FM / jinja2

/usr/lib64/python2.6/site-packages/jinja2/

/usr/lib64/python2.6/site-packages/jinja2

Name	Size	Mode	Actions
bccache.py	11294	0644	edit dl rm
bccache.pyc	13477	0644	edit dl rm
bccache.pyo	13477	0644	edit dl rm
compiler.py	55923	0644	edit dl rm
compiler.pyc	50915	0644	edit dl rm
compiler.pyo	50845	0644	edit dl rm
constants.py	6229	0644	edit dl rm
constants.pyc	7697	0644	edit dl rm
constants.pyo	7697	0644	edit dl rm
debug.py	9927	0644	edit dl rm
debug.pyc	10166	0644	edit dl rm
debug.pyo	10094	0644	edit dl rm
defaults.py	1050	0644	edit dl rm
defaults.pyc	1614	0644	edit dl rm
defaults.pyo	1614	0644	edit dl rm
environment.py	34651	0644	edit dl rm
environment.pyc	34522	0644	edit dl rm
environment.pyo	34103	0644	edit dl rm
exceptions.py	3073	0644	edit dl rm
exceptions.pyc	4721	0644	edit dl rm
exceptions.pyo	4721	0644	edit dl rm
ext.py	18107	0644	edit dl rm
ext.pyc	17681	0644	edit dl rm
ext.pyo	17614	0644	edit dl rm
filters.py	21806	0644	edit dl rm
filters.pyc	24774	0644	edit dl rm
filters.pyo	24774	0644	edit dl rm
lexer.py	24664	0644	edit dl rm
lexer.pyc	20566	0644	edit dl rm
lexer.pyo	20397	0644	edit dl rm
loaders.py	11507	0644	edit dl rm
loaders.pyc	13218	0644	edit dl rm
loaders.pyo	13218	0644	edit dl rm
meta.py	2846	0644	edit dl rm
meta.pyc	3667	0644	edit dl rm
meta.pyo	3667	0644	edit dl rm
nodes.py	23464	0644	edit dl rm
nodes.pyc	38188	0644	edit dl rm
nodes.pyo	37693	0644	edit dl rm
optimizer.py	2302	0644	edit dl rm
optimizer.pyc	2873	0644	edit dl rm
optimizer.pyo	2873	0644	edit dl rm
parser.py	30676	0644	edit dl rm
parser.pyc	28852	0644	edit dl rm
parser.pyo	28852	0644	edit dl rm
runtime.py	17605	0644	edit dl rm
runtime.pyc	21447	0644	edit dl rm
runtime.pyo	21411	0644	edit dl rm
sandbox.py	9260	0644	edit dl rm
sandbox.pyc	9718	0644	edit dl rm
sandbox.pyo	9718	0644	edit dl rm
tests.py	3266	0644	edit dl rm
tests.pyc	4922	0644	edit dl rm
tests.pyo	4922	0644	edit dl rm
utils.py	24894	0644	edit dl rm
utils.pyc	31508	0644	edit dl rm
utils.pyo	31508	0644	edit dl rm
visitor.py	3316	0644	edit dl rm
visitor.pyc	3850	0644	edit dl rm
visitor.pyo	3850	0644	edit dl rm
_ipysupport.py	949	0644	edit dl rm
_ipysupport.pyc	1776	0644	edit dl rm
_ipysupport.pyo	1776	0644	edit dl rm
_speedups.so	8232	0755	edit dl rm
_stringdefs.py	404256	0644	edit dl rm
_stringdefs.pyc	208525	0644	edit dl rm
_stringdefs.pyo	208525	0644	edit dl rm
__init__.py	2195	0644	edit dl rm
__init__.pyc	2396	0644	edit dl rm
__init__.pyo	2396	0644	edit dl rm

Edit: /usr/lib64/python2.6/site-packages/jinja2/ext.py (18107B)

# -*- coding: utf-8 -*-
"""
    jinja2.ext
    ~~~~~~~~~~

Jinja extensions allow to add custom tags similar to the way django custom
    tags work.  By default two example extensions exist: an i18n and a cache
    extension.

