mirror of https://github.com/ansible/ansible.git
Improving syntax highlighting in HTML docs (#42472)
* Adding improved YAML lexer for HTML docs. * Fixing (some of) the warnings. * Fixing more warnings. * Removing ansible- prefix from lexer names. * Rename extensions -> _extensions. * Removing superfluous module search path extension.pull/43522/head
Felix Fontein
6 years ago
committed by
Alicia Cozine
parent
01c0446cb5
commit
e7e63ec1e8
@ -0,0 +1,498 @@
|
||||
# -*- coding: utf-8 -*-
|
||||
# pylint: disable=no-self-argument
|
||||
#
|
||||
# Copyright 2006-2017 by the Pygments team, see AUTHORS at
|
||||
# https://bitbucket.org/birkenfeld/pygments-main/raw/7941677dc77d4f2bf0bbd6140ade85a9454b8b80/AUTHORS
|
||||
# Copyright by Kirill Simonov (original author of YAML lexer).
|
||||
#
|
||||
# Licensed under BSD license:
|
||||
#
|
||||
# Copyright (c) 2006-2017 by the respective authors (see AUTHORS file).
|
||||
# All rights reserved.
|
||||
#
|
||||
# Redistribution and use in source and binary forms, with or without
|
||||
# modification, are permitted provided that the following conditions are
|
||||
# met:
|
||||
#
|
||||
# * Redistributions of source code must retain the above copyright
|
||||
# notice, this list of conditions and the following disclaimer.
|
||||
#
|
||||
# * Redistributions in binary form must reproduce the above copyright
|
||||
# notice, this list of conditions and the following disclaimer in the
|
||||
# documentation and/or other materials provided with the distribution.
|
||||
#
|
||||
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
from __future__ import absolute_import, print_function
|
||||
|
||||
from pygments.lexer import LexerContext, ExtendedRegexLexer, DelegatingLexer, bygroups, include
|
||||
from pygments.lexers import DjangoLexer
|
||||
from pygments import token
|
||||
|
||||
|
||||
class AnsibleYamlLexerContext(LexerContext):
|
||||
"""Indentation context for the YAML lexer."""
|
||||
|
||||
def __init__(self, *args, **kwds):
|
||||
super(AnsibleYamlLexerContext, self).__init__(*args, **kwds)
|
||||
self.indent_stack = []
|
||||
self.indent = -1
|
||||
self.next_indent = 0
|
||||
self.block_scalar_indent = None
|
||||
|
||||
|
||||
class AnsibleYamlLexer(ExtendedRegexLexer):
|
||||
"""
|
||||
Lexer for `YAML <http://yaml.org/>`_, a human-friendly data serialization
|
||||
language.
|
||||
|
||||
.. versionadded:: 0.11
|
||||
"""
|
||||
|
||||
name = 'YAML'
|
||||
aliases = ['yaml']
|
||||
filenames = ['*.yaml', '*.yml']
|
||||
mimetypes = ['text/x-yaml']
|
||||
|
||||
def something(token_class):
|
||||
"""Do not produce empty tokens."""
|
||||
def callback(lexer, match, context):
|
||||
text = match.group()
|
||||
if not text:
|
||||
return
|
||||
yield match.start(), token_class, text
|
||||
context.pos = match.end()
|
||||
return callback
|
||||
|
||||
def reset_indent(token_class):
|
||||
"""Reset the indentation levels."""
|
||||
def callback(lexer, match, context):
|
||||
text = match.group()
|
||||
context.indent_stack = []
|
||||
context.indent = -1
|
||||
context.next_indent = 0
|
||||
context.block_scalar_indent = None
|
||||
yield match.start(), token_class, text
|
||||
context.pos = match.end()
|
||||
return callback
|
||||
|
||||
def save_indent(token_class, start=False):
|
||||
"""Save a possible indentation level."""
