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  1. //
  2. // MMScanner.h
  3. // MMMarkdown
  4. //
  5. // Copyright (c) 2012 Matt Diephouse.
  6. //
  7. // Permission is hereby granted, free of charge, to any person obtaining a copy
  8. // of this software and associated documentation files (the "Software"), to deal
  9. // in the Software without restriction, including without limitation the rights
  10. // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11. // copies of the Software, and to permit persons to whom the Software is
  12. // furnished to do so, subject to the following conditions:
  13. //
  14. // The above copyright notice and this permission notice shall be included in
  15. // all copies or substantial portions of the Software.
  16. //
  17. // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18. // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19. // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  20. // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21. // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22. // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  23. // THE SOFTWARE.
  24. //
  25. #import <Foundation/Foundation.h>
  26. @interface MMScanner : NSObject
  27. // Constant info
  28. @property (strong, nonatomic, readonly) NSString *string;
  29. @property (copy, nonatomic, readonly) NSArray *lineRanges;
  30. // Changing
  31. @property (assign, nonatomic, readonly) NSUInteger startLocation;
  32. @property (assign, nonatomic, readonly) NSRange currentRange;
  33. // Settable
  34. @property (assign, nonatomic) NSUInteger location;
  35. + (id)scannerWithString:(NSString *)aString;
  36. - (id)initWithString:(NSString *)aString;
  37. + (id)scannerWithString:(NSString *)aString lineRanges:(NSArray *)theLineRanges;
  38. - (id)initWithString:(NSString *)aString lineRanges:(NSArray *)theLineRanges;
  39. - (void)beginTransaction;
  40. - (void)commitTransaction:(BOOL)shouldSave;
  41. - (BOOL)atBeginningOfLine;
  42. - (BOOL)atEndOfLine;
  43. - (BOOL)atEndOfString;
  44. - (unichar)previousCharacter;
  45. - (unichar)nextCharacter;
  46. - (NSString *)previousWord;
  47. - (NSString *)nextWord;
  48. - (NSString *)previousWordWithCharactersFromSet:(NSCharacterSet *)set;
  49. - (NSString *)nextWordWithCharactersFromSet:(NSCharacterSet *)set;
  50. - (void)advance;
  51. - (void)advanceToNextLine;
  52. - (BOOL)matchString:(NSString *)string;
  53. - (NSUInteger)skipCharactersFromSet:(NSCharacterSet *)aSet;
  54. - (NSUInteger)skipCharactersFromSet:(NSCharacterSet *)aSet max:(NSUInteger)maxToSkip;
  55. - (NSUInteger)skipEmptyLines;
  56. - (NSUInteger)skipIndentationUpTo:(NSUInteger)maxSpacesToSkip;
  57. - (NSUInteger)skipNestedBracketsWithDelimiter:(unichar)delimiter;
  58. - (NSUInteger)skipToEndOfLine;
  59. - (NSUInteger)skipToLastCharacterOfLine;
  60. - (NSUInteger)skipWhitespace;
  61. - (NSUInteger)skipWhitespaceAndNewlines;
  62. @end