tree-sitter-dart/test/corpus/literals.txt

Dart grammar attempt for tree-sitter

========================
decimal integer literals
========================

123;
4;
50;

---

(program
  (expression_statement (decimal_integer_literal))
  (expression_statement (decimal_integer_literal))
  (expression_statement (decimal_integer_literal)))

====================
hex integer literals
====================

0xa_bcd_ef0;
0Xa_bcd_ef0;
0X8000;

---

(program
  (expression_statement (hex_integer_literal))
  (expression_statement (hex_integer_literal))
  (expression_statement (hex_integer_literal)))

===============================
floating point literals
===============================

4.23e9;
4.23e-9;
4.23e+9;
40.3e6;
40.3e-6;
1.234;
0.123456;
.12345;
1e4;
0.2e-2;
0.0e-4;
.2e-2;
5.4;
5.4e-10;

---

(program
  (expression_statement (decimal_floating_point_literal))
  (expression_statement (decimal_floating_point_literal))
  (expression_statement (decimal_floating_point_literal))
  (expression_statement (decimal_floating_point_literal))
  (expression_statement (decimal_floating_point_literal))
  (expression_statement (decimal_floating_point_literal))
  (expression_statement (decimal_floating_point_literal))
  (expression_statement (decimal_floating_point_literal))
  (expression_statement (decimal_floating_point_literal))
  (expression_statement (decimal_floating_point_literal))
  (expression_statement (decimal_floating_point_literal))
  (expression_statement (decimal_floating_point_literal))
  (expression_statement (decimal_floating_point_literal))
  (expression_statement (decimal_floating_point_literal)))

================
boolean literals
================

true;
false;

---

(program
  (expression_statement (true))
  (expression_statement (false)))

===============
string literals
===============

"";
"\"";
"This is a string";
"'";
'\n';

---

(program
  (expression_statement (string_literal))
  (expression_statement (string_literal (escape_sequence)))
  (expression_statement (string_literal))
  (expression_statement (string_literal))
  (expression_statement (string_literal (escape_sequence))))

=============
null literals
=============

null;

---

(program
  (expression_statement (null_literal)))

=============
multiline string literals with single quotes of same type inside
=============

''' 
# * stamp.nsec: nanoseconds since stamp_secs (in Python the variable is called 'nsecs')
''';

---

(program (expression_statement (string_literal)))

=============
adjacent string concatentation
=============

final str = 'a string'
            'another string';
final mixedStr = r'''(["'])((?:\\{2})*|(?:.*?[^\\](?:\\{2})*))\2|''' // with quotes.
        r'([^ ]+))';

---

(program 
  (final_builtin)
  (static_final_declaration_list (static_final_declaration (identifier) (string_literal))) 
  (final_builtin)
  (static_final_declaration_list (static_final_declaration (identifier) (string_literal (comment)))))



=============
complex string interpolation
=============

'ERROR: $error${'\n$stackTrace' ?? ''}';

---

(program 
  (expression_statement (string_literal 
    (template_substitution (identifier_dollar_escaped)) 
    (template_substitution 
      (if_null_expression 
        (string_literal (escape_sequence) (template_substitution (identifier_dollar_escaped))) 
        (string_literal))))))


=============
raw strings single
=============

r'\';
r'''\''';

---
(program
    (expression_statement (string_literal))
    (expression_statement (string_literal))
)

=============
raw strings double
=============

r"\";
r"""\""";

---

(program
    (expression_statement (string_literal))
    (expression_statement (string_literal))
)