|
||||
def callback(lexer, match, context):
|
||||
text = match.group()
|
||||
extra = ''
|
||||
if start:
|
||||
context.next_indent = len(text)
|
||||
if context.next_indent < context.indent:
|
||||
while context.next_indent < context.indent:
|
||||
context.indent = context.indent_stack.pop()
|
||||
if context.next_indent > context.indent:
|
||||
extra = text[context.indent:]
|
||||
text = text[:context.indent]
|
||||
else:
|
||||
context.next_indent += len(text)
|
||||
if text:
|
||||
yield match.start(), token_class, text
|
||||
if extra:
|
||||
yield match.start() + len(text), token_class.Error, extra
|
||||
context.pos = match.end()
|
||||
return callback
|
||||
|
||||
def set_indent(token_class, implicit=False):
|
||||
"""Set the previously saved indentation level."""
|
||||
def callback(lexer, match, context):
|
||||
text = match.group()
|
||||
if context.indent < context.next_indent:
|
||||
context.indent_stack.append(context.indent)
|
||||
context.indent = context.next_indent
|
||||
if not implicit:
|
||||
context.next_indent += len(text)
|
||||
yield match.start(), token_class, text
|
||||
context.pos = match.end()
|
||||
return callback
|
||||
|
||||
def set_block_scalar_indent(token_class):
|
||||
"""Set an explicit indentation level for a block scalar."""
|
||||
def callback(lexer, match, context):
|
||||
text = match.group()
|
||||
context.block_scalar_indent = None
|
||||
if not text:
|
||||
return
|
||||
increment = match.group(1)
|
||||
if increment:
|
||||
current_indent = max(context.indent, 0)
|
||||
increment = int(increment)
|
||||
context.block_scalar_indent = current_indent + increment
|
||||
if text:
|
||||
yield match.start(), token_class, text
|
||||
context.pos = match.end()
|
||||
return callback
|
||||
|
||||
def parse_block_scalar_empty_line(indent_token_class, content_token_class):
|
||||
"""Process an empty line in a block scalar."""
|
||||
def callback(lexer, match, context):
|
||||
text = match.group()
|
||||
if (context.block_scalar_indent is None or
|
||||
len(text) <= context.block_scalar_indent):
|
||||
if text:
|
||||
yield match.start(), indent_token_class, text
|
||||
else:
|
||||
indentation = text[:context.block_scalar_indent]
|
||||
content = text[context.block_scalar_indent:]
|
||||
yield match.start(), indent_token_class, indentation
|
||||
yield (match.start() + context.block_scalar_indent,
|
||||
content_token_class, content)
|
||||
context.pos = match.end()
|
||||
return callback
|
||||
|
||||
def parse_block_scalar_indent(token_class):
|
||||
"""Process indentation spaces in a block scalar."""
|
||||
def callback(lexer, match, context):
|
||||
text = match.group()
|
||||
if context.block_scalar_indent is None:
|
||||
if len(text) <= max(context.indent, 0):
|
||||
context.stack.pop()
|
||||
context.stack.pop()
|
||||
return
|
||||
context.block_scalar_indent = len(text)
|
||||
else:
|
||||
if len(text) < context.block_scalar_indent:
|
||||
context.stack.pop()
|
||||
context.stack.pop()
|
||||
return
|
||||
if text:
|
||||
yield match.start(), token_class, text
|
||||
context.pos = match.end()
|
||||
return callback
|
||||
|
||||
def parse_plain_scalar_indent(token_class):
|
||||
"""Process indentation spaces in a plain scalar."""
