version 1.6, 2009/02/21 21:00:06 |
version 1.270, 2017/06/14 01:31:27 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
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* Copyright (c) 2010-2017 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 |
* purpose with or without fee is hereby granted, provided that the above |
* above copyright notice and this permission notice appear in all |
* copyright notice and this permission notice appear in all copies. |
* copies. |
|
* |
* |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES |
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR |
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
* PERFORMANCE OF THIS SOFTWARE. |
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*/ |
*/ |
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#include "config.h" |
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#include <sys/types.h> |
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#include <assert.h> |
#include <assert.h> |
#include <ctype.h> |
#include <ctype.h> |
#include <err.h> |
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#include <stdlib.h> |
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#include <stdio.h> |
#include <stdio.h> |
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#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
#include <unistd.h> |
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#include "mandoc.h" |
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#include "mandoc_aux.h" |
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#include "out.h" |
#include "term.h" |
#include "term.h" |
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#include "main.h" |
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enum termstyle { |
static size_t cond_width(const struct termp *, int, int *); |
STYLE_CLEAR, |
static void adjbuf(struct termp_col *, size_t); |
STYLE_BOLD, |
static void bufferc(struct termp *, char); |
STYLE_UNDERLINE |
static void encode(struct termp *, const char *, size_t); |
}; |
static void encode1(struct termp *, int); |
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static void endline(struct termp *); |
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static void termprint_r(struct termp *, |
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const struct mdoc_meta *, |
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const struct mdoc_node *); |
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static void termprint_header(struct termp *, |
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const struct mdoc_meta *); |
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static void termprint_footer(struct termp *, |
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const struct mdoc_meta *); |
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static void pword(struct termp *, const char *, size_t); |
void |
static void pescape(struct termp *, |
term_setcol(struct termp *p, size_t maxtcol) |
const char *, size_t *, size_t); |
{ |
static void chara(struct termp *, char); |
if (maxtcol > p->maxtcol) { |
static void style(struct termp *, enum termstyle); |
p->tcols = mandoc_recallocarray(p->tcols, |
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p->maxtcol, maxtcol, sizeof(*p->tcols)); |
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p->maxtcol = maxtcol; |
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} |
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p->lasttcol = maxtcol - 1; |
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p->tcol = p->tcols; |
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} |
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void |
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term_free(struct termp *p) |
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{ |
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for (p->tcol = p->tcols; p->tcol < p->tcols + p->maxtcol; p->tcol++) |
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free(p->tcol->buf); |
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free(p->tcols); |
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free(p->fontq); |
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free(p); |
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} |
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void |
void |
flushln(struct termp *p) |
term_begin(struct termp *p, term_margin head, |
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term_margin foot, const struct roff_meta *arg) |
{ |
{ |
size_t i, j, vsz, vis, maxvis; |
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/* |
p->headf = head; |
* First, establish the maximum columns of "visible" content. |
p->footf = foot; |
* This is usually the difference between the right-margin and |
p->argf = arg; |
* an indentation, but can be, for tagged lists or columns, a |
(*p->begin)(p); |
* small set of values. |
} |
*/ |
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assert(p->offset < p->rmargin); |
void |
maxvis = p->rmargin - p->offset; |
term_end(struct termp *p) |
vis = 0; |
