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499 lines
19 KiB
Python
499 lines
19 KiB
Python
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# -*- coding: utf-8 -*-
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# pylint: disable=no-self-argument
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#
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# Copyright 2006-2017 by the Pygments team, see AUTHORS at
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# https://bitbucket.org/birkenfeld/pygments-main/raw/7941677dc77d4f2bf0bbd6140ade85a9454b8b80/AUTHORS
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# Copyright by Kirill Simonov (original author of YAML lexer).
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#
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# Licensed under BSD license:
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#
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# Copyright (c) 2006-2017 by the respective authors (see AUTHORS file).
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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from __future__ import absolute_import, print_function
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from pygments.lexer import LexerContext, ExtendedRegexLexer, DelegatingLexer, bygroups, include
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from pygments.lexers import DjangoLexer
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from pygments import token
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class AnsibleYamlLexerContext(LexerContext):
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"""Indentation context for the YAML lexer."""
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def __init__(self, *args, **kwds):
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super(AnsibleYamlLexerContext, self).__init__(*args, **kwds)
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self.indent_stack = []
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self.indent = -1
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self.next_indent = 0
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self.block_scalar_indent = None
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class AnsibleYamlLexer(ExtendedRegexLexer):
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"""
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Lexer for `YAML <http://yaml.org/>`_, a human-friendly data serialization
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language.
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.. versionadded:: 0.11
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"""
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name = 'YAML'
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aliases = ['yaml']
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filenames = ['*.yaml', '*.yml']
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mimetypes = ['text/x-yaml']
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def something(token_class):
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"""Do not produce empty tokens."""
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def callback(lexer, match, context):
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text = match.group()
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if not text:
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return
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yield match.start(), token_class, text
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context.pos = match.end()
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return callback
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def reset_indent(token_class):
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"""Reset the indentation levels."""
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def callback(lexer, match, context):
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text = match.group()
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context.indent_stack = []
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context.indent = -1
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context.next_indent = 0
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context.block_scalar_indent = None
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yield match.start(), token_class, text
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context.pos = match.end()
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return callback
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def save_indent(token_class, start=False):
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"""Save a possible indentation level."""
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def callback(lexer, match, context):
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text = match.group()
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extra = ''
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if start:
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context.next_indent = len(text)
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if context.next_indent < context.indent:
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while context.next_indent < context.indent:
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context.indent = context.indent_stack.pop()
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if context.next_indent > context.indent:
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extra = text[context.indent:]
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text = text[:context.indent]
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else:
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context.next_indent += len(text)
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if text:
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yield match.start(), token_class, text
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if extra:
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yield match.start() + len(text), token_class.Error, extra
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context.pos = match.end()
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return callback
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def set_indent(token_class, implicit=False):
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"""Set the previously saved indentation level."""
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def callback(lexer, match, context):
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text = match.group()
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if context.indent < context.next_indent:
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context.indent_stack.append(context.indent)
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context.indent = context.next_indent
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if not implicit:
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context.next_indent += len(text)
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yield match.start(), token_class, text
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context.pos = match.end()
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return callback
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def set_block_scalar_indent(token_class):
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"""Set an explicit indentation level for a block scalar."""
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def callback(lexer, match, context):
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text = match.group()
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context.block_scalar_indent = None
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if not text:
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return
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increment = match.group(1)
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if increment:
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current_indent = max(context.indent, 0)
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increment = int(increment)
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context.block_scalar_indent = current_indent + increment
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if text:
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yield match.start(), token_class, text
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context.pos = match.end()
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return callback
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def parse_block_scalar_empty_line(indent_token_class, content_token_class):
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"""Process an empty line in a block scalar."""
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def callback(lexer, match, context):
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text = match.group()
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if (context.block_scalar_indent is None or
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len(text) <= context.block_scalar_indent):
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if text:
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yield match.start(), indent_token_class, text
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else:
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indentation = text[:context.block_scalar_indent]
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content = text[context.block_scalar_indent:]
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yield match.start(), indent_token_class, indentation
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yield (match.start() + context.block_scalar_indent,
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content_token_class, content)
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context.pos = match.end()
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return callback
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def parse_block_scalar_indent(token_class):
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"""Process indentation spaces in a block scalar."""
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def callback(lexer, match, context):
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text = match.group()
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if context.block_scalar_indent is None:
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if len(text) <= max(context.indent, 0):
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context.stack.pop()
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context.stack.pop()
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return
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context.block_scalar_indent = len(text)
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else:
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if len(text) < context.block_scalar_indent:
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context.stack.pop()
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context.stack.pop()
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return
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if text:
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yield match.start(), token_class, text
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context.pos = match.end()
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return callback
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def parse_plain_scalar_indent(token_class):
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"""Process indentation spaces in a plain scalar."""
