=======================================
Complex: Variable access
=======================================

<?php

"{$test}";

---

(program
  (php_tag)
  (expression_statement
    (encapsed_string
      (variable_name
        (name)))))

=======================================
Complex: Disallow space between { and $
=======================================

<?php

"{ $test}";

---

(program
  (php_tag)
  (expression_statement
    (encapsed_string
      (string_content)
      (variable_name
        (name))
      (string_content))))

=========================================
Complex: PHP documentation tests
=========================================

<?php

"This is {$great}";
"This square is {$square->width}00 centimeters broad.";

// Works, quoted keys only work using the curly brace syntax
"This works: {$arr['key']}";
"This works: {$arr[4][3]}";

// Works. When using multi-dimensional arrays, always use braces around arrays
// when inside of strings
"This works: {$arr['foo'][3]}";

"This works: " . $arr['foo'][3];

"This works too: {$obj->values[3]->name}";

"This is the value of the var named $name: {${$name}}";

"This is the value of the var named by the return value of getName(): {${getName()}}";

"This is the value of the var named by the return value of \$object->getName(): {${$object->getName()}}";

// Won't work, outputs: This is the return value of getName(): {getName()}
"This is the return value of getName(): {getName()}";

"{$foo->$bar}\n";

"{$foo->{$baz[1]}}\n";

"I'd like an {${beers::softdrink}}\n";

"I'd like an {${beers::$ale}}\n";

---

(program
  (php_tag)
  (expression_statement
    (encapsed_string
      (string_content)
      (variable_name
        (name))))
  (expression_statement
    (encapsed_string
      (string_content)
      (member_access_expression
        (variable_name
          (name))
        (name))
      (string_content)))
  (comment)
  (expression_statement
    (encapsed_string
      (string_content)
      (subscript_expression
        (variable_name
          (name))
        (string
          (string_content)))))
  (expression_statement
    (encapsed_string
      (string_content)
      (subscript_expression
        (subscript_expression
          (variable_name
            (name))
          (integer))
        (integer))))
  (comment)
  (comment)
  (expression_statement
    (encapsed_string
      (string_content)
      (subscript_expression
        (subscript_expression
          (variable_name
            (name))
          (string
            (string_content)))
        (integer))))
  (expression_statement
    (binary_expression
      (encapsed_string
        (string_content))
      (subscript_expression
        (subscript_expression
          (variable_name
            (name))
          (string
            (string_content)))
        (integer))))
  (expression_statement
    (encapsed_string
      (string_content)
      (member_access_expression
        (subscript_expression
          (member_access_expression
            (variable_name
              (name))
            (name))
          (integer))
        (name))))
  (expression_statement
    (encapsed_string
      (string_content)
      (variable_name
        (name))
      (string_content)
      (dynamic_variable_name
        (variable_name
          (name)))))
  (expression_statement
    (encapsed_string
      (string_content)
      (dynamic_variable_name
        (function_call_expression
          (name)
          (arguments)))))
  (expression_statement
    (encapsed_string
      (string_content)
      (escape_sequence)
      (string_content)
      (dynamic_variable_name
        (member_call_expression
          (variable_name
            (name))
          (name)
          (arguments)))))
  (comment)
  (expression_statement
    (encapsed_string
      (string_content)))
  (expression_statement
    (encapsed_string
      (member_access_expression
        (variable_name
          (name))
        (variable_name
          (name)))
      (escape_sequence)))
  (expression_statement
    (encapsed_string
      (member_access_expression
        (variable_name
          (name))
        (subscript_expression
          (variable_name
            (name))
          (integer)))
      (escape_sequence)))
  (expression_statement
    (encapsed_string
      (string_content)
      (dynamic_variable_name
        (class_constant_access_expression
          (name)
          (name)))
      (escape_sequence)))
  (expression_statement
    (encapsed_string
      (string_content)
      (dynamic_variable_name
        (scoped_property_access_expression
          (name)
          (variable_name
            (name))))
      (escape_sequence))))

