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[Dirty hack] to parse pandoc-style metadata correctly #15

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[Dirty hack] to parse pandoc-style metadata correctly #15

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056b2f3
Dirty hack to parse pandoc-style metadata correctly
ekaitz-zarraga Sep 7, 2020
1899904
Curly brackets because they are used by pelican
ekaitz-zarraga Sep 27, 2020
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2 changes: 1 addition & 1 deletion README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@ Requirements
------------

- [pandoc] in $PATH

- PyYaml for metadata loading

Installation
------------
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38 changes: 28 additions & 10 deletions pandoc_reader.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,24 +2,38 @@
from pelican import signals
from pelican.readers import BaseReader
from pelican.utils import pelican_open
from yaml import load
try:
from yaml import CLoader as Loader
except ImportError:
from yaml import Loader

from datetime import datetime

class PandocReader(BaseReader):
enabled = True
file_extensions = ['md', 'markdown', 'mkd', 'mdown']

def read(self, filename):
with pelican_open(filename) as fp:
text = list(fp.splitlines())
text = tuple(fp.splitlines())

metadata = {}
for i, line in enumerate(text):
kv = line.split(':', 1)
if len(kv) == 2:
name, value = kv[0].lower(), kv[1].strip()
metadata[name] = self.process_metadata(name, value)
else:
content = "\n".join(text[i:])
break
init = text.index("...")
end = text[init:].index("---") + init

metatext = "\n".join(text[init+1:end])
metadata = load(metatext, Loader=Loader)

if "Date" in metadata:
# Back to string because PyYaml is way too clever
metadata["Date"] = metadata["Date"].isoformat()

finalmeta = {}
for k,v in metadata.items():
finalmeta[k.lower()] = self.process_metadata(k.lower(),v)

content = "\n".join(text[:init] + text[end+1:])

extra_args = self.settings.get('PANDOC_ARGS', [])
extensions = self.settings.get('PANDOC_EXTENSIONS', '')
Expand All @@ -38,7 +52,11 @@ def read(self, filename):
if status:
raise subprocess.CalledProcessError(status, pandoc_cmd)

return output, metadata
# Need that to make {static} -like tags be available
output = output.replace("%7B", "{")
output = output.replace("%7D", "}")

return output, finalmeta

def add_reader(readers):
for ext in PandocReader.file_extensions:
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