272 lines
8.7 KiB
Python
272 lines
8.7 KiB
Python
"""
|
|
pygments.lexers.ul4
|
|
~~~~~~~~~~~~~~~~~~~
|
|
|
|
Lexer for the UL4 templating language.
|
|
|
|
More information: https://python.livinglogic.de/UL4.html
|
|
|
|
:copyright: Copyright 2006-2022 by the Pygments team, see AUTHORS.
|
|
:license: BSD, see LICENSE for details.
|
|
"""
|
|
|
|
import re
|
|
|
|
from pygments.lexer import RegexLexer, DelegatingLexer, bygroups, words, include
|
|
from pygments.token import Comment, Text, Keyword, String, Number, Literal, \
|
|
Name, Other, Operator
|
|
from pygments.lexers.web import HtmlLexer, XmlLexer, CssLexer, JavascriptLexer
|
|
from pygments.lexers.python import PythonLexer
|
|
|
|
|
|
__all__ = [
|
|
'UL4Lexer',
|
|
'HTMLUL4Lexer',
|
|
'XMLUL4Lexer',
|
|
'CSSUL4Lexer',
|
|
'JavascriptUL4Lexer',
|
|
'PythonUL4Lexer',
|
|
]
|
|
|
|
|
|
class UL4Lexer(RegexLexer):
|
|
"""
|
|
Generic lexer for UL4.
|
|
|
|
.. versionadded:: 2.12
|
|
"""
|
|
|
|
flags = re.MULTILINE | re.DOTALL
|
|
|
|
name = 'UL4'
|
|
aliases = ['ul4']
|
|
filenames = ['*.ul4']
|
|
|
|
tokens = {
|
|
"root": [
|
|
(
|
|
# Template header without name:
|
|
# ``<?ul4?>``
|
|
r"(<\?)(\s*)(ul4)(\s*)(\?>)",
|
|
bygroups(Comment.Preproc, Text.Whitespace, Keyword, Text.Whitespace, Comment.Preproc),
|
|
),
|
|
(
|
|
# Template header with name (potentially followed by the signature):
|
|
# ``<?ul4 foo(bar=42)?>``
|
|
r"(<\?)(\s*)(ul4)(\s*)([a-zA-Z_][a-zA-Z_0-9]*)?",
|
|
bygroups(Comment.Preproc, Text.Whitespace, Keyword, Text.Whitespace, Name.Function),
|
|
"ul4", # Switch to "expression" mode
|
|
),
|
|
(
|
|
# Comment:
|
|
# ``<?note foobar?>``
|
|
r"<\?\s*note\s.*?\?>",
|
|
Comment,
|
|
),
|
|
(
|
|
# Template documentation:
|
|
# ``<?doc foobar?>``
|
|
r"<\?\s*doc\s.*?\?>",
|
|
String.Doc,
|
|
),
|
|
(
|
|
# ``<?ignore?>`` tag for commenting out code:
|
|
# ``<?ignore?>...<?end ignore?>``
|
|
r"<\?\s*ignore\s*\?>",
|
|
Comment,
|
|
"ignore", # Switch to "ignore" mode
|
|
),
|
|
(
|
|
# ``<?def?>`` tag for defining local templates
|
|
# ``<?def foo(bar=42)?>...<?end def?>``
|
|
r"(<\?)(\s*)(def)(\s*)([a-zA-Z_][a-zA-Z_0-9]*)?",
|
|
bygroups(Comment.Preproc, Text.Whitespace, Keyword, Text.Whitespace, Name.Function),
