version 1.6, 2009/02/21 21:00:06 |
version 1.120, 2009/10/31 06:10:58 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se> |
* |
* |
* 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 AUTHOR DISCLAIMS 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 AUTHOR 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. |
|
*/ |
*/ |
#include <assert.h> |
#include <assert.h> |
#include <ctype.h> |
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#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> |
#include <time.h> |
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#include "chars.h" |
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#include "out.h" |
#include "term.h" |
#include "term.h" |
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#include "man.h" |
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#include "mdoc.h" |
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#include "main.h" |
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enum termstyle { |
/* FIXME: accomodate non-breaking, non-collapsing white-space. */ |
STYLE_CLEAR, |
/* FIXME: accomodate non-breaking, collapsing white-space. */ |
STYLE_BOLD, |
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STYLE_UNDERLINE |
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}; |
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static void termprint_r(struct termp *, |
static struct termp *term_alloc(enum termenc); |
const struct mdoc_meta *, |
static void term_free(struct termp *); |
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); |
static void do_escaped(struct termp *, const char **); |
static void pescape(struct termp *, |
static void do_special(struct termp *, |
const char *, size_t *, size_t); |
const char *, size_t); |
static void chara(struct termp *, char); |
static void do_reserved(struct termp *, |
static void style(struct termp *, enum termstyle); |
const char *, size_t); |
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static void buffer(struct termp *, char); |
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static void encode(struct termp *, char); |
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void * |
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ascii_alloc(void) |
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{ |
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return(term_alloc(TERMENC_ASCII)); |
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} |
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void |
void |
flushln(struct termp *p) |
terminal_free(void *arg) |
{ |
{ |
size_t i, j, vsz, vis, maxvis; |
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term_free((struct termp *)arg); |
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} |
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static void |
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term_free(struct termp *p) |
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{ |
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if (p->buf) |
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free(p->buf); |
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if (p->symtab) |
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chars_free(p->symtab); |
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free(p); |
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} |
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static struct termp * |
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term_alloc(enum termenc enc) |
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{ |
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struct termp *p; |
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p = calloc(1, sizeof(struct termp)); |
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if (NULL == p) { |
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perror(NULL); |
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exit(EXIT_FAILURE); |
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} |
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p->maxrmargin = 78; |
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p->enc = enc; |
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return(p); |
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} |
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/* |
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* Flush a line of text. A "line" is loosely defined as being something |
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* that should be followed by a newline, regardless of whether it's |
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* broken apart by newlines getting there. A line can also be a |
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* fragment of a columnar list. |
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* |
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* Specifically, a line is whatever's in p->buf of length p->col, which |
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* is zeroed after this function returns. |
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* |
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* The usage of termp:flags is as follows: |
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* |
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* - TERMP_NOLPAD: when beginning to write the line, don't left-pad the |
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* offset value. This is useful when doing columnar lists where the |
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* prior column has right-padded. |
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* |
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* - TERMP_NOBREAK: this is the most important and is used when making |
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* columns. In short: don't print a newline and instead pad to the |
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* right margin. Used in conjunction with TERMP_NOLPAD. |
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* |
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* - TERMP_TWOSPACE: when padding, make sure there are at least two |
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* space characters of padding. Otherwise, rather break the line. |
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* |
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* - TERMP_DANGLE: don't newline when TERMP_NOBREAK is specified and |
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* the line is overrun, and don't pad-right if it's underrun. |
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* |
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* - TERMP_HANG: like TERMP_DANGLE, but doesn't newline when |
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* overruning, instead save the position and continue at that point |
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* when the next invocation. |
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* |
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* In-line line breaking: |
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* |
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* If TERMP_NOBREAK is specified and the line overruns the right |
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* margin, it will break and pad-right to the right margin after |
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* writing. If maxrmargin is violated, it will break and continue |
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* writing from the right-margin, which will lead to the above scenario |