{ |
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/* |
(*p->end)(p); |
* If in the standard case (left-justified), then begin with our |
} |
* indentation, otherwise (columns, etc.) just start spitting |
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* out text. |
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*/ |
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if ( ! (p->flags & TERMP_NOLPAD)) |
/* |
/* LINTED */ |
* Flush a chunk of text. By default, break the output line each time |
for (j = 0; j < p->offset; j++) |
* the right margin is reached, and continue output on the next line |
putchar(' '); |
* at the same offset as the chunk itself. By default, also break the |
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* output line at the end of the chunk. |
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* The following flags may be specified: |
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* |
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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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*/ |
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void |
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term_flushln(struct termp *p) |
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{ |
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size_t vis; /* current visual position on output */ |
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size_t vbl; /* number of blanks to prepend to output */ |
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size_t vend; /* end of word visual position on output */ |
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size_t bp; /* visual right border position */ |
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size_t dv; /* temporary for visual pos calculations */ |
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size_t j; /* temporary loop index for p->tcol->buf */ |
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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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int breakline; /* after this word */ |
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for (i = 0; i < p->col; i++) { |
vbl = (p->flags & TERMP_NOPAD) || p->tcol->offset < p->viscol ? |
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0 : p->tcol->offset - p->viscol; |
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if (p->minbl && vbl < p->minbl) |
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vbl = p->minbl; |
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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) |
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p->tcol->col = 0; |
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while (p->tcol->col < p->tcol->lastcol) { |
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/* |
/* |
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* Handle literal tab characters: collapse all |
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* subsequent tabs into a single huge set of spaces. |
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*/ |
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ntab = 0; |
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while (p->tcol->col < p->tcol->lastcol && |
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p->tcol->buf[p->tcol->col] == '\t') { |
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vend = term_tab_next(vis); |
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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 |
* Count up visible word characters. Control sequences |
* (starting with the CSI) aren't counted. |
* (starting with the CSI) aren't counted. A space |
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* generates a non-printing word, which is valid (the |
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* space is printed according to regular spacing rules). |
*/ |
*/ |
assert( ! isspace(p->buf[i])); |
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/* LINTED */ |
jhy = 0; |
for (j = i, vsz = 0; j < p->col; j++) { |
breakline = 0; |
if (isspace(p->buf[j])) |
for (j = p->tcol->col; j < p->tcol->lastcol; j++) { |
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if (p->tcol->buf[j] == '\n') { |
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if ((p->flags & TERMP_BRIND) == 0) |
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breakline = 1; |
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continue; |
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} |
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if (p->tcol->buf[j] == ' ' || p->tcol->buf[j] == '\t') |
break; |
break; |
else if (27 == p->buf[j]) { |
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assert(j + 4 <= p->col); |
/* Back over the last printed character. */ |
j += 3; |
if (p->tcol->buf[j] == '\b') { |
} else |
assert(j); |
vsz++; |
vend -= (*p->width)(p, p->tcol->buf[j - 1]); |
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continue; |
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} |
