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# -*- coding: utf-8 -*-
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"""
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pygments.lexers.csound
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~~~~~~~~~~~~~~~~~~~~~~
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Lexers for Csound languages.
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:copyright: Copyright 2006-2017 by the Pygments team, see AUTHORS.
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:license: BSD, see LICENSE for details.
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"""
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import re
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from pygments.lexer import RegexLexer, bygroups, default, include, using, words
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from pygments.token import Comment, Error, Keyword, Name, Number, Operator, Punctuation, \
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String, Text, Whitespace
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from pygments.lexers._csound_builtins import OPCODES, DEPRECATED_OPCODES
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from pygments.lexers.html import HtmlLexer
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from pygments.lexers.python import PythonLexer
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from pygments.lexers.scripting import LuaLexer
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__all__ = ['CsoundScoreLexer', 'CsoundOrchestraLexer', 'CsoundDocumentLexer']
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newline = (r'((?:(?:;|//).*)*)(\n)', bygroups(Comment.Single, Text))
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class CsoundLexer(RegexLexer):
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tokens = {
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'whitespace': [
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(r'[ \t]+', Text),
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(r'/[*](?:.|\n)*?[*]/', Comment.Multiline),
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(r'(?:;|//).*$', Comment.Single),
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(r'(\\)(\n)', bygroups(Whitespace, Text))
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],
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'preprocessor directives': [
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(r'#(?:e(?:nd(?:if)?|lse)\b|##)|@@?[ \t]*\d+', Comment.Preproc),
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(r'#include', Comment.Preproc, 'include directive'),
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(r'#[ \t]*define', Comment.Preproc, 'define directive'),
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(r'#(?:ifn?def|undef)\b', Comment.Preproc, 'macro directive')
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],
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'include directive': [
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include('whitespace'),
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(r'([^ \t]).*?\1', String, '#pop')
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],
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'define directive': [
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(r'\n', Text),
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include('whitespace'),
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(r'([A-Z_a-z]\w*)(\()', bygroups(Comment.Preproc, Punctuation),
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('#pop', 'macro parameter name list')),
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(r'[A-Z_a-z]\w*', Comment.Preproc, ('#pop', 'before macro body'))
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],
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'macro parameter name list': [
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include('whitespace'),
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(r'[A-Z_a-z]\w*', Comment.Preproc),
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(r"['#]", Punctuation),
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(r'\)', Punctuation, ('#pop', 'before macro body'))
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],
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'before macro body': [
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(r'\n', Text),
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include('whitespace'),
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(r'#', Punctuation, ('#pop', 'macro body'))
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],
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'macro body': [
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(r'(?:\\(?!#)|[^#\\]|\n)+', Comment.Preproc),
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(r'\\#', Comment.Preproc),
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(r'(?<!\\)#', Punctuation, '#pop')
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],
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'macro directive': [
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include('whitespace'),
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(r'[A-Z_a-z]\w*', Comment.Preproc, '#pop')
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],
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'macro uses': [
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(r'(\$[A-Z_a-z]\w*\.?)(\()', bygroups(Comment.Preproc, Punctuation),
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'macro parameter value list'),
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(r'\$[A-Z_a-z]\w*(?:\.|\b)', Comment.Preproc)
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],
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'macro parameter value list': [
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(r'(?:[^\'#"{()]|\{(?!\{))+', Comment.Preproc),
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(r"['#]", Punctuation),
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(r'"', String, 'macro parameter value quoted string'),
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(r'\{\{', String, 'macro parameter value braced string'),
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(r'\(', Comment.Preproc, 'macro parameter value parenthetical'),
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(r'\)', Punctuation, '#pop')
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],
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'macro parameter value quoted string': [
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(r"\\[#'()]", Comment.Preproc),
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(r"[#'()]", Error),
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include('quoted string')
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],
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'macro parameter value braced string': [
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(r"\\[#'()]", Comment.Preproc),
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(r"[#'()]", Error),
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include('braced string')
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],
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'macro parameter value parenthetical': [
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(r'(?:[^\\()]|\\\))+', Comment.Preproc),
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(r'\(', Comment.Preproc, '#push'),
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(r'\)', Comment.Preproc, '#pop')
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],
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'whitespace and macro uses': [
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include('whitespace'),
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include('macro uses')
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],
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'numbers': [
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(r'\d+[Ee][+-]?\d+|(\d+\.\d*|\d*\.\d+)([Ee][+-]?\d+)?', Number.Float),
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(r'(0[Xx])([0-9A-Fa-f]+)', bygroups(Keyword.Type, Number.Hex)),
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(r'\d+', Number.Integer)
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],
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'braced string': [
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# Do nothing. This must be defined in subclasses.
