bp = TERMP_NOBREAK & p->flags ? mmax : maxvis; |
|
|
/* |
|
* FIXME: if bp is zero, we still output the first word before |
|
* breaking the line. |
|
*/ |
|
|
|
vis = 0; |
|
|
|
/* |
/* |
* If in the standard case (left-justified), then begin with our |
* Indent the first line of a paragraph. |
* indentation, otherwise (columns, etc.) just start spitting |
|
* out text. |
|
*/ |
*/ |
|
vbl = p->flags & TERMP_NOLPAD ? (size_t)0 : p->offset; |
|
|
if ( ! (p->flags & TERMP_NOLPAD)) |
vis = vend = 0; |
/* LINTED */ |
i = 0; |
for (j = 0; j < (int)p->offset; j++) |
|
putchar(' '); |
|
|
|
for (i = 0; i < (int)p->col; i++) { |
while (i < (int)p->col) { |
/* |
/* |
|
* Handle literal tab characters: collapse all |
|
* subsequent tabs into a single huge set of spaces. |
|
*/ |
|
while (i < (int)p->col && '\t' == p->buf[i]) { |
|
vend = (vis / p->tabwidth + 1) * p->tabwidth; |
|
vbl += vend - vis; |
|
vis = vend; |
|
i++; |
|
} |
|
|
|
/* |
* Count up visible word characters. Control sequences |
* Count up visible word characters. Control sequences |
* (starting with the CSI) aren't counted. A space |
* (starting with the CSI) aren't counted. A space |
* generates a non-printing word, which is valid (the |
* generates a non-printing word, which is valid (the |
* space is printed according to regular spacing rules). |
* space is printed according to regular spacing rules). |
*/ |
*/ |
|
|
/* LINTED */ |
for (j = i, jhy = 0; j < (int)p->col; j++) { |
for (j = i, vsz = 0; j < (int)p->col; j++) { |
if ((j && ' ' == p->buf[j]) || '\t' == p->buf[j]) |
if (j && ' ' == p->buf[j]) |
|
break; |
break; |
else if (8 == p->buf[j]) |
|
vsz--; |
/* Back over the the last printed character. */ |
else |
if (8 == p->buf[j]) { |
vsz++; |
assert(j); |
|
vend -= (*p->width)(p, p->buf[j - 1]); |
|
continue; |
|
} |
|
|
|
/* Regular word. */ |
|
/* Break at the hyphen point if we overrun. */ |
|
if (vend > vis && vend < bp && |
|
ASCII_HYPH == p->buf[j]) |
|
jhy = j; |
|
|
|
vend += (*p->width)(p, p->buf[j]); |
} |
} |
|
|
/* |
/* |
* Choose the number of blanks to prepend: no blank at the |
|
* beginning of a line, one between words -- but do not |
|
* actually write them yet. |
|
*/ |
|
vbl = (size_t)(0 == vis ? 0 : 1); |
|
|
|
/* |
|
* Find out whether we would exceed the right margin. |
* Find out whether we would exceed the right margin. |
* If so, break to the next line. (TODO: hyphenate) |
* If so, break to the next line. |
* Otherwise, write the chosen number of blanks now. |
|
*/ |
*/ |
if (vis && vis + vbl + vsz > bp) { |
if (vend > bp && 0 == jhy && vis > 0) { |
putchar('\n'); |
vend -= vis; |
|
(*p->endline)(p); |
if (TERMP_NOBREAK & p->flags) { |
if (TERMP_NOBREAK & p->flags) { |
for (j = 0; j < (int)p->rmargin; j++) |
p->viscol = p->rmargin; |
putchar(' '); |
(*p->advance)(p, p->rmargin); |
vis = p->rmargin - p->offset; |
vend += p->rmargin - p->offset; |
} else { |
} else { |
for (j = 0; j < (int)p->offset; j++) |
p->viscol = 0; |
putchar(' '); |
vbl = p->offset; |
