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annotate planemo/lib/python3.7/site-packages/docutils/core.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
parents d30785e31577
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1 # $Id: core.py 8367 2019-08-27 12:09:56Z milde $
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2 # Author: David Goodger <goodger@python.org>
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3 # Copyright: This module has been placed in the public domain.
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4
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5 """
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6 Calling the ``publish_*`` convenience functions (or instantiating a
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7 `Publisher` object) with component names will result in default
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8 behavior. For custom behavior (setting component options), create
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9 custom component objects first, and pass *them* to
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10 ``publish_*``/`Publisher`. See `The Docutils Publisher`_.
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11
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12 .. _The Docutils Publisher: http://docutils.sf.net/docs/api/publisher.html
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13 """
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14 from __future__ import print_function
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15
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16 __docformat__ = 'reStructuredText'
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17
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18 import sys
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19 import pprint
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20 from docutils import __version__, __version_details__, SettingsSpec
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21 from docutils import frontend, io, utils, readers, writers
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22 from docutils.frontend import OptionParser
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23 from docutils.transforms import Transformer
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24 from docutils.utils.error_reporting import ErrorOutput, ErrorString
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25 import docutils.readers.doctree
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26
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27 class Publisher(object):
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28
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29 """
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30 A facade encapsulating the high-level logic of a Docutils system.
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31 """
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32
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33 def __init__(self, reader=None, parser=None, writer=None,
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34 source=None, source_class=io.FileInput,
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35 destination=None, destination_class=io.FileOutput,
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36 settings=None):
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37 """
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38 Initial setup. If any of `reader`, `parser`, or `writer` are not
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39 specified, the corresponding ``set_...`` method should be called with
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40 a component name (`set_reader` sets the parser as well).
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41 """
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42
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43 self.document = None
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44 """The document tree (`docutils.nodes` objects)."""
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45
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46 self.reader = reader
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47 """A `docutils.readers.Reader` instance."""
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48
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49 self.parser = parser
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50 """A `docutils.parsers.Parser` instance."""
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51
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52 self.writer = writer
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53 """A `docutils.writers.Writer` instance."""
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54
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55 for component in 'reader', 'parser', 'writer':
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56 assert not isinstance(getattr(self, component), str), (
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57 'passed string "%s" as "%s" parameter; pass an instance, '
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58 'or use the "%s_name" parameter instead (in '
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59 'docutils.core.publish_* convenience functions).'
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60 % (getattr(self, component), component, component))
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61
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62 self.source = source
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63 """The source of input data, a `docutils.io.Input` instance."""
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64
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65 self.source_class = source_class
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66 """The class for dynamically created source objects."""
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67
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68 self.destination = destination
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69 """The destination for docutils output, a `docutils.io.Output`
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70 instance."""
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71
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72 self.destination_class = destination_class
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73 """The class for dynamically created destination objects."""
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74
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75 self.settings = settings
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76 """An object containing Docutils settings as instance attributes.
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77 Set by `self.process_command_line()` or `self.get_settings()`."""
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78
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79 self._stderr = ErrorOutput()
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80
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81 def set_reader(self, reader_name, parser, parser_name):
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82 """Set `self.reader` by name."""
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83 reader_class = readers.get_reader_class(reader_name)
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84 self.reader = reader_class(parser, parser_name)
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85 self.parser = self.reader.parser
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86
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87 def set_writer(self, writer_name):
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88 """Set `self.writer` by name."""
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89 writer_class = writers.get_writer_class(writer_name)
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90 self.writer = writer_class()
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91
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92 def set_components(self, reader_name, parser_name, writer_name):
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93 if self.reader is None:
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94 self.set_reader(reader_name, self.parser, parser_name)
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95 if self.parser is None:
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96 if self.reader.parser is None:
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97 self.reader.set_parser(parser_name)
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98 self.parser = self.reader.parser
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99 if self.writer is None:
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100 self.set_writer(writer_name)
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101
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102 def setup_option_parser(self, usage=None, description=None,
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103 settings_spec=None, config_section=None,
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104 **defaults):
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105 if config_section:
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106 if not settings_spec:
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107 settings_spec = SettingsSpec()
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108 settings_spec.config_section = config_section
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109 parts = config_section.split()
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110 if len(parts) > 1 and parts[-1] == 'application':
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111 settings_spec.config_section_dependencies = ['applications']
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112 #@@@ Add self.source & self.destination to components in future?
