-/* $Id: term.c,v 1.6 2009/02/21 21:00:06 kristaps Exp $ */
+/* $Id: term.c,v 1.169 2010/08/20 23:34:02 schwarze Exp $ */
/*
- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
+ * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the
- * above copyright notice and this permission notice appear in all
- * copies.
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
*
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
- * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
- * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
- * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
- * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <sys/types.h>
+
#include <assert.h>
#include <ctype.h>
-#include <err.h>
-#include <stdlib.h>
+#include <stdint.h>
#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
-#include <unistd.h>
+#include "mandoc.h"
+#include "chars.h"
+#include "out.h"
#include "term.h"
+#include "main.h"
-enum termstyle {
- STYLE_CLEAR,
- STYLE_BOLD,
- STYLE_UNDERLINE
-};
+static void spec(struct termp *, enum roffdeco,
+ const char *, size_t);
+static void res(struct termp *, const char *, size_t);
+static void bufferc(struct termp *, char);
+static void adjbuf(struct termp *p, size_t);
+static void encode(struct termp *, const char *, size_t);
-static void termprint_r(struct termp *,
- const struct mdoc_meta *,
- const struct mdoc_node *);
-static void termprint_header(struct termp *,
- const struct mdoc_meta *);
-static void termprint_footer(struct termp *,
- const struct mdoc_meta *);
-static void pword(struct termp *, const char *, size_t);
-static void pescape(struct termp *,
- const char *, size_t *, size_t);
-static void chara(struct termp *, char);
-static void style(struct termp *, enum termstyle);
+void
+term_free(struct termp *p)
+{
+
+ if (p->buf)
+ free(p->buf);
+ if (p->symtab)
+ chars_free(p->symtab);
+
+ free(p);
+}
+
+
+void
+term_begin(struct termp *p, term_margin head,
+ term_margin foot, const void *arg)
+{
+
+ p->headf = head;
+ p->footf = foot;
+ p->argf = arg;
+ (*p->begin)(p);
+}
void
-flushln(struct termp *p)
+term_end(struct termp *p)
+{
+
+ (*p->end)(p);
+}
+
+
+struct termp *
+term_alloc(enum termenc enc)
{
- size_t i, j, vsz, vis, maxvis;
+ struct termp *p;
+
+ p = calloc(1, sizeof(struct termp));
+ if (NULL == p) {
+ perror(NULL);
+ exit(MANDOCLEVEL_SYSERR);
+ }
+
+ p->enc = enc;
+ return(p);
+}
+
+
+/*
+ * Flush a line of text. A "line" is loosely defined as being something
+ * that should be followed by a newline, regardless of whether it's
+ * broken apart by newlines getting there. A line can also be a
+ * fragment of a columnar list (`Bl -tag' or `Bl -column'), which does
+ * not have a trailing newline.
+ *
+ * The following flags may be specified:
+ *
+ * - TERMP_NOLPAD: when beginning to write the line, don't left-pad the
+ * offset value. This is useful when doing columnar lists where the
+ * prior column has right-padded.
+ *
+ * - TERMP_NOBREAK: this is the most important and is used when making
+ * columns. In short: don't print a newline and instead pad to the
+ * right margin. Used in conjunction with TERMP_NOLPAD.
+ *
+ * - TERMP_TWOSPACE: when padding, make sure there are at least two
+ * space characters of padding. Otherwise, rather break the line.
+ *
+ * - TERMP_DANGLE: don't newline when TERMP_NOBREAK is specified and
+ * the line is overrun, and don't pad-right if it's underrun.
+ *
+ * - TERMP_HANG: like TERMP_DANGLE, but doesn't newline when
+ * overruning, instead save the position and continue at that point
+ * when the next invocation.
+ *
+ * In-line line breaking:
+ *
+ * If TERMP_NOBREAK is specified and the line overruns the right
+ * margin, it will break and pad-right to the right margin after
+ * writing. If maxrmargin is violated, it will break and continue
+ * writing from the right-margin, which will lead to the above scenario
+ * upon exit. Otherwise, the line will break at the right margin.
