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# -*- coding: utf-8 -*-
"""
pygments.lexers.lisp
~~~~~~~~~~~~~~~~~~~~
Lexers for Lispy languages.
:copyright: Copyright 2006-2014 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import re
from pygments.lexer import RegexLexer, include, bygroups
from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
Number, Punctuation
from pygments.lexers.python import PythonLexer
__all__ = ['HyLexer']
class HyLexer(RegexLexer):
"""
Lexer for `Hy <http://hylang.org/>`_ source code.
.. versionadded:: 2.0
"""
name = 'Hy'
aliases = ['hylang']
filenames = ['*.hy']
mimetypes = ['text/x-hy', 'application/x-hy']
special_forms = [
'cond', 'for', '->', '->>', 'car',
'cdr', 'first', 'rest', 'let', 'when', 'unless',
'import', 'do', 'progn', 'get', 'slice', 'assoc', 'with-decorator',
',', 'list_comp', 'kwapply', '~', 'is', 'in', 'is-not', 'not-in',
'quasiquote', 'unquote', 'unquote-splice', 'quote', '|', '<<=', '>>=',
'foreach', 'while',
'eval-and-compile', 'eval-when-compile'
]
declarations = [
'def', 'defn', 'defun', 'defmacro', 'defclass', 'lambda', 'fn', 'setv'
]
hy_builtins = []
hy_core = [
'cycle', 'dec', 'distinct', 'drop', 'even?', 'filter', 'inc',
'instance?', 'iterable?', 'iterate', 'iterator?', 'neg?',
'none?', 'nth', 'numeric?', 'odd?', 'pos?', 'remove', 'repeat',
'repeatedly', 'take', 'take_nth', 'take_while', 'zero?'
]
builtins = hy_builtins + hy_core
# valid names for identifiers
# well, names can only not consist fully of numbers
# but this should be good enough for now
valid_name = r'(?!#)[\w!$%*+<=>?/.#-]+'
def _multi_escape(entries):
return '(%s)' % ('|'.join(re.escape(entry) + ' ' for entry in entries))
tokens = {
'root': [
# the comments - always starting with semicolon
# and going to the end of the line
(r';.*$', Comment.Single),
# whitespaces - usually not relevant
(r'[,\s]+', Text),
# numbers
(r'-?\d+\.\d+', Number.Float),
(r'-?\d+', Number.Integer),
(r'0[0-7]+j?', Number.Oct),
(r'0[xX][a-fA-F0-9]+', Number.Hex),
# strings, symbols and characters
(r'"(\\\\|\\"|[^"])*"', String),
(r"'" + valid_name, String.Symbol),
(r"\\(.|[a-z]+)", String.Char),
(r'^(\s*)([rRuU]{,2}"""(?:.|\n)*?""")', bygroups(Text, String.Doc)),
(r"^(\s*)([rRuU]{,2}'''(?:.|\n)*?''')", bygroups(Text, String.Doc)),
# keywords
(r'::?' + valid_name, String.Symbol),
# special operators
(r'~@|[`\'#^~&@]', Operator),
include('py-keywords'),
include('py-builtins'),
# highlight the special forms
(_multi_escape(special_forms), Keyword),
# Technically, only the special forms are 'keywords'. The problem
# is that only treating them as keywords means that things like
# 'defn' and 'ns' need to be highlighted as builtins. This is ugly
# and weird for most styles. So, as a compromise we're going to
# highlight them as Keyword.Declarations.
(_multi_escape(declarations), Keyword.Declaration),
# highlight the builtins
(_multi_escape(builtins), Name.Builtin),
# the remaining functions
(r'(?<=\()' + valid_name, Name.Function),
# find the remaining variables
(valid_name, Name.Variable),
# Hy accepts vector notation
(r'(\[|\])', Punctuation),
# Hy accepts map notation
(r'(\{|\})', Punctuation),
# the famous parentheses!
(r'(\(|\))', Punctuation),
],
'py-keywords': PythonLexer.tokens['keywords'],
'py-builtins': PythonLexer.tokens['builtins'],
}
def analyse_text(text):
if '(import ' in text or '(defn ' in text:
return 0.9
|