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113 option_parser = OptionParser(
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114 components=(self.parser, self.reader, self.writer, settings_spec),
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115 defaults=defaults, read_config_files=True,
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116 usage=usage, description=description)
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117 return option_parser
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118
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119 def get_settings(self, usage=None, description=None,
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120 settings_spec=None, config_section=None, **defaults):
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121 """
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122 Set and return default settings (overrides in `defaults` dict).
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123
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124 Set components first (`self.set_reader` & `self.set_writer`).
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125 Explicitly setting `self.settings` disables command line option
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126 processing from `self.publish()`.
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127 """
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128 option_parser = self.setup_option_parser(
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129 usage, description, settings_spec, config_section, **defaults)
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130 self.settings = option_parser.get_default_values()
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131 return self.settings
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132
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133 def process_programmatic_settings(self, settings_spec,
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134 settings_overrides,
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135 config_section):
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136 if self.settings is None:
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137 defaults = (settings_overrides or {}).copy()
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138 # Propagate exceptions by default when used programmatically:
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139 defaults.setdefault('traceback', True)
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140 self.get_settings(settings_spec=settings_spec,
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141 config_section=config_section,
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142 **defaults)
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143
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144 def process_command_line(self, argv=None, usage=None, description=None,
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145 settings_spec=None, config_section=None,
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146 **defaults):
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147 """
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148 Pass an empty list to `argv` to avoid reading `sys.argv` (the
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149 default).
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150
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151 Set components first (`self.set_reader` & `self.set_writer`).
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152 """
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153 option_parser = self.setup_option_parser(
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154 usage, description, settings_spec, config_section, **defaults)
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155 if argv is None:
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156 argv = sys.argv[1:]
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157 # converting to Unicode (Python 3 does this automatically):
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158 if sys.version_info < (3, 0):
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159 # TODO: make this failsafe and reversible?
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160 argv_encoding = (frontend.locale_encoding or 'ascii')
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161 argv = [a.decode(argv_encoding) for a in argv]
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162 self.settings = option_parser.parse_args(argv)
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163
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164 def set_io(self, source_path=None, destination_path=None):
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165 if self.source is None:
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166 self.set_source(source_path=source_path)
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167 if self.destination is None:
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168 self.set_destination(destination_path=destination_path)
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169
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170 def set_source(self, source=None, source_path=None):
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171 if source_path is None:
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172 source_path = self.settings._source
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173 else:
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174 self.settings._source = source_path
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175 # Raise IOError instead of system exit with `tracback == True`
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176 # TODO: change io.FileInput's default behaviour and remove this hack
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177 try:
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178 self.source = self.source_class(
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179 source=source, source_path=source_path,
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180 encoding=self.settings.input_encoding)
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181 except TypeError:
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182 self.source = self.source_class(
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183 source=source, source_path=source_path,
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184 encoding=self.settings.input_encoding)
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185
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186 def set_destination(self, destination=None, destination_path=None):
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187 if destination_path is None:
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188 destination_path = self.settings._destination
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189 else:
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190 self.settings._destination = destination_path
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191 self.destination = self.destination_class(
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192 destination=destination, destination_path=destination_path,
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193 encoding=self.settings.output_encoding,
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194 error_handler=self.settings.output_encoding_error_handler)
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195
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196 def apply_transforms(self):
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197 self.document.transformer.populate_from_components(
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198 (self.source, self.reader, self.reader.parser, self.writer,
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199 self.destination))
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200 self.document.transformer.apply_transforms()
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201
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202 def publish(self, argv=None, usage=None, description=None,
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203 settings_spec=None, settings_overrides=None,
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204 config_section=None, enable_exit_status=False):
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205 """
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206 Process command line options and arguments (if `self.settings` not
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207 already set), run `self.reader` and then `self.writer`. Return
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208 `self.writer`'s output.