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]
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}
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class CsoundScoreLexer(CsoundLexer):
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"""
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For `Csound <https://csound.github.io>`_ scores.
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.. versionadded:: 2.1
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"""
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name = 'Csound Score'
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aliases = ['csound-score', 'csound-sco']
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filenames = ['*.sco']
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tokens = {
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'root': [
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(r'\n', Text),
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include('whitespace and macro uses'),
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include('preprocessor directives'),
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(r'[abCdefiqstvxy]', Keyword),
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# There is also a w statement that is generated internally and should not be
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# used; see https://github.com/csound/csound/issues/750.
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(r'z', Keyword.Constant),
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# z is a constant equal to 800,000,000,000. 800 billion seconds is about
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# 25,367.8 years. See also
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# https://csound.github.io/docs/manual/ScoreTop.html and
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# https://github.com/csound/csound/search?q=stof+path%3AEngine+filename%3Asread.c.
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(r'([nNpP][pP])(\d+)', bygroups(Keyword, Number.Integer)),
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(r'[mn]', Keyword, 'mark statement'),
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include('numbers'),
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(r'[!+\-*/^%&|<>#~.]', Operator),
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(r'[()\[\]]', Punctuation),
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(r'"', String, 'quoted string'),
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(r'\{', Comment.Preproc, 'loop after left brace'),
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],
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'mark statement': [
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include('whitespace and macro uses'),
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(r'[A-Z_a-z]\w*', Name.Label),
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(r'\n', Text, '#pop')
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],
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'quoted string': [
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(r'"', String, '#pop'),
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(r'[^"$]+', String),
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include('macro uses'),
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(r'[$]', String)
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],
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'loop after left brace': [
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include('whitespace and macro uses'),
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(r'\d+', Number.Integer, ('#pop', 'loop after repeat count')),
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],
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'loop after repeat count': [
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include('whitespace and macro uses'),
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(r'[A-Z_a-z]\w*', Comment.Preproc, ('#pop', 'loop'))
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],
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'loop': [
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(r'\}', Comment.Preproc, '#pop'),
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include('root')
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],
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# Braced strings are not allowed in Csound scores, but this is needed
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# because the superclass includes it.
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'braced string': [
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(r'\}\}', String, '#pop'),
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(r'[^}]|\}(?!\})', String)
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]
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}
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class CsoundOrchestraLexer(CsoundLexer):
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"""
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For `Csound <https://csound.github.io>`_ orchestras.
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.. versionadded:: 2.1
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"""
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name = 'Csound Orchestra'
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aliases = ['csound', 'csound-orc']
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filenames = ['*.orc', '*.udo']
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user_defined_opcodes = set()
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def opcode_name_callback(lexer, match):
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opcode = match.group(0)
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lexer.user_defined_opcodes.add(opcode)
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yield match.start(), Name.Function, opcode
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def name_callback(lexer, match):
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name = match.group(1)
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if name in OPCODES or name in DEPRECATED_OPCODES:
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yield match.start(), Name.Builtin, name
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if match.group(2):
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yield match.start(2), Punctuation, match.group(2)
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yield match.start(3), Keyword.Type, match.group(3)
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elif name in lexer.user_defined_opcodes:
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yield match.start(), Name.Function, name
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else:
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nameMatch = re.search(r'^(g?[afikSw])(\w+)', name)
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if nameMatch:
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yield nameMatch.start(1), Keyword.Type, nameMatch.group(1)
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yield nameMatch.start(2), Name, nameMatch.group(2)
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else:
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yield match.start(), Name, name
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if match.group(2):
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yield match.start(2), Punctuation, match.group(2)
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yield match.start(3), Name, match.group(3)
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tokens = {