+ */
+void
+term_flushln(struct termp *p)
+{
+ int i; /* current input position in p->buf */
+ size_t vis; /* current visual position on output */
+ size_t vbl; /* number of blanks to prepend to output */
+ size_t vend; /* end of word visual position on output */
+ size_t bp; /* visual right border position */
+ int j; /* temporary loop index for p->buf */
+ int jhy; /* last hyph before overflow w/r/t j */
+ size_t maxvis; /* output position of visible boundary */
+ size_t mmax; /* used in calculating bp */
/*
* First, establish the maximum columns of "visible" content.
* This is usually the difference between the right-margin and
* an indentation, but can be, for tagged lists or columns, a
- * small set of values.
+ * small set of values.
*/
assert(p->offset < p->rmargin);
- maxvis = p->rmargin - p->offset;
- vis = 0;
+
+ maxvis = (int)(p->rmargin - p->offset) - p->overstep < 0 ?
+ /* LINTED */
+ 0 : p->rmargin - p->offset - p->overstep;
+ mmax = (int)(p->maxrmargin - p->offset) - p->overstep < 0 ?
+ /* LINTED */
+ 0 : p->maxrmargin - p->offset - p->overstep;
+
+ bp = TERMP_NOBREAK & p->flags ? mmax : maxvis;
/*
- * If in the standard case (left-justified), then begin with our
- * indentation, otherwise (columns, etc.) just start spitting
- * out text.
+ * Indent the first line of a paragraph.
*/
+ vbl = p->flags & TERMP_NOLPAD ? 0 : p->offset;
- if ( ! (p->flags & TERMP_NOLPAD))
- /* LINTED */
- for (j = 0; j < p->offset; j++)
- putchar(' ');
+ vis = vend = i = 0;
+
+ while (i < (int)p->col) {
+ /*
+ * Handle literal tab characters: collapse all
+ * subsequent tabs into a single huge set of spaces.
+ */
+ while (i < (int)p->col && '\t' == p->buf[i]) {
+ vend = (vis / p->tabwidth + 1) * p->tabwidth;
+ vbl += vend - vis;
+ vis = vend;
+ i++;
+ }
- for (i = 0; i < p->col; i++) {
/*
* Count up visible word characters. Control sequences
- * (starting with the CSI) aren't counted.
+ * (starting with the CSI) aren't counted. A space
+ * generates a non-printing word, which is valid (the
+ * space is printed according to regular spacing rules).
*/
- assert( ! isspace(p->buf[i]));
/* LINTED */
- for (j = i, vsz = 0; j < p->col; j++) {
- if (isspace(p->buf[j]))
+ for (j = i, jhy = 0; j < (int)p->col; j++) {
+ if ((j && ' ' == p->buf[j]) || '\t' == p->buf[j])
break;
- else if (27 == p->buf[j]) {
- assert(j + 4 <= p->col);
- j += 3;
- } else
- vsz++;
- }
- assert(vsz > 0);
- /*
- * If a word is too long and we're within a line, put it
- * on the next line. Puke if we're being asked to write
- * something that will exceed the right margin (i.e.,
- * from a fresh line or when we're not allowed to break
- * the line with TERMP_NOBREAK).
- */
+ /* Back over the the last printed character. */
+ if (8 == p->buf[j]) {
+ assert(j);
+ vend -= (*p->width)(p, p->buf[j - 1]);
+ continue;
+ }
+
+ /* Regular word. */
+ /* Break at the hyphen point if we overrun. */
+ if (vend > vis && vend < bp &&
+ ASCII_HYPH == p->buf[j])
+ jhy = j;
- if (vis && vis + vsz >= maxvis) {
- /* FIXME */
- if (p->flags & TERMP_NOBREAK)
- errx(1, "word breaks right margin");
- putchar('\n');
- for (j = 0; j < p->offset; j++)
- putchar(' ');
- vis = 0;
- } else if (vis + vsz >= maxvis) {
- /* FIXME */
- errx(1, "word breaks right margin");
+ vend += (*p->width)(p, p->buf[j]);
}
- /*
- * Write out the word and a trailing space. Omit the
- * space if we're the last word in the line.
+ /*
+ * Find out whether we would exceed the right margin.
+ * If so, break to the next line.