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209 """
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210 exit = None
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211 try:
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212 if self.settings is None:
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213 self.process_command_line(
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214 argv, usage, description, settings_spec, config_section,
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215 **(settings_overrides or {}))
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216 self.set_io()
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217 self.document = self.reader.read(self.source, self.parser,
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218 self.settings)
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219 self.apply_transforms()
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220 output = self.writer.write(self.document, self.destination)
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221 self.writer.assemble_parts()
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222 except SystemExit as error:
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223 exit = 1
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224 exit_status = error.code
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225 except Exception as error:
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226 if not self.settings: # exception too early to report nicely
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227 raise
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228 if self.settings.traceback: # Propagate exceptions?
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229 self.debugging_dumps()
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230 raise
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231 self.report_Exception(error)
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232 exit = True
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233 exit_status = 1
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234 self.debugging_dumps()
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235 if (enable_exit_status and self.document
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236 and (self.document.reporter.max_level
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237 >= self.settings.exit_status_level)):
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238 sys.exit(self.document.reporter.max_level + 10)
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239 elif exit:
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240 sys.exit(exit_status)
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241 return output
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242
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243 def debugging_dumps(self):
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244 if not self.document:
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245 return
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246 if self.settings.dump_settings:
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247 print('\n::: Runtime settings:', file=self._stderr)
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248 print(pprint.pformat(self.settings.__dict__), file=self._stderr)
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249 if self.settings.dump_internals:
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250 print('\n::: Document internals:', file=self._stderr)
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251 print(pprint.pformat(self.document.__dict__), file=self._stderr)
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252 if self.settings.dump_transforms:
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253 print('\n::: Transforms applied:', file=self._stderr)
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254 print(' (priority, transform class, pending node details, '
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255 'keyword args)', file=self._stderr)
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256 print(pprint.pformat(
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257 [(priority, '%s.%s' % (xclass.__module__, xclass.__name__),
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258 pending and pending.details, kwargs)
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259 for priority, xclass, pending, kwargs
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260 in self.document.transformer.applied]), file=self._stderr)
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261 if self.settings.dump_pseudo_xml:
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262 print('\n::: Pseudo-XML:', file=self._stderr)
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263 print(self.document.pformat().encode(
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264 'raw_unicode_escape'), file=self._stderr)
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265
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266 def report_Exception(self, error):
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267 if isinstance(error, utils.SystemMessage):
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268 self.report_SystemMessage(error)
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269 elif isinstance(error, UnicodeEncodeError):
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270 self.report_UnicodeError(error)
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271 elif isinstance(error, io.InputError):
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272 self._stderr.write(u'Unable to open source file for reading:\n'
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273 u' %s\n' % ErrorString(error))
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274 elif isinstance(error, io.OutputError):
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275 self._stderr.write(
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276 u'Unable to open destination file for writing:\n'
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277 u' %s\n' % ErrorString(error))
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278 else:
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279 print(u'%s' % ErrorString(error), file=self._stderr)
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280 print(("""\
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281 Exiting due to error. Use "--traceback" to diagnose.
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282 Please report errors to <docutils-users@lists.sf.net>.
