# This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
#
+"""PDF creation library.
+
+Creates one big XML from the book and its children, converts it to LaTeX
+with TeXML, then runs it by XeLaTeX.
+
+"""
from __future__ import with_statement
import os
import os.path
import shutil
from StringIO import StringIO
-from tempfile import mkdtemp
+from tempfile import mkdtemp, NamedTemporaryFile
import re
from copy import deepcopy
from subprocess import call, PIPE
-import sys
-
from Texml.processor import process
from lxml import etree
-from lxml.etree import XMLSyntaxError, XSLTApplyError
from librarian.dcparser import Person
from librarian.parser import WLDocument
-from librarian import ParseError, DCNS, get_resource
+from librarian import ParseError, DCNS, get_resource, IOFile, Format
from librarian import functions
def insert_tags(doc, split_re, tagname, exclude=None):
""" inserts <tagname> for every occurence of `split_re' in text nodes in the `doc' tree
- >>> t = etree.fromstring('<a><b>A-B-C</b>X-Y-Z</a>');
- >>> insert_tags(t, re.compile('-'), 'd');
+ >>> t = etree.fromstring('<a><b>A-B-C</b>X-Y-Z</a>')
+ >>> insert_tags(t, re.compile('-'), 'd')
>>> print etree.tostring(t)
<a><b>A<d/>B<d/>C</b>X<d/>Y<d/>Z</a>
"""
insert_tags(doc,
re.compile("(?<=[^-\s])-(?=[^-\s])"),
"dywiz",
- exclude=[DCNS("identifier.url"), DCNS("rights.license")]
+ exclude=[DCNS("identifier.url"), DCNS("rights.license"), 'www']
)
insert_tags(doc,
re.compile("(?<=\s\w)\s+"),
"nbsp",
- exclude=[DCNS("identifier.url"), DCNS("rights.license")]
+ exclude=[DCNS("identifier.url"), DCNS("rights.license"), DCNS("title"), DCNS("description")]
)
def move_motifs_inside(doc):
""" moves motifs to be into block elements """
- for master in doc.xpath('//powiesc|//opowiadanie|//liryka_l|//liryka_lp|//dramat_wierszowany_l|//dramat_wierszowany_lp|//dramat_wspolczesny'):
+ main_tags = ('powiesc', 'opowiadanie', 'liryka_l', 'liryka_lp',
+ 'dramat_wierszowany_l', 'dramat_wierszowany_lp', 'dramat_wspolczesny')
+ for master in doc.xpath('|'.join('//' + tag for tag in main_tags)):
for motif in master.xpath('motyw'):
for sib in motif.itersiblings():
- if sib.tag not in ('sekcja_swiatlo', 'sekcja_asterysk', 'separator_linia', 'begin', 'end', 'motyw', 'extra', 'uwaga'):
+ special_tags = ('sekcja_swiatlo', 'sekcja_asterysk', 'separator_linia',
+ 'begin', 'end', 'motyw', 'extra', 'uwaga')
+ if sib.tag not in special_tags:
# motif shouldn't have a tail - it would be untagged text
motif.tail = None
motif.getparent().remove(motif)
def parse_creator(doc):
- """ find all dc:creator and dc.contributor tags and add *_parsed versions with forenames first """
- for person in doc.xpath("|".join('//dc:'+(tag) for tag in (
- 'creator', 'contributor.translator', 'contributor.editor', 'contributor.technical_editor')),
- namespaces = {'dc': str(DCNS)})[::-1]:
+ """Generates readable versions of creator and translator tags.
+
+ Finds all dc:creator and dc.contributor.translator tags
+ and adds *_parsed versions with forenames first.
+ """
+ persons = doc.xpath(
+ "|".join('//dc:' + tag for tag in ('creator', 'contributor.translator')),
+ namespaces={'dc': str(DCNS)})[::-1]
+ for person in persons:
if not person.text:
continue
p = Person.from_text(person.text)
fpath = os.path.join(tempdir, 'test.tex')
f = open(fpath, 'w')
f.write(r"""
- \documentclass{book}
+ \documentclass{wl}
\usepackage[%s]{%s}
\begin{document}
\end{document}
return p == 0
-def transform(provider, slug=None, file_path=None,
- output_file=None, output_dir=None, make_dir=False, verbose=False, save_tex=None, morefloats=None):
- """ produces a PDF file with XeLaTeX
+# not used
+def load_including_children(wldoc=None, provider=None, uri=None):
+ """ Makes one big xml file with children inserted at end.
