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Fix writing metadata to RTF files with no info block

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This commit is contained in:
Kovid Goyal 2007-08-05 15:40:26 +00:00
parent 6650029e89
commit 65681cf015
1 changed files with 68 additions and 41 deletions
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29
src/libprs500/ebooks/metadata/rtf.py
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@ -69,7 +69,7 @@ def get_metadata(stream):
stream.seek(0)
if stream.read(5) != r'{\rtf':
raise Exception('Not a valid RTF file')
block, pos = get_document_info(stream)
block = get_document_info(stream)[0]
if not block:
return MetaInformation(None, None)
title, author, comment, category = None, None, None, None
@ -90,6 +90,29 @@ def get_metadata(stream):
mi.category = category
return mi
def create_metadata(stream, options):
md = r'{\info'
if options.title:
title = options.title.encode('ascii', 'replace')
md += r'{\title %s}'%(title,)
if options.authors:
author = options.authors.encode('ascii', 'replace')
md += r'{\author %s}'%(author,)
if options.category:
category = options.category.encode('ascii', 'replace')
md += r'{\category %s}'%(category,)
if options.comment:
comment = options.comment.encode('ascii', 'replace')
md += r'{\subject %s}'%(comment,)
if len(md) > 6:
md += '}'
stream.seek(0)
src = stream.read()
ans = src[:6] + md + src[6:]
stream.seek(0)
stream.write(ans)
def set_metadata(stream, options):
'''
Modify/add RTF metadata in stream
@ -99,7 +122,11 @@ def set_metadata(stream, options):
index = src.rindex('}')
return src[:index] + r'{\ '[:-1] + name + ' ' + val + '}}'
src, pos = get_document_info(stream)
if not src:
create_metadata(stream, options)
else:
olen = len(src)
base_pat = r'\{\\name(.*?)(?<!\\)\}'
title = options.title
if title != None: