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+# -*- coding: utf-8 -*-
+#
+# FRR documentation build configuration file, created by
+# sphinx-quickstart on Tue Jan 31 16:00:52 2017.
+#
+# This file is execfile()d with the current directory set to its
+# containing dir.
+#
+# Note that not all possible configuration values are present in this
+# autogenerated file.
+#
+# All configuration values have a default; values that are commented out
+# serve to show the default.
+
+import sys
+import os
+import re
+import pygments
+import sphinx
+from sphinx.highlighting import lexers
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+# sys.path.insert(0, os.path.abspath('.'))
+
+# -- General configuration ------------------------------------------------
+
+# If your documentation needs a minimal Sphinx version, state it here.
+needs_sphinx = "1.0"
+
+# prolog for various variable substitutions
+rst_prolog = ""
+
+# Add any Sphinx extension module names here, as strings. They can be
+# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
+# ones.
+extensions = ["sphinx.ext.todo"]
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path = ["_templates"]
+
+# The suffix(es) of source filenames.
+# You can specify multiple suffix as a list of string:
+# source_suffix = ['.rst']
+source_suffix = ".rst"
+
+# The encoding of source files.
+# source_encoding = 'utf-8-sig'
+
+# The master toctree document.
+master_doc = "index"
+
+# General information about the project.
+project = u"FRR"
+copyright = u"2017, FRR"
+author = u"FRR authors"
+
+# The version info for the project you're documenting, acts as replacement for
+# |version| and |release|, also used in various other places throughout the
+# built documents.
+
+# The short X.Y version.
+version = u"?.?"
+# The full version, including alpha/beta/rc tags.
+release = u"?.?-?"
+
+
+# -----------------------------------------------------------------------------
+# Extract values from codebase for substitution into docs.
+# -----------------------------------------------------------------------------
+
+# Various installation prefixes. Values are extracted from config.status.
+# Reasonable defaults are set in case that file does not exist.
+replace_vars = {
+    "AUTHORS": author,
+    "COPYRIGHT_YEAR": "1999-2005",
+    "COPYRIGHT_STR": "Copyright (c) 1999-2005",
+    "PACKAGE_NAME": project.lower(),
+    "PACKAGE_TARNAME": project.lower(),
+    "PACKAGE_STRING": project.lower() + " latest",
+    "PACKAGE_URL": "https://frrouting.org/",
+    "PACKAGE_VERSION": "latest",
+    "INSTALL_PREFIX_ETC": "/etc/frr",
+    "INSTALL_PREFIX_SBIN": "/usr/lib/frr",
+    "INSTALL_PREFIX_STATE": "/var/run/frr",
+    "INSTALL_PREFIX_MODULES": "/usr/lib/frr/modules",
+    "INSTALL_USER": "frr",
+    "INSTALL_GROUP": "frr",
+    "INSTALL_VTY_GROUP": "frrvty",
+    "GROUP": "frr",
+    "USER": "frr",
+}
+
+# extract version information, installation location, other stuff we need to
+# use when building final documents
+val = re.compile('^S\["([^"]+)"\]="(.*)"$')
+try:
+    with open("../../config.status", "r") as cfgstatus:
+        for ln in cfgstatus.readlines():
+            m = val.match(ln)
+            if not m or m.group(1) not in replace_vars.keys():
+                continue
+            replace_vars[m.group(1)] = m.group(2)
+except IOError:
+    # if config.status doesn't exist, just ignore it
+    pass
+
+# manually fill out some of these we can't get from config.status
+replace_vars["COPYRIGHT_STR"] = "Copyright (c)"
+replace_vars["COPYRIGHT_STR"] += " {0}".format(replace_vars["COPYRIGHT_YEAR"])
+replace_vars["COPYRIGHT_STR"] += " {0}".format(replace_vars["AUTHORS"])
+release = replace_vars["PACKAGE_VERSION"]
+version = release.split("-")[0]
+
+# add substitutions to prolog
+for key, value in replace_vars.items():
+    rst_prolog += ".. |{0}| replace:: {1}\n".format(key, value)
+
+# There are two options for replacing |today|: either, you set today to some
+# non-false value, then it is used:
+# today = ''
+# Else, today_fmt is used as the format for a strftime call.
