From 90c0a5212afc35b5430d7014621d444c97c474cd Mon Sep 17 00:00:00 2001
From: =?utf8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Fri, 22 Feb 2019 19:30:09 +0100
Subject: [PATCH] m.dot: support plaintext node shapes as well.

---
 pelican-plugins/dot2svg.py               |  7 +++++--
 pelican-plugins/m/test/dot/page-238.html | 11 +++++++++++
 pelican-plugins/m/test/dot/page.html     | 11 +++++++++++
 pelican-plugins/m/test/dot/page.rst      |  4 ++++
 4 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/pelican-plugins/dot2svg.py b/pelican-plugins/dot2svg.py
index 6c68ce41..d7984d55 100644
--- a/pelican-plugins/dot2svg.py
+++ b/pelican-plugins/dot2svg.py
@@ -42,7 +42,7 @@ _comment_src = re.compile(r"""<!--[^-]+-->\n""")
 # Graphviz < 2.40 (Ubuntu 16.04 and older) doesn't have a linebreak between <g>
 # and <title>
 _class_src = re.compile(r"""<g id="(edge|node)\d+" class="(?P<type>edge|node)(?P<classes>[^"]*)">[\n]?<title>(?P<title>[^<]*)</title>
-<(?P<element>ellipse|polygon|path) fill="(?P<fill>[^"]+)" stroke="[^"]+" """)
+<(?P<element>ellipse|polygon|path|text)( fill="(?P<fill>[^"]+)" stroke="[^"]+")? """)
 
 _class_dst = r"""<g class="{classes}">
 <title>{title}</title>
@@ -99,7 +99,10 @@ def dot2svg(source, size=None, attribs=''):
     def element_repl(match):
         classes = ['m-' + match.group('type')] + match.group('classes').replace('&#45;', '-').split()
         # distinguish between solid and filled nodes
-        if match.group('type') == 'node' and match.group('fill') == 'none':
+        if ((match.group('type') == 'node' and match.group('fill') == 'none') or
+            # a plaintext node is also flat
+            match.group('element') == 'text'
+        ):
             classes += ['m-flat']
 
         return _class_dst.format(
diff --git a/pelican-plugins/m/test/dot/page-238.html b/pelican-plugins/m/test/dot/page-238.html
index e8607d6d..f3118a8f 100644
--- a/pelican-plugins/m/test/dot/page-238.html
+++ b/pelican-plugins/m/test/dot/page-238.html
@@ -67,6 +67,17 @@ and the arrowheads, nothing else. Non-default font size should be preserved.</p>
 </g>
 </svg>
 </div>
+<div class="m-graph">
+<svg style="width: 5.625rem; height: 2.750rem;" viewBox="0.00 0.00 90.00 44.00">
+<g transform="scale(1 1) rotate(0) translate(4 40)">
+<title>More shapes</title>
+<g class="m-node m-flat">
+<title>d</title>
+<text text-anchor="middle" x="41" y="-14.2">outsider</text>
+</g>
+</g>
+</svg>
+</div>
 <p>Colors:</p>
 <div class="m-graph">
 <svg style="width: 5.750rem; height: 8.500rem;" viewBox="0.00 0.00 92.38 135.54">
diff --git a/pelican-plugins/m/test/dot/page.html b/pelican-plugins/m/test/dot/page.html
index ff53a240..d23a177b 100644
--- a/pelican-plugins/m/test/dot/page.html
+++ b/pelican-plugins/m/test/dot/page.html
@@ -67,6 +67,17 @@ and the arrowheads, nothing else. Non-default font size should be preserved.</p>
 </g>
 </svg>
 </div>
+<div class="m-graph">
+<svg style="width: 5.562rem; height: 2.750rem;" viewBox="0.00 0.00 89.00 44.00">
+<g transform="scale(1 1) rotate(0) translate(4 40)">
+<title>More shapes</title>
+<g class="m-node m-flat">
+<title>d</title>
+<text text-anchor="middle" x="40.5" y="-14.2">outsider</text>
+</g>
+</g>
+</svg>
+</div>
 <p>Colors:</p>
 <div class="m-graph">
 <svg style="width: 5.688rem; height: 8.500rem;" viewBox="0.00 0.00 91.38 135.54">
diff --git a/pelican-plugins/m/test/dot/page.rst b/pelican-plugins/m/test/dot/page.rst
index c3d09d29..36b7dcc7 100644
--- a/pelican-plugins/m/test/dot/page.rst
+++ b/pelican-plugins/m/test/dot/page.rst
@@ -18,6 +18,10 @@ and the arrowheads, nothing else. Non-default font size should be preserved.
     b -> c [label="0" fontsize=40]
     c -> c [label="1"]
 
+.. digraph:: More shapes
+
+    d [shape=plaintext label="outsider"]
+
 Colors:
 
 .. digraph:: Colors
-- 
2.30.2