*/
+ if (vend > bp && 0 == jhy && vis > 0) {
+ vend -= vis;
+ (*p->endline)(p);
+ if (TERMP_NOBREAK & p->flags) {
+ p->viscol = p->rmargin;
+ (*p->advance)(p, p->rmargin);
+ vend += p->rmargin - p->offset;
+ } else {
+ p->viscol = 0;
+ vbl = p->offset;
+ }
+
+ /* Remove the p->overstep width. */
+
+ bp += (int)/* LINTED */
+ p->overstep;
+ p->overstep = 0;
+ }
- for ( ; i < p->col; i++) {
- if (isspace(p->buf[i]))
+ /* Write out the [remaining] word. */
+ for ( ; i < (int)p->col; i++) {
+ if (vend > bp && jhy > 0 && i > jhy)
break;
- putchar(p->buf[i]);
- }
- vis += vsz;
- if (i < p->col) {
- putchar(' ');
- vis++;
+ if ('\t' == p->buf[i])
+ break;
+ if (' ' == p->buf[i]) {
+ j = i;
+ while (' ' == p->buf[i])
+ i++;
+ vbl += (i - j) * (*p->width)(p, ' ');
+ break;
+ }
+ if (ASCII_NBRSP == p->buf[i]) {
+ vbl += (*p->width)(p, ' ');
+ continue;
+ }
+
+ /*
+ * Now we definitely know there will be
+ * printable characters to output,
+ * so write preceding white space now.
+ */
+ if (vbl) {
+ (*p->advance)(p, vbl);
+ p->viscol += vbl;
+ vbl = 0;
+ }
+
+ if (ASCII_HYPH == p->buf[i]) {
+ (*p->letter)(p, '-');
+ p->viscol += (*p->width)(p, '-');
+ } else {
+ (*p->letter)(p, p->buf[i]);
+ p->viscol += (*p->width)(p, p->buf[i]);
+ }
}
+ vend += vbl;
+ vis = vend;
}
/*
- * If we're not to right-marginalise it (newline), then instead
- * pad to the right margin and stay off.
+ * If there was trailing white space, it was not printed;
+ * so reset the cursor position accordingly.
*/
-
- if (p->flags & TERMP_NOBREAK) {
- for ( ; vis <= maxvis; vis++)
- putchar(' ');
- } else
- putchar('\n');
+ vis -= vbl;
p->col = 0;
+ p->overstep = 0;
+
+ if ( ! (TERMP_NOBREAK & p->flags)) {
+ p->viscol = 0;
+ (*p->endline)(p);
+ return;
+ }
+
+ if (TERMP_HANG & p->flags) {
+ /* We need one blank after the tag. */
+ p->overstep = /* LINTED */
+ vis - maxvis + (*p->width)(p, ' ');
+
+ /*
+ * Behave exactly the same way as groff:
+ * If we have overstepped the margin, temporarily move
+ * it to the right and flag the rest of the line to be
+ * shorter.
+ * If we landed right at the margin, be happy.
+ * If we are one step before the margin, temporarily
+ * move it one step LEFT and flag the rest of the line
+ * to be longer.
+ */
+ if (p->overstep >= -1) {
+ assert((int)maxvis + p->overstep >= 0);
+ /* LINTED */
+ maxvis += p->overstep;
+ } else
+ p->overstep = 0;
+
+ } else if (TERMP_DANGLE & p->flags)
+ return;
+
+ /* Right-pad. */
+ if (maxvis > vis + /* LINTED */
+ ((TERMP_TWOSPACE & p->flags) ?
+ (*p->width)(p, ' ') : 0)) {
+ p->viscol += maxvis - vis;
+ (*p->advance)(p, maxvis - vis);
+ vis += (maxvis - vis);
+ } else { /* ...or newline break. */
+ (*p->endline)(p);
+ p->viscol = p->rmargin;
+ (*p->advance)(p, p->rmargin);
+ }
}
+/*
+ * A newline only breaks an existing line; it won't assert vertical
+ * space. All data in the output buffer is flushed prior to the newline
+ * assertion.
+ */
void
-newln(struct termp *p)
+term_newln(struct termp *p)
{
- /*
- * A newline only breaks an existing line; it won't assert
- * vertical space.
