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#include <stdio.h> |
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#include <stdlib.h> |
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#include <stdbool.h> |
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#include <string.h> |
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#include <ctype.h> |
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|
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#include "inifile.h" |
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|
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char* inifile_cleanstr(char* str) |
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{ |
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int i; |
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for (i = strlen(str) - 1; i >= 0; i --) |
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if (isspace(str[i])) |
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str[i] = '\0'; |
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else |
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break; |
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|
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while (isspace(*str)) |
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str++; |
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|
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return str; |
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} |
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|
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int64_t inifile_parseint(const char* str, bool issigned) |
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{ |
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int64_t ret = 0; |
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bool neg = false; |
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if (str[0] == '0' && str[1] == 'x') |
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{ |
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int i; |
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if (str[2] == '\0') |
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return 0x100000000LL; |
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|
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for (i = 0, str += 2; *str; i++, str++) |
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{ |
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if (i == 8) |
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return 0x100000000LL; |
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|
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ret <<= 4; |
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if (*str >= '0' && *str <= '9') |
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ret |= *str - '0'; |
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else if (*str >= 'a' && *str <= 'f') |
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ret |= *str - 'a' + 10; |
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else if (*str >= 'A' && *str <= 'F') |
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ret |= *str - 'A' + 10; |
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else |
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return 0x100000000LL; |
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} |
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return ret; |
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} |
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else if ((*str >= '0' && *str <= '9') || (neg = (*str == '-'))) |
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{ |
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int i; |
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if (neg) |
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str++; |
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for (i = 0; *str; i++, str++) |
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{ |
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if (i == 10) |
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return 0x100000000LL; |
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else if (i == 9 && !issigned && (ret > 429496729LL || (ret == 429496729LL && *str > '5'))) |
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return 0x100000000LL; |
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else if (i == 9 && issigned && (ret > 214748364LL || (ret == 214748364LL && *str > (neg ? '8' : '7')))) |
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return 0x100000000LL; |
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|
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ret *= 10; |
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if (*str >= '0' && *str <= '9') |
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ret += *str - '0'; |
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else |
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return 0x100000000LL; |
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} |
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if (neg) |
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ret *= -1; |
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return ret; |
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} |
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else |
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return 0x100000000LL; |
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} |
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|
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bool inifile_read(const char* filename, inifile_callback callback) |
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{ |
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FILE* fp = fopen(filename, "r"); |
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char* inisection = ""; |
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char readbuf[4096] = ""; |
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char* readptr; |
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bool success = true; |
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bool newsection = false; |
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|
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if (!fp) |
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return inifile_cantread; |
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|
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while ((readptr = fgets(readbuf, sizeof(readbuf), fp))) // Loop through each line. |
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{ |
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while (isspace(readptr[0])) // Skip whitespace. |
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readptr++; |
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|
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if (readptr[0] == '\0' || readptr[0] == '#' || readptr[0] == '!') // Skip empty lines and comments. |
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continue; |
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else if (readptr[0] == '[' && readptr[1] != ']') // It's a section header. |
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{ |
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int i; |
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for (i = 2; readptr[i]; i ++) // Look for the ] |
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if (readptr[i] == ']') |
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break; |
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|
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if (readptr[i]) // Replace with a null or crash with error. |
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readptr[i] = '\0'; |
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else |
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{ |
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success = false; |
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break; |
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} |
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|
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if (inisection[0]) |
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free(inisection); |
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inisection = strdup(readptr + 1); // Skip the first [ |
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newsection = true; |
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} |
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else // It's a value. |
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{ |
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int i; |
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int equals = 0; |
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for (i = 0; readptr[i]; i ++) // Find the = |
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if (readptr[i] == '=') |
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equals = i; |
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|
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if (readptr[i - 1] == '\n') |
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readptr[i - 1] = '\0'; // Remove the trailing newline. |
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|
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if (equals) |
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{ |
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readptr[equals] = '\0'; |
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if (!callback(inisection, newsection, readptr, readptr + equals + 1)) // If the callback is false, exit. |
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break; |
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newsection = false; |
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} |
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else // If there's no equals, crash with error. |
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{ |
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success = false; |
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break; |
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} |
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} |
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} |
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|
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if (inisection[0]) |
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free(inisection); |
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|
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fclose(fp); |
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return success; |
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} |
