768 lines
26 KiB
Python
768 lines
26 KiB
Python
|
"""
|
||
|
|
pygments.lexers.data
|
||
|
|
~~~~~~~~~~~~~~~~~~~~
|
||
|
|
|
||
|
|
Lexers for data file format.
|
||
|
|
|
||
|
|
:copyright: Copyright 2006-2022 by the Pygments team, see AUTHORS.
|
||
|
|
:license: BSD, see LICENSE for details.
|
||
|
|
"""
|
||
|
|
|
||
|
|
from pygments.lexer import Lexer, ExtendedRegexLexer, LexerContext, \
|
||
|
|
include, bygroups
|
||
|
|
from pygments.token import Comment, Error, Keyword, Literal, Name, Number, \
|
||
|
|
Punctuation, String, Whitespace
|
||
|
|
|
||
|
|
__all__ = ['YamlLexer', 'JsonLexer', 'JsonBareObjectLexer', 'JsonLdLexer']
|
||
|
|
|
||
|
|
|
||
|
|
class YamlLexerContext(LexerContext):
|
||
|
|
"""Indentation context for the YAML lexer."""
|
||
|
|
|
||
|
|
def __init__(self, *args, **kwds):
|
||
|
|
super().__init__(*args, **kwds)
|
||
|
|
self.indent_stack = []
|
||
|
|
self.indent = -1
|
||
|
|
self.next_indent = 0
|
||
|
|
self.block_scalar_indent = None
|
||
|
|
|
||
|
|
|
||
|
|
class YamlLexer(ExtendedRegexLexer):
|
||
|
|
"""
|
||
|
|
Lexer for YAML, a human-friendly data serialization
|
||
|
|
language.
|
||
|
|
|
||
|
|
.. versionadded:: 0.11
|
||
|
|
"""
|
||
|
|
|
||
|
|
name = 'YAML'
|
||
|
|
url = 'http://yaml.org/'
|
||
|
|
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'[ ]+(?=#|$)', Whitespace),
|
||
|
|
# line breaks
|
||
|
|
(r'\n+', Whitespace),
|
||
|
|
# a comment
|
||
|
|
(r'#[^\n]*', Comment.Single),
|
||
|
|
# the '%YAML' directive
|
||
|
|
(r'^%YAML(?=[ ]|$)', reset_indent(Name.Tag), 'yaml-directive'),
|
||
|
|
# the %TAG directive
|
||
|
|
(r'^%TAG(?=[ ]|$)', reset_indent(Name.Tag), 'tag-directive'),
|
||
|
|
# document start and document end indicators
|
||
|
|
(r'^(?:---|\.\.\.)(?=[ ]|$)', reset_indent(Name.Namespace),
|
||
|
|
'block-line'),
|
||
|
|
# indentation spaces
|
||
|
|
(r'[ ]*(?!\s|$)', save_indent(Whitespace, start=True),
|
||
|
|
('block-line', 'indentation')),
|
||
|
|
],
|
||
|
|
|
||
|
|
# trailing whitespaces after directives or a block scalar indicator
|
||
|
|
'ignored-line': [
|
||
|
|
# ignored whitespaces
|
||
|
|
(r'[ ]+(?=#|$)', Whitespace),
|
||
|
|
# a comment
|
||
|
|
(r'#[^\n]*', Comment.Single),
|
||
|
|
# line break
|
||
|
|
(r'\n', Whitespace, '#pop:2'),
|
||
|
|
],
|
||
|
|
|
||
|
|
# the %YAML directive
|
||
|
|
'yaml-directive': [
|
||
|
|
# the version number
|
||
|
|
(r'([ ]+)([0-9]+\.[0-9]+)',
|
||
|
|
bygroups(Whitespace, Number), 'ignored-line'),
|
||
|
|
],
|
||
|
|
|
||
|
|
# the %TAG directive
|
||
|
|
'tag-directive': [
|
||
|
|
# a tag handle and the corresponding prefix
|
||
|
|
(r'([ ]+)(!|![\w-]*!)'