:copyright: (c) 2009 by the Jinja Team.
    :license: BSD.
"""
from collections import deque
from jinja2 import nodes
from jinja2.defaults import *
from jinja2.environment import get_spontaneous_environment
from jinja2.runtime import Undefined, concat
from jinja2.exceptions import TemplateAssertionError, TemplateSyntaxError
from jinja2.utils import contextfunction, import_string, Markup, next

# the only real useful gettext functions for a Jinja template.  Note
# that ugettext must be assigned to gettext as Jinja doesn't support
# non unicode strings.
GETTEXT_FUNCTIONS = ('_', 'gettext', 'ngettext')

class ExtensionRegistry(type):
    """Gives the extension an unique identifier."""

def __new__(cls, name, bases, d):
        rv = type.__new__(cls, name, bases, d)
        rv.identifier = rv.__module__ + '.' + rv.__name__
        return rv

class Extension(object):
    """Extensions can be used to add extra functionality to the Jinja template
    system at the parser level.  Custom extensions are bound to an environment
    but may not store environment specific data on `self`.  The reason for
    this is that an extension can be bound to another environment (for
    overlays) by creating a copy and reassigning the `environment` attribute.

As extensions are created by the environment they cannot accept any
    arguments for configuration.  One may want to work around that by using
    a factory function, but that is not possible as extensions are identified
    by their import name.  The correct way to configure the extension is
    storing the configuration values on the environment.  Because this way the
    environment ends up acting as central configuration storage the
    attributes may clash which is why extensions have to ensure that the names
    they choose for configuration are not too generic.  ``prefix`` for example
    is a terrible name, ``fragment_cache_prefix`` on the other hand is a good
    name as includes the name of the extension (fragment cache).
    """
    __metaclass__ = ExtensionRegistry

#: if this extension parses this is the list of tags it's listening to.
    tags = set()

def __init__(self, environment):
        self.environment = environment

def bind(self, environment):
        """Create a copy of this extension bound to another environment."""
        rv = object.__new__(self.__class__)
        rv.__dict__.update(self.__dict__)
        rv.environment = environment
        return rv

def preprocess(self, source, name, filename=None):
        """This method is called before the actual lexing and can be used to
        preprocess the source.  The `filename` is optional.  The return value
        must be the preprocessed source.
        """
        return source

def filter_stream(self, stream):
        """It's passed a :class:`~jinja2.lexer.TokenStream` that can be used
        to filter tokens returned.  This method has to return an iterable of
        :class:`~jinja2.lexer.Token`\s, but it doesn't have to return a
        :class:`~jinja2.lexer.TokenStream`.

In the `ext` folder of the Jinja2 source distribution there is a file
        called `inlinegettext.py` which implements a filter that utilizes this
        method.
        """
        return stream

def parse(self, parser):
        """If any of the :attr:`tags` matched this method is called with the
        parser as first argument.  The token the parser stream is pointing at
        is the name token that matched.  This method has to return one or a
        list of multiple nodes.
        """
        raise NotImplementedError()

def attr(self, name, lineno=None):
        """Return an attribute node for the current extension.  This is useful
        to pass constants on extensions to generated template code::

self.attr('_my_attribute', lineno=lineno)
        """
        return nodes.ExtensionAttribute(self.identifier, name, lineno=lineno)

def call_method(self, name, args=None, kwargs=None, dyn_args=None,
                    dyn_kwargs=None, lineno=None):
        """Call a method of the extension.  This is a shortcut for
        :meth:`attr` + :class:`jinja2.nodes.Call`.
        """
        if args is None:
            args = []
        if kwargs is None:
            kwargs = []
        return nodes.Call(self.attr(name, lineno=lineno), args, kwargs,
                          dyn_args, dyn_kwargs, lineno=lineno)

@contextfunction
def _gettext_alias(context, string):
    return context.resolve('gettext')(string)

class InternationalizationExtension(Extension):
    """This extension adds gettext support to Jinja2."""
    tags = set(['trans'])

# TODO: the i18n extension is currently reevaluating values in a few
    # situations.  Take this example:
    #   {% trans count=something() %}{{ count }} foo{% pluralize
    #     %}{{ count }} fooss{% endtrans %}
    # something is called twice here.  One time for the gettext value and
    # the other time for the n-parameter of the ngettext function.

