fookb/params.c

   1 #include <stdio.h>
   2 #include <string.h>             /* strlen & strcat */
   3 #include <ctype.h>              /* toupper */
   4 #include <stdlib.h>
   5 #include <WINGs/WUtil.h>
   6 #include "params.h"
   7 #include "opts.h"
   8
   9 /* Let's make lint happy */
  10 #define lputs(x) (void)puts(x)
  11
  12 char *read_param(char *string)
  13 {
  14         WMPropList *pl;
  15         WMPropList *value;
  16         WMPropList *tmp;
  17         char *path;
  18         char *result;
  19
  20 /* Command line parameters take precedence over all */
  21
  22         if (!strcmp(string, "Icon1") && icon1)
  23                 return icon1;
  24         if (!strcmp(string, "Icon2") && icon2)
  25                 return icon2;
  26         if (!strcmp(string, "Icon3") && icon3)
  27                 return icon3;
  28         if (!strcmp(string, "Icon4") && icon4)
  29                 return icon4;
  30         if (!strcmp(string, "IconBoom") && iconboom)
  31                 return iconboom;
  32
  33         /*
  34          * Here we start the game with property lists.
  35          * pl will be property list, read from DEFAULTS_FILE.
  36          * tmp will be temporary key for this property list,
  37          * constructed using ``string'', supplied to function.
  38          * value will be property list, which contain the value
  39          * of parameter
  40          */
  41
  42         path = wexpandpath(DEFAULTS_FILE);
  43         pl = WMReadPropListFromFile(path);
  44         wfree(path);
  45
  46         if (!pl) {
  47                 lputs("Cannot open config file: ");
  48                 lputs(DEFAULTS_FILE);
  49                 exit(EXIT_FAILURE);
  50         }
  51
  52         tmp = WMCreatePLString(string);
  53         value = WMGetFromPLDictionary(pl, tmp);
  54         WMReleasePropList(tmp);
  55
  56         /*
  57          * pl and value objects will exist as long as fookb is running
  58          */
  59
  60         if (!value) {
  61                 lputs("Cannot find in config file value for: ");
  62                 lputs(string);
  63                 exit(EXIT_FAILURE);
  64         }
  65
  66         if (!WMIsPLString(value)) {
  67                 lputs("Value for: ");
  68                 lputs(string);
  69                 lputs("in config file is not a string.");
  70                 exit(EXIT_FAILURE);
  71         }
  72
  73         result = WMGetFromPLString(value);
  74
  75         if (!result) {
  76                 lputs("Something wrong with libWUtils :(");
  77                 lputs("Please report this error to fookb author.");
  78                 exit(EXIT_FAILURE);
  79         }
  80
  81         return result;
  82
  83 }