Fix for bug #5887 "Triggers with string literals cause errors"

Fixed small error in new .FRM parser which caused it to handle 
improperly escaped strings.


mysql-test/r/trigger.result:
  Added test for bug #5887 "Triggers with string literals cause errors".
mysql-test/t/trigger.test:
  Added test for bug #5887 "Triggers with string literals cause errors".
sql/parse_file.cc:
  read_escaped_string(): We should not fail when we meet \' sequence 
  in escaped string.

mysql-test/r/trigger.result

@@ -169,3 +169,8 @@ create temporary table t1 (i int);
 create trigger trg before insert on t1 for each row set @a:=1;
 ERROR HY000: Trigger's 't1' is view or temporary table
 drop table t1;
+create table t1 (x1col char);
+create trigger tx1 before insert on t1 for each row set new.x1col = 'x';
+insert into t1 values ('y');
+drop trigger t1.tx1;
+drop table t1;

mysql-test/t/trigger.test

@@ -193,3 +193,17 @@ create temporary table t1 (i int);
 --error 1361
 create trigger trg before insert on t1 for each row set @a:=1;
 drop table t1;
+
+
+
+#
+# Tests for various trigger-related bugs
+#
+
+# Test for bug #5887 "Triggers with string literals cause errors".
+# New .FRM parser was not handling escaped strings properly.
+create table t1 (x1col char);  
+create trigger tx1 before insert on t1 for each row set new.x1col = 'x';
+insert into t1 values ('y');
+drop trigger t1.tx1;
+drop table t1;

sql/parse_file.cc

@@ -502,6 +502,7 @@ read_escaped_string(char *ptr, char *eol, LEX_STRING *str)
 	break;
       case '\'':
 	*write_pos= '\'';
+        break;
       default:
 	return TRUE;
       }