%PDF-
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Mini Shell
Mini Shell
#!/usr/bin/env python3
__license__ = 'GPL v3'
__copyright__ = '2015, Kovid Goyal <kovid at kovidgoyal.net>'
import posixpath, re
from uuid import uuid4
from calibre.ebooks.oeb.base import urlquote
from calibre.utils.filenames import ascii_text
from polyglot.urllib import urlparse
def start_text(tag, prefix_len=0, top_level=True):
ans = tag.text or ''
limit = 50 - prefix_len
if len(ans) < limit:
for child in tag.iterchildren('*'):
ans += start_text(child, len(ans), top_level=False) + (child.tail or '')
if len(ans) >= limit:
break
if top_level and len(ans) > limit:
ans = ans[:limit] + '...'
return ans
class TOCItem:
def __init__(self, title, bmark, level):
self.title, self.bmark, self.level = title, bmark, level
self.is_first = self.is_last = False
def serialize(self, body, makeelement):
p = makeelement(body, 'w:p', append=False)
ppr = makeelement(p, 'w:pPr')
makeelement(ppr, 'w:pStyle', w_val="Normal")
makeelement(ppr, 'w:ind', w_left='0', w_firstLineChars='0', w_firstLine='0', w_leftChars=str(200 * self.level))
if self.is_first:
makeelement(ppr, 'w:pageBreakBefore', w_val='off')
r = makeelement(p, 'w:r')
makeelement(r, 'w:fldChar', w_fldCharType='begin')
r = makeelement(p, 'w:r')
makeelement(r, 'w:instrText').text = r' TOC \h '
r[0].set('{http://www.w3.org/XML/1998/namespace}space', 'preserve')
r = makeelement(p, 'w:r')
makeelement(r, 'w:fldChar', w_fldCharType='separate')
hl = makeelement(p, 'w:hyperlink', w_anchor=self.bmark)
r = makeelement(hl, 'w:r')
rpr = makeelement(r, 'w:rPr')
makeelement(rpr, 'w:color', w_val='0000FF', w_themeColor='hyperlink')
makeelement(rpr, 'w:u', w_val='single')
makeelement(r, 'w:t').text = self.title
if self.is_last:
r = makeelement(p, 'w:r')
makeelement(r, 'w:fldChar', w_fldCharType='end')
body.insert(0, p)
def sanitize_bookmark_name(base):
# Max length allowed by Word appears to be 40, we use 32 to leave some
# space for making the name unique
return re.sub(r'[^0-9a-zA-Z]', '_', ascii_text(base))[:32].rstrip('_')
class LinksManager:
def __init__(self, namespace, document_relationships, log):
self.namespace = namespace
self.log = log
self.document_relationships = document_relationships
self.top_anchor = str(uuid4().hex)
self.anchor_map = {}
self.used_bookmark_names = set()
self.bmark_id = 0
self.document_hrefs = set()
self.external_links = {}
self.toc = []
def bookmark_for_anchor(self, anchor, current_item, html_tag):
key = (current_item.href, anchor)
if key in self.anchor_map:
return self.anchor_map[key]
if anchor == self.top_anchor:
name = ('Top of %s' % posixpath.basename(current_item.href))
self.document_hrefs.add(current_item.href)
else:
name = start_text(html_tag).strip() or anchor
name = sanitize_bookmark_name(name)
i, bname = 0, name
while name in self.used_bookmark_names:
i += 1
name = bname + ('_%d' % i)
self.anchor_map[key] = name
self.used_bookmark_names.add(name)
return name
@property
def bookmark_id(self):
self.bmark_id += 1
return self.bmark_id
def serialize_hyperlink(self, parent, link):
item, url, tooltip = link
purl = urlparse(url)
href = purl.path
def make_link(parent, anchor=None, id=None, tooltip=None):
kw = {}
if anchor is not None:
kw['w_anchor'] = anchor
elif id is not None:
kw['r_id'] = id
if tooltip:
kw['w_tooltip'] = tooltip
return self.namespace.makeelement(parent, 'w:hyperlink', **kw)
if not purl.scheme:
href = item.abshref(href)
if href not in self.document_hrefs:
href = urlquote(href)
if href in self.document_hrefs:
key = (href, purl.fragment or self.top_anchor)
if key in self.anchor_map:
bmark = self.anchor_map[key]
else:
bmark = self.anchor_map[(href, self.top_anchor)]
return make_link(parent, anchor=bmark, tooltip=tooltip)
else:
self.log.warn('Ignoring internal hyperlink with href (%s) pointing to unknown destination' % url)
if purl.scheme in {'http', 'https', 'ftp'}:
if url not in self.external_links:
self.external_links[url] = self.document_relationships.add_relationship(url, self.namespace.names['LINKS'], target_mode='External')
return make_link(parent, id=self.external_links[url], tooltip=tooltip)
return parent
def process_toc_node(self, toc, level=0):
href = toc.href
if href:
purl = urlparse(href)
href = purl.path
if href in self.document_hrefs:
key = (href, purl.fragment or self.top_anchor)
if key in self.anchor_map:
bmark = self.anchor_map[key]
else:
bmark = self.anchor_map[(href, self.top_anchor)]
self.toc.append(TOCItem(toc.title, bmark, level))
for child in toc:
self.process_toc_node(child, level+1)
def process_toc_links(self, oeb):
self.toc = []
has_toc = oeb.toc and oeb.toc.count() > 1
if not has_toc:
return
for child in oeb.toc:
self.process_toc_node(child)
if self.toc:
self.toc[0].is_first = True
self.toc[-1].is_last = True
def serialize_toc(self, body, primary_heading_style):
pbb = body[0].xpath('//*[local-name()="pageBreakBefore"]')[0]
pbb.set('{%s}val' % self.namespace.namespaces['w'], 'on')
for block in reversed(self.toc):
block.serialize(body, self.namespace.makeelement)
title = __('Table of Contents')
makeelement = self.namespace.makeelement
p = makeelement(body, 'w:p', append=False)
ppr = makeelement(p, 'w:pPr')
if primary_heading_style is not None:
makeelement(ppr, 'w:pStyle', w_val=primary_heading_style.id)
makeelement(ppr, 'w:pageBreakBefore', w_val='off')
makeelement(makeelement(p, 'w:r'), 'w:t').text = title
body.insert(0, p)
Zerion Mini Shell 1.0