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comparison util.c @ 495:39cad98d2789

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Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
author Mike Pavone <pavone@retrodev.com>
date Mon, 28 Oct 2013 19:37:30 -0700
parents
children 6fc71114d145
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492:dffc07104b09 495:39cad98d2789
1 #include <string.h>
2 #include <stdlib.h>
3 #include <stdio.h>
4 #include <ctype.h>
5
6 char * alloc_concat(char * first, char * second)
7 {
8 int flen = strlen(first);
9 int slen = strlen(second);
10 char * ret = malloc(flen + slen + 1);
11 memcpy(ret, first, flen);
12 memcpy(ret+flen, second, slen+1);
13 return ret;
14 }
15
16 char * alloc_concat_m(int num_parts, char ** parts)
17 {
18 int total = 0;
19 for (int i = 0; i < num_parts; i++) {
20 total += strlen(parts[i]);
21 }
22 char * ret = malloc(total + 1);
23 *ret = 0;
24 for (int i = 0; i < num_parts; i++) {
25 strcat(ret, parts[i]);
26 }
27 return ret;
28 }
29
30 long file_size(FILE * f)
31 {
32 fseek(f, 0, SEEK_END);
33 long fsize = ftell(f);
34 fseek(f, 0, SEEK_SET);
35 return fsize;
36 }
37
38 char * strip_ws(char * text)
39 {
40 while (*text && (!isprint(*text) || isblank(*text)))
41 {
42 text++;
43 }
44 char * ret = text;
45 text = ret + strlen(ret) - 1;
46 while (text > ret && (!isprint(*text) || isblank(*text)))
47 {
48 *text = 0;
49 text--;
50 }
51 return ret;
52 }
53
54 char * split_keyval(char * text)
55 {
56 while (*text && !isblank(*text))
57 {
58 text++;
59 }
60 if (!*text) {
61 return text;
62 }
63 *text = 0;
64 return text+1;
65 }