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📄 INSTALL(6.86 KB)
📄 LICENSE(2.46 KB)
📄 Makefile(15.29 KB)
📄 Makefile.depend(5.65 KB)
📄 NEWS(60.04 KB)
📄 TODO(23.98 KB)
📄 apropos.1(10.66 KB)
📄 arch.c(1.94 KB)
📄 att.c(1.62 KB)
📄 catman.8(4.49 KB)
📄 catman.c(5.52 KB)
📄 cgi.c(27.06 KB)
📄 cgi.h.example(220 B)
📄 chars.c(13.24 KB)
📄 compat_err.c(2.68 KB)
📄 compat_fts.c(17.42 KB)
📄 compat_fts.h(4.09 KB)
📄 compat_getline.c(1.59 KB)
📄 compat_getsubopt.c(2.89 KB)
📄 compat_isblank.c(986 B)
📄 compat_mkdtemp.c(1.59 KB)
📄 compat_ohash.c(6.82 KB)
📄 compat_ohash.h(2.63 KB)
📄 compat_progname.c(1.05 KB)
📄 compat_reallocarray.c(1.49 KB)
📄 compat_recallocarray.c(2.88 KB)
📄 compat_strcasestr.c(2.38 KB)
📄 compat_stringlist.c(2.71 KB)
📄 compat_stringlist.h(1.73 KB)
📄 compat_strlcat.c(1.71 KB)
📄 compat_strlcpy.c(1.59 KB)
📄 compat_strndup.c(1.3 KB)
📄 compat_strsep.c(2.55 KB)
📄 compat_strtonum.c(1.88 KB)
📄 compat_vasprintf.c(1.55 KB)
📄 config.h(1.33 KB)
📄 configure(17.5 KB)
📄 configure.local.example(11.37 KB)
📄 dba.c(13.02 KB)
📄 dba.h(1.73 KB)
📄 dba_array.c(4.23 KB)
📄 dba_array.h(2 KB)
📄 dba_read.c(2.33 KB)
📄 dba_write.c(2.42 KB)
📄 dba_write.h(1.23 KB)
📄 dbm.c(9.28 KB)
📄 dbm.h(1.94 KB)
📄 dbm_map.c(4.67 KB)
📄 dbm_map.h(1.2 KB)
📄 demandoc.1(2.64 KB)
📄 demandoc.c(5.21 KB)
📄 eqn.7(12.07 KB)
📄 eqn.c(27.21 KB)
📄 eqn.h(2.19 KB)
📄 eqn_html.c(5.91 KB)
📄 eqn_parse.h(1.96 KB)
📄 eqn_term.c(4.83 KB)
📄 gmdiff(1.74 KB)
📄 html.c(19.34 KB)
📄 html.h(3.86 KB)
📄 lib.c(1.07 KB)
📄 lib.in(8.96 KB)
📄 libman.h(1.66 KB)
📄 libmandoc.h(3.21 KB)
📄 libmdoc.h(2.97 KB)
📄 main.c(28.93 KB)
📄 main.h(2.06 KB)
📄 makewhatis.8(4.78 KB)
📄 man-cgi.css(464 B)
📄 man.1(9.33 KB)
📄 man.7(16.8 KB)
📄 man.c(8.62 KB)
📄 man.cgi.3(7.83 KB)
📄 man.cgi.8(11.02 KB)
📄 man.conf.5(3.92 KB)
📄 man.h(991 B)
📄 man.options.1(21.05 KB)
📄 man_html.c(13.39 KB)
📄 man_macro.c(11.4 KB)
📄 man_term.c(25.6 KB)
📄 man_validate.c(11.84 KB)
📄 manconf.h(1.56 KB)
📄 mandoc.1(54.89 KB)
📄 mandoc.3(12.5 KB)
📄 mandoc.c(12.41 KB)
📄 mandoc.css(8.63 KB)
📄 mandoc.db.5(5.74 KB)
📄 mandoc.h(14.92 KB)
📄 mandoc_aux.c(2.42 KB)
📄 mandoc_aux.h(1.31 KB)
📄 mandoc_char.7(29.23 KB)
📄 mandoc_escape.3(9.33 KB)
📄 mandoc_headers.3(12.41 KB)
📄 mandoc_html.3(7.42 KB)
📄 mandoc_malloc.3(4.46 KB)
