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grammar: preserve token declaration order

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In a declaration %token A B, the token A is declared before B, but in %left
A B (or with %precedence or %nonassoc or %right), the token B was declared
before A (tokens were declared in reverse order).

* src/symlist.h, src/symlist.c (symbol_list_append): New.
* src/parse-gram.y: Use it instead of symbol_list_prepend.
* tests/input.at: Adjust expectations.
This commit is contained in:
Valentin Tolmer
2013-01-25 11:12:47 +01:00
committed by Akim Demaille
parent 9b3bb25885
commit 93561c21e8
5 changed files with 33 additions and 7 deletions
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6
src/parse-gram.y
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@@ -503,7 +503,7 @@ symbols.prec:
symbol.prec
{ $$ = symbol_list_sym_new ($1, @1); }
| symbols.prec symbol.prec
{ $$ = symbol_list_prepend ($1, symbol_list_sym_new ($2, @2)); }
{ $$ = symbol_list_append ($1, symbol_list_sym_new ($2, @2)); }
;
symbol.prec:
@@ -516,12 +516,12 @@ symbols.1:
symbol
{ $$ = symbol_list_sym_new ($1, @1); }
| symbols.1 symbol
{ $$ = symbol_list_prepend ($1, symbol_list_sym_new ($2, @2)); }
{ $$ = symbol_list_append ($1, symbol_list_sym_new ($2, @2)); }
;
generic_symlist:
generic_symlist_item { $$ = $1; }
| generic_symlist generic_symlist_item { $$ = symbol_list_prepend ($1, $2); }
| generic_symlist generic_symlist_item { $$ = symbol_list_append ($1, $2); }
;
generic_symlist_item: