Annotation of mandoc/eqn_html.c, Revision 1.13
1.13 ! schwarze 1: /* $Id: eqn_html.c,v 1.12 2017/06/20 17:24:35 schwarze Exp $ */
1.1 kristaps 2: /*
1.9 schwarze 3: * Copyright (c) 2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
1.11 schwarze 4: * Copyright (c) 2017 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 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 "config.h"
1.4 schwarze 19:
20: #include <sys/types.h>
1.1 kristaps 21:
22: #include <assert.h>
1.13 ! schwarze 23: #include <ctype.h>
1.1 kristaps 24: #include <stdio.h>
25: #include <stdlib.h>
26: #include <string.h>
27:
28: #include "mandoc.h"
29: #include "out.h"
30: #include "html.h"
31:
1.8 kristaps 32: static void
33: eqn_box(struct html *p, const struct eqn_box *bp)
1.1 kristaps 34: {
1.8 kristaps 35: struct tag *post, *row, *cell, *t;
36: const struct eqn_box *child, *parent;
1.13 ! schwarze 37: const unsigned char *cp;
1.8 kristaps 38: size_t i, j, rows;
1.13 ! schwarze 39: enum htmltag tag;
! 40: enum eqn_fontt font;
1.5 kristaps 41:
42: if (NULL == bp)
1.8 kristaps 43: return;
1.5 kristaps 44:
1.8 kristaps 45: post = NULL;
1.5 kristaps 46:
47: /*
1.8 kristaps 48: * Special handling for a matrix, which is presented to us in
49: * column order, but must be printed in row-order.
1.5 kristaps 50: */
1.8 kristaps 51: if (EQN_MATRIX == bp->type) {
52: if (NULL == bp->first)
53: goto out;
1.10 schwarze 54: if (EQN_LIST != bp->first->type) {
55: eqn_box(p, bp->first);
56: goto out;
57: }
1.8 kristaps 58: if (NULL == (parent = bp->first->first))
59: goto out;
60: /* Estimate the number of rows, first. */
61: if (NULL == (child = parent->first))
62: goto out;
1.9 schwarze 63: for (rows = 0; NULL != child; rows++)
1.8 kristaps 64: child = child->next;
65: /* Print row-by-row. */
1.11 schwarze 66: post = print_otag(p, TAG_MTABLE, "");
1.8 kristaps 67: for (i = 0; i < rows; i++) {
68: parent = bp->first->first;
1.11 schwarze 69: row = print_otag(p, TAG_MTR, "");
1.8 kristaps 70: while (NULL != parent) {
71: child = parent->first;
72: for (j = 0; j < i; j++) {
73: if (NULL == child)
74: break;
75: child = child->next;
76: }
1.11 schwarze 77: cell = print_otag(p, TAG_MTD, "");
1.9 schwarze 78: /*
1.8 kristaps 79: * If we have no data for this
80: * particular cell, then print a
81: * placeholder and continue--don't puke.
82: */
1.9 schwarze 83: if (NULL != child)
1.8 kristaps 84: eqn_box(p, child->first);
85: print_tagq(p, cell);
86: parent = parent->next;
87: }
88: print_tagq(p, row);
89: }
90: goto out;
1.6 kristaps 91: }
1.5 kristaps 92:
93: switch (bp->pos) {
1.12 schwarze 94: case EQNPOS_TO:
1.11 schwarze 95: post = print_otag(p, TAG_MOVER, "");
1.7 kristaps 96: break;
1.12 schwarze 97: case EQNPOS_SUP:
1.11 schwarze 98: post = print_otag(p, TAG_MSUP, "");
1.5 kristaps 99: break;
1.12 schwarze 100: case EQNPOS_FROM:
1.11 schwarze 101: post = print_otag(p, TAG_MUNDER, "");
1.7 kristaps 102: break;
1.12 schwarze 103: case EQNPOS_SUB:
1.11 schwarze 104: post = print_otag(p, TAG_MSUB, "");
1.5 kristaps 105: break;
1.12 schwarze 106: case EQNPOS_OVER:
1.11 schwarze 107: post = print_otag(p, TAG_MFRAC, "");
1.5 kristaps 108: break;
1.12 schwarze 109: case EQNPOS_FROMTO:
1.11 schwarze 110: post = print_otag(p, TAG_MUNDEROVER, "");
1.7 kristaps 111: break;
1.12 schwarze 112: case EQNPOS_SUBSUP:
1.11 schwarze 113: post = print_otag(p, TAG_MSUBSUP, "");
1.8 kristaps 114: break;
1.12 schwarze 115: case EQNPOS_SQRT:
1.11 schwarze 116: post = print_otag(p, TAG_MSQRT, "");
1.5 kristaps 117: break;
118: default:
119: break;
120: }
121:
1.8 kristaps 122: if (bp->top || bp->bottom) {