|
|
"ul4", # Switch to "expression" mode
|
|
),
|
|
(
|
|
# The rest of the supported tags
|
|
r"(<\?)(\s*)(printx|print|for|if|elif|else|while|code|renderblocks?|render)\b",
|
|
bygroups(Comment.Preproc, Text.Whitespace, Keyword),
|
|
"ul4", # Switch to "expression" mode
|
|
),
|
|
(
|
|
# ``<?end?>`` tag for ending ``<?def?>``, ``<?for?>``,
|
|
# ``<?if?>``, ``<?while?>``, ``<?renderblock?>`` and
|
|
# ``<?renderblocks?>`` blocks.
|
|
r"(<\?)(\s*)(end)\b",
|
|
bygroups(Comment.Preproc, Text.Whitespace, Keyword),
|
|
"end", # Switch to "end tag" mode
|
|
),
|
|
(
|
|
# ``<?whitespace?>`` tag for configuring whitespace handlng
|
|
r"(<\?)(\s*)(whitespace)\b",
|
|
bygroups(Comment.Preproc, Text.Whitespace, Keyword),
|
|
"whitespace", # Switch to "whitespace" mode
|
|
),
|
|
# Plain text
|
|
(r"[^<]+", Other),
|
|
(r"<", Other),
|
|
],
|
|
# Ignore mode ignores everything upto the matching ``<?end ignore?>`` tag
|
|
"ignore": [
|
|
# Nested ``<?ignore?>`` tag
|
|
(r"<\?\s*ignore\s*\?>", Comment, "#push"),
|
|
# ``<?end ignore?>`` tag
|
|
(r"<\?\s*end\s+ignore\s*\?>", Comment, "#pop"),
|
|
# Everything else
|
|
(r"[^<]+", Comment),
|
|
(r".", Comment),
|
|
],
|
|
# UL4 expressions
|
|
"ul4": [
|
|
# End the tag
|
|
(r"\?>", Comment.Preproc, "#pop"),
|
|
# Start triple quoted string constant
|
|
("'''", String, "string13"),
|
|
('"""', String, "string23"),
|
|
# Start single quoted string constant
|
|
("'", String, "string1"),
|
|
('"', String, "string2"),
|
|
# Floating point number
|
|
(r"\d+\.\d*([eE][+-]?\d+)?", Number.Float),
|
|
(r"\.\d+([eE][+-]?\d+)?", Number.Float),
|
|
(r"\d+[eE][+-]?\d+", Number.Float),
|
|
# Binary integer: ``0b101010``
|
|
(r"0[bB][01]+", Number.Bin),
|
|
# Octal integer: ``0o52``
|
|
(r"0[oO][0-7]+", Number.Oct),
|
|
# Hexadecimal integer: ``0x2a``
|
|
(r"0[xX][0-9a-fA-F]+", Number.Hex),
|
|
# Date or datetime: ``@(2000-02-29)``/``@(2000-02-29T12:34:56.987654)``
|
|
(r"@\(\d\d\d\d-\d\d-\d\d(T(\d\d:\d\d(:\d\d(\.\d{6})?)?)?)?\)", Literal.Date),
|
|
# Color: ``#fff``, ``#fff8f0`` etc.
|
|
(r"#[0-9a-fA-F]{8}", Literal.Color),
|
|
(r"#[0-9a-fA-F]{6}", Literal.Color),
|
|
(r"#[0-9a-fA-F]{3,4}", Literal.Color),
|
|
# Decimal integer: ``42``
|
|
(r"\d+", Number.Integer),
|
|
# Operators
|
|
(r"//|==|!=|>=|<=|<<|>>|\+=|-=|\*=|/=|//=|<<=|>>=|&=|\|=|^=|=|[\[\]{},:*/().~%&|<>^+-]", Operator),
|
|
# Keywords
|
|
(words(("for", "in", "if", "else", "not", "is", "and", "or"), suffix=r"\b"), Keyword),
|
|
# Builtin constants
|
|
(words(("None", "False", "True"), suffix=r"\b"), Keyword.Constant),
|
|
# Variable names
|
|
(r"[a-zA-Z_][a-zA-Z0-9_]*", Name),
|
|
# Whitespace
|
|
(r"\s+", Text.Whitespace),
|
|
],
|
|
# ``<?end ...?>`` tag for closing the last open block
|
|
"end": [
|
|
(r"\?>", Comment.Preproc, "#pop"),
