51 lines
715 B
Perl
51 lines
715 B
Perl
#!/usr/bin/perl
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$integer = '[+-]?[0-9]+';
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$real = '[+-]?[0-9]+\.[0-9]+';
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$RANGE = '(\.\.)(\.)?';
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$PLUMIN = q(\'\+\-\');
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$FLOAT = "(($integer)|($real))([eE]($integer))?";
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$EXTENSION = '<|>|~';
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$boundary = "($EXTENSION)?$FLOAT";
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$deviation = $FLOAT;
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$rule_1 = $boundary . $PLUMIN . $deviation;
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$rule_2 = $boundary . $RANGE . $boundary;
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$rule_3 = $boundary . $RANGE;
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$rule_4 = $RANGE . $boundary;
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$rule_5 = $boundary;
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print "$rule_5\n";
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while (<>)
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{
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# s/ +//g;
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if (/^($rule_1)$/)
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{
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print;
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}
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elsif (/^($rule_2)$/)
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{
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print;
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}
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elsif (/^($rule_3)$/)
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{
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print;
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}
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elsif (/^($rule_4)$/)
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{
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print;
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}
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elsif (/^($rule_5)$/)
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{
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print;
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}
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else
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{
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print STDERR "error in $_\n";
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}
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}
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