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Mention how to fail from action in pegs

db4
Chris Double 2008-03-31 17:26:42 +13:00
parent f66774e875
commit a41f8ef733
1 changed files with 1 additions and 1 deletions
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extra/peg/peg-docs.factor
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@ -137,7 +137,7 @@ HELP: action
"Returns a parser that calls the 'p1' parser and applies the quotation to the AST resulting " "Returns a parser that calls the 'p1' parser and applies the quotation to the AST resulting "
"from that parse. The result of the quotation is then used as the final AST. This can be used " "from that parse. The result of the quotation is then used as the final AST. This can be used "
"for manipulating the parse tree to produce a AST better suited for the task at hand rather than " "for manipulating the parse tree to produce a AST better suited for the task at hand rather than "
"the default AST." } "the default AST. If the quotation returns " { $link fail } " then the parser fails." }
{ $code "CHAR: 0 CHAR: 9 range [ to-digit ] action" } ; { $code "CHAR: 0 CHAR: 9 range [ to-digit ] action" } ;
HELP: sp HELP: sp