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0 /*
1 * ISC License
2 * Copyright (c) 2023 RMF <rawmonk@firemail.cc>
3 */
4 #include <stdio.h>
5 #include <stdlib.h>
6 #include <stdint.h>
7 #include <unistd.h>
8 #include "macro.h"
9 #include "utf8.h"
10 #include "wcwidth.h"
11 #define PAGE_INTERNAL
12 #include "page.h"
13 #include "request.h"
14 #define PARSER_INTERNAL
15 #include "parser.h"
16
17 int renderable(uint32_t codepoint) {
18 return !(codepoint == 0xFEFF ||
19 (codepoint < ' ' && codepoint != '\n' && codepoint != '\t'));
20 }
21
22 int readnext(int fd, uint32_t *ch, size_t *pos) {
23
24 char buf[64];
25 int len;
26
27 if (read(fd, buf, 1) != 1) return -1;
28 len = utf8_char_length(*buf);
29 if (len > 1 && read(fd, &buf[1], len - 1) != len - 1) return -1;
30 if (len > 0 && pos) *pos += len;
31 utf8_char_to_unicode(ch, buf);
32
33 return 0;
34 }
35
36 int vread(int fd, void *buf, size_t nbytes) {
37 ssize_t len = read(fd, buf, nbytes);
38 return len != (ssize_t)nbytes;
39 }
40