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* upon exit. Otherwise, the line will break at the right margin. |
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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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int i; /* current input position in p->buf */ |
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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 vsz; /* visual characters to write to output */ |
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size_t bp; /* visual right border position */ |
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int j; /* temporary loop index */ |
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size_t maxvis, mmax; |
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static int overstep = 0; |
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/* |
/* |
* First, establish the maximum columns of "visible" content. |
* First, establish the maximum columns of "visible" content. |
* This is usually the difference between the right-margin and |
* This is usually the difference between the right-margin and |
* 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. |
*/ |
*/ |
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assert(p->offset < p->rmargin); |
assert(p->offset < p->rmargin); |
maxvis = p->rmargin - p->offset; |
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maxvis = (int)(p->rmargin - p->offset) - overstep < 0 ? |
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/* LINTED */ |
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0 : p->rmargin - p->offset - overstep; |
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mmax = (int)(p->maxrmargin - p->offset) - overstep < 0 ? |
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/* LINTED */ |
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0 : p->maxrmargin - p->offset - overstep; |
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bp = TERMP_NOBREAK & p->flags ? mmax : maxvis; |
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/* |
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* FIXME: if bp is zero, we still output the first word before |
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* breaking the line. |
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*/ |
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vis = 0; |
vis = 0; |
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/* |
/* |
Line 71 flushln(struct termp *p) |
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Line 169 flushln(struct termp *p) |
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if ( ! (p->flags & TERMP_NOLPAD)) |
if ( ! (p->flags & TERMP_NOLPAD)) |
/* LINTED */ |
/* LINTED */ |
for (j = 0; j < p->offset; j++) |
for (j = 0; j < (int)p->offset; j++) |
putchar(' '); |
putchar(' '); |
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for (i = 0; i < p->col; i++) { |
for (i = 0; i < (int)p->col; i++) { |
/* |
/* |
* 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 */ |
/* LINTED */ |
for (j = i, vsz = 0; j < p->col; j++) { |
for (j = i, vsz = 0; j < (int)p->col; j++) { |
if (isspace(p->buf[j])) |
if (j && ' ' == p->buf[j]) |
break; |
break; |
else if (27 == p->buf[j]) { |
else if (8 == p->buf[j]) |
assert(j + 4 <= p->col); |
vsz--; |
j += 3; |
else |
} else |
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vsz++; |
vsz++; |
} |
} |
assert(vsz > 0); |
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/* |
/* |
* If a word is too long and we're within a line, put it |
* Choose the number of blanks to prepend: no blank at the |
* on the next line. Puke if we're being asked to write |
* beginning of a line, one between words -- but do not |
* something that will exceed the right margin (i.e., |
* actually write them yet. |
* 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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vbl = (size_t)(0 == vis ? 0 : 1); |
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if (vis && vis + vsz >= maxvis) { |
/* |
/* FIXME */ |
* Find out whether we would exceed the right margin. |
if (p->flags & TERMP_NOBREAK) |
* If so, break to the next line. (TODO: hyphenate) |
errx(1, "word breaks right margin"); |
* Otherwise, write the chosen number of blanks now. |
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*/ |
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if (vis && vis + vbl + vsz > bp) { |
putchar('\n'); |
putchar('\n'); |
for (j = 0; j < p->offset; j++) |
if (TERMP_NOBREAK & p->flags) { |
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for (j = 0; j < (int)p->rmargin; j++) |
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putchar(' '); |
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vis = p->rmargin - p->offset; |
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} else { |
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for (j = 0; j < (int)p->offset; j++) |
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putchar(' '); |
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vis = 0; |
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} |
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/* Remove the overstep width. */ |
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bp += (int)/* LINTED */ |
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overstep; |
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overstep = 0; |
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} else { |
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for (j = 0; j < (int)vbl; j++) |
putchar(' '); |
putchar(' '); |
vis = 0; |
vis += vbl; |
} else if (vis + vsz >= maxvis) { |
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/* FIXME */ |
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errx(1, "word breaks right margin"); |
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} |
} |
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/* |
/* |
* Write out the word and a trailing space. Omit the |
* Finally, write out the word. |
* space if we're the last word in the line. |
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*/ |
*/ |
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for ( ; i < (int)p->col; i++) { |
for ( ; i < p->col; i++) { |
if (' ' == p->buf[i]) |
if (isspace(p->buf[i])) |
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break; |
break; |
putchar(p->buf[i]); |
putchar(p->buf[i]); |
} |
} |
vis += vsz; |
vis += vsz; |
if (i < p->col) { |
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putchar(' '); |
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vis++; |
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} |
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} |
} |
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/* |
p->col = 0; |
* If we're not to right-marginalise it (newline), then instead |
overstep = 0; |
* pad to the right margin and stay off. |
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*/ |
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if (p->flags & TERMP_NOBREAK) { |
if ( ! (TERMP_NOBREAK & p->flags)) { |
for ( ; vis <= maxvis; vis++) |
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putchar(' '); |
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} else |
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putchar('\n'); |
putchar('\n'); |
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return; |
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} |
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p->col = 0; |
if (TERMP_HANG & p->flags) { |
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/* We need one blank after the tag. */ |
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overstep = /* LINTED */ |
