Return to roff_term.c CVS log

Up to [cvsweb.bsd.lv] / mandoc

Annotation of mandoc/roff_term.c, Revision 1.5

1.1       schwarze    1: /*     $OpenBSD$ */
                      2: /*
1.4       schwarze    3:  * Copyright (c) 2010, 2014, 2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
1.1       schwarze    4:  *
                      5:  * Permission to use, copy, modify, and distribute this software for any
                      6:  * purpose with or without fee is hereby granted, provided that the above
                      7:  * copyright notice and this permission notice appear in all copies.
                      8:  *
                      9:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     10:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     11:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     12:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     13:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     14:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     15:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     16:  */
                     17: #include <sys/types.h>
                     18:
                     19: #include <assert.h>
1.3       schwarze   20: #include <stddef.h>
1.1       schwarze   21:
                     22: #include "roff.h"
                     23: #include "out.h"
                     24: #include "term.h"
                     25:
                     26: #define        ROFF_TERM_ARGS struct termp *p, const struct roff_node *n
                     27:
                     28: typedef        void    (*roff_term_pre_fp)(ROFF_TERM_ARGS);
                     29:
                     30: static void      roff_term_pre_br(ROFF_TERM_ARGS);
1.2       schwarze   31: static void      roff_term_pre_ft(ROFF_TERM_ARGS);
1.3       schwarze   32: static void      roff_term_pre_ll(ROFF_TERM_ARGS);
1.4       schwarze   33: static void      roff_term_pre_sp(ROFF_TERM_ARGS);
1.5     ! schwarze   34: static void      roff_term_pre_ta(ROFF_TERM_ARGS);
1.1       schwarze   35:
                     36: static const roff_term_pre_fp roff_term_pre_acts[ROFF_MAX] = {
                     37:        roff_term_pre_br,  /* br */
1.2       schwarze   38:        roff_term_pre_ft,  /* ft */
1.3       schwarze   39:        roff_term_pre_ll,  /* ft */
1.5     ! schwarze   40:        roff_term_pre_sp,  /* sp */
        !            41:        roff_term_pre_ta,  /* ta */
1.1       schwarze   42: };
                     43:
                     44:
                     45: void
                     46: roff_term_pre(struct termp *p, const struct roff_node *n)
                     47: {
                     48:        assert(n->tok < ROFF_MAX);
                     49:        (*roff_term_pre_acts[n->tok])(p, n);
                     50: }
                     51:
                     52: static void
                     53: roff_term_pre_br(ROFF_TERM_ARGS)
                     54: {
                     55:        term_newln(p);
                     56:        if (p->flags & TERMP_BRIND) {
                     57:                p->offset = p->rmargin;
                     58:                p->rmargin = p->maxrmargin;
                     59:                p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);
1.2       schwarze   60:        }
                     61: }
                     62:
                     63: static void
                     64: roff_term_pre_ft(ROFF_TERM_ARGS)
                     65: {
                     66:        switch (*n->child->string) {
                     67:        case '4':
                     68:        case '3':
                     69:        case 'B':
                     70:                term_fontrepl(p, TERMFONT_BOLD);
                     71:                break;
                     72:        case '2':
                     73:        case 'I':
                     74:                term_fontrepl(p, TERMFONT_UNDER);
                     75:                break;
                     76:        case 'P':
                     77:                term_fontlast(p);
                     78:                break;
                     79:        case '1':
                     80:        case 'C':
                     81:        case 'R':
                     82:                term_fontrepl(p, TERMFONT_NONE);
                     83:                break;
                     84:        default:
                     85:                break;
1.1       schwarze   86:        }
1.3       schwarze   87: }
                     88:
                     89: static void
                     90: roff_term_pre_ll(ROFF_TERM_ARGS)
                     91: {
                     92:        term_setwidth(p, n->child != NULL ? n->child->string : NULL);
1.4       schwarze   93: }
                     94:
                     95: static void
                     96: roff_term_pre_sp(ROFF_TERM_ARGS)
                     97: {
                     98:        struct roffsu    su;
                     99:        int              len;
                    100:
                    101:        if (n->child != NULL) {
                    102:                if (a2roffsu(n->child->string, &su, SCALE_VS) == 0)
                    103:                        su.scale = 1.0;
                    104:                len = term_vspan(p, &su);
                    105:        } else
                    106:                len = 1;
                    107:
                    108:        if (len < 0)
                    109:                p->skipvsp -= len;
                    110:        else
                    111:                while (len--)
                    112:                        term_vspace(p);
                    113:
                    114:        roff_term_pre_br(p, n);
1.5     ! schwarze  115: }
        !           116:
        !           117: static void
        !           118: roff_term_pre_ta(ROFF_TERM_ARGS)
        !           119: {
        !           120:        term_tab_set(p, NULL);
        !           121:        for (n = n->child; n != NULL; n = n->next)
        !           122:                term_tab_set(p, n->string);
1.1       schwarze  123: }