1 /* $Id: tbl_html.c,v 1.42 2025/07/16 14:33:08 schwarze Exp $ */
2 /*
3 * Copyright (c) 2014, 2015, 2017, 2018, 2021, 2022
4 * Ingo Schwarze <schwarze@openbsd.org>
5 * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
6 *
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 */
19 #include "config.h"
20
21 #include <sys/types.h>
22
23 #include <assert.h>
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <string.h>
27
28 #if DEBUG_MEMORY
29 #include "mandoc_dbg.h"
30 #endif
31 #include "mandoc.h"
32 #include "roff.h"
33 #include "tbl.h"
34 #include "out.h"
35 #include "html.h"
36
37 static void html_tblopen(struct html *, const struct tbl_span *);
38 static size_t html_tbl_len(size_t, void *);
39 static size_t html_tbl_strlen(const char *, void *);
40
41
42 static size_t
html_tbl_len(size_t sz,void * arg)43 html_tbl_len(size_t sz, void *arg)
44 {
45 return sz;
46 }
47
48 static size_t
html_tbl_strlen(const char * p,void * arg)49 html_tbl_strlen(const char *p, void *arg)
50 {
51 return strlen(p);
52 }
53
54 static void
html_tblopen(struct html * h,const struct tbl_span * sp)55 html_tblopen(struct html *h, const struct tbl_span *sp)
56 {
57 html_close_paragraph(h);
58 if (h->tbl.cols == NULL) {
59 h->tbl.len = html_tbl_len;
60 h->tbl.slen = html_tbl_strlen;
61 tblcalc(&h->tbl, sp, 0, 0);
62 }
63 assert(NULL == h->tblt);
64 h->tblt = print_otag(h, TAG_TABLE, "c?ss", "tbl",
65 "border",
66 sp->opts->opts & TBL_OPT_ALLBOX ? "1" : NULL,
67 "border-style",
68 sp->opts->opts & TBL_OPT_DBOX ? "double" :
69 sp->opts->opts & TBL_OPT_BOX ? "solid" : NULL,
70 "border-top-style",
71 sp->pos == TBL_SPAN_DHORIZ ? "double" :
72 sp->pos == TBL_SPAN_HORIZ ? "solid" : NULL);
73 }
74
75 void
print_tblclose(struct html * h)76 print_tblclose(struct html *h)
77 {
78
79 assert(h->tblt);
80 print_tagq(h, h->tblt);
81 h->tblt = NULL;
82 }
83
84 void
print_tbl(struct html * h,const struct tbl_span * sp)85 print_tbl(struct html *h, const struct tbl_span *sp)
86 {
87 const struct tbl_dat *dp;
88 const struct tbl_cell *cp;
89 const struct tbl_span *psp;
90 const struct roffcol *col;
91 struct tag *tt;
92 const char *hspans, *vspans, *halign, *valign;
93 const char *bborder, *lborder, *rborder;
94 const char *ccp;
95 char hbuf[4], vbuf[4];
96 size_t sz;
97 enum mandoc_esc save_font;
98 int i;
99
100 if (h->tblt == NULL)
101 html_tblopen(h, sp);
102
103 /*
104 * Horizontal lines spanning the whole table
105 * are handled by previous or following table rows.
106 */
107
108 if (sp->pos != TBL_SPAN_DATA)
109 goto out;
110
111 /* Inhibit printing of spaces: we do padding ourselves. */
112
113 h->flags |= HTML_NONOSPACE;
114 h->flags |= HTML_NOSPACE;
115
116 /* Draw a vertical line left of this row? */
117
118 switch (sp->layout->vert) {
119 case 2:
120 lborder = "double";
121 break;
122 case 1:
123 lborder = "solid";
124 break;
125 default:
126 lborder = NULL;
127 break;
128 }
129
130 /* Draw a horizontal line below this row? */
131
132 bborder = NULL;
133 if ((psp = sp->next) != NULL) {
134 switch (psp->pos) {
135 case TBL_SPAN_DHORIZ:
136 bborder = "double";
137 break;
138 case TBL_SPAN_HORIZ:
139 bborder = "solid";
140 break;
141 default:
142 break;
143 }
144 }
145
146 tt = print_otag(h, TAG_TR, "ss",
147 "border-left-style", lborder,
148 "border-bottom-style", bborder);
149
150 for (dp = sp->first; dp != NULL; dp = dp->next) {
151 print_stagq(h, tt);
152
153 /*
154 * Do not generate <td> elements for continuations
155 * of spanned cells. Larger <td> elements covering
156 * this space were already generated earlier.