- */
p->flags |= TERMP_NOSPACE;
- if (0 == p->col)
+ if (0 == p->col && 0 == p->viscol) {
+ p->flags &= ~TERMP_NOLPAD;
return;
- flushln(p);
+ }
+ term_flushln(p);
+ p->flags &= ~TERMP_NOLPAD;
}
+/*
+ * Asserts a vertical space (a full, empty line-break between lines).
+ * Note that if used twice, this will cause two blank spaces and so on.
+ * All data in the output buffer is flushed prior to the newline
+ * assertion.
+ */
void
-vspace(struct termp *p)
+term_vspace(struct termp *p)
{
- /*
- * Asserts a vertical space (a full, empty line-break between
- * lines).
- */
- newln(p);
- putchar('\n');
+ term_newln(p);
+ p->viscol = 0;
+ (*p->endline)(p);
}
static void
-chara(struct termp *p, char c)
+spec(struct termp *p, enum roffdeco d, const char *word, size_t len)
{
-
- /* TODO: dynamically expand the buffer. */
- if (p->col + 1 >= p->maxcols)
- errx(1, "line overrun");
- p->buf[(p->col)++] = c;
+ const char *rhs;
+ size_t sz;
+
+ rhs = chars_spec2str(p->symtab, word, len, &sz);
+ if (rhs)
+ encode(p, rhs, sz);
+ else if (DECO_SSPECIAL == d)
+ encode(p, word, len);
}
static void
-style(struct termp *p, enum termstyle esc)
+res(struct termp *p, const char *word, size_t len)
{
+ const char *rhs;
+ size_t sz;
- if (p->col + 4 >= p->maxcols)
- errx(1, "line overrun");
-
- p->buf[(p->col)++] = 27;
- p->buf[(p->col)++] = '[';
- switch (esc) {
- case (STYLE_CLEAR):
- p->buf[(p->col)++] = '0';
- break;
- case (STYLE_BOLD):
- p->buf[(p->col)++] = '1';
- break;
- case (STYLE_UNDERLINE):
- p->buf[(p->col)++] = '4';
- break;
- default:
- abort();
- /* NOTREACHED */
- }
- p->buf[(p->col)++] = 'm';
+ rhs = chars_res2str(p->symtab, word, len, &sz);
+ if (rhs)
+ encode(p, rhs, sz);
}
-static void
-pescape(struct termp *p, const char *word, size_t *i, size_t len)
+void
+term_fontlast(struct termp *p)
{
+ enum termfont f;
- (*i)++;
- assert(*i < len);
+ f = p->fontl;
+ p->fontl = p->fontq[p->fonti];
+ p->fontq[p->fonti] = f;
+}
- if ('(' == word[*i]) {
- /* Two-character escapes. */
- (*i)++;
- assert(*i + 1 < len);
- if ('r' == word[*i] && 'B' == word[*i + 1])
- chara(p, ']');
- else if ('l' == word[*i] && 'B' == word[*i + 1])
- chara(p, '[');
+void
+term_fontrepl(struct termp *p, enum termfont f)
+{
- (*i)++;
- return;
+ p->fontl = p->fontq[p->fonti];
+ p->fontq[p->fonti] = f;
+}
- } else if ('[' != word[*i]) {
- /* One-character escapes. */
- switch (word[*i]) {
- case ('\\'):
- /* FALLTHROUGH */
- case ('\''):
- /* FALLTHROUGH */
- case ('`'):
- /* FALLTHROUGH */
- case ('-'):
- /* FALLTHROUGH */
- case ('.'):
- chara(p, word[*i]);
- default:
- break;
- }
- return;
- }
- /* n-character escapes. */
+
+void
+term_fontpush(struct termp *p, enum termfont f)
+{
+
+ assert(p->fonti + 1 < 10);
+ p->fontl = p->fontq[p->fonti];
+ p->fontq[++p->fonti] = f;
}
-static void
-pword(struct termp *p, const char *word, size_t len)
+const void *
+term_fontq(struct termp *p)
{
- size_t i;
- assert(len > 0);
+ return(&p->fontq[p->fonti]);
+}
- if ( ! (p->flags & TERMP_NOSPACE))
- chara(p, ' ');
- p->flags &= ~TERMP_NOSPACE;
+enum termfont
+term_fonttop(struct termp *p)
+{
- if (p->flags & TERMP_BOLD)
- style(p, STYLE_BOLD);
- if (p->flags & TERMP_UNDERLINE)
- style(p, STYLE_UNDERLINE);
+ return(p->fontq[p->fonti]);
+}
