109 lines
3.5 KiB
Python
109 lines
3.5 KiB
Python
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# -*- coding: utf-8 -*-
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"""
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pygments.lexers.stata
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~~~~~~~~~~~~~~~~~~~~~
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Lexer for Stata
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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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from pygments.lexer import RegexLexer, include, words
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from pygments.token import Comment, Keyword, Name, Number, \
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String, Text, Operator
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from pygments.lexers._stata_builtins import builtins_base, builtins_functions
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__all__ = ['StataLexer']
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class StataLexer(RegexLexer):
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"""
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For `Stata <http://www.stata.com/>`_ do files.
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.. versionadded:: 2.2
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"""
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# Syntax based on
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# - http://fmwww.bc.edu/RePEc/bocode/s/synlightlist.ado
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# - http://github.com/isagalaev/highlight.js/blob/master/src/languages/stata.js
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# - http://github.com/jpitblado/vim-stata/blob/master/syntax/stata.vim
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name = 'Stata'
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aliases = ['stata', 'do']
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filenames = ['*.do', '*.ado']
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mimetypes = ['text/x-stata', 'text/stata', 'application/x-stata']
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tokens = {
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'root': [
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include('comments'),
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include('vars-strings'),
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include('numbers'),
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include('keywords'),
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(r'.', Text),
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],
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# Global and local macros; regular and special strings
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'vars-strings': [
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(r'\$[\w{]', Name.Variable.Global, 'var_validglobal'),
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(r'`\w{0,31}\'', Name.Variable),
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(r'"', String, 'string_dquote'),
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(r'`"', String, 'string_mquote'),
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],
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# For either string type, highlight macros as macros
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'string_dquote': [
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(r'"', String, '#pop'),
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(r'\\\\|\\"|\\\n', String.Escape),
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(r'\$', Name.Variable.Global, 'var_validglobal'),
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(r'`', Name.Variable, 'var_validlocal'),
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(r'[^$`"\\]+', String),
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(r'[$"\\]', String),
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],
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'string_mquote': [
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(r'"\'', String, '#pop'),
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(r'\\\\|\\"|\\\n', String.Escape),
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(r'\$', Name.Variable.Global, 'var_validglobal'),
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(r'`', Name.Variable, 'var_validlocal'),
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(r'[^$`"\\]+', String),
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(r'[$"\\]', String),
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],
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'var_validglobal': [
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(r'\{\w{0,32}\}', Name.Variable.Global, '#pop'),
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(r'\w{1,32}', Name.Variable.Global, '#pop'),
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],
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'var_validlocal': [
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(r'\w{0,31}\'', Name.Variable, '#pop'),
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],
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# * only OK at line start, // OK anywhere
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'comments': [
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(r'^\s*\*.*$', Comment),
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(r'//.*', Comment.Single),
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(r'/\*.*?\*/', Comment.Multiline),
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(r'/[*](.|\n)*?[*]/', Comment.Multiline),
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],
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# Built in functions and statements
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'keywords': [
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(words(builtins_functions, prefix = r'\b', suffix = r'\('),
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Name.Function),
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(words(builtins_base, prefix = r'(^\s*|\s)', suffix = r'\b'),
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Keyword),
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],
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# http://www.stata.com/help.cgi?operators
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'operators': [
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(r'-|==|<=|>=|<|>|&|!=', Operator),
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(r'\*|\+|\^|/|!|~|==|~=', Operator)
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],
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# Stata numbers
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'numbers': [
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# decimal number
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(r'\b[+-]?([0-9]+(\.[0-9]+)?|\.[0-9]+|\.)([eE][+-]?[0-9]+)?[i]?\b',
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Number),
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],
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# Stata formats
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'format': [
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(r'%-?\d{1,2}(\.\d{1,2})?[gfe]c?', Name.Variable),
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(r'%(21x|16H|16L|8H|8L)', Name.Variable),
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(r'%-?(tc|tC|td|tw|tm|tq|th|ty|tg).{0,32}', Name.Variable),
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(r'%[-~]?\d{1,4}s', Name.Variable),
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]
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}
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