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def callback(lexer, match, context):
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text = match.group()
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if len(text) <= context.indent:
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context.stack.pop()
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context.stack.pop()
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return
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if text:
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yield match.start(), token_class, text
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context.pos = match.end()
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return callback
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tokens = {
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# the root rules
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'root': [
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# ignored whitespaces
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(r'[ ]+(?=#|$)', token.Text),
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# line breaks
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(r'\n+', token.Text),
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# a comment
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(r'#[^\n]*', token.Comment.Single),
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# the '%YAML' directive
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(r'^%YAML(?=[ ]|$)', reset_indent(token.Name.Tag), 'yaml-directive'),
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# the %TAG directive
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(r'^%TAG(?=[ ]|$)', reset_indent(token.Name.Tag), 'tag-directive'),
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# document start and document end indicators
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(r'^(?:---|\.\.\.)(?=[ ]|$)', reset_indent(token.Name.Namespace),
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'block-line'),
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# indentation spaces
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(r'[ ]*(?!\s|$)', save_indent(token.Text, start=True),
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('block-line', 'indentation')),
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],
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# trailing whitespaces after directives or a block scalar indicator
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'ignored-line': [
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# ignored whitespaces
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(r'[ ]+(?=#|$)', token.Text),
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# a comment
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(r'#[^\n]*', token.Comment.Single),
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# line break
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(r'\n', token.Text, '#pop:2'),
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],
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# the %YAML directive
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'yaml-directive': [
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# the version number
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(r'([ ]+)([0-9]+\.[0-9]+)',
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bygroups(token.Text, token.Number), 'ignored-line'),
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],
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# the %YAG directive
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'tag-directive': [
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# a tag handle and the corresponding prefix
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(r'([ ]+)(!|![\w-]*!)'
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r'([ ]+)(!|!?[\w;/?:@&=+$,.!~*\'()\[\]%-]+)',
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bygroups(token.Text, token.Keyword.Type, token.Text, token.Keyword.Type),
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'ignored-line'),
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],
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# block scalar indicators and indentation spaces
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'indentation': [
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# trailing whitespaces are ignored
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(r'[ ]*$', something(token.Text), '#pop:2'),
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# whitespaces preceeding block collection indicators
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(r'[ ]+(?=[?:-](?:[ ]|$))', save_indent(token.Text)),
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# block collection indicators
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(r'[?:-](?=[ ]|$)', set_indent(token.Punctuation.Indicator)),
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# the beginning a block line
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(r'[ ]*', save_indent(token.Text), '#pop'),
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],
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# an indented line in the block context
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'block-line': [
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# the line end
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(r'[ ]*(?=#|$)', something(token.Text), '#pop'),
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# whitespaces separating tokens
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(r'[ ]+', token.Text),
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# key with colon
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(r'([^,:?\[\]{}\n]+)(:)(?=[ ]|$)',
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bygroups(token.Name.Tag, set_indent(token.Punctuation, implicit=True))),
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# tags, anchors and aliases,
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include('descriptors'),
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# block collections and scalars
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include('block-nodes'),
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# flow collections and quoted scalars
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include('flow-nodes'),
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# a plain scalar
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(r'(?=[^\s?:,\[\]{}#&*!|>\'"%@`-]|[?:-]\S)',
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something(token.Name.Variable),
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'plain-scalar-in-block-context'),
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],
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# tags, anchors, aliases
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'descriptors': [
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# a full-form tag
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(r'!<[\w#;/?:@&=+$,.!~*\'()\[\]%-]+>', token.Keyword.Type),
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# a tag in the form '!', '!suffix' or '!handle!suffix'
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(r'!(?:[\w-]+!)?'
