latex: escape \releasename and \indexname

sphinx/templates/latex/latex.tex_t

@@ -48,7 +48,7 @@
 \author{<%= author %>}
 \newcommand{\sphinxlogo}{<%= logo %>}
 <%- if releasename or release %>
-\renewcommand{\releasename}{<%= releasename or _('Release') %>}
+\renewcommand{\releasename}{<%= releasename or _('Release') | e %>}
 <%- else %>
 \renewcommand{\releasename}{}
 <%- endif %>
@@ -63,6 +63,6 @@
 <%= body %>
 <%= atendofbody %>
 <%= indices %>
-\renewcommand{\indexname}{<%= _('Index') %>}
+\renewcommand{\indexname}{<%= _('Index') | e %>}
 <%= printindex %>
 \end{document}

sphinx/util/template.py

@@ -16,6 +16,7 @@ from jinja2.sandbox import SandboxedEnvironment
 from sphinx import package_dir
 from sphinx.jinja2glue import SphinxFileSystemLoader
 from sphinx.locale import get_translator
+from sphinx.util import texescape
 
 if False:
     # For type annotation
@@ -72,6 +73,10 @@ class LaTeXRenderer(SphinxRenderer):
         template_path = os.path.join(package_dir, 'templates', 'latex')
         super(LaTeXRenderer, self).__init__(template_path)
 
+        # use texescape as escape filter
+        self.env.filters['e'] = texescape.escape
+        self.env.filters['escape'] = texescape.escape
+
         # use JSP/eRuby like tagging instead because curly bracket; the default
         # tagging of jinja2 is not good for LaTeX sources.
         self.env.variable_start_string = '<%='

sphinx/util/texescape.py

@@ -11,6 +11,10 @@
 
 from __future__ import unicode_literals
 
+if False:
+    # For type annotation
+    from typing import Dict  # NOQA
+
 tex_replacements = [
     # map TeX special chars
     ('$', r'\$'),
@@ -117,11 +121,16 @@ tex_replacements = [
     ('Ω', r'\(\Omega\)'),
 ]
 
-tex_escape_map = {}
+tex_escape_map = {}  # type: Dict[int, unicode]
 tex_replace_map = {}
 tex_hl_escape_map_new = {}
 
 
+def escape(s):
+    # type: (unicode) -> unicode
+    return s.translate(tex_escape_map)
+
+
 def init():
     # type: () -> None
     for a, b in tex_replacements: