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  1. #include <algorithm>
  2. #include <iostream>
  3. #include <regex>
  4. #include <string>
  5. #include <utility>
  6. #include <vector>
  7.  
  8. using namespace std;
  9.  
  10. enum POSES // Deliminators
  11. {
  12. 	EQUALS,
  13. 	OPEN,
  14. 	CLOSE,
  15. 	SPACE,
  16. 	EOL,
  17. 	RETURN,
  18. 	TAB,
  19. 	COMMENT,
  20. 	POSES_SIZE
  21. };
  22.  
  23. int main() {
  24. 	const auto input = "#Comment\n\nshow_position = { x=-9 y =78 }"s;
  25. 	vector<pair<POSES, string>> tokens;
  26. 	const regex re{ "\\s*(?:\n|(#[^\n]*)|(\\{)|(\\})|(=)|([^{}= \t\r\n]+))" };
  27.  
  28. 	for_each(sregex_iterator(cbegin(input), cend(input), re), sregex_iterator(), [&](const auto& i) {
  29. 		if (i[1].length() > 0U) {
  30. 			tokens.emplace_back(COMMENT, i[1]);
  31. 		} else if (i[2].length() > 0U) {
  32. 			tokens.emplace_back(OPEN, "{"s);
  33. 		} else if (i[3].length() > 0U) {
  34. 			tokens.emplace_back(CLOSE, "}"s);
  35. 		} else if (i[4].length() > 0U) {
  36. 			tokens.emplace_back(EQUALS, "="s);
  37. 		} else if (i[5].length() > 0U) {
  38. 			tokens.emplace_back(POSES_SIZE, i[5]);
  39. 		}
  40. 	});
  41.  
  42. 	for (const auto& i : tokens) {
  43. 		switch (i.first) {
  44. 		case EQUALS:
  45. 			cout << "EQUALS:     =\n";
  46. 			break;
  47. 		case OPEN:
  48. 			cout << "OPEN:       {\n";
  49. 			break;
  50. 		case CLOSE:
  51. 			cout << "CLOSE:      }\n";
  52. 			break;
  53. 		case COMMENT:
  54. 			cout << "COMMENT:    " << i.second << endl;
  55. 			break;
  56. 		case POSES_SIZE:
  57. 			cout << "POSES_SIZE: " << i.second << endl;
  58. 		}
  59. 	}
  60. }
Success #stdin #stdout 0s 3500KB
comments (?)
stdin
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Standard input is empty
stdout
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COMMENT:    #Comment
POSES_SIZE: show_position
EQUALS:     =
OPEN:       {
POSES_SIZE: x
EQUALS:     =
POSES_SIZE: -9
POSES_SIZE: y
EQUALS:     =
POSES_SIZE: 78
CLOSE:      }
https://ideone.com/xgGUNo
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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