1 files changed, 226 insertions, 0 deletions
diff --git a/venv/lib/python3.11/site-packages/pygments/lexers/lilypond.py b/venv/lib/python3.11/site-packages/pygments/lexers/lilypond.py
new file mode 100644
index 0000000..6b4ed20
--- /dev/null
+++ b/venv/lib/python3.11/site-packages/pygments/lexers/lilypond.py
@@ -0,0 +1,226 @@
+"""
+    pygments.lexers.lilypond
+    ~~~~~~~~~~~~~~~~~~~~~~~~
+
+    Lexer for LilyPond.
+
+    :copyright: Copyright 2006-2023 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+import re
+
+from pygments.lexer import bygroups, default, inherit, words
+from pygments.lexers.lisp import SchemeLexer
+from pygments.lexers._lilypond_builtins import (
+    keywords, pitch_language_names, clefs, scales, repeat_types, units,
+    chord_modifiers, pitches, music_functions, dynamics, articulations,
+    music_commands, markup_commands, grobs, translators, contexts,
+    context_properties, grob_properties, scheme_functions, paper_variables,
+    header_variables
+)
+from pygments.token import Token
+
+__all__ = ["LilyPondLexer"]
+
+# In LilyPond, (unquoted) name tokens only contain letters, hyphens,
+# and underscores, where hyphens and underscores must not start or end
+# a name token.
+#
+# Note that many of the entities listed as LilyPond built-in keywords
+# (in file `_lilypond_builtins.py`) are only valid if surrounded by
+# double quotes, for example, 'hufnagel-fa1'. This means that
+# `NAME_END_RE` doesn't apply to such entities in valid LilyPond code.
+NAME_END_RE = r"(?=\d|[^\w\-]|[\-_][\W\d])"
+
+def builtin_words(names, backslash, suffix=NAME_END_RE):
+    prefix = r"[\-_^]?"
+    if backslash == "mandatory":
+        prefix += r"\\"
+    elif backslash == "optional":
+        prefix += r"\\?"
+    else:
+        assert backslash == "disallowed"
+    return words(names, prefix, suffix)
+
+
+class LilyPondLexer(SchemeLexer):
+    """
+    Lexer for input to LilyPond, a text-based music typesetter.
+
+    .. important::
+
+       This lexer is meant to be used in conjunction with the ``lilypond`` style.
+
+    .. versionadded:: 2.11
+    """
+    name = 'LilyPond'
+    url = 'https://lilypond.org'
+    aliases = ['lilypond']
+    filenames = ['*.ly']
+    mimetypes = []
+
+    flags = re.DOTALL | re.MULTILINE
+
+    # Because parsing LilyPond input is very tricky (and in fact
+    # impossible without executing LilyPond when there is Scheme
+    # code in the file), this lexer does not try to recognize
+    # lexical modes. Instead, it catches the most frequent pieces
+    # of syntax, and, above all, knows about many kinds of builtins.
+
+    # In order to parse embedded Scheme, this lexer subclasses the SchemeLexer.
+    # It redefines the 'root' state entirely, and adds a rule for #{ #}
+    # to the 'value' state. The latter is used to parse a Scheme expression
+    # after #.
+
+    def get_tokens_unprocessed(self, text):
+        """Highlight Scheme variables as LilyPond builtins when applicable."""
+        for index, token, value in super().get_tokens_unprocessed(text):
+            if token is Token.Name.Function or token is Token.Name.Variable:
+                if value in scheme_functions:
+                    token = Token.Name.Builtin.SchemeFunction
+            elif token is Token.Name.Builtin:
+                token = Token.Name.Builtin.SchemeBuiltin
+            yield index, token, value
+
+    tokens = {
+        "root": [
+            # Whitespace.
+            (r"\s+", Token.Text.Whitespace),
+
+            # Multi-line comments. These are non-nestable.
+            (r"%\{.*?%\}", Token.Comment.Multiline),
+
+            # Simple comments.
+            (r"%.*?$", Token.Comment.Single),
+
+            # End of embedded LilyPond in Scheme.
+            (r"#\}", Token.Punctuation, "#pop"),
+
+            # Embedded Scheme, starting with # ("delayed"),
+            # or $ (immediate). #@ and and $@ are the lesser known
+            # "list splicing operators".
+            (r"[#$]@?", Token.Punctuation, "value"),
+
+            # Any kind of punctuation:
+            # - sequential music: { },
+            # - parallel music: << >>,
+            # - voice separator: << \\ >>,
+            # - chord: < >,
+            # - bar check: |,
+            # - dot in nested properties: \revert NoteHead.color,
+            # - equals sign in assignments and lists for various commands:
+            #   \override Stem.color = red,
+            # - comma as alternative syntax for lists: \time 3,3,2 4/4,
+            # - colon in tremolos: c:32,
+            # - double hyphen and underscore in lyrics: li -- ly -- pond __
+            #   (which must be preceded by ASCII whitespace)
+            (r"""(?x)
+               \\\\
+               | (?<= \s ) (?: -- | __ )
+               | [{}<>=.,:|]
+              """, Token.Punctuation),
+
+            # Pitches, with optional octavation marks, octave check,
+            # and forced or cautionary accidental.
+            (words(pitches, suffix=r"=?[',]*!?\??" + NAME_END_RE), Token.Pitch),
+
+            # Strings, optionally with direction specifier.
