Annotation of src/usr.bin/mandoc/tbl_html.c, Revision 1.32
1.32 ! schwarze 1: /* $OpenBSD: tbl_html.c,v 1.31 2021/08/10 12:36:42 schwarze Exp $ */
1.1 schwarze 2: /*
1.5 schwarze 3: * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.29 schwarze 4: * Copyright (c) 2014,2015,2017,2018,2021 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:
1.26 schwarze 25: #include "mandoc.h"
1.28 schwarze 26: #include "roff.h"
1.25 schwarze 27: #include "tbl.h"
1.1 schwarze 28: #include "out.h"
29: #include "html.h"
30:
1.4 schwarze 31: static void html_tblopen(struct html *, const struct tbl_span *);
1.2 schwarze 32: static size_t html_tbl_len(size_t, void *);
33: static size_t html_tbl_strlen(const char *, void *);
1.16 schwarze 34: static size_t html_tbl_sulen(const struct roffsu *, void *);
1.2 schwarze 35:
1.7 schwarze 36:
1.2 schwarze 37: static size_t
38: html_tbl_len(size_t sz, void *arg)
39: {
1.12 schwarze 40: return sz;
1.2 schwarze 41: }
42:
43: static size_t
44: html_tbl_strlen(const char *p, void *arg)
45: {
1.16 schwarze 46: return strlen(p);
47: }
1.2 schwarze 48:
1.16 schwarze 49: static size_t
50: html_tbl_sulen(const struct roffsu *su, void *arg)
51: {
1.18 schwarze 52: if (su->scale < 0.0)
53: return 0;
54:
1.16 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: }
1.2 schwarze 77: }
78:
1.4 schwarze 79: static void
80: html_tblopen(struct html *h, const struct tbl_span *sp)
81: {
1.27 schwarze 82: html_close_paragraph(h);
1.11 schwarze 83: if (h->tbl.cols == NULL) {
1.4 schwarze 84: h->tbl.len = html_tbl_len;
85: h->tbl.slen = html_tbl_strlen;
1.16 schwarze 86: h->tbl.sulen = html_tbl_sulen;
1.17 schwarze 87: tblcalc(&h->tbl, sp, 0, 0);
1.4 schwarze 88: }
89: assert(NULL == h->tblt);
1.24 schwarze 90: h->tblt = print_otag(h, TAG_TABLE, "c?ss", "tbl",
91: "border",
92: sp->opts->opts & TBL_OPT_ALLBOX ? "1" : NULL,
93: "border-style",
94: sp->opts->opts & TBL_OPT_DBOX ? "double" :
95: sp->opts->opts & TBL_OPT_BOX ? "solid" : NULL,
96: "border-top-style",
97: sp->pos == TBL_SPAN_DHORIZ ? "double" :
98: sp->pos == TBL_SPAN_HORIZ ? "solid" : NULL);
1.4 schwarze 99: }
100:
101: void
102: print_tblclose(struct html *h)
103: {
104:
105: assert(h->tblt);
106: print_tagq(h, h->tblt);
107: h->tblt = NULL;
108: }
109:
1.1 schwarze 110: void
111: print_tbl(struct html *h, const struct tbl_span *sp)
112: {
1.21 schwarze 113: const struct tbl_dat *dp;
1.24 schwarze 114: const struct tbl_cell *cp;
115: const struct tbl_span *psp;
1.21 schwarze 116: struct tag *tt;
117: const char *hspans, *vspans, *halign, *valign;
1.24 schwarze 118: const char *bborder, *lborder, *rborder;
1.21 schwarze 119: char hbuf[4], vbuf[4];
1.29 schwarze 120: enum mandoc_esc save_font;
1.24 schwarze 121: int i;
1.2 schwarze 122:
1.9 schwarze 123: if (h->tblt == NULL)
1.4 schwarze 124: html_tblopen(h, sp);
125:
1.24 schwarze 126: /*
127: * Horizontal lines spanning the whole table
128: * are handled by previous or following table rows.
