367 lines
12 KiB
Python
367 lines
12 KiB
Python
# -*- 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, Keyword, Name, Number, Operator, Punctuation, \
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String, Text
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from pygments.lexers._csound_builtins import 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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# Subclasses must define a 'single-line string' state.
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tokens = {
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'whitespace': [
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(r'[ \t]+', Text),
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(r'\\\n', Text),
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(r'/[*](.|\n)*?[*]/', Comment.Multiline)
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],
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'macro call': [
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(r'(\$\w+\.?)(\()', bygroups(Comment.Preproc, Punctuation),
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'function macro call'),
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(r'\$\w+(\.|\b)', Comment.Preproc)
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],
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'function macro call': [
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(r"((?:\\['\)]|[^'\)])+)(')", bygroups(Comment.Preproc, Punctuation)),
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(r"([^'\)]+)(\))", bygroups(Comment.Preproc, Punctuation), '#pop')
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],
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'whitespace or macro call': [
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include('whitespace'),
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include('macro call')
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],
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'preprocessor directives': [
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(r'#(e(nd(if)?|lse)|ifn?def|undef)\b|##', Comment.Preproc),
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(r'#include\b', Comment.Preproc, 'include'),
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(r'#[ \t]*define\b', Comment.Preproc, 'macro name'),
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(r'@+[ \t]*\d*', Comment.Preproc)
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],
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'include': [
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include('whitespace'),
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(r'"', String, 'single-line string')
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],
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'macro name': [
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include('whitespace'),
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(r'(\w+)(\()', bygroups(Comment.Preproc, Text),
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'function macro argument list'),
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(r'\w+', Comment.Preproc, 'object macro definition after name')
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],
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'object macro definition after name': [
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include('whitespace'),
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(r'#', Punctuation, 'object macro replacement text')
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],
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'object macro replacement text': [
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(r'(\\#|[^#])+', Comment.Preproc),
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(r'#', Punctuation, '#pop:3')
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],
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'function macro argument list': [
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(r"(\w+)(['#])", bygroups(Comment.Preproc, Punctuation)),
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(r'(\w+)(\))', bygroups(Comment.Preproc, Punctuation),
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'function macro definition after name')
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],
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'function macro definition after name': [
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(r'[ \t]+', Text),
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(r'#', Punctuation, 'function macro replacement text')
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],
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'function macro replacement text': [
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(r'(\\#|[^#])+', Comment.Preproc),
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(r'#', Punctuation, '#pop:4')
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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 <http://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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'partial statement': [
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include('preprocessor directives'),
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(r'\d+e[+-]?\d+|(\d+\.\d*|\d*\.\d+)(e[+-]?\d+)?', Number.Float),
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(r'0[xX][a-fA-F0-9]+', Number.Hex),
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(r'\d+', Number.Integer),
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(r'"', String, 'single-line string'),
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(r'[+\-*/%^!=<>|&#~.]', Operator),
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(r'[]()[]', Punctuation),
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(r'\w+', Comment.Preproc)
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],
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'statement': [
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include('whitespace or macro call'),
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newline + ('#pop',),
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include('partial statement')
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],
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'root': [
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newline,
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include('whitespace or macro call'),
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(r'[{}]', Punctuation, 'statement'),
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(r'[abefimq-tv-z]|[nN][pP]?', Keyword, 'statement')
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],
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'single-line 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 <http://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']
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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(0)
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if re.match('p\d+$', name) or name in OPCODES:
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yield match.start(), Name.Builtin, name
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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?[aikSw])(\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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tokens = {
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'label': [
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(r'\b(\w+)(:)', bygroups(Name.Label, Punctuation))
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],
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'partial expression': [
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include('preprocessor directives'),
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(r'\b(0dbfs|k(r|smps)|nchnls(_i)?|sr)\b', Name.Variable.Global),
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(r'\d+e[+-]?\d+|(\d+\.\d*|\d*\.\d+)(e[+-]?\d+)?', Number.Float),
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(r'0[xX][a-fA-F0-9]+', Number.Hex),
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(r'\d+', Number.Integer),
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(r'"', String, 'single-line string'),
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(r'\{\{', String, 'multi-line string'),
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(r'[+\-*/%^!=&|<>#~¬]', Operator),
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(r'[](),?:[]', Punctuation),
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(words((
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# Keywords
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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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# Opcodes that act as control structures
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'return', 'timout'
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), prefix=r'\b', suffix=r'\b'), Keyword),
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(words(('goto', 'igoto', 'kgoto', 'rigoto', 'tigoto'),
