diff --git a/.codeclimate.yml b/.codeclimate.yml
index 1dfdc13a..a0073b71 100644
--- a/.codeclimate.yml
+++ b/.codeclimate.yml
@@ -1,27 +1,13 @@
----
-engines:
-  duplication:
-    enabled: true
-    config:
-      languages:
-      - ruby
-      - javascript
-      - python
-      - php
+version: "2"
+checks:
   fixme:
     enabled: true
   phpmd:
     enabled: true
     config:
       rulesets: rulesets.xml
-ratings:
-  paths:
-  - "**.inc"
-  - "**.js"
-  - "**.jsx"
-  - "**.module"
-  - "**.php"
-  - "**.py"
-  - "**.rb"
+  similar-code:
+    config:
+      threshold: 64
 exclude_patterns:
-- "**/tests/**"
+  - "**/tests/**"
diff --git a/src/Phug/Lexer/Lexer.php b/src/Phug/Lexer/Lexer.php
index a603b296..dd32a569 100644
--- a/src/Phug/Lexer/Lexer.php
+++ b/src/Phug/Lexer/Lexer.php
@@ -90,6 +90,7 @@ public function __construct($options = null)
             'indent_style'             => null,
             'indent_width'             => null,
             'allow_mixed_indent'       => true,
+            'multiline_interpolation'  => true,
             'multiline_markup_enabled' => true,
             'encoding'                 => null,
             'lexer_modules'            => [],
@@ -216,6 +217,7 @@ public function lex($input, $path = null)
             'indent_style'             => $this->getOption('indent_style'),
             'indent_width'             => $this->getOption('indent_width'),
             'allow_mixed_indent'       => $this->getOption('allow_mixed_indent'),
+            'multiline_interpolation'  => $this->getOption('multiline_interpolation'),
             'multiline_markup_enabled' => $this->getOption('multiline_markup_enabled'),
             'level'                    => $this->getOption('level'),
             'mixin_keyword'            => $this->getRegExpOption('mixin_keyword'),
diff --git a/src/Phug/Lexer/Lexer/Analyzer/LineAnalyzer.php b/src/Phug/Lexer/Lexer/Analyzer/LineAnalyzer.php
index 3fc4d149..36ac9cc6 100644
--- a/src/Phug/Lexer/Lexer/Analyzer/LineAnalyzer.php
+++ b/src/Phug/Lexer/Lexer/Analyzer/LineAnalyzer.php
@@ -68,36 +68,6 @@ public function disallowInterpolation()
         $this->allowedInterpolation = false;
     }
 
-    protected function getLine()
-    {
-        $line = [];
-        $indent = $this->reader->match('[ \t]+(?=\S)') ? mb_strlen($this->reader->getMatch(0)) : INF;
-        if ($indent < $this->maxIndent) {
-            $this->maxIndent = $indent;
-        }
-
-        if ($this->allowedInterpolation) {
-            foreach ($this->state->scan(InterpolationScanner::class) as $subToken) {
-                $line[] = $subToken instanceof TextToken ? $subToken->getValue() : $subToken;
-            }
-        }
-
-        if (($text = $this->reader->readUntilNewLine()) !== null) {
-            $line[] = $text;
-        }
-
-        return $line;
-    }
-
-    protected function recordLine()
-    {
-        $this->lines[] = $this->getLine();
-
-        if ($this->newLine = $this->reader->peekNewLine()) {
-            $this->reader->consume(1);
-        }
-    }
-
     public function analyze($quitOnOutdent, array $breakChars = [])
     {
         $this->outdent = false;
@@ -105,26 +75,9 @@ public function analyze($quitOnOutdent, array $breakChars = [])
         $this->newLevel = $this->level;
         $breakChars = array_merge($breakChars, [' ', "\t", "\n"]);
         $this->newLine = false;
-        $first = true;
-
-        while ($this->reader->hasLength()) {
-            $this->newLine = true;
-            $indentationScanner = new IndentationScanner();
-            $newLevel = $indentationScanner->getIndentLevel($this->state, $this->level);
-
-            if (!$first || $newLevel > $this->newLevel) {
-                $this->newLevel = $newLevel;
-            }
-
-            $first = false;
-
-            if (!$this->reader->peekChars($breakChars)) {
-                $this->outdent = $this->newLevel < $this->level;
-
-                break;
-            }
 
