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301 lines
7.9 KiB
301 lines
7.9 KiB
/* inih -- simple .INI file parser |
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inih is released under the New BSD license (see LICENSE.txt). Go to the project |
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home page for more info: |
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http://code.google.com/p/inih/ |
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*/ |
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#include <stdio.h> |
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#include <ctype.h> |
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#include <string.h> |
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#include "ini.h" |
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#if !INI_USE_STACK |
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#include <stdlib.h> |
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#endif |
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#define MAX_SECTION 50 |
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#define MAX_NAME 50 |
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/* Strip whitespace chars off end of given string, in place. Return s. */ |
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static char* rstrip(char* s) |
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{ |
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char* p = s + strlen(s); |
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while (p > s && isspace((unsigned char)(*--p))) |
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*p = '\0'; |
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return s; |
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} |
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/* Return pointer to first non-whitespace char in given string. */ |
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static char* lskip(const char* s) |
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{ |
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while (*s && isspace((unsigned char)(*s))) |
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s++; |
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return (char*)s; |
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} |
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/* Return pointer to first char c or ';' comment in given string, or pointer to |
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null at end of string if neither found. ';' must be prefixed by a whitespace |
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character to register as a comment. */ |
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static char* find_char_or_comment(const char* s, char c) |
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{ |
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int was_whitespace = 0; |
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while (*s && *s != c && !(was_whitespace && *s == ';')) { |
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was_whitespace = isspace((unsigned char)(*s)); |
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s++; |
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} |
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return (char*)s; |
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} |
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/* Version of strncpy that ensures dest (size bytes) is null-terminated. */ |
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static char* strncpy0(char* dest, const char* src, size_t size) |
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{ |
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strncpy(dest, src, size); |
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dest[size - 1] = '\0'; |
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return dest; |
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} |
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/* See documentation in header file. */ |
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int ini_parse_str(char* ini_string, |
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int (*handler)(void*, const char*, const char*, |
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const char*), |
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void* user) |
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{ |
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/* Uses a fair bit of stack (use heap instead if you need to) */ |
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#if INI_USE_STACK |
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char line[INI_MAX_LINE]; |
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#else |
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char* line; |
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#endif |
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char section[MAX_SECTION] = ""; |
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char prev_name[MAX_NAME] = ""; |
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char* start; |
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char* end; |
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char* name; |
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char* value; |
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int lineno = 0; |
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int error = 0; |
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#if !INI_USE_STACK |
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line = (char*)malloc(INI_MAX_LINE); |
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if (!line) { |
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return -2; |
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} |
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#endif |
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int i=1; |
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char *ptr; |
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// initialisieren und ersten Abschnitt erstellen |
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ptr = strtok(ini_string, "\n"); |
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/* Scan through file line by line */ |
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while(ptr != NULL) { |
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sprintf(line, "%s\n",ptr); |
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ptr = strtok(NULL, "\n"); |
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// while (line=gets( ini_string) != NULL) { |
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lineno++; |
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start = line; |
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#if INI_ALLOW_BOM |
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if (lineno == 1 && (unsigned char)start[0] == 0xEF && |
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(unsigned char)start[1] == 0xBB && |
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(unsigned char)start[2] == 0xBF) { |
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start += 3; |
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} |
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#endif |
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start = lskip(rstrip(start)); |
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if (*start == ';' || *start == '#') { |
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/* Per Python ConfigParser, allow '#' comments at start of line */ |
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} |
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#if INI_ALLOW_MULTILINE |
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else if (*prev_name && *start && start > line) { |
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/* Non-black line with leading whitespace, treat as continuation |
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of previous name's value (as per Python ConfigParser). */ |
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if (!handler(user, section, prev_name, start) && !error) |
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error = lineno; |
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} |
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#endif |
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else if (*start == '[') { |
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/* A "[section]" line */ |
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end = find_char_or_comment(start + 1, ']'); |
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if (*end == ']') { |
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*end = '\0'; |
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strncpy0(section, start + 1, sizeof(section)); |
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*prev_name = '\0'; |
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} |
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else if (!error) { |
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/* No ']' found on section line */ |
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error = lineno; |
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} |
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} |
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else if (*start && *start != ';') { |
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/* Not a comment, must be a name[=:]value pair */ |
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end = find_char_or_comment(start, '='); |
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if (*end != '=') { |
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end = find_char_or_comment(start, ':'); |
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} |
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if (*end == '=' || *end == ':') { |
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*end = '\0'; |
