Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/mandoc/eqn_term.c	Lines:	88	92	95.7 %
Date:	2017-11-13	Branches:	109	126	86.5 %


/*	$OpenBSD: eqn_term.c,v 1.13 2017/08/23 21:56:04 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 <sys/types.h>

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

#include "mandoc.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, "sqrt");
		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;
	}
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: eqn_term.c,v 1.13 2017/08/23 21:56:04 schwarze Exp $ */
2			/*
3			* Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4			* Copyright (c) 2014, 2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
5			*
6			* Permission to use, copy, modify, and distribute this software for any
7			* purpose with or without fee is hereby granted, provided that the above
8			* copyright notice and this permission notice appear in all copies.
9			*
10			* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11			* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12			* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13			* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14			* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15			* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16			* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17			*/
18			#include <sys/types.h>
19
20			#include <assert.h>
21			#include <ctype.h>
22			#include <stdio.h>
23			#include <stdlib.h>
24			#include <string.h>
25
26			#include "mandoc.h"
27			#include "out.h"
28			#include "term.h"
29
30			static const enum termfont fontmap[EQNFONT__MAX] = {
31			TERMFONT_NONE, /* EQNFONT_NONE */
32			TERMFONT_NONE, /* EQNFONT_ROMAN */
33			TERMFONT_BOLD, /* EQNFONT_BOLD */
34			TERMFONT_BOLD, /* EQNFONT_FAT */
35			TERMFONT_UNDER /* EQNFONT_ITALIC */
36			};
37
38			static void eqn_box(struct termp , const struct eqn_box );
39
40
41			void
42			term_eqn(struct termp p, const struct eqn_box bp)
43			{
44
45		204	eqn_box(p, bp);
46		102	p->flags &= ~TERMP_NOSPACE;
47		102	}
48
49			static void
50			eqn_box(struct termp p, const struct eqn_box bp)
51			{
52			const struct eqn_box *child;
53			const char *cp;
54			int delim;
55
56			/* Delimiters around this box? */
57
58	✓✓✓✓ ✓✗	2703	if ((bp->type == EQN_LIST && bp->expectargs > 1) \|\|
59	✓✓✓✓ ✓✓	1212	(bp->type == EQN_PILE && (bp->prev \|\| bp->next)) \|\|
60	✓✓✓✓	2268	(bp->parent != NULL && (bp->parent->pos == EQNPOS_SQRT \|\|
61			/* Diacritic followed by ^ or _. */
62	✓✓✓✓	2094	((bp->top != NULL \|\| bp->bottom != NULL) &&
63	✓✓	63	bp->parent->type == EQN_SUBEXPR &&
64	✓✓✓✓	54	bp->parent->pos != EQNPOS_OVER && bp->next != NULL) \|\|
65			/* Nested over, sub, sup, from, to. */
66	✓✓✓✓	1221	(bp->type == EQN_SUBEXPR && bp->pos != EQNPOS_SQRT &&
67	✓✓✓✗	168	((bp->parent->type == EQN_LIST && bp->expectargs == 1) \|\|
68	✓✓	141	(bp->parent->type == EQN_SUBEXPR &&
69		39	bp->pos != EQNPOS_SQRT)))))) {
70	✓✓✓✓ ✗✗	192	if ((bp->parent->type == EQN_SUBEXPR && bp->prev != NULL) \|\|
71	✓✓	72	(bp->type == EQN_LIST &&