vis = 0; |
|
} |
} |
/* Remove the overstep width. */ |
|
bp += (int)/* LINTED */ |
/* Remove the p->overstep width. */ |
overstep; |
|
overstep = 0; |
bp += (size_t)p->overstep; |
} else { |
p->overstep = 0; |
for (j = 0; j < (int)vbl; j++) |
|
putchar(' '); |
|
vis += vbl; |
|
} |
} |
|
|
/* |
/* Write out the [remaining] word. */ |
* Finally, write out the word. |
|
*/ |
|
for ( ; i < (int)p->col; i++) { |
for ( ; i < (int)p->col; i++) { |
if (' ' == p->buf[i]) |
if (vend > bp && jhy > 0 && i > jhy) |
break; |
break; |
|
if ('\t' == p->buf[i]) |
|
break; |
|
if (' ' == p->buf[i]) { |
|
j = i; |
|
while (' ' == p->buf[i]) |
|
i++; |
|
dv = (size_t)(i - j) * (*p->width)(p, ' '); |
|
vbl += dv; |
|
vend += dv; |
|
break; |
|
} |
|
if (ASCII_NBRSP == p->buf[i]) { |
|
vbl += (*p->width)(p, ' '); |
|
continue; |
|
} |
|
|
/* The unit sep. is a non-breaking space. */ |
/* |
if (31 == p->buf[i]) |
* Now we definitely know there will be |
putchar(' '); |
* printable characters to output, |
else |
* so write preceding white space now. |
putchar(p->buf[i]); |
*/ |
|
if (vbl) { |
|
(*p->advance)(p, vbl); |
|
p->viscol += vbl; |
|
vbl = 0; |
|
} |
|
|
|
if (ASCII_HYPH == p->buf[i]) { |
|
(*p->letter)(p, '-'); |
|
p->viscol += (*p->width)(p, '-'); |
|
} else { |
|
(*p->letter)(p, p->buf[i]); |
|
p->viscol += (*p->width)(p, p->buf[i]); |
|
} |
} |
} |
vis += vsz; |
vis = vend; |
} |
} |
|
|
|
/* |
|
* If there was trailing white space, it was not printed; |
|
* so reset the cursor position accordingly. |
|
*/ |
|
vis -= vbl; |
|
|
p->col = 0; |
p->col = 0; |
overstep = 0; |
p->overstep = 0; |
|
|
if ( ! (TERMP_NOBREAK & p->flags)) { |
if ( ! (TERMP_NOBREAK & p->flags)) { |
putchar('\n'); |
p->viscol = 0; |
|
(*p->endline)(p); |
return; |
return; |
} |
} |
|
|
if (TERMP_HANG & p->flags) { |
if (TERMP_HANG & p->flags) { |
/* We need one blank after the tag. */ |
/* We need one blank after the tag. */ |
overstep = /* LINTED */ |
p->overstep = (int)(vis - maxvis + (*p->width)(p, ' ')); |
vis - maxvis + 1; |
|
|
|
/* |
/* |
* Behave exactly the same way as groff: |
* Behave exactly the same way as groff: |
Line 260 term_flushln(struct termp *p) |
|
Line 288 term_flushln(struct termp *p) |
|
* move it one step LEFT and flag the rest of the line |
* move it one step LEFT and flag the rest of the line |
* to be longer. |
* to be longer. |
*/ |
*/ |
if (overstep >= -1) { |
if (p->overstep >= -1) { |
assert((int)maxvis + overstep >= 0); |
assert((int)maxvis + p->overstep >= 0); |
/* LINTED */ |
maxvis += (size_t)p->overstep; |
maxvis += overstep; |
|
} else |
} else |
overstep = 0; |
p->overstep = 0; |
|
|
} else if (TERMP_DANGLE & p->flags) |
} else if (TERMP_DANGLE & p->flags) |
return; |
return; |
|
|
/* Right-pad. */ |
/* Right-pad. */ |
if (maxvis > vis + /* LINTED */ |
if (maxvis > vis + |
((TERMP_TWOSPACE & p->flags) ? 1 : 0)) |
((TERMP_TWOSPACE & p->flags) ? (*p->width)(p, ' ') : 0)) { |
for ( ; vis < maxvis; vis++) |
p->viscol += maxvis - vis; |
putchar(' '); |