def __init__(self, environment):
        Extension.__init__(self, environment)
        environment.globals['_'] = _gettext_alias
        environment.extend(
            install_gettext_translations=self._install,
            install_null_translations=self._install_null,
            uninstall_gettext_translations=self._uninstall,
            extract_translations=self._extract
        )

def _install(self, translations):
        gettext = getattr(translations, 'ugettext', None)
        if gettext is None:
            gettext = translations.gettext
        ngettext = getattr(translations, 'ungettext', None)
        if ngettext is None:
            ngettext = translations.ngettext
        self.environment.globals.update(gettext=gettext, ngettext=ngettext)

def _install_null(self):
        self.environment.globals.update(
            gettext=lambda x: x,
            ngettext=lambda s, p, n: (n != 1 and (p,) or (s,))[0]
        )

def _uninstall(self, translations):
        for key in 'gettext', 'ngettext':
            self.environment.globals.pop(key, None)

def _extract(self, source, gettext_functions=GETTEXT_FUNCTIONS):
        if isinstance(source, basestring):
            source = self.environment.parse(source)
        return extract_from_ast(source, gettext_functions)

def parse(self, parser):
        """Parse a translatable tag."""
        lineno = next(parser.stream).lineno

# find all the variables referenced.  Additionally a variable can be
        # defined in the body of the trans block too, but this is checked at
        # a later state.
        plural_expr = None
        variables = {}
        while parser.stream.current.type != 'block_end':
            if variables:
                parser.stream.expect('comma')

# skip colon for python compatibility
            if parser.stream.skip_if('colon'):
                break

name = parser.stream.expect('name')
            if name.value in variables:
                parser.fail('translatable variable %r defined twice.' %
                            name.value, name.lineno,
                            exc=TemplateAssertionError)

# expressions
            if parser.stream.current.type == 'assign':
                next(parser.stream)
                variables[name.value] = var = parser.parse_expression()
            else:
                variables[name.value] = var = nodes.Name(name.value, 'load')
            if plural_expr is None:
                plural_expr = var

parser.stream.expect('block_end')

plural = plural_names = None
        have_plural = False
        referenced = set()

# now parse until endtrans or pluralize
        singular_names, singular = self._parse_block(parser, True)
        if singular_names:
            referenced.update(singular_names)
            if plural_expr is None:
                plural_expr = nodes.Name(singular_names[0], 'load')

# if we have a pluralize block, we parse that too
        if parser.stream.current.test('name:pluralize'):
            have_plural = True
            next(parser.stream)
            if parser.stream.current.type != 'block_end':
                name = parser.stream.expect('name')
                if name.value not in variables:
                    parser.fail('unknown variable %r for pluralization' %
                                name.value, name.lineno,
                                exc=TemplateAssertionError)
                plural_expr = variables[name.value]
            parser.stream.expect('block_end')
            plural_names, plural = self._parse_block(parser, False)
            next(parser.stream)
            referenced.update(plural_names)
        else:
            next(parser.stream)

# register free names as simple name expressions
        for var in referenced:
            if var not in variables:
                variables[var] = nodes.Name(var, 'load')

# no variables referenced?  no need to escape
        if not referenced:
            singular = singular.replace('%%', '%')
            if plural:
                plural = plural.replace('%%', '%')

if not have_plural:
            plural_expr = None
        elif plural_expr is None:
            parser.fail('pluralize without variables', lineno)

if variables:
            variables = nodes.Dict([nodes.Pair(nodes.Const(x, lineno=lineno), y)
                                    for x, y in variables.items()])
        else:
            variables = None

node = self._make_node(singular, plural, variables, plural_expr)
        node.set_lineno(lineno)
        return node

