| 1 |
#include <stdio.h> |
| 2 |
#include <stdlib.h> |
| 3 |
#include <stdbool.h> |
| 4 |
#include <string.h> |
| 5 |
#include <ctype.h> |
| 6 |
|
| 7 |
#include "inifile.h" |
| 8 |
|
| 9 |
char* inifile_cleanstr(char* str) |
| 10 |
{ |
| 11 |
int i; |
| 12 |
for (i = strlen(str) - 1; i >= 0; i --) |
| 13 |
if (!isspace(str[i])) |
| 14 |
{ |
| 15 |
str[i + 1] = '\0'; |
| 16 |
break; |
| 17 |
} |
| 18 |
|
| 19 |
while (isspace(*str)) |
| 20 |
str++; |
| 21 |
|
| 22 |
return str; |
| 23 |
} |
| 24 |
|
| 25 |
int64_t inifile_parseint(const char* str, bool issigned) |
| 26 |
{ |
| 27 |
int64_t ret = 0; |
| 28 |
bool neg = false; |
| 29 |
if (str[0] == '0' && str[1] == 'x') |
| 30 |
{ |
| 31 |
int i; |
| 32 |
if (str[2] == '\0') |
| 33 |
return 0x100000000LL; |
| 34 |
|
| 35 |
for (i = 0, str += 2; *str; i++, str++) |
| 36 |
{ |
| 37 |
if (i == 8) |
| 38 |
return 0x100000000LL; |
| 39 |
|
| 40 |
ret <<= 4; |
| 41 |
if (*str >= '0' && *str <= '9') |
| 42 |
ret |= *str - '0'; |
| 43 |
else if (*str >= 'a' && *str <= 'f') |
| 44 |
ret |= *str - 'a' + 10; |
| 45 |
else if (*str >= 'A' && *str <= 'F') |
| 46 |
ret |= *str - 'A' + 10; |
| 47 |
else |
| 48 |
return 0x100000000LL; |
| 49 |
} |
| 50 |
return ret; |
| 51 |
} |
| 52 |
else if ((*str >= '0' && *str <= '9') || (neg = (*str == '-'))) |
| 53 |
{ |
| 54 |
int i; |
| 55 |
if (neg) |
| 56 |
str++; |
| 57 |
for (i = 0; *str; i++, str++) |
| 58 |
{ |
| 59 |
if (i == 10) |
| 60 |
return 0x100000000LL; |
| 61 |
else if (i == 9 && !issigned && (ret > 429496729LL || (ret == 429496729LL && *str > '5'))) |
| 62 |
return 0x100000000LL; |
| 63 |
else if (i == 9 && issigned && (ret > 214748364LL || (ret == 214748364LL && *str > (neg ? '8' : '7')))) |
| 64 |
return 0x100000000LL; |
| 65 |
|
| 66 |
ret *= 10; |
| 67 |
if (*str >= '0' && *str <= '9') |
| 68 |
ret += *str - '0'; |
| 69 |
else |
| 70 |
return 0x100000000LL; |
| 71 |
} |
| 72 |
if (neg) |
| 73 |
ret *= -1; |
| 74 |
return ret; |
| 75 |
} |
| 76 |
else |
| 77 |
return 0x100000000LL; |
| 78 |
} |
| 79 |
|
| 80 |
bool inifile_read(const char* filename, inifile_callback callback) |
| 81 |
{ |
| 82 |
FILE* fp = fopen(filename, "r"); |
| 83 |
char* inisection = ""; |
| 84 |
char readbuf[4096] = ""; |
| 85 |
char* readptr; |
| 86 |
bool success = true; |
| 87 |
bool newsection = false; |
| 88 |
|
| 89 |
if (!fp) |
| 90 |
return inifile_cantread; |
| 91 |
|
| 92 |
while ((readptr = fgets(readbuf, sizeof(readbuf), fp))) // Loop through each line. |
| 93 |
{ |
| 94 |
while (isspace(readptr[0])) // Skip whitespace. |
| 95 |
readptr++; |
| 96 |
|
| 97 |
if (readptr[0] == '\0' || readptr[0] == '#' || readptr[0] == '!') // Skip empty lines and comments. |
| 98 |
continue; |
| 99 |
else if (readptr[0] == '[' && readptr[1] != ']') // It's a section header. |
| 100 |
{ |
| 101 |
int i; |
| 102 |
for (i = 2; readptr[i]; i ++) // Look for the ] |
| 103 |
if (readptr[i] == ']') |
| 104 |
break; |
| 105 |
|
| 106 |
if (readptr[i]) // Replace with a null or crash with error. |
| 107 |
readptr[i] = '\0'; |
| 108 |
else |
| 109 |
{ |
| 110 |
success = false; |
| 111 |
break; |
| 112 |
} |
| 113 |
|
| 114 |
if (inisection[0]) |
| 115 |
free(inisection); |
| 116 |
inisection = strdup(readptr + 1); // Skip the first [ |
| 117 |
newsection = true; |
| 118 |
} |
| 119 |
else // It's a value. |
| 120 |
{ |
| 121 |
int i; |
| 122 |
int equals = 0; |
| 123 |
for (i = 0; readptr[i]; i ++) // Find the = |
| 124 |
if (readptr[i] == '=') |
| 125 |
equals = i; |
| 126 |
|
| 127 |
if (readptr[i - 1] == '\n') |
| 128 |
readptr[i - 1] = '\0'; // Remove the trailing newline. |
| 129 |
|
| 130 |
if (equals) |
| 131 |
{ |
| 132 |
readptr[equals] = '\0'; |
| 133 |
if (!callback(inisection, newsection, readptr, readptr + equals + 1)) // If the callback is false, exit. |
| 134 |
break; |
| 135 |
newsection = false; |
| 136 |
} |
| 137 |
else // If there's no equals, crash with error. |
| 138 |
{ |
| 139 |
success = false; |
| 140 |
break; |
| 141 |
} |
| 142 |
} |
| 143 |
} |
| 144 |
|
| 145 |
if (inisection[0]) |
| 146 |
free(inisection); |
| 147 |
|
| 148 |
fclose(fp); |
| 149 |
return success; |
| 150 |
} |
