Fix #4085 Failed PDF build from image in parsed-literal

CHANGES

@@ -16,6 +16,8 @@ Features added
 Bugs fixed
 ----------
 
+* #4085: Failed PDF build from image in parsed-literal using ``:align:`` option
+
 Testing
 --------
 

sphinx/writers/latex.py

@@ -1702,9 +1702,6 @@ class LaTeXTranslator(nodes.NodeVisitor):
         pre = []    # type: List[unicode]
                     # in reverse order
         post = []   # type: List[unicode]
-        if self.in_parsed_literal:
-            pre = ['\\begingroup\\sphinxunactivateextrasandspace\\relax ']
-            post = ['\\endgroup ']
         include_graphics_options = []
         is_inline = self.is_inline(node)
         if 'width' in attrs:
@@ -1744,6 +1741,9 @@ class LaTeXTranslator(nodes.NodeVisitor):
                 post.append(align_prepost[is_inline, attrs['align']][1])
             except KeyError:
                 pass
+        if self.in_parsed_literal:
+            pre.append('\\begingroup\\sphinxunactivateextrasandspace\\relax ')
+            post.append('\\endgroup ')
         if not is_inline:
             pre.append('\n\\noindent')
             post.append('\n')

tests/roots/test-image-in-parsed-literal/conf.py

@@ -0,0 +1,13 @@
+# -*- coding: utf-8 -*-
+
+master_doc = 'index'
+exclude_patterns = ['_build']
+
+rst_epilog = '''
+.. |picture| image:: pic.png
+    :width: 15pt
+    :scale: 200%
+    :align: middle
+    :alt: alternative_text
+'''
+

tests/roots/test-image-in-parsed-literal/index.rst

@@ -0,0 +1,9 @@
+test-image-in-parsed-literal
+============================
+
+Dummy text
+
+.. parsed-literal::
+
+   |picture|
+

tests/test_build_latex.py

@@ -1029,3 +1029,13 @@ def test_latex_index(app, status, warning):
     result = (app.outdir / 'Python.tex').text(encoding='utf8')
     assert 'A \\index{famous}famous \\index{equation}equation:\n' in result
     assert '\n\\index{Einstein}\\index{relativity}\\ignorespaces \nand' in result
+
+
+@pytest.mark.sphinx('latex', testroot='image-in-parsed-literal')
+def test_latex_image_in_parsed_literal(app, status, warning):
+    app.builder.build_all()
+
+    result = (app.outdir / 'Python.tex').text(encoding='utf8')
+    assert (r'\begingroup\sphinxunactivateextrasandspace\relax \raisebox{-0.5\height}'
+            r'{\scalebox{2.000000}{\sphinxincludegraphics[width=15bp]{{pic}.png}}}'
+            r'\endgroup ') in result