115 lines
1.5 KiB
Factor
115 lines
1.5 KiB
Factor
IN: temporary
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USING: errors kernel math parser test ;
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: parse-number ( str -- num )
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#! Convert a string to a number; return f on error.
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[ string>number ] [ [ drop f ] when ] catch ;
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[ f ]
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[ f parse-number ]
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unit-test
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[ f ]
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[ "12345abcdef" parse-number ]
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unit-test
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[ t ]
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[ "-12" parse-number 0 < ]
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unit-test
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[ f ]
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[ "--12" parse-number ]
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unit-test
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[ f ]
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[ "-" parse-number ]
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unit-test
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[ f ]
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[ "e" parse-number ]
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unit-test
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[ "100.0" ]
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[ "1.0e2" parse-number number>string ]
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unit-test
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[ "-100.0" ]
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[ "-1.0e2" parse-number number>string ]
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unit-test
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[ "0.01" ]
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[ "1.0e-2" parse-number number>string ]
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unit-test
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[ "-0.01" ]
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[ "-1.0e-2" parse-number number>string ]
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unit-test
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[ f ]
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[ "-1e-2e4" parse-number ]
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unit-test
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[ "3.14" ]
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[ "3.14" parse-number number>string ]
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unit-test
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[ f ]
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[ "." parse-number ]
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unit-test
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[ f ]
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[ ".e" parse-number ]
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unit-test
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[ "101.0" ]
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[ "1.01e2" parse-number number>string ]
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unit-test
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[ "-101.0" ]
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[ "-1.01e2" parse-number number>string ]
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unit-test
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[ "1.01" ]
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[ "101.0e-2" parse-number number>string ]
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unit-test
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[ "-1.01" ]
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[ "-101.0e-2" parse-number number>string ]
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unit-test
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[ 5 ]
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[ "10/2" parse-number ]
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unit-test
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[ -5 ]
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[ "-10/2" parse-number ]
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unit-test
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[ -5 ]
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[ "10/-2" parse-number ]
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unit-test
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[ 5 ]
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[ "-10/-2" parse-number ]
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unit-test
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[ f ]
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[ "10.0/2" parse-number ]
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unit-test
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[ f ]
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[ "1e1/2" parse-number ]
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unit-test
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[ f ]
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[ "e/2" parse-number ]
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unit-test
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[ "33/100" ]
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[ "66/200" parse-number number>string ]
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unit-test
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[ "12" bin> ] unit-test-fails
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[ "fdsf" bin> ] unit-test-fails
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[ 3 ] [ "11" bin> ] unit-test
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