From 6b56aff9ff5fd0cea57db91f6ac0f1d113e07d3d Mon Sep 17 00:00:00 2001
From: Stefan Sauer <ensonic@users.sf.net>
Date: Sun, 25 Mar 2018 21:08:35 +0200
Subject: [PATCH] mkhtml2: add chunk parameters for <preface> chunks

Those were determined by dropping the 'id' and cehcking what docbook did.
---
 gtkdoc/mkhtml2.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gtkdoc/mkhtml2.py b/gtkdoc/mkhtml2.py
index 309cfff..b4d20d6 100644
--- a/gtkdoc/mkhtml2.py
+++ b/gtkdoc/mkhtml2.py
@@ -109,12 +109,16 @@ class ChunkParams(object):
 # TODO: look up the abbrevs and hierarchy for other tags
 # http://www.sagehill.net/docbookxsl/Chunking.html#GeneratedFilenames
 # https://github.com/oreillymedia/HTMLBook/blob/master/htmlbook-xsl/chunk.xsl#L33
+#
+# If not defined, we can just create an example without an 'id' attr and see
+# docbook xsl does.
 CHUNK_PARAMS = {
     'appendix': ChunkParams('app', 'book'),
     'book': ChunkParams('bk'),
     'chapter': ChunkParams('ch', 'book'),
     'index': ChunkParams('ix', 'book'),
     'part': ChunkParams('pt', 'book'),
+    'preface': ChunkParams('pr', 'book'),
     'sect1': ChunkParams('s', 'chapter'),
     'section': ChunkParams('s', 'chapter'),
 }
-- 
2.11.4.GIT