-/* $Id: term.c,v 1.1 2009/02/20 11:04:23 kristaps Exp $ */
+/* $Id: term.c,v 1.169 2010/08/20 23:34:02 schwarze Exp $ */
/*
- * Copyright (c) 2008 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 <curses.h>
-#include <err.h>
-#include <stdlib.h>
+#include <ctype.h>
+#include <stdint.h>
#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
-#include <term.h>
-#include <unistd.h>
-#include "mdoc.h"
+#include "mandoc.h"
+#include "chars.h"
+#include "out.h"
+#include "term.h"
+#include "main.h"
+
+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 int termprint_r(size_t, size_t,
- const struct mdoc_node *);
-static void termprint_head(size_t,
- const struct mdoc_meta *);
-static void termprint_tail(size_t,
- const struct mdoc_meta *);
+void
+term_free(struct termp *p)
+{
-static char *arch2a(enum mdoc_arch);
-static char *vol2a(enum mdoc_vol);
-static char *msec2a(enum mdoc_msec);
+ if (p->buf)
+ free(p->buf);
+ if (p->symtab)
+ chars_free(p->symtab);
-static size_t ttitle2a(char *, enum mdoc_vol, enum mdoc_msec,
- enum mdoc_arch, size_t);
+ free(p);
+}
-static char *
-arch2a(enum mdoc_arch arch)
+void
+term_begin(struct termp *p, term_margin head,
+ term_margin foot, const void *arg)
{
- switch (arch) {
- case (ARCH_alpha):
- return("Alpha");
- case (ARCH_amd64):
- return("AMD64");
- case (ARCH_amiga):
- return("Amiga");
- case (ARCH_arc):
- return("ARC");
- case (ARCH_arm):
- return("ARM");
- case (ARCH_armish):
- return("ARMISH");
- case (ARCH_aviion):
- return("AViion");
- case (ARCH_hp300):
- return("HP300");
- case (ARCH_hppa):
- return("HPPA");
- case (ARCH_hppa64):
- return("HPPA64");
- case (ARCH_i386):
- return("i386");
- case (ARCH_landisk):
- return("LANDISK");
- case (ARCH_luna88k):
- return("Luna88k");
- case (ARCH_mac68k):
- return("Mac68k");
- case (ARCH_macppc):
- return("MacPPC");
- case (ARCH_mvme68k):
- return("MVME68k");
- case (ARCH_mvme88k):
- return("MVME88k");
- case (ARCH_mvmeppc):
- return("MVMEPPC");
- case (ARCH_pmax):
- return("PMAX");
- case (ARCH_sgi):
- return("SGI");
- case (ARCH_socppc):
- return("SOCPPC");
- case (ARCH_sparc):
- return("SPARC");
- case (ARCH_sparc64):
- return("SPARC64");
- case (ARCH_sun3):
- return("Sun3");
- case (ARCH_vax):
- return("VAX");
- case (ARCH_zaurus):
- return("Zaurus");
- default:
- break;
+ p->headf = head;
+ p->footf = foot;
+ p->argf = arg;
+ (*p->begin)(p);
+}
+
+
+void
+term_end(struct termp *p)
+{
+
+ (*p->end)(p);
+}
+
+
+struct termp *
+term_alloc(enum termenc enc)
+{
+ struct termp *p;
+
+ p = calloc(1, sizeof(struct termp));
+ if (NULL == p) {
+ perror(NULL);
+ exit(MANDOCLEVEL_SYSERR);
}
- return(NULL);
+ p->enc = enc;
+ return(p);
}
-static char *
-vol2a(enum mdoc_vol vol)
+/*
+ * 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.
+ */
+
+ assert(p->offset < p->rmargin);
+
+ 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;
+
+ /*
+ * Indent the first line of a paragraph.
