Annotation of mandoc/tbl_html.c, Revision 1.28
1.28 ! schwarze 1: /* $Id: tbl_html.c,v 1.27 2018/11/25 21:17:34 schwarze Exp $ */
1.1 kristaps 2: /*
1.9 schwarze 3: * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.25 schwarze 4: * Copyright (c) 2014, 2015, 2017, 2018 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"
1.12 schwarze 19:
20: #include <sys/types.h>
1.1 kristaps 21:
22: #include <assert.h>
23: #include <stdio.h>
24: #include <stdlib.h>
25: #include <string.h>
26:
27: #include "mandoc.h"
28: #include "out.h"
29: #include "html.h"
30:
1.7 kristaps 31: static void html_tblopen(struct html *, const struct tbl_span *);
1.4 kristaps 32: static size_t html_tbl_len(size_t, void *);
33: static size_t html_tbl_strlen(const char *, void *);
1.21 schwarze 34: static size_t html_tbl_sulen(const struct roffsu *, void *);
1.4 kristaps 35:
1.11 schwarze 36:
1.4 kristaps 37: static size_t
38: html_tbl_len(size_t sz, void *arg)
39: {
1.17 schwarze 40: return sz;
1.4 kristaps 41: }
42:
43: static size_t
44: html_tbl_strlen(const char *p, void *arg)
45: {
1.21 schwarze 46: return strlen(p);
47: }
1.4 kristaps 48:
1.21 schwarze 49: static size_t
50: html_tbl_sulen(const struct roffsu *su, void *arg)
51: {
1.23 schwarze 52: if (su->scale < 0.0)
53: return 0;
54:
1.21 schwarze 55: switch (su->unit) {
56: case SCALE_FS: /* 2^16 basic units */
57: return su->scale * 65536.0 / 24.0;
58: case SCALE_IN: /* 10 characters per inch */
59: return su->scale * 10.0;
60: case SCALE_CM: /* 2.54 cm per inch */
61: return su->scale * 10.0 / 2.54;
62: case SCALE_PC: /* 6 pica per inch */
63: case SCALE_VS:
64: return su->scale * 10.0 / 6.0;
65: case SCALE_EN:
66: case SCALE_EM:
67: return su->scale;
68: case SCALE_PT: /* 12 points per pica */
69: return su->scale * 10.0 / 6.0 / 12.0;
70: case SCALE_BU: /* 24 basic units per character */
71: return su->scale / 24.0;
72: case SCALE_MM: /* 1/1000 inch */
73: return su->scale / 100.0;
74: default:
75: abort();
76: }
1.4 kristaps 77: }
78:
1.7 kristaps 79: static void
80: html_tblopen(struct html *h, const struct tbl_span *sp)
81: {
1.16 schwarze 82: if (h->tbl.cols == NULL) {
1.7 kristaps 83: h->tbl.len = html_tbl_len;
84: h->tbl.slen = html_tbl_strlen;
1.21 schwarze 85: h->tbl.sulen = html_tbl_sulen;
1.22 schwarze 86: tblcalc(&h->tbl, sp, 0, 0);
1.7 kristaps 87: }
88: assert(NULL == h->tblt);
1.19 schwarze 89: h->tblt = print_otag(h, TAG_TABLE, "c", "tbl");
1.7 kristaps 90: }
91:
92: void
93: print_tblclose(struct html *h)
94: {
95:
96: assert(h->tblt);
97: print_tagq(h, h->tblt);
98: h->tblt = NULL;
99: }
100:
1.1 kristaps 101: void
102: print_tbl(struct html *h, const struct tbl_span *sp)
103: {
1.26 schwarze 104: const struct tbl_dat *dp;
105: struct tag *tt;
106: const char *hspans, *vspans, *halign, *valign;
107: char hbuf[4], vbuf[4];
1.1 kristaps 108:
109: /* Inhibit printing of spaces: we do padding ourselves. */
110:
1.14 schwarze 111: if (h->tblt == NULL)
1.7 kristaps 112: html_tblopen(h, sp);
113:
114: assert(h->tblt);
115:
1.1 kristaps 116: h->flags |= HTML_NONOSPACE;
117: h->flags |= HTML_NOSPACE;
118:
1.19 schwarze 119: tt = print_otag(h, TAG_TR, "");
1.4 kristaps 120:
1.5 kristaps 121: switch (sp->pos) {
1.11 schwarze 122: case TBL_SPAN_HORIZ:
123: case TBL_SPAN_DHORIZ:
1.19 schwarze 124: print_otag(h, TAG_TD, "?", "colspan", "0");
1.5 kristaps 125: break;
126: default:
1.26 schwarze 127: for (dp = sp->first; dp != NULL; dp = dp->next) {
1.7 kristaps 128: print_stagq(h, tt);
1.27 schwarze 129:
130: /*
131: * Do not generate <td> elements for continuations
132: * of spanned cells. Larger <td> elements covering
133: * this space were already generated earlier.
134: */
135:
136: if (dp->layout->pos == TBL_CELL_SPAN ||
137: dp->layout->pos == TBL_CELL_DOWN ||
138: (dp->string != NULL &&
139: strcmp(dp->string, "\\^") == 0))
1.15 schwarze 140: continue;
1.26 schwarze 141:
142: /* Determine the attribute values. */
143:
144: if (dp->hspans > 0) {
145: (void)snprintf(hbuf, sizeof(hbuf),
146: "%d", dp->hspans + 1);
147: hspans = hbuf;
148: } else
149: hspans = NULL;
150: if (dp->vspans > 0) {
151: (void)snprintf(vbuf, sizeof(vbuf),
152: "%d", dp->vspans + 1);
153: vspans = vbuf;
154: } else
155: vspans = NULL;
156:
1.25 schwarze 157: switch (dp->layout->pos) {
158: case TBL_CELL_CENTRE:
159: halign = "center";
160: break;
161: case TBL_CELL_RIGHT:
162: case TBL_CELL_NUMBER:
163: halign = "right";
164: break;
165: default:
166: halign = NULL;
167: break;
168: }
169: if (dp->layout->flags & TBL_CELL_TALIGN)
170: valign = "top";
171: else if (dp->layout->flags & TBL_CELL_BALIGN)
172: valign = "bottom";
173: else
174: valign = NULL;
1.26 schwarze 175:
176: /* Print the element and the attributes. */
177:
1.28 ! schwarze 178: print_otag(h, TAG_TD, "??ss",
! 179: "colspan", hspans, "rowspan", vspans,
! 180: "vertical-align", valign,
! 181: "text-align", halign);
1.26 schwarze 182: if (dp->string != NULL)
183: print_text(h, dp->string);
1.1 kristaps 184: }
1.5 kristaps 185: break;
186: }
1.4 kristaps 187:
1.7 kristaps 188: print_tagq(h, tt);
189:
1.1 kristaps 190: h->flags &= ~HTML_NONOSPACE;
1.4 kristaps 191:
1.16 schwarze 192: if (sp->next == NULL) {
1.4 kristaps 193: assert(h->tbl.cols);
194: free(h->tbl.cols);
195: h->tbl.cols = NULL;
1.7 kristaps 196: print_tblclose(h);
1.4 kristaps 197: }
1.1 kristaps 198: }
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