=======================================
Simple: Variable access
=======================================

<?php

"Hello $people, you're awesome!";
"hello ${a} world";

---

(program
  (php_tag)
  (expression_statement
    (encapsed_string
      (string_content)
      (variable_name
        (name))
      (string_content)))
  (expression_statement
    (encapsed_string
      (string_content)
      (dynamic_variable_name
        (name))
      (string_content))))

=========================================
Simple: Member and array access
=========================================
<?php

"$people->john drank some $juices[0] juice.".PHP_EOL;
"$people->john then said hello to $people->jane.".PHP_EOL;
"$people->john's wife greeted $people->robert.";
"The character at index -2 is $string[-2].";

---

(program
  (php_tag)
  (expression_statement
    (binary_expression
      (encapsed_string
        (member_access_expression
          (variable_name
            (name))
          (name))
        (string_content)
        (subscript_expression
          (variable_name
            (name))
          (integer))
        (string_content))
      (name)))
  (expression_statement
    (binary_expression
      (encapsed_string
        (member_access_expression
          (variable_name
            (name))
          (name))
        (string_content)
        (member_access_expression
          (variable_name
            (name))
          (name))
        (string_content))
      (name)))
  (expression_statement
    (encapsed_string
      (member_access_expression
        (variable_name
          (name))
        (name))
      (string_content)
      (member_access_expression
        (variable_name
          (name))
        (name))
      (string_content)))
  (expression_statement
    (encapsed_string
      (string_content)
      (subscript_expression
        (variable_name
          (name))
        (unary_op_expression
          (integer)))
      (string_content))))

=========================================
Corner cases
=========================================

<?php

"{";
"{\$";
"{ $";
"/a";
"#";
"//";
"/*";
"/* text *#//";
"/**/";
"// # /**/";
"\\";
"\{";
"";
"\$notavar";
"\\\\\$notavar";
"\\\{$embedexp}";
"#x$var";
" # x $var#x";
"sometext$var";
"{$var::get()}";
"Test $var->tester- Hello";
" # x {$var->prop["key:"."key: {$var->func("arg")}"]}# x";
"hello \0 world";
"hello ${"a"."b"} world";
"$$$$$$$$$$$$$a";
"{$$$$$$$$b}";
"\{$";
"${a}[";
"\u{$a}";