72	✓✓	48	bp->first != NULL &&
73	✓✓	45	bp->first->type != EQN_PILE &&
74	✓✓	42	bp->first->type != EQN_MATRIX &&
75	✓✓	33	bp->prev != NULL &&
76	✗✓	3	(bp->prev->type == EQN_LIST \|\|
77			(bp->prev->type == EQN_TEXT &&
78			(*bp->prev->text == '\\' \|\|
79			isalpha((unsigned char)*bp->prev->text))))))
80		42	p->flags \|= TERMP_NOSPACE;
81	✓✓	237	term_word(p, bp->left != NULL ? bp->left : "(");
82		111	p->flags \|= TERMP_NOSPACE;
83			delim = 1;
84		111	} else
85			delim = 0;
86
87			/* Handle Fonts and text. */
88
89	✓✓	1233	if (bp->font != EQNFONT_NONE)
90		867	term_fontpush(p, fontmap[(int)bp->font]);
91
92	✓✓	1233	if (bp->text != NULL) {
93	✓✓	750	if (strchr("!\"'),.:;?]}", *bp->text) != NULL)
94		21	p->flags \|= TERMP_NOSPACE;
95		750	term_word(p, bp->text);
96	✓✓✗✓	804	if ((cp = strchr(bp->text, '\0')) > bp->text &&
97	✓✗	747	(strchr("\"'([{", cp[-1]) != NULL \|\|
98	✓✓✓✗	1038	(bp->prev == NULL && (cp[-1] == '-' \|\|
99	✓✓	291	(cp >= bp->text + 5 &&
100		54	strcmp(cp - 5, "\\[mi]") == 0)))))
101			p->flags \|= TERMP_NOSPACE;
102			}
103
104			/* Special box types. */
105
106	✓✓	1233	if (bp->pos == EQNPOS_SQRT) {
107		21	term_word(p, "sqrt");
108	✓✓	21	if (bp->first != NULL) {
109		18	p->flags \|= TERMP_NOSPACE;
110		18	eqn_box(p, bp->first);
111		18	}
112	✓✓	1212	} else if (bp->type == EQN_SUBEXPR) {
113			child = bp->first;
114		141	eqn_box(p, child);
115		141	p->flags \|= TERMP_NOSPACE;
116	✓✓	390	term_word(p, bp->pos == EQNPOS_OVER ? "/" :
117	✓✓	297	(bp->pos == EQNPOS_SUP \|\|
118		81	bp->pos == EQNPOS_TO) ? "^" : "_");
119		141	child = child->next;
120	✓✓	141	if (child != NULL) {
121		129	p->flags \|= TERMP_NOSPACE;
122		129	eqn_box(p, child);
123	✓✓✓✓	243	if (bp->pos == EQNPOS_FROMTO \|\|
124		114	bp->pos == EQNPOS_SUBSUP) {
125		36	p->flags \|= TERMP_NOSPACE;
126		36	term_word(p, "^");
127		36	p->flags \|= TERMP_NOSPACE;
128		36	child = child->next;
129	✓✓	36	if (child != NULL)
130		30	eqn_box(p, child);
131			}
132			}
133			} else {
134			child = bp->first;
135	✓✓✓✗	2148	if (bp->type == EQN_MATRIX &&
136		1071	child != NULL &&
137	✓✗	6	child->type == EQN_LIST &&
138		6	child->expectargs > 1)
139		6	child = child->first;
140	✓✓	3768	while (child != NULL) {
141		813	eqn_box(p,
142	✓✓✓✗	2463	bp->type == EQN_PILE &&
143	✓✗	24	child->type == EQN_LIST &&
144	✓✗	24	child->expectargs > 1 &&
145		24	child->args == 1 ?
146		24	child->first : child);
147		813	child = child->next;
148			}
149			}
150
151			/* Handle Fonts and diacritics. */
152
153	✓✓	1233	if (bp->font != EQNFONT_NONE)
154		867	term_fontpop(p);
155	✓✓	1233	if (bp->top != NULL) {
156		57	p->flags \|= TERMP_NOSPACE;
157		57	term_word(p, bp->top);
158		57	}
159	✓✓	1233	if (bp->bottom != NULL) {
160		9	p->flags \|= TERMP_NOSPACE;
161		9	term_word(p, "_");
162		9	}
163
164			/* Right delimiter after this box? */
165
166	✓✓	1233	if (delim) {
167		111	p->flags \|= TERMP_NOSPACE;
168	✓✓	237	term_word(p, bp->right != NULL ? bp->right : ")");
169	✓✓✓✓	192	if (bp->parent->type == EQN_SUBEXPR && bp->next != NULL)
170		33	p->flags \|= TERMP_NOSPACE;
171			}
172		1233	}