1 /* $OpenBSD: roff_html.c,v 1.10 2017/06/14 22:50:37 schwarze Exp $ */ 2 /* 3 * Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv> 4 * Copyright (c) 2014, 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 <stddef.h> 22 23 #include "roff.h" 24 #include "out.h" 25 #include "html.h" 26 27 #define ROFF_HTML_ARGS struct html *h, const struct roff_node *n 28 29 typedef void (*roff_html_pre_fp)(ROFF_HTML_ARGS); 30 31 static void roff_html_pre_br(ROFF_HTML_ARGS); 32 static void roff_html_pre_ce(ROFF_HTML_ARGS); 33 static void roff_html_pre_sp(ROFF_HTML_ARGS); 34 35 static const roff_html_pre_fp roff_html_pre_acts[ROFF_MAX] = { 36 roff_html_pre_br, /* br */ 37 roff_html_pre_ce, /* ce */ 38 NULL, /* ft */ 39 NULL, /* ll */ 40 NULL, /* mc */ 41 NULL, /* po */ 42 roff_html_pre_ce, /* rj */ 43 roff_html_pre_sp, /* sp */ 44 NULL, /* ta */ 45 NULL, /* ti */ 46 }; 47 48 49 void 50 roff_html_pre(struct html *h, const struct roff_node *n) 51 { 52 assert(n->tok < ROFF_MAX); 53 if (roff_html_pre_acts[n->tok] != NULL) 54 (*roff_html_pre_acts[n->tok])(h, n); 55 } 56 57 static void 58 roff_html_pre_br(ROFF_HTML_ARGS) 59 { 60 struct tag *t; 61 62 t = print_otag(h, TAG_DIV, ""); 63 print_text(h, "\\~"); /* So the div isn't empty. */ 64 print_tagq(h, t); 65 } 66 67 static void 68 roff_html_pre_ce(ROFF_HTML_ARGS) 69 { 70 for (n = n->child->next; n != NULL; n = n->next) { 71 if (n->type == ROFFT_TEXT) { 72 if (n->flags & NODE_LINE) 73 roff_html_pre_br(h, n); 74 print_text(h, n->string); 75 } else 76 roff_html_pre(h, n); 77 } 78 roff_html_pre_br(h, n); 79 } 80 81 static void 82 roff_html_pre_sp(ROFF_HTML_ARGS) 83 { 84 struct roffsu su; 85 86 SCALE_VS_INIT(&su, 1); 87 if ((n = n->child) != NULL) { 88 if (a2roffsu(n->string, &su, SCALE_VS) == NULL) 89 su.scale = 1.0; 90 else if (su.scale < 0.0) 91 su.scale = 0.0; 92 } 93 print_otag(h, TAG_DIV, "suh", &su); 94 print_text(h, "\\~"); /* So the div isn't empty. */ 95 } 96