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r'[\w#;/?:@&=+$,.!~*\'()\[\]%-]+', token.Keyword.Type),
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# an anchor
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(r'&[\w-]+', token.Name.Label),
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# an alias
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(r'\*[\w-]+', token.Name.Variable),
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],
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# block collections and scalars
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'block-nodes': [
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# implicit key
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(r':(?=[ ]|$)', set_indent(token.Punctuation.Indicator, implicit=True)),
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# literal and folded scalars
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(r'[|>]', token.Punctuation.Indicator,
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('block-scalar-content', 'block-scalar-header')),
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],
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# flow collections and quoted scalars
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'flow-nodes': [
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# a flow sequence
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(r'\[', token.Punctuation.Indicator, 'flow-sequence'),
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# a flow mapping
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(r'\{', token.Punctuation.Indicator, 'flow-mapping'),
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# a single-quoted scalar
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(r'\'', token.String, 'single-quoted-scalar'),
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# a double-quoted scalar
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(r'\"', token.String, 'double-quoted-scalar'),
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],
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# the content of a flow collection
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'flow-collection': [
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# whitespaces
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(r'[ ]+', token.Text),
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# line breaks
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(r'\n+', token.Text),
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# a comment
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(r'#[^\n]*', token.Comment.Single),
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# simple indicators
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(r'[?:,]', token.Punctuation.Indicator),
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# tags, anchors and aliases
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include('descriptors'),
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# nested collections and quoted scalars
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include('flow-nodes'),
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# a plain scalar
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(r'(?=[^\s?:,\[\]{}#&*!|>\'"%@`])',
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something(token.Name.Variable),
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'plain-scalar-in-flow-context'),
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],
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# a flow sequence indicated by '[' and ']'
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'flow-sequence': [
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# include flow collection rules
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include('flow-collection'),
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# the closing indicator
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(r'\]', token.Punctuation.Indicator, '#pop'),
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],
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# a flow mapping indicated by '{' and '}'
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'flow-mapping': [
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# key with colon
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(r'([^,:?\[\]{}\n]+)(:)(?=[ ]|$)',
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bygroups(token.Name.Tag, token.Punctuation)),
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# include flow collection rules
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include('flow-collection'),
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# the closing indicator
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(r'\}', token.Punctuation.Indicator, '#pop'),
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],
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# block scalar lines
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'block-scalar-content': [
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# line break
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(r'\n', token.Text),
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# empty line
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(r'^[ ]+$',
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parse_block_scalar_empty_line(token.Text, token.Name.Constant)),
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# indentation spaces (we may leave the state here)
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(r'^[ ]*', parse_block_scalar_indent(token.Text)),
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# line content
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(r'[\S\t ]+', token.Name.Constant),
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],
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# the content of a literal or folded scalar