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name = rstrip(start); |
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value = lskip(end + 1); |
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end = find_char_or_comment(value, '\0'); |
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if (*end == ';') |
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*end = '\0'; |
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rstrip(value); |
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/* Valid name[=:]value pair found, call handler */ |
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strncpy0(prev_name, name, sizeof(prev_name)); |
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if (!handler(user, section, name, value) && !error) |
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error = lineno; |
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} |
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else if (!error) { |
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/* No '=' or ':' found on name[=:]value line */ |
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error = lineno; |
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} |
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} |
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} |
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#if !INI_USE_STACK |
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free(line); |
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#endif |
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return error; |
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} |
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/* See documentation in header file. */ |
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int ini_parse_file(FILE* file, |
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int (*handler)(void*, const char*, const char*, |
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const char*), |
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void* user) |
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{ |
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/* Uses a fair bit of stack (use heap instead if you need to) */ |
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#if INI_USE_STACK |
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char line[INI_MAX_LINE]; |
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#else |
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char* line; |
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#endif |
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char section[MAX_SECTION] = ""; |
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char prev_name[MAX_NAME] = ""; |
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char* start; |
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char* end; |
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char* name; |
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char* value; |
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int lineno = 0; |
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int error = 0; |
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#if !INI_USE_STACK |
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line = (char*)malloc(INI_MAX_LINE); |
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if (!line) { |
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return -2; |
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} |
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#endif |
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/* Scan through file line by line */ |
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while (fgets(line, INI_MAX_LINE, file) != NULL) { |
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lineno++; |
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start = line; |
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#if INI_ALLOW_BOM |
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if (lineno == 1 && (unsigned char)start[0] == 0xEF && |
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(unsigned char)start[1] == 0xBB && |
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(unsigned char)start[2] == 0xBF) { |
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start += 3; |
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} |
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#endif |
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start = lskip(rstrip(start)); |
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if (*start == ';' || *start == '#') { |
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/* Per Python ConfigParser, allow '#' comments at start of line */ |
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} |
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#if INI_ALLOW_MULTILINE |
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else if (*prev_name && *start && start > line) { |
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/* Non-black line with leading whitespace, treat as continuation |
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of previous name's value (as per Python ConfigParser). */ |
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if (!handler(user, section, prev_name, start) && !error) |
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error = lineno; |
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} |
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#endif |
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else if (*start == '[') { |
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/* A "[section]" line */ |
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end = find_char_or_comment(start + 1, ']'); |
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if (*end == ']') { |
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*end = '\0'; |
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strncpy0(section, start + 1, sizeof(section)); |
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*prev_name = '\0'; |
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} |
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else if (!error) { |
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/* No ']' found on section line */ |
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error = lineno; |
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} |
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} |
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else if (*start && *start != ';') { |
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/* Not a comment, must be a name[=:]value pair */ |
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end = find_char_or_comment(start, '='); |
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if (*end != '=') { |
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end = find_char_or_comment(start, ':'); |
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} |
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if (*end == '=' || *end == ':') { |
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*end = '\0'; |
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name = rstrip(start); |
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value = lskip(end + 1); |
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end = find_char_or_comment(value, '\0'); |
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if (*end == ';') |
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*end = '\0'; |
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rstrip(value); |
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/* Valid name[=:]value pair found, call handler */ |
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strncpy0(prev_name, name, sizeof(prev_name)); |
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if (!handler(user, section, name, value) && !error) |
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error = lineno; |
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} |
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else if (!error) { |
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/* No '=' or ':' found on name[=:]value line */ |
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error = lineno; |
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} |
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} |
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} |
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#if !INI_USE_STACK |
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free(line); |
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#endif |
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return error; |
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} |
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/* See documentation in header file. */ |
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int ini_parse(const char* filename, |
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int (*handler)(void*, const char*, const char*, const char*), |
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void* user) |
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{ |
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FILE* file; |
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int error; |
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// file = fopen(filename, "r"); |
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fputs(filename, file); |
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if (!file) |
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return -1; |
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error = ini_parse_file(file, handler, user); |
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fclose(file); |
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return error; |
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}
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