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/* Regular word. */ |
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/* Break at the hyphen point if we overrun. */ |
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if (vend > vis && vend < bp && |
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(p->tcol->buf[j] == ASCII_HYPH|| |
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p->tcol->buf[j] == ASCII_BREAK)) |
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jhy = j; |
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/* |
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* 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]); |
} |
} |
assert(vsz > 0); |
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/* |
/* |
* If a word is too long and we're within a line, put it |
* Find out whether we would exceed the right margin. |
* on the next line. Puke if we're being asked to write |
* If so, break to the next line. |
* something that will exceed the right margin (i.e., |
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* from a fresh line or when we're not allowed to break |
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* the line with TERMP_NOBREAK). |
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*/ |
*/ |
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if (vis && vis + vsz >= maxvis) { |
if (vend > bp && jhy == 0 && vis > 0 && |
/* FIXME */ |
(p->flags & TERMP_BRNEVER) == 0) { |
if (p->flags & TERMP_NOBREAK) |
if (p->flags & TERMP_MULTICOL) |
errx(1, "word breaks right margin"); |
return; |
putchar('\n'); |
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for (j = 0; j < p->offset; j++) |
endline(p); |
putchar(' '); |
vend -= vis; |
vis = 0; |
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} else if (vis + vsz >= maxvis) { |
/* Use pending tabs on the new line. */ |
/* FIXME */ |
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errx(1, "word breaks right margin"); |
vbl = 0; |
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while (ntab--) |
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vbl = term_tab_next(vbl); |
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/* Re-establish indentation. */ |
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if (p->flags & TERMP_BRIND) |
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vbl += p->tcol->rmargin; |
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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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/* |
/* |
* Write out the word and a trailing space. Omit the |
* Write out the rest of the word. |
* space if we're the last word in the line. |
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*/ |
*/ |
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for ( ; i < p->col; i++) { |
for ( ; p->tcol->col < p->tcol->lastcol; p->tcol->col++) { |
if (isspace(p->buf[i])) |
if (vend > bp && jhy > 0 && p->tcol->col > jhy) |
break; |
break; |
putchar(p->buf[i]); |
if (p->tcol->buf[p->tcol->col] == '\n') |
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continue; |
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if (p->tcol->buf[p->tcol->col] == '\t') |
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break; |
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if (p->tcol->buf[p->tcol->col] == ' ') { |
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j = p->tcol->col; |
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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; |
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} |
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if (p->tcol->buf[p->tcol->col] == ASCII_NBRSP) { |
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vbl += (*p->width)(p, ' '); |
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continue; |
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} |
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if (p->tcol->buf[p->tcol->col] == ASCII_BREAK) |
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continue; |
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/* |
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* Now we definitely know there will be |
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* printable characters to output, |
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* so write preceding white space now. |
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*/ |
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if (vbl) { |
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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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(*p->letter)(p, p->tcol->buf[p->tcol->col]); |
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if (p->tcol->buf[p->tcol->col] == '\b') |
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p->viscol -= (*p->width)(p, |
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p->tcol->buf[p->tcol->col - 1]); |
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else |
