Added Berry Lexer (#2070)

2 files changed, 98 insertions, 0 deletions

diff --git a/pygments/lexers/_mapping.py b/pygments/lexers/_mapping.py
index 42e5667f..1aa2d146 100644
--- a/pygments/lexers/_mapping.py
+++ b/pygments/lexers/_mapping.py
@@ -59,6 +59,7 @@ LEXERS = {
     'BatchLexer': ('pygments.lexers.shell', 'Batchfile', ('batch', 'bat', 'dosbatch', 'winbatch'), ('*.bat', '*.cmd'), ('application/x-dos-batch',)),
     'BddLexer': ('pygments.lexers.bdd', 'Bdd', ('bdd',), ('*.feature',), ('text/x-bdd',)),
     'BefungeLexer': ('pygments.lexers.esoteric', 'Befunge', ('befunge',), ('*.befunge',), ('application/x-befunge',)),
+    'BerryLexer': ('pygments.lexers.berry', 'Berry', ('berry', 'be'), ('*.be',), ('text/x-berry', 'application/x-berry')),
     'BibTeXLexer': ('pygments.lexers.bibtex', 'BibTeX', ('bibtex', 'bib'), ('*.bib',), ('text/x-bibtex',)),
     'BlitzBasicLexer': ('pygments.lexers.basic', 'BlitzBasic', ('blitzbasic', 'b3d', 'bplus'), ('*.bb', '*.decls'), ('text/x-bb',)),
     'BlitzMaxLexer': ('pygments.lexers.basic', 'BlitzMax', ('blitzmax', 'bmax'), ('*.bmx',), ('text/x-bmx',)),
diff --git a/pygments/lexers/berry.py b/pygments/lexers/berry.py
new file mode 100644
index 00000000..d7525e98
--- /dev/null
+++ b/pygments/lexers/berry.py
@@ -0,0 +1,97 @@
+"""
+    pygments.lexers.berry
+    ~~~~~~~~~~~~~~~~~~~~~
+
+    Lexer for Berry.
+
+    :copyright: Copyright 2006-2022 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+import re
+from pygments.lexer import RegexLexer, words, default, include, bygroups
+from pygments.token import Text, Comment, Whitespace, Operator, Keyword, Name, String, Number, Punctuation
+
+__all__ = ['BerryLexer']
+
+line_re = re.compile('.*?\n')
+
+class BerryLexer(RegexLexer):
+    """
+    For `berry <http://github.com/berry-lang/berry>`_ source code.
+
+    .. versionadded:: 2.12.0
+    """    
+    name = 'Berry'
+    aliases = ['berry', 'be']
+    filenames = ['*.be']
+    mimetypes = ['text/x-berry', 'application/x-berry']
+
+    _name = r'\b[^\W\d]\w*'
+
+    tokens = {
+        'root': [
+            include('whitespace'),
+            include('numbers'),
+            include('keywords'),
+            (rf'(def)(\s+)({_name})', bygroups(Keyword.Declaration, Whitespace, Name.Function)),
+            (rf'\b(class)(\s+)({_name})', bygroups(Keyword.Declaration, Whitespace, Name.Class)),
+            (rf'\b(import)(\s+)({_name})', bygroups(Keyword.Namespace, Whitespace, Name.Namespace)),
+            include('expr')
+        ],
+        'expr': [
+            (r'[^\S\n]+', Whitespace),
+            (r'\.\.|[~!%^&*+=|?:<>/-]', Operator),
+            (r'[(){}\[\],.;]', Punctuation),
+            include('controls'),
+            include('builtins'),
+            include('funccall'),
+            include('member'),
+            include('name'),
+            include('strings')
+        ],
+        'whitespace': [
+            (r'\s+', Whitespace),
+            (r'#-(.|\n)*?-#', Comment.Multiline),
+            (r'#.*?$', Comment.Single)
+        ],
+        'keywords': [
+            (words((
+                'as', 'break', 'continue', 'import', 'static', 'self', 'super'), 
+                suffix=r'\b'), Keyword.Reserved),
+            (r'(true|false|nil)\b', Keyword.Constant),
+            (r'(var|def)\b', Keyword.Declaration)
+        ],
+        'controls': [
+            (words((
+                'if', 'elif', 'else', 'for', 'while', 'do', 'end', 'break', 
+                'continue', 'return', 'try', 'except', 'raise'),
+                suffix=r'\b'), Keyword)
+        ],
+        'builtins': [
+            (words((
+                'assert', 'bool', 'input', 'classname', 'classof', 'number', 'real',
+                'bytes', 'compile', 'map', 'list', 'int', 'isinstance', 'print',
+                'range', 'str', 'super', 'module', 'size', 'issubclass', 'open',
+                'file', 'type', 'call'), 
+                suffix=r'\b'), Name.Builtin)
+        ],
+        'numbers': [
+            (r'0[xX][a-fA-F0-9]+', Number.Hex),
+            (r'-?\d+', Number.Integer),
+            (r'(-?\d+\.?|\.\d)\d*([eE][+-]?\d+)?', Number.Float)
+        ],
+        'name': [
+            (_name, Name)
+        ],
+        'funccall': [
+            (rf'{_name}(?=\s*\()', Name.Function, '#pop')
+        ],
+        'member': [
+            (rf'(?<=\.){_name}\b(?!\()', Name.Attribute, '#pop')
+        ],
+        'strings': [
+            (r'"([^\\]|\\.)*?"', String.Double, '#pop'),
+            (r'\'([^\\]|\\.)*?\'', String.Single, '#pop')
+        ]
+    }