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vis - maxvis + 1; |
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/* |
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* Behave exactly the same way as groff: |
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* If we have overstepped the margin, temporarily move |
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* it to the right and flag the rest of the line to be |
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* shorter. |
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* If we landed right at the margin, be happy. |
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* If we are one step before the margin, temporarily |
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* move it one step LEFT and flag the rest of the line |
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* to be longer. |
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*/ |
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if (overstep >= -1) { |
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assert((int)maxvis + overstep >= 0); |
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/* LINTED */ |
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maxvis += overstep; |
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} else |
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overstep = 0; |
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} else if (TERMP_DANGLE & p->flags) |
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return; |
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/* Right-pad. */ |
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if (maxvis > vis + /* LINTED */ |
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((TERMP_TWOSPACE & p->flags) ? 1 : 0)) |
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for ( ; vis < maxvis; vis++) |
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putchar(' '); |
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else { /* ...or newline break. */ |
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putchar('\n'); |
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for (i = 0; i < (int)p->rmargin; i++) |
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putchar(' '); |
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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 (0 == p->col) { |
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p->flags &= ~TERMP_NOLPAD; |
return; |
return; |
flushln(p); |
} |
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term_flushln(p); |
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p->flags &= ~TERMP_NOLPAD; |
} |
} |
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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 |
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* lines). |
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*/ |
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newln(p); |
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putchar('\n'); |
putchar('\n'); |
} |
} |
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static void |
static void |
chara(struct termp *p, char c) |
do_special(struct termp *p, const char *word, size_t len) |
{ |
{ |
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const char *rhs; |
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size_t sz; |
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int i; |
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/* TODO: dynamically expand the buffer. */ |
rhs = chars_a2ascii(p->symtab, word, len, &sz); |
if (p->col + 1 >= p->maxcols) |
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errx(1, "line overrun"); |
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p->buf[(p->col)++] = c; |
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} |
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if (NULL == rhs) { |
static void |
#if 0 |
style(struct termp *p, enum termstyle esc) |
fputs("Unknown special character: ", stderr); |
{ |
for (i = 0; i < (int)len; i++) |
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fputc(word[i], stderr); |
if (p->col + 4 >= p->maxcols) |
fputc('\n', stderr); |
errx(1, "line overrun"); |
#endif |
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return; |
p->buf[(p->col)++] = 27; |
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p->buf[(p->col)++] = '['; |
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switch (esc) { |
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case (STYLE_CLEAR): |
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p->buf[(p->col)++] = '0'; |
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break; |
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case (STYLE_BOLD): |
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p->buf[(p->col)++] = '1'; |
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break; |
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case (STYLE_UNDERLINE): |
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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'; |
for (i = 0; i < (int)sz; i++) |
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encode(p, rhs[i]); |
} |
} |
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static void |
static void |
pescape(struct termp *p, const char *word, size_t *i, size_t len) |
do_reserved(struct termp *p, const char *word, size_t len) |
{ |
{ |
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const char *rhs; |
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size_t sz; |
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int i; |
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(*i)++; |
rhs = chars_a2res(p->symtab, word, len, &sz); |
assert(*i < len); |
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if ('(' == word[*i]) { |
if (NULL == rhs) { |
/* Two-character escapes. */ |
#if 0 |
(*i)++; |
fputs("Unknown reserved word: ", stderr); |
assert(*i + 1 < len); |
for (i = 0; i < (int)len; i++) |
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fputc(word[i], stderr); |
if ('r' == word[*i] && 'B' == word[*i + 1]) |
fputc('\n', stderr); |
chara(p, ']'); |
#endif |
else if ('l' == word[*i] && 'B' == word[*i + 1]) |
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chara(p, '['); |
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(*i)++; |
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return; |
return; |
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} else if ('[' != word[*i]) { |
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/* One-character escapes. */ |
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switch (word[*i]) { |
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case ('\\'): |
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/* FALLTHROUGH */ |
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case ('\''): |
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/* FALLTHROUGH */ |
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case ('`'): |
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/* FALLTHROUGH */ |
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case ('-'): |
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/* FALLTHROUGH */ |
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case ('.'): |
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chara(p, word[*i]); |
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default: |
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break; |
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} |
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return; |
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} |
} |
/* n-character escapes. */ |
for (i = 0; i < (int)sz; i++) |
