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# -*- coding: utf-8 -*-
from __future__ import unicode_literals
import os.path
from docutils import io, nodes, statemachine, utils
from docutils.utils.error_reporting import SafeString, ErrorString
from docutils.parsers.rst import directives, Directive
from pelican.rstdirectives import Pygments
class CodeInclude(Directive):
required_arguments = 1
optional_arguments = 0
final_argument_whitespace = True
option_spec = {'lexer': directives.unchanged,
'encoding': directives.encoding,
'tab-width': int,
'start-line': int,
'end-line': int}
def run(self):
"""Include a file as part of the content of this reST file."""
if not self.state.document.settings.file_insertion_enabled:
raise self.warning('"%s" directive disabled.' % self.name)
source = self.state_machine.input_lines.source(
self.lineno - self.state_machine.input_offset - 1)
source_dir = os.path.dirname(os.path.abspath(source))
path = directives.path(self.arguments[0])
path = os.path.normpath(os.path.join(source_dir, path))
path = utils.relative_path(None, path)
path = nodes.reprunicode(path)
encoding = self.options.get(
'encoding', self.state.document.settings.input_encoding)
e_handler = self.state.document.settings.input_encoding_error_handler
tab_width = self.options.get(
'tab-width', self.state.document.settings.tab_width)
try:
self.state.document.settings.record_dependencies.add(path)
include_file = io.FileInput(source_path=path,
encoding=encoding,
error_handler=e_handler)
except UnicodeEncodeError as error:
raise self.severe('Problems with "%s" directive path:\n'
'Cannot encode input file path "%s" '
'(wrong locale?).' %
(self.name, SafeString(path)))
except IOError as error:
raise self.severe('Problems with "%s" directive path:\n%s.' %
(self.name, ErrorString(error)))
startline = self.options.get('start-line', None)
endline = self.options.get('end-line', None)
try:
if startline or (endline is not None):
lines = include_file.readlines()
rawtext = ''.join(lines[startline:endline])
else:
rawtext = include_file.read()
except UnicodeError as error:
raise self.severe('Problem with "%s" directive:\n%s' %
(self.name, ErrorString(error)))
include_lines = statemachine.string2lines(rawtext, tab_width,
convert_whitespace=True)
# default lexer to 'text'
lexer = self.options.get('lexer', 'text')
self.options['source'] = path
codeblock = Pygments(self.name,
[lexer], # arguments
{}, # no options for this directive
include_lines, # content
self.lineno,
self.content_offset,
self.block_text,
self.state,
self.state_machine)
return codeblock.run()
def register():
directives.register_directive('code-include', CodeInclude)