bundled/jinja2/ext/inlinegettext.py @ 9030dc9517cf

web: add basic tests

This patch adds a new test module `test_web` to automate testing of web
requests. For now the tests are rather simple and only check for
expected status codes.

To set up the flask app within the tests, it has to be configured
properly. This is the reason why the app configuration part in `web.py`
has been moved into an own function - now it may also be used by the
test module.
author Oben Sonne <obensonne@googlemail.com>
date Mon, 02 Jul 2012 22:32:48 +0200
parents 256716e3a3d7
children (none)
# -*- coding: utf-8 -*-
"""
    Inline Gettext
    ~~~~~~~~~~~~~~

    An example extension for Jinja2 that supports inline gettext calls.
    Requires the i18n extension to be loaded.

    :copyright: (c) 2009 by the Jinja Team.
    :license: BSD.
"""
import re
from jinja2.ext import Extension
from jinja2.lexer import Token, count_newlines
from jinja2.exceptions import TemplateSyntaxError


_outside_re = re.compile(r'\\?(gettext|_)\(')
_inside_re = re.compile(r'\\?[()]')


class InlineGettext(Extension):
    """This extension implements support for inline gettext blocks::

        <h1>_(Welcome)</h1>
        <p>_(This is a paragraph)</p>

    Requires the i18n extension to be loaded and configured.
    """

    def filter_stream(self, stream):
        paren_stack = 0

        for token in stream:
            if token.type is not 'data':
                yield token
                continue

            pos = 0
            lineno = token.lineno

            while 1:
                if not paren_stack:
                    match = _outside_re.search(token.value, pos)
                else:
                    match = _inside_re.search(token.value, pos)
                if match is None:
                    break
                new_pos = match.start()
                if new_pos > pos:
                    preval = token.value[pos:new_pos]
                    yield Token(lineno, 'data', preval)
                    lineno += count_newlines(preval)
                gtok = match.group()
                if gtok[0] == '\\':
                    yield Token(lineno, 'data', gtok[1:])
                elif not paren_stack:
                    yield Token(lineno, 'block_begin', None)
                    yield Token(lineno, 'name', 'trans')
                    yield Token(lineno, 'block_end', None)
                    paren_stack = 1
                else:
                    if gtok == '(' or paren_stack > 1:
                        yield Token(lineno, 'data', gtok)
                    paren_stack += gtok == ')' and -1 or 1
                    if not paren_stack:
                        yield Token(lineno, 'block_begin', None)
                        yield Token(lineno, 'name', 'endtrans')
                        yield Token(lineno, 'block_end', None)
                pos = match.end()

            if pos < len(token.value):
                yield Token(lineno, 'data', token.value[pos:])

        if paren_stack:
            raise TemplateSyntaxError('unclosed gettext expression',
                                      token.lineno, stream.name,
                                      stream.filename)