/usr/lib/python2.7/dist-packages/pygments/lexers/julia.py is in python-pygments 2.1+dfsg-1.
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"""
pygments.lexers.julia
~~~~~~~~~~~~~~~~~~~~~
Lexers for the Julia language.
:copyright: Copyright 2006-2015 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import re
from pygments.lexer import Lexer, RegexLexer, bygroups, combined, do_insertions
from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
Number, Punctuation, Generic
from pygments.util import shebang_matches, unirange
__all__ = ['JuliaLexer', 'JuliaConsoleLexer']
class JuliaLexer(RegexLexer):
"""
For `Julia <http://julialang.org/>`_ source code.
.. versionadded:: 1.6
"""
name = 'Julia'
aliases = ['julia', 'jl']
filenames = ['*.jl']
mimetypes = ['text/x-julia', 'application/x-julia']
flags = re.MULTILINE | re.UNICODE
builtins = [
'exit', 'whos', 'edit', 'load', 'is', 'isa', 'isequal', 'typeof', 'tuple',
'ntuple', 'uid', 'hash', 'finalizer', 'convert', 'promote', 'subtype',
'typemin', 'typemax', 'realmin', 'realmax', 'sizeof', 'eps', 'promote_type',
'method_exists', 'applicable', 'invoke', 'dlopen', 'dlsym', 'system',
'error', 'throw', 'assert', 'new', 'Inf', 'Nan', 'pi', 'im',
]
tokens = {
'root': [
(r'\n', Text),
(r'[^\S\n]+', Text),
(r'#=', Comment.Multiline, "blockcomment"),
(r'#.*$', Comment),
(r'[]{}:(),;[@]', Punctuation),
(r'\\\n', Text),
(r'\\', Text),
# keywords
(r'(begin|while|for|in|return|break|continue|'
r'macro|quote|let|if|elseif|else|try|catch|end|'
r'bitstype|ccall|do|using|module|import|export|'
r'importall|baremodule|immutable)\b', Keyword),
(r'(local|global|const)\b', Keyword.Declaration),
(r'(Bool|Int|Int8|Int16|Int32|Int64|Uint|Uint8|Uint16|Uint32|Uint64'
r'|Float32|Float64|Complex64|Complex128|Any|Nothing|None)\b',
Keyword.Type),
# functions
(r'(function)((?:\s|\\\s)+)',
bygroups(Keyword, Name.Function), 'funcname'),
# types
(r'(type|typealias|abstract)((?:\s|\\\s)+)',
bygroups(Keyword, Name.Class), 'typename'),
# operators
(r'==|!=|<=|>=|->|&&|\|\||::|<:|[-~+/*%=<>&^|.?!$]', Operator),
(r'\.\*|\.\^|\.\\|\.\/|\\', Operator),
# builtins
('(' + '|'.join(builtins) + r')\b', Name.Builtin),
# backticks
(r'`(?s).*?`', String.Backtick),
# chars
(r"'(\\.|\\[0-7]{1,3}|\\x[a-fA-F0-9]{1,3}|\\u[a-fA-F0-9]{1,4}|"
r"\\U[a-fA-F0-9]{1,6}|[^\\\'\n])'", String.Char),
# try to match trailing transpose
(r'(?<=[.\w)\]])\'+', Operator),
# strings
(r'(?:[IL])"', String, 'string'),
(r'[E]?"', String, combined('stringescape', 'string')),
# names
(r'@[\w.]+', Name.Decorator),
(u'(?:[a-zA-Z_\u00A1-\uffff]|%s)(?:[a-zA-Z_0-9\u00A1-\uffff]|%s)*!*' %
((unirange(0x10000, 0x10ffff),)*2), Name),
# numbers
(r'(\d+(_\d+)+\.\d*|\d*\.\d+(_\d+)+)([eEf][+-]?[0-9]+)?', Number.Float),
(r'(\d+\.\d*|\d*\.\d+)([eEf][+-]?[0-9]+)?', Number.Float),
(r'\d+(_\d+)+[eEf][+-]?[0-9]+', Number.Float),
(r'\d+[eEf][+-]?[0-9]+', Number.Float),
(r'0b[01]+(_[01]+)+', Number.Bin),
(r'0b[01]+', Number.Bin),
(r'0o[0-7]+(_[0-7]+)+', Number.Oct),
(r'0o[0-7]+', Number.Oct),
(r'0x[a-fA-F0-9]+(_[a-fA-F0-9]+)+', Number.Hex),
(r'0x[a-fA-F0-9]+', Number.Hex),
(r'\d+(_\d+)+', Number.Integer),
(r'\d+', Number.Integer)
],
'funcname': [
('[a-zA-Z_]\w*', Name.Function, '#pop'),
('\([^\s\w{]{1,2}\)', Operator, '#pop'),
('[^\s\w{]{1,2}', Operator, '#pop'),
],
'typename': [
('[a-zA-Z_]\w*', Name.Class, '#pop')
],
'stringescape': [
(r'\\([\\abfnrtv"\']|\n|N\{.*?\}|u[a-fA-F0-9]{4}|'
r'U[a-fA-F0-9]{8}|x[a-fA-F0-9]{2}|[0-7]{1,3})', String.Escape)
],
"blockcomment": [
(r'[^=#]', Comment.Multiline),
(r'#=', Comment.Multiline, '#push'),
(r'=#', Comment.Multiline, '#pop'),
(r'[=#]', Comment.Multiline),
],
'string': [
(r'"', String, '#pop'),
(r'\\\\|\\"|\\\n', String.Escape), # included here for raw strings
(r'\$(\(\w+\))?[-#0 +]*([0-9]+|[*])?(\.([0-9]+|[*]))?',
String.Interpol),
(r'[^\\"$]+', String),
# quotes, dollar signs, and backslashes must be parsed one at a time
(r'["\\]', String),
# unhandled string formatting sign
(r'\$', String)
],
}
def analyse_text(text):
return shebang_matches(text, r'julia')
line_re = re.compile('.*?\n')
class JuliaConsoleLexer(Lexer):
"""
For Julia console sessions. Modeled after MatlabSessionLexer.
.. versionadded:: 1.6
"""
name = 'Julia console'
aliases = ['jlcon']
def get_tokens_unprocessed(self, text):
jllexer = JuliaLexer(**self.options)
curcode = ''
insertions = []
for match in line_re.finditer(text):
line = match.group()
if line.startswith('julia>'):
insertions.append((len(curcode),
[(0, Generic.Prompt, line[:6])]))
curcode += line[6:]
elif line.startswith(' '):
idx = len(curcode)
# without is showing error on same line as before...?
line = "\n" + line
token = (0, Generic.Traceback, line)
insertions.append((idx, [token]))
else:
if curcode:
for item in do_insertions(
insertions, jllexer.get_tokens_unprocessed(curcode)):
yield item
curcode = ''
insertions = []
yield match.start(), Generic.Output, line
if curcode: # or item:
for item in do_insertions(
insertions, jllexer.get_tokens_unprocessed(curcode)):
yield item
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