1 /* $Id: tbl.c,v 1.40 2015/10/06 18:32:20 schwarze Exp $ */ 2 /* 3 * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> 4 * Copyright (c) 2011, 2015 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 #include <time.h> 27 28 #include "mandoc.h" 29 #include "mandoc_aux.h" 30 #include "libmandoc.h" 31 #include "libroff.h" 32 33 34 enum rofferr 35 tbl_read(struct tbl_node *tbl, int ln, const char *p, int pos) 36 { 37 const char *cp; 38 int active; 39 40 /* 41 * In the options section, proceed to the layout section 42 * after a semicolon, or right away if there is no semicolon. 43 * Ignore semicolons in arguments. 44 */ 45 46 if (tbl->part == TBL_PART_OPTS) { 47 tbl->part = TBL_PART_LAYOUT; 48 active = 1; 49 for (cp = p + pos; *cp != '\0'; cp++) { 50 switch (*cp) { 51 case '(': 52 active = 0; 53 continue; 54 case ')': 55 active = 1; 56 continue; 57 case ';': 58 if (active) 59 break; 60 continue; 61 default: 62 continue; 63 } 64 break; 65 } 66 if (*cp == ';') { 67 tbl_option(tbl, ln, p, &pos); 68 if (p[pos] == '\0') 69 return ROFF_IGN; 70 } 71 } 72 73 /* Process the other section types. */ 74 75 switch (tbl->part) { 76 case TBL_PART_LAYOUT: 77 tbl_layout(tbl, ln, p, pos); 78 return ROFF_IGN; 79 case TBL_PART_CDATA: 80 return tbl_cdata(tbl, ln, p, pos) ? ROFF_TBL : ROFF_IGN; 81 default: 82 break; 83 } 84 85 tbl_data(tbl, ln, p, pos); 86 return ROFF_TBL; 87 } 88 89 struct tbl_node * 90 tbl_alloc(int pos, int line, struct mparse *parse) 91 { 92 struct tbl_node *tbl; 93 94 tbl = mandoc_calloc(1, sizeof(*tbl)); 95 tbl->line = line; 96 tbl->pos = pos; 97 tbl->parse = parse; 98 tbl->part = TBL_PART_OPTS; 99 tbl->opts.tab = '\t'; 100 tbl->opts.decimal = '.'; 101 return tbl; 102 } 103 104 void 105 tbl_free(struct tbl_node *tbl) 106 { 107 struct tbl_row *rp; 108 struct tbl_cell *cp; 109 struct tbl_span *sp; 110 struct tbl_dat *dp; 111 112 while ((rp = tbl->first_row) != NULL) { 113 tbl->first_row = rp->next; 114 while (rp->first != NULL) { 115 cp = rp->first; 116 rp->first = cp->next; 117 free(cp); 118 } 119 free(rp); 120 } 121 122 while ((sp = tbl->first_span) != NULL) { 123 tbl->first_span = sp->next; 124 while (sp->first != NULL) { 125 dp = sp->first; 126 sp->first = dp->next; 127 free(dp->string); 128 free(dp); 129 } 130 free(sp); 131 } 132 133 free(tbl); 134 } 135 136 void 137 tbl_restart(int line, int pos, struct tbl_node *tbl) 138 { 139 if (tbl->part == TBL_PART_CDATA) 140 mandoc_msg(MANDOCERR_TBLDATA_BLK, tbl->parse, 141 line, pos, "T&"); 142 143 tbl->part = TBL_PART_LAYOUT; 144 tbl->line = line; 145 tbl->pos = pos; 146 } 147 148 const struct tbl_span * 149 tbl_span(struct tbl_node *tbl) 150 { 151 struct tbl_span *span; 152 153 assert(tbl); 154 span = tbl->current_span ? tbl->current_span->next 155 : tbl->first_span; 156 if (span) 157 tbl->current_span = span; 158 return span; 159 } 160 161 int 162 tbl_end(struct tbl_node **tblp) 163 { 164 struct tbl_node *tbl; 165 struct tbl_span *sp; 166 167 tbl = *tblp; 168 *tblp = NULL; 169 170 if (tbl->part == TBL_PART_CDATA) 171 mandoc_msg(MANDOCERR_TBLDATA_BLK, tbl->parse, 172 tbl->line, tbl->pos, "TE"); 173 174 sp = tbl->first_span; 175 while (sp != NULL && sp->first == NULL) 176 sp = sp->next; 177 if (sp == NULL) { 178 mandoc_msg(MANDOCERR_TBLDATA_NONE, tbl->parse, 179 tbl->line, tbl->pos, NULL); 180 return 0; 181 } 182 return 1; 183 } 184