Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/mandoc/eqn_html.c	Lines:	120	129	93.0 %
Date:	2017-11-13	Branches:	100	131	76.3 %


/*	$OpenBSD: eqn_html.c,v 1.13 2017/07/14 13:32:27 schwarze Exp $ */
/*
 * Copyright (c) 2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
 * Copyright (c) 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 "html.h"

static void
eqn_box(struct html *p, const struct eqn_box *bp)
{
	struct tag	*post, *row, *cell, *t;
	const struct eqn_box *child, *parent;
	const char	*cp;
	size_t		 i, j, rows;
	enum htmltag	 tag;
	enum eqn_fontt	 font;

	if (NULL == bp)
		return;

	post = NULL;

	/*
	 * Special handling for a matrix, which is presented to us in
	 * column order, but must be printed in row-order.
	 */
	if (EQN_MATRIX == bp->type) {
		if (NULL == bp->first)
			goto out;
		if (bp->first->type != EQN_LIST ||
		    bp->first->expectargs == 1) {
			eqn_box(p, bp->first);
			goto out;
		}
		if (NULL == (parent = bp->first->first))
			goto out;
		/* Estimate the number of rows, first. */
		if (NULL == (child = parent->first))
			goto out;
		for (rows = 0; NULL != child; rows++)
			child = child->next;
		/* Print row-by-row. */
		post = print_otag(p, TAG_MTABLE, "");
		for (i = 0; i < rows; i++) {
			parent = bp->first->first;
			row = print_otag(p, TAG_MTR, "");
			while (NULL != parent) {
				child = parent->first;
				for (j = 0; j < i; j++) {
					if (NULL == child)
						break;
					child = child->next;
				}
				cell = print_otag(p, TAG_MTD, "");
				/*
				 * If we have no data for this
				 * particular cell, then print a
				 * placeholder and continue--don't puke.
				 */
				if (NULL != child)
					eqn_box(p, child->first);
				print_tagq(p, cell);
				parent = parent->next;
			}
			print_tagq(p, row);
		}
		goto out;
	}

	switch (bp->pos) {
	case EQNPOS_TO:
		post = print_otag(p, TAG_MOVER, "");
		break;
	case EQNPOS_SUP:
		post = print_otag(p, TAG_MSUP, "");
		break;
	case EQNPOS_FROM:
		post = print_otag(p, TAG_MUNDER, "");
		break;
	case EQNPOS_SUB:
		post = print_otag(p, TAG_MSUB, "");
		break;
	case EQNPOS_OVER:
		post = print_otag(p, TAG_MFRAC, "");
		break;
	case EQNPOS_FROMTO:
		post = print_otag(p, TAG_MUNDEROVER, "");
		break;
	case EQNPOS_SUBSUP:
		post = print_otag(p, TAG_MSUBSUP, "");
		break;
	case EQNPOS_SQRT:
		post = print_otag(p, TAG_MSQRT, "");
		break;
	default:
		break;
	}

	if (bp->top || bp->bottom) {
		assert(NULL == post);
		if (bp->top && NULL == bp->bottom)
			post = print_otag(p, TAG_MOVER, "");
		else if (bp->top && bp->bottom)
			post = print_otag(p, TAG_MUNDEROVER, "");
		else if (bp->bottom)
			post = print_otag(p, TAG_MUNDER, "");
	}

	if (EQN_PILE == bp->type) {
		assert(NULL == post);
		if (bp->first != NULL &&
		    bp->first->type == EQN_LIST &&
		    bp->first->expectargs > 1)
			post = print_otag(p, TAG_MTABLE, "");
	} else if (bp->type == EQN_LIST && bp->expectargs > 1 &&
	    bp->parent && bp->parent->type == EQN_PILE) {
		assert(NULL == post);
		post = print_otag(p, TAG_MTR, "");
		print_otag(p, TAG_MTD, "");
	}

