CHAR:
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Vocabulary
syntax

Syntax

CHAR: token

Inputs and outputs

token

a literal character, escape code, or Unicode code point name

Word description
Adds a Unicode code point to the parse tree.

Examples

CHAR: x CHAR: \x32 CHAR: \u000032 CHAR: \u{32} CHAR: \u{exclamation-mark} CHAR: exclamation-mark CHAR: ugaritic-letter-samka

Definition

USING: combinators kernel lexer namespaces sequences splitting
strings strings.parser strings.parser.private ;

IN: syntax

SYNTAX: CHAR:
    lexer get parse-raw [ "token" throw-unexpected-eof ] unless* 
    {
        { [ dup length 1 = ] [ first ] }
        { [ "\\" ?head ] [ next-escape >string "" assert= ] }
        [ name>char-hook get ( name -- char ) call-effect ]
    } cond suffix! ;