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encode(p, rhs[i]); |
} |
} |
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/* |
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* Handle an escape sequence: determine its length and pass it to the |
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* escape-symbol look table. Note that we assume mdoc(3) has validated |
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* the escape sequence (we assert upon badly-formed escape sequences). |
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*/ |
static void |
static void |
pword(struct termp *p, const char *word, size_t len) |
do_escaped(struct termp *p, const char **word) |
{ |
{ |
size_t i; |
int j, type; |
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const char *wp; |
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assert(len > 0); |
wp = *word; |
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type = 1; |
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if ( ! (p->flags & TERMP_NOSPACE)) |
if (0 == *(++wp)) { |
chara(p, ' '); |
*word = wp; |
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return; |
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} |
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p->flags &= ~TERMP_NOSPACE; |
if ('(' == *wp) { |
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wp++; |
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if (0 == *wp || 0 == *(wp + 1)) { |
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*word = 0 == *wp ? wp : wp + 1; |
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return; |
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} |
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if (p->flags & TERMP_BOLD) |
do_special(p, wp, 2); |
style(p, STYLE_BOLD); |
*word = ++wp; |
if (p->flags & TERMP_UNDERLINE) |
return; |
style(p, STYLE_UNDERLINE); |
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for (i = 0; i < len; i++) { |
} else if ('*' == *wp) { |
if ('\\' == word[i]) { |
if (0 == *(++wp)) { |
pescape(p, word, &i, len); |
*word = wp; |
continue; |
return; |
} |
} |
chara(p, word[i]); |
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} |
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if (p->flags & TERMP_BOLD || |
switch (*wp) { |
p->flags & TERMP_UNDERLINE) |
case ('('): |
style(p, STYLE_CLEAR); |
wp++; |
} |
if (0 == *wp || 0 == *(wp + 1)) { |
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*word = 0 == *wp ? wp : wp + 1; |
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return; |
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} |
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do_reserved(p, wp, 2); |
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*word = ++wp; |
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return; |
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case ('['): |
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type = 0; |
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break; |
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default: |
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do_reserved(p, wp, 1); |
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*word = wp; |
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return; |
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} |
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|
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} else if ('f' == *wp) { |
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if (0 == *(++wp)) { |
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*word = wp; |
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return; |
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} |
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void |
switch (*wp) { |
word(struct termp *p, const char *word) |
case ('B'): |
{ |
p->bold++; |
size_t i, j, len; |
break; |
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case ('I'): |
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p->under++; |
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break; |
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case ('P'): |
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/* FALLTHROUGH */ |
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case ('R'): |
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p->bold = p->under = 0; |
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break; |
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default: |
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break; |
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} |
|
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if (mdoc_isdelim(word)) |
*word = wp; |
p->flags |= TERMP_NOSPACE; |
return; |
|
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len = strlen(word); |
} else if ('[' != *wp) { |
assert(len > 0); |
do_special(p, wp, 1); |
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*word = wp; |
/* LINTED */ |
return; |
for (j = i = 0; i < len; i++) { |
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if ( ! isspace(word[i])) { |
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j++; |
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continue; |
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} |
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if (0 == j) |
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continue; |
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assert(i >= j); |
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pword(p, &word[i - j], j); |
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j = 0; |
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} |
} |
if (j > 0) { |
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assert(i >= j); |
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pword(p, &word[i - j], j); |
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} |
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} |
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wp++; |
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for (j = 0; *wp && ']' != *wp; wp++, j++) |
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/* Loop... */ ; |
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static void |
if (0 == *wp) { |
termprint_r(struct termp *p, const struct mdoc_meta *meta, |
*word = wp; |
const struct mdoc_node *node) |
return; |
{ |
} |
int dochild; |
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/* Pre-processing. */ |
if (type) |
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do_special(p, wp - j, (size_t)j); |
dochild = 1; |
else |
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do_reserved(p, wp - j, (size_t)j); |
if (MDOC_TEXT != node->type) { |
*word = wp; |
if (termacts[node->tok].pre) |
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if ( ! (*termacts[node->tok].pre)(p, meta, node)) |
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dochild = 0; |
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} else /* MDOC_TEXT == node->type */ |
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word(p, node->data.text.string); |
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/* Children. */ |
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if (dochild && node->child) |
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termprint_r(p, meta, node->child); |
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/* Post-processing. */ |
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if (MDOC_TEXT != node->type) |
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if (termacts[node->tok].post) |
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(*termacts[node->tok].post)(p, meta, node); |
