-/* $OpenBSD$ */
+/* $Id: roff_term.c,v 1.20 2020/06/22 19:20:40 schwarze Exp $ */
/*
- * Copyright (c) 2010, 2017 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2010,2014,2015,2017-2019 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
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
+#include "config.h"
+
#include <sys/types.h>
#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+#include "mandoc.h"
#include "roff.h"
#include "out.h"
#include "term.h"
typedef void (*roff_term_pre_fp)(ROFF_TERM_ARGS);
static void roff_term_pre_br(ROFF_TERM_ARGS);
+static void roff_term_pre_ce(ROFF_TERM_ARGS);
static void roff_term_pre_ft(ROFF_TERM_ARGS);
+static void roff_term_pre_ll(ROFF_TERM_ARGS);
+static void roff_term_pre_mc(ROFF_TERM_ARGS);
+static void roff_term_pre_po(ROFF_TERM_ARGS);
+static void roff_term_pre_sp(ROFF_TERM_ARGS);
+static void roff_term_pre_ta(ROFF_TERM_ARGS);
+static void roff_term_pre_ti(ROFF_TERM_ARGS);
static const roff_term_pre_fp roff_term_pre_acts[ROFF_MAX] = {
roff_term_pre_br, /* br */
+ roff_term_pre_ce, /* ce */
+ roff_term_pre_br, /* fi */
roff_term_pre_ft, /* ft */
+ roff_term_pre_ll, /* ll */
+ roff_term_pre_mc, /* mc */
+ roff_term_pre_br, /* nf */
+ roff_term_pre_po, /* po */
+ roff_term_pre_ce, /* rj */
+ roff_term_pre_sp, /* sp */
+ roff_term_pre_ta, /* ta */
+ roff_term_pre_ti, /* ti */
};
{
term_newln(p);
if (p->flags & TERMP_BRIND) {
- p->offset = p->rmargin;
- p->rmargin = p->maxrmargin;
+ p->tcol->offset = p->tcol->rmargin;
+ p->tcol->rmargin = p->maxrmargin;
+ p->trailspace = 0;
p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
+ p->flags |= TERMP_NOSPACE;
}
}
+static void
+roff_term_pre_ce(ROFF_TERM_ARGS)
+{
+ const struct roff_node *nc1, *nc2;
+
+ roff_term_pre_br(p, n);
+ p->flags |= n->tok == ROFF_ce ? TERMP_CENTER : TERMP_RIGHT;
+ nc1 = n->child->next;
+ while (nc1 != NULL) {
+ nc2 = nc1;
+ do {
+ nc2 = nc2->next;
+ } while (nc2 != NULL && (nc2->type != ROFFT_TEXT ||
+ (nc2->flags & NODE_LINE) == 0));
+ while (nc1 != nc2) {
+ if (nc1->type == ROFFT_TEXT)
+ term_word(p, nc1->string);
+ else
+ roff_term_pre(p, nc1);
+ nc1 = nc1->next;
+ }
+ p->flags |= TERMP_NOSPACE;
+ term_flushln(p);
+ }
+ p->flags &= ~(TERMP_CENTER | TERMP_RIGHT);
+}
+
static void
roff_term_pre_ft(ROFF_TERM_ARGS)
{
- switch (*n->child->string) {
- case '4':
- case '3':
- case 'B':
+ const char *cp;
+
+ cp = n->child->string;
+ switch (mandoc_font(cp, (int)strlen(cp))) {
+ case ESCAPE_FONTBOLD:
term_fontrepl(p, TERMFONT_BOLD);
break;
- case '2':
- case 'I':
+ case ESCAPE_FONTITALIC:
term_fontrepl(p, TERMFONT_UNDER);
break;
- case 'P':
+ case ESCAPE_FONTBI:
+ term_fontrepl(p, TERMFONT_BI);
+ break;
+ case ESCAPE_FONTPREV:
term_fontlast(p);
break;
- case '1':
- case 'C':
- case 'R':
+ case ESCAPE_FONTROMAN:
+ case ESCAPE_FONTCW:
term_fontrepl(p, TERMFONT_NONE);
break;
default:
break;
}
}
+
+static void
+roff_term_pre_ll(ROFF_TERM_ARGS)
+{
+ term_setwidth(p, n->child != NULL ? n->child->string : NULL);
+}
+
+static void
+roff_term_pre_mc(ROFF_TERM_ARGS)
+{
+ if (p->col) {
+ p->flags |= TERMP_NOBREAK;
+ term_flushln(p);
+ p->flags &= ~(TERMP_NOBREAK | TERMP_NOSPACE);
+ }
+ if (n->child != NULL) {
+ p->mc = n->child->string;
+ p->flags |= TERMP_NEWMC;
+ } else
+ p->flags |= TERMP_ENDMC;
+}
+
+static void
+roff_term_pre_po(ROFF_TERM_ARGS)
+{
+ struct roffsu su;
+ static int po, polast;
+ int ponew;
+
+ if (n->child != NULL &&
+ a2roffsu(n->child->string, &su, SCALE_EM) != NULL) {
+ ponew = term_hen(p, &su);
+ if (*n->child->string == '+' ||
+ *n->child->string == '-')
+ ponew += po;
+ } else
+ ponew = polast;
+ polast = po;
+ po = ponew;
+
+ ponew = po - polast + (int)p->tcol->offset;
+ p->tcol->offset = ponew > 0 ? ponew : 0;
+}
+
+static void
+roff_term_pre_sp(ROFF_TERM_ARGS)
+{
+ struct roffsu su;
+ int len;
+
+ if (n->child != NULL) {
+ if (a2roffsu(n->child->string, &su, SCALE_VS) == NULL)
+ su.scale = 1.0;
+ len = term_vspan(p, &su);
+ } else
+ len = 1;
+
+ if (len < 0)
+ p->skipvsp -= len;
+ else
+ while (len--)
+ term_vspace(p);
+
+ roff_term_pre_br(p, n);
+}
+
+static void
+roff_term_pre_ta(ROFF_TERM_ARGS)
+{
+ term_tab_set(p, NULL);
+ for (n = n->child; n != NULL; n = n->next)
+ term_tab_set(p, n->string);
+}
+
+static void
+roff_term_pre_ti(ROFF_TERM_ARGS)
+{
+ struct roffsu su;
+ const char *cp;
+ int len, sign;
+
+ roff_term_pre_br(p, n);
+
+ if (n->child == NULL)
+ return;
+ cp = n->child->string;
+ if (*cp == '+') {
+ sign = 1;
+ cp++;
+ } else if (*cp == '-') {
+ sign = -1;
+ cp++;
+ } else
+ sign = 0;
+
+ if (a2roffsu(cp, &su, SCALE_EM) == NULL)
+ return;
+ len = term_hen(p, &su);
+
+ if (sign == 0) {
+ p->ti = len - p->tcol->offset;
+ p->tcol->offset = len;
+ } else if (sign == 1) {
+ p->ti = len;
+ p->tcol->offset += len;
+ } else if ((size_t)len < p->tcol->offset) {
+ p->ti = -len;
+ p->tcol->offset -= len;
+ } else {
+ p->ti = -p->tcol->offset;
+ p->tcol->offset = 0;
+ }
+}
git.ckatri.com / mandoc.git / blobdiff