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p->viscol += (*p->width)(p, |
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p->tcol->buf[p->tcol->col]); |
} |
} |
vis += vsz; |
vis = vend; |
if (i < p->col) { |
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putchar(' '); |
if (breakline == 0) |
vis++; |
continue; |
} |
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/* Explicitly requested output line break. */ |
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if (p->flags & TERMP_MULTICOL) |
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return; |
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endline(p); |
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breakline = 0; |
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vis = vend = 0; |
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/* Re-establish indentation. */ |
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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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/* |
/* |
* If we're not to right-marginalise it (newline), then instead |
* If there was trailing white space, it was not printed; |
* pad to the right margin and stay off. |
* so reset the cursor position accordingly. |
*/ |
*/ |
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if (p->flags & TERMP_NOBREAK) { |
if (vis > vbl) |
for ( ; vis <= maxvis; vis++) |
vis -= vbl; |
putchar(' '); |
else |
} else |
vis = 0; |
putchar('\n'); |
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p->col = 0; |
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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/* Trailing whitespace is significant in some columns. */ |
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if (vis && vbl && (TERMP_BRTRSP & p->flags)) |
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vis += vbl; |
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/* If the column was overrun, break the line. */ |
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if ((p->flags & TERMP_NOBREAK) == 0 || |
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((p->flags & TERMP_HANG) == 0 && |
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vis + p->trailspace * (*p->width)(p, ' ') > maxvis)) |
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endline(p); |
} |
} |
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static void |
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endline(struct termp *p) |
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{ |
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if ((p->flags & (TERMP_NEWMC | TERMP_ENDMC)) == TERMP_ENDMC) { |
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p->mc = NULL; |
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p->flags &= ~TERMP_ENDMC; |
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} |
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if (p->mc != NULL) { |
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if (p->viscol && p->maxrmargin >= p->viscol) |
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(*p->advance)(p, p->maxrmargin - p->viscol + 1); |
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p->flags |= TERMP_NOBUF | TERMP_NOSPACE; |
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term_word(p, p->mc); |
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p->flags &= ~(TERMP_NOBUF | TERMP_NEWMC); |
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} |
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p->viscol = 0; |
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p->minbl = 0; |
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(*p->endline)(p); |
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} |
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/* |
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* A newline only breaks an existing line; it won't assert vertical |
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* space. All data in the output buffer is flushed prior to the newline |
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* assertion. |
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*/ |
void |
void |
newln(struct termp *p) |
term_newln(struct termp *p) |
{ |
{ |
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/* |
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* A newline only breaks an existing line; it won't assert |
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* vertical space. |
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*/ |
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p->flags |= TERMP_NOSPACE; |
p->flags |= TERMP_NOSPACE; |
if (0 == p->col) |
if (p->tcol->lastcol || p->viscol) |
return; |
term_flushln(p); |
flushln(p); |
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} |
} |
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/* |
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* Asserts a vertical space (a full, empty line-break between lines). |
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* Note that if used twice, this will cause two blank spaces and so on. |
