mirror of https://github.com/patacrep/patacrep.git
Engine for LaTeX songbooks
http://www.patacrep.com
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
60 lines
1.8 KiB
60 lines
1.8 KiB
11 years ago
|
#!/usr/bin/env python
|
||
|
|
# -*- coding: utf-8 -*-
|
||
|
|
"""Template for .tex generation settings and utilities"""
|
||
|
|
|
||
|
|
from jinja2 import Environment, FileSystemLoader, ChoiceLoader, PackageLoader
|
||
|
|
import os
|
||
|
|
import re
|
||
|
|
|
||
|
|
_LATEX_SUBS = (
|
||
|
|
(re.compile(r'\\'), r'\\textbackslash'),
|
||
|
|
(re.compile(r'([{}_#%&$])'), r'\\\1'),
|
||
|
|
(re.compile(r'~'), r'\~{}'),
|
||
|
|
(re.compile(r'\^'), r'\^{}'),
|
||
|
|
(re.compile(r'"'), r"''"),
|
||
|
|
(re.compile(r'\.\.\.+'), r'\\ldots'),
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
def _escape_tex(value):
|
||
|
|
'''Escape TeX special characters'''
|
||
|
|
newval = value
|
||
|
|
for pattern, replacement in _LATEX_SUBS:
|
||
|
|
newval = pattern.sub(replacement, newval)
|
||
|
|
return newval
|
||
|
|
|
||
|
|
|
||
|
|
def _init_tex_env(datadir=''):
|
||
|
|
'''Start a new jinja2 environment for .tex creation'''
|
||
|
|
loader = ChoiceLoader([
|
||
|
|
PackageLoader('songbook_core', 'data/templates'),
|
||
|
|
FileSystemLoader(os.path.join(datadir, 'templates')),
|
||
|
|
])
|
||
|
|
texenv = Environment(loader=loader)
|
||
|
|
texenv.block_start_string = '(*'
|
||
|
|
texenv.block_end_string = '*)'
|
||
|
|
texenv.variable_start_string = '(('
|
||
|
|
texenv.variable_end_string = '))'
|
||
|
|
texenv.comment_start_string = '(% comment %)'
|
||
|
|
texenv.comment_end_string = '(% endcomment %)'
|
||
|
|
texenv.filters['escape_tex'] = _escape_tex
|
||
|
|
texenv.trim_blocks = True
|
||
|
|
texenv.lstrip_blocks = True
|
||
|
|
return texenv
|
||
|
|
|
||
|
|
|
||
|
|
def render_tex(output, context, datadir=''):
|
||
|
|
'''Render a template into a .tex file
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
- output: a file object to write the result
|
||
|
|
- context: all the data to populate the template
|
||
|
|
- datadir: location of the user-defined templates
|
||
|
|
'''
|
||
|
|
env = _init_tex_env(datadir=datadir)
|
||
|
|
template = env.get_template(context['template'])
|
||
|
|
|
||
|
|
content = template.render(**context)
|
||
|
|
output.write(content)
|
||
|
|
return None # TODO: gestion des erreurs
|