Cutlery/calibre
1
0
Fork 0
mirror of https://github.com/kovidgoyal/calibre.git synced 2025-07-09 03:04:10 -04:00
Code Issues Packages Projects Releases Wiki Activity

AZW3 Input: Handle AZW3 files that contain Amazon specific CSS media queries. Fixes #1406708 [Converting azw3 to epub creates artifacts](https://bugs.launchpad.net/calibre/+bug/1406708)

Browse Source
This commit is contained in:
Kovid Goyal 2015-01-01 08:57:03 +05:30
parent 79c029c15f
commit acfcc63cfc
1 changed files with 20 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
src/calibre/ebooks/mobi/reader/markup.py
View File

@ -306,6 +306,24 @@ def upshift_markup(parts):
# store away modified version # store away modified version
parts[i] = part parts[i] = part
def handle_media_queries(raw):
# cssutils cannot handle CSS 3 media queries. We look for media queries
# that use amzn-mobi or amzn-kf8 and map them to asimple @media screen
# rule. See https://bugs.launchpad.net/bugs/1406708 for an example
import tinycss
parser = tinycss.make_full_parser()
def replace(m):
sheet = parser.parse_stylesheet(m.group() + '}')
for mq in sheet.rules[0].media:
# Only accept KF8 media types
if (mq.media_type, mq.negated) in {('amzn-mobi', True), ('amzn-kf8', False)}:
break
else:
return m.group()
return '@media screen {'
return re.sub(r'@media\s[^{]*{', replace, raw)
def expand_mobi8_markup(mobi8_reader, resource_map, log): def expand_mobi8_markup(mobi8_reader, resource_map, log):
# First update all internal links that are based on offsets # First update all internal links that are based on offsets
parts = update_internal_links(mobi8_reader, log) parts = update_internal_links(mobi8_reader, log)
@ -347,6 +365,8 @@ def expand_mobi8_markup(mobi8_reader, resource_map, log):
if not os.path.exists(fi.dir): if not os.path.exists(fi.dir):
os.mkdir(fi.dir) os.mkdir(fi.dir)
with open(os.path.join(fi.dir, fi.fname), 'wb') as f: with open(os.path.join(fi.dir, fi.fname), 'wb') as f:
if fi.fname.endswith('.css') and '@media' in flow:
flow = handle_media_queries(flow)
f.write(flow.encode('utf-8')) f.write(flow.encode('utf-8'))
return spine return spine