2 * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
23 #include "telescope.h"
27 * Load a text/gemini page given the string page. Always returns 0.
30 load_page_from_str(struct tab *tab, const char *page)
32 erase_buffer(&tab->buffer);
33 parser_init(tab, gemtext_initparser);
34 if (!tab->buffer.page.parse(&tab->buffer.page, page, strlen(page)))
36 if (!tab->buffer.page.free(&tab->buffer.page))
38 ui_on_tab_refresh(tab);
39 ui_on_tab_loaded(tab);
44 parser_init(struct tab *tab, parserfn fn)
46 fn(&tab->buffer.page);
50 parser_parse(struct tab *tab, const char *chunk, size_t len)
52 return tab->buffer.page.parse(&tab->buffer.page, chunk, len);
56 parser_free(struct tab *tab)
61 r = tab->buffer.page.free(&tab->buffer.page);
63 /* fallback to the host as title if nothing else */
64 if (*tab->buffer.page.title != '\0')
67 if ((tilde = strstr(tab->hist_cur->h, "/~")) != NULL) {
68 strlcpy(tab->buffer.page.title, tilde+1,
69 sizeof(tab->buffer.page.title));
71 if ((slash = strchr(tab->buffer.page.title, '/')) != NULL)
74 strlcpy(tab->buffer.page.title, tab->uri.host,
75 sizeof(tab->buffer.page.title));
81 parser_append(struct parser *p, const char *buf, size_t len)
86 newlen = len + p->len;
87 if ((t = calloc(1, newlen)) == NULL)
89 memcpy(t, p->buf, p->len);
90 memcpy(t + p->len, buf, len);
98 parser_set_buf(struct parser *p, const char *buf, size_t len)
110 * p->buf and buf can (and probably almost always will)
114 if ((tmp = calloc(1, len)) == NULL)
116 memcpy(tmp, buf, len);
124 parser_foreach_line(struct parser *p, const char *buf, size_t size,
131 if (!parser_append(p, buf, size))
136 if (!(p->flags & PARSER_IN_BODY) && len < 3)
139 if (!(p->flags & PARSER_IN_BODY)) {
140 p->flags |= PARSER_IN_BODY;
143 * drop the BOM: only UTF-8 is supported, and there
144 * it's useless; some editors may still add one
147 if (memmem(b, len, "\xEF\xBB\xBF", 3) == b) {
153 /* drop every "funny" ASCII character */
154 for (i = 0; i < len; ) {
156 if ((ch >= ' ' || ch == '\n' || ch == '\t')
157 && ch != 127) { /* del */
161 memmove(&b[i], &b[i+1], len - i - 1);
166 if ((e = memmem((char*)b, len, "\n", 1)) == NULL)
183 return parser_set_buf(p, b, len);