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