+ */
+ vbl = p->flags & TERMP_NOLPAD ? 0 : p->offset;
+
+ 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++;
+ }
- switch (vol) {
- case (VOL_AMD):
- return("OpenBSD Ancestral Manual Documents");
- case (VOL_IND):
- return("OpenBSD Manual Master Index");
- case (VOL_KM):
- return("OpenBSD Kernel Manual");
- case (VOL_LOCAL):
- return("OpenBSD Local Manual");
- case (VOL_PRM):
- return("OpenBSD Programmer's Manual");
- case (VOL_PS1):
- return("OpenBSD Programmer's Supplementary Documents");
- case (VOL_SMM):
- return("OpenBSD System Manager's Manual");
- case (VOL_URM):
- return("OpenBSD Reference Manual");
- case (VOL_USD):
- return("OpenBSD User's Supplementary Documents");
- default:
- break;
+ /*
+ * Count up visible word characters. Control sequences
+ * (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).
+ */
+
+ /* LINTED */
+ for (j = i, jhy = 0; j < (int)p->col; j++) {
+ if ((j && ' ' == p->buf[j]) || '\t' == p->buf[j])
+ break;
+
+ /* 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;
+
+ vend += (*p->width)(p, p->buf[j]);
+ }
+
+ /*
+ * 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;
+ }
+
+ /* Write out the [remaining] word. */
+ for ( ; i < (int)p->col; i++) {
+ if (vend > bp && jhy > 0 && i > jhy)
+ break;
+ 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;
}
- return(NULL);
+ /*
+ * If there was trailing white space, it was not printed;
+ * so reset the cursor position accordingly.
+ */
+ 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);
+ }
}
-static char *
-msec2a(enum mdoc_msec msec)
+/*
+ * 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
+term_newln(struct termp *p)
{
- switch (msec) {
- case(MSEC_1):
- return("1");
- case(MSEC_2):
- return("2");
- case(MSEC_3):
- return("3");
- case(MSEC_3f):
- return("3f");
- case(MSEC_3p):
- return("3p");
- case(MSEC_4):
- return("4");
- case(MSEC_5):
- return("5");
- case(MSEC_6):
- return("6");
- case(MSEC_7):
- return("7");
- case(MSEC_8):
- return("8");
- case(MSEC_9):
- return("9");
- case(MSEC_X11):
- return("X11");
- case(MSEC_X11R6):
- return("X11R6");
- case(MSEC_local):
- return("local");
- case(MSEC_n):
- return("n");
- case(MSEC_unass):
- /* FALLTHROUGH */
- case(MSEC_draft):
- return("draft");
- case(MSEC_paper):
- return("paper");
- default:
- break;
+ p->flags |= TERMP_NOSPACE;
+ if (0 == p->col && 0 == p->viscol) {
+ p->flags &= ~TERMP_NOLPAD;
+ return;
}
- return(NULL);
+ 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
+term_vspace(struct termp *p)
+{
+
+ term_newln(p);
+ p->viscol = 0;
+ (*p->endline)(p);
+}
+
+
+static void
+spec(struct termp *p, enum roffdeco d, const char *word, size_t len)
+{
+ 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
+res(struct termp *p, const char *word, size_t len)
+{
+ const char *rhs;
+ size_t sz;
+
+ rhs = chars_res2str(p->symtab, word, len, &sz);
+ if (rhs)
+ encode(p, rhs, sz);
+}
+
+
+void
+term_fontlast(struct termp *p)
+{
+ enum termfont f;
+
+ f = p->fontl;
+ p->fontl = p->fontq[p->fonti];
+ p->fontq[p->fonti] = f;
+}
+
+
+void
+term_fontrepl(struct termp *p, enum termfont f)
+{
+
+ p->fontl = p->fontq[p->fonti];
+ p->fontq[p->fonti] = f;
+}
+
+
+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 size_t
-ttitle2a(char *dst, enum mdoc_vol vol, enum mdoc_msec msec,
- enum mdoc_arch arch, size_t sz)
+const void *
+term_fontq(struct termp *p)
{
- char *p;
+
+ return(&p->fontq[p->fonti]);
+}
+
+
+enum termfont
+term_fonttop(struct termp *p)