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* All data in the output buffer is flushed prior to the newline |
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* assertion. |
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*/ |
void |
void |
vspace(struct termp *p) |
term_vspace(struct termp *p) |
{ |
{ |
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/* |
term_newln(p); |
* Asserts a vertical space (a full, empty line-break between |
p->viscol = 0; |
* lines). |
p->minbl = 0; |
*/ |
if (0 < p->skipvsp) |
newln(p); |
p->skipvsp--; |
putchar('\n'); |
else |
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(*p->endline)(p); |
} |
} |
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/* Swap current and previous font; for \fP and .ft P */ |
static void |
void |
chara(struct termp *p, char c) |
term_fontlast(struct termp *p) |
{ |
{ |
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enum termfont f; |
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/* TODO: dynamically expand the buffer. */ |
f = p->fontl; |
if (p->col + 1 >= p->maxcols) |
p->fontl = p->fontq[p->fonti]; |
errx(1, "line overrun"); |
p->fontq[p->fonti] = f; |
p->buf[(p->col)++] = c; |
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} |
} |
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/* Set font, save current, discard previous; for \f, .ft, .B etc. */ |
static void |
void |
style(struct termp *p, enum termstyle esc) |
term_fontrepl(struct termp *p, enum termfont f) |
{ |
{ |
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if (p->col + 4 >= p->maxcols) |
p->fontl = p->fontq[p->fonti]; |
errx(1, "line overrun"); |
p->fontq[p->fonti] = f; |
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} |
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p->buf[(p->col)++] = 27; |
/* Set font, save previous. */ |
p->buf[(p->col)++] = '['; |
void |
switch (esc) { |
term_fontpush(struct termp *p, enum termfont f) |
case (STYLE_CLEAR): |
{ |
p->buf[(p->col)++] = '0'; |
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break; |
p->fontl = p->fontq[p->fonti]; |
case (STYLE_BOLD): |
if (++p->fonti == p->fontsz) { |
p->buf[(p->col)++] = '1'; |
p->fontsz += 8; |
break; |
p->fontq = mandoc_reallocarray(p->fontq, |
case (STYLE_UNDERLINE): |
p->fontsz, sizeof(*p->fontq)); |
p->buf[(p->col)++] = '4'; |
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break; |
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default: |
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abort(); |
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/* NOTREACHED */ |
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} |
} |
p->buf[(p->col)++] = 'm'; |
p->fontq[p->fonti] = f; |
} |
} |
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/* Flush to make the saved pointer current again. */ |
static void |
void |
pescape(struct termp *p, const char *word, size_t *i, size_t len) |
term_fontpopq(struct termp *p, int i) |
{ |
{ |
|
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(*i)++; |
assert(i >= 0); |
assert(*i < len); |
if (p->fonti > i) |
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p->fonti = i; |
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} |
|
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if ('(' == word[*i]) { |
/* Pop one font off the stack. */ |
/* Two-character escapes. */ |
void |
(*i)++; |
term_fontpop(struct termp *p) |
assert(*i + 1 < len); |
{ |
|
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if ('r' == word[*i] && 'B' == word[*i + 1]) |
assert(p->fonti); |
chara(p, ']'); |
p->fonti--; |
else if ('l' == word[*i] && 'B' == word[*i + 1]) |
} |
chara(p, '['); |
|
|
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(*i)++; |
/* |
return; |
* Handle pwords, partial words, which may be either a single word or a |
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* phrase that cannot be broken down (such as a literal string). This |
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* handles word styling. |
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*/ |
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void |
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term_word(struct termp *p, const char *word) |
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{ |
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struct roffsu su; |
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const char nbrsp[2] = { ASCII_NBRSP, 0 }; |
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const char *seq, *cp; |
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int sz, uc; |
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size_t csz, lsz, ssz; |
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enum mandoc_esc esc; |
|
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} else if ('[' != word[*i]) { |
if ((p->flags & TERMP_NOBUF) == 0) { |
/* One-character escapes. */ |
if ((p->flags & TERMP_NOSPACE) == 0) { |
switch (word[*i]) { |
if ((p->flags & TERMP_KEEP) == 0) { |
case ('\\'): |
bufferc(p, ' '); |
/* FALLTHROUGH */ |
if (p->flags & TERMP_SENTENCE) |
case ('\''): |
bufferc(p, ' '); |
