Annotation of src/usr.bin/mandoc/tbl_html.c, Revision 1.35
1.35 ! schwarze 1: /* $OpenBSD: tbl_html.c,v 1.34 2022/01/12 04:43:21 schwarze Exp $ */
1.1 schwarze 2: /*
1.35 ! schwarze 3: * Copyright (c) 2014, 2015, 2017, 2018, 2021, 2022
! 4: * Ingo Schwarze <schwarze@openbsd.org>
1.5 schwarze 5: * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 schwarze 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: */
1.8 schwarze 19: #include <sys/types.h>
20:
1.1 schwarze 21: #include <assert.h>
22: #include <stdio.h>
23: #include <stdlib.h>
24: #include <string.h>
25:
1.26 schwarze 26: #include "mandoc.h"
1.28 schwarze 27: #include "roff.h"
1.25 schwarze 28: #include "tbl.h"
1.1 schwarze 29: #include "out.h"
30: #include "html.h"
31:
1.4 schwarze 32: static void html_tblopen(struct html *, const struct tbl_span *);
1.2 schwarze 33: static size_t html_tbl_len(size_t, void *);
34: static size_t html_tbl_strlen(const char *, void *);
1.16 schwarze 35: static size_t html_tbl_sulen(const struct roffsu *, void *);
1.2 schwarze 36:
1.7 schwarze 37:
1.2 schwarze 38: static size_t
39: html_tbl_len(size_t sz, void *arg)
40: {
1.12 schwarze 41: return sz;
1.2 schwarze 42: }
43:
44: static size_t
45: html_tbl_strlen(const char *p, void *arg)
46: {
1.16 schwarze 47: return strlen(p);
48: }
1.2 schwarze 49:
1.16 schwarze 50: static size_t
51: html_tbl_sulen(const struct roffsu *su, void *arg)
52: {
1.18 schwarze 53: if (su->scale < 0.0)
54: return 0;
55:
1.16 schwarze 56: switch (su->unit) {
57: case SCALE_FS: /* 2^16 basic units */
58: return su->scale * 65536.0 / 24.0;
59: case SCALE_IN: /* 10 characters per inch */
60: return su->scale * 10.0;
61: case SCALE_CM: /* 2.54 cm per inch */
62: return su->scale * 10.0 / 2.54;
63: case SCALE_PC: /* 6 pica per inch */
64: case SCALE_VS:
65: return su->scale * 10.0 / 6.0;
66: case SCALE_EN:
67: case SCALE_EM:
68: return su->scale;
69: case SCALE_PT: /* 12 points per pica */
70: return su->scale * 10.0 / 6.0 / 12.0;
71: case SCALE_BU: /* 24 basic units per character */
72: return su->scale / 24.0;
73: case SCALE_MM: /* 1/1000 inch */
74: return su->scale / 100.0;
75: default:
76: abort();
77: }
1.2 schwarze 78: }
79:
1.4 schwarze 80: static void
81: html_tblopen(struct html *h, const struct tbl_span *sp)
82: {
1.27 schwarze 83: html_close_paragraph(h);
1.11 schwarze 84: if (h->tbl.cols == NULL) {
1.4 schwarze 85: h->tbl.len = html_tbl_len;
86: h->tbl.slen = html_tbl_strlen;
1.16 schwarze 87: h->tbl.sulen = html_tbl_sulen;
1.17 schwarze 88: tblcalc(&h->tbl, sp, 0, 0);
1.4 schwarze 89: }
90: assert(NULL == h->tblt);
1.24 schwarze 91: h->tblt = print_otag(h, TAG_TABLE, "c?ss", "tbl",
92: "border",
93: sp->opts->opts & TBL_OPT_ALLBOX ? "1" : NULL,
94: "border-style",
95: sp->opts->opts & TBL_OPT_DBOX ? "double" :
96: sp->opts->opts & TBL_OPT_BOX ? "solid" : NULL,
97: "border-top-style",
98: sp->pos == TBL_SPAN_DHORIZ ? "double" :
99: sp->pos == TBL_SPAN_HORIZ ? "solid" : NULL);
1.4 schwarze 100: }
101:
102: void
103: print_tblclose(struct html *h)
104: {
105:
106: assert(h->tblt);
107: print_tagq(h, h->tblt);
108: h->tblt = NULL;
109: }
110:
1.1 schwarze 111: void
112: print_tbl(struct html *h, const struct tbl_span *sp)
113: {
1.21 schwarze 114: const struct tbl_dat *dp;
1.24 schwarze 115: const struct tbl_cell *cp;
116: const struct tbl_span *psp;
1.33 schwarze 117: const struct roffcol *col;
1.21 schwarze 118: struct tag *tt;
119: const char *hspans, *vspans, *halign, *valign;
1.24 schwarze 120: const char *bborder, *lborder, *rborder;
1.33 schwarze 121: const char *ccp;
1.21 schwarze 122: char hbuf[4], vbuf[4];
1.33 schwarze 123: size_t sz;
1.29 schwarze 124: enum mandoc_esc save_font;
1.24 schwarze 125: int i;
1.2 schwarze 126:
1.9 schwarze 127: if (h->tblt == NULL)
1.4 schwarze 128: html_tblopen(h, sp);
129:
1.24 schwarze 130: /*
131: * Horizontal lines spanning the whole table
132: * are handled by previous or following table rows.
