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  1. <?php
  2. function do_replace($string) {
  3.     $regex = '/^(\((?:<([a-z])>)?(\d{0,3}|[a-z]{1,3})(?:<\/\2>)?(\.)?\)|\[(?:<([a-z])>)?(\d{0,3}|[a-z]{1,3})(?:<\/\2>)?(\.)?\])\s*(.*)/i';
  4.     $result = preg_match($regex, $string);
  5. 	if($result) {
  6. 		return preg_replace($regex, '%%$1|$8', $string);
  7. 	} else {
  8. 		$regex = '/^(\d{0,3}|[a-z]{1,3})\.\s*(.+)$/i';
  9. 		$result = preg_match($regex, $string);
  10. 		if($result) {
  11. 			return preg_replace($regex, '%%$1.|$2', $string);
  12. 		} else {
  13. 			return $string;
  14. 		}
  15. 	}
  16. }
  17. $strings = array(
  18. 	'(1)blahblah',
  19. 	'(<i>iv</i>.) blahblah',
  20. 	'[b] &nbsp;some stuff',
  21. 	'25. blahblah',
  22. 	'A. some other stuff. one',
  23. 	'blah. some other stuff',
  24. 	'text (1) text',
  25. 	'2008. blah',
  26. 	'[123) <-- mismatch'
  27. );
  28. foreach($strings as $string) echo do_replace($string) . PHP_EOL;
  29. ?>
Success #stdin #stdout 0.02s 13112KB
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stdin
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Standard input is empty
stdout
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%%(1)|blahblah
%%(<i>iv</i>.)|blahblah
%%[b]|&nbsp;some stuff
%%25.|blahblah
%%A.|some other stuff. one
blah. some other stuff
text (1) text
2008. blah
[123) <-- mismatch
https://ideone.com/4GyXR
language:
PHP (php 7.3.5)
created:
11 years ago
visibility:
public

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