|
||
|
|
r'([ ]+)(!|!?[\w;/?:@&=+$,.!~*\'()\[\]%-]+)',
|
||
|
|
bygroups(Whitespace, Keyword.Type, Whitespace, Keyword.Type),
|
||
|
|
'ignored-line'),
|
||
|
|
],
|
||
|
|
|
||
|
|
# block scalar indicators and indentation spaces
|
||
|
|
'indentation': [
|
||
|
|
# trailing whitespaces are ignored
|
||
|
|
(r'[ ]*$', something(Whitespace), '#pop:2'),
|
||
|
|
# whitespaces preceding block collection indicators
|
||
|
|
(r'[ ]+(?=[?:-](?:[ ]|$))', save_indent(Whitespace)),
|
||
|
|
# block collection indicators
|
||
|
|
(r'[?:-](?=[ ]|$)', set_indent(Punctuation.Indicator)),
|
||
|
|
# the beginning a block line
|
||
|
|
(r'[ ]*', save_indent(Whitespace), '#pop'),
|
||
|
|
],
|
||
|
|
|
||
|
|
# an indented line in the block context
|
||
|
|
'block-line': [
|
||
|
|
# the line end
|
||
|
|
(r'[ ]*(?=#|$)', something(Whitespace), '#pop'),
|
||
|
|
# whitespaces separating tokens
|
||
|
|
(r'[ ]+', Whitespace),
|
||
|
|
# key with colon
|
||
|
|
(r'''([^#,:?\[\]{}"'\n]+)(:)(?=[ ]|$)''',
|
||
|
|
bygroups(Name.Tag, set_indent(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(Name.Variable),
|
||
|
|
'plain-scalar-in-block-context'),
|
||
|
|
],
|
||
|
|
|
||
|
|
# tags, anchors, aliases
|
||
|
|
'descriptors': [
|
||
|
|
# a full-form tag
|
||
|
|
(r'!<[\w#;/?:@&=+$,.!~*\'()\[\]%-]+>', Keyword.Type),
|
||
|
|
# a tag in the form '!', '!suffix' or '!handle!suffix'
|
||
|
|
(r'!(?:[\w-]+!)?'
|
||
|
|
r'[\w#;/?:@&=+$,.!~*\'()\[\]%-]*', Keyword.Type),
|
||
|
|
# an anchor
|
||
|
|
(r'&[\w-]+', Name.Label),
|
||
|
|
# an alias
|
||
|
|
(r'\*[\w-]+', Name.Variable),
|
||
|
|
],
|
||
|
|
|
||
|
|
# block collections and scalars
|
||
|
|
'block-nodes': [
|
||
|
|
# implicit key
|
||
|
|
(r':(?=[ ]|$)', set_indent(Punctuation.Indicator, implicit=True)),
|
||
|
|
# literal and folded scalars
|
||
|
|
(r'[|>]', Punctuation.Indicator,
|
||
|
|
('block-scalar-content', 'block-scalar-header')),
|
||
|
|
],
|
||
|
|
|
||
|
|
# flow collections and quoted scalars
|
||
|
|
'flow-nodes': [
|
||
|
|
# a flow sequence
|
||
|
|
(r'\[', Punctuation.Indicator, 'flow-sequence'),
|
||
|
|
# a flow mapping
|
||
|
|
(r'\{', Punctuation.Indicator, 'flow-mapping'),
|
||
|
|
# a single-quoted scalar
|
||
|
|
(r'\'', String, 'single-quoted-scalar'),
|
||
|
|
# a double-quoted scalar
|
||
|
|
(r'\"', String, 'double-quoted-scalar'),
|
||
|
|
],
|
||
|
|
|
||
|
|
# the content of a flow collection
|
||
|
|
'flow-collection': [
|
||
|
|
# whitespaces
|
||
|
|
(r'[ ]+', Whitespace),
|
||
|
|
# line breaks
|
||
|
|
(r'\n+', Whitespace),
|
||
|
|
# a comment
|
||
|
|
(r'#[^\n]*', Comment.Single),
|
||
|
|
# simple indicators
|
||
|
|
(r'[?:,]', Punctuation.Indicator),
|
||
|
|
# tags, anchors and aliases
|
||
|
|
include('descriptors'),
|
||
|
|
# nested collections and quoted scalars
|
||
|
|
include('flow-nodes'),
|
||
|
|
# a plain scalar
|
||
|
|
(r'(?=[^\s?:,\[\]{}#&*!|>\'"%@`])',
|
||
|
|
something(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'\]', Punctuation.Indicator, '#pop'),
|
||
|
|
],
|
||
|
|
|
||
|
|
# a flow mapping indicated by '{' and '}'
|
