mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-06-29 16:09:23 +02:00
37 lines
740 B
PHP
37 lines
740 B
PHP
<?php
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require '../Parser.php' ;
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class EqualRepeat extends Packrat {
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/* Any number of a followed by the same number of b and the same number of c characters
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* aabbcc - good
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* aaabbbccc - good
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* aabbc - bad
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* aabbacc - bad
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*/
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/*!* Grammar1
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A: "a" A? "b"
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B: "b" B? "c"
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T: !"b"
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X: &(A !"b") "a"+ B !("a" | "b" | "c")
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*/
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}
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function match( $str ) {
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$p = new EqualRepeat( $str ) ;
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$r = $p->match_X() ;
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print "$str\n" ;
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print $r ? print_r( $r, true ) : 'No Match' ;
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print "\n\n" ;
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}
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match( 'aabbcc' ) ; // Should match
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match( 'aaabbbccc' ) ; // Should match
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match( 'aabbbccc' ) ; // Should not match
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match( 'aaabbccc' ) ; // Should not match
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match( 'aaabbbcc' ) ; // Should not match
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match( 'aaabbbcccc' ) ; // Should not match
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