+            (r'[\-_^]?"', Token.String, "string"),
+
+            # Numbers.
+            (r"-?\d+\.\d+", Token.Number.Float), # 5. and .5 are not allowed
+            (r"-?\d+/\d+", Token.Number.Fraction),
+            # Integers, or durations with optional augmentation dots.
+            # We have no way to distinguish these, so we highlight
+            # them all as numbers.
+            #
+            # Normally, there is a space before the integer (being an
+            # argument to a music function), which we check here.  The
+            # case without a space is handled below (as a fingering
+            # number).
+            (r"""(?x)
+               (?<= \s ) -\d+
+               | (?: (?: \d+ | \\breve | \\longa | \\maxima )
+                     \.* )
+              """, Token.Number),
+            # Separates duration and duration multiplier highlighted as fraction.
+            (r"\*", Token.Number),
+
+            # Ties, slurs, manual beams.
+            (r"[~()[\]]", Token.Name.Builtin.Articulation),
+
+            # Predefined articulation shortcuts. A direction specifier is
+            # required here.
+            (r"[\-_^][>^_!.\-+]", Token.Name.Builtin.Articulation),
+
+            # Fingering numbers, string numbers.
+            (r"[\-_^]?\\?\d+", Token.Name.Builtin.Articulation),
+
+            # Builtins.
+            (builtin_words(keywords, "mandatory"), Token.Keyword),
+            (builtin_words(pitch_language_names, "disallowed"), Token.Name.PitchLanguage),
+            (builtin_words(clefs, "disallowed"), Token.Name.Builtin.Clef),
+            (builtin_words(scales, "mandatory"), Token.Name.Builtin.Scale),
+            (builtin_words(repeat_types, "disallowed"), Token.Name.Builtin.RepeatType),
+            (builtin_words(units, "mandatory"), Token.Number),
+            (builtin_words(chord_modifiers, "disallowed"), Token.ChordModifier),
+            (builtin_words(music_functions, "mandatory"), Token.Name.Builtin.MusicFunction),
+            (builtin_words(dynamics, "mandatory"), Token.Name.Builtin.Dynamic),
+            # Those like slurs that don't take a backslash are covered above.
+            (builtin_words(articulations, "mandatory"), Token.Name.Builtin.Articulation),
+            (builtin_words(music_commands, "mandatory"), Token.Name.Builtin.MusicCommand),
+            (builtin_words(markup_commands, "mandatory"), Token.Name.Builtin.MarkupCommand),
+            (builtin_words(grobs, "disallowed"), Token.Name.Builtin.Grob),
+            (builtin_words(translators, "disallowed"), Token.Name.Builtin.Translator),
+            # Optional backslash because of \layout { \context { \Score ... } }.
+            (builtin_words(contexts, "optional"), Token.Name.Builtin.Context),
+            (builtin_words(context_properties, "disallowed"), Token.Name.Builtin.ContextProperty),
+            (builtin_words(grob_properties, "disallowed"),
+             Token.Name.Builtin.GrobProperty,
+             "maybe-subproperties"),
+            # Optional backslashes here because output definitions are wrappers
+            # around modules.  Concretely, you can do, e.g.,
+            # \paper { oddHeaderMarkup = \evenHeaderMarkup }
+            (builtin_words(paper_variables, "optional"), Token.Name.Builtin.PaperVariable),
+            (builtin_words(header_variables, "optional"), Token.Name.Builtin.HeaderVariable),
+
+            # Other backslashed-escaped names (like dereferencing a
+            # music variable), possibly with a direction specifier.
+            (r"[\-_^]?\\.+?" + NAME_END_RE, Token.Name.BackslashReference),
+
+            # Definition of a variable. Support assignments to alist keys
+            # (myAlist.my-key.my-nested-key = \markup \spam \eggs).
+            (r"""(?x)
+               (?: [^\W\d] | - )+
+               (?= (?: [^\W\d] | [\-.] )* \s* = )
+              """, Token.Name.Lvalue),
+
+            # Virtually everything can appear in markup mode, so we highlight
+            # as text.  Try to get a complete word, or we might wrongly lex
+            # a suffix that happens to be a builtin as a builtin (e.g., "myStaff").
+            (r"([^\W\d]|-)+?" + NAME_END_RE, Token.Text),
+            (r".", Token.Text),
+        ],
+        "string": [
+            (r'"', Token.String, "#pop"),
+            (r'\\.', Token.String.Escape),
+            (r'[^\\"]+', Token.String),
+        ],
+        "value": [
+            # Scan a LilyPond value, then pop back since we had a
+            # complete expression.
+            (r"#\{", Token.Punctuation, ("#pop", "root")),
+            inherit,
+        ],
+        # Grob subproperties are undeclared and it would be tedious
+        # to maintain them by hand. Instead, this state allows recognizing
+        # everything that looks like a-known-property.foo.bar-baz as
+        # one single property name.
+        "maybe-subproperties": [
+            (r"\s+", Token.Text.Whitespace),
+            (r"(\.)((?:[^\W\d]|-)+?)" + NAME_END_RE,
+             bygroups(Token.Punctuation, Token.Name.Builtin.GrobProperty)),
+            default("#pop"),
+        ]
+    }