||
|
|
'flow-mapping': [
|
||
|
|
# key with colon
|
||
|
|
(r'''([^,:?\[\]{}"'\n]+)(:)(?=[ ]|$)''',
|
||
|
|
bygroups(Name.Tag, Punctuation)),
|
||
|
|
# include flow collection rules
|
||
|
|
include('flow-collection'),
|
||
|
|
# the closing indicator
|
||
|
|
(r'\}', Punctuation.Indicator, '#pop'),
|
||
|
|
],
|
||
|
|
|
||
|
|
# block scalar lines
|
||
|
|
'block-scalar-content': [
|
||
|
|
# line break
|
||
|
|
(r'\n', Whitespace),
|
||
|
|
# empty line
|
||
|
|
(r'^[ ]+$',
|
||
|
|
parse_block_scalar_empty_line(Whitespace, Name.Constant)),
|
||
|
|
# indentation spaces (we may leave the state here)
|
||
|
|
(r'^[ ]*', parse_block_scalar_indent(Whitespace)),
|
||
|
|
# line content
|
||
|
|
(r'[\S\t ]+', Name.Constant),
|
||
|
|
],
|
||
|
|
|
||
|
|
# the content of a literal or folded scalar
|
||
|
|
'block-scalar-header': [
|
||
|
|
# indentation indicator followed by chomping flag
|
||
|
|
(r'([1-9])?[+-]?(?=[ ]|$)',
|
||
|
|
set_block_scalar_indent(Punctuation.Indicator),
|
||
|
|
'ignored-line'),
|
||
|
|
# chomping flag followed by indentation indicator
|
||
|
|
(r'[+-]?([1-9])?(?=[ ]|$)',
|
||
|
|
set_block_scalar_indent(Punctuation.Indicator),
|
||
|
|
'ignored-line'),
|
||
|
|
],
|
||
|
|
|
||
|
|
# ignored and regular whitespaces in quoted scalars
|
||
|
|
'quoted-scalar-whitespaces': [
|
||
|
|
# leading and trailing whitespaces are ignored
|
||
|
|
(r'^[ ]+', Whitespace),
|
||
|
|
(r'[ ]+$', Whitespace),
|
||
|
|
# line breaks are ignored
|
||
|
|
(r'\n+', Whitespace),
|
||
|
|
# other whitespaces are a part of the value
|
||
|
|
(r'[ ]+', Name.Variable),
|
||
|
|
],
|
||
|
|
|
||
|
|
# single-quoted scalars
|
||
|
|
'single-quoted-scalar': [
|
||
|
|
# include whitespace and line break rules
|
||
|
|
include('quoted-scalar-whitespaces'),
|
||
|
|
# escaping of the quote character
|
||
|
|
(r'\'\'', String.Escape),
|
||
|
|
# regular non-whitespace characters
|
||
|
|
(r'[^\s\']+', String),
|
||
|
|
# the closing quote
|
||
|
|
(r'\'', String, '#pop'),
|
||
|
|
],
|
||
|
|
|
||
|
|
# double-quoted scalars
|
||
|
|
'double-quoted-scalar': [
|
||
|
|
# include whitespace and line break rules
|
||
|
|
include('quoted-scalar-whitespaces'),
|
||
|
|
# escaping of special characters
|
||
|
|
(r'\\[0abt\tn\nvfre "\\N_LP]', String),
|
||
|
|
# escape codes
|
||
|
|
(r'\\(?:x[0-9A-Fa-f]{2}|u[0-9A-Fa-f]{4}|U[0-9A-Fa-f]{8})',
|
||
|
|
String.Escape),
|
||
|
|
# regular non-whitespace characters
|
||
|
|
(r'[^\s"\\]+', String),
|
||
|
|
# the closing quote
|
||
|
|
(r'"', String, '#pop'),
|
||
|
|
],
|
||
|
|
|
||
|
|
# the beginning of a new line while scanning a plain scalar
|
||
|
|
'plain-scalar-in-block-context-new-line': [
|
||
|
|
# empty lines
|
||
|
|
(r'^[ ]+$', Whitespace),
|
||
|
|
# line breaks
|
||
|
|
(r'\n+', Whitespace),
|
||
|
|
# document start and document end indicators
|
||
|
|
(r'^(?=---|\.\.\.)', something(Name.Namespace), '#pop:3'),
|
||
|
|
# indentation spaces (we may leave the block line state here)
|
||
|
|
(r'^[ ]*', parse_plain_scalar_indent(Whitespace), '#pop'),
|
||