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prefix=r'\b', suffix=r'\b'), Keyword, 'goto label'),
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(words(('cggoto', 'cigoto', 'cingoto', 'ckgoto', 'cngoto'),
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prefix=r'\b', suffix=r'\b'), Keyword,
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('goto label', 'goto expression')),
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(words(('loop_ge', 'loop_gt', 'loop_le', 'loop_lt'),
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prefix=r'\b', suffix=r'\b'), Keyword,
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('goto label', 'goto expression', 'goto expression', 'goto expression')),
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(r'\bscoreline(_i)?\b', Name.Builtin, 'scoreline 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'\b[a-zA-Z_]\w*\b', name_callback)
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],
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'expression': [
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include('whitespace or macro call'),
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newline + ('#pop',),
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include('partial expression')
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],
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'root': [
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newline,
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include('whitespace or macro call'),
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(r'\binstr\b', Keyword, ('instrument block', 'instrument name list')),
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(r'\bopcode\b', Keyword, ('opcode block', 'opcode parameter list',
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'opcode types', 'opcode types', 'opcode name')),
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include('label'),
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default('expression')
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],
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'instrument name list': [
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include('whitespace or macro call'),
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(r'\d+|\+?[a-zA-Z_]\w*', Name.Function),
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(r',', Punctuation),
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newline + ('#pop',)
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],
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'instrument block': [
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newline,
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include('whitespace or macro call'),
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(r'\bendin\b', Keyword, '#pop'),
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include('label'),
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default('expression')
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],
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'opcode name': [
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include('whitespace or macro call'),
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(r'[a-zA-Z_]\w*', opcode_name_callback, '#pop')
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],
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'opcode types': [
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include('whitespace or macro call'),
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(r'0|[]afijkKoOpPStV[]+', Keyword.Type, '#pop'),
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(r',', Punctuation)
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],
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'opcode parameter list': [
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include('whitespace or macro call'),
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newline + ('#pop',)
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],
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'opcode block': [
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newline,
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include('whitespace or macro call'),
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(r'\bendop\b', Keyword, '#pop'),
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include('label'),
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default('expression')
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],
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'goto label': [
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include('whitespace or macro call'),
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(r'\w+', Name.Label, '#pop'),
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default('#pop')
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],
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'goto expression': [
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include('whitespace or macro call'),
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(r',', Punctuation, '#pop'),
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include('partial expression')
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],
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'single-line string': [
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include('macro call'),
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(r'"', String, '#pop'),
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# From https://github.com/csound/csound/blob/develop/Opcodes/fout.c#L1405
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(r'%\d*(\.\d+)?[cdhilouxX]', String.Interpol),
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(r'%[!%nNrRtT]|[~^]|\\([\\aAbBnNrRtT"]|[0-7]{1,3})', String.Escape),
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(r'[^\\"~$%\^\n]+', String),
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(r'[\\"~$%\^\n]', String)
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],
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'multi-line string': [
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(r'\}\}', String, '#pop'),
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(r'[^}]+|\}(?!\})', String)
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],
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'scoreline opcode': [
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include('whitespace or macro call'),
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(r'\{\{', String, 'scoreline'),
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default('#pop')
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],
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'scoreline': [
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(r'\}\}', String, '#pop'),
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(r'([^}]+)|\}(?!\})', using(CsoundScoreLexer))
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],
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'python opcode': [
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include('whitespace or macro call'),
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(r'\{\{', String, 'python'),
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default('#pop')
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],
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'python': [
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(r'\}\}', String, '#pop'),
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(r'([^}]+)|\}(?!\})', using(PythonLexer))
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],
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'lua opcode': [
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include('whitespace or macro call'),
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(r'"', String, 'single-line string'),
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(r'\{\{', String, 'lua'),
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(r',', Punctuation),
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default('#pop')
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],
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'lua': [
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(r'\}\}', String, '#pop'),
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(r'([^}]+)|\}(?!\})', using(LuaLexer))
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]
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}
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class CsoundDocumentLexer(RegexLexer):
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"""
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For `Csound <http://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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newline,
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(r'/[*](.|\n)*?[*]/', Comment.Multiline),
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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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