def _parse_block(self, parser, allow_pluralize):
        """Parse until the next block tag with a given name."""
        referenced = []
        buf = []
        while 1:
            if parser.stream.current.type == 'data':
                buf.append(parser.stream.current.value.replace('%', '%%'))
                next(parser.stream)
            elif parser.stream.current.type == 'variable_begin':
                next(parser.stream)
                name = parser.stream.expect('name').value
                referenced.append(name)
                buf.append('%%(%s)s' % name)
                parser.stream.expect('variable_end')
            elif parser.stream.current.type == 'block_begin':
                next(parser.stream)
                if parser.stream.current.test('name:endtrans'):
                    break
                elif parser.stream.current.test('name:pluralize'):
                    if allow_pluralize:
                        break
                    parser.fail('a translatable section can have only one '
                                'pluralize section')
                parser.fail('control structures in translatable sections are '
                            'not allowed')
            elif parser.stream.eos:
                parser.fail('unclosed translation block')
            else:
                assert False, 'internal parser error'

return referenced, concat(buf)

def _make_node(self, singular, plural, variables, plural_expr):
        """Generates a useful node from the data provided."""
        # singular only:
        if plural_expr is None:
            gettext = nodes.Name('gettext', 'load')
            node = nodes.Call(gettext, [nodes.Const(singular)],
                              [], None, None)

# singular and plural
        else:
            ngettext = nodes.Name('ngettext', 'load')
            node = nodes.Call(ngettext, [
                nodes.Const(singular),
                nodes.Const(plural),
                plural_expr
            ], [], None, None)

# mark the return value as safe if we are in an
        # environment with autoescaping turned on
        if self.environment.autoescape:
            node = nodes.MarkSafe(node)

if variables:
            node = nodes.Mod(node, variables)
        return nodes.Output([node])

class ExprStmtExtension(Extension):
    """Adds a `do` tag to Jinja2 that works like the print statement just
    that it doesn't print the return value.
    """
    tags = set(['do'])

def parse(self, parser):
        node = nodes.ExprStmt(lineno=next(parser.stream).lineno)
        node.node = parser.parse_tuple()
        return node

class LoopControlExtension(Extension):
    """Adds break and continue to the template engine."""
    tags = set(['break', 'continue'])

def parse(self, parser):
        token = next(parser.stream)
        if token.value == 'break':
            return nodes.Break(lineno=token.lineno)
        return nodes.Continue(lineno=token.lineno)

def extract_from_ast(node, gettext_functions=GETTEXT_FUNCTIONS,
                     babel_style=True):
    """Extract localizable strings from the given template node.  Per
    default this function returns matches in babel style that means non string
    parameters as well as keyword arguments are returned as `None`.  This
    allows Babel to figure out what you really meant if you are using
    gettext functions that allow keyword arguments for placeholder expansion.
    If you don't want that behavior set the `babel_style` parameter to `False`
    which causes only strings to be returned and parameters are always stored
    in tuples.  As a consequence invalid gettext calls (calls without a single
    string parameter or string parameters after non-string parameters) are
    skipped.

This example explains the behavior:

>>> from jinja2 import Environment
    >>> env = Environment()
    >>> node = env.parse('{{ (_("foo"), _(), ngettext("foo", "bar", 42)) }}')
    >>> list(extract_from_ast(node))
    [(1, '_', 'foo'), (1, '_', ()), (1, 'ngettext', ('foo', 'bar', None))]
    >>> list(extract_from_ast(node, babel_style=False))
    [(1, '_', ('foo',)), (1, 'ngettext', ('foo', 'bar'))]

For every string found this function yields a ``(lineno, function,
    message)`` tuple, where:

* ``lineno`` is the number of the line on which the string was found,
    * ``function`` is the name of the ``gettext`` function used (if the
      string was extracted from embedded Python code), and
    *  ``message`` is the string itself (a ``unicode`` object, or a tuple
       of ``unicode`` objects for functions with multiple string arguments).
    """
    for node in node.find_all(nodes.Call):
        if not isinstance(node.node, nodes.Name) or \
           node.node.name not in gettext_functions:
            continue

strings = []
        for arg in node.args:
            if isinstance(arg, nodes.Const) and \
               isinstance(arg.value, basestring):
                strings.append(arg.value)
            else:
                strings.append(None)

for arg in node.kwargs:
            strings.append(None)
        if node.dyn_args is not None:
            strings.append(None)
        if node.dyn_kwargs is not None:
            strings.append(None)

if not babel_style:
            strings = tuple(x for x in strings if x is not None)
            if not strings:
                continue
        else:
            if len(strings