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Diffstat (limited to 'src/cmd/goyacc/doc.go')
| -rw-r--r-- | src/cmd/goyacc/doc.go | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/cmd/goyacc/doc.go b/src/cmd/goyacc/doc.go index eea70adab..686f75745 100644 --- a/src/cmd/goyacc/doc.go +++ b/src/cmd/goyacc/doc.go @@ -24,10 +24,12 @@ argument that conforms to the following interface: type yyLexer interface { Lex(lval *yySymType) int + Error(e string) } Lex should return the token identifier, and place other token information in lval (which replaces the usual yylval). +Error is equivalent to yyerror in the original yacc. Code inside the parser may refer to the variable yylex which holds the yyLexer passed to Parse. |