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283 Include "--traceback" output, Docutils version (%s%s),
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284 Python version (%s), your OS type & version, and the
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285 command line used.""" % (__version__,
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286 docutils.__version_details__ and
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287 ' [%s]'%docutils.__version_details__ or '',
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288 sys.version.split()[0])), file=self._stderr)
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289
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290 def report_SystemMessage(self, error):
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291 print('Exiting due to level-%s (%s) system message.' % (
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292 error.level, utils.Reporter.levels[error.level]),
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293 file=self._stderr)
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294
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295 def report_UnicodeError(self, error):
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296 data = error.object[error.start:error.end]
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297 self._stderr.write(
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298 '%s\n'
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299 '\n'
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300 'The specified output encoding (%s) cannot\n'
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301 'handle all of the output.\n'
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302 'Try setting "--output-encoding-error-handler" to\n'
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303 '\n'
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304 '* "xmlcharrefreplace" (for HTML & XML output);\n'
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305 ' the output will contain "%s" and should be usable.\n'
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306 '* "backslashreplace" (for other output formats);\n'
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307 ' look for "%s" in the output.\n'
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308 '* "replace"; look for "?" in the output.\n'
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309 '\n'
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310 '"--output-encoding-error-handler" is currently set to "%s".\n'
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311 '\n'
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312 'Exiting due to error. Use "--traceback" to diagnose.\n'
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313 'If the advice above doesn\'t eliminate the error,\n'
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314 'please report it to <docutils-users@lists.sf.net>.\n'
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315 'Include "--traceback" output, Docutils version (%s),\n'
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316 'Python version (%s), your OS type & version, and the\n'
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317 'command line used.\n'
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318 % (ErrorString(error),
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319 self.settings.output_encoding,
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320 data.encode('ascii', 'xmlcharrefreplace'),
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321 data.encode('ascii', 'backslashreplace'),
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322 self.settings.output_encoding_error_handler,
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323 __version__, sys.version.split()[0]))
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324
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325 default_usage = '%prog [options] [<source> [<destination>]]'
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326 default_description = ('Reads from <source> (default is stdin) and writes to '
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327 '<destination> (default is stdout). See '
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328 '<http://docutils.sf.net/docs/user/config.html> for '
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329 'the full reference.')
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330
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331 def publish_cmdline(reader=None, reader_name='standalone',
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332 parser=None, parser_name='restructuredtext',
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333 writer=None, writer_name='pseudoxml',
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334 settings=None, settings_spec=None,
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335 settings_overrides=None, config_section=None,
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336 enable_exit_status=True, argv=None,
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337 usage=default_usage, description=default_description):
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338 """
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339 Set up & run a `Publisher` for command-line-based file I/O (input and
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340 output file paths taken automatically from the command line). Return the
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341 encoded string output also.
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342
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343 Parameters: see `publish_programmatically` for the remainder.
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344
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345 - `argv`: Command-line argument list to use instead of ``sys.argv[1:]``.
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346 - `usage`: Usage string, output if there's a problem parsing the command
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347 line.
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348 - `description`: Program description, output for the "--help" option
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349 (along with command-line option descriptions).
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350 """
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351 pub = Publisher(reader, parser, writer, settings=settings)
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352 pub.set_components(reader_name, parser_name, writer_name)
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353 output = pub.publish(
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354 argv, usage, description, settings_spec, settings_overrides,
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355 config_section=config_section, enable_exit_status=enable_exit_status)
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356 return output
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357
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358 def publish_file(source=None, source_path=None,
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359 destination=None, destination_path=None,
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360 reader=None, reader_name='standalone',
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361 parser=None, parser_name='restructuredtext',
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362 writer=None, writer_name='pseudoxml',
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363 settings=None, settings_spec=None, settings_overrides=None,
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364 config_section=None, enable_exit_status=False):
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365 """
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366 Set up & run a `Publisher` for programmatic use with file-like I/O.
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367 Return the encoded string output also.
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368
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369 Parameters: see `publish_programmatically`.
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370 """
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371 output, pub = publish_programmatically(
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372 source_class=io.FileInput, source=source, source_path=source_path,
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373 destination_class=io.FileOutput,
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374 destination=destination, destination_path=destination_path,
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375 reader=reader, reader_name=reader_name,
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376 parser=parser, parser_name=parser_name,
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377 writer=writer, writer_name=writer_name,
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378 settings=settings, settings_spec=settings_spec,
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379 settings_overrides=settings_overrides,
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380 config_section=config_section,
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381 enable_exit_status=enable_exit_status)
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382 return output
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383
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384 def publish_string(source, source_path=None, destination_path=None,
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385 reader=None, reader_name='standalone',
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386 parser=None, parser_name='restructuredtext',
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387 writer=None, writer_name='pseudoxml',
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388 settings=None, settings_spec=None,
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389 settings_overrides=None, config_section=None,
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390 enable_exit_status=False):
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391 """
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392 Set up & run a `Publisher` for programmatic use with string I/O. Return
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393 the encoded string or Unicode string output.