(*p->advance)(p, maxvis - vis); |
else { /* ...or newline break. */ |
vis += (maxvis - vis); |
putchar('\n'); |
} else { /* ...or newline break. */ |
for (i = 0; i < (int)p->rmargin; i++) |
(*p->endline)(p); |
putchar(' '); |
p->viscol = p->rmargin; |
|
(*p->advance)(p, p->rmargin); |
} |
} |
} |
} |
|
|
Line 293 term_newln(struct termp *p) |
|
Line 321 term_newln(struct termp *p) |
|
{ |
{ |
|
|
p->flags |= TERMP_NOSPACE; |
p->flags |= TERMP_NOSPACE; |
if (0 == p->col) { |
if (0 == p->col && 0 == p->viscol) { |
p->flags &= ~TERMP_NOLPAD; |
p->flags &= ~TERMP_NOLPAD; |
return; |
return; |
} |
} |
Line 313 term_vspace(struct termp *p) |
|
Line 341 term_vspace(struct termp *p) |
|
{ |
{ |
|
|
term_newln(p); |
term_newln(p); |
putchar('\n'); |
p->viscol = 0; |
|
(*p->endline)(p); |
} |
} |
|
|
|
|
static void |
static void |
spec(struct termp *p, const char *word, size_t len) |
numbered(struct termp *p, const char *word, size_t len) |
{ |
{ |
const char *rhs; |
const char *rhs; |
|
|
|
rhs = chars_num2char(word, len); |
|
if (rhs) |
|
encode(p, rhs, 1); |
|
} |
|
|
|
|
|
static void |
|
spec(struct termp *p, enum roffdeco d, const char *word, size_t len) |
|
{ |
|
const char *rhs; |
size_t sz; |
size_t sz; |
|
|
rhs = chars_a2ascii(p->symtab, word, len, &sz); |
rhs = chars_spec2str(p->symtab, word, len, &sz); |
if (rhs) |
if (rhs) |
encode(p, rhs, sz); |
encode(p, rhs, sz); |
|
else if (DECO_SSPECIAL == d) |
|
encode(p, word, len); |
} |
} |
|
|
|
|
Line 335 res(struct termp *p, const char *word, size_t len) |
|
Line 377 res(struct termp *p, const char *word, size_t len) |
|
const char *rhs; |
const char *rhs; |
size_t sz; |
size_t sz; |
|
|
rhs = chars_a2res(p->symtab, word, len, &sz); |
rhs = chars_res2str(p->symtab, word, len, &sz); |
if (rhs) |
if (rhs) |
encode(p, rhs, sz); |
encode(p, rhs, sz); |
} |
} |
|
|
term_word(struct termp *p, const char *word) |
term_word(struct termp *p, const char *word) |
{ |
{ |
const char *sv, *seq; |
const char *sv, *seq; |
int sz; |
|
size_t ssz; |
size_t ssz; |
enum roffdeco deco; |
enum roffdeco deco; |
|
|
sv = word; |
sv = word; |
|
|
if (word[0] && '\0' == word[1]) |
if (DELIM_CLOSE == mandoc_isdelim(word)) |
switch (word[0]) { |
if ( ! (TERMP_IGNDELIM & p->flags)) |
case('.'): |
p->flags |= TERMP_NOSPACE; |
/* FALLTHROUGH */ |
|
case(','): |
|
/* FALLTHROUGH */ |
|
case(';'): |
|
/* FALLTHROUGH */ |
|
case(':'): |
|
/* FALLTHROUGH */ |
|
case('?'): |
|
/* FALLTHROUGH */ |
|
case('!'): |
|
/* FALLTHROUGH */ |
|
case(')'): |
|
/* FALLTHROUGH */ |
|
case(']'): |
|
/* FALLTHROUGH */ |
|
case('}'): |
|
if ( ! (TERMP_IGNDELIM & p->flags)) |
|
p->flags |= TERMP_NOSPACE; |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
if ( ! (TERMP_NOSPACE & p->flags)) |
if ( ! (TERMP_NOSPACE & p->flags)) { |
bufferc(p, ' '); |
if ( ! (TERMP_KEEP & p->flags)) { |
|
if (TERMP_PREKEEP & p->flags) |
|
p->flags |= TERMP_KEEP; |
|
bufferc(p, ' '); |
|
if (TERMP_SENTENCE & p->flags) |
|
bufferc(p, ' '); |
|
} else |
|
