Annotation of src/usr.bin/mandoc/tbl_html.c, Revision 1.25
1.25 ! schwarze 1: /* $OpenBSD: tbl_html.c,v 1.24 2018/11/26 21:05:54 schwarze Exp $ */
1.1 schwarze 2: /*
1.5 schwarze 3: * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.20 schwarze 4: * Copyright (c) 2014, 2015, 2017, 2018 Ingo Schwarze <schwarze@openbsd.org>
1.1 schwarze 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: */
1.8 schwarze 18: #include <sys/types.h>
19:
1.1 schwarze 20: #include <assert.h>
21: #include <stdio.h>
22: #include <stdlib.h>
23: #include <string.h>
24:
1.25 ! schwarze 25: #include "tbl.h"
1.1 schwarze 26: #include "out.h"
27: #include "html.h"
28:
1.4 schwarze 29: static void html_tblopen(struct html *, const struct tbl_span *);
1.2 schwarze 30: static size_t html_tbl_len(size_t, void *);
31: static size_t html_tbl_strlen(const char *, void *);
1.16 schwarze 32: static size_t html_tbl_sulen(const struct roffsu *, void *);
1.2 schwarze 33:
1.7 schwarze 34:
1.2 schwarze 35: static size_t
36: html_tbl_len(size_t sz, void *arg)
37: {
1.12 schwarze 38: return sz;
1.2 schwarze 39: }
40:
41: static size_t
42: html_tbl_strlen(const char *p, void *arg)
43: {
1.16 schwarze 44: return strlen(p);
45: }
1.2 schwarze 46:
1.16 schwarze 47: static size_t
48: html_tbl_sulen(const struct roffsu *su, void *arg)
49: {
1.18 schwarze 50: if (su->scale < 0.0)
51: return 0;
52:
1.16 schwarze 53: switch (su->unit) {
54: case SCALE_FS: /* 2^16 basic units */
55: return su->scale * 65536.0 / 24.0;
56: case SCALE_IN: /* 10 characters per inch */
57: return su->scale * 10.0;
58: case SCALE_CM: /* 2.54 cm per inch */
59: return su->scale * 10.0 / 2.54;
60: case SCALE_PC: /* 6 pica per inch */
61: case SCALE_VS:
62: return su->scale * 10.0 / 6.0;
63: case SCALE_EN:
64: case SCALE_EM:
65: return su->scale;
66: case SCALE_PT: /* 12 points per pica */
67: return su->scale * 10.0 / 6.0 / 12.0;
68: case SCALE_BU: /* 24 basic units per character */
69: return su->scale / 24.0;
70: case SCALE_MM: /* 1/1000 inch */
71: return su->scale / 100.0;
72: default:
73: abort();
74: }
1.2 schwarze 75: }
76:
1.4 schwarze 77: static void
78: html_tblopen(struct html *h, const struct tbl_span *sp)
79: {
1.11 schwarze 80: if (h->tbl.cols == NULL) {
1.4 schwarze 81: h->tbl.len = html_tbl_len;
82: h->tbl.slen = html_tbl_strlen;
1.16 schwarze 83: h->tbl.sulen = html_tbl_sulen;
1.17 schwarze 84: tblcalc(&h->tbl, sp, 0, 0);
1.4 schwarze 85: }
86: assert(NULL == h->tblt);
1.24 schwarze 87: h->tblt = print_otag(h, TAG_TABLE, "c?ss", "tbl",
88: "border",
89: sp->opts->opts & TBL_OPT_ALLBOX ? "1" : NULL,
90: "border-style",
91: sp->opts->opts & TBL_OPT_DBOX ? "double" :
92: sp->opts->opts & TBL_OPT_BOX ? "solid" : NULL,
93: "border-top-style",
94: sp->pos == TBL_SPAN_DHORIZ ? "double" :
95: sp->pos == TBL_SPAN_HORIZ ? "solid" : NULL);
1.4 schwarze 96: }
97:
98: void
99: print_tblclose(struct html *h)
100: {
101:
102: assert(h->tblt);
103: print_tagq(h, h->tblt);
104: h->tblt = NULL;
105: }
106:
1.1 schwarze 107: void
108: print_tbl(struct html *h, const struct tbl_span *sp)
109: {
1.21 schwarze 110: const struct tbl_dat *dp;
1.24 schwarze 111: const struct tbl_cell *cp;
112: const struct tbl_span *psp;
1.21 schwarze 113: struct tag *tt;
114: const char *hspans, *vspans, *halign, *valign;
1.24 schwarze 115: const char *bborder, *lborder, *rborder;
1.21 schwarze 116: char hbuf[4], vbuf[4];
1.24 schwarze 117: int i;
1.2 schwarze 118:
1.9 schwarze 119: if (h->tblt == NULL)
1.4 schwarze 120: html_tblopen(h, sp);
121:
1.24 schwarze 122: /*
123: * Horizontal lines spanning the whole table
124: * are handled by previous or following table rows.
