version 1.1, 2017/05/04 22:16:09 |
version 1.15, 2018/08/10 20:40:45 |
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/* $OpenBSD$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2017 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2010,2014,2015,2017,2018 Ingo Schwarze <schwarze@openbsd.org> |
* |
* |
* 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 above |
* purpose with or without fee is hereby granted, provided that the above |
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#include <sys/types.h> |
#include <sys/types.h> |
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#include <assert.h> |
#include <assert.h> |
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#include <stddef.h> |
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#include "mandoc.h" |
#include "roff.h" |
#include "roff.h" |
#include "out.h" |
#include "out.h" |
#include "term.h" |
#include "term.h" |
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typedef void (*roff_term_pre_fp)(ROFF_TERM_ARGS); |
typedef void (*roff_term_pre_fp)(ROFF_TERM_ARGS); |
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static void roff_term_pre_br(ROFF_TERM_ARGS); |
static void roff_term_pre_br(ROFF_TERM_ARGS); |
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static void roff_term_pre_ce(ROFF_TERM_ARGS); |
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static void roff_term_pre_ft(ROFF_TERM_ARGS); |
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static void roff_term_pre_ll(ROFF_TERM_ARGS); |
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static void roff_term_pre_mc(ROFF_TERM_ARGS); |
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static void roff_term_pre_po(ROFF_TERM_ARGS); |
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static void roff_term_pre_sp(ROFF_TERM_ARGS); |
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static void roff_term_pre_ta(ROFF_TERM_ARGS); |
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static void roff_term_pre_ti(ROFF_TERM_ARGS); |
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static const roff_term_pre_fp roff_term_pre_acts[ROFF_MAX] = { |
static const roff_term_pre_fp roff_term_pre_acts[ROFF_MAX] = { |
roff_term_pre_br, /* br */ |
roff_term_pre_br, /* br */ |
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roff_term_pre_ce, /* ce */ |
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roff_term_pre_ft, /* ft */ |
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roff_term_pre_ll, /* ll */ |
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roff_term_pre_mc, /* mc */ |
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roff_term_pre_po, /* po */ |
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roff_term_pre_ce, /* rj */ |
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roff_term_pre_sp, /* sp */ |
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roff_term_pre_ta, /* ta */ |
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roff_term_pre_ti, /* ti */ |
}; |
}; |
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Line 45 roff_term_pre_br(ROFF_TERM_ARGS) |
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Line 64 roff_term_pre_br(ROFF_TERM_ARGS) |
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{ |
{ |
term_newln(p); |
term_newln(p); |
if (p->flags & TERMP_BRIND) { |
if (p->flags & TERMP_BRIND) { |
p->offset = p->rmargin; |
p->tcol->offset = p->tcol->rmargin; |
p->rmargin = p->maxrmargin; |
p->tcol->rmargin = p->maxrmargin; |
p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND); |
p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND); |
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} |
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} |
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static void |
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roff_term_pre_ce(ROFF_TERM_ARGS) |
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{ |
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const struct roff_node *nc1, *nc2; |
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size_t len, lm; |
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roff_term_pre_br(p, n); |
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lm = p->tcol->offset; |
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nc1 = n->child->next; |
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while (nc1 != NULL) { |
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nc2 = nc1; |
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len = 0; |
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do { |
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if (nc2->type == ROFFT_TEXT) { |
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if (len) |
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len++; |
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len += term_strlen(p, nc2->string); |
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} |
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nc2 = nc2->next; |
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} while (nc2 != NULL && (nc2->type != ROFFT_TEXT || |
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(nc2->flags & NODE_LINE) == 0)); |
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p->tcol->offset = len >= p->tcol->rmargin ? 0 : |
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lm + len >= p->tcol->rmargin ? p->tcol->rmargin - len : |
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n->tok == ROFF_rj ? p->tcol->rmargin - len : |
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(lm + p->tcol->rmargin - len) / 2; |
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while (nc1 != nc2) { |
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if (nc1->type == ROFFT_TEXT) |
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term_word(p, nc1->string); |
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else |
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roff_term_pre(p, nc1); |
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nc1 = nc1->next; |
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} |
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p->flags |= TERMP_NOSPACE; |
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term_flushln(p); |
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} |
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p->tcol->offset = lm; |
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} |
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static void |
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roff_term_pre_ft(ROFF_TERM_ARGS) |
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{ |
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const char *cp; |
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if (*(cp = n->child->string) == 'C') |
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cp++; |
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switch (*cp) { |
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case '4': |
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case '3': |
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case 'B': |
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term_fontrepl(p, TERMFONT_BOLD); |
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break; |
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case '2': |
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case 'I': |
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term_fontrepl(p, TERMFONT_UNDER); |
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break; |
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case 'P': |
