project_files/HedgewarsMobile/Classes/IniParser.m
changeset 11572 836af7d4af69
child 11573 e9ee87b28e17
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/project_files/HedgewarsMobile/Classes/IniParser.m	Tue Feb 23 00:29:46 2016 +0100
@@ -0,0 +1,117 @@
+/*
+ * Hedgewars-iOS, a Hedgewars port for iOS devices
+ * Copyright (c) 2015-2016 Anton Malmygin <antonc27@mail.ru>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA.
+ */
+
+#import "IniParser.h"
+
+#define COMMENTS_START_CHAR ';'
+#define  SECTION_START_CHAR '['
+
+@interface IniParser ()
+@property (nonatomic, retain) NSString *iniFilePath;
+
+@property (nonatomic, retain) NSMutableArray *mutableSections;
+@property (nonatomic, retain) NSMutableDictionary *currentSection;
+@end
+
+@implementation IniParser
+
+#pragma mark - Initilisation
+
+- (instancetype)initWithIniFilePath:(NSString *)iniFilePath {
+    self = [super init];
+    if (self) {
+        _iniFilePath = [iniFilePath copy];
+    }
+    return self;
+}
+
+#pragma mark - Parse sections
+
+- (NSArray *)newParsedSections {
+    NSString *iniFileContents = [NSString stringWithContentsOfFile:self.iniFilePath encoding:NSUTF8StringEncoding error:nil];
+    
+    [self prepareForParsing];
+    [iniFileContents enumerateLinesUsingBlock:^(NSString *line, BOOL *stop) {
+        if (![self isNeedToSkipLine:line]) {
+            [self parseLine:line];
+        }
+    }];
+    
+    return [self copyParsedSections];
+}
+
+- (void)prepareForParsing {
+    self.mutableSections = [[NSMutableArray alloc] init];
+    self.currentSection = nil;
+}
+
+- (BOOL)isNeedToSkipLine:(NSString *)line {
+    return ([line length] < 1 || [self isLineAComment:line]);
+}
+
+- (BOOL)isLineAComment:(NSString *)line {
+    return ([line characterAtIndex:0] == COMMENTS_START_CHAR);
+}
+
+- (void)parseLine:(NSString *)line {
+    if ([self isLineASectionStart:line]) {
+        [self addPreviousSectionToSectionsIfNecessary];
+        [self createCurrentSection];
+    } else {
+        [self parseAssignmentForCurrentSectionInLine:line];
+    }
+}
+
+- (BOOL)isLineASectionStart:(NSString *)line {
+    return ([line characterAtIndex:0] == SECTION_START_CHAR);
+}
+
+- (void)addPreviousSectionToSectionsIfNecessary {
+    if (self.currentSection != nil) {
+        [self.mutableSections addObject:self.currentSection];
+        [self.currentSection release];
+    }
+}
+
+- (void)createCurrentSection {
+    self.currentSection = [[NSMutableDictionary alloc] init];
+}
+
+- (void)parseAssignmentForCurrentSectionInLine:(NSString *)line {
+    NSArray *components = [line componentsSeparatedByString:@"="];
+    if (components.count > 1) {
+        NSString *key = components[0];
+        NSString *value = components[1];
+        [self.currentSection setObject:value forKey:key];
+    }
+}
+
+- (NSArray *)copyParsedSections {
+    return [self.mutableSections copy];
+}
+
+#pragma mark - Dealloc
+
+- (void)dealloc {
+    [_iniFilePath release];
+    [_mutableSections release];
+    [_currentSection release];
+    [super dealloc];
+}
+
+@end