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Diffstat (limited to 'taccle/examples/if_then_else.tac')
-rw-r--r-- | taccle/examples/if_then_else.tac | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/taccle/examples/if_then_else.tac b/taccle/examples/if_then_else.tac new file mode 100644 index 0000000..eee631a --- /dev/null +++ b/taccle/examples/if_then_else.tac @@ -0,0 +1,18 @@ +# $Id: if_then_else.tac,v 1.1 2004/08/18 23:53:42 tang Exp $ + +# The classical if/then/else ambiguity. taccle resolves this by +# giving higher precedence to shifting else. +# +# References: +# Dragon book, page 250 +# lex & yacc, pages 233-235 + +%token IF ELSE TERMINAL + +%% + +stmt: IF '(' cond ')' stmt + | IF '(' cond ')' stmt ELSE stmt + | TERMINAL; + +cond: TERMINAL; |