+# today_fmt = '%B %d, %Y'
+
+# List of patterns, relative to source directory, that match files and
+# directories to ignore when looking for source files.
+exclude_patterns = [
+    "_build",
+    "rpki.rst",
+    "routeserver.rst",
+    "ospf_fundamentals.rst",
+    "flowspec.rst",
+    "snmptrap.rst",
+    "wecmp_linkbw.rst",
+]
+
+# The reST default role (used for this markup: `text`) to use for all
+# documents.
+# default_role = None
+
+# If true, '()' will be appended to :func: etc. cross-reference text.
+# add_function_parentheses = True
+
+# If true, the current module name will be prepended to all description
+# unit titles (such as .. function::).
+# add_module_names = True
+
+# If true, sectionauthor and moduleauthor directives will be shown in the
+# output. They are ignored by default.
+# show_authors = False
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = "sphinx"
+
+# A list of ignored prefixes for module index sorting.
+# modindex_common_prefix = []
+
+# If true, keep warnings as "system message" paragraphs in the built documents.
+# keep_warnings = False
+
+# If true, `todo` and `todoList` produce output, else they produce nothing.
+todo_include_todos = True
+
+
+# -- Options for HTML output ----------------------------------------------
+
+# The theme to use for HTML and HTML Help pages.  See the documentation for
+# a list of builtin themes.
+html_theme = "default"
+
+try:
+    import sphinx_rtd_theme
+
+    html_theme = "sphinx_rtd_theme"
+except ImportError:
+    pass
+
+# Theme options are theme-specific and customize the look and feel of a theme
+# further.  For a list of options available for each theme, see the
+# documentation.
+# html_theme_options = {
+#    'sidebarbgcolor': '#374249'
+# }
+
+# Add any paths that contain custom themes here, relative to this directory.
+# html_theme_path = []
+
+# The name for this set of Sphinx documents.  If None, it defaults to
+# "<project> v<release> documentation".
+# html_title = None
+
+# A shorter title for the navigation bar.  Default is the same as html_title.
+# html_short_title = None
+
+# The name of an image file (relative to this directory) to place at the top
+# of the sidebar.
+html_logo = "../figures/frr-icon.svg"
+
+# The name of an image file (within the static path) to use as favicon of the
+# docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
+# pixels large.
+html_favicon = "../figures/frr-logo-icon.png"
+
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+html_static_path = ["_static"]
+
+# Add any extra paths that contain custom files (such as robots.txt or
+# .htaccess) here, relative to this directory. These files are copied
+# directly to the root of the documentation.
+# html_extra_path = []
+
+# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
+# using the given strftime format.
+# html_last_updated_fmt = '%b %d, %Y'
+
+# If true, SmartyPants will be used to convert quotes and dashes to
+# typographically correct entities.
+# html_use_smartypants = True
+
+# Custom sidebar templates, maps document names to template names.
+# html_sidebars = {}
+
+# Additional templates that should be rendered to pages, maps page names to
+# template names.
+# html_additional_pages = {}
+
+# If false, no module index is generated.
+# html_domain_indices = True
+
+# If false, no index is generated.
+# html_use_index = True
+
+# If true, the index is split into individual pages for each letter.
+# html_split_index = False
+
+# If true, links to the reST sources are added to the pages.
+# html_show_sourcelink = True
+
+# If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
+# html_show_sphinx = True
+
+# If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
+# html_show_copyright = True
+
+# If true, an OpenSearch description file will be output, and all pages will
+# contain a <link> tag referring to it.  The value of this option must be the
+# base URL from which the finished HTML is served.
+# html_use_opensearch = ''
+
+# This is the file name suffix for HTML files (e.g. ".xhtml").
+# html_file_suffix = None
+
+# Language to be used for generating the HTML full-text search index.
+# Sphinx supports the following languages:
+#   'da', 'de', 'en', 'es', 'fi', 'fr', 'hu', 'it', 'ja'
+#   'nl', 'no', 'pt', 'ro', 'ru', 'sv', 'tr'
+# html_search_language = 'en'
+
+# A dictionary with options for the search language support, empty by default.
+# Now only 'ja' uses this config value
+# html_search_options = {'type': 'default'}
+
+# The name of a javascript file (relative to the configuration directory) that
+# implements a search results scorer. If empty, the default will be used.