|
||||
def callback(lexer, match, context):
|
||||
text = match.group()
|
||||
if len(text) <= context.indent:
|
||||
context.stack.pop()
|
||||
context.stack.pop()
|
||||
return
|
||||
if text:
|
||||
yield match.start(), token_class, text
|
||||
context.pos = match.end()
|
||||
return callback
|
||||
|
||||
tokens = {
|
||||
# the root rules
|
||||
'root': [
|
||||
# ignored whitespaces
|
||||
(r'[ ]+(?=#|$)', token.Text),
|
||||
# line breaks
|
||||
(r'\n+', token.Text),
|
||||
# a comment
|
||||
(r'#[^\n]*', token.Comment.Single),
|
||||
# the '%YAML' directive
|
||||
(r'^%YAML(?=[ ]|$)', reset_indent(token.Name.Tag), 'yaml-directive'),
|
||||
# the %TAG directive
|
||||
(r'^%TAG(?=[ ]|$)', reset_indent(token.Name.Tag), 'tag-directive'),
|
||||
# document start and document end indicators
|
||||
(r'^(?:---|\.\.\.)(?=[ ]|$)', reset_indent(token.Name.Namespace),
|
||||
'block-line'),
|
||||
# indentation spaces
|
||||
(r'[ ]*(?!\s|$)', save_indent(token.Text, start=True),
|
||||
('block-line', 'indentation')),
|
||||
],
|
||||
|
||||
# trailing whitespaces after directives or a block scalar indicator
|
||||
'ignored-line': [
|
||||
# ignored whitespaces
|
||||
(r'[ ]+(?=#|$)', token.Text),
|
||||
# a comment
|
||||
(r'#[^\n]*', token.Comment.Single),
|
||||
# line break
|
||||
(r'\n', token.Text, '#pop:2'),
|
||||
],
|
||||
|
||||
# the %YAML directive
|
||||
'yaml-directive': [
|
||||
# the version number
|
||||
(r'([ ]+)([0-9]+\.[0-9]+)',
|
||||
bygroups(token.Text, token.Number), 'ignored-line'),
|
||||
],
|
||||
|
||||
# the %YAG directive
|
||||
'tag-directive': [
|
||||
# a tag handle and the corresponding prefix
|
||||
(r'([ ]+)(!|![\w-]*!)'
|
||||
r'([ ]+)(!|!?[\w;/?:@&=+$,.!~*\'()\[\]%-]+)',
|
||||
bygroups(token.Text, token.Keyword.Type, token.Text, token.Keyword.Type),
|
||||
'ignored-line'),
|
||||
],
|
||||
|
||||
# block scalar indicators and indentation spaces
|
||||
'indentation': [
|
||||
# trailing whitespaces are ignored
|
||||
(r'[ ]*$', something(token.Text), '#pop:2'),
|
||||
# whitespaces preceeding block collection indicators
|
||||
(r'[ ]+(?=[?:-](?:[ ]|$))', save_indent(token.Text)),
|
||||
# block collection indicators
|
||||
(r'[?:-](?=[ ]|$)', set_indent(token.Punctuation.Indicator)),
|
||||
# the beginning a block line
|
||||
(r'[ ]*', save_indent(token.Text), '#pop'),
|
||||
],
|
||||
|
||||
# an indented line in the block context
|
||||
'block-line': [
|
||||
# the line end
|
||||
(r'[ ]*(?=#|$)', something(token.Text), '#pop'),
|
||||
# whitespaces separating tokens
|
||||
(r'[ ]+', token.Text),
|
||||
# key with colon
|
||||
(r'([^,:?\[\]{}\n]+)(:)(?=[ ]|$)',
|
||||
bygroups(token.Name.Tag, set_indent(token.Punctuation, implicit=True))),
|
||||
# tags, anchors and aliases,
|
||||
include('descriptors'),
|
||||
# block collections and scalars
|
||||
include('block-nodes'),
|
||||
# flow collections and quoted scalars
|
||||
include('flow-nodes'),
|
||||
# a plain scalar
|
||||
(r'(?=[^\s?:,\[\]{}#&*!|>\'"%@`-]|[?:-]\S)',
|
||||
something(token.Name.Variable),
|
||||
'plain-scalar-in-block-context'),
|
||||
],
|
||||
|
||||
# tags, anchors, aliases
|
||||
'descriptors': [
|
||||
# a full-form tag
|
||||
(r'!<[\w#;/?:@&=+$,.!~*\'()\[\]%-]+>', token.Keyword.Type),
|
||||
# a tag in the form '!', '!suffix' or '!handle!suffix'
|
||||
(r'!(?:[\w-]+!)?'