/* FALLTHROUGH */ |
} else |
case ('`'): |
bufferc(p, ASCII_NBRSP); |
/* FALLTHROUGH */ |
|
case ('-'): |
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/* FALLTHROUGH */ |
|
case ('.'): |
|
chara(p, word[*i]); |
|
default: |
|
break; |
|
} |
} |
return; |
if (p->flags & TERMP_PREKEEP) |
|
p->flags |= TERMP_KEEP; |
|
if (p->flags & TERMP_NONOSPACE) |
|
p->flags |= TERMP_NOSPACE; |
|
else |
|
p->flags &= ~TERMP_NOSPACE; |
|
p->flags &= ~(TERMP_SENTENCE | TERMP_NONEWLINE); |
|
p->skipvsp = 0; |
} |
} |
/* n-character escapes. */ |
|
} |
|
|
|
|
while ('\0' != *word) { |
|
if ('\\' != *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; |
|
} |
|
|
static void |
word++; |
pword(struct termp *p, const char *word, size_t len) |
esc = mandoc_escape(&word, &seq, &sz); |
{ |
if (ESCAPE_ERROR == esc) |
size_t i; |
continue; |
|
|
assert(len > 0); |
switch (esc) { |
|
case ESCAPE_UNICODE: |
|
uc = mchars_num2uc(seq + 1, sz - 1); |
|
break; |
|
case ESCAPE_NUMBERED: |
|
uc = mchars_num2char(seq, sz); |
|
if (uc < 0) |
|
continue; |
|
break; |
|
case ESCAPE_SPECIAL: |
|
if (p->enc == TERMENC_ASCII) { |
|
cp = mchars_spec2str(seq, sz, &ssz); |
|
if (cp != NULL) |
|
encode(p, cp, ssz); |
|
} else { |
|
uc = mchars_spec2cp(seq, sz); |
|
if (uc > 0) |
|
encode1(p, uc); |
|
} |
|
continue; |
|
case ESCAPE_FONTBOLD: |
|
term_fontrepl(p, TERMFONT_BOLD); |
|
continue; |
|
case ESCAPE_FONTITALIC: |
|
term_fontrepl(p, TERMFONT_UNDER); |
|
continue; |
|
case ESCAPE_FONTBI: |
|
term_fontrepl(p, TERMFONT_BI); |
|
continue; |
|
case ESCAPE_FONT: |
|
case ESCAPE_FONTROMAN: |
|
term_fontrepl(p, TERMFONT_NONE); |
|
continue; |
|
case ESCAPE_FONTPREV: |
|
term_fontlast(p); |
|
continue; |
|
case ESCAPE_BREAK: |
|
bufferc(p, '\n'); |
|
continue; |
|
case ESCAPE_NOSPACE: |
|
if (p->flags & TERMP_BACKAFTER) |
|
p->flags &= ~TERMP_BACKAFTER; |
|
else if (*word == '\0') |
|
p->flags |= (TERMP_NOSPACE | TERMP_NONEWLINE); |
|
continue; |
|
case ESCAPE_HORIZ: |
|
if (a2roffsu(seq, &su, SCALE_EM) == NULL) |
|
continue; |
|
uc = term_hspan(p, &su) / 24; |
|
if (uc > 0) |
|
while (uc-- > 0) |
|
bufferc(p, ASCII_NBRSP); |
|
else if (p->col > (size_t)(-uc)) |
|
p->col += uc; |
|
else { |
|
uc += p->col; |
|
p->col = 0; |
|
if (p->tcol->offset > (size_t)(-uc)) { |
|
p->ti += uc; |
|
p->tcol->offset += uc; |
|
} else { |
|
p->ti -= p->tcol->offset; |
|
p->tcol->offset = 0; |
|
} |
|
} |
|
continue; |
|
case ESCAPE_HLINE: |
|
if ((seq = a2roffsu(seq, &su, SCALE_EM)) == NULL) |
|
continue; |
|
uc = term_hspan(p, &su) / 24; |
|
if (uc <= 0) { |
|
if (p->tcol->rmargin <= p->tcol->offset) |
|
continue; |
|
lsz = p->tcol->rmargin - p->tcol->offset; |
|
} else |
|
lsz = uc; |
|
if (*seq == '\0') |
|
uc = -1; |
|
else if (*seq == '\\') { |
|
seq++; |
|
esc = mandoc_escape(&seq, &cp, &sz); |
|
switch (esc) { |
|
case ESCAPE_UNICODE: |
|
uc = mchars_num2uc(cp + 1, sz - 1); |
|
break; |
|
case ESCAPE_NUMBERED: |
|
uc = mchars_num2char(cp, sz); |
|
break; |
|
case ESCAPE_SPECIAL: |
|
uc = mchars_spec2cp(cp, sz); |
|
break; |
|
default: |
|
uc = -1; |
|
break; |
|
} |
|
} else |
|
uc = *seq; |
|
if (uc < 0x20 || (uc > 0x7E && uc < 0xA0)) |
|
uc = '_'; |
|
if (p->enc == TERMENC_ASCII) { |
|
cp = ascii_uc2str(uc); |
|
csz = term_strlen(p, cp); |
|
ssz = strlen(cp); |
|
} else |
|
csz = (*p->width)(p, uc); |
|
while (lsz >= csz) { |
|
if (p->enc == TERMENC_ASCII) |
|
encode(p, cp, ssz); |
|
else |
|
encode1(p, uc); |
|
lsz -= csz; |
|
} |
|
continue; |
|
case ESCAPE_SKIPCHAR: |
|
p->flags |= TERMP_BACKAFTER; |
|
continue; |
|
case ESCAPE_OVERSTRIKE: |
|
cp = seq + sz; |
|
while (seq < cp) { |
|
if (*seq == '\\') { |
|
mandoc_escape(&seq, NULL, NULL); |
|
continue; |
|
} |
|
encode1(p, *seq++); |
|
if (seq < cp) { |
|
if (p->flags & TERMP_BACKBEFORE) |
|
p->flags |= TERMP_BACKAFTER; |
|
else |
|
p->flags |= TERMP_BACKBEFORE; |
|
} |
|
} |
|
/* Trim trailing backspace/blank pair. */ |
|
if (p->tcol->lastcol > 2 && |
|
(p->tcol->buf[p->tcol->lastcol - 1] == ' ' || |
|
p->tcol->buf[p->tcol->lastcol - 1] == '\t')) |
|
p->tcol->lastcol -= 2; |
|
if (p->col > p->tcol->lastcol) |
|
p->col = p->tcol->lastcol; |
|
continue; |
|
default: |
|
continue; |
|
} |
|
|
if ( ! (p->flags & TERMP_NOSPACE)) |
/* |
chara(p, ' '); |
* Common handling for Unicode and numbered |
|
* character escape sequences. |
|
*/ |
|
|
p->flags &= ~TERMP_NOSPACE; |
if (p->enc == TERMENC_ASCII) { |
|
cp = ascii_uc2str(uc); |
if (p->flags & TERMP_BOLD) |
encode(p, cp, strlen(cp)); |
style(p, STYLE_BOLD); |
} else { |
if (p->flags & TERMP_UNDERLINE) |
if ((uc < 0x20 && uc != 0x09) || |
style(p, STYLE_UNDERLINE); |
(uc > 0x7E && uc < 0xA0)) |
|
uc = 0xFFFD; |
for (i = 0; i < len; i++) { |
encode1(p, uc); |
if ('\\' == word[i]) { |
|
pescape(p, word, &i, len); |
|
continue; |
|
} |
} |
chara(p, word[i]); |
|
} |
} |
|
p->flags &= ~TERMP_NBRWORD; |
|
} |
|
|
if (p->flags & TERMP_BOLD || |
static void |
p->flags & TERMP_UNDERLINE) |
adjbuf(struct termp_col *c, size_t sz) |
style(p, STYLE_CLEAR); |
{ |
|
if (c->maxcols == 0) |
|
c->maxcols = 1024; |
|
while (c->maxcols <= sz) |
|
c->maxcols <<= 2; |
|