+# html_search_scorer = 'scorer.js'
+
+# Output file base name for HTML help builder.
+htmlhelp_basename = "FRRdoc"
+
+# -- Options for LaTeX output ---------------------------------------------
+
+latex_elements = {
+    # The paper size ('letterpaper' or 'a4paper').
+    #'papersize': 'letterpaper',
+    # The font size ('10pt', '11pt' or '12pt').
+    #'pointsize': '10pt',
+    # Additional stuff for the LaTeX preamble.
+    #'preamble': '',
+    # Latex figure (float) alignment
+    #'figure_align': 'htbp',
+}
+
+# Grouping the document tree into LaTeX files. List of tuples
+# (source start file, target name, title,
+#  author, documentclass [howto, manual, or own class]).
+latex_documents = [
+    (master_doc, "FRR.tex", u"FRR User Manual", u"FRR", "manual"),
+]
+
+# The name of an image file (relative to this directory) to place at the top of
+# the title page.
+latex_logo = "../figures/frr-logo-medium.png"
+
+# For "manual" documents, if this is true, then toplevel headings are parts,
+# not chapters.
+# latex_use_parts = False
+
+# If true, show page references after internal links.
+# latex_show_pagerefs = False
+
+# If true, show URL addresses after external links.
+# latex_show_urls = False
+
+# Documents to append as an appendix to all manuals.
+# latex_appendices = []
+
+# If false, no module index is generated.
+# latex_domain_indices = True
+
+
+# -- Options for manual page output ---------------------------------------
+
+# One entry per manual page. List of tuples
+# (source start file, name, description, authors, manual section).
+man_pages = [(master_doc, "frr", u"FRR User Manual", [author], 1)]
+
+# If true, show URL addresses after external links.
+# man_show_urls = False
+
+
+# -- Options for Texinfo output -------------------------------------------
+
+# Grouping the document tree into Texinfo files. List of tuples
+# (source start file, target name, title, author,
+#  dir menu entry, description, category)
+texinfo_documents = [
+    (
+        master_doc,
+        "frr",
+        u"FRR User Manual",
+        author,
+        "FRR",
+        "One line description of project.",
+        "Miscellaneous",
+    ),
+]
+
+# Documents to append as an appendix to all manuals.
+# texinfo_appendices = []
+
+# If false, no module index is generated.
+# texinfo_domain_indices = True
+
+# How to display URL addresses: 'footnote', 'no', or 'inline'.
+# texinfo_show_urls = 'footnote'
+
+# If true, do not generate a @detailmenu in the "Top" node's menu.
+# texinfo_no_detailmenu = False
+
+# contents of ../extra/frrlexer.py.
+# This is read here to support VPATH build. Since this section is execfile()'d
+# with the file location, we can safely use a relative path here to save the
+# contents of the lexer file for later use even if our relative path changes
+# due to VPATH.
+with open("../extra/frrlexer.py", "rb") as lex:
+    frrlexerpy = lex.read()
+
+# Parse version string into int array
+def vparse(s):
+    a = []
+
+    for c in s:
+        if c != ".":
+            a.append(int(c))
+
+    while len(a) < 3:
+        a.append(0)
+
+    return a[:3]
+
+
+# custom extensions here
+def setup(app):
+    # object type for FRR CLI commands, can be extended to document parent CLI
+    # node later on
+    app.add_object_type("clicmd", "clicmd", indextemplate="pair: %s; configuration command")
+
+    # I dont care how stupid this is
+    if "add_js_file" in dir(app):
+        app.add_js_file("overrides.js")
+    else:
+        app.add_javascript("overrides.js")
+
+    if "add_css_file" in dir(app):
+        app.add_css_file("overrides.css")
+    else:
+        app.add_stylesheet("overrides.css")
+
+
+    # load Pygments lexer for FRR config syntax
+    #
+    # NB: in Pygments 2.2+ this can be done with `load_lexer_from_file`, but we
+    # do it manually since not all of our supported build platforms have 2.2
+    # yet.
+    #
+    # frrlexer = pygments.lexers.load_lexer_from_file('../extra/frrlexer.py', lexername="FRRLexer")
+    custom_namespace = {}
+    exec(frrlexerpy, custom_namespace)
+    lexers["frr"] = custom_namespace["FRRLexer"]()