---

(program
  (php_tag)
  (expression_statement
    (encapsed_string
      (string_content)))
  (expression_statement
    (encapsed_string
      (string_content)
      (escape_sequence)))
  (expression_statement
    (encapsed_string
      (string_content)))
  (expression_statement
    (encapsed_string
      (string_content)))
  (expression_statement
    (encapsed_string
      (string_content)))
  (expression_statement
    (encapsed_string
      (string_content)))
  (expression_statement
    (encapsed_string
      (string_content)))
  (expression_statement
    (encapsed_string
      (string_content)))
  (expression_statement
    (encapsed_string
      (string_content)))
  (expression_statement
    (encapsed_string
      (string_content)))
  (expression_statement
    (encapsed_string
      (escape_sequence)))
  (expression_statement
    (encapsed_string
      (string_content)))
  (expression_statement
    (encapsed_string))
  (expression_statement
    (encapsed_string
      (escape_sequence)
      (string_content)))
  (expression_statement
    (encapsed_string
      (escape_sequence)
      (escape_sequence)
      (escape_sequence)
      (string_content)))
  (expression_statement
    (encapsed_string
      (escape_sequence)
      (string_content)
      (variable_name
        (name))
      (string_content)))
  (expression_statement
    (encapsed_string
      (string_content)
      (variable_name
        (name))))
  (expression_statement
    (encapsed_string
      (string_content)
      (variable_name
        (name))
      (string_content)))
  (expression_statement
    (encapsed_string
      (string_content)
      (variable_name
        (name))))
  (expression_statement
    (encapsed_string
      (scoped_call_expression
        (variable_name
          (name))
        (name)
        (arguments))))
  (expression_statement
    (encapsed_string
      (string_content)
      (member_access_expression
        (variable_name
          (name))
        (name))
      (string_content)))
  (expression_statement
    (encapsed_string
      (string_content)
      (subscript_expression
        (member_access_expression
          (variable_name
            (name))
          (name))
        (binary_expression
          (encapsed_string
            (string_content))
          (encapsed_string
            (string_content)
            (member_call_expression
              (variable_name
                (name))
              (name)
              (arguments
                (argument
                  (encapsed_string
                    (string_content))))))))
      (string_content)))
  (expression_statement
    (encapsed_string
      (string_content)
      (escape_sequence)
      (string_content)))
  (expression_statement
    (encapsed_string
      (string_content)
      (dynamic_variable_name
        (binary_expression
          (encapsed_string
            (string_content))
          (encapsed_string
            (string_content))))
      (string_content)))
  (expression_statement
    (encapsed_string
      (string_content)
      (variable_name
        (name))))
  (expression_statement
    (encapsed_string
      (dynamic_variable_name
        (dynamic_variable_name
          (dynamic_variable_name
            (dynamic_variable_name
              (dynamic_variable_name
                (dynamic_variable_name
                  (dynamic_variable_name
                    (variable_name
                      (name)))))))))))
  (expression_statement
    (encapsed_string
      (string_content)))
  (expression_statement
    (encapsed_string
      (dynamic_variable_name
        (name))
      (string_content)))
  (expression_statement
    (encapsed_string
      (string_content)
      (variable_name
        (name)))))

=========================================
Single quoted
=========================================

<?php

'this is a simple string';
'You can also have embedded newlines in
strings this way as it is
okay to do';
'Arnold once said: "I\'ll be back"';
'You deleted C:\\*.*?';
'You deleted C:\*.*?';
'This will not expand: \n a newline';
'Variables do not $expand $either';
'socket://';
'#valid regexp#';
'hello#world';
'hello//world';
'//hello world';
'/*valid regexp*/';
'/*valid regexp';

---

(program
  (php_tag)
  (expression_statement
    (string
      (string_content)))
  (expression_statement
    (string
      (string_content)))
  (expression_statement
    (string
      (string_content)
      (escape_sequence)
      (string_content)))
  (expression_statement
    (string
      (string_content)
      (escape_sequence)
      (string_content)))
  (expression_statement
    (string
      (string_content)))
  (expression_statement
    (string
      (string_content)))
  (expression_statement
    (string
      (string_content)))
  (expression_statement
    (string
      (string_content)))
  (expression_statement
    (string
      (string_content)))
  (expression_statement
    (string
      (string_content)))
  (expression_statement
    (string
      (string_content)))
  (expression_statement
    (string
      (string_content)))
  (expression_statement
    (string
      (string_content)))
  (expression_statement
    (string
      (string_content))))

=========================================
Bug: #113
=========================================

<?php
"$b'";
"'";

---

(program
  (php_tag)
  (expression_statement
    (encapsed_string
      (variable_name
        (name))
      (string_content)))
  (expression_statement
    (encapsed_string
      (string_content))))

==========================
Heredocs
==========================

<?php

<<<HERE
foo #{bar}
HERE;

<<<  HERE
foo #{bar}
HERE;

// Allow Heredoc as function argument
read(<<<  HERE
foo #{bar}
HERE);

read(<<<  HERE
foo #{bar}
HERE , true);

<<<EOF
{$ms_files_rewriting}
EOF;

<<<EOF
dasdf
asdfasdf
$asdfasdfa
$a->test
{$b->c()[0]}
asdfasdf
EOF;

<<<EOL
    {";
EOL;

<<<EOL
    {\$";
EOL;

<<<EOL
    { $";
EOL;