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term_fontlast(p); |
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break; |
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case '1': |
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case 'C': |
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case 'R': |
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term_fontrepl(p, TERMFONT_NONE); |
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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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static void |
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roff_term_pre_ll(ROFF_TERM_ARGS) |
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{ |
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term_setwidth(p, n->child != NULL ? n->child->string : NULL); |
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} |
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static void |
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roff_term_pre_mc(ROFF_TERM_ARGS) |
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{ |
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if (p->col) { |
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p->flags |= TERMP_NOBREAK; |
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term_flushln(p); |
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p->flags &= ~(TERMP_NOBREAK | TERMP_NOSPACE); |
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} |
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if (n->child != NULL) { |
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p->mc = n->child->string; |
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p->flags |= TERMP_NEWMC; |
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} else |
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p->flags |= TERMP_ENDMC; |
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} |
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static void |
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roff_term_pre_po(ROFF_TERM_ARGS) |
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{ |
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struct roffsu su; |
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static int po, polast; |
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int ponew; |
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if (n->child != NULL && |
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a2roffsu(n->child->string, &su, SCALE_EM) != NULL) { |
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ponew = term_hen(p, &su); |
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if (*n->child->string == '+' || |
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*n->child->string == '-') |
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ponew += po; |
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} else |
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ponew = polast; |
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polast = po; |
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po = ponew; |
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ponew = po - polast + (int)p->tcol->offset; |
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p->tcol->offset = ponew > 0 ? ponew : 0; |
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} |
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static void |
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roff_term_pre_sp(ROFF_TERM_ARGS) |
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{ |
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struct roffsu su; |
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int len; |
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if (n->child != NULL) { |
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if (a2roffsu(n->child->string, &su, SCALE_VS) == NULL) |
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su.scale = 1.0; |
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len = term_vspan(p, &su); |
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} else |
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len = 1; |
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if (len < 0) |
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p->skipvsp -= len; |
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else |
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while (len--) |
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term_vspace(p); |
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roff_term_pre_br(p, n); |
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} |
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static void |
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roff_term_pre_ta(ROFF_TERM_ARGS) |
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{ |
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term_tab_set(p, NULL); |
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for (n = n->child; n != NULL; n = n->next) |
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term_tab_set(p, n->string); |
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} |
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static void |
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roff_term_pre_ti(ROFF_TERM_ARGS) |
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{ |
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struct roffsu su; |
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const char *cp; |
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int len, sign; |
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roff_term_pre_br(p, n); |
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if (n->child == NULL) |
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return; |
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cp = n->child->string; |
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if (*cp == '+') { |
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sign = 1; |
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cp++; |
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} else if (*cp == '-') { |
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sign = -1; |
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cp++; |
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} else |
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sign = 0; |
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if (a2roffsu(cp, &su, SCALE_EM) == NULL) |
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return; |
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len = term_hen(p, &su); |
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if (sign == 0) { |
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p->ti = len - p->tcol->offset; |
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p->tcol->offset = len; |
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} else if (sign == 1) { |
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p->ti = len; |
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p->tcol->offset += len; |
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} else if ((size_t)len < p->tcol->offset) { |
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p->ti = -len; |
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p->tcol->offset -= len; |
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} else { |
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p->ti = -p->tcol->offset; |
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p->tcol->offset = 0; |
} |
} |
} |
} |