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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os
import re
import pandoc
from tempfile import NamedTemporaryFile
from panfry.util import *
from panfry.page import TextFile, Page
class Document:
def __init__(self, path):
self.src_path = os.path.join(path, 'src')
self.meta = self.get_meta(self.src_path)
self.pages = self.get_pages(self.src_path)
self.full_toc = True
self.css_file = 'css/style.css'
self.assets_dir = 'assets'
@property
def set_simple_toc(self):
self.full_toc = False
@property
def set_full_toc(self):
self.full_toc = True
def set_templater(self, templater):
self.templater = templater
def expand_int_links(self, source):
'''
Converts all internal links to full url links
so that links reference accross the split up html pages
Arguments:
source = original markdown source
returns: markdown source with expanded links
'''
re_link1 = re.compile(r'(\[(?P<s>[^\]^]+)\])\((?P<l>#.*)\)', re.S)
re_link2 = re.compile(r'(\[(?P<s>[^\]^]+)\][^(])', re.S)
re_link3 = re.compile(r'(\[(?P<s>[^\]^]+)\])\[(?P<h>[^\]].*)\]', re.S)
source = re_link1.sub(self._get_cross_link, source)
source = re_link2.sub(self._get_cross_link, source)
source = re_link3.sub(self._get_cross_link, source)
return source
def _get_cross_link(self, m):
if 'h' in m.groupdict():
heading = m.group('h')
else:
heading = m.group('s')
for page in self.pages:
for tocitem in page.toc:
if tocitem.heading == heading.replace('\n', ' '):
return '[%s](%s#%s)' % (heading,
page.htmlfile,
tocitem.header_id,
)
return '[%s]' % ref_txt
@property
def title(self):
if self.header.firstline.startswith('%'):
title = self.header.firstline.split('%')[1].strip()
for line in self.header.lines[1:]:
if line.startswith('%'):
break
title = '%s %s' % (title, line.strip())
return title
else:
return pages[0].title
def get_pages(self, path):
pages = []
filelist = self.toc.lines
for filename in filelist:
print("Reading in %s..." % filename)
if not filename: # blank line in toc
print("WARNING: %s contains blank lines" % self.toc.filename)
continue
source = read_file(os.path.join(path, filename))
if source:
pages.append(Page(filename, source))
else:
print("WARNING: Page: %s not found or is empty." % filename)
return pages
def get_meta(self, path):
metafiles = ['TOC', 'HEADER']
meta = {}
for filename in metafiles:
source = read_file(os.path.join(path, filename))
if source:
metafile = TextFile(filename, source)
setattr(self, filename.lower(), metafile)
else:
print("!E: %s not found or is empty. Aborting..." % filename)
exit(1)
return meta
def next_page(self, page):
try:
idx = self.pages.index(page)
except:
return ''
if idx >= len(self.pages) - 1:
return ''
return self.pages[idx+1]
def prev_page(self, page):
try:
idx = self.pages.index(page)
except:
return ''
if idx == 0:
return ''
return self.pages[idx-1]
@property
def toc_links(self):
'''
Returns a list of dictionaries. Each dictionary element contains
a page title and the html file name.
'''
links = []
for page in self.pages:
if self.full_toc:
toc = page.toc
else:
toc = [page.toc[0]]
for tocitem in toc:
link = '%s#%s' % (page.htmlfile, tocitem.header_id)
links.append(dict(link=unicode(link, "utf8"),
text=unicode(tocitem.heading, "utf8"),
level=tocitem.level,
))
return links
@property
def filename_base(self):
filename = self.title
filename = re.sub(r'\s+', ' ', filename)
filename = re.sub(r'[\n ]', '_', filename)
filename = re.sub(r'[:,]', '-', filename)
filename = re.sub(r'_+', '_', filename)
filename = re.sub(r'-_', '-', filename)
filename = re.sub(r'-+', '-', filename)
return filename
@property
def pdf_filename(self):
return self.filename_base + '.pdf'
@property
def epub_filename(self):
return self.filename_base + '.epub'
def publish_pdf(self, pub_path):
pdf_path = os.path.join(pub_path, self.pdf_filename)
src = self.header.source
for page in self.pages:
src += '\n%s' % page.source
doc = pandoc.Document()
doc.markdown = src
pandoc.set_cwd(os.path.abspath(self.src_path))
doc.add_argument('latex-engine=xelatex')
doc.to_file(pdf_path)
pandoc.set_cwd(None)
return self.pdf_filename
def publish_epub(self, pub_path):
epub_path = os.path.join(pub_path, self.epub_filename)
src = self.header.source
for page in self.pages:
src += '\n%s' % page.source
doc = pandoc.Document()
doc.markdown = src
print("epub_path: %s" % epub_path)
pandoc.set_cwd(os.path.abspath(self.src_path))
doc.to_file(epub_path)
pandoc.set_cwd(None)
return self.epub_filename
def publish_assets(self, pub_path):
if not os.path.isdir(self.assets_dir):
return
for asset in os.listdir(self.assets_dir):
src = os.path.join(self.assets_dir, asset)
dst = os.path.join(pub_path, asset)
if os.path.isdir(src):
copy(src, dst)
def publish_html(self, pub_path):
pandoc.set_cwd(None)
for page in self.pages:
print("generating %s..." % page.htmlfile)
template_file = NamedTemporaryFile(mode='w',
suffix='pf.template',
delete=False)
template = self.templater.page_template(self, page)
template_file.write(template)
template_file.close()
doc = pandoc.Document()
doc.add_argument('toc')
doc.add_argument('template=%s' % template_file.name)
doc.add_argument('css=%s' % self.css_file)
doc.markdown = '%s\n%s' % (self.header.source,
self.expand_int_links(page.markdown))
content = doc.html
write_file(os.path.join(pub_path, page.htmlfile),
unicode(content, 'utf-8'))
# If there is not explicit index.html, then link 'index.html'
# to the toplevel page.
if not 'index.md' in self.pages:
src = os.path.join(self.pages[0].htmlfile)
ref = os.path.join(pub_path, 'index.html')
if os.path.exists(ref):
os.remove(ref)
os.symlink(src, ref)
###### Copy any assets to publish directory
self.publish_assets(pub_path)
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