|
|
],
|
||
|
|
|
||
|
|
# a plain scalar in the block context
|
||
|
|
'plain-scalar-in-block-context': [
|
||
|
|
# the scalar ends with the ':' indicator
|
||
|
|
(r'[ ]*(?=:[ ]|:$)', something(Whitespace), '#pop'),
|
||
|
|
# the scalar ends with whitespaces followed by a comment
|
||
|
|
(r'[ ]+(?=#)', Whitespace, '#pop'),
|
||
|
|
# trailing whitespaces are ignored
|
||
|
|
(r'[ ]+$', Whitespace),
|
||
|
|
# line breaks are ignored
|
||
|
|
(r'\n+', Whitespace, 'plain-scalar-in-block-context-new-line'),
|
||
|
|
# other whitespaces are a part of the value
|
||
|
|
(r'[ ]+', Literal.Scalar.Plain),
|
||
|
|
# regular non-whitespace characters
|
||
|
|
(r'(?::(?!\s)|[^\s:])+', Literal.Scalar.Plain),
|
||
|
|
],
|
||
|
|
|
||
|
|
# a plain scalar is the flow context
|
||
|
|
'plain-scalar-in-flow-context': [
|
||
|
|
# the scalar ends with an indicator character
|
||
|
|
(r'[ ]*(?=[,:?\[\]{}])', something(Whitespace), '#pop'),
|
||
|
|
# the scalar ends with a comment
|
||
|
|
(r'[ ]+(?=#)', Whitespace, '#pop'),
|
||
|
|
# leading and trailing whitespaces are ignored
|
||
|
|
(r'^[ ]+', Whitespace),
|
||
|
|
(r'[ ]+$', Whitespace),
|
||
|
|
# line breaks are ignored
|
||
|
|
(r'\n+', Whitespace),
|
||
|
|
# other whitespaces are a part of the value
|
||
|
|
(r'[ ]+', Name.Variable),
|
||
|
|
# regular non-whitespace characters
|
||
|
|
(r'[^\s,:?\[\]{}]+', Name.Variable),
|
||
|
|
],
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
def get_tokens_unprocessed(self, text=None, context=None):
|
||
|
|
if context is None:
|
||
|
|
context = YamlLexerContext(text, 0)
|
||
|
|
return super().get_tokens_unprocessed(text, context)
|
||
|
|
|
||
|
|
|
||
|
|
class JsonLexer(Lexer):
|
||
|
|
"""
|
||
|
|
For JSON data structures.
|
||
|
|
|
||
|
|
Javascript-style comments are supported (like ``/* */`` and ``//``),
|
||
|
|
though comments are not part of the JSON specification.
|
||
|
|
This allows users to highlight JSON as it is used in the wild.
|
||
|
|
|
||
|
|
No validation is performed on the input JSON document.
|
||
|
|
|
||
|
|
.. versionadded:: 1.5
|
||
|
|
"""
|
||
|
|
|
||
|
|
name = 'JSON'
|
||
|
|
url = 'https://www.json.org'
|
||
|
|
aliases = ['json', 'json-object']
|
||
|
|
filenames = ['*.json', 'Pipfile.lock']
|
||
|
|
mimetypes = ['application/json', 'application/json-object']
|
||
|
|
|
||
|
|
# No validation of integers, floats, or constants is done.
|
||
|
|
# As long as the characters are members of the following
|
||
|
|
# sets, the token will be considered valid. For example,
|
||
|
|
#
|
||
|
|
# "--1--" is parsed as an integer
|
||
|
|
# "1...eee" is parsed as a float
|
||
|
|
# "trustful" is parsed as a constant
|
||
|
|
#
|
||
|
|
integers = set('-0123456789')
|
||
|
|
floats = set('.eE+')
|
||
|
|
constants = set('truefalsenull') # true|false|null
|
||
|
|
hexadecimals = set('0123456789abcdefABCDEF')
|
||
|
|
punctuations = set('{}[],')
|
||
|
|
whitespaces = {'\u0020', '\u000a', '\u000d', '\u0009'}
|
||
|
|
|
||
|
|
def get_tokens_unprocessed(self, text):
|
||
|
|
"""Parse JSON data."""