<<<EOL
    /a";
EOL;

<<<EOL
    #";
EOL;

<<<EOL
    //";
EOL;

<<<EOL
    /*";
EOL;

<<<EOL
    /* text *#//";
EOL;

<<<EOL
    /**/";
EOL;

<<<EOT
hello

world
EOT;

<<< EOF
EOF;

<<< EOF



EOF;

// this should not be parsed as valid but it is
<<<EOF EOF;

<<<EOT
 \$
EOT;

<<< EOF
E
EOF;

<<<EOF
String with null byte  with lagging letters
EOF;

<<<EOL
    <?php echo "Hello World"; ?>
EOL;


<<<EOL
    \u{$a};
    "\u{$a}";
EOL;

<<<EOL
    $b'
    "$b'"
EOL;

<<<"EOL"
    $b'
    "$b'"
EOL;

---

(program
  (php_tag)
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content))
      end_tag: (heredoc_end)))
  (comment)
  (expression_statement
    (function_call_expression
      function: (name)
      arguments: (arguments
        (argument
          (heredoc
            identifier: (heredoc_start)
            value: (heredoc_body
              (string_content))
            end_tag: (heredoc_end))))))
  (expression_statement
    (function_call_expression
      function: (name)
      arguments: (arguments
        (argument
          (heredoc
            identifier: (heredoc_start)
            value: (heredoc_body
              (string_content))
            end_tag: (heredoc_end)))
        (argument
          (boolean)))))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (variable_name
          (name)))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content)
        (string_content)
        (variable_name
          (name))
        (member_access_expression
          object: (variable_name
            (name))
          name: (name))
        (subscript_expression
          (member_call_expression
            object: (variable_name
              (name))
            name: (name)
            arguments: (arguments))
          (integer))
        (string_content))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content)
        (escape_sequence)
        (string_content))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content)
        (string_content))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      end_tag: (heredoc_end)))
  (comment)
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content)
        (escape_sequence))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content)
        (string_content)
        (variable_name
          (name))
        (string_content)
        (string_content)
        (string_content)
        (variable_name
          (name))
        (string_content))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content)
        (variable_name
          (name))
        (string_content)
        (string_content)
        (variable_name
          (name))
        (string_content))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content)
        (variable_name
          (name))
        (string_content)
        (string_content)
        (variable_name
          (name))
        (string_content))
      end_tag: (heredoc_end))))

==========================
Nowdocs
==========================

<?php

<<<'PHP'
<?php echo phpversion().PHP_SAPI;
PHP;

<<<'EOF'

EOF;

<<< 'EOF'

EOF;

<<< 'EOF'
EOF;

<<< 'EOF'



EOF;

// this should not be parsed as valid but it is
<<<'EOF' EOF;

<<< 'EOF'
\x0b, \x0c or \x0d
EOF;

<<< 'EOF'
\x0b
EOF;

<<< 'EOF'
\x0c
EOF;

<<< 'EOF'
\x0d
EOF;

<<< 'EOF'
This is a test

with multiple

     lines
EOF;

<<< 'EOF'
b'asdfasdf'
EOF;

<<< 'EOF'
$this->atlas?->go();
EOF;

