1 /* $OpenBSD: tbl_html.c,v 1.19 2018/06/25 13:46:01 schwarze Exp $ */ 2 /* 3 * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv> 4 * Copyright (c) 2014, 2015, 2017 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 <sys/types.h> 19 20 #include <assert.h> 21 #include <stdio.h> 22 #include <stdlib.h> 23 #include <string.h> 24 25 #include "mandoc.h" 26 #include "out.h" 27 #include "html.h" 28 29 static void html_tblopen(struct html *, const struct tbl_span *); 30 static size_t html_tbl_len(size_t, void *); 31 static size_t html_tbl_strlen(const char *, void *); 32 static size_t html_tbl_sulen(const struct roffsu *, void *); 33 34 35 static size_t 36 html_tbl_len(size_t sz, void *arg) 37 { 38 return sz; 39 } 40 41 static size_t 42 html_tbl_strlen(const char *p, void *arg) 43 { 44 return strlen(p); 45 } 46 47 static size_t 48 html_tbl_sulen(const struct roffsu *su, void *arg) 49 { 50 if (su->scale < 0.0) 51 return 0; 52 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 } 75 } 76 77 static void 78 html_tblopen(struct html *h, const struct tbl_span *sp) 79 { 80 if (h->tbl.cols == NULL) { 81 h->tbl.len = html_tbl_len; 82 h->tbl.slen = html_tbl_strlen; 83 h->tbl.sulen = html_tbl_sulen; 84 tblcalc(&h->tbl, sp, 0, 0); 85 } 86 assert(NULL == h->tblt); 87 h->tblt = print_otag(h, TAG_TABLE, "c", "tbl"); 88 } 89 90 void 91 print_tblclose(struct html *h) 92 { 93 94 assert(h->tblt); 95 print_tagq(h, h->tblt); 96 h->tblt = NULL; 97 } 98 99 void 100 print_tbl(struct html *h, const struct tbl_span *sp) 101 { 102 const struct tbl_dat *dp; 103 struct tag *tt; 104 int ic; 105 106 /* Inhibit printing of spaces: we do padding ourselves. */ 107 108 if (h->tblt == NULL) 109 html_tblopen(h, sp); 110 111 assert(h->tblt); 112 113 h->flags |= HTML_NONOSPACE; 114 h->flags |= HTML_NOSPACE; 115 116 tt = print_otag(h, TAG_TR, ""); 117 118 switch (sp->pos) { 119 case TBL_SPAN_HORIZ: 120 case TBL_SPAN_DHORIZ: 121 print_otag(h, TAG_TD, "?", "colspan", "0"); 122 break; 123 default: 124 dp = sp->first; 125 for (ic = 0; ic < sp->opts->cols; ic++) { 126 print_stagq(h, tt); 127 print_otag(h, TAG_TD, ""); 128 129 if (dp == NULL || dp->layout->col > ic) 130 continue; 131 if (dp->layout->pos != TBL_CELL_DOWN) 132 if (dp->string != NULL) 133 print_text(h, dp->string); 134 dp = dp->next; 135 } 136 break; 137 } 138 139 print_tagq(h, tt); 140 141 h->flags &= ~HTML_NONOSPACE; 142 143 if (sp->next == NULL) { 144 assert(h->tbl.cols); 145 free(h->tbl.cols); 146 h->tbl.cols = NULL; 147 print_tblclose(h); 148 } 149 150 } 151