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'root': [
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(r'\n', Text),
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(r'^([ \t]*)(\w+)(:)(?:[ \t]+|$)', bygroups(Text, Name.Label, Punctuation)),
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include('whitespace and macro uses'),
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include('preprocessor directives'),
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(r'\binstr\b', Keyword.Declaration, 'instrument numbers and identifiers'),
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(r'\bopcode\b', Keyword.Declaration, 'after opcode keyword'),
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(r'\b(?:end(?:in|op))\b', Keyword.Declaration),
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include('partial statements')
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],
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'partial statements': [
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(r'\b(?:0dbfs|A4|k(?:r|smps)|nchnls(?:_i)?|sr)\b', Name.Variable.Global),
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include('numbers'),
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(r'\+=|-=|\*=|/=|<<|>>|<=|>=|==|!=|&&|\|\||[~¬]|[=!+\-*/^%&|<>#?:]', Operator),
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(r'[(),\[\]]', Punctuation),
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(r'"', String, 'quoted string'),
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(r'\{\{', String, 'braced string'),
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(words((
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'do', 'else', 'elseif', 'endif', 'enduntil', 'fi', 'if', 'ithen', 'kthen',
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'od', 'then', 'until', 'while',
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), prefix=r'\b', suffix=r'\b'), Keyword),
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(words(('return', 'rireturn'), prefix=r'\b', suffix=r'\b'), Keyword.Pseudo),
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(r'\b[ik]?goto\b', Keyword, 'goto label'),
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(r'\b(r(?:einit|igoto)|tigoto)(\(|\b)', bygroups(Keyword.Pseudo, Punctuation),
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'goto label'),
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(r'\b(c(?:g|in?|k|nk?)goto)(\(|\b)', bygroups(Keyword.Pseudo, Punctuation),
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('goto label', 'goto argument')),
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(r'\b(timout)(\(|\b)', bygroups(Keyword.Pseudo, Punctuation),
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('goto label', 'goto argument', 'goto argument')),
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(r'\b(loop_[gl][et])(\(|\b)', bygroups(Keyword.Pseudo, Punctuation),
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('goto label', 'goto argument', 'goto argument', 'goto argument')),
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(r'\bprintk?s\b', Name.Builtin, 'prints opcode'),
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(r'\b(?:readscore|scoreline(?:_i)?)\b', Name.Builtin, 'Csound score opcode'),
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(r'\bpyl?run[it]?\b', Name.Builtin, 'Python opcode'),
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(r'\blua_(?:exec|opdef)\b', Name.Builtin, 'Lua opcode'),
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(r'\bp\d+\b', Name.Variable.Instance),
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(r'\b([A-Z_a-z]\w*)(?:(:)([A-Za-z]))?\b', name_callback)
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],
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'instrument numbers and identifiers': [
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include('whitespace and macro uses'),
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(r'\d+|[A-Z_a-z]\w*', Name.Function),
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(r'[+,]', Punctuation),
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(r'\n', Text, '#pop')
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],
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'after opcode keyword': [
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include('whitespace and macro uses'),
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(r'[A-Z_a-z]\w*', opcode_name_callback, ('#pop', 'opcode type signatures')),
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(r'\n', Text, '#pop')
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],
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'opcode type signatures': [
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include('whitespace and macro uses'),
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# https://github.com/csound/csound/search?q=XIDENT+path%3AEngine+filename%3Acsound_orc.lex
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(r'0|[afijkKoOpPStV\[\]]+', Keyword.Type),
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(r',', Punctuation),
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(r'\n', Text, '#pop')
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],
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'quoted string': [
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(r'"', String, '#pop'),
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(r'[^\\"$%)]+', String),
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include('macro uses'),
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include('escape sequences'),
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include('format specifiers'),
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(r'[\\$%)]', String)
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],
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'braced string': [
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(r'\}\}', String, '#pop'),
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(r'(?:[^\\%)}]|\}(?!\}))+', String),
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include('escape sequences'),
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include('format specifiers'),
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(r'[\\%)]', String)
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],
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'escape sequences': [
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# https://github.com/csound/csound/search?q=unquote_string+path%3AEngine+filename%3Acsound_orc_compile.c
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(r'\\(?:[\\abnrt"]|[0-7]{1,3})', String.Escape)
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],
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|
# Format specifiers are highlighted in all strings, even though only
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|
# fprintks https://csound.github.io/docs/manual/fprintks.html
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# fprints https://csound.github.io/docs/manual/fprints.html
|
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|
# printf/printf_i https://csound.github.io/docs/manual/printf.html
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|
# printks https://csound.github.io/docs/manual/printks.html
|
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|
# prints https://csound.github.io/docs/manual/prints.html
|
|
|
# sprintf https://csound.github.io/docs/manual/sprintf.html
|
|
|
# sprintfk https://csound.github.io/docs/manual/sprintfk.html
|
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# work with strings that contain format specifiers. In addition, these
