NSString+PinYin4Cocoa.m 5.1 KB

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  1. //
  2. // NSString+PinYin4Cocoa.m
  3. // PinYin4Cocoa
  4. //
  5. // Created by kimziv on 13-9-15.
  6. // Copyright (c) 2013年 kimziv. All rights reserved.
  7. //
  8. #import "NSString+PinYin4Cocoa.h"
  9. @implementation NSString (PinYin4Cocoa)
  10. - (NSInteger)indexOfString:(NSString *)s {
  11. NSAssert3((s!=nil), @"Error, s is a nil string, %s, %s, %d", __FILE__, __FUNCTION__, __LINE__);
  12. if ([s length] == 0) {
  13. return 0;
  14. }
  15. NSRange range = [self rangeOfString:s];
  16. return range.location == NSNotFound ? -1 : (int) range.location;
  17. }
  18. - (NSInteger)indexOfString:(NSString *)s fromIndex:(int)index {
  19. NSAssert3((s!=nil), @"Error, s is a nil string, %s, %s, %d", __FILE__, __FUNCTION__, __LINE__);
  20. if ([s length] == 0) {
  21. return 0;
  22. }
  23. NSRange searchRange = NSMakeRange((NSUInteger) index,
  24. [self length] - (NSUInteger) index);
  25. NSRange range = [self rangeOfString:s
  26. options:NSLiteralSearch
  27. range:searchRange];
  28. return range.location == NSNotFound ? -1 : (int) range.location;
  29. }
  30. - (NSInteger)indexOf:(int)ch {
  31. // unichar c = (unichar) ch;
  32. // for(int i=0;i<self.length;i++)
  33. // if(c == [self characterAtIndex:i])
  34. // return i;
  35. // return -1;
  36. return [self indexOf:ch fromIndex:0];
  37. }
  38. - (NSInteger)indexOf:(int)ch fromIndex:(int)index {
  39. unichar c = (unichar) ch;
  40. NSString *s = [NSString stringWithCharacters:&c length:1];
  41. return [self indexOfString:s fromIndex:(int)index];
  42. }
  43. + (NSString *)valueOfChar:(unichar)value {
  44. return [NSString stringWithFormat:@"%C", value];
  45. }
  46. -(NSString *) stringByReplacingRegexPattern:(NSString *)regex withString:(NSString *) replacement caseInsensitive:(BOOL)ignoreCase {
  47. return [self stringByReplacingRegexPattern:regex withString:replacement caseInsensitive:ignoreCase treatAsOneLine:NO];
  48. }
  49. -(NSString *) stringByReplacingRegexPattern:(NSString *)regex withString:(NSString *) replacement caseInsensitive:(BOOL) ignoreCase treatAsOneLine:(BOOL) assumeMultiLine {
  50. NSUInteger options=0;
  51. if (ignoreCase) {
  52. options = options | NSRegularExpressionCaseInsensitive;
  53. }
  54. if (assumeMultiLine) {
  55. options = options | NSRegularExpressionDotMatchesLineSeparators;
  56. }
  57. NSError *error=nil;
  58. NSRegularExpression *pattern = [NSRegularExpression regularExpressionWithPattern:regex options:options error:&error];
  59. if (error) {
  60. NSLog(@"Error creating Regex: %@",[error description]);
  61. return nil;
  62. }
  63. NSString *retVal= [pattern stringByReplacingMatchesInString:self options:0 range:NSMakeRange(0, [self length]) withTemplate:replacement];
  64. return retVal;
  65. }
  66. -(NSString *) stringByReplacingRegexPattern:(NSString *)regex withString:(NSString *) replacement {
  67. return [self stringByReplacingRegexPattern:regex withString:replacement caseInsensitive:NO treatAsOneLine:NO];
  68. }
  69. -(NSArray *) stringsByExtractingGroupsUsingRegexPattern:(NSString *)regex caseInsensitive:(BOOL) ignoreCase treatAsOneLine:(BOOL) assumeMultiLine {
  70. NSUInteger options=0;
  71. if (ignoreCase) {
  72. options = options | NSRegularExpressionCaseInsensitive;
  73. }
  74. if (assumeMultiLine) {
  75. options = options | NSRegularExpressionDotMatchesLineSeparators;
  76. }
  77. NSError *error=nil;
  78. NSRegularExpression *pattern = [NSRegularExpression regularExpressionWithPattern:regex options:options error:&error];
  79. if (error) {
  80. NSLog(@"Error creating Regex: %@",[error description]);
  81. return nil;
  82. }
  83. __block NSMutableArray *retVal = [NSMutableArray array];
  84. [pattern enumerateMatchesInString:self options:0 range:NSMakeRange(0, [self length]) usingBlock:^(NSTextCheckingResult *result, NSMatchingFlags flags, BOOL *stop) {
  85. //Note, we only want to return the things in parens, so we're skipping index 0 intentionally
  86. for (int i=1; i<[result numberOfRanges]; i++) {
  87. NSString *matchedString=[self substringWithRange:[result rangeAtIndex:i]];
  88. [retVal addObject:matchedString];
  89. }
  90. }];
  91. return retVal;
  92. }
  93. -(NSArray *) stringsByExtractingGroupsUsingRegexPattern:(NSString *)regex {
  94. return [self stringsByExtractingGroupsUsingRegexPattern:regex caseInsensitive:NO treatAsOneLine:NO];
  95. }
  96. -(BOOL) matchesPatternRegexPattern:(NSString *)regex caseInsensitive:(BOOL) ignoreCase treatAsOneLine:(BOOL) assumeMultiLine {
  97. NSUInteger options=0;
  98. if (ignoreCase) {
  99. options = options | NSRegularExpressionCaseInsensitive;
  100. }
  101. if (assumeMultiLine) {
  102. options = options | NSRegularExpressionDotMatchesLineSeparators;
  103. }
  104. NSError *error=nil;
  105. NSRegularExpression *pattern = [NSRegularExpression regularExpressionWithPattern:regex options:options error:&error];
  106. if (error) {
  107. NSLog(@"Error creating Regex: %@",[error description]);
  108. return NO; //Can't possibly match an invalid Regex
  109. }
  110. return ([pattern numberOfMatchesInString:self options:0 range:NSMakeRange(0, [self length])] > 0);
  111. }
  112. -(BOOL) matchesPatternRegexPattern:(NSString *)regex {
  113. return [self matchesPatternRegexPattern:regex caseInsensitive:NO treatAsOneLine:NO];
  114. }
  115. @end