+{
+
+ return(p->fontq[p->fonti]);
+}
+
+
+void
+term_fontpopq(struct termp *p, const void *key)
+{
+
+ while (p->fonti >= 0 && key != &p->fontq[p->fonti])
+ p->fonti--;
+ assert(p->fonti >= 0);
+}
+
+
+void
+term_fontpop(struct termp *p)
+{
+
+ assert(p->fonti);
+ p->fonti--;
+}
+
+
+/*
+ * 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 (NULL == (p = vol2a(vol)))
- switch (msec) {
- case (MSEC_1):
+ if (word[0] && '\0' == word[1])
+ switch (word[0]) {
+ case('.'):
/* FALLTHROUGH */
- case (MSEC_6):
+ case(','):
/* FALLTHROUGH */
- case (MSEC_7):
- p = vol2a(VOL_URM);
- break;
- case (MSEC_8):
- p = vol2a(VOL_SMM);
- break;
- case (MSEC_2):
+ case(';'):
/* FALLTHROUGH */
- case (MSEC_3):
+ case(':'):
/* FALLTHROUGH */
- case (MSEC_4):
+ case('?'):
/* FALLTHROUGH */
- case (MSEC_5):
- p = vol2a(VOL_PRM);
- break;
- case (MSEC_9):
- p = vol2a(VOL_KM);
+ case('!'):
+ /* FALLTHROUGH */
+ case(')'):
+ /* FALLTHROUGH */
+ case(']'):
+ if ( ! (TERMP_IGNDELIM & p->flags))
+ p->flags |= TERMP_NOSPACE;
break;
default:
- /* FIXME: capitalise. */
- if (NULL == (p = msec2a(msec)))
- p = msec2a(MSEC_local);
break;
}
- assert(p);
-
- if ((ssz = strlcpy(dst, p, sz)) >= sz)
- return(ssz);
-
- if ((p = arch2a(arch))) {
- if ((ssz = strlcat(dst, " (", sz)) >= sz)
- return(ssz);
- if ((ssz = strlcat(dst, p, sz)) >= sz)
- return(ssz);
- if ((ssz = strlcat(dst, ")", sz)) >= sz)
- return(ssz);
+
+ 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);
}
- return(ssz);
-}
+ if ( ! (p->flags & TERMP_NONOSPACE))
+ p->flags &= ~TERMP_NOSPACE;
+ else
+ p->flags |= TERMP_NOSPACE;
+ p->flags &= ~TERMP_SENTENCE;
-static int
-termprint_r(size_t cols, size_t indent, const struct mdoc_node *node)
-{
+ while (*word) {
+ if ((ssz = strcspn(word, "\\")) > 0)
+ encode(p, word, ssz);
+
+ word += ssz;
+ if ('\\' != *word)
+ continue;
+
+ seq = ++word;
+ sz = a2roffdeco(&deco, &seq, &ssz);
- return(1);
+ 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;
+ }
+
+ /*
+ * 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;
+ }
}
static void
-termprint_tail(size_t cols, const struct mdoc_meta *meta)
+adjbuf(struct termp *p, size_t sz)
{
- struct tm *tm;
- char *buf, *os;
- size_t sz, osz, ssz, i;
-
- if (NULL == (buf = malloc(cols)))
- err(1, "malloc");
- if (NULL == (os = malloc(cols)))
- err(1, "malloc");
- tm = localtime(&meta->date);
- if (NULL == strftime(buf, cols, "%B %d, %Y", tm))
- err(1, "strftime");
+ if (0 == p->maxcols)
+ p->maxcols = 1024;
+ while (sz >= p->maxcols)
+ p->maxcols <<= 2;
- osz = strlcpy(os, meta->os, cols);
-
- sz = strlen(buf);
- ssz = sz + osz + 1;
+ p->buf = realloc(p->buf, p->maxcols);
+ if (NULL == p->buf) {
+ perror(NULL);
+ exit(MANDOCLEVEL_SYSERR);
+ }
+}
- if (ssz > cols) {
- ssz -= cols;
- assert(ssz <= osz);
- os[osz - ssz] = 0;
- ssz = 1;
- } else
- ssz = cols - ssz + 1;
- printf("%s", os);
- for (i = 0; i < ssz; i++)
- printf(" ");
+static void
+bufferc(struct termp *p, char c)
+{
- printf("%s\n", buf);
+ if (p->col + 1 >= p->maxcols)
+ adjbuf(p, p->col + 1);
- free(buf);
- free(os);
+ p->buf[(int)p->col++] = c;
}
static void
-termprint_head(size_t cols, const struct mdoc_meta *meta)
+encode(struct termp *p, const char *word, size_t sz)
{
- char *msec, *buf, *title;
- size_t ssz, tsz, ttsz, i;
+ enum termfont f;
+ int i;
+
+ /*
+ * Encode and buffer a string of characters. If the current
+ * font mode is unset, buffer directly, else encode then buffer
+ * character by character.