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394
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395 For encoded string output, be sure to set the 'output_encoding' setting to
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396 the desired encoding. Set it to 'unicode' for unencoded Unicode string
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397 output. Here's one way::
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398
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399 publish_string(..., settings_overrides={'output_encoding': 'unicode'})
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400
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401 Similarly for Unicode string input (`source`)::
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402
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403 publish_string(..., settings_overrides={'input_encoding': 'unicode'})
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404
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405 Parameters: see `publish_programmatically`.
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406 """
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407 output, pub = publish_programmatically(
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408 source_class=io.StringInput, source=source, source_path=source_path,
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409 destination_class=io.StringOutput,
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410 destination=None, destination_path=destination_path,
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411 reader=reader, reader_name=reader_name,
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412 parser=parser, parser_name=parser_name,
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413 writer=writer, writer_name=writer_name,
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414 settings=settings, settings_spec=settings_spec,
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415 settings_overrides=settings_overrides,
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416 config_section=config_section,
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417 enable_exit_status=enable_exit_status)
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418 return output
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419
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420 def publish_parts(source, source_path=None, source_class=io.StringInput,
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421 destination_path=None,
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422 reader=None, reader_name='standalone',
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423 parser=None, parser_name='restructuredtext',
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424 writer=None, writer_name='pseudoxml',
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425 settings=None, settings_spec=None,
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426 settings_overrides=None, config_section=None,
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427 enable_exit_status=False):
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428 """
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429 Set up & run a `Publisher`, and return a dictionary of document parts.
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430 Dictionary keys are the names of parts, and values are Unicode strings;
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431 encoding is up to the client. For programmatic use with string I/O.
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432
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433 For encoded string input, be sure to set the 'input_encoding' setting to
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434 the desired encoding. Set it to 'unicode' for unencoded Unicode string
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435 input. Here's how::
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436
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437 publish_parts(..., settings_overrides={'input_encoding': 'unicode'})
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438
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439 Parameters: see `publish_programmatically`.
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440 """
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441 output, pub = publish_programmatically(
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442 source=source, source_path=source_path, source_class=source_class,
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443 destination_class=io.StringOutput,
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444 destination=None, destination_path=destination_path,
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445 reader=reader, reader_name=reader_name,
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446 parser=parser, parser_name=parser_name,
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447 writer=writer, writer_name=writer_name,
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448 settings=settings, settings_spec=settings_spec,
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449 settings_overrides=settings_overrides,
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450 config_section=config_section,
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451 enable_exit_status=enable_exit_status)
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452 return pub.writer.parts
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453
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454 def publish_doctree(source, source_path=None,
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455 source_class=io.StringInput,
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456 reader=None, reader_name='standalone',
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457 parser=None, parser_name='restructuredtext',
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458 settings=None, settings_spec=None,
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459 settings_overrides=None, config_section=None,
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460 enable_exit_status=False):
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461 """
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462 Set up & run a `Publisher` for programmatic use with string I/O.
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463 Return the document tree.
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464
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465 For encoded string input, be sure to set the 'input_encoding' setting to
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466 the desired encoding. Set it to 'unicode' for unencoded Unicode string
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467 input. Here's one way::
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468
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469 publish_doctree(..., settings_overrides={'input_encoding': 'unicode'})
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470
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471 Parameters: see `publish_programmatically`.