- for (i = 0; i < len; i++) {
- if ('\\' == word[i]) {
- pescape(p, word, &i, len);
- continue;
- }
- chara(p, word[i]);
- }
- if (p->flags & TERMP_BOLD ||
- p->flags & TERMP_UNDERLINE)
- style(p, STYLE_CLEAR);
+void
+term_fontpopq(struct termp *p, const void *key)
+{
+
+ while (p->fonti >= 0 && key != &p->fontq[p->fonti])
+ p->fonti--;
+ assert(p->fonti >= 0);
}
void
-word(struct termp *p, const char *word)
+term_fontpop(struct termp *p)
{
- size_t i, j, len;
- if (mdoc_isdelim(word))
- p->flags |= TERMP_NOSPACE;
+ assert(p->fonti);
+ p->fonti--;
+}
- len = strlen(word);
- assert(len > 0);
- /* LINTED */
- for (j = i = 0; i < len; i++) {
- if ( ! isspace(word[i])) {
- j++;
- continue;
+/*
+ * Handle pwords, partial words, which may be either a single word or a
+ * phrase that cannot be broken down (such as a literal string). This
+ * handles word styling.
+ */
+void
+term_word(struct termp *p, const char *word)
+{
+ const char *sv, *seq;
+ int sz;
+ size_t ssz;
+ enum roffdeco deco;
+
+ sv = word;
+
+ if (word[0] && '\0' == word[1])
+ switch (word[0]) {
+ case('.'):
+ /* FALLTHROUGH */
+ case(','):
+ /* FALLTHROUGH */
+ case(';'):
+ /* FALLTHROUGH */
+ case(':'):
+ /* FALLTHROUGH */
+ case('?'):
+ /* FALLTHROUGH */
+ case('!'):
+ /* FALLTHROUGH */
+ case(')'):
+ /* FALLTHROUGH */
+ case(']'):
+ if ( ! (TERMP_IGNDELIM & p->flags))
+ p->flags |= TERMP_NOSPACE;
+ break;
+ default:
+ break;
}
- if (0 == j)
- continue;
- assert(i >= j);
- pword(p, &word[i - j], j);
- j = 0;
- }
- if (j > 0) {
- assert(i >= j);
- pword(p, &word[i - j], j);
+
+ if ( ! (TERMP_NOSPACE & p->flags)) {
+ if ( ! (TERMP_KEEP & p->flags)) {
+ if (TERMP_PREKEEP & p->flags)
+ p->flags |= TERMP_KEEP;
+ bufferc(p, ' ');
+ if (TERMP_SENTENCE & p->flags)
+ bufferc(p, ' ');
+ } else
+ bufferc(p, ASCII_NBRSP);
}
-}
+ if ( ! (p->flags & TERMP_NONOSPACE))
+ p->flags &= ~TERMP_NOSPACE;
+ else
+ p->flags |= TERMP_NOSPACE;
-static void
-termprint_r(struct termp *p, const struct mdoc_meta *meta,
- const struct mdoc_node *node)
-{
- int dochild;
+ p->flags &= ~TERMP_SENTENCE;
- /* Pre-processing. */
+ while (*word) {
+ if ((ssz = strcspn(word, "\\")) > 0)
+ encode(p, word, ssz);
- dochild = 1;
+ word += ssz;
+ if ('\\' != *word)
+ continue;
- if (MDOC_TEXT != node->type) {
- if (termacts[node->tok].pre)
- if ( ! (*termacts[node->tok].pre)(p, meta, node))
- dochild = 0;
- } else /* MDOC_TEXT == node->type */
- word(p, node->data.text.string);
+ seq = ++word;
+ sz = a2roffdeco(&deco, &seq, &ssz);
- /* Children. */
+ switch (deco) {
+ case (DECO_RESERVED):
+ res(p, seq, ssz);
+ break;
+ case (DECO_SPECIAL):
+ /* FALLTHROUGH */
+ case (DECO_SSPECIAL):
+ spec(p, deco, seq, ssz);
+ break;
+ case (DECO_BOLD):
+ term_fontrepl(p, TERMFONT_BOLD);
+ break;
+ case (DECO_ITALIC):
+ term_fontrepl(p, TERMFONT_UNDER);
+ break;
+ case (DECO_ROMAN):
+ term_fontrepl(p, TERMFONT_NONE);
+ break;
+ case (DECO_PREVIOUS):
+ term_fontlast(p);
+ break;
+ default:
+ break;
+ }
+
+ word += sz;
+ if (DECO_NOSPACE == deco && '\0' == *word)
+ p->flags |= TERMP_NOSPACE;
+ }
- if (dochild && node->child)
- termprint_r(p, meta, node->child);
+ /*
+ * Note that we don't process the pipe: the parser sees it as
+ * punctuation, but we don't in terms of typography.