|
|
(words(("for", "if", "def", "while", "renderblock", "renderblocks"), suffix=r"\b"), Keyword),
|
|
(r"\s+", Text),
|
|
],
|
|
# Content of the ``<?whitespace ...?>`` tag:
|
|
# ``keep``, ``strip`` or ``smart``
|
|
"whitespace": [
|
|
(r"\?>", Comment.Preproc, "#pop"),
|
|
(words(("keep", "strip", "smart"), suffix=r"\b"), Comment.Preproc),
|
|
(r"\s+", Text.Whitespace),
|
|
],
|
|
# Inside a string constant
|
|
"stringescapes": [
|
|
(r"""\\[\\'"abtnfr]""", String.Escape),
|
|
(r"\\x[0-9a-fA-F]{2}", String.Escape),
|
|
(r"\\u[0-9a-fA-F]{4}", String.Escape),
|
|
(r"\\U[0-9a-fA-F]{8}", String.Escape),
|
|
],
|
|
# Inside a triple quoted string started with ``'''``
|
|
"string13": [
|
|
(r"'''", String, "#pop"),
|
|
include("stringescapes"),
|
|
(r"[^\\']+", String),
|
|
(r'.', String),
|
|
],
|
|
# Inside a triple quoted string started with ``"""``
|
|
"string23": [
|
|
(r'"""', String, "#pop"),
|
|
include("stringescapes"),
|
|
(r'[^\\"]+', String),
|
|
(r'.', String),
|
|
],
|
|
# Inside a single quoted string started with ``'``
|
|
"string1": [
|
|
(r"'", String, "#pop"),
|
|
include("stringescapes"),
|
|
(r"[^\\']+", String),
|
|
(r'.', String),
|
|
],
|
|
# Inside a single quoted string started with ``"``
|
|
"string2": [
|
|
(r'"', String, "#pop"),
|
|
include("stringescapes"),
|
|
(r'[^\\"]+', String),
|
|
(r'.', String),
|
|
],
|
|
}
|
|
|
|
class HTMLUL4Lexer(DelegatingLexer):
|
|
"""
|
|
Lexer for UL4 embedded in HTML.
|
|
"""
|
|
|
|
name = 'HTML+UL4'
|
|
aliases = ['html+ul4']
|
|
filenames = ['*.htmlul4']
|
|
|
|
def __init__(self, **options):
|
|
super().__init__(HtmlLexer, UL4Lexer, **options)
|
|
|
|
|
|
class XMLUL4Lexer(DelegatingLexer):
|
|
"""
|
|
Lexer for UL4 embedded in XML.
|
|
"""
|
|
|
|
name = 'XML+UL4'
|
|
aliases = ['xml+ul4']
|
|
filenames = ['*.xmlul4']
|
|
|
|
def __init__(self, **options):
|
|
super().__init__(XmlLexer, UL4Lexer, **options)
|
|
|
|
|
|
class CSSUL4Lexer(DelegatingLexer):
|
|
"""
|
|
Lexer for UL4 embedded in CSS.
|
|
"""
|
|
|
|
name = 'CSS+UL4'
|
|
aliases = ['css+ul4']
|
|
filenames = ['*.cssul4']
|
|
|
|
def __init__(self, **options):
|
|
super().__init__(CssLexer, UL4Lexer, **options)
|
|
|
|
|
|
class JavascriptUL4Lexer(DelegatingLexer):
|
|
"""
|
|
Lexer for UL4 embedded in Javascript.
|
|
"""
|
|
|
|
name = 'Javascript+UL4'
|
|
aliases = ['js+ul4']
|
|
filenames = ['*.jsul4']
|
|
|
|
def __init__(self, **options):
|
|
super().__init__(JavascriptLexer, UL4Lexer, **options)
|
|
|
|
|
|
class PythonUL4Lexer(DelegatingLexer):
|
|
"""
|
|
Lexer for UL4 embedded in Python.
|
|
"""
|
|
|
|
name = 'Python+UL4'
|
|
aliases = ['py+ul4']
|
|
filenames = ['*.pyul4']
|
|
|
|
def __init__(self, **options):
|
|
super().__init__(PythonLexer, UL4Lexer, **options)
|