-            if ($this->newLevel < $this->level && $this->reader->match('[ \t]*\n')) {
+        foreach ($this->hasChunksUntil($breakChars) as $lowerLevel) {
+            if ($lowerLevel && $this->reader->match('[ \t]*\n')) {
                 $this->reader->consume(mb_strlen($this->reader->getMatch(0)));
                 $this->lines[] = [];
 
@@ -202,4 +155,69 @@ public function getNewLevel()
     {
         return $this->newLevel;
     }
+
+    protected function getLineChunks()
+    {
+        $line = [];
+
+        if ($this->allowedInterpolation) {
+            foreach ($this->state->scan(InterpolationScanner::class) as $subToken) {
+                $line[] = $subToken instanceof TextToken ? $subToken->getValue() : $subToken;
+            }
+        }
+
+        if (($text = $this->reader->readUntilNewLine()) !== null) {
+            $line[] = $text;
+        }
+
+        return $line;
+    }
+
+    protected function getLine()
+    {
+        $indent = $this->reader->match('[ \t]+(?=\S)') ? mb_strlen($this->reader->getMatch(0)) : INF;
+
+        if ($indent < $this->maxIndent) {
+            $this->maxIndent = $indent;
+        }
+
+        return $this->getLineChunks();
+    }
+
+    protected function recordLine()
+    {
+        $this->lines[] = $this->getLine();
+
+        if ($this->newLine = $this->reader->peekNewLine()) {
+            $this->reader->consume(1);
+        }
+    }
+
+    protected function setNewLevel($newLevel, $first = false)
+    {
+        if (!$first || $newLevel > $this->newLevel) {
+            $this->newLevel = $newLevel;
+        }
+    }
+
+    protected function hasChunksUntil($breakChars)
+    {
+        $first = true;
+
+        while ($this->reader->hasLength()) {
+            $this->newLine = true;
+            $indentationScanner = new IndentationScanner();
+            $newLevel = $indentationScanner->getIndentLevel($this->state, $this->level);
+            $this->setNewLevel($newLevel, $first);
+            $first = false;
+
+            if (!$this->reader->peekChars($breakChars)) {
+                $this->outdent = $this->newLevel < $this->level;
+
+                break;
+            }
+
+            yield $this->newLevel < $this->level;
+        }
+    }
 }
diff --git a/src/Phug/Lexer/Lexer/Scanner/InterpolationScanner.php b/src/Phug/Lexer/Lexer/Scanner/InterpolationScanner.php
index 04236e5e..0bc737c2 100644
--- a/src/Phug/Lexer/Lexer/Scanner/InterpolationScanner.php
+++ b/src/Phug/Lexer/Lexer/Scanner/InterpolationScanner.php
@@ -11,34 +11,45 @@
 use Phug\Lexer\Token\ExpressionToken;
 use Phug\Lexer\Token\InterpolationEndToken;
 use Phug\Lexer\Token\InterpolationStartToken;
+use Phug\Lexer\Token\NewLineToken;
 use Phug\Lexer\Token\TagInterpolationEndToken;
 use Phug\Lexer\Token\TagInterpolationStartToken;
 use Phug\Lexer\Token\TextToken;
 
 class InterpolationScanner implements ScannerInterface
 {
-    protected function scanInterpolation(State $state, $tagInterpolation, $interpolation, $escape)
+    protected function throwEndOfLineExceptionIf(State $state, $condition)
     {
-        if ($tagInterpolation) {
-            /** @var TagInterpolationStartToken $start */
-            $start = $state->createToken(TagInterpolationStartToken::class);
-            /** @var TagInterpolationEndToken $end */
-            $end = $state->createToken(TagInterpolationEndToken::class);
+        if ($condition) {
+            $state->throwException('End of line was reached with no closing bracket for interpolation.');
+        }
+    }
 
-            $start->setEnd($end);
-            $end->setStart($start);
+    protected function scanTagInterpolation(State $state, $tagInterpolation)
+    {
+        /** @var TagInterpolationStartToken $start */
+        $start = $state->createToken(TagInterpolationStartToken::class);
+        /** @var TagInterpolationEndToken $end */
+        $end = $state->createToken(TagInterpolationEndToken::class);
 
-            $lexer = $state->getLexer();
+        $start->setEnd($end);
+        $end->setStart($start);
 
-            yield $start;
-            foreach ($lexer->lex($tagInterpolation) as $token) {
-                yield $token;
-            }
-            yield $end;
+        $lexer = $state->getLexer();
+
+        yield $start;
+
+        foreach ($lexer->lex($tagInterpolation) as $token) {
+            $this->throwEndOfLineExceptionIf($state, $token instanceof NewLineToken);
 
