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env/lib/python3.11/site-packages/pygments/lexers/meson.py

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+"""
+    pygments.lexers.meson
+    ~~~~~~~~~~~~~~~~~~~~~
+
+    Pygments lexer for the Meson build system
+
+    :copyright: Copyright 2006-2024 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+from pygments.lexer import RegexLexer, words, include
+from pygments.token import Comment, Name, Number, Punctuation, Operator, \
+    Keyword, String, Whitespace
+
+__all__ = ['MesonLexer']
+
+
+class MesonLexer(RegexLexer):
+    """Meson language lexer.
+
+    The grammar definition use to transcribe the syntax was retrieved from
+    https://mesonbuild.com/Syntax.html#grammar for version 0.58.
+    Some of those definitions are improperly transcribed, so the Meson++
+    implementation was also checked: https://github.com/dcbaker/meson-plus-plus.
+    """
+
+    # TODO String interpolation @VARNAME@ inner matches
+    # TODO keyword_arg: value inner matches
+
+    name = 'Meson'
+    url = 'https://mesonbuild.com/'
+    aliases = ['meson', 'meson.build']
+    filenames = ['meson.build', 'meson_options.txt']
+    mimetypes = ['text/x-meson']
+    version_added = '2.10'
+
+    tokens = {
+        'root': [
+            (r'#.*?$', Comment),
+            (r"'''.*'''", String.Single),
+            (r'[1-9][0-9]*', Number.Integer),
+            (r'0o[0-7]+', Number.Oct),
+            (r'0x[a-fA-F0-9]+', Number.Hex),
+            include('string'),
+            include('keywords'),
+            include('expr'),
+            (r'[a-zA-Z_][a-zA-Z_0-9]*', Name),
+            (r'\s+', Whitespace),
+        ],
+        'string': [
+            (r"[']{3}([']{0,2}([^\\']|\\(.|\n)))*[']{3}", String),
+            (r"'.*?(?<!\\)(\\\\)*?'", String),
+        ],
+        'keywords': [
+            (words((
+                'if',
+                'elif',
+                'else',
+                'endif',
+                'foreach',
+                'endforeach',
+                'break',
+                'continue',
+            ),
+                   suffix=r'\b'), Keyword),
+        ],
+        'expr': [
+            (r'(in|and|or|not)\b', Operator.Word),
+            (r'(\*=|/=|%=|\+]=|-=|==|!=|\+|-|=)', Operator),
+            (r'[\[\]{}:().,?]', Punctuation),
+            (words(('true', 'false'), suffix=r'\b'), Keyword.Constant),
+            include('builtins'),
+            (words((
+                'meson',
+                'build_machine',
+                'host_machine',
+                'target_machine',
+            ),
+                   suffix=r'\b'), Name.Variable.Magic),
+        ],
+        'builtins': [
+            # This list was extracted from the v0.58 reference manual
+            (words((
+                'add_global_arguments',
+                'add_global_link_arguments',
+                'add_languages',
+                'add_project_arguments',
+                'add_project_link_arguments',
+                'add_test_setup',
+                'assert',
+                'benchmark',
+                'both_libraries',
+                'build_target',
+                'configuration_data',
+                'configure_file',
+                'custom_target',
+                'declare_dependency',
+                'dependency',
+                'disabler',
+                'environment',
+                'error',
+                'executable',
+                'files',
+                'find_library',
+                'find_program',
+                'generator',
+                'get_option',
+                'get_variable',
+                'include_directories',
+                'install_data',
+                'install_headers',
+                'install_man',
+                'install_subdir',
+                'is_disabler',
+                'is_variable',
+                'jar',
+                'join_paths',
+                'library',
+                'message',
+                'project',
+                'range',
+                'run_command',
+                'set_variable',
+                'shared_library',
+                'shared_module',
+                'static_library',
+                'subdir',
+                'subdir_done',
+                'subproject',
+                'summary',
+                'test',
+                'vcs_tag',
+                'warning',
+            ),
+                   prefix=r'(?<!\.)',
+                   suffix=r'\b'), Name.Builtin),
+            (r'(?<!\.)import\b', Name.Namespace),
+        ],
+    }