1 /* $Id: tbl_html.c,v 1.38 2021/09/09 16:52:52 schwarze Exp $ */ 2 /* 3 * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv> 4 * Copyright (c) 2014,2015,2017,2018,2021 Ingo Schwarze <schwarze@openbsd.org> 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" 19 20 #include <sys/types.h> 21 22 #include <assert.h> 23 #include <stdio.h> 24 #include <stdlib.h> 25 #include <string.h> 26 27 #include "mandoc.h" 28 #include "roff.h" 29 #include "tbl.h" 30 #include "out.h" 31 #include "html.h" 32 33 static void html_tblopen(struct html *, const struct tbl_span *); 34 static size_t html_tbl_len(size_t, void *); 35 static size_t html_tbl_strlen(const char *, void *); 36 static size_t html_tbl_sulen(const struct roffsu *, void *); 37 38 39 static size_t 40 html_tbl_len(size_t sz, void *arg) 41 { 42 return sz; 43 } 44 45 static size_t 46 html_tbl_strlen(const char *p, void *arg) 47 { 48 return strlen(p); 49 } 50 51 static size_t 52 html_tbl_sulen(const struct roffsu *su, void *arg) 53 { 54 if (su->scale < 0.0) 55 return 0; 56 57 switch (su->unit) { 58 case SCALE_FS: /* 2^16 basic units */ 59 return su->scale * 65536.0 / 24.0; 60 case SCALE_IN: /* 10 characters per inch */ 61 return su->scale * 10.0; 62 case SCALE_CM: /* 2.54 cm per inch */ 63 return su->scale * 10.0 / 2.54; 64 case SCALE_PC: /* 6 pica per inch */ 65 case SCALE_VS: 66 return su->scale * 10.0 / 6.0; 67 case SCALE_EN: 68 case SCALE_EM: 69 return su->scale; 70 case SCALE_PT: /* 12 points per pica */ 71 return su->scale * 10.0 / 6.0 / 12.0; 72 case SCALE_BU: /* 24 basic units per character */ 73 return su->scale / 24.0; 74 case SCALE_MM: /* 1/1000 inch */ 75 return su->scale / 100.0; 76 default: 77 abort(); 78 } 79 } 80 81 static void 82 html_tblopen(struct html *h, const struct tbl_span *sp) 83 { 84 html_close_paragraph(h); 85 if (h->tbl.cols == NULL) { 86 h->tbl.len = html_tbl_len; 87 h->tbl.slen = html_tbl_strlen; 88 h->tbl.sulen = html_tbl_sulen; 89 tblcalc(&h->tbl, sp, 0, 0); 90 } 91 assert(NULL == h->tblt); 92 h->tblt = print_otag(h, TAG_TABLE, "c?ss", "tbl", 93 "border", 94 sp->opts->opts & TBL_OPT_ALLBOX ? "1" : NULL, 95 "border-style", 96 sp->opts->opts & TBL_OPT_DBOX ? "double" : 97 sp->opts->opts & TBL_OPT_BOX ? "solid" : NULL, 98 "border-top-style", 99 sp->pos == TBL_SPAN_DHORIZ ? "double" : 100 sp->pos == TBL_SPAN_HORIZ ? "solid" : NULL); 101 } 102 103 void 104 print_tblclose(struct html *h) 105 { 106 107 assert(h->tblt); 108 print_tagq(h, h->tblt); 109 h->tblt = NULL; 110 } 111 112 void 113 print_tbl(struct html *h, const struct tbl_span *sp) 114 { 115 const struct tbl_dat *dp; 116 const struct tbl_cell *cp; 117 const struct tbl_span *psp; 118 const struct roffcol *col; 119 struct tag *tt; 120 const char *hspans, *vspans, *halign, *valign; 121 const char *bborder, *lborder, *rborder; 122 const char *ccp; 123 char hbuf[4], vbuf[4]; 124 size_t sz; 125 enum mandoc_esc save_font; 126 int i; 127 128 if (h->tblt == NULL) 129 html_tblopen(h, sp); 130 131 /* 132 * Horizontal lines spanning the whole table 133 * are handled by previous or following table rows. 134 */ 135 136 if (sp->pos != TBL_SPAN_DATA) 137 return; 138 139 /* Inhibit printing of spaces: we do padding ourselves. */ 140 141 h->flags |= HTML_NONOSPACE; 142 h->flags |= HTML_NOSPACE; 143 144 /* Draw a vertical line left of this