-            return;
+            yield $token;
         }
 
+        yield $end;
+    }
+
+    protected function scanExpressionInterpolation(State $state, $interpolation, $escape)
+    {
         /** @var InterpolationStartToken $start */
         $start = $state->createToken(InterpolationStartToken::class);
         /** @var InterpolationEndToken $end */
@@ -50,6 +61,7 @@ protected function scanInterpolation(State $state, $tagInterpolation, $interpola
         /** @var ExpressionToken $token */
         $token = $state->createToken(ExpressionToken::class);
         $token->setValue($interpolation);
+
         if ($escape === '#') {
             $token->escape();
         }
@@ -59,6 +71,20 @@ protected function scanInterpolation(State $state, $tagInterpolation, $interpola
         yield $end;
     }
 
+    protected function scanInterpolation(State $state, $tagInterpolation, $interpolation, $escape)
+    {
+        $this->throwEndOfLineExceptionIf(
+            $state,
+            !$state->getOption('multiline_interpolation') && strpos($interpolation, "\n") !== false
+        );
+
+        if ($tagInterpolation) {
+            return $this->scanTagInterpolation($state, $tagInterpolation);
+        }
+
+        return $this->scanExpressionInterpolation($state, $interpolation, $escape);
+    }
+
     protected function needSeparationBlankLine(State $state)
     {
         $reader = $state->getReader();
diff --git a/tests/Phug/Lexer/Scanner/CommentScannerTest.php b/tests/Phug/Lexer/Scanner/CommentScannerTest.php
index 7851e04f..5153b635 100644
--- a/tests/Phug/Lexer/Scanner/CommentScannerTest.php
+++ b/tests/Phug/Lexer/Scanner/CommentScannerTest.php
@@ -19,9 +19,11 @@ class CommentScannerTest extends AbstractLexerTest
      * @covers \Phug\Lexer\Scanner\CommentScanner
      * @covers \Phug\Lexer\Scanner\CommentScanner::scan
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::<public>
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::hasChunksUntil
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::setNewLevel
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::recordLine
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
-     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLineChunks
      */
     public function testVisibleSingleLineComment()
     {
@@ -42,9 +44,11 @@ public function testVisibleSingleLineComment()
      * @covers \Phug\Lexer\Scanner\CommentScanner
      * @covers \Phug\Lexer\Scanner\CommentScanner::scan
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::<public>
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::hasChunksUntil
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::setNewLevel
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::recordLine
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
-     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLineChunks
      */
     public function testInvisibleSingleLineComment()
     {
@@ -67,7 +71,7 @@ public function testInvisibleSingleLineComment()
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::<public>
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::recordLine
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
-     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLineChunks
      */
     public function testVisibleMultiLineComment()
     {
@@ -93,7 +97,7 @@ public function testVisibleMultiLineComment()
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::<public>
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::recordLine
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
-     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLineChunks
      */
     public function testInvisibleMultiLineComment()
     {
@@ -119,7 +123,7 @@ public function testInvisibleMultiLineComment()
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::<public>
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::recordLine
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
-     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLineChunks
      */
     public function testCommentInIndent()
     {
@@ -148,7 +152,7 @@ public function testCommentInIndent()
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::<public>
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::recordLine
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
-     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLineChunks
      */
     public function testCommentQuit()
     {
diff --git a/tests/Phug/Lexer/Scanner/FilterScannerTest.php b/tests/Phug/Lexer/Scanner/FilterScannerTest.php
index 8a60c6a6..eca6134c 100644
--- a/tests/Phug/Lexer/Scanner/FilterScannerTest.php
+++ b/tests/Phug/Lexer/Scanner/FilterScannerTest.php
@@ -22,9 +22,11 @@ class FilterScannerTest extends AbstractLexerTest
      * @covers \Phug\Lexer\Scanner\FilterScanner
      * @covers \Phug\Lexer\Scanner\FilterScanner::scan
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::<public>
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::hasChunksUntil
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::setNewLevel
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::recordLine
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
-     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLineChunks
      */
