for #887, complete Parser test

sharding-core/src/main/java/io/shardingsphere/core/parsing/lexer/analyzer/Tokenizer.java

@@ -157,6 +157,10 @@ public final class Tokenizer {
             int length = getLengthUntilTerminatedChar('"');
             return new Token(Literals.IDENTIFIER, input.substring(offset, offset + length), offset + length);
         }
+        if ('[' == charAt(offset)) {
+            int length = getLengthUntilTerminatedChar(']');
+            return new Token(Literals.IDENTIFIER, input.substring(offset, offset + length), offset + length);
+        }
         int length = 0;
         while (isIdentifierChar(charAt(offset + length))) {
             length++;

sharding-core/src/main/java/io/shardingsphere/core/parsing/lexer/dialect/oracle/OracleLexer.java

@@ -18,6 +18,7 @@
 package io.shardingsphere.core.parsing.lexer.dialect.oracle;
 
 import io.shardingsphere.core.parsing.lexer.Lexer;
+import io.shardingsphere.core.parsing.lexer.analyzer.CharType;
 import io.shardingsphere.core.parsing.lexer.analyzer.Dictionary;
 
 /**
@@ -37,4 +38,14 @@ public final class OracleLexer extends Lexer {
     protected boolean isHintBegin() {
         return '/' == getCurrentChar(0) && '*' == getCurrentChar(1) && '+' == getCurrentChar(2);
     }
+    
+    @Override
+    protected boolean isIdentifierBegin(final char ch) {
+        return CharType.isAlphabet(ch) || '\"' == ch || '_' == ch || '$' == ch;
+    }
+    
+    @Override
+    protected boolean isCharsBegin() {
+        return '\'' == getCurrentChar(0);
+    }
 }

sharding-core/src/main/java/io/shardingsphere/core/parsing/lexer/dialect/sqlserver/SQLServerLexer.java

@@ -18,6 +18,7 @@
 package io.shardingsphere.core.parsing.lexer.dialect.sqlserver;
 
 import io.shardingsphere.core.parsing.lexer.Lexer;
+import io.shardingsphere.core.parsing.lexer.analyzer.CharType;
 import io.shardingsphere.core.parsing.lexer.analyzer.Dictionary;
 
 /**
@@ -47,4 +48,9 @@ public final class SQLServerLexer extends Lexer {
     protected boolean isSupportNChars() {
         return true;
     }
+    
+    @Override
+    protected boolean isIdentifierBegin(final char ch) {
+        return CharType.isAlphabet(ch) || '[' == ch || '_' == ch || '$' == ch;
+    }
 }

sharding-core/src/test/resources/parser/select.xml

@@ -279,6 +279,84 @@
         </order-by-columns>
     </parser-result>
     
+    <parser-result sql-case-id="select_keyword_table_name_with_back_quotes" parameters="1, 2, 9, 10, 'init'">
+        <tables>
+            <table name="t_order" alias="o"/>
+            <table name="t_order_item" alias="i"/>
+        </tables>
+        <tokens>
+            <table-token begin-position="16" original-literals="t_order" />
+            <table-token begin-position="31" original-literals="t_order_item" />
+        </tokens>
+        <or-condition>
+            <and-condition>
+                <condition column-name="user_id" table-name="t_order" operator="IN">
+                    <value index="0" literal="1" type="int" />
+                    <value index="1" literal="2" type="int" />
+                </condition>
+                <condition column-name="order_id" table-name="t_order" operator="BETWEEN">
+                    <value index="2" literal="9" type="int" />
+                    <value index="3" literal="10" type="int" />
+                </condition>
+            </and-condition>
+        </or-condition>
+        <order-by-columns>
+            <order-by-column owner="i" name="item_id" order-direction="ASC" />
+        </order-by-columns>
+    </parser-result>
+    
+    <parser-result sql-case-id="select_keyword_table_name_with_double_quotes" parameters="1, 2, 9, 10, 'init'">
+        <tables>
+            <table name="t_order" alias="o"/>
+            <table name="t_order_item" alias="i"/>
+        </tables>
+        <tokens>
+            <table-token begin-position="16" original-literals="t_order" />
+            <table-token begin-position="31" original-literals="t_order_item" />
+        </tokens>
+        <or-condition>
+            <and-condition>
+                <condition column-name="user_id" table-name="t_order" operator="IN">
+                    <value index="0" literal="1" type="int" />
+                    <value index="1" literal="2" type="int" />
+                </condition>
+                <condition column-name="order_id" table-name="t_order" operator="BETWEEN">
+                    <value index="2" literal="9" type="int" />
+                    <value index="3" literal="10" type="int" />
+                </condition>
+            </and-condition>
+        </or-condition>
+        <order-by-columns>
+            <order-by-column owner="i" name="item_id" order-direction="ASC" />
+        </order-by-columns>
+    </parser-result>
+    
+    <parser-result sql-case-id="select_keyword_table_name_with_square_brackets" parameters="1, 2, 9, 10, 'init'">
+        <tables>
+            <table name="t_order" alias="o"/>
+            <table name="t_order_item" alias="i"/>
+        </tables>
+        <tokens>
+            <table-token begin-position="16" original-literals="t_order" />
+            <table-token begin-position="31" original-literals="t_order_item" />
+        </tokens>
+        <or-condition>
+            <and-condition>
+                <condition column-name="user_id" table-name="t_order" operator="IN">
+                    <value index="0" literal="1" type="int" />
+                    <value index="1" literal="2" type="int" />
+                </condition>
+                <condition column-name="order_id" table-name="t_order" operator="BETWEEN">
+                    <value index="2" literal="9" type="int" />
+                    <value index="3" literal="10" type="int" />
+                </condition>
+            </and-condition>
+        </or-condition>
+        <order-by-columns>
+            <order-by-column owner="i" name="item_id" order-direction="ASC" />
+        </order-by-columns>
+    </parser-result>
+    
     <parser-result sql-case-id="select_alias_as_keyword" parameters="1">
         <tables>
             <table name="t_order_item" alias="length" />