feat: sanitize all yaml

lumbunglib/feed.py

@@ -5,7 +5,6 @@ from hashlib import md5
 from ast import literal_eval as make_tuple
 from pathlib import Path
 from urllib.parse import urlparse
-from re import sub
 
 import arrow
 import feedparser
@@ -14,7 +13,8 @@ import requests
 from bs4 import BeautifulSoup
 from slugify import slugify
 from re import compile as re_compile
-yamlre = re_compile('"')
+from re import sub
+yamlre = re_compile('[_\?:\'\[\]\{\}\#\&\*\!\|\>\`\"\%]')
 
 
 def write_etag(feed_name, feed_data):
@@ -121,12 +121,12 @@ def sanitize_yaml (frontmatter):
             #some fields are lists
             l = []
             for i in v:
-                i = yamlre.sub('\\"', i)
+                i = yamlre.sub(r'\\\g<0>', i)
                 l.append(i)
             frontmatter[k] = l
 
         else:
-            v = yamlre.sub('\\"', v)
+            v = yamlre.sub(r'\\\g<0>', v)
             frontmatter[k] = v
 
     return frontmatter