diff options
Diffstat (limited to 'src/parser.y')
| -rw-r--r-- | src/parser.y | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/parser.y b/src/parser.y index 9a94480..cb3544e 100644 --- a/src/parser.y +++ b/src/parser.y @@ -29,7 +29,7 @@ void yyerror(const char *s) { %token TOKEN_LEFT_PARENTHESIS TOKEN_RIGHT_PARENTHESIS %token TOKEN_SEMICOLON %token TOKEN_SKIP -%token TOKEN_IF TOKEN_THEN TOKEN_ELSE TOKEN_END TOKEN_WHILE TOKEN_DO +%token TOKEN_IF TOKEN_THEN TOKEN_ELSE TOKEN_END TOKEN_WHILE TOKEN_DO TOKEN_VAR TOKEN_IN %token TOKEN_PLUS TOKEN_MINUS TOKEN_MULTIPLY %token TOKEN_NOT TOKEN_OR TOKEN_AND %token TOKEN_EQUALS TOKEN_NOT_EQUALS TOKEN_LESS_THAN TOKEN_LESS_EQUAL TOKEN_GREATER_THAN TOKEN_GREATER_EQUAL @@ -54,6 +54,8 @@ statement : TOKEN_SKIP { $$ = ast_if($2, $4, $6); } | TOKEN_WHILE boolean_expression TOKEN_DO statement TOKEN_END { $$ = ast_while($2, $4); } + | TOKEN_VAR variable TOKEN_ASSIGN arithmetic_expression TOKEN_IN statement TOKEN_END + { $$ = ast_let($2, $4, $6); } ; variable : TOKEN_IDENTIFIER |