+ */
+ if (sv[0] && '\0' == sv[1])
+ switch (sv[0]) {
+ case('('):
+ /* FALLTHROUGH */
+ case('['):
+ p->flags |= TERMP_NOSPACE;
+ break;
+ default:
+ break;
+ }
+}
- /* Post-processing. */
- if (MDOC_TEXT != node->type)
- if (termacts[node->tok].post)
- (*termacts[node->tok].post)(p, meta, node);
+static void
+adjbuf(struct termp *p, size_t sz)
+{
- /* Siblings. */
+ if (0 == p->maxcols)
+ p->maxcols = 1024;
+ while (sz >= p->maxcols)
+ p->maxcols <<= 2;
- if (node->next)
- termprint_r(p, meta, node->next);
+ p->buf = realloc(p->buf, p->maxcols);
+ if (NULL == p->buf) {
+ perror(NULL);
+ exit(MANDOCLEVEL_SYSERR);
+ }
}
static void
-termprint_footer(struct termp *p, const struct mdoc_meta *meta)
+bufferc(struct termp *p, char c)
{
- struct tm *tm;
- char *buf, *os;
- size_t sz, osz, ssz, i;
-
- if (NULL == (buf = malloc(p->rmargin)))
- err(1, "malloc");
- if (NULL == (os = malloc(p->rmargin)))
- err(1, "malloc");
-
- tm = localtime(&meta->date);
- if (NULL == strftime(buf, p->rmargin, "%B %d, %Y", tm))
- err(1, "strftime");
-
- osz = strlcpy(os, meta->os, p->rmargin);
-
- sz = strlen(buf);
- ssz = sz + osz + 1;
-
- if (ssz > p->rmargin) {
- ssz -= p->rmargin;
- assert(ssz <= osz);
- os[osz - ssz] = 0;
- ssz = 1;
- } else
- ssz = p->rmargin - ssz + 1;
-
- printf("\n");
- printf("%s", os);
- for (i = 0; i < ssz; i++)
- printf(" ");
-
- printf("%s\n", buf);
- fflush(stdout);
-
- free(buf);
- free(os);
+
+ if (p->col + 1 >= p->maxcols)
+ adjbuf(p, p->col + 1);
+
+ p->buf[(int)p->col++] = c;
}
static void
-termprint_header(struct termp *p, const struct mdoc_meta *meta)
+encode(struct termp *p, const char *word, size_t sz)
{
- char *buf, *title;
- const char *pp, *msec;
- size_t ssz, tsz, ttsz, i;;
-
- if (NULL == (buf = malloc(p->rmargin)))
- err(1, "malloc");
- if (NULL == (title = malloc(p->rmargin)))
- err(1, "malloc");
-
- if (NULL == (pp = mdoc_vol2a(meta->vol)))
- switch (meta->msec) {
- case (MSEC_1):
- /* FALLTHROUGH */
- case (MSEC_6):
- /* FALLTHROUGH */
- case (MSEC_7):
- pp = mdoc_vol2a(VOL_URM);
- break;
- case (MSEC_8):
- pp = mdoc_vol2a(VOL_SMM);
- break;
- case (MSEC_2):
- /* FALLTHROUGH */
- case (MSEC_3):
- /* FALLTHROUGH */
- case (MSEC_4):
- /* FALLTHROUGH */
- case (MSEC_5):
- pp = mdoc_vol2a(VOL_PRM);
- break;
- case (MSEC_9):
- pp = mdoc_vol2a(VOL_KM);
- break;
- default:
- /* FIXME: capitalise. */
- if (NULL == (pp = mdoc_msec2a(meta->msec)))
- pp = mdoc_msec2a(MSEC_local);
- 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);
- }
+ enum termfont f;
+ int i;
- ttsz = strlcpy(title, meta->title, p->rmargin);
+ /*
+ * Encode and buffer a string of characters. If the current
+ * font mode is unset, buffer directly, else encode then buffer
+ * character by character.
