1 /*

     2  * Hedgewars-iOS, a Hedgewars port for iOS devices

     3  * Copyright (c) 2015-2016 Anton Malmygin <antonc27@mail.ru>

     4  *

     5  * This program is free software; you can redistribute it and/or modify

     6  * it under the terms of the GNU General Public License as published by

     7  * the Free Software Foundation; version 2 of the License

     8  *

     9  * This program is distributed in the hope that it will be useful,

    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12  * GNU General Public License for more details.

    13  *

    14  * You should have received a copy of the GNU General Public License

    15  * along with this program; if not, write to the Free Software

    16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA.

    17  */

    18 

    19 #import "IniParser.h"

    20 

    21 #define COMMENTS_START_CHAR ';'

    22 #define  SECTION_START_CHAR '['

    23 

    24 @interface IniParser ()

    25 @property (nonatomic, retain) NSString *iniFilePath;

    26 

    27 @property (nonatomic, retain) NSMutableArray *mutableSections;

    28 @property (nonatomic, retain) NSMutableDictionary *currentSection;

    29 @end

    30 

    31 @implementation IniParser

    32 

    33 #pragma mark - Initilisation

    34 

    35 - (instancetype)initWithIniFilePath:(NSString *)iniFilePath {

    36     self = [super init];

    37     if (self) {

    38         _iniFilePath = [iniFilePath copy];

    39     }

    40     return self;

    41 }

    42 

    43 #pragma mark - Parse sections

    44 

    45 - (NSArray *)newParsedSections {

    46     NSString *iniFileContents = [NSString stringWithContentsOfFile:self.iniFilePath encoding:NSUTF8StringEncoding error:nil];

    47     

    48     [self prepareForParsing];

    49     [iniFileContents enumerateLinesUsingBlock:^(NSString *line, BOOL *stop) {

    50         if (![self isNeedToSkipLine:line]) {

    51             [self parseLine:line];

    52         }

    53     }];

    54     

    55     return [self copyParsedSections];

    56 }

    57 

    58 - (void)prepareForParsing {

    59     self.mutableSections = [[NSMutableArray alloc] init];

    60     self.currentSection = nil;

    61 }

    62 

    63 - (BOOL)isNeedToSkipLine:(NSString *)line {

    64     return ([line length] < 1 || [self isLineAComment:line]);

    65 }

    66 

    67 - (BOOL)isLineAComment:(NSString *)line {

    68     return ([line characterAtIndex:0] == COMMENTS_START_CHAR);

    69 }

    70 

    71 - (void)parseLine:(NSString *)line {

    72     if ([self isLineASectionStart:line]) {

    73         [self addPreviousSectionToSectionsIfNecessary];

    74         [self createCurrentSection];

    75     } else {

    76         [self parseAssignmentForCurrentSectionInLine:line];

    77     }

    78 }

    79 

    80 - (BOOL)isLineASectionStart:(NSString *)line {

    81     return ([line characterAtIndex:0] == SECTION_START_CHAR);

    82 }

    83 

    84 - (void)addPreviousSectionToSectionsIfNecessary {

    85     if (self.currentSection != nil) {

    86         [self.mutableSections addObject:self.currentSection];

    87         [self.currentSection release];

    88     }

    89 }

    90 

    91 - (void)createCurrentSection {

    92     self.currentSection = [[NSMutableDictionary alloc] init];

    93 }

    94 

    95 - (void)parseAssignmentForCurrentSectionInLine:(NSString *)line {

    96     NSArray *components = [line componentsSeparatedByString:@"="];

    97     if (components.count > 1) {

    98         NSString *key = components[0];

    99         NSString *value = components[1];

   100         [self.currentSection setObject:value forKey:key];

   101     }

   102 }

   103 

   104 - (NSArray *)copyParsedSections {

   105     return [self.mutableSections copy];

   106 }

   107 

   108 #pragma mark - Dealloc

   109 

   110 - (void)dealloc {

   111     [_iniFilePath release];

   112     [_mutableSections release];

   113     [_currentSection release];

   114     [super dealloc];

   115 }

   116 

   117 @end