Fix #172 Support parameter binding

Signed-off-by: Madhura Jayaratne <madhura.cj@gmail.com>

7 files changed, 39 insertions, 0 deletions

diff --git a/src/Components/Expression.php b/src/Components/Expression.php
index a1b460b..cce797f 100644
--- a/src/Components/Expression.php
+++ b/src/Components/Expression.php
@@ -267,6 +267,8 @@ class Expression extends Component
                 || ($token->type === Token::TYPE_BOOL)
                 || (($token->type === Token::TYPE_SYMBOL)
                 && ($token->flags & Token::FLAG_SYMBOL_VARIABLE))
+                || (($token->type === Token::TYPE_SYMBOL)
+                && ($token->flags & Token::FLAG_SYMBOL_PARAMETER))
                 || (($token->type === Token::TYPE_OPERATOR)
                 && ($token->value !== '.'))
             ) {
diff --git a/src/Context.php b/src/Context.php
index f31f42c..8f180bf 100644
--- a/src/Context.php
+++ b/src/Context.php
@@ -388,6 +388,8 @@ abstract class Context
             return Token::FLAG_SYMBOL_VARIABLE;
         } elseif ($str[0] === '`') {
             return Token::FLAG_SYMBOL_BACKTICK;
+        } elseif ($str[0] === ':') {
+            return Token::FLAG_SYMBOL_PARAMETER;
         }
 
         return null;
diff --git a/src/Lexer.php b/src/Lexer.php
index 1aa376e..e734c6f 100644
--- a/src/Lexer.php
+++ b/src/Lexer.php
@@ -871,6 +871,10 @@ class Lexer extends Core
                 $token .= $this->str[$this->last++];
                 $flags |= Token::FLAG_SYMBOL_SYSTEM;
             }
+        } elseif ($flags & Token::FLAG_SYMBOL_PARAMETER) {
+            if ($this->last + 1 < $this->len) {
+                $this->last++;
+            }
         } else {
             $token = '';
         }
diff --git a/src/Token.php b/src/Token.php
index e481119..c3bdc19 100644
--- a/src/Token.php
+++ b/src/Token.php
@@ -167,6 +167,7 @@ class Token
     const FLAG_SYMBOL_BACKTICK = 2;
     const FLAG_SYMBOL_USER = 4;
     const FLAG_SYMBOL_SYSTEM = 8;
+    const FLAG_SYMBOL_PARAMETER = 16;
 
     /**
      * The token it its raw string representation.
@@ -301,6 +302,9 @@ class Token
                         'UTF-8'
                     );
                 }
+                if ((isset($str[0])) && ($str[0] === ':')) {
+                    $str = mb_substr($str, 1, mb_strlen($str), 'UTF-8');
+                }
                 if ((isset($str[0])) && (($str[0] === '`')
                 || ($str[0] === '"') || ($str[0] === '\''))
                 ) {
diff --git a/tests/Misc/ParameterTest.php b/tests/Misc/ParameterTest.php
new file mode 100644
index 0000000..8aaed96
--- /dev/null
+++ b/tests/Misc/ParameterTest.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace PhpMyAdmin\SqlParser\Tests\Misc;
+
+use PhpMyAdmin\SqlParser\Tests\TestCase;
+
+class ParameterTest extends TestCase
+{
+    /**
+     * @dataProvider testParameterProvider
+     *
+     * @param mixed $test
+     */
+    public function testParameter($test)
+    {
+        $this->runParserTest($test);
+    }
+
+    public function testParameterProvider()
+    {
+        return array(
+            array('misc/parseParameter'),
+        );
+    }
+}
diff --git a/tests/data/misc/parseParameter.in b/tests/data/misc/parseParameter.in
new file mode 100644
index 0000000..0a34382
--- /dev/null
+++ b/tests/data/misc/parseParameter.in
@@ -0,0 +1 @@
+INSERT INTO `person` (`firstname`, `lastname`, `email`) VALUES (:firstname, :lastname, :email);
\ No newline at end of file
diff --git a/tests/data/misc/parseParameter.out b/tests/data/misc/parseParameter.out
new file mode 100644
index 0000000..d1dd350
--- /dev/null
+++ b/tests/data/misc/parseParameter.out
@@ -0,0 +1 @@
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\ No newline at end of file