+ */
- if (NULL == (msec = mdoc_msec2a(meta->msec)))
- msec = "";
+ if (TERMFONT_NONE == (f = term_fonttop(p))) {
+ if (p->col + sz >= p->maxcols)
+ adjbuf(p, p->col + sz);
+ memcpy(&p->buf[(int)p->col], word, sz);
+ p->col += sz;
+ return;
+ }
- ssz = (2 * (ttsz + 2 + strlen(msec))) + tsz + 2;
+ /* Pre-buffer, assuming worst-case. */
- 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;
+ if (p->col + 1 + (sz * 3) >= p->maxcols)
+ adjbuf(p, p->col + 1 + (sz * 3));
- printf("%s(%s)", title, msec);
+ for (i = 0; i < (int)sz; i++) {
+ if ( ! isgraph((u_char)word[i])) {
+ p->buf[(int)p->col++] = word[i];
+ continue;
+ }
- for (i = 0; i < ssz; i++)
- printf(" ");
+ if (TERMFONT_UNDER == f)
+ p->buf[(int)p->col++] = '_';
+ else
+ p->buf[(int)p->col++] = word[i];
- printf("%s", buf);
+ p->buf[(int)p->col++] = 8;
+ p->buf[(int)p->col++] = word[i];
+ }
+}
- for (i = 0; i < ssz; i++)
- printf(" ");
- printf("%s(%s)\n", title, msec);
- fflush(stdout);
+size_t
+term_len(const struct termp *p, size_t sz)
+{
- free(title);
- free(buf);
+ return((*p->width)(p, ' ') * sz);
}
-void
-termprint(const struct mdoc_node *node,
- const struct mdoc_meta *meta)
+size_t
+term_strlen(const struct termp *p, const char *cp)
{
- struct termp p;
+ size_t sz;
+
+ for (sz = 0; *cp; cp++)
+ sz += (*p->width)(p, *cp);
- p.maxrmargin = 80; /* XXX */
- p.rmargin = p.maxrmargin;
- p.maxcols = 1024;
- p.offset = p.col = 0;
- p.flags = TERMP_NOSPACE;
+ return(sz);
+}
- if (NULL == (p.buf = malloc(p.maxcols)))
- err(1, "malloc");
- termprint_header(&p, meta);
- termprint_r(&p, meta, node);
- termprint_footer(&p, meta);
+/* ARGSUSED */
+size_t
+term_vspan(const struct termp *p, const struct roffsu *su)
+{
+ double r;
- free(p.buf);
+ switch (su->unit) {
+ case (SCALE_CM):
+ r = su->scale * 2;
+ break;
+ case (SCALE_IN):
+ r = su->scale * 6;
+ break;
+ case (SCALE_PC):
+ r = su->scale;
+ break;
+ case (SCALE_PT):
+ r = su->scale / 8;
+ break;
+ case (SCALE_MM):
+ r = su->scale / 1000;
+ break;
+ case (SCALE_VS):
+ r = su->scale;
+ break;
+ default:
+ r = su->scale - 1;
+ break;
+ }
+
+ if (r < 0.0)
+ r = 0.0;
+ return(/* LINTED */(size_t)
+ r);
}
+size_t
+term_hspan(const struct termp *p, const struct roffsu *su)
+{
+ double v;
+
+ v = ((*p->hspan)(p, su));
+ if (v < 0.0)
+ v = 0.0;
+ return((size_t) /* LINTED */
+ v);
+}
git.ckatri.com / mandoc.git / blobdiff