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'block-scalar-header': [
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# indentation indicator followed by chomping flag
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(r'([1-9])?[+-]?(?=[ ]|$)',
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set_block_scalar_indent(token.Punctuation.Indicator),
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'ignored-line'),
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# chomping flag followed by indentation indicator
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|
|
(r'[+-]?([1-9])?(?=[ ]|$)',
|
||
|
|
set_block_scalar_indent(token.Punctuation.Indicator),
|
||
|
|
'ignored-line'),
|
||
|
|
],
|
||
|
|
|
||
|
|
# ignored and regular whitespaces in quoted scalars
|
||
|
|
'quoted-scalar-whitespaces': [
|
||
|
|
# leading and trailing whitespaces are ignored
|
||
|
|
(r'^[ ]+', token.Text),
|
||
|
|
(r'[ ]+$', token.Text),
|
||
|
|
# line breaks are ignored
|
||
|
|
(r'\n+', token.Text),
|
||
|
|
# other whitespaces are a part of the value
|
||
|
|
(r'[ ]+', token.Name.Variable),
|
||
|
|
],
|
||
|
|
|
||
|
|
# single-quoted scalars
|
||
|
|
'single-quoted-scalar': [
|
||
|
|
# include whitespace and line break rules
|
||
|
|
include('quoted-scalar-whitespaces'),
|
||
|
|
# escaping of the quote character
|
||
|
|
(r'\'\'', token.String.Escape),
|
||
|
|
# regular non-whitespace characters
|
||
|
|
(r'[^\s\']+', token.String),
|
||
|
|
# the closing quote
|
||
|
|
(r'\'', token.String, '#pop'),
|
||
|
|
],
|
||
|
|
|
||
|
|
# double-quoted scalars
|
||
|
|
'double-quoted-scalar': [
|
||
|
|
# include whitespace and line break rules
|
||
|
|
include('quoted-scalar-whitespaces'),
|
||
|
|
# escaping of special characters
|
||
|
|
(r'\\[0abt\tn\nvfre "\\N_LP]', token.String),
|
||
|
|
# escape codes
|
||
|
|
(r'\\(?:x[0-9A-Fa-f]{2}|u[0-9A-Fa-f]{4}|U[0-9A-Fa-f]{8})',
|
||
|
|
token.String.Escape),
|
||
|
|
# regular non-whitespace characters
|
||
|
|
(r'[^\s"\\]+', token.String),
|
||
|
|
# the closing quote
|
||
|
|
(r'"', token.String, '#pop'),
|
||
|
|
],
|
||
|
|
|
||
|
|
# the beginning of a new line while scanning a plain scalar
|
||
|
|
'plain-scalar-in-block-context-new-line': [
|
||
|
|
# empty lines
|
||
|
|
(r'^[ ]+$', token.Text),
|
||
|
|
# line breaks
|
||
|
|
(r'\n+', token.Text),
|
||
|
|
# document start and document end indicators
|
||
|
|
(r'^(?=---|\.\.\.)', something(token.Name.Namespace), '#pop:3'),
|
||
|
|
# indentation spaces (we may leave the block line state here)
|
||
|
|
(r'^[ ]*', parse_plain_scalar_indent(token.Text), '#pop'),
|
||
|
|
],
|
||
|
|
|
||
|
|
# a plain scalar in the block context
|
||
|
|
'plain-scalar-in-block-context': [
|
||
|
|
# the scalar ends with the ':' indicator
|
||
|
|
(r'[ ]*(?=:[ ]|:$)', something(token.Text), '#pop'),
|
||
|
|
# the scalar ends with whitespaces followed by a comment
|
||
|
|
(r'[ ]+(?=#)', token.Text, '#pop'),
|
||
|
|
# trailing whitespaces are ignored
|
||
|
|
(r'[ ]+$', token.Text),
|
||
|
|
# line breaks are ignored
|
||
|
|
(r'\n+', token.Text, 'plain-scalar-in-block-context-new-line'),
|
||
|
|
# other whitespaces are a part of the value
|
||
|
|
(r'[ ]+', token.Literal.Scalar.Plain),
|
||
|
|
# regular non-whitespace characters
|
||
|
|
(r'(?::(?!\s)|[^\s:])+', token.Literal.Scalar.Plain),
|
||
|
|
],
|
||
|
|
|
||
|
|
# a plain scalar is the flow context
|
||
|
|
'plain-scalar-in-flow-context': [
|
||
|
|
# the scalar ends with an indicator character
|
||
|
|
(r'[ ]*(?=[,:?\[\]{}])', something(token.Text), '#pop'),
|
||
|
|
# the scalar ends with a comment
|
||
|
|
(r'[ ]+(?=#)', token.Text, '#pop'),
|
||
|
|
# leading and trailing whitespaces are ignored
|
||
|
|
(r'^[ ]+', token.Text),
|
||
|
|
(r'[ ]+$', token.Text),
|
||
|
|
# line breaks are ignored
|
||
|
|
(r'\n+', token.Text),
|
||
|
|
# other whitespaces are a part of the value
|
||
|
|
(r'[ ]+', token.Name.Variable),
|
||
|
|
# regular non-whitespace characters
|
||
|
|
(r'[^\s,:?\[\]{}]+', token.Name.Variable),
|
||
|
|
],
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
def get_tokens_unprocessed(self, text=None, context=None):
|
||
|
|
if context is None:
|
||
|
|
context = AnsibleYamlLexerContext(text, 0)
|
||
|
|
return super(AnsibleYamlLexer, self).get_tokens_unprocessed(text, context)
|
||
|
|
|
||
|
|
|
||
|
|
class AnsibleYamlJinjaLexer(DelegatingLexer):
|
||
|
|
"""
|
||
|
|
Subclass of the `DjangoLexer` that highlights unlexed data with the
|
||
|
|
`AnsibleYamlLexer`.
|
||
|
|
|
||
|
|
Commonly used in Saltstack salt states.
|
||
|
|
|
||
|
|
.. versionadded:: 2.0
|
||
|
|
"""
|
||
|
|
|
||
|
|
name = 'YAML+Jinja'
|
||
|
|
aliases = ['yaml+jinja']
|
||
|
|
filenames = ['*.sls']
|
||
|
|
mimetypes = ['text/x-yaml+jinja']
|
||
|
|
|
||
|
|
def __init__(self, **options):
|
||
|
|
super(AnsibleYamlJinjaLexer, self).__init__(AnsibleYamlLexer, DjangoLexer, **options)
|
||
|
|
|
||
|
|
|
||
|
|
# ####################################################################################################
|
||
|
|
# # Sphinx plugin ####################################################################################
|
||
|
|
# ####################################################################################################
|
||
|
|
|
||
|
|
__version__ = "0.1.0"
|
||
|
|
__license__ = "BSD license"
|
||
|
|
__author__ = "Felix Fontein"
|
||
|
|
__author_email__ = "felix@fontein.de"
|
||
|
|
|
||
|
|
|
||
|
|
def setup(app):
|
||
|
|
""" Initializer for Sphinx extension API.
|
||
|
|
See http://www.sphinx-doc.org/en/stable/extdev/index.html#dev-extensions.
|
||
|
|
"""
|
||
|
|
for lexer in [AnsibleYamlLexer(startinline=True), AnsibleYamlJinjaLexer(startinline=True)]:
|
||
|
|
app.add_lexer(lexer.name, lexer)
|
||
|
|
for alias in lexer.aliases:
|
||
|
|
app.add_lexer(alias, lexer)
|
||
|
|
|
||
|
|
return dict(version=__version__, parallel_read_safe=True)
|