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472 """
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473 pub = Publisher(reader=reader, parser=parser, writer=None,
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474 settings=settings,
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475 source_class=source_class,
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476 destination_class=io.NullOutput)
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477 pub.set_components(reader_name, parser_name, 'null')
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478 pub.process_programmatic_settings(
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479 settings_spec, settings_overrides, config_section)
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480 pub.set_source(source, source_path)
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481 pub.set_destination(None, None)
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482 output = pub.publish(enable_exit_status=enable_exit_status)
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483 return pub.document
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484
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485 def publish_from_doctree(document, destination_path=None,
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486 writer=None, writer_name='pseudoxml',
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487 settings=None, settings_spec=None,
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488 settings_overrides=None, config_section=None,
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489 enable_exit_status=False):
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490 """
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491 Set up & run a `Publisher` to render from an existing document
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492 tree data structure, for programmatic use with string I/O. Return
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493 the encoded string output.
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494
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495 Note that document.settings is overridden; if you want to use the settings
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496 of the original `document`, pass settings=document.settings.
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497
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498 Also, new document.transformer and document.reporter objects are
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499 generated.
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500
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501 For encoded string output, be sure to set the 'output_encoding' setting to
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502 the desired encoding. Set it to 'unicode' for unencoded Unicode string
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503 output. Here's one way::
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504
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505 publish_from_doctree(
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506 ..., settings_overrides={'output_encoding': 'unicode'})
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507
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508 Parameters: `document` is a `docutils.nodes.document` object, an existing
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509 document tree.
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510
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511 Other parameters: see `publish_programmatically`.
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512 """
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513 reader = docutils.readers.doctree.Reader(parser_name='null')
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514 pub = Publisher(reader, None, writer,
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515 source=io.DocTreeInput(document),
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516 destination_class=io.StringOutput, settings=settings)
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517 if not writer and writer_name:
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518 pub.set_writer(writer_name)
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519 pub.process_programmatic_settings(
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520 settings_spec, settings_overrides, config_section)
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521 pub.set_destination(None, destination_path)
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522 return pub.publish(enable_exit_status=enable_exit_status)
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523
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524 def publish_cmdline_to_binary(reader=None, reader_name='standalone',
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525 parser=None, parser_name='restructuredtext',
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526 writer=None, writer_name='pseudoxml',
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527 settings=None, settings_spec=None,
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528 settings_overrides=None, config_section=None,
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529 enable_exit_status=True, argv=None,
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530 usage=default_usage, description=default_description,
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531 destination=None, destination_class=io.BinaryFileOutput
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532 ):
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533 """
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534 Set up & run a `Publisher` for command-line-based file I/O (input and
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535 output file paths taken automatically from the command line). Return the
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536 encoded string output also.
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537
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538 This is just like publish_cmdline, except that it uses
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539 io.BinaryFileOutput instead of io.FileOutput.
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540
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541 Parameters: see `publish_programmatically` for the remainder.
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542
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543 - `argv`: Command-line argument list to use instead of ``sys.argv[1:]``.
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544 - `usage`: Usage string, output if there's a problem parsing the command
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545 line.
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546 - `description`: Program description, output for the "--help" option
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547 (along with command-line option descriptions).
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548 """
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549 pub = Publisher(reader, parser, writer, settings=settings,
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550 destination_class=destination_class)
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551 pub.set_components(reader_name, parser_name, writer_name)
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552 output = pub.publish(
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553 argv, usage, description, settings_spec, settings_overrides,
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554 config_section=config_section, enable_exit_status=enable_exit_status)
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555 return output
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556
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557 def publish_programmatically(source_class, source, source_path,
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558 destination_class, destination, destination_path,
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559 reader, reader_name,
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560 parser, parser_name,
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561 writer, writer_name,
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562 settings, settings_spec,
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563 settings_overrides, config_section,
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564 enable_exit_status):
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565 """
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566 Set up & run a `Publisher` for custom programmatic use. Return the
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567 encoded string output and the Publisher object.
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568
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569 Applications should not need to call this function directly. If it does
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570 seem to be necessary to call this function directly, please write to the
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571 Docutils-develop mailing list
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572 <http://docutils.sf.net/docs/user/mailing-lists.html#docutils-develop>.