     public function testFilter()
     {
@@ -106,7 +108,7 @@ public function testFilter()
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::<public>
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::recordLine
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
-     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLineChunks
      */
     public function testStylusFilter()
     {
diff --git a/tests/Phug/Lexer/Scanner/InterpolationScannerTest.php b/tests/Phug/Lexer/Scanner/InterpolationScannerTest.php
index 6c206567..2a27d0a9 100644
--- a/tests/Phug/Lexer/Scanner/InterpolationScannerTest.php
+++ b/tests/Phug/Lexer/Scanner/InterpolationScannerTest.php
@@ -181,4 +181,31 @@ public function testTokenInLineAnalyzer()
         ]);
         $analyzer->getFlatLines();
     }
+
+    /**
+     * @covers \Phug\Lexer\Scanner\InterpolationScanner::scanTagInterpolation
+     * @covers \Phug\Lexer\Scanner\InterpolationScanner::throwEndOfLineExceptionIf
+     * @covers \Phug\Lexer\Scanner\InterpolationScanner::scanInterpolation
+     */
+    public function testNewLineInTagInterpolation()
+    {
+        $this->expectMessageToBeThrown('End of line was reached with no closing bracket for interpolation.');
+
+        $input = "p #[em\n]";
+        $tokens = iterator_to_array($this->lexer->lex($input));
+    }
+
+    /**
+     * @covers \Phug\Lexer\Scanner\InterpolationScanner::scanExpressionInterpolation
+     * @covers \Phug\Lexer\Scanner\InterpolationScanner::throwEndOfLineExceptionIf
+     * @covers \Phug\Lexer\Scanner\InterpolationScanner::scanInterpolation
+     */
+    public function testNewLineInInterpolation()
+    {
+        $this->expectMessageToBeThrown('End of line was reached with no closing bracket for interpolation.');
+
+        $this->lexer->setOption('multiline_interpolation', false);
+        $input = "p #{em\n}";
+        iterator_to_array($this->lexer->lex($input));
+    }
 }
diff --git a/tests/Phug/Lexer/Scanner/MarkupScannerTest.php b/tests/Phug/Lexer/Scanner/MarkupScannerTest.php
index 17dc476d..e235c9e1 100644
--- a/tests/Phug/Lexer/Scanner/MarkupScannerTest.php
+++ b/tests/Phug/Lexer/Scanner/MarkupScannerTest.php
@@ -24,9 +24,11 @@ class MarkupScannerTest extends AbstractLexerTest
      * @covers \Phug\Lexer\Scanner\MarkupScanner
      * @covers \Phug\Lexer\Scanner\MarkupScanner::scan
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::<public>
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::hasChunksUntil
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::setNewLevel
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::recordLine
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
-     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLineChunks
      */
     public function testMarkupInCondition()
     {
@@ -127,7 +129,7 @@ public function testMarkupInCondition()
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::<public>
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::recordLine
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
-     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLineChunks
      */
     public function testRawMarkup()
     {
@@ -275,7 +277,7 @@ public function testRawMarkup()
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::<public>
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::recordLine
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
-     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLineChunks
      */
     public function testRawMarkupQuit()
     {
diff --git a/tests/Phug/Lexer/Scanner/TextBlockScannerTest.php b/tests/Phug/Lexer/Scanner/TextBlockScannerTest.php
index 5322daf7..1a3e583e 100644
--- a/tests/Phug/Lexer/Scanner/TextBlockScannerTest.php
+++ b/tests/Phug/Lexer/Scanner/TextBlockScannerTest.php
@@ -33,7 +33,7 @@ class TextBlockScannerTest extends AbstractLexerTest
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::<public>
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::recordLine
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
-     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLineChunks
      * @covers \Phug\Lexer\Scanner\InterpolationScanner
      * @covers \Phug\Lexer\Scanner\InterpolationScanner::scanInterpolation
      * @covers \Phug\Lexer\Scanner\InterpolationScanner::scan
@@ -176,7 +176,7 @@ public function testScan()
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::<public>
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::recordLine
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
-     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLine
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::getLineChunks
      */
     public function testScanWhiteSpaces()
     {
diff --git a/tests/Phug/Lexer/Scanner/TextScannerTest.php b/tests/Phug/Lexer/Scanner/TextScannerTest.php
index b6f56b15..bac5ee35 100644
--- a/tests/Phug/Lexer/Scanner/TextScannerTest.php
+++ b/tests/Phug/Lexer/Scanner/TextScannerTest.php
@@ -71,6 +71,8 @@ public function testTextQuit()
 
     /**
      * @covers \Phug\Lexer\Analyzer\LineAnalyzer::<public>
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::hasChunksUntil
+     * @covers \Phug\Lexer\Analyzer\LineAnalyzer::setNewLevel
      */
     public function testStartingWhitespace()
     {