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  1. //
  2. // MMMarkdown.m
  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 "MMMarkdown.h"
  26. #import "MMParser.h"
  27. #import "MMGenerator.h"
  28. @implementation MMMarkdown
  29. #pragma mark - Public Methods
  30. + (NSString *)HTMLStringWithMarkdown:(NSString *)string error:(__autoreleasing NSError **)error
  31. {
  32. return [self HTMLStringWithMarkdown:string extensions:MMMarkdownExtensionsNone fromSelector:_cmd error:error];
  33. }
  34. + (NSString *)HTMLStringWithMarkdown:(NSString *)string extensions:(MMMarkdownExtensions)extensions error:(NSError *__autoreleasing *)error
  35. {
  36. return [self HTMLStringWithMarkdown:string extensions:extensions fromSelector:_cmd error:error];
  37. }
  38. #pragma mark - Private Methods
  39. + (NSString *)HTMLStringWithMarkdown:(NSString *)string
  40. extensions:(MMMarkdownExtensions)extensions
  41. fromSelector:(SEL)selector
  42. error:(__autoreleasing NSError **)error
  43. {
  44. if (string == nil)
  45. {
  46. NSString *reason = [NSString stringWithFormat:@"[%@ %@]: nil argument for markdown",
  47. NSStringFromClass(self.class), NSStringFromSelector(selector)];
  48. @throw [NSException exceptionWithName:NSInvalidArgumentException reason:reason userInfo:nil];
  49. }
  50. if (string.length == 0)
  51. return @"";
  52. MMParser *parser = [[MMParser alloc] initWithExtensions:extensions];
  53. MMGenerator *generator = [MMGenerator new];
  54. MMDocument *document = [parser parseMarkdown:string error:error];
  55. return [generator generateHTML:document];
  56. }
  57. @end