|
||||
r'[\w#;/?:@&=+$,.!~*\'()\[\]%-]+', token.Keyword.Type),
|
||||
# an anchor
|
||||
(r'&[\w-]+', token.Name.Label),
|
||||
# an alias
|
||||
(r'\*[\w-]+', token.Name.Variable),
|
||||
],
|
||||
|
||||
# block collections and scalars
|
||||
'block-nodes': [
|
||||
# implicit key
|
||||
(r':(?=[ ]|$)', set_indent(token.Punctuation.Indicator, implicit=True)),
|
||||
# literal and folded scalars
|
||||
(r'[|>]', token.Punctuation.Indicator,
|
||||
('block-scalar-content', 'block-scalar-header')),
|
||||
],
|
||||
|
||||
# flow collections and quoted scalars
|
||||
'flow-nodes': [
|
||||
# a flow sequence
|
||||
(r'\[', token.Punctuation.Indicator, 'flow-sequence'),
|
||||
# a flow mapping
|
||||
(r'\{', token.Punctuation.Indicator, 'flow-mapping'),
|
||||
# a single-quoted scalar
|
||||
(r'\'', token.String, 'single-quoted-scalar'),
|
||||
# a double-quoted scalar
|
||||
(r'\"', token.String, 'double-quoted-scalar'),
|
||||
],
|
||||
|
||||
# the content of a flow collection
|
||||
'flow-collection': [
|
||||
# whitespaces
|
||||
(r'[ ]+', token.Text),
|
||||
# line breaks
|
||||
(r'\n+', token.Text),
|
||||
# a comment
|
||||
(r'#[^\n]*', token.Comment.Single),
|
||||
# simple indicators
|
||||
(r'[?:,]', token.Punctuation.Indicator),
|
||||
# tags, anchors and aliases
|
||||
include('descriptors'),
|
||||
# nested collections and quoted scalars
|
||||
include('flow-nodes'),
|
||||
# a plain scalar
|
||||
(r'(?=[^\s?:,\[\]{}#&*!|>\'"%@`])',
|
||||
something(token.Name.Variable),
|
||||
'plain-scalar-in-flow-context'),
|
||||
],
|
||||
|
||||
# a flow sequence indicated by '[' and ']'
|
||||
'flow-sequence': [
|
||||
# include flow collection rules
|
||||
include('flow-collection'),
|
||||
# the closing indicator
|
||||
(r'\]', token.Punctuation.Indicator, '#pop'),
|
||||
],
|
||||
|
||||
# a flow mapping indicated by '{' and '}'
|
||||
'flow-mapping': [
|
||||
# key with colon
|
||||
(r'([^,:?\[\]{}\n]+)(:)(?=[ ]|$)',
|
||||
bygroups(token.Name.Tag, token.Punctuation)),
|
||||
# include flow collection rules
|
||||
include('flow-collection'),
|
||||
# the closing indicator
|
||||
(r'\}', token.Punctuation.Indicator, '#pop'),
|
||||
],
|
||||
|
||||
# block scalar lines
|
||||
'block-scalar-content': [
|
||||
# line break
|
||||
(r'\n', token.Text),
|
||||
# empty line
|
||||
(r'^[ ]+$',
|
||||
parse_block_scalar_empty_line(token.Text, token.Name.Constant)),
|
||||
# indentation spaces (we may leave the state here)
|
||||
(r'^[ ]*', parse_block_scalar_indent(token.Text)),
|
||||
# line content
|
||||
(r'[\S\t ]+', token.Name.Constant),
|
||||
],
|
||||
|
||||
# the content of a literal or folded scalar
|
||||
'block-scalar-header': [
|
||||
# indentation indicator followed by chomping flag
|
||||
(r'([1-9])?[+-]?(?=[ ]|$)',
|
||||
set_block_scalar_indent(token.Punctuation.Indicator),
|
||||
'ignored-line'),
|
||||
# chomping flag followed by indentation indicator
|
||||
(r'[+-]?([1-9])?(?=[ ]|$)',
|
||||
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)
|
||||
Loading…
Reference in New Issue