157 */
158
159 cp = dp->layout;
160 if (cp->pos == TBL_CELL_SPAN || cp->pos == TBL_CELL_DOWN ||
161 (dp->string != NULL && strcmp(dp->string, "\\^") == 0))
162 continue;
163
164 /* Determine the attribute values. */
165
166 if (dp->hspans > 0) {
167 (void)snprintf(hbuf, sizeof(hbuf),
168 "%d", dp->hspans + 1);
169 hspans = hbuf;
170 } else
171 hspans = NULL;
172 if (dp->vspans > 0) {
173 (void)snprintf(vbuf, sizeof(vbuf),
174 "%d", dp->vspans + 1);
175 vspans = vbuf;
176 } else
177 vspans = NULL;
178
179 switch (cp->pos) {
180 case TBL_CELL_CENTRE:
181 halign = "center";
182 break;
183 case TBL_CELL_RIGHT:
184 case TBL_CELL_NUMBER:
185 halign = "right";
186 break;
187 default:
188 halign = NULL;
189 break;
190 }
191 if (cp->flags & TBL_CELL_TALIGN)
192 valign = "top";
193 else if (cp->flags & TBL_CELL_BALIGN)
194 valign = "bottom";
195 else
196 valign = NULL;
197
198 for (i = dp->hspans; i > 0; i--)
199 cp = cp->next;
200 switch (cp->vert) {
201 case 2:
202 rborder = "double";
203 break;
204 case 1:
205 rborder = "solid";
206 break;
207 default:
208 rborder = NULL;
209 break;
210 }
211
212 /* Print the element and the attributes. */
213
214 print_otag(h, TAG_TD, "??sss",
215 "colspan", hspans, "rowspan", vspans,
216 "vertical-align", valign,
217 "text-align", halign,
218 "border-right-style", rborder);
219 if (dp->layout->pos == TBL_CELL_HORIZ ||
220 dp->layout->pos == TBL_CELL_DHORIZ ||
221 dp->pos == TBL_DATA_HORIZ ||
222 dp->pos == TBL_DATA_NHORIZ ||
223 dp->pos == TBL_DATA_DHORIZ ||
224 dp->pos == TBL_DATA_NDHORIZ)
225 print_otag(h, TAG_HR, "");
226 else if (dp->string != NULL) {
227 save_font = h->metac;
228 html_setfont(h, dp->layout->font);
229 if (dp->layout->pos == TBL_CELL_LONG)
230 print_text(h, "\\[u2003]"); /* em space */
231 print_text(h, dp->string);
232 if (dp->layout->pos == TBL_CELL_NUMBER) {
233 col = h->tbl.cols + dp->layout->col;
234 if (col->decimal < col->nwidth) {
235 if ((ccp = strrchr(dp->string,
236 sp->opts->decimal)) == NULL) {
237 /* Punctuation space. */
238 print_text(h, "\\[u2008]");
239 ccp = strchr(dp->string, '\0');
240 } else
241 ccp++;
242 sz = col->nwidth - col->decimal;
243 while (--sz > 0) {
244 if (*ccp == '\0')
245 /* Figure space. */
246 print_text(h,
247 "\\[u2007]");
248 else
249 ccp++;
250 }
251 }
252 }
253 html_setfont(h, save_font);
254 }
255 }
256
257 print_tagq(h, tt);
258
259 h->flags &= ~HTML_NONOSPACE;
260
261 out:
262 if (sp->next == NULL) {
263 assert(h->tbl.cols);
264 free(h->tbl.cols);
265 h->tbl.cols = NULL;
266 print_tblclose(h);
267 }
268 }
269