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/* Siblings. */ |
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if (node->next) |
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termprint_r(p, meta, node->next); |
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} |
} |
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static void |
/* |
termprint_footer(struct termp *p, const struct mdoc_meta *meta) |
* 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) |
{ |
{ |
struct tm *tm; |
const char *sv; |
char *buf, *os; |
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size_t sz, osz, ssz, i; |
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if (NULL == (buf = malloc(p->rmargin))) |
sv = word; |
err(1, "malloc"); |
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if (NULL == (os = malloc(p->rmargin))) |
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err(1, "malloc"); |
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tm = localtime(&meta->date); |
if (word[0] && 0 == word[1]) |
if (NULL == strftime(buf, p->rmargin, "%B %d, %Y", tm)) |
switch (word[0]) { |
err(1, "strftime"); |
case('.'): |
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osz = strlcpy(os, meta->os, p->rmargin); |
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sz = strlen(buf); |
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ssz = sz + osz + 1; |
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if (ssz > p->rmargin) { |
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ssz -= p->rmargin; |
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assert(ssz <= osz); |
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os[osz - ssz] = 0; |
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ssz = 1; |
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} else |
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ssz = p->rmargin - ssz + 1; |
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printf("\n"); |
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printf("%s", os); |
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for (i = 0; i < ssz; i++) |
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printf(" "); |
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printf("%s\n", buf); |
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fflush(stdout); |
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free(buf); |
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free(os); |
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} |
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static void |
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termprint_header(struct termp *p, const struct mdoc_meta *meta) |
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{ |
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char *buf, *title; |
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const char *pp, *msec; |
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size_t ssz, tsz, ttsz, i;; |
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if (NULL == (buf = malloc(p->rmargin))) |
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err(1, "malloc"); |
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if (NULL == (title = malloc(p->rmargin))) |
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err(1, "malloc"); |
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if (NULL == (pp = mdoc_vol2a(meta->vol))) |
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switch (meta->msec) { |
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case (MSEC_1): |
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/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MSEC_6): |
case(','): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MSEC_7): |
case(';'): |
pp = mdoc_vol2a(VOL_URM); |
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break; |
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case (MSEC_8): |
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pp = mdoc_vol2a(VOL_SMM); |
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break; |
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case (MSEC_2): |
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/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MSEC_3): |
case(':'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MSEC_4): |
case('?'): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MSEC_5): |
case('!'): |
pp = mdoc_vol2a(VOL_PRM); |
/* FALLTHROUGH */ |
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case(')'): |
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/* FALLTHROUGH */ |
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case(']'): |
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/* FALLTHROUGH */ |
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case('}'): |
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if ( ! (TERMP_IGNDELIM & p->flags)) |
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p->flags |= TERMP_NOSPACE; |
break; |
break; |
case (MSEC_9): |
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pp = mdoc_vol2a(VOL_KM); |
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break; |
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default: |
default: |
/* FIXME: capitalise. */ |
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if (NULL == (pp = mdoc_msec2a(meta->msec))) |
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pp = mdoc_msec2a(MSEC_local); |
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break; |
break; |
} |
} |
assert(pp); |
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tsz = strlcpy(buf, pp, p->rmargin); |
if ( ! (TERMP_NOSPACE & p->flags)) |
assert(tsz < p->rmargin); |
buffer(p, ' '); |
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if ((pp = mdoc_arch2a(meta->arch))) { |
if ( ! (p->flags & TERMP_NONOSPACE)) |
tsz = strlcat(buf, " (", p->rmargin); |
p->flags &= ~TERMP_NOSPACE; |
assert(tsz < p->rmargin); |
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tsz = strlcat(buf, pp, p->rmargin); |
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assert(tsz < p->rmargin); |
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tsz = strlcat(buf, ")", p->rmargin); |
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assert(tsz < p->rmargin); |
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} |
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ttsz = strlcpy(title, meta->title, p->rmargin); |
for ( ; *word; word++) |
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if ('\\' != *word) |
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encode(p, *word); |
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else |
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do_escaped(p, &word); |
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if (NULL == (msec = mdoc_msec2a(meta->msec))) |
if (sv[0] && 0 == sv[1]) |
msec = ""; |
switch (sv[0]) { |
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case('('): |
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/* FALLTHROUGH */ |
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case('['): |
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/* FALLTHROUGH */ |
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case('{'): |
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p->flags |= TERMP_NOSPACE; |
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break; |
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default: |
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break; |
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} |
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} |
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ssz = (2 * (ttsz + 2 + strlen(msec))) + tsz + 2; |