133: */
134:
135: if (sp->pos != TBL_SPAN_DATA)
1.35 ! schwarze 136: goto out;
1.24 schwarze 137:
138: /* Inhibit printing of spaces: we do padding ourselves. */
1.4 schwarze 139:
1.2 schwarze 140: h->flags |= HTML_NONOSPACE;
141: h->flags |= HTML_NOSPACE;
142:
1.24 schwarze 143: /* Draw a vertical line left of this row? */
1.1 schwarze 144:
1.24 schwarze 145: switch (sp->layout->vert) {
146: case 2:
147: lborder = "double";
148: break;
149: case 1:
150: lborder = "solid";
1.2 schwarze 151: break;
1.1 schwarze 152: default:
1.24 schwarze 153: lborder = NULL;
154: break;
155: }
1.22 schwarze 156:
1.24 schwarze 157: /* Draw a horizontal line below this row? */
158:
159: bborder = NULL;
160: if ((psp = sp->next) != NULL) {
161: switch (psp->pos) {
162: case TBL_SPAN_DHORIZ:
163: bborder = "double";
164: break;
165: case TBL_SPAN_HORIZ:
166: bborder = "solid";
167: break;
168: default:
169: break;
170: }
171: }
172:
173: tt = print_otag(h, TAG_TR, "ss",
174: "border-left-style", lborder,
175: "border-bottom-style", bborder);
176:
177: for (dp = sp->first; dp != NULL; dp = dp->next) {
178: print_stagq(h, tt);
179:
180: /*
181: * Do not generate <td> elements for continuations
182: * of spanned cells. Larger <td> elements covering
183: * this space were already generated earlier.
184: */
185:
186: cp = dp->layout;
187: if (cp->pos == TBL_CELL_SPAN || cp->pos == TBL_CELL_DOWN ||
188: (dp->string != NULL && strcmp(dp->string, "\\^") == 0))
189: continue;
190:
191: /* Determine the attribute values. */
192:
193: if (dp->hspans > 0) {
194: (void)snprintf(hbuf, sizeof(hbuf),
195: "%d", dp->hspans + 1);
196: hspans = hbuf;
197: } else
198: hspans = NULL;
199: if (dp->vspans > 0) {
200: (void)snprintf(vbuf, sizeof(vbuf),
201: "%d", dp->vspans + 1);
202: vspans = vbuf;
203: } else
204: vspans = NULL;
205:
206: switch (cp->pos) {
207: case TBL_CELL_CENTRE:
208: halign = "center";
209: break;
210: case TBL_CELL_RIGHT:
211: case TBL_CELL_NUMBER:
212: halign = "right";
213: break;
214: default:
215: halign = NULL;
216: break;
1.2 schwarze 217: }
1.24 schwarze 218: if (cp->flags & TBL_CELL_TALIGN)
219: valign = "top";
220: else if (cp->flags & TBL_CELL_BALIGN)
221: valign = "bottom";
222: else
223: valign = NULL;
224:
225: for (i = dp->hspans; i > 0; i--)
226: cp = cp->next;
227: switch (cp->vert) {
228: case 2:
229: rborder = "double";
230: break;
231: case 1:
232: rborder = "solid";
233: break;
234: default:
235: rborder = NULL;
236: break;
237: }
238:
239: /* Print the element and the attributes. */
240:
241: print_otag(h, TAG_TD, "??sss",
242: "colspan", hspans, "rowspan", vspans,
243: "vertical-align", valign,
244: "text-align", halign,
245: "border-right-style", rborder);
1.32 schwarze 246: if (dp->layout->pos == TBL_CELL_HORIZ ||
247: dp->layout->pos == TBL_CELL_DHORIZ ||
248: dp->pos == TBL_DATA_HORIZ ||
1.34 schwarze 249: dp->pos == TBL_DATA_NHORIZ ||
250: dp->pos == TBL_DATA_DHORIZ ||
251: dp->pos == TBL_DATA_NDHORIZ)
1.32 schwarze 252: print_otag(h, TAG_HR, "");
253: else if (dp->string != NULL) {
1.29 schwarze 254: save_font = h->metac;
1.31 schwarze 255: html_setfont(h, dp->layout->font);
1.30 schwarze 256: if (dp->layout->pos == TBL_CELL_LONG)
257: print_text(h, "\\[u2003]"); /* em space */
1.24 schwarze 258: print_text(h, dp->string);
1.33 schwarze 259: if (dp->layout->pos == TBL_CELL_NUMBER) {
260: col = h->tbl.cols + dp->layout->col;
261: if (col->decimal < col->nwidth) {
262: if ((ccp = strrchr(dp->string,
263: sp->opts->decimal)) == NULL) {
264: /* Punctuation space. */
265: print_text(h, "\\[u2008]");
266: ccp = strchr(dp->string, '\0');
267: } else
268: ccp++;
269: sz = col->nwidth - col->decimal;
270: while (--sz > 0) {
271: if (*ccp == '\0')
272: /* Figure space. */
273: print_text(h,
274: "\\[u2007]");
275: else
276: ccp++;
277: }
278: }
279: }
1.29 schwarze 280: html_setfont(h, save_font);
281: }
1.1 schwarze 282: }
283:
1.4 schwarze 284: print_tagq(h, tt);
285:
1.2 schwarze 286: h->flags &= ~HTML_NONOSPACE;
1.1 schwarze 287:
1.35 ! schwarze 288: out:
1.11 schwarze 289: if (sp->next == NULL) {
1.2 schwarze 290: assert(h->tbl.cols);
291: free(h->tbl.cols);
292: h->tbl.cols = NULL;
1.4 schwarze 293: print_tblclose(h);
1.1 schwarze 294: }
295: }