70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
/* Copyright (C) 2018 Curtis McEnroe <june@causal.agency>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <assert.h>
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#include <err.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sysexits.h>
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#include <unistd.h>
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#include "chat.h"
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static const char *SCHEMES[] = {
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"https:",
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"http:",
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"ftp:",
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};
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static const size_t SCHEMES_LEN = sizeof(SCHEMES) / sizeof(SCHEMES[0]);
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enum { RING_LEN = 16 };
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static char *ring[RING_LEN];
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static size_t last;
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static_assert(!(RING_LEN & (RING_LEN - 1)), "power of two RING_LEN");
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static void push(const char *url, size_t len) {
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free(ring[last]);
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ring[last++] = strndup(url, len);
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last &= RING_LEN - 1;
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}
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void urlScan(const char *str) {
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while (str[0]) {
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size_t len = 1;
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for (size_t i = 0; i < SCHEMES_LEN; ++i) {
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if (strncmp(str, SCHEMES[i], strlen(SCHEMES[i]))) continue;
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len = strcspn(str, " >\"");
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push(str, len);
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}
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str = &str[len];
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}
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}
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void urlList(void) {
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uiHide();
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for (size_t i = 0; i < RING_LEN; ++i) {
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char *url = ring[(i + last) & (RING_LEN - 1)];
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if (url) printf("%s\n", url);
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}
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}
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void urlOpen(size_t i) {
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char *url = ring[(last - i) & (RING_LEN - 1)];
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if (!url) return;
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char *argv[] = { "open", url, NULL };
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spawn(argv);
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}
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