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Commit | Line | Data |
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d1df5743 JH |
1 | #include <stdio.h> |
2 | #include <stdlib.h> | |
3 | #include "strbuf.h" | |
4 | ||
5 | void strbuf_init(struct strbuf *sb) { | |
6 | sb->buf = 0; | |
7 | sb->eof = sb->alloc = sb->len = 0; | |
8 | } | |
9 | ||
10 | static void strbuf_begin(struct strbuf *sb) { | |
11 | free(sb->buf); | |
12 | strbuf_init(sb); | |
13 | } | |
14 | ||
15 | static void inline strbuf_add(struct strbuf *sb, int ch) { | |
16 | if (sb->alloc <= sb->len) { | |
17 | sb->alloc = sb->alloc * 3 / 2 + 16; | |
18 | sb->buf = realloc(sb->buf, sb->alloc); | |
19 | } | |
20 | sb->buf[sb->len++] = ch; | |
21 | } | |
22 | ||
23 | static void strbuf_end(struct strbuf *sb) { | |
24 | strbuf_add(sb, 0); | |
25 | } | |
26 | ||
27 | void read_line(struct strbuf *sb, FILE *fp, int term) { | |
28 | int ch; | |
29 | strbuf_begin(sb); | |
30 | if (feof(fp)) { | |
31 | sb->eof = 1; | |
32 | return; | |
33 | } | |
34 | while ((ch = fgetc(fp)) != EOF) { | |
35 | if (ch == term) | |
36 | break; | |
37 | strbuf_add(sb, ch); | |
38 | } | |
39 | if (sb->len == 0) | |
40 | sb->eof = 1; | |
41 | strbuf_end(sb); | |
42 | } | |
43 |