- provider: a DocProvider
- slug: slug of file to process, available by provider
- file_path can be provided instead of a slug
- output_file: file-like object or path to output file
- output_dir: path to directory to save output file to; either this or output_file must be present
- make_dir: writes output to <output_dir>/<author>/<slug>.pdf istead of <output_dir>/<slug>.pdf
- verbose: prints all output from LaTeX
- save_tex: path to save the intermediary LaTeX file to
- morefloats (old/new/none): force specific morefloats
+ Either wldoc or provider and URI must be provided.
"""
- # Parse XSLT
- try:
- if file_path:
- if slug:
- raise ValueError('slug or file_path should be specified, not both')
- document = load_including_children(provider, file_path=file_path)
- else:
- if not slug:
- raise ValueError('either slug or file_path should be specified')
- document = load_including_children(provider, slug=slug)
-
- # check for LaTeX packages
- if morefloats:
- document.edoc.getroot().set('morefloats', morefloats.lower())
- elif package_available('morefloats', 'maxfloats=19'):
- document.edoc.getroot().set('morefloats', 'new')
-
- # hack the tree
- move_motifs_inside(document.edoc)
- hack_motifs(document.edoc)
- parse_creator(document.edoc)
- substitute_hyphens(document.edoc)
- fix_hanging(document.edoc)
-
- # find output dir
- if make_dir and output_dir is not None:
- author = unicode(document.book_info.author)
- output_dir = os.path.join(output_dir, author)
-
- # wl -> TeXML
- style_filename = get_stylesheet("wl2tex")
- style = etree.parse(style_filename)
- texml = document.transform(style)
- del document # no longer needed large object :)
-
- # TeXML -> LaTeX
- temp = mkdtemp('-wl2pdf')
- tex_path = os.path.join(temp, 'doc.tex')
- fout = open(tex_path, 'w')
- process(StringIO(texml), fout, 'utf-8')
- fout.close()
- del texml
+ if uri and provider:
+ f = provider.by_uri(uri)
+ # WTF DocProvider.by_uri() returns IOFile, so no .read() there
+ text = f.read().decode('utf-8')
+ f.close()
+ elif wldoc is not None:
+ text = etree.tostring(wldoc.edoc, encoding=unicode)
+ provider = wldoc.provider
+ else:
+ raise ValueError('Neither a WLDocument, nor provider and URI were provided.')
- if save_tex:
- shutil.copy(tex_path, save_tex)
+ text = re.sub(ur"([\u0400-\u04ff]+)", ur"<alien>\1</alien>", text)
+
+ document = WLDocument.from_string(text, parse_dublincore=True, provider=provider)
+ document.swap_endlines()
+
+ for child_uri in document.book_info.parts:
+ child = load_including_children(provider=provider, uri=child_uri)
+ document.edoc.getroot().append(child.edoc.getroot())
+ return document
+
+
+class PDFFormat(Format):
+ """ Base PDF format.
- # LaTeX -> PDF
- shutil.copy(get_resource('pdf/wl.sty'), temp)
- shutil.copy(get_resource('res/wl-logo.png'), temp)
+ Available customization:
+ nofootnotes: Doesn't do footnotes.
+ nothemes: Doesn't do themes.
+ defaultleading: Default leading.
+ onehalfleading: Bigger leading.
+ doubleleading: Big leading.
+ nowlfont: Uses standard TeX font instead of JUnicodeWL.