row? */ 145 146 switch (sp->layout->vert) { 147 case 2: 148 lborder = "double"; 149 break; 150 case 1: 151 lborder = "solid"; 152 break; 153 default: 154 lborder = NULL; 155 break; 156 } 157 158 /* Draw a horizontal line below this row? */ 159 160 bborder = NULL; 161 if ((psp = sp->next) != NULL) { 162 switch (psp->pos) { 163 case TBL_SPAN_DHORIZ: 164 bborder = "double"; 165 break; 166 case TBL_SPAN_HORIZ: 167 bborder = "solid"; 168 break; 169 default: 170 break; 171 } 172 } 173 174 tt = print_otag(h, TAG_TR, "ss", 175 "border-left-style", lborder, 176 "border-bottom-style", bborder); 177 178 for (dp = sp->first; dp != NULL; dp = dp->next) { 179 print_stagq(h, tt); 180 181 /* 182 * Do not generate <td> elements for continuations 183 * of spanned cells. Larger <td> elements covering 184 * this space were already generated earlier. 185 */ 186 187 cp = dp->layout; 188 if (cp->pos == TBL_CELL_SPAN || cp->pos == TBL_CELL_DOWN || 189 (dp->string != NULL && strcmp(dp->string, "\\^") == 0)) 190 continue; 191 192 /* Determine the attribute values. */ 193 194 if (dp->hspans > 0) { 195 (void)snprintf(hbuf, sizeof(hbuf), 196 "%d", dp->hspans + 1); 197 hspans = hbuf; 198 } else 199 hspans = NULL; 200 if (dp->vspans > 0) { 201 (void)snprintf(vbuf, sizeof(vbuf), 202 "%d", dp->vspans + 1); 203 vspans = vbuf; 204 } else 205 vspans = NULL; 206 207 switch (cp->pos) { 208 case TBL_CELL_CENTRE: 209 halign = "center"; 210 break; 211 case TBL_CELL_RIGHT: 212 case TBL_CELL_NUMBER: 213 halign = "right"; 214 break; 215 default: 216 halign = NULL; 217 break; 218 } 219 if (cp->flags & TBL_CELL_TALIGN) 220 valign = "top"; 221 else if (cp->flags & TBL_CELL_BALIGN) 222 valign = "bottom"; 223 else 224 valign = NULL; 225 226 for (i = dp->hspans; i > 0; i--) 227 cp = cp->next; 228 switch (cp->vert) { 229 case 2: 230 rborder = "double"; 231 break; 232 case 1: 233 rborder = "solid"; 234 break; 235 default: 236 rborder = NULL; 237 break; 238 } 239 240 /* Print the element and the attributes. */ 241 242 print_otag(h, TAG_TD, "??sss", 243 "colspan", hspans, "rowspan", vspans, 244 "vertical-align", valign, 245 "text-align", halign, 246 "border-right-style", rborder); 247 if (dp->layout->pos == TBL_CELL_HORIZ || 248 dp->layout->pos == TBL_CELL_DHORIZ || 249 dp->pos == TBL_DATA_HORIZ || 250 dp->pos == TBL_DATA_DHORIZ) 251 print_otag(h, TAG_HR, ""); 252 else if (dp->string != NULL) { 253 save_font = h->metac; 254 html_setfont(h, dp->layout->font); 255 if (dp->layout->pos == TBL_CELL_LONG) 256 print_text(h, "\\[u2003]"); /* em space */ 257 print_text(h, dp->string); 258 if (dp->layout->pos == TBL_CELL_NUMBER) { 259 col = h->tbl.cols + dp->layout->col; 260 if (col->decimal < col->nwidth) { 261 if ((ccp = strrchr(dp->string, 262 sp->opts->decimal)) == NULL) { 263 /* Punctuation space. */ 264 print_text(h, "\\[u2008]"); 265 ccp = strchr(dp->string, '\0'); 266 } else 267 ccp++; 268 sz = col->nwidth - col->decimal; 269 while (--sz > 0) { 270 if (*ccp == '\0') 271 /* Figure space. */ 272 print_text(h, 273 "\\[u2007]"); 274 else 275 ccp++; 276 } 277 } 278 } 279 html_setfont(h, save_font); 280 } 281 } 282 283 print_tagq(h, tt); 284 285 h->flags &= ~HTML_NONOSPACE; 286 287 if (sp->next == NULL) { 288 assert(h->tbl.cols); 289 free(h->tbl.cols); 290 h->tbl.cols = NULL; 291 print_tblclose(h); 292 } 293 } 294