From cf2eb3dde8d9d49f28b9f91a726c865abe948109 Mon Sep 17 00:00:00 2001
From: Tuowen Zhao <ztuowen@gmail.com>
Date: Mon, 19 Sep 2016 22:32:41 +0000
Subject: parseRel as lib

---
 src/parse_expr.yy | 85 -------------------------------------------------------
 1 file changed, 85 deletions(-)
 delete mode 100644 src/parse_expr.yy

(limited to 'src/parse_expr.yy')

diff --git a/src/parse_expr.yy b/src/parse_expr.yy
deleted file mode 100644
index c2943c2..0000000
--- a/src/parse_expr.yy
+++ /dev/null
@@ -1,85 +0,0 @@
-%{
-#include "chill_run_util.hh"
-#include "parse_expr.ll.hh"
-
-extern int yydebug;
-
-void yyerror(const char*);
-int yyparse(simap_vec_t** rel);
-
-static simap_vec_t* return_rel; // used as the return value for yyparse
-
-%}
-
-%union {
-  int val;
-  char* str_val;
-  simap_t* cond_item;
-  simap_vec_t* cond;
-}
-
-%token <val> NUMBER
-%token <val> LEVEL
-%token <str_val> VARIABLE
-
-%left LE GE EQ '<' '>'
-%left '-' '+' '*' '/'
-
-/*the final output from this language should be an Omega Relation object*/
-%type <cond> cond prog
-%type <cond_item> expr add_expr mul_expr neg_expr
-
-%%
-prog : cond                      { return_rel = make_prog($1); }
-;
-
-cond : expr '>' expr             { $$ = make_cond_gt($1, $3); }
-     | expr '<' expr             { $$ = make_cond_lt($1, $3); }
-     | expr GE expr              { $$ = make_cond_ge($1, $3); }
-     | expr LE expr              { $$ = make_cond_le($1, $3); }
-     | expr EQ expr              { $$ = make_cond_eq($1, $3); }
-;
-
-expr : add_expr                  { $$ = $1; }
-;
-
-add_expr : add_expr '+' mul_expr { $$ = make_cond_item_add($1,$3); }
-         | add_expr '-' mul_expr { $$ = make_cond_item_sub($1,$3); }
-         | mul_expr              { $$ = $1; }
-;
-
-mul_expr : mul_expr '*' neg_expr { $$ = make_cond_item_mul($1,$3); }
-         | neg_expr              { $$ = $1; }
-;
-
-neg_expr : '-' neg_expr          { $$ = make_cond_item_neg($2); }
-         | '(' expr ')'          { $$ = $2; }
-         | NUMBER                { $$ = make_cond_item_number($1); }
-         | LEVEL                 { $$ = make_cond_item_level($1); }
-         | VARIABLE              { $$ = make_cond_item_variable($1); }
-;
-%%
-
-void yyerror(const char* msg) {
-  fprintf(stderr, "Parse error: %s", msg);
-}
-
-simap_vec_t* parse_relation_vector(const char* expr) {
-  yydebug=0;
-  YY_BUFFER_STATE state;
-  
-  //if(yylex_init()) {
-  //   TODO: error out or something
-  //}
-  
-  state = yy_scan_string(expr);
-  
-  if(yyparse()) {
-    // TODO: error out or something
-  }
-  
-  yy_delete_buffer(state);
-  yylex_destroy();
-  return return_rel;
-}
-
-- 
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