bufferc(p, ASCII_NBRSP); |
|
} |
|
|
if ( ! (p->flags & TERMP_NONOSPACE)) |
if ( ! (p->flags & TERMP_NONOSPACE)) |
p->flags &= ~TERMP_NOSPACE; |
p->flags &= ~TERMP_NOSPACE; |
|
else |
|
p->flags |= TERMP_NOSPACE; |
|
|
/* FIXME: use strcspn. */ |
p->flags &= ~(TERMP_SENTENCE | TERMP_IGNDELIM); |
|
|
while (*word) { |
while (*word) { |
if ('\\' != *word) { |
if ((ssz = strcspn(word, "\\")) > 0) |
encode(p, word, 1); |
encode(p, word, ssz); |
word++; |
|
|
word += (int)ssz; |
|
if ('\\' != *word) |
continue; |
continue; |
} |
|
|
|
seq = ++word; |
seq = ++word; |
sz = a2roffdeco(&deco, &seq, &ssz); |
word += a2roffdeco(&deco, &seq, &ssz); |
|
|
switch (deco) { |
switch (deco) { |
|
case (DECO_NUMBERED): |
|
numbered(p, seq, ssz); |
|
break; |
case (DECO_RESERVED): |
case (DECO_RESERVED): |
res(p, seq, ssz); |
res(p, seq, ssz); |
break; |
break; |
case (DECO_SPECIAL): |
case (DECO_SPECIAL): |
spec(p, seq, ssz); |
/* FALLTHROUGH */ |
|
case (DECO_SSPECIAL): |
|
spec(p, deco, seq, ssz); |
break; |
break; |
case (DECO_BOLD): |
case (DECO_BOLD): |
term_fontrepl(p, TERMFONT_BOLD); |
term_fontrepl(p, TERMFONT_BOLD); |
Line 487 term_word(struct termp *p, const char *word) |
|
Line 522 term_word(struct termp *p, const char *word) |
|
default: |
default: |
break; |
break; |
} |
} |
word += sz; |
|
} |
|
|
|
if (sv[0] && 0 == sv[1]) |
if (DECO_NOSPACE == deco && '\0' == *word) |
switch (sv[0]) { |
|
case('('): |
|
/* FALLTHROUGH */ |
|
case('['): |
|
/* FALLTHROUGH */ |
|
case('{'): |
|
p->flags |= TERMP_NOSPACE; |
p->flags |= TERMP_NOSPACE; |
break; |
} |
default: |
|
break; |
if (DELIM_OPEN == mandoc_isdelim(sv)) |
} |
p->flags |= TERMP_NOSPACE; |
} |
} |
|
|
|
|
Line 514 adjbuf(struct termp *p, size_t sz) |
|
Line 541 adjbuf(struct termp *p, size_t sz) |
|
while (sz >= p->maxcols) |
while (sz >= p->maxcols) |
p->maxcols <<= 2; |
p->maxcols <<= 2; |
|
|
p->buf = realloc(p->buf, p->maxcols); |
p->buf = mandoc_realloc(p->buf, p->maxcols); |
if (NULL == p->buf) { |
|
perror(NULL); |
|
exit(EXIT_FAILURE); |
|
} |
|
} |
} |
|
|
|
|
static void |
static void |
buffera(struct termp *p, const char *word, size_t sz) |
|
{ |
|
|
|
if (p->col + sz >= p->maxcols) |
|
adjbuf(p, p->col + sz); |
|
|
|
memcpy(&p->buf[(int)p->col], word, sz); |
|
p->col += sz; |
|
} |
|
|
|
|
|
static void |
|
bufferc(struct termp *p, char c) |
bufferc(struct termp *p, char c) |
{ |
{ |
|
|
Line 558 encode(struct termp *p, const char *word, size_t sz) |
|
Line 569 encode(struct termp *p, const char *word, size_t sz) |
|
*/ |
*/ |
|
|
if (TERMFONT_NONE == (f = term_fonttop(p))) { |
if (TERMFONT_NONE == (f = term_fonttop(p))) { |
buffera(p, word, sz); |
if (p->col + sz >= p->maxcols) |
|
adjbuf(p, p->col + sz); |
|
memcpy(&p->buf[(int)p->col], word, sz); |
|
p->col += sz; |
return; |
return; |
} |
} |
|
|
|
/* Pre-buffer, assuming worst-case. */ |
|
|
|
if (p->col + 1 + (sz * 3) >= p->maxcols) |
|
adjbuf(p, p->col + 1 + (sz * 3)); |
|
|
for (i = 0; i < (int)sz; i++) { |
for (i = 0; i < (int)sz; i++) { |
