Start back-tick strings support

Author: kylekatarnls

examples/interpolation.js

@@ -0,0 +1,3 @@
+name = 'Bob';
+
+return `Hello ${name}, can you ${(function (verb) { return verb; })('tell')}?`;

examples/interpolation.return

@@ -0,0 +1 @@
+Hello Bob, can you tell?

src/JsPhpize/Compiler/Compiler.php

@@ -138,9 +138,11 @@ function ($pair) use ($visitNode, $indent) {
     protected function visitConstant(Constant $constant)
     {
         $value = $constant->value;
+
         if ($constant->type === 'string' && mb_substr($constant->value, 0, 1) === '"') {
             $value = str_replace('$', '\\$', $value);
         }
+
         if ($constant->type === 'regexp') {
             $regExp = $this->engine->getHelperName('regExp');
             $value = $this->helperWrap($regExp, [var_export($value, true)]);
@@ -217,6 +219,7 @@ protected function visitFunctionCall(FunctionCall $functionCall, $indent)
             $staticCall = $name . '(' . $arguments . ')';
 
             $functions = str_replace(["\n", "\t", "\r", ' '], '', static::STATIC_CALL_FUNCTIONS);
+
             if ($applicant === 'new' || in_array($name, explode(',', $functions))) {
                 return $staticCall;
             }

src/JsPhpize/JsPhpizeOptions.php

@@ -50,7 +50,7 @@ public function __construct($options = [])
             $this->options['patterns'] = [
                 new Pattern(10, 'newline', '\n'),
                 new Pattern(20, 'comment', '\/\/.*?\n|\/\*[\s\S]*?\*\/'),
-                new Pattern(30, 'string', '"(?:\\\\.|[^"\\\\])*"|\'(?:\\\\.|[^\'\\\\])*\''),
+                new Pattern(30, 'string', '"(?:\\\\.|[^"\\\\])*"|\'(?:\\\\.|[^\'\\\\])*\'|`(?:\\\\.|[^`\\\\])*`'),
                 new Pattern(40, 'number', '0[bB][01]+|0[oO][0-7]+|0[xX][0-9a-fA-F]+|(\d+(\.\d*)?|\.\d+)([eE]-?\d+)?'),
                 new Pattern(50, 'lambda', '=>'),
                 new Pattern(60, 'operator', ['delete', 'typeof', 'void'], true),

src/JsPhpize/Lexer/Scanner.php

@@ -3,6 +3,7 @@
 namespace JsPhpize\Lexer;
 
 use JsPhpize\JsPhpize;
+use JsPhpize\Nodes\Constant;
 
 class Scanner
 {
@@ -63,7 +64,16 @@ public function scanNumber($matches)
 
     public function scanString($matches)
     {
-        return $this->valueToken('string', $matches);
+        /** @var Constant $stringToken */
+        $stringToken = $this->valueToken('string', $matches);
+        $delimiter = substr($stringToken->value, 0, 1);
+
+        if ($delimiter === '`') {
+            var_dump($stringToken->value);
+            exit;
+        }
+
+        return $stringToken;
     }
 
     public function scanOperator($matches)

src/JsPhpize/Nodes/Constant.php

@@ -35,6 +35,7 @@ public function __construct($type, $value)
         if (!in_array($type, ['constant', 'number', 'string', 'regexp'])) {
             throw new Exception("The given type [$type] is not a valid constant type.", 23);
         }
+
         $this->type = $type;
         $this->value = $value;
     }
@@ -44,9 +45,11 @@ public function getNonAssignableReason()
         if ($this->type !== 'constant') {
             return "{$this->type} is not assignable.";
         }
+
         if (in_array($this->value, ['NAN', 'INF'])) {
             return "{$this->value} is not assignable.";
         }
+
         if (mb_substr($this->value, 0, 2) === 'M_') {
             return "'M_' prefix is reserved to mathematical constants.";
         }

src/JsPhpize/Parser/Parser.php

@@ -310,6 +310,7 @@ protected function parseJsonMethod($method)
     {
         if ($method->type === 'variable' && ($function = $this->jsonMethodToPhpFunction($method->value))) {
             $this->skip(2);
+
             if (($next = $this->get(0)) && $next->is('(')) {
                 $this->skip();
 
@@ -370,6 +371,7 @@ protected function parseKeywordStatement($token)
     {
         $name = $token->value;
         $keyword = new Block($name);
+
         switch ($name) {
             case 'typeof':
                 throw new Exception('typeof keyword not supported', 26);
@@ -384,9 +386,11 @@ protected function parseKeywordStatement($token)
                     'clone' => 'Object',
                 ];
                 $value = $this->get(0);
+
                 if (isset($expects[$name]) && !$value) {
                     throw new Exception($expects[$name] . " expected after '" . $name . "'", 25);
                 }
+
                 $this->handleOptionalValue($keyword, $value, $name);
                 break;
             case 'case':
@@ -407,6 +411,7 @@ protected function parseKeywordStatement($token)
     protected function parseKeyword($token)
     {
         $keyword = $this->parseKeywordStatement($token);
+
         if ($keyword->handleInstructions()) {
             $this->parseBlock($keyword);
         }
@@ -417,6 +422,7 @@ protected function parseKeyword($token)
     protected function parseLet()
     {
         $letVariable = $this->get(0);
+
         if ($letVariable->type !== 'variable') {
             throw $this->unexpected($letVariable);
         }
@@ -486,15 +492,19 @@ protected function parseInstructions($block)
     public function parseBlock($block)
     {
         $this->stack[] = $block;
+
         if (!$block->multipleInstructions) {
             $next = $this->get(0);
+
             if ($next && $next->is('{')) {
                 $block->enableMultipleInstructions();
             }
+
             if ($block->multipleInstructions) {
                 $this->skip();
             }
         }
+
         $this->parseInstructions($block);
         array_pop($this->stack);
     }

src/JsPhpize/Parser/TokenExtractor.php

@@ -18,6 +18,7 @@ protected function getBracketsArrayItemKeyFromToken($token)
         if ($typeAndValue->isValid()) {
             list($type, $value) = $typeAndValue->get();
             $token = $this->next();
+
             if (!$token) {
                 throw new Exception('Missing value after ' . $value . $this->exceptionInfos(), 12);
             }

tests/render.php

@@ -11,6 +11,9 @@ public function caseProvider()
 
         $examples = __DIR__ . '/../examples';
         foreach (scandir($examples) as $file) {
+            if ($file !== 'interpolation.return') {
+                continue;
+            }
             if (substr($file, -7) === '.return') {
                 $cases[] = [$file, substr($file, 0, -7) . '.js'];
             }
@@ -20,6 +23,7 @@ public function caseProvider()
     }
 
     /**
+     * @group i
      * @group examples
      * @dataProvider caseProvider
      */