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Author SHA1 Message Date
Adrian Vogelsgesang 72d4ae5306 lalr1.cc: add LAC support 
Implement lookahead correction (LAC) for the C++ skeleton.  LAC is a
mechanism to make sure that we report the correct list of expected
tokens if a syntax error occurs.  So far, LAC was only supported for
the C skeleton "yacc.c".

* data/skeletons/lalr1.cc: Add LAC support.
* doc/bison.texi: Update.
 2019-08-09 06:39:59 -05:00
Adrian Vogelsgesang 996abe62d7 style: readability improvements to yacc.c 
* data/skeletons/yacc.c (yysyntax_error): Change the nesting of `m4`
conditions slightly to make it more readable.
The generated C code stays unchanged.
 2019-08-09 06:06:02 -05:00
Adrian Vogelsgesang 0420362ee8 lalr1.cc: reduce "scope" 
* data/skeletons/lalr1.cc (yy_lr_goto_state_): Make it static.
 2019-08-09 06:06:00 -05:00
Adrian Vogelsgesang 6f47eea7ab lalr1.cc: fix indentation of table declarations in the header 
* data/skeletons/lalr1.cc: Fix indentation of table declarations in
the generated header.
 2019-08-09 05:39:30 -05:00