📄 mandoc_msg.c(8.92 KB)
📄 mandoc_ohash.c(1.58 KB)
📄 mandoc_ohash.h(1004 B)
📄 mandoc_parse.h(1.82 KB)
📄 mandoc_xr.c(2.75 KB)
📄 mandoc_xr.h(1.17 KB)
📄 mandocd.8(4.59 KB)
📄 mandocd.c(5.98 KB)
📄 mandocdb.c(55.16 KB)
📄 manpath.c(7.73 KB)
📄 manpath.h(1.22 KB)
📄 mansearch.3(3.26 KB)
📄 mansearch.c(18.99 KB)
📄 mansearch.h(4.03 KB)
📄 mchars_alloc.3(5.24 KB)
📄 mdoc.7(73.34 KB)
📄 mdoc.c(9.99 KB)
📄 mdoc.h(3.96 KB)
📄 mdoc_argv.c(16.19 KB)
📄 mdoc_html.c(36.48 KB)
📄 mdoc_macro.c(39.55 KB)
📄 mdoc_man.c(37.07 KB)
📄 mdoc_markdown.c(33.41 KB)
📄 mdoc_state.c(5.24 KB)
📄 mdoc_term.c(43.69 KB)
📄 mdoc_validate.c(61.85 KB)
📄 msec.c(1.09 KB)
📄 msec.in(1.48 KB)
📄 out.c(13.61 KB)
📄 out.h(2.26 KB)
📄 preconv.c(3.84 KB)
📄 predefs.in(2.05 KB)
📄 read.c(16.44 KB)
📄 roff.7(61.96 KB)
📄 roff.c(98.93 KB)
📄 roff.h(8.85 KB)
📄 roff_html.c(2.92 KB)
📄 roff_int.h(4.08 KB)
📄 roff_term.c(5.36 KB)
📄 roff_validate.c(3.41 KB)
📄 soelim.1(2.6 KB)
📄 soelim.c(3.76 KB)
📄 st.c(4.33 KB)
📄 tag.c(6.65 KB)
📄 tag.h(1.09 KB)
📄 tbl.3(6.9 KB)
📄 tbl.7(10.91 KB)
📄 tbl.c(3.89 KB)
📄 tbl.h(4.43 KB)
📄 tbl_data.c(7.3 KB)
📄 tbl_html.c(5.74 KB)
📄 tbl_int.h(2.09 KB)
📄 tbl_layout.c(8.06 KB)
📄 tbl_opts.c(3.77 KB)
📄 tbl_parse.h(1.31 KB)
📄 tbl_term.c(24.42 KB)
📄 term.c(24.4 KB)
📄 term.h(6.14 KB)
📄 term_ascii.c(9.88 KB)
📄 term_ps.c(27.41 KB)
📄 term_tab.c(3 KB)
📄 test-EFTYPE.c(56 B)
📄 test-O_DIRECTORY.c(88 B)
📄 test-PATH_MAX.c(1.02 KB)
📄 test-be32toh.c(147 B)
📄 test-cmsg.c(174 B)
📄 test-dirent-namlen.c(124 B)
📄 test-err.c(994 B)
📄 test-fgetln.c(147 B)
📄 test-fts.c(964 B)
📄 test-getline.c(186 B)
📄 test-getsubopt.c(1.31 KB)
📄 test-isblank.c(96 B)
📄 test-mkdtemp.c(175 B)
📄 test-nanosleep.c(239 B)
📄 test-noop.c(30 B)
📄 test-ntohl.c(91 B)
📄 test-ohash.c(585 B)
📄 test-pledge.c(73 B)
📄 test-progname.c(118 B)
📄 test-reallocarray.c(75 B)
📄 test-recallocarray.c(132 B)
📄 test-recvmsg.c(100 B)
📄 test-rewb-bsd.c(618 B)
📄 test-rewb-sysv.c(610 B)
📄 test-sandbox_init.c(186 B)
📄 test-strcasestr.c(131 B)
📄 test-stringlist.c(1.14 KB)
📄 test-strlcat.c(166 B)
📄 test-strlcpy.c(148 B)
📄 test-strndup.c(141 B)
📄 test-strptime.c(212 B)
📄 test-strsep.c(183 B)
📄 test-strtonum.c(1.25 KB)
📄 test-vasprintf.c(1.25 KB)
📄 test-wchar.c(1.58 KB)
📄 tree.c(8.17 KB)