+ */
+
+ if (TERMFONT_NONE == (f = term_fonttop(p))) {
+ if (p->col + sz >= p->maxcols)
+ adjbuf(p, p->col + sz);
+ memcpy(&p->buf[(int)p->col], word, sz);
+ p->col += sz;
+ return;
+ }
- if (NULL == (buf = malloc(cols)))
- err(1, "malloc");
- if (NULL == (title = malloc(cols)))
- err(1, "malloc");
+ /* Pre-buffer, assuming worst-case. */
- /* Format the manual page header. */
+ if (p->col + 1 + (sz * 3) >= p->maxcols)
+ adjbuf(p, p->col + 1 + (sz * 3));
- tsz = ttitle2a(buf, meta->vol, meta->msec, meta->arch, cols);
- ttsz = strlcpy(title, meta->title, cols);
+ for (i = 0; i < (int)sz; i++) {
+ if ( ! isgraph((u_char)word[i])) {
+ p->buf[(int)p->col++] = word[i];
+ continue;
+ }
- if (NULL == (msec = msec2a(meta->msec)))
- msec = "";
+ if (TERMFONT_UNDER == f)
+ p->buf[(int)p->col++] = '_';
+ else
+ p->buf[(int)p->col++] = word[i];
- ssz = (2 * (ttsz + 2 + strlen(msec))) + tsz + 2;
+ p->buf[(int)p->col++] = 8;
+ p->buf[(int)p->col++] = word[i];
+ }
+}
- if (ssz > cols) {
- if ((ssz -= cols) % 2)
- ssz++;
- ssz /= 2;
-
- assert(ssz <= ttsz);
- title[ttsz - ssz] = 0;
- ssz = 1;
- } else
- ssz = ((cols - ssz) / 2) + 1;
- printf("%s(%s)", title, msec);
+size_t
+term_len(const struct termp *p, size_t sz)
+{
- for (i = 0; i < ssz; i++)
- printf(" ");
+ return((*p->width)(p, ' ') * sz);
+}
- printf("%s", buf);
- for (i = 0; i < ssz; i++)
- printf(" ");
+size_t
+term_strlen(const struct termp *p, const char *cp)
+{
+ size_t sz;
- printf("%s(%s)\n\n", title, msec);
+ for (sz = 0; *cp; cp++)
+ sz += (*p->width)(p, *cp);
- free(title);
- free(buf);
+ return(sz);
}
-int
-termprint(const struct mdoc_node *node,
- const struct mdoc_meta *meta)
+/* ARGSUSED */
+size_t
+term_vspan(const struct termp *p, const struct roffsu *su)
{
- size_t cols;
-
- if (ERR == setupterm(NULL, STDOUT_FILENO, NULL))
- return(0);
+ double r;
- cols = columns < 60 ? 60 : (size_t)columns;
+ 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;
+ }
- termprint_head(cols, meta);
- if ( ! termprint_r(cols, 0, node))
- return(0);
- termprint_tail(cols, meta);
- return(1);
+ 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