	if (bp->text != NULL) {
		assert(post == NULL);
		tag = TAG_MI;
		cp = bp->text;
		if (isdigit((unsigned char)cp[0]) ||
		    (cp[0] == '.' && isdigit((unsigned char)cp[1]))) {
			tag = TAG_MN;
			while (*++cp != '\0') {
				if (*cp != '.' &&
				    isdigit((unsigned char)*cp) == 0) {
					tag = TAG_MI;
					break;
				}
			}
		} else if (*cp != '\0' && isalpha((unsigned char)*cp) == 0) {
			tag = TAG_MO;
			while (*cp != '\0') {
				if (cp[0] == '\\' && cp[1] != '\0') {
					cp++;
					mandoc_escape(&cp, NULL, NULL);
				} else if (isalnum((unsigned char)*cp)) {
					tag = TAG_MI;
					break;
				} else
					cp++;
			}
		}
		font = bp->font;
		if (bp->text[0] != '\0' &&
		    (((tag == TAG_MN || tag == TAG_MO) &&
		      font == EQNFONT_ROMAN) ||
		     (tag == TAG_MI && font == (bp->text[1] == '\0' ?
		      EQNFONT_ITALIC : EQNFONT_ROMAN))))
			font = EQNFONT_NONE;
		switch (font) {
		case EQNFONT_NONE:
			post = print_otag(p, tag, "");
			break;
		case EQNFONT_ROMAN:
			post = print_otag(p, tag, "?", "fontstyle", "normal");
			break;
		case EQNFONT_BOLD:
		case EQNFONT_FAT:
			post = print_otag(p, tag, "?", "fontweight", "bold");
			break;
		case EQNFONT_ITALIC:
			post = print_otag(p, tag, "?", "fontstyle", "italic");
			break;
		default:
			abort();
		}
		print_text(p, bp->text);
	} else if (NULL == post) {
		if (NULL != bp->left || NULL != bp->right)
			post = print_otag(p, TAG_MFENCED, "??",
			    "open", bp->left == NULL ? "" : bp->left,
			    "close", bp->right == NULL ? "" : bp->right);
		if (NULL == post)
			post = print_otag(p, TAG_MROW, "");
		else
			print_otag(p, TAG_MROW, "");
	}

	eqn_box(p, bp->first);

out:
	if (NULL != bp->bottom) {
		t = print_otag(p, TAG_MO, "");
		print_text(p, bp->bottom);
		print_tagq(p, t);
	}
	if (NULL != bp->top) {
		t = print_otag(p, TAG_MO, "");
		print_text(p, bp->top);
		print_tagq(p, t);
	}

	if (NULL != post)
		print_tagq(p, post);

	eqn_box(p, bp->next);
}

void
print_eqn(struct html *p, const struct eqn_box *bp)
{
	struct tag	*t;

	if (bp->first == NULL)
		return;

	t = print_otag(p, TAG_MATH, "c", "eqn");

	p->flags |= HTML_NONOSPACE;
	eqn_box(p, bp);
	p->flags &= ~HTML_NONOSPACE;