if ( ! isgraph((u_char)word[i])) { |
if ( ! isgraph((u_char)word[i])) { |
bufferc(p, word[i]); |
p->buf[(int)p->col++] = word[i]; |
continue; |
continue; |
} |
} |
|
|
if (TERMFONT_UNDER == f) |
if (TERMFONT_UNDER == f) |
bufferc(p, '_'); |
p->buf[(int)p->col++] = '_'; |
else |
else |
bufferc(p, word[i]); |
p->buf[(int)p->col++] = word[i]; |
|
|
bufferc(p, 8); |
p->buf[(int)p->col++] = 8; |
bufferc(p, word[i]); |
p->buf[(int)p->col++] = word[i]; |
} |
} |
} |
} |
|
|
|
|
size_t |
size_t |
term_vspan(const struct roffsu *su) |
term_len(const struct termp *p, size_t sz) |
{ |
{ |
|
|
|
return((*p->width)(p, ' ') * sz); |
|
} |
|
|
|
|
|
size_t |
|
term_strlen(const struct termp *p, const char *cp) |
|
{ |
|
size_t sz, ssz, rsz, i; |
|
enum roffdeco d; |
|
const char *seq, *rhs; |
|
|
|
for (sz = 0; '\0' != *cp; ) |
|
/* |
|
* Account for escaped sequences within string length |
|
* calculations. This follows the logic in term_word() |
|
* as we must calculate the width of produced strings. |
|
*/ |
|
if ('\\' == *cp) { |
|
seq = ++cp; |
|
cp += a2roffdeco(&d, &seq, &ssz); |
|
|
|
switch (d) { |
|
case (DECO_RESERVED): |
|
rhs = chars_res2str |
|
(p->symtab, seq, ssz, &rsz); |
|
break; |
|
case (DECO_SPECIAL): |
|
/* FALLTHROUGH */ |
|
case (DECO_SSPECIAL): |
|
rhs = chars_spec2str |
|
(p->symtab, seq, ssz, &rsz); |
|
|
|
/* Allow for one-char escapes. */ |
|
if (DECO_SSPECIAL != d || rhs) |
|
break; |
|
|
|
rhs = seq; |
|
rsz = ssz; |
|
break; |
|
default: |
|
rhs = NULL; |
|
break; |
|
} |
|
|
|
if (rhs) |
|
for (i = 0; i < rsz; i++) |
|
sz += (*p->width)(p, *rhs++); |
|
} else if (ASCII_NBRSP == *cp) { |
|
sz += (*p->width)(p, ' '); |
|
cp++; |
|
} else if (ASCII_HYPH == *cp) { |
|
sz += (*p->width)(p, '-'); |
|
cp++; |
|
} else |
|
sz += (*p->width)(p, *cp++); |
|
|
|
return(sz); |
|
} |
|
|
|
|
|
/* ARGSUSED */ |
|
size_t |
|
term_vspan(const struct termp *p, const struct roffsu *su) |
|
{ |
double r; |
double r; |
|
|
switch (su->unit) { |
switch (su->unit) { |
Line 616 term_vspan(const struct roffsu *su) |
|
Line 700 term_vspan(const struct roffsu *su) |
|
|
|
|
|
size_t |
size_t |
term_hspan(const struct roffsu *su) |
term_hspan(const struct termp *p, const struct roffsu *su) |
{ |
{ |
double r; |
double v; |
|
|
/* XXX: CM, IN, and PT are approximations. */ |
v = ((*p->hspan)(p, su)); |
|
if (v < 0.0) |
switch (su->unit) { |
v = 0.0; |
case (SCALE_CM): |
return((size_t) /* LINTED */ |
r = 4 * su->scale; |
v); |
break; |
|
case (SCALE_IN): |
|
/* XXX: this is an approximation. */ |
|
r = 10 * su->scale; |
|
break; |
|
case (SCALE_PC): |
|
r = (10 * su->scale) / 6; |
|
break; |
|
case (SCALE_PT): |
|
r = (10 * su->scale) / 72; |
|
break; |
|
case (SCALE_MM): |
|
r = su->scale / 1000; /* FIXME: double-check. */ |
|
break; |
|
case (SCALE_VS): |
|
r = su->scale * 2 - 1; /* FIXME: double-check. */ |
|
break; |
|
default: |
|
r = su->scale; |
|
break; |
|
} |
|
|
|
if (r < 0.0) |
|
r = 0.0; |
|
return((size_t)/* LINTED */ |
|
r); |
|
} |
} |
|
|
|
|