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|
|
# opcodes’ handling of format specifiers is inconsistent:
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|
|
# - fprintks, fprints, printks, and prints do accept %a and %A
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|
|
# specifiers, but can’t accept %s specifiers.
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|
|
# - printf, printf_i, sprintf, and sprintfk don’t accept %a and %A
|
|
|
# specifiers, but can accept %s specifiers.
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|
|
# See https://github.com/csound/csound/issues/747 for more information.
|
|
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'format specifiers': [
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|
|
(r'%[#0\- +]*\d*(?:\.\d+)?[diuoxXfFeEgGaAcs]', String.Interpol),
|
|
|
(r'%%', String.Escape)
|
|
|
],
|
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|
|
|
|
'goto argument': [
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|
|
include('whitespace and macro uses'),
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|
|
(r',', Punctuation, '#pop'),
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|
include('partial statements')
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|
],
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|
|
'goto label': [
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|
|
include('whitespace and macro uses'),
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|
|
(r'\w+', Name.Label, '#pop'),
|
|
|
default('#pop')
|
|
|
],
|
|
|
|
|
|
'prints opcode': [
|
|
|
include('whitespace and macro uses'),
|
|
|
(r'"', String, 'prints quoted string'),
|
|
|
default('#pop')
|
|
|
],
|
|
|
'prints quoted string': [
|
|
|
(r'\\\\[aAbBnNrRtT]', String.Escape),
|
|
|
(r'%[!nNrRtT]|[~^]{1,2}', String.Escape),
|
|
|
include('quoted string')
|
|
|
],
|
|
|
|
|
|
'Csound score opcode': [
|
|
|
include('whitespace and macro uses'),
|
|
|
(r'\{\{', String, 'Csound score'),
|
|
|
(r'\n', Text, '#pop')
|
|
|
],
|
|
|
'Csound score': [
|
|
|
(r'\}\}', String, '#pop'),
|
|
|
(r'([^}]+)|\}(?!\})', using(CsoundScoreLexer))
|
|
|
],
|
|
|
|
|
|
'Python opcode': [
|
|
|
include('whitespace and macro uses'),
|
|
|
(r'\{\{', String, 'Python'),
|
|
|
(r'\n', Text, '#pop')
|
|
|
],
|
|
|
'Python': [
|
|
|
(r'\}\}', String, '#pop'),
|
|
|
(r'([^}]+)|\}(?!\})', using(PythonLexer))
|
|
|
],
|
|
|
|
|
|
'Lua opcode': [
|
|
|
include('whitespace and macro uses'),
|
|
|
(r'\{\{', String, 'Lua'),
|
|
|
(r'\n', Text, '#pop')
|
|
|
],
|
|
|
'Lua': [
|
|
|
(r'\}\}', String, '#pop'),
|
|
|
(r'([^}]+)|\}(?!\})', using(LuaLexer))
|
|
|
]
|
|
|
}
|
|
|
|
|
|
|
|
|
class CsoundDocumentLexer(RegexLexer):
|
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"""
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For `Csound <https://csound.github.io>`_ documents.
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.. versionadded:: 2.1
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"""
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name = 'Csound Document'
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aliases = ['csound-document', 'csound-csd']
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filenames = ['*.csd']
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# These tokens are based on those in XmlLexer in pygments/lexers/html.py. Making
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# CsoundDocumentLexer a subclass of XmlLexer rather than RegexLexer may seem like a
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# better idea, since Csound Document files look like XML files. However, Csound
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# Documents can contain Csound comments (preceded by //, for example) before and
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# after the root element, unescaped bitwise AND & and less than < operators, etc. In
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# other words, while Csound Document files look like XML files, they may not actually
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# be XML files.
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tokens = {
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'root': [
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(r'/[*](.|\n)*?[*]/', Comment.Multiline),
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(r'(?:;|//).*$', Comment.Single),
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(r'[^/;<]+|/(?!/)', Text),
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(r'<\s*CsInstruments', Name.Tag, ('orchestra', 'tag')),
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(r'<\s*CsScore', Name.Tag, ('score', 'tag')),
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(r'<\s*[Hh][Tt][Mm][Ll]', Name.Tag, ('HTML', 'tag')),
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(r'<\s*[\w:.-]+', Name.Tag, 'tag'),
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(r'<\s*/\s*[\w:.-]+\s*>', Name.Tag)
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],
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'orchestra': [
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(r'<\s*/\s*CsInstruments\s*>', Name.Tag, '#pop'),
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(r'(.|\n)+?(?=<\s*/\s*CsInstruments\s*>)', using(CsoundOrchestraLexer))
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],
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'score': [
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(r'<\s*/\s*CsScore\s*>', Name.Tag, '#pop'),
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(r'(.|\n)+?(?=<\s*/\s*CsScore\s*>)', using(CsoundScoreLexer))
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],
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'HTML': [
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(r'<\s*/\s*[Hh][Tt][Mm][Ll]\s*>', Name.Tag, '#pop'),
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(r'(.|\n)+?(?=<\s*/\s*[Hh][Tt][Mm][Ll]\s*>)', using(HtmlLexer))
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],
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'tag': [
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(r'\s+', Text),
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(r'[\w.:-]+\s*=', Name.Attribute, 'attr'),
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(r'/?\s*>', Name.Tag, '#pop')
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],
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'attr': [
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(r'\s+', Text),
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(r'".*?"', String, '#pop'),
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(r"'.*?'", String, '#pop'),
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(r'[^\s>]+', String, '#pop')
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]
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}
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