---

(program
  (php_tag)
  (expression_statement
    (nowdoc
      identifier: (heredoc_start)
      value: (nowdoc_body
        (nowdoc_string))
      end_tag: (heredoc_end)))
  (expression_statement
    (nowdoc
      identifier: (heredoc_start)
      end_tag: (heredoc_end)))
  (expression_statement
    (nowdoc
      identifier: (heredoc_start)
      end_tag: (heredoc_end)))
  (expression_statement
    (nowdoc
      identifier: (heredoc_start)
      end_tag: (heredoc_end)))
  (expression_statement
    (nowdoc
      identifier: (heredoc_start)
      end_tag: (heredoc_end)))
  (comment)
  (expression_statement
    (nowdoc
      identifier: (heredoc_start)
      end_tag: (heredoc_end)))
  (expression_statement
    (nowdoc
      identifier: (heredoc_start)
      value: (nowdoc_body
        (nowdoc_string))
      end_tag: (heredoc_end)))
  (expression_statement
    (nowdoc
      identifier: (heredoc_start)
      value: (nowdoc_body
        (nowdoc_string))
      end_tag: (heredoc_end)))
  (expression_statement
    (nowdoc
      identifier: (heredoc_start)
      value: (nowdoc_body
        (nowdoc_string))
      end_tag: (heredoc_end)))
  (expression_statement
    (nowdoc
      identifier: (heredoc_start)
      value: (nowdoc_body
        (nowdoc_string))
      end_tag: (heredoc_end)))
  (expression_statement
    (nowdoc
      identifier: (heredoc_start)
      value: (nowdoc_body
        (nowdoc_string)
        (nowdoc_string)
        (nowdoc_string))
      end_tag: (heredoc_end)))
  (expression_statement
    (nowdoc
      identifier: (heredoc_start)
      value: (nowdoc_body
        (nowdoc_string))
      end_tag: (heredoc_end)))
  (expression_statement
    (nowdoc
      identifier: (heredoc_start)
      value: (nowdoc_body
        (nowdoc_string))
      end_tag: (heredoc_end))))

==========================
Here/Nowdoc with numbers in identifier
==========================

<?php

<<<_F00
This is a test.
_F00;

<<<"_F00"
This is a test.
_F00;

<<<'_F00'
This is a test.
_F00;

---

(program
  (php_tag)
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content))
      end_tag: (heredoc_end)))
  (expression_statement
    (heredoc
      identifier: (heredoc_start)
      value: (heredoc_body
        (string_content))
      end_tag: (heredoc_end)))
  (expression_statement
    (nowdoc
      identifier: (heredoc_start)
      value: (nowdoc_body
        (nowdoc_string))
      end_tag: (heredoc_end))))

==============================
Unicode escape sequences
==============================

<?php

"\u{61}"; // ASCII "a" - characters below U+007F just encode as ASCII, as it's UTF-8
"\u{FF}"; // y with diaeresis
"\u{ff}"; // case-insensitive
"\u{2603}"; // Unicode snowman
"\u{1F602}"; // FACE WITH TEARS OF JOY emoji
"\u{0000001F602}"; // Leading zeroes permitted

---

(program
  (php_tag)
  (expression_statement
    (encapsed_string
      (escape_sequence)))
  (comment)
  (expression_statement
    (encapsed_string
      (escape_sequence)))
  (comment)
  (expression_statement
    (encapsed_string
      (escape_sequence)))
  (comment)
  (expression_statement
    (encapsed_string
      (escape_sequence)))
  (comment)
  (expression_statement
    (encapsed_string
      (escape_sequence)))
  (comment)
  (expression_statement
    (encapsed_string
      (escape_sequence)))
  (comment))

==============================
Complex string
==============================

<?php
$var = "test";
if (preg_match('#([\w\(\)\.\,\;]|[`]{1})$#', $var)
    && preg_match('#^([\w\(\)\.\,\;`]|\\\--[\w]|[`]{1})#', $var)
) {
    echo "test";
}

---

(program
  (php_tag)
  (expression_statement
    (assignment_expression
      (variable_name
        (name))
      (encapsed_string
        (string_content))))
  (if_statement
    (parenthesized_expression
      (binary_expression
        (function_call_expression
          (name)
          (arguments
            (argument
              (string
                (string_content)))
            (argument
              (variable_name
                (name)))))
        (function_call_expression
          (name)
          (arguments
            (argument
              (string
                (string_content)
                (escape_sequence)
                (string_content)))
            (argument
              (variable_name
                (name)))))))
    (compound_statement
      (echo_statement
        (encapsed_string
          (string_content))))))