	print_tagq(p, t);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: eqn_html.c,v 1.13 2017/07/14 13:32:27 schwarze Exp $ */
2			/*
3			* Copyright (c) 2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
4			* Copyright (c) 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 "html.h"
29
30			static void
31			eqn_box(struct html p, const struct eqn_box bp)
32			{
33			struct tag post, row, cell, t;
34			const struct eqn_box child, parent;
35		4290	const char *cp;
36			size_t i, j, rows;
37			enum htmltag tag;
38			enum eqn_fontt font;
39
40	✓✓	2145	if (NULL == bp)
41		1098	return;
42
43			post = NULL;
44
45			/*
46			* Special handling for a matrix, which is presented to us in
47			* column order, but must be printed in row-order.
48			*/
49	✓✓	1047	if (EQN_MATRIX == bp->type) {
50	✓✓	9	if (NULL == bp->first)
51			goto out;
52	✓✗✗✓	12	if (bp->first->type != EQN_LIST \|\|
53		6	bp->first->expectargs == 1) {
54			eqn_box(p, bp->first);
55			goto out;
56			}
57	✓✓	6	if (NULL == (parent = bp->first->first))
58			goto out;
59			/* Estimate the number of rows, first. */
60	✓✗	3	if (NULL == (child = parent->first))
61			goto out;
62	✓✓	18	for (rows = 0; NULL != child; rows++)
63		6	child = child->next;
64			/* Print row-by-row. */
65		3	post = print_otag(p, TAG_MTABLE, "");
66	✓✓	18	for (i = 0; i < rows; i++) {
67		6	parent = bp->first->first;
68		6	row = print_otag(p, TAG_MTR, "");
69	✓✓	36	while (NULL != parent) {
70		12	child = parent->first;
71	✓✓	54	for (j = 0; j < i; j++) {
72		18	if (NULL == child)
73			break;
74		6	child = child->next;
75			}
76		12	cell = print_otag(p, TAG_MTD, "");
77			/*
78			* If we have no data for this
79			* particular cell, then print a
80			* placeholder and continue--don't puke.
81			*/
82	✓✗	12	if (NULL != child)
83		12	eqn_box(p, child->first);
84		12	print_tagq(p, cell);
85		12	parent = parent->next;
86			}
87		6	print_tagq(p, row);
88			}
89			goto out;
90			}
91
92	✓✓✗✓ ✓✓✓✓ ✓	1191	switch (bp->pos) {
93			case EQNPOS_TO:
94		3	post = print_otag(p, TAG_MOVER, "");
95		3	break;
96			case EQNPOS_SUP:
97		27	post = print_otag(p, TAG_MSUP, "");
98		27	break;
99			case EQNPOS_FROM:
100			post = print_otag(p, TAG_MUNDER, "");
101			break;
102			case EQNPOS_SUB:
103		42	post = print_otag(p, TAG_MSUB, "");
104		42	break;
105			case EQNPOS_OVER:
106		24	post = print_otag(p, TAG_MFRAC, "");
107		24	break;
108			case EQNPOS_FROMTO:
109		15	post = print_otag(p, TAG_MUNDEROVER, "");
110		15	break;
111			case EQNPOS_SUBSUP:
112		21	post = print_otag(p, TAG_MSUBSUP, "");
113		21	break;
114			case EQNPOS_SQRT:
115		21	post = print_otag(p, TAG_MSQRT, "");
116		21	break;
117			default:
118			break;
119			}
120
121	✓✓✓✓	2019	if (bp->top \|\| bp->bottom) {
122	✗✓	66	assert(NULL == post);
123	✓✓✓✗	123	if (bp->top && NULL == bp->bottom)
124		57	post = print_otag(p, TAG_MOVER, "");
125	✗✓✗✗	9	else if (bp->top && bp->bottom)
126			post = print_otag(p, TAG_MUNDEROVER, "");
127	✓✗	9	else if (bp->bottom)
128		9	post = print_otag(p, TAG_MUNDER, "");
129			}
130
131	✓✓	1038	if (EQN_PILE == bp->type) {
132	✗✓	6	assert(NULL == post);
133	✓✗✓✗	12	if (bp->first != NULL &&
