From 2a83926c22bde49a4574c83d962f34150a511ce6 Mon Sep 17 00:00:00 2001
From: Lars Wirzenius <liw@liw.fi>
Date: Sat, 25 May 2019 21:42:47 +0300
Subject: Add: support for more Markdown features, Pandoc YAML metadata

---
 ftt-docgen | 45 +++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 41 insertions(+), 4 deletions(-)

diff --git a/ftt-docgen b/ftt-docgen
index 6dd7ee9..1a9e31e 100755
--- a/ftt-docgen
+++ b/ftt-docgen
@@ -80,16 +80,45 @@ def write_fencedcode(bind, f, o):
     else:
         write_not_fable_snippet(bind, f, o)
 
+def write_indentedcode(bind, f, o):
+    for s in o.strings:
+        f.write('    {}\n'.format(s))
+    f.write('\n')
+
 def write_horizontalrule(bind, f, o):
     f.write('---\n')
 
+def write_list(bind, f, o):
+    pass
+
+def write_listitem(bind, f, o):
+    bullet = o.list_data['bullet_char']
+    offset = o.list_data['marker_offset']
+    padding = o.list_data['padding']
+    prefix = '{}{} '.format(' ' * offset, bullet)
+    cont = ' ' * padding
+    for c in o.children:
+        prepend = prefix
+        for s in c.strings:
+            f.write('{}{}\n'.format(prepend, s))
+            prepend = cont
+    return True
+
+def write_referencedef(bind, f, o):
+    for s in o.strings:
+        f.write('{}\n'.format(s))
+
 writers = {
     'Document': write_document,
     'ATXHeader': write_atxheader,
     'SetextHeader': write_setextheader,
     'Paragraph': write_paragraph,
     'FencedCode': write_fencedcode,
+    'IndentedCode': write_indentedcode,
     'HorizontalRule': write_horizontalrule,
+    'List': write_list,
+    'ListItem': write_listitem,
+    'ReferenceDef': write_referencedef,
 }
 
 def write(bind, f, o):
@@ -97,12 +126,13 @@ def write(bind, f, o):
         debug('{} not known'.format(repr(o.t)))
         return
     writer = writers[o.t]
-    writer(bind, f, o)
+    return writer(bind, f, o)
 
 def walk(o, func):
-    func(o)
-    for c in o.children:
-        walk(c, func)
+    done = func(o)
+    if not done:
+        for c in o.children:
+            walk(c, func)
 
 def debug(msg):
     sys.stderr.write('DEBUG: {}\n'.format(msg))
@@ -114,11 +144,18 @@ bindings = yaml.safe_load(open(sys.argv[1]))
 debug('reading inputs')
 text = ''.join(open(filename).read() for filename in sys.argv[2:])
 
+if text.startswith('---\n'):
+    meta, text = text.split('\n...\n', 1)
+    meta += '\n...\n'
+else:
+    meta = ''
+
 debug('parse')
 parser = CommonMark.DocParser()
 ast = parser.parse(text)
 
 debug('output')
+sys.stdout.write(meta)
 walk(ast, lambda o: write(bindings, sys.stdout, o))
 
 debug('ok')
-- 
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