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17 lines
686 B
Plaintext
17 lines
686 B
Plaintext
( Native words )
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H@ 4 + XCURRENT ! ( make next CODE have 0 prev field )
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CODE _find ( cur w -- a f )
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HL POP, ( w ) DE POP, ( cur ) chkPS,
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HL PUSH, ( --> lvl 1 )
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( First, figure out string len )
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A (HL) LDrr, A ORr,
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( special case. zero len? we never find anything. )
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IFZ, PUSH0, JPNEXT, THEN,
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BC PUSH, ( --> lvl 2, protect )
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( Let's do something weird: We'll hold HL by the *tail*.
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Because of our dict structure and because we know our
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lengths, it's easier to compare starting from the end. )
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C A LDrr, B 0 LDri, ( C holds our length )
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BC ADDHLd, HL INCd, ( HL points to after-last-char )
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( cont . )
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