c->buf = mandoc_reallocarray(c->buf, c->maxcols, sizeof(*c->buf)); |
} |
} |
|
|
|
static void |
|
bufferc(struct termp *p, char c) |
|
{ |
|
if (p->flags & TERMP_NOBUF) { |
|
(*p->letter)(p, c); |
|
return; |
|
} |
|
if (p->col + 1 >= p->tcol->maxcols) |
|
adjbuf(p->tcol, p->col + 1); |
|
if (p->tcol->lastcol <= p->col || (c != ' ' && c != ASCII_NBRSP)) |
|
p->tcol->buf[p->col] = c; |
|
if (p->tcol->lastcol < ++p->col) |
|
p->tcol->lastcol = p->col; |
|
} |
|
|
void |
/* |
word(struct termp *p, const char *word) |
* See encode(). |
|
* Do this for a single (probably unicode) value. |
|
* Does not check for non-decorated glyphs. |
|
*/ |
|
static void |
|
encode1(struct termp *p, int c) |
{ |
{ |
size_t i, j, len; |
enum termfont f; |
|
|
if (mdoc_isdelim(word)) |
if (p->flags & TERMP_NOBUF) { |
p->flags |= TERMP_NOSPACE; |
(*p->letter)(p, c); |
|
return; |
|
} |
|
|
len = strlen(word); |
if (p->col + 7 >= p->tcol->maxcols) |
assert(len > 0); |
adjbuf(p->tcol, p->col + 7); |
|
|
/* LINTED */ |
f = (c == ASCII_HYPH || c > 127 || isgraph(c)) ? |
for (j = i = 0; i < len; i++) { |
p->fontq[p->fonti] : TERMFONT_NONE; |
if ( ! isspace(word[i])) { |
|
j++; |
if (p->flags & TERMP_BACKBEFORE) { |
continue; |
if (p->tcol->buf[p->col - 1] == ' ' || |
} |
p->tcol->buf[p->col - 1] == '\t') |
if (0 == j) |
p->col--; |
continue; |
else |
assert(i >= j); |
p->tcol->buf[p->col++] = '\b'; |
pword(p, &word[i - j], j); |
p->flags &= ~TERMP_BACKBEFORE; |
j = 0; |
|
} |
} |
if (j > 0) { |
if (f == TERMFONT_UNDER || f == TERMFONT_BI) { |
assert(i >= j); |
p->tcol->buf[p->col++] = '_'; |
pword(p, &word[i - j], j); |
p->tcol->buf[p->col++] = '\b'; |
} |
} |
|
if (f == TERMFONT_BOLD || f == TERMFONT_BI) { |
|
if (c == ASCII_HYPH) |
|
p->tcol->buf[p->col++] = '-'; |
|
else |
|
p->tcol->buf[p->col++] = c; |
|
p->tcol->buf[p->col++] = '\b'; |
|
} |
|
if (p->tcol->lastcol <= p->col || (c != ' ' && c != ASCII_NBRSP)) |
|
p->tcol->buf[p->col] = c; |
|
if (p->tcol->lastcol < ++p->col) |
|
p->tcol->lastcol = p->col; |
|
if (p->flags & TERMP_BACKAFTER) { |
|
p->flags |= TERMP_BACKBEFORE; |
|
p->flags &= ~TERMP_BACKAFTER; |
|
} |
} |
} |
|
|
|
|
static void |
static void |
termprint_r(struct termp *p, const struct mdoc_meta *meta, |
encode(struct termp *p, const char *word, size_t sz) |
const struct mdoc_node *node) |
|
{ |
{ |
int dochild; |
size_t i; |
|
|
/* Pre-processing. */ |
if (p->flags & TERMP_NOBUF) { |
|
for (i = 0; i < sz; i++) |
|
(*p->letter)(p, word[i]); |
|
return; |
|
} |
|
|
dochild = 1; |
if (p->col + 2 + (sz * 5) >= p->tcol->maxcols) |
|
adjbuf(p->tcol, p->col + 2 + (sz * 5)); |
|
|
if (MDOC_TEXT != node->type) { |
for (i = 0; i < sz; i++) { |
if (termacts[node->tok].pre) |
if (ASCII_HYPH == word[i] || |
if ( ! (*termacts[node->tok].pre)(p, meta, node)) |
isgraph((unsigned char)word[i])) |
dochild = 0; |
encode1(p, word[i]); |
} else /* MDOC_TEXT == node->type */ |
else { |
word(p, node->data.text.string); |
if (p->tcol->lastcol <= p->col || |
|
(word[i] != ' ' && word[i] != ASCII_NBRSP)) |
|
p->tcol->buf[p->col] = word[i]; |
|
p->col++; |
|
|
/* Children. */ |
/* |
|
* Postpone the effect of \z while handling |
|
* an overstrike sequence from ascii_uc2str(). |
|
*/ |
|
|
if (dochild && node->child) |
if (word[i] == '\b' && |
termprint_r(p, meta, node->child); |
(p->flags & TERMP_BACKBEFORE)) { |
|
p->flags &= ~TERMP_BACKBEFORE; |
|
p->flags |= TERMP_BACKAFTER; |
|
} |
|
} |
|
} |
|
if (p->tcol->lastcol < p->col) |
|
p->tcol->lastcol = p->col; |
|
} |
|
|
/* Post-processing. */ |
void |
|
term_setwidth(struct termp *p, const char *wstr) |
|
{ |
|
struct roffsu su; |
|
int iop, width; |
|
|
if (MDOC_TEXT != node->type) |
iop = 0; |
if (termacts[node->tok].post) |
width = 0; |
(*termacts[node->tok].post)(p, meta, node); |
if (NULL != wstr) { |
|
switch (*wstr) { |
|
case '+': |
|
iop = 1; |
|
wstr++; |
|
break; |
|
case '-': |
|
iop = -1; |
|
wstr++; |
|
break; |
|
default: |
|
break; |
|
} |
|
if (a2roffsu(wstr, &su, SCALE_MAX) != NULL) |
|
width = term_hspan(p, &su); |
|
else |
|
iop = 0; |
|
} |
|
(*p->setwidth)(p, iop, width); |
|
} |
|
|
/* Siblings. */ |
size_t |
|
term_len(const struct termp *p, size_t sz) |
|
{ |
|
|
if (node->next) |
return (*p->width)(p, ' ') * sz; |
termprint_r(p, meta, node->next); |
|
} |
} |
|
|
|
static size_t |
static void |
cond_width(const struct termp *p, int c, int *skip) |
termprint_footer(struct termp *p, const struct mdoc_meta *meta) |
|
{ |
{ |
struct tm *tm; |
|
char *buf, *os; |
|
size_t sz, osz, ssz, i; |
|
|
|
if (NULL == (buf = malloc(p->rmargin))) |
if (*skip) { |
err(1, "malloc"); |
(*skip) = 0; |
if (NULL == (os = malloc(p->rmargin))) |
return 0; |
err(1, "malloc"); |
} else |
|
return (*p->width)(p, c); |
|
} |
|
|
tm = localtime(&meta->date); |
size_t |
if (NULL == strftime(buf, p->rmargin, "%B %d, %Y", tm)) |
term_strlen(const struct termp *p, const char *cp) |
err(1, "strftime"); |
{ |
|
size_t sz, rsz, i; |
|
int ssz, skip, uc; |
|
const char *seq, *rhs; |
|
enum mandoc_esc esc; |
|
static const char rej[] = { '\\', ASCII_NBRSP, ASCII_HYPH, |
|
ASCII_BREAK, '\0' }; |
|
|
osz = strlcpy(os, meta->os, p->rmargin); |
/* |
|