+
+ """
- cwd = os.getcwd()
+ cover_class = None
+ tex_passes = 1
+ style = get_resource('pdf/default.sty')
+ cover = None
+
+ @property
+ def has_cover(self):
+ """ For use in XSLT. """
+ return self.cover is not None
+
+ @property
+ def customization_str(self):
+ """ For use in XSLT. """
+ return u','.join(k for k, v in self.customization.items() if v)
+
+ def get_texml(self):
+ raise NotImplementedError
+
+ def get_tex_dir(self):
+ texml = self.get_texml()
+ temp = mkdtemp('-wl2pdf')
+ # Save TeX file
+ tex_path = os.path.join(temp, 'doc.tex')
+ with open(tex_path, 'w') as fout:
+ process(StringIO(texml), fout, 'utf-8')
+ if self.save_tex:
+ shutil.copy(tex_path, self.save_tex)
+ # Copy style
+ shutil.copy(get_resource('pdf/wl.cls'), temp)
+ shutil.copy(self.style, os.path.join(temp, 'style.sty'))
+ # for sfile in ['wasysym.sty', 'uwasyvar.fd', 'uwasy.fd']:
+ # shutil.copy(get_resource(os.path.join('res/wasysym', sfile)), temp)
+
+ # Save attachments
+ if self.cover:
+ self.cover.for_pdf().dump_to(os.path.join(temp, 'makecover.sty'))
+ return temp
+
+ def get_pdf(self):
+ temp = self.get_tex_dir()
+ tex_path = os.path.join(temp, 'doc.tex')
+ try:
+ cwd = os.getcwd()
+ except OSError:
+ cwd = None
os.chdir(temp)
- if verbose:
- p = call(['xelatex', tex_path])
+ p = None
+ if self.verbose:
+ for i in xrange(self.tex_passes):
+ p = call(['xelatex', tex_path])
else:
- p = call(['xelatex', '-interaction=batchmode', tex_path], stdout=PIPE, stderr=PIPE)
+ for i in xrange(self.tex_passes):
+ p = call(['xelatex', '-interaction=batchmode', tex_path], stdout=PIPE, stderr=PIPE)
if p:
- raise ParseError("Error parsing .tex file")
+ raise ParseError("Error parsing .tex file: %s" % tex_path)
- os.chdir(cwd)
+ if cwd is not None:
+ os.chdir(cwd)
- # save the PDF
+ output_file = NamedTemporaryFile(prefix='librarian', suffix='.pdf', delete=False)
pdf_path = os.path.join(temp, 'doc.pdf')
- if output_dir is not None:
- try:
- os.makedirs(output_dir)
- except OSError:
- pass
- if slug:
- output_path = os.path.join(output_dir, '%s.pdf' % slug)
- else:
- output_path = os.path.join(output_dir, os.path.splitext(os.path.basename(file_path))[0] + '.pdf')
- shutil.move(pdf_path, output_path)
- else:
- if hasattr(output_file, 'write'):
- # file-like object
- with open(pdf_path) as f:
- output_file.write(f.read())
- output_file.close()
- else:
- # path to output file
- shutil.copy(pdf_path, output_file)
+ shutil.move(pdf_path, output_file.name)
shutil.rmtree(temp)
+ return IOFile.from_filename(output_file.name)
- except (XMLSyntaxError, XSLTApplyError), e:
- raise ParseError(e)
+ def build(self, verbose=False, save_tex=None, morefloats=None):
+ """ morefloats: new/old/none
+ """
+ self.verbose = verbose
+ self.save_tex = save_tex
+ if morefloats is None and package_available('morefloats', 'maxfloats=19'):
+ morefloats = 'new'
+ self.morefloats = morefloats
-def load_including_children(provider, slug=None, uri=None, file_path=None):
- """ makes one big xml file with children inserted at end
- either slug or uri must be provided
- """
+ book_info = self.wldoc.book_info
+ if self.cover_class:
+ self.cover = self.cover_class(book_info)
- if uri:
- f = provider.by_uri(uri)
- elif slug:
- f = provider[slug]
- elif file_path:
- f = open(file_path, 'r')
- else:
- raise ValueError('Neither slug, URI nor file path provided for a book.')
-
- text = f.read().decode('utf-8')
- text = re.sub(ur"([\u0400-\u04ff]+)", ur"<alien>\1</alien>", text)
-
- document = WLDocument.from_string(text, True,
- parse_dublincore=True)
-
- f.close()
- for child_uri in document.book_info.parts:
- print child_uri
- child = load_including_children(provider, uri=child_uri)
- document.edoc.getroot().append(child.edoc.getroot())
- return document
+ return self.get_pdf()
fnp / librarian.git / blobdiff