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if (ssz > p->rmargin) { |
/* |
if ((ssz -= p->rmargin) % 2) |
* Insert a single character into the line-buffer. If the buffer's |
ssz++; |
* space is exceeded, then allocate more space by doubling the buffer |
ssz /= 2; |
* size. |
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*/ |
assert(ssz <= ttsz); |
static void |
title[ttsz - ssz] = 0; |
buffer(struct termp *p, char c) |
ssz = 1; |
{ |
} else |
size_t s; |
ssz = ((p->rmargin - ssz) / 2) + 1; |
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printf("%s(%s)", title, msec); |
if (p->col + 1 >= p->maxcols) { |
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if (0 == p->maxcols) |
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p->maxcols = 256; |
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s = p->maxcols * 2; |
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p->buf = realloc(p->buf, s); |
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if (NULL == p->buf) { |
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perror(NULL); |
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exit(EXIT_FAILURE); |
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} |
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p->maxcols = s; |
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} |
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p->buf[(int)(p->col)++] = c; |
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} |
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for (i = 0; i < ssz; i++) |
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printf(" "); |
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printf("%s", buf); |
static void |
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encode(struct termp *p, char c) |
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{ |
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if (' ' != c) { |
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if (p->under) { |
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buffer(p, '_'); |
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buffer(p, 8); |
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} |
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if (p->bold) { |
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buffer(p, c); |
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buffer(p, 8); |
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} |
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} |
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buffer(p, c); |
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} |
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for (i = 0; i < ssz; i++) |
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printf(" "); |
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printf("%s(%s)\n", title, msec); |
size_t |
fflush(stdout); |
term_vspan(const struct roffsu *su) |
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{ |
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double r; |
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free(title); |
switch (su->unit) { |
free(buf); |
case (SCALE_CM): |
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r = su->scale * 2; |
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break; |
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case (SCALE_IN): |
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r = su->scale * 6; |
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break; |
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case (SCALE_PC): |
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r = su->scale; |
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break; |
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case (SCALE_PT): |
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r = su->scale / 8; |
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break; |
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case (SCALE_MM): |
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r = su->scale / 1000; |
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break; |
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case (SCALE_VS): |
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r = su->scale; |
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break; |
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default: |
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r = su->scale - 1; |
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break; |
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} |
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if (r < 0.0) |
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r = 0.0; |
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return(/* LINTED */(size_t) |
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r); |
} |
} |
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void |
size_t |
termprint(const struct mdoc_node *node, |
term_hspan(const struct roffsu *su) |
const struct mdoc_meta *meta) |
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{ |
{ |
struct termp p; |
double r; |
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p.maxrmargin = 80; /* XXX */ |
/* XXX: CM, IN, and PT are approximations. */ |
p.rmargin = p.maxrmargin; |
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p.maxcols = 1024; |
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p.offset = p.col = 0; |
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p.flags = TERMP_NOSPACE; |
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if (NULL == (p.buf = malloc(p.maxcols))) |
switch (su->unit) { |
err(1, "malloc"); |
case (SCALE_CM): |
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r = 4 * su->scale; |
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break; |
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case (SCALE_IN): |
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/* XXX: this is an approximation. */ |
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r = 10 * su->scale; |
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break; |
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case (SCALE_PC): |
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r = (10 * su->scale) / 6; |
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break; |
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case (SCALE_PT): |
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r = (10 * su->scale) / 72; |
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break; |
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case (SCALE_MM): |
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r = su->scale / 1000; /* FIXME: double-check. */ |
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break; |
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case (SCALE_VS): |
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r = su->scale * 2 - 1; /* FIXME: double-check. */ |
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break; |
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default: |
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r = su->scale; |
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break; |
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} |
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termprint_header(&p, meta); |
if (r < 0.0) |
termprint_r(&p, meta, node); |
r = 0.0; |
termprint_footer(&p, meta); |
return((size_t)/* LINTED */ |
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r); |
free(p.buf); |
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} |
} |
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