* Account for escaped sequences within string length |
|
* calculations. This follows the logic in term_word() as we |
|
* must calculate the width of produced strings. |
|
*/ |
|
|
sz = strlen(buf); |
sz = 0; |
ssz = sz + osz + 1; |
skip = 0; |
|
while ('\0' != *cp) { |
|
rsz = strcspn(cp, rej); |
|
for (i = 0; i < rsz; i++) |
|
sz += cond_width(p, *cp++, &skip); |
|
|
if (ssz > p->rmargin) { |
switch (*cp) { |
ssz -= p->rmargin; |
case '\\': |
assert(ssz <= osz); |
cp++; |
os[osz - ssz] = 0; |
esc = mandoc_escape(&cp, &seq, &ssz); |
ssz = 1; |
if (ESCAPE_ERROR == esc) |
} else |
continue; |
ssz = p->rmargin - ssz + 1; |
|
|
|
printf("\n"); |
rhs = NULL; |
printf("%s", os); |
|
for (i = 0; i < ssz; i++) |
|
printf(" "); |
|
|
|
printf("%s\n", buf); |
switch (esc) { |
fflush(stdout); |
case ESCAPE_UNICODE: |
|
uc = mchars_num2uc(seq + 1, ssz - 1); |
|
break; |
|
case ESCAPE_NUMBERED: |
|
uc = mchars_num2char(seq, ssz); |
|
if (uc < 0) |
|
continue; |
|
break; |
|
case ESCAPE_SPECIAL: |
|
if (p->enc == TERMENC_ASCII) { |
|
rhs = mchars_spec2str(seq, ssz, &rsz); |
|
if (rhs != NULL) |
|
break; |
|
} else { |
|
uc = mchars_spec2cp(seq, ssz); |
|
if (uc > 0) |
|
sz += cond_width(p, uc, &skip); |
|
} |
|
continue; |
|
case ESCAPE_SKIPCHAR: |
|
skip = 1; |
|
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: |
|
continue; |
|
} |
|
|
free(buf); |
/* |
free(os); |
* 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; |
|
} |
|
} |
|
|
static void |
if (skip) { |
termprint_header(struct termp *p, const struct mdoc_meta *meta) |
skip = 0; |
{ |
break; |
char *buf, *title; |
} |
const char *pp, *msec; |
|
size_t ssz, tsz, ttsz, i;; |
|
|
|
if (NULL == (buf = malloc(p->rmargin))) |
/* |
err(1, "malloc"); |
* Common handling for all escape sequences |
if (NULL == (title = malloc(p->rmargin))) |
* printing more than one character. |
err(1, "malloc"); |
*/ |
|
|
if (NULL == (pp = mdoc_vol2a(meta->vol))) |
for (i = 0; i < rsz; i++) |
switch (meta->msec) { |
sz += (*p->width)(p, *rhs++); |
case (MSEC_1): |
|
/* FALLTHROUGH */ |
|
case (MSEC_6): |
|
/* FALLTHROUGH */ |
|
case (MSEC_7): |
|
pp = mdoc_vol2a(VOL_URM); |
|
break; |
break; |
case (MSEC_8): |
case ASCII_NBRSP: |
pp = mdoc_vol2a(VOL_SMM); |
sz += cond_width(p, ' ', &skip); |
|
cp++; |
break; |
break; |
case (MSEC_2): |
case ASCII_HYPH: |
/* FALLTHROUGH */ |
sz += cond_width(p, '-', &skip); |
case (MSEC_3): |
cp++; |
/* FALLTHROUGH */ |
|
case (MSEC_4): |
|
/* FALLTHROUGH */ |
|
case (MSEC_5): |
|
pp = mdoc_vol2a(VOL_PRM); |
|
break; |
break; |
case (MSEC_9): |
|
pp = mdoc_vol2a(VOL_KM); |
|
break; |
|
default: |
default: |
/* FIXME: capitalise. */ |
|
if (NULL == (pp = mdoc_msec2a(meta->msec))) |
|
pp = mdoc_msec2a(MSEC_local); |
|
break; |
break; |
} |
} |
assert(pp); |
|
|
|
tsz = strlcpy(buf, pp, p->rmargin); |
|
assert(tsz < p->rmargin); |
|
|
|
if ((pp = mdoc_arch2a(meta->arch))) { |
|
tsz = strlcat(buf, " (", p->rmargin); |
|
assert(tsz < p->rmargin); |
|
tsz = strlcat(buf, pp, p->rmargin); |
|
assert(tsz < p->rmargin); |
|
tsz = strlcat(buf, ")", p->rmargin); |
|
assert(tsz < p->rmargin); |
|
} |
} |
|
|
ttsz = strlcpy(title, meta->title, p->rmargin); |
return sz; |
|
|
if (NULL == (msec = mdoc_msec2a(meta->msec))) |
|
msec = ""; |
|
|
|
ssz = (2 * (ttsz + 2 + strlen(msec))) + tsz + 2; |
|
|
|
if (ssz > p->rmargin) { |
|
if ((ssz -= p->rmargin) % 2) |
|
ssz++; |
|
ssz /= 2; |
|
|
|
assert(ssz <= ttsz); |
|
title[ttsz - ssz] = 0; |
|
ssz = 1; |
|
} else |
|
ssz = ((p->rmargin - ssz) / 2) + 1; |
|
|
|
printf("%s(%s)", title, msec); |
|
|
|
for (i = 0; i < ssz; i++) |
|
printf(" "); |
|
|
|
printf("%s", buf); |
|
|
|
for (i = 0; i < ssz; i++) |
|
printf(" "); |
|
|
|
printf("%s(%s)\n", title, msec); |
|
fflush(stdout); |
|
|
|
free(title); |
|
free(buf); |
|
} |
} |
|
|
|
int |
void |
term_vspan(const struct termp *p, const struct roffsu *su) |
termprint(const struct mdoc_node *node, |
|
const struct mdoc_meta *meta) |
|
{ |
{ |
struct termp p; |
double r; |
|
int ri; |
|
|
p.maxrmargin = 80; /* XXX */ |
switch (su->unit) { |
p.rmargin = p.maxrmargin; |
case SCALE_BU: |
p.maxcols = 1024; |
r = su->scale / 40.0; |
p.offset = p.col = 0; |
break; |
p.flags = TERMP_NOSPACE; |
case SCALE_CM: |
|
r = su->scale * 6.0 / 2.54; |
if (NULL == (p.buf = malloc(p.maxcols))) |
break; |
err(1, "malloc"); |
case SCALE_FS: |
|
r = su->scale * 65536.0 / 40.0; |
termprint_header(&p, meta); |
break; |
termprint_r(&p, meta, node); |
case SCALE_IN: |
termprint_footer(&p, meta); |
r = su->scale * 6.0; |
|
break; |
free(p.buf); |
case SCALE_MM: |
|
r = su->scale * 0.006; |
|
break; |
|
case SCALE_PC: |
|
r = su->scale; |
|
break; |
|
case SCALE_PT: |
|
r = su->scale / 12.0; |
|
break; |
|
case SCALE_EN: |
|
case SCALE_EM: |
|
r = su->scale * 0.6; |
|
break; |
|
case SCALE_VS: |
|
r = su->scale; |
|
break; |
|
default: |
|
abort(); |
|
} |
|
ri = r > 0.0 ? r + 0.4995 : r - 0.4995; |
|
return ri < 66 ? ri : 1; |
} |
} |
|
|
|
/* |
|
* Convert a scaling width to basic units, rounding down. |
|
*/ |
|
int |
|
term_hspan(const struct termp *p, const struct roffsu *su) |
|
{ |
|
|
|
return (*p->hspan)(p, su); |
|
} |