123: assert(NULL == post);
124: if (bp->top && NULL == bp->bottom)
1.11 schwarze 125: post = print_otag(p, TAG_MOVER, "");
1.8 kristaps 126: else if (bp->top && bp->bottom)
1.11 schwarze 127: post = print_otag(p, TAG_MUNDEROVER, "");
1.8 kristaps 128: else if (bp->bottom)
1.11 schwarze 129: post = print_otag(p, TAG_MUNDER, "");
1.8 kristaps 130: }
131:
132: if (EQN_PILE == bp->type) {
133: assert(NULL == post);
1.10 schwarze 134: if (bp->first != NULL && bp->first->type == EQN_LIST)
1.11 schwarze 135: post = print_otag(p, TAG_MTABLE, "");
1.10 schwarze 136: } else if (bp->type == EQN_LIST &&
137: bp->parent && bp->parent->type == EQN_PILE) {
1.8 kristaps 138: assert(NULL == post);
1.11 schwarze 139: post = print_otag(p, TAG_MTR, "");
140: print_otag(p, TAG_MTD, "");
1.8 kristaps 141: }
1.5 kristaps 142:
1.13 ! schwarze 143: if (bp->text != NULL) {
! 144: assert(post == NULL);
! 145: tag = TAG_MI;
! 146: cp = (unsigned char *)bp->text;
! 147: if (isdigit(cp[0]) || (cp[0] == '.' && isdigit(cp[1]))) {
! 148: tag = TAG_MN;
! 149: while (*++cp != '\0') {
! 150: if (*cp != '.' && !isdigit(*cp)) {
! 151: tag = TAG_MI;
! 152: break;
! 153: }
! 154: }
! 155: } else if (*cp != '\0' && isalpha(*cp) == 0) {
! 156: tag = TAG_MO;
! 157: while (*++cp != '\0') {
! 158: if (isalnum(*cp)) {
! 159: tag = TAG_MI;
! 160: break;
! 161: }
! 162: }
! 163: }
! 164: font = bp->font;
! 165: if (bp->text[0] != '\0' &&
! 166: (((tag == TAG_MN || tag == TAG_MO) &&
! 167: font == EQNFONT_ROMAN) ||
! 168: (tag == TAG_MI && font == (bp->text[1] == '\0' ?
! 169: EQNFONT_ITALIC : EQNFONT_ROMAN))))
! 170: font = EQNFONT_NONE;
! 171: switch (font) {
! 172: case EQNFONT_NONE:
! 173: post = print_otag(p, tag, "");
! 174: break;
! 175: case EQNFONT_ROMAN:
! 176: post = print_otag(p, tag, "?", "fontstyle", "normal");
! 177: break;
! 178: case EQNFONT_BOLD:
! 179: case EQNFONT_FAT:
! 180: post = print_otag(p, tag, "?", "fontweight", "bold");
! 181: break;
! 182: case EQNFONT_ITALIC:
! 183: post = print_otag(p, tag, "?", "fontstyle", "italic");
! 184: break;
! 185: default:
! 186: abort();
! 187: }
1.8 kristaps 188: print_text(p, bp->text);
1.9 schwarze 189: } else if (NULL == post) {
1.11 schwarze 190: if (NULL != bp->left || NULL != bp->right)
191: post = print_otag(p, TAG_MFENCED, "??",
192: "open", bp->left == NULL ? "" : bp->left,
193: "close", bp->right == NULL ? "" : bp->right);
1.8 kristaps 194: if (NULL == post)
1.11 schwarze 195: post = print_otag(p, TAG_MROW, "");
1.8 kristaps 196: else
1.11 schwarze 197: print_otag(p, TAG_MROW, "");
1.5 kristaps 198: }
199:
1.8 kristaps 200: eqn_box(p, bp->first);
201:
202: out:
203: if (NULL != bp->bottom) {
1.11 schwarze 204: t = print_otag(p, TAG_MO, "");
1.8 kristaps 205: print_text(p, bp->bottom);
206: print_tagq(p, t);
1.9 schwarze 207: }
1.8 kristaps 208: if (NULL != bp->top) {
1.11 schwarze 209: t = print_otag(p, TAG_MO, "");
1.8 kristaps 210: print_text(p, bp->top);
211: print_tagq(p, t);
212: }
213:
214: if (NULL != post)
1.5 kristaps 215: print_tagq(p, post);
216:
1.8 kristaps 217: eqn_box(p, bp->next);
218: }
219:
220: void
221: print_eqn(struct html *p, const struct eqn *ep)
222: {
223: struct tag *t;
224:
1.11 schwarze 225: t = print_otag(p, TAG_MATH, "c", "eqn");
1.8 kristaps 226:
227: p->flags |= HTML_NONOSPACE;
228: eqn_box(p, ep->root);
229: p->flags &= ~HTML_NONOSPACE;
1.5 kristaps 230:
1.8 kristaps 231: print_tagq(p, t);
1.1 kristaps 232: }
CVSweb
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to eqn_html.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [cvsweb.bsd.lv] / mandoc