hip.data.jsonc source code

1 module hip.data.jsonc;
2 
3 
4 public import hip.data.json;
5 
6 auto parseJSONC()(string jsonc)
7 {
8     version(WebAssembly) static assert(false, "No JSONC for Wasm.");
9     return parseJSON(stripComments(jsonc));
10 }
11 
12 /** 
13 *   Strips single and multi line comments (C style)
14 */
15 string stripComments(string str)
16 {
17     string ret;
18     size_t i = 0;
19     size_t length = str.length;
20     ret.reserve(str.length);
21 
22     while(i < length)
23     {
24         //Don't parse comments inside strings
25         if(str[i] == '"')
26         {
27             size_t left = i;
28             i++;
29             while(i < length && str[i] != '"')
30             {
31                 if(str[i] == '\\')
32                     i++;
33                 i++;
34             }
35             i++; //Skip '"'
36             ret~= str[left..i];
37         }
38         //Parse single liner comments
39         else if(str[i] == '/' && i+1 < length && str[i+1] == '/')
40         {
41             i+=2;
42             while(i < length && str[i] != '\n')
43                 i++;
44         }
45         //Parse multi line comments
46         else if(str[i] == '/' && i+1 < length && str[i+1] == '*')
47         {
48             i+= 2;
49             while(i < length)
50             {
51                 if(str[i] == '*' && i+1 < length && str[i+1] == '/')
52                     break;
53                 i++;
54             }
55             i+= 2;
56         }
57         //Safe check to see if it is in range
58         if(i < length)
59             ret~= str[i];
60         i++;
61     }
62     return ret;
63 }