134	✓✗	6	bp->first->type == EQN_LIST &&
135		6	bp->first->expectargs > 1)
136		6	post = print_otag(p, TAG_MTABLE, "");
137	✓✓✓✓ ✓✓	1278	} else if (bp->type == EQN_LIST && bp->expectargs > 1 &&
138	✓✗	108	bp->parent && bp->parent->type == EQN_PILE) {
139	✗✓	12	assert(NULL == post);
140		12	post = print_otag(p, TAG_MTR, "");
141		12	print_otag(p, TAG_MTD, "");
142		12	}
143
144	✓✓	1038	if (bp->text != NULL) {
145	✗✓	639	assert(post == NULL);
146			tag = TAG_MI;
147		639	cp = bp->text;
148	✓✓✗✗	639	if (isdigit((unsigned char)cp[0]) \|\|
149	✗✓	561	(cp[0] == '.' && isdigit((unsigned char)cp[1]))) {
150			tag = TAG_MN;
151	✓✓	180	while (*++cp != '\0') {
152	✓✗✗✓	24	if (*cp != '.' &&
153		12	isdigit((unsigned char)*cp) == 0) {
154			tag = TAG_MI;
155			break;
156			}
157			}
158	✓✓✓✓	1119	} else if (cp != '\0' && isalpha((unsigned char)cp) == 0) {
159			tag = TAG_MO;
160	✓✓	456	while (*cp != '\0') {
161	✓✓✓✗	144	if (cp[0] == '\\' && cp[1] != '\0') {
162		30	cp++;
163		30	mandoc_escape(&cp, NULL, NULL);
164	✗✓	114	} else if (isalnum((unsigned char)*cp)) {
165			tag = TAG_MI;
166			break;
167			} else
168		84	cp++;
169			}
170			}
171		639	font = bp->font;
172	✓✓✓✓	1083	if (bp->text[0] != '\0' &&
173	✓✓	1272	(((tag == TAG_MN \|\| tag == TAG_MO) &&
174		636	font == EQNFONT_ROMAN) \|\|
175	✓✓	900	(tag == TAG_MI && font == (bp->text[1] == '\0' ?
176			EQNFONT_ITALIC : EQNFONT_ROMAN))))
177		483	font = EQNFONT_NONE;
178	✓✓✗✓ ✓✗	639	switch (font) {
179			case EQNFONT_NONE:
180		498	post = print_otag(p, tag, "");
181		498	break;
182			case EQNFONT_ROMAN:
183		9	post = print_otag(p, tag, "?", "fontstyle", "normal");
184		9	break;
185			case EQNFONT_BOLD:
186			case EQNFONT_FAT:
187		27	post = print_otag(p, tag, "?", "fontweight", "bold");
188		27	break;
189			case EQNFONT_ITALIC:
190		105	post = print_otag(p, tag, "?", "fontstyle", "italic");
191		105	break;
192			default:
193			abort();
194			}
195		639	print_text(p, bp->text);
196	✓✓	1038	} else if (NULL == post) {
197	✓✓✗✓	309	if (NULL != bp->left \|\| NULL != bp->right)
198		15	post = print_otag(p, TAG_MFENCED, "??",
199	✓✗	45	"open", bp->left == NULL ? "" : bp->left,
200	✓✗	45	"close", bp->right == NULL ? "" : bp->right);
201	✓✓	324	if (NULL == post)
202		309	post = print_otag(p, TAG_MROW, "");
203			else
204			print_otag(p, TAG_MROW, "");
205			}
206
207		1038	eqn_box(p, bp->first);
208
209			out:
210	✓✓	1047	if (NULL != bp->bottom) {
211		9	t = print_otag(p, TAG_MO, "");
212		9	print_text(p, bp->bottom);
213		9	print_tagq(p, t);
214		9	}
215	✓✓	1047	if (NULL != bp->top) {
216		57	t = print_otag(p, TAG_MO, "");
217		57	print_text(p, bp->top);
218		57	print_tagq(p, t);
219		57	}
220
221	✓✓	1047	if (NULL != post)
222		1041	print_tagq(p, post);
223
224		1047	eqn_box(p, bp->next);
225		3192	}
226
227			void
228			print_eqn(struct html p, const struct eqn_box bp)
229			{
230			struct tag *t;
231
232	✗✓	96	if (bp->first == NULL)
233			return;
234
235		48	t = print_otag(p, TAG_MATH, "c", "eqn");
236
237		48	p->flags \|= HTML_NONOSPACE;
238		48	eqn_box(p, bp);
239		48	p->flags &= ~HTML_NONOSPACE;
240
241		48	print_tagq(p, t);
242		96	}