1 files changed, 0 insertions, 107 deletions
diff --git a/parser.y b/parser.y
deleted file mode 100644
index 9a94480..0000000
--- a/parser.y
+++ /dev/null
@@ -1,107 +0,0 @@
-%{
-#include <stdio.h>
-#include "ast.h"
-
-extern char *yytext;
-extern int yylineno;
-extern int yylex();
-
-ASTNode *ast_root;
-
-void yyerror(const char *s) { 
-  fprintf(stderr, "Parse error at token \"%s\", line %d: %s\n", yytext, yylineno, s); 
-}
-%}
-
-
-%union {
-  int            num;
-  char           *id;
-  int            op;
-  struct ASTNode *node;
-}
-
-%start program
-
-%token <id>  TOKEN_IDENTIFIER
-%token <num> TOKEN_NUMERAL
-%token       TOKEN_ASSIGN
-%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_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
-
-%type <node> program statement variable arithmetic_expression boolean_expression
-%type <op>   arithmetic_operation boolean_operation relational_operation
-
-
-%%
-  
-program               : statement
-                        { ast_root = $1; }
-                      ;
-
-statement             : TOKEN_SKIP
-                        { $$ = ast_skip(); }
-                      | variable TOKEN_ASSIGN arithmetic_expression
-                        { $$ = ast_assign($1, $3); }
-                      | TOKEN_LEFT_PARENTHESIS statement TOKEN_SEMICOLON statement TOKEN_RIGHT_PARENTHESIS
-                        { $$ = ast_seq($2, $4); }
-                      | TOKEN_IF boolean_expression TOKEN_THEN statement TOKEN_ELSE statement TOKEN_END
-                        { $$ = ast_if($2, $4, $6); }
-                      | TOKEN_WHILE boolean_expression TOKEN_DO statement TOKEN_END
-                        { $$ = ast_while($2, $4); }
-                      ;
-
-variable              : TOKEN_IDENTIFIER
-                        { $$ = ast_var($1); }
-                      ;
-
-arithmetic_expression : TOKEN_LEFT_PARENTHESIS arithmetic_expression arithmetic_operation arithmetic_expression TOKEN_RIGHT_PARENTHESIS
-                        { $$ = ast_aop($3, $2, $4); }
-                      | variable
-                        { $$ = $1; }
-                      | TOKEN_NUMERAL
-                        { $$ = ast_int($1); }
-                      ;
-
-arithmetic_operation  : TOKEN_PLUS
-                        { $$ = AOP_ADD; }
-                      | TOKEN_MINUS
-                        { $$ = AOP_SUB; }
-                      | TOKEN_MULTIPLY
-                        { $$ = AOP_MUL; }
-                      ;
-
-boolean_expression    : TOKEN_LEFT_PARENTHESIS boolean_expression boolean_operation boolean_expression TOKEN_RIGHT_PARENTHESIS
-                        { $$ = ast_bop($3, $2, $4); }
-                      | TOKEN_NOT boolean_expression
-                        { $$ = ast_not($2); }
-                      | arithmetic_expression relational_operation arithmetic_expression
-                        { $$ = ast_rop($2, $1, $3); }
-                      ;
-
-boolean_operation     : TOKEN_OR
-                        { $$ = BOP_OR; }
-                      | TOKEN_AND
-                        { $$ = BOP_AND; }
-                      ;
-
-relational_operation  : TOKEN_EQUALS
-                        { $$ = ROP_EQ; }
-                      | TOKEN_NOT_EQUALS
-                        { $$ = ROP_NE; }
-                      | TOKEN_LESS_THAN
-                        { $$ = ROP_LT; }
-                      | TOKEN_LESS_EQUAL
-                        { $$ = ROP_LE; }
-                      | TOKEN_GREATER_THAN
-                        { $$ = ROP_GT; }
-                      | TOKEN_GREATER_EQUAL
-                        { $$ = ROP_GE; }
-                      ;
-
-%%