125: */
126:
127: if (sp->pos != TBL_SPAN_DATA)
128: return;
129:
130: /* Inhibit printing of spaces: we do padding ourselves. */
1.4 schwarze 131:
1.2 schwarze 132: h->flags |= HTML_NONOSPACE;
133: h->flags |= HTML_NOSPACE;
134:
1.24 schwarze 135: /* Draw a vertical line left of this row? */
1.1 schwarze 136:
1.24 schwarze 137: switch (sp->layout->vert) {
138: case 2:
139: lborder = "double";
140: break;
141: case 1:
142: lborder = "solid";
1.2 schwarze 143: break;
1.1 schwarze 144: default:
1.24 schwarze 145: lborder = NULL;
146: break;
147: }
1.22 schwarze 148:
1.24 schwarze 149: /* Draw a horizontal line below this row? */
150:
151: bborder = NULL;
152: if ((psp = sp->next) != NULL) {
153: switch (psp->pos) {
154: case TBL_SPAN_DHORIZ:
155: bborder = "double";
156: break;
157: case TBL_SPAN_HORIZ:
158: bborder = "solid";
159: break;
160: default:
161: break;
162: }
163: }
164:
165: tt = print_otag(h, TAG_TR, "ss",
166: "border-left-style", lborder,
167: "border-bottom-style", bborder);
168:
169: for (dp = sp->first; dp != NULL; dp = dp->next) {
170: print_stagq(h, tt);
171:
172: /*
173: * Do not generate <td> elements for continuations
174: * of spanned cells. Larger <td> elements covering
175: * this space were already generated earlier.
176: */
177:
178: cp = dp->layout;
179: if (cp->pos == TBL_CELL_SPAN || cp->pos == TBL_CELL_DOWN ||
180: (dp->string != NULL && strcmp(dp->string, "\\^") == 0))
181: continue;
182:
183: /* Determine the attribute values. */
184:
185: if (dp->hspans > 0) {
186: (void)snprintf(hbuf, sizeof(hbuf),
187: "%d", dp->hspans + 1);
188: hspans = hbuf;
189: } else
190: hspans = NULL;
191: if (dp->vspans > 0) {
192: (void)snprintf(vbuf, sizeof(vbuf),
193: "%d", dp->vspans + 1);
194: vspans = vbuf;
195: } else
196: vspans = NULL;
197:
198: switch (cp->pos) {
199: case TBL_CELL_CENTRE:
200: halign = "center";
201: break;
202: case TBL_CELL_RIGHT:
203: case TBL_CELL_NUMBER:
204: halign = "right";
205: break;
206: default:
207: halign = NULL;
208: break;
1.2 schwarze 209: }
1.24 schwarze 210: if (cp->flags & TBL_CELL_TALIGN)
211: valign = "top";
212: else if (cp->flags & TBL_CELL_BALIGN)
213: valign = "bottom";
214: else
215: valign = NULL;
216:
217: for (i = dp->hspans; i > 0; i--)
218: cp = cp->next;
219: switch (cp->vert) {
220: case 2:
221: rborder = "double";
222: break;
223: case 1:
224: rborder = "solid";
225: break;
226: default:
227: rborder = NULL;
228: break;
229: }
230:
231: /* Print the element and the attributes. */
232:
233: print_otag(h, TAG_TD, "??sss",
234: "colspan", hspans, "rowspan", vspans,
235: "vertical-align", valign,
236: "text-align", halign,
237: "border-right-style", rborder);
238: if (dp->string != NULL)
239: print_text(h, dp->string);
1.1 schwarze 240: }
241:
1.4 schwarze 242: print_tagq(h, tt);
243:
1.2 schwarze 244: h->flags &= ~HTML_NONOSPACE;
1.1 schwarze 245:
1.11 schwarze 246: if (sp->next == NULL) {
1.2 schwarze 247: assert(h->tbl.cols);
248: free(h->tbl.cols);
249: h->tbl.cols = NULL;
1.4 schwarze 250: print_tblclose(h);
1.1 schwarze 251: }
252: }