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573
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574 Parameters:
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575
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576 * `source_class` **required**: The class for dynamically created source
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577 objects. Typically `io.FileInput` or `io.StringInput`.
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578
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579 * `source`: Type depends on `source_class`:
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580
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581 - If `source_class` is `io.FileInput`: Either a file-like object
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582 (must have 'read' and 'close' methods), or ``None``
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583 (`source_path` is opened). If neither `source` nor
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584 `source_path` are supplied, `sys.stdin` is used.
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585
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586 - If `source_class` is `io.StringInput` **required**: The input
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587 string, either an encoded 8-bit string (set the
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588 'input_encoding' setting to the correct encoding) or a Unicode
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589 string (set the 'input_encoding' setting to 'unicode').
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590
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591 * `source_path`: Type depends on `source_class`:
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592
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593 - `io.FileInput`: Path to the input file, opened if no `source`
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594 supplied.
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595
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596 - `io.StringInput`: Optional. Path to the file or object that produced
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597 `source`. Only used for diagnostic output.
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598
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599 * `destination_class` **required**: The class for dynamically created
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600 destination objects. Typically `io.FileOutput` or `io.StringOutput`.
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601
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602 * `destination`: Type depends on `destination_class`:
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603
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604 - `io.FileOutput`: Either a file-like object (must have 'write' and
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605 'close' methods), or ``None`` (`destination_path` is opened). If
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606 neither `destination` nor `destination_path` are supplied,
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607 `sys.stdout` is used.
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608
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609 - `io.StringOutput`: Not used; pass ``None``.
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610
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611 * `destination_path`: Type depends on `destination_class`:
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612
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613 - `io.FileOutput`: Path to the output file. Opened if no `destination`
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614 supplied.
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615
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616 - `io.StringOutput`: Path to the file or object which will receive the
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617 output; optional. Used for determining relative paths (stylesheets,
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618 source links, etc.).
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619
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620 * `reader`: A `docutils.readers.Reader` object.
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621
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622 * `reader_name`: Name or alias of the Reader class to be instantiated if
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623 no `reader` supplied.
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624
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625 * `parser`: A `docutils.parsers.Parser` object.
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626
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627 * `parser_name`: Name or alias of the Parser class to be instantiated if
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628 no `parser` supplied.
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629
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630 * `writer`: A `docutils.writers.Writer` object.
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631
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632 * `writer_name`: Name or alias of the Writer class to be instantiated if
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633 no `writer` supplied.
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634
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635 * `settings`: A runtime settings (`docutils.frontend.Values`) object, for
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636 dotted-attribute access to runtime settings. It's the end result of the
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637 `SettingsSpec`, config file, and option processing. If `settings` is
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638 passed, it's assumed to be complete and no further setting/config/option
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639 processing is done.
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640
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641 * `settings_spec`: A `docutils.SettingsSpec` subclass or object. Provides
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642 extra application-specific settings definitions independently of
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643 components. In other words, the application becomes a component, and
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644 its settings data is processed along with that of the other components.
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645 Used only if no `settings` specified.
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646
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647 * `settings_overrides`: A dictionary containing application-specific
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648 settings defaults that override the defaults of other components.
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649 Used only if no `settings` specified.
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650
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651 * `config_section`: A string, the name of the configuration file section
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652 for this application. Overrides the ``config_section`` attribute
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653 defined by `settings_spec`. Used only if no `settings` specified.
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654
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655 * `enable_exit_status`: Boolean; enable exit status at end of processing?
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656 """
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657 pub = Publisher(reader, parser, writer, settings=settings,
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658 source_class=source_class,
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659 destination_class=destination_class)
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660 pub.set_components(reader_name, parser_name, writer_name)
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661 pub.process_programmatic_settings(
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662 settings_spec, settings_overrides, config_section)
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663 pub.set_source(source, source_path)
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664 pub.set_destination(destination, destination_path)
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665 output = pub.publish(enable_exit_status=enable_exit_status)
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666 return output, pub