129: */
130:
131: if (sp->pos != TBL_SPAN_DATA)
132: return;
133:
134: /* Inhibit printing of spaces: we do padding ourselves. */
1.4 schwarze 135:
1.2 schwarze 136: h->flags |= HTML_NONOSPACE;
137: h->flags |= HTML_NOSPACE;
138:
1.24 schwarze 139: /* Draw a vertical line left of this row? */
1.1 schwarze 140:
1.24 schwarze 141: switch (sp->layout->vert) {
142: case 2:
143: lborder = "double";
144: break;
145: case 1:
146: lborder = "solid";
1.2 schwarze 147: break;
1.1 schwarze 148: default:
1.24 schwarze 149: lborder = NULL;
150: break;
151: }
1.22 schwarze 152:
1.24 schwarze 153: /* Draw a horizontal line below this row? */
154:
155: bborder = NULL;
156: if ((psp = sp->next) != NULL) {
157: switch (psp->pos) {
158: case TBL_SPAN_DHORIZ:
159: bborder = "double";
160: break;
161: case TBL_SPAN_HORIZ:
162: bborder = "solid";
163: break;
164: default:
165: break;
166: }
167: }
168:
169: tt = print_otag(h, TAG_TR, "ss",
170: "border-left-style", lborder,
171: "border-bottom-style", bborder);
172:
173: for (dp = sp->first; dp != NULL; dp = dp->next) {
174: print_stagq(h, tt);
175:
176: /*
177: * Do not generate <td> elements for continuations
178: * of spanned cells. Larger <td> elements covering
179: * this space were already generated earlier.
180: */
181:
182: cp = dp->layout;
183: if (cp->pos == TBL_CELL_SPAN || cp->pos == TBL_CELL_DOWN ||
184: (dp->string != NULL && strcmp(dp->string, "\\^") == 0))
185: continue;
186:
187: /* Determine the attribute values. */
188:
189: if (dp->hspans > 0) {
190: (void)snprintf(hbuf, sizeof(hbuf),
191: "%d", dp->hspans + 1);
192: hspans = hbuf;
193: } else
194: hspans = NULL;
195: if (dp->vspans > 0) {
196: (void)snprintf(vbuf, sizeof(vbuf),
197: "%d", dp->vspans + 1);
198: vspans = vbuf;
199: } else
200: vspans = NULL;
201:
202: switch (cp->pos) {
203: case TBL_CELL_CENTRE:
204: halign = "center";
205: break;
206: case TBL_CELL_RIGHT:
207: case TBL_CELL_NUMBER:
208: halign = "right";
209: break;
210: default:
211: halign = NULL;
212: break;
1.2 schwarze 213: }
1.24 schwarze 214: if (cp->flags & TBL_CELL_TALIGN)
215: valign = "top";
216: else if (cp->flags & TBL_CELL_BALIGN)
217: valign = "bottom";
218: else
219: valign = NULL;
220:
221: for (i = dp->hspans; i > 0; i--)
222: cp = cp->next;
223: switch (cp->vert) {
224: case 2:
225: rborder = "double";
226: break;
227: case 1:
228: rborder = "solid";
229: break;
230: default:
231: rborder = NULL;
232: break;
233: }
234:
235: /* Print the element and the attributes. */
236:
237: print_otag(h, TAG_TD, "??sss",
238: "colspan", hspans, "rowspan", vspans,
239: "vertical-align", valign,
240: "text-align", halign,
241: "border-right-style", rborder);
1.32 ! schwarze 242: if (dp->layout->pos == TBL_CELL_HORIZ ||
! 243: dp->layout->pos == TBL_CELL_DHORIZ ||
! 244: dp->pos == TBL_DATA_HORIZ ||
! 245: dp->pos == TBL_DATA_DHORIZ)
! 246: print_otag(h, TAG_HR, "");
! 247: else if (dp->string != NULL) {
1.29 schwarze 248: save_font = h->metac;
1.31 schwarze 249: html_setfont(h, dp->layout->font);
1.30 schwarze 250: if (dp->layout->pos == TBL_CELL_LONG)
251: print_text(h, "\\[u2003]"); /* em space */
1.24 schwarze 252: print_text(h, dp->string);
1.29 schwarze 253: html_setfont(h, save_font);
254: }
1.1 schwarze 255: }
256:
1.4 schwarze 257: print_tagq(h, tt);
258:
1.2 schwarze 259: h->flags &= ~HTML_NONOSPACE;
1.1 schwarze 260:
1.11 schwarze 261: if (sp->next == NULL) {
1.2 schwarze 262: assert(h->tbl.cols);
263: free(h->tbl.cols);
264: h->tbl.cols = NULL;
1.4 schwarze 265: print_tblclose(h);
1.1 schwarze 266: }
267: }