|
||
|
|
|
||
|
|
in_string = False
|
||
|
|
in_escape = False
|
||
|
|
in_unicode_escape = 0
|
||
|
|
in_whitespace = False
|
||
|
|
in_constant = False
|
||
|
|
in_number = False
|
||
|
|
in_float = False
|
||
|
|
in_punctuation = False
|
||
|
|
in_comment_single = False
|
||
|
|
in_comment_multiline = False
|
||
|
|
expecting_second_comment_opener = False # // or /*
|
||
|
|
expecting_second_comment_closer = False # */
|
||
|
|
|
||
|
|
start = 0
|
||
|
|
|
||
|
|
# The queue is used to store data that may need to be tokenized
|
||
|
|
# differently based on what follows. In particular, JSON object
|
||
|
|
# keys are tokenized differently than string values, but cannot
|
||
|
|
# be distinguished until punctuation is encountered outside the
|
||
|
|
# string.
|
||
|
|
#
|
||
|
|
# A ":" character after the string indicates that the string is
|
||
|
|
# an object key; any other character indicates the string is a
|
||
|
|
# regular string value.
|
||
|
|
#
|
||
|
|
# The queue holds tuples that contain the following data:
|
||
|
|
#
|
||
|
|
# (start_index, token_type, text)
|
||
|
|
#
|
||
|
|
# By default the token type of text in double quotes is
|
||
|
|
# String.Double. The token type will be replaced if a colon
|
||
|
|
# is encountered after the string closes.
|
||
|
|
#
|
||
|
|
queue = []
|
||
|
|
|
||
|
|
for stop, character in enumerate(text):
|
||
|
|
if in_string:
|
||
|
|
if in_unicode_escape:
|
||
|
|
if character in self.hexadecimals:
|
||
|
|
in_unicode_escape -= 1
|
||
|
|
if not in_unicode_escape:
|
||
|
|
in_escape = False
|
||
|
|
else:
|
||
|
|
in_unicode_escape = 0
|
||
|
|
in_escape = False
|
||
|
|
|
||
|
|
elif in_escape:
|
||
|
|
if character == 'u':
|
||
|
|
in_unicode_escape = 4
|
||
|
|
else:
|
||
|
|
in_escape = False
|
||
|
|
|
||
|
|
elif character == '\\':
|
||
|
|
in_escape = True
|
||
|
|
|
||
|
|
elif character == '"':
|
||
|
|
queue.append((start, String.Double, text[start:stop + 1]))
|
||
|
|
in_string = False
|
||
|
|
in_escape = False
|
||
|
|
in_unicode_escape = 0
|
||
|
|
|
||
|
|
continue
|
||
|
|
|
||
|
|
elif in_whitespace:
|
||
|
|
if character in self.whitespaces:
|
||
|
|
continue
|
||
|
|
|
||
|
|
if queue:
|
||
|
|
queue.append((start, Whitespace, text[start:stop]))
|
||
|
|
else:
|
||
|
|
yield start, Whitespace, text[start:stop]
|
||
|
|
in_whitespace = False
|
||
|
|
# Fall through so the new character can be evaluated.
|
||
|
|
|
||
|
|
elif in_constant:
|
||
|
|
if character in self.constants:
|
||
|
|
continue
|
||
|
|
|
||
|
|
yield start, Keyword.Constant, text[start:stop]
|
||
|
|
in_constant = False
|
||
|
|
# Fall through so the new character can be evaluated.
|
||
|
|
|
||
|
|
elif in_number:
|
||
|
|
if character in self.integers:
|
||
|
|
continue
|
||
|
|
elif character in self.floats:
|
||
|
|
in_float = True
|
||
|
|
continue
|
||
|
|
|
||
|
|
if in_float:
|
||
|
|
yield start, Number.Float, text[start:stop]
|
||
|
|
else:
|
||
|
|
yield start, Number.Integer, text[start:stop]