Editing: eqn_term.c

/*	$Id: eqn_term.c,v 1.19 2018/12/13 05:23:38 schwarze Exp $ */
/*
 * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 * Copyright (c) 2014, 2015, 2017 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.
 *
 * 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.
 */
#include "config.h"

#include <sys/types.h>

#include <assert.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "eqn.h"
#include "out.h"
#include "term.h"

static	const enum termfont fontmap[EQNFONT__MAX] = {
	TERMFONT_NONE, /* EQNFONT_NONE */
	TERMFONT_NONE, /* EQNFONT_ROMAN */
	TERMFONT_BOLD, /* EQNFONT_BOLD */
	TERMFONT_BOLD, /* EQNFONT_FAT */
	TERMFONT_UNDER /* EQNFONT_ITALIC */
};

static void	eqn_box(struct termp *, const struct eqn_box *);

void
term_eqn(struct termp *p, const struct eqn_box *bp)
{

eqn_box(p, bp);
	p->flags &= ~TERMP_NOSPACE;
}

static void
eqn_box(struct termp *p, const struct eqn_box *bp)
{
	const struct eqn_box *child;
	const char *cp;
	int delim;

/* Delimiters around this box? */

if ((bp->type == EQN_LIST && bp->expectargs > 1) ||
	    (bp->type == EQN_PILE && (bp->prev || bp->next)) ||
	    (bp->parent != NULL && (bp->parent->pos == EQNPOS_SQRT ||
	    /* Diacritic followed by ^ or _. */
	    ((bp->top != NULL || bp->bottom != NULL) &&
	     bp->parent->type == EQN_SUBEXPR &&
	     bp->parent->pos != EQNPOS_OVER && bp->next != NULL) ||
	    /* Nested over, sub, sup, from, to. */
	    (bp->type == EQN_SUBEXPR && bp->pos != EQNPOS_SQRT &&
	     ((bp->parent->type == EQN_LIST && bp->expectargs == 1) ||
	      (bp->parent->type == EQN_SUBEXPR &&
	       bp->pos != EQNPOS_SQRT)))))) {
		if ((bp->parent->type == EQN_SUBEXPR && bp->prev != NULL) ||
		    (bp->type == EQN_LIST &&
		     bp->first != NULL &&
		     bp->first->type != EQN_PILE &&
		     bp->first->type != EQN_MATRIX &&
		     bp->prev != NULL &&
		     (bp->prev->type == EQN_LIST ||
		      (bp->prev->type == EQN_TEXT &&
		       (*bp->prev->text == '\\' ||
		        isalpha((unsigned char)*bp->prev->text))))))
			p->flags |= TERMP_NOSPACE;
		term_word(p, bp->left != NULL ? bp->left : "(");
		p->flags |= TERMP_NOSPACE;
		delim = 1;
	} else
		delim = 0;

/* Handle Fonts and text. */

if (bp->font != EQNFONT_NONE)
		term_fontpush(p, fontmap[(int)bp->font]);

if (bp->text != NULL) {
		if (strchr("!\"'),.:;?]}", *bp->text) != NULL)
			p->flags |= TERMP_NOSPACE;
		term_word(p, bp->text);
		if ((cp = strchr(bp->text, '\0')) > bp->text &&
		    (strchr("\"'([{", cp[-1]) != NULL ||
		     (bp->prev == NULL && (cp[-1] == '-' ||
		      (cp >= bp->text + 5 &&
		       strcmp(cp - 5, "\\[mi]") == 0)))))
			p->flags |= TERMP_NOSPACE;
	}

/* Special box types. */

if (bp->pos == EQNPOS_SQRT) {
		term_word(p, "\\(sr");
		if (bp->first != NULL) {
			p->flags |= TERMP_NOSPACE;
			eqn_box(p, bp->first);
		}
	} else if (bp->type == EQN_SUBEXPR) {
		child = bp->first;
		eqn_box(p, child);
		p->flags |= TERMP_NOSPACE;
		term_word(p, bp->pos == EQNPOS_OVER ? "/" :
		    (bp->pos == EQNPOS_SUP ||
		     bp->pos == EQNPOS_TO) ? "^" : "_");
		child = child->next;
		if (child != NULL) {
			p->flags |= TERMP_NOSPACE;
			eqn_box(p, child);
			if (bp->pos == EQNPOS_FROMTO ||
			    bp->pos == EQNPOS_SUBSUP) {
				p->flags |= TERMP_NOSPACE;
				term_word(p, "^");
				p->flags |= TERMP_NOSPACE;
				child = child->next;
				if (child != NULL)
					eqn_box(p, child);
			}
		}
	} else {
		child = bp->first;
		if (bp->type == EQN_MATRIX &&
		    child != NULL &&
		    child->type == EQN_LIST &&
		    child->expectargs > 1)
			child = child->first;
		while (child != NULL) {
			eqn_box(p,
			    bp->type == EQN_PILE &&
			    child->type == EQN_LIST &&
			    child->expectargs > 1 &&
			    child->args == 1 ?
			    child->first : child);
			child = child->next;
		}
	}

/* Handle Fonts and diacritics. */

if (bp->font != EQNFONT_NONE)
		term_fontpop(p);
	if (bp->top != NULL) {
		p->flags |= TERMP_NOSPACE;
		term_word(p, bp->top);
	}
	if (bp->bottom != NULL) {
		p->flags |= TERMP_NOSPACE;
		term_word(p, "_");
	}

/* Right delimiter after this box? */

if (delim) {
		p->flags |= TERMP_NOSPACE;
		term_word(p, bp->right != NULL ? bp->right : ")");
		if (bp->parent->type == EQN_SUBEXPR && bp->next != NULL)
			p->flags |= TERMP_NOSPACE;
	}
}

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Editing: eqn_term.c

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