Russ Cox 2e78447baf cmd/yacc: adjust expansion of $n to be more useful in errors ... When the compiler echoes back an expression, it shows the generated yacc expression. Change the generated code to use a slice so that $3 shows up as yyDollar[3] in such messages. Consider changing testdata/expr/expr.y to say: $$.Sub(float64($1), $3) (The float64 conversion is incorrect.) Before: expr.y:70[expr.go:486]: cannot convert exprS[exprpt - 2].num (type *big.Rat) to type float64 After: expr.y:70[expr.go:492]: cannot convert exprDollar[1].num (type *big.Rat) to type float64 Change-Id: I74e494069df588e62299d1fccb282f3658d8f8f4 Reviewed-on: https://go-review.googlesource.com/4630 Reviewed-by: Rob Pike <r@golang.org>		2015-02-13 17:29:36 +00:00
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testdata/expr	cmd/yacc: fix handling of tokens that don't start with letters	2014-09-29 13:32:14 -07:00
doc.go	cmd/yacc: move cmd/yacc/expr to cmd/yacc/testdata/expr	2014-09-06 15:27:52 -04:00
yacc.go	cmd/yacc: adjust expansion of $n to be more useful in errors	2015-02-13 17:29:36 +00:00