Vocabulary
lexer

Inputs and outputs

lexer	a lexer
quot	a quotation with stack effect ( col line -- newcol )

Word description
Applies a quotation to the current column and line text to produce a new column, and moves the lexer position.

Definition

USING: accessors kernel ;

IN: lexer

: change-lexer-column ( lexer quot -- )
[ [ column>> ] [ line-text>> ] bi ] prepose keep column<< ;
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