|
||
|
|
in_number = False
|
||
|
|
in_float = False
|
||
|
|
# Fall through so the new character can be evaluated.
|
||
|
|
|
||
|
|
elif in_punctuation:
|
||
|
|
if character in self.punctuations:
|
||
|
|
continue
|
||
|
|
|
||
|
|
yield start, Punctuation, text[start:stop]
|
||
|
|
in_punctuation = False
|
||
|
|
# Fall through so the new character can be evaluated.
|
||
|
|
|
||
|
|
elif in_comment_single:
|
||
|
|
if character != '\n':
|
||
|
|
continue
|
||
|
|
|
||
|
|
if queue:
|
||
|
|
queue.append((start, Comment.Single, text[start:stop]))
|
||
|
|
else:
|
||
|
|
yield start, Comment.Single, text[start:stop]
|
||
|
|
|
||
|
|
in_comment_single = False
|
||
|
|
# Fall through so the new character can be evaluated.
|
||
|
|
|
||
|
|
elif in_comment_multiline:
|
||
|
|
if character == '*':
|
||
|
|
expecting_second_comment_closer = True
|
||
|
|
elif expecting_second_comment_closer:
|
||
|
|
expecting_second_comment_closer = False
|
||
|
|
if character == '/':
|
||
|
|
if queue:
|
||
|
|
queue.append((start, Comment.Multiline, text[start:stop + 1]))
|
||
|
|
else:
|
||
|
|
yield start, Comment.Multiline, text[start:stop + 1]
|
||
|
|
|
||
|
|
in_comment_multiline = False
|
||
|
|
|
||
|
|
continue
|
||
|
|
|
||
|
|
elif expecting_second_comment_opener:
|
||
|
|
expecting_second_comment_opener = False
|
||
|
|
if character == '/':
|
||
|
|
in_comment_single = True
|
||
|
|
continue
|
||
|
|
elif character == '*':
|
||
|
|
in_comment_multiline = True
|
||
|
|
continue
|
||
|
|
|
||
|
|
# Exhaust the queue. Accept the existing token types.
|
||
|
|
yield from queue
|
||
|
|
queue.clear()
|
||
|
|
|
||
|
|
yield start, Error, text[start:stop]
|
||
|
|
# Fall through so the new character can be evaluated.
|
||
|
|
|
||
|
|
start = stop
|
||
|
|
|
||
|
|
if character == '"':
|
||
|
|
in_string = True
|
||
|
|
|
||
|
|
elif character in self.whitespaces:
|
||
|
|
in_whitespace = True
|
||
|
|
|
||
|
|
elif character in {'f', 'n', 't'}: # The first letters of true|false|null
|
||
|
|
# Exhaust the queue. Accept the existing token types.
|
||
|
|
yield from queue
|
||
|
|
queue.clear()
|
||
|
|
|
||
|
|
in_constant = True
|
||
|
|
|
||
|
|
elif character in self.integers:
|
||
|
|
# Exhaust the queue. Accept the existing token types.
|
||
|
|
yield from queue
|
||
|
|
queue.clear()
|
||
|
|
|
||
|
|
in_number = True
|
||
|
|
|
||
|
|
elif character == ':':
|
||
|
|
# Yield from the queue. Replace string token types.
|
||
|
|
for _start, _token, _text in queue:
|
||
|
|
# There can be only three types of tokens before a ':':
|
||
|
|
# Whitespace, Comment, or a quoted string.
|
||
|
|
#
|
||
|
|
# If it's a quoted string we emit Name.Tag.
|
||
|
|
# Otherwise, we yield the original token.
|
||
|
|
#
|
||
|
|
# In all other cases this would be invalid JSON,
|
||
|
|
# but this is not a validating JSON lexer, so it's OK.
|
||
|
|
if _token is String.Double:
|
||
|
|
yield _start, Name.Tag, _text
|
||
|
|
else:
|
||
|
|
yield _start, _token, _text
|
||
|
|
queue.clear()
|
||
|
|
|
||
|
|
in_punctuation = True
|
||
|
|
|
||
|
|
elif character in self.punctuations:
|
||
|
|
# Exhaust the queue. Accept the existing token types.
|
||
|
|
yield from queue
|
||
|
|
queue.clear()
|
||
|
|
|
||
|
|
in_punctuation = True
|
||
|
|
|
||
|
|
elif character == '/':
|
||
|
|
# This is the beginning of a comment.
|
||
|
|
expecting_second_comment_opener = True
|
||
|
|
|
||
|
|
else:
|
||
|
|
# Exhaust the queue. Accept the existing token types.
|
||
|
|
yield from queue
|
||
|
|
queue.clear()
|
||
|
|
|
||
|
|
yield start, Error, character
|
||
|
|
|
||
|
|
# Yield any remaining text.
|
||
|
|
yield from queue
|
||
|
|
if in_string:
|
||
|
|
yield start, Error, text[start:]
|
||
|
|
elif in_float:
|
||
|
|
yield start, Number.Float, text[start:]
|
||
|
|
elif in_number:
|
||
|
|
yield start, Number.Integer, text[start:]
|
||
|
|
elif in_constant:
|
||
|
|
yield start, Keyword.Constant, text[start:]
|
||
|
|
elif in_whitespace:
|
||
|
|
yield start, Whitespace, text[start:]
|
||
|
|
elif in_punctuation:
|
||
|
|
yield start, Punctuation, text[start:]
|
||
|
|
elif in_comment_single:
|
||
|
|
yield start, Comment.Single, text[start:]
|
||
|
|
elif in_comment_multiline:
|
||
|
|
yield start, Error, text[start:]
|
||
|
|
elif expecting_second_comment_opener:
|
||
|
|
yield start, Error, text[start:]
|
||
|
|
|
||
|
|
|
||
|
|
class JsonBareObjectLexer(JsonLexer):
|
||
|
|
"""
|
||
|
|
For JSON data structures (with missing object curly braces).
|
||
|
|
|
||
|
|
.. versionadded:: 2.2
|
||
|
|
|
||
|
|
.. deprecated:: 2.8.0
|
||
|
|
|
||
|
|
Behaves the same as `JsonLexer` now.
|
||
|
|
"""
|
||
|
|
|
||
|
|
name = 'JSONBareObject'
|
||
|
|
aliases = []
|
||
|
|
filenames = []
|
||
|
|
mimetypes = []
|
||
|
|
|
||
|
|
|
||
|
|
class JsonLdLexer(JsonLexer):
|
||
|
|
"""
|
||
|
|
For JSON-LD linked data.
|
||
|
|
|
||
|
|
.. versionadded:: 2.0
|
||
|
|
"""
|
||
|
|
|
||
|
|
name = 'JSON-LD'
|
||
|
|
url = 'https://json-ld.org/'
|
||
|
|
aliases = ['jsonld', 'json-ld']
|
||
|
|
filenames = ['*.jsonld']
|
||
|
|
mimetypes = ['application/ld+json']
|
||
|
|
|
||
|
|
json_ld_keywords = {
|
||
|
|
'"@%s"' % keyword
|
||
|
|
for keyword in (
|
||
|
|
'base',
|
||
|
|
'container',
|
||
|
|
'context',
|
||
|
|
'direction',
|
||
|
|
'graph',
|
||
|
|
'id',
|
||
|
|
'import',
|
||
|
|
'included',
|
||
|
|
'index',
|
||
|
|
'json',
|
||
|
|
'language',
|
||
|
|
'list',
|
||
|
|
'nest',
|
||
|
|
'none',
|
||
|
|
'prefix',
|
||
|
|
'propagate',
|
||
|
|
'protected',
|
||
|
|
'reverse',
|
||
|
|
'set',
|
||
|
|
'type',
|
||
|
|
'value',
|
||
|
|
'version',
|
||
|
|
'vocab',
|
||
|
|
)
|
||
|
|
}
|
||
|
|
|
||
|
|
def get_tokens_unprocessed(self, text):
|
||
|
|
for start, token, value in super().get_tokens_unprocessed(text):
|
||
|
|
if token is Name.Tag and value in self.json_ld_keywords:
|
||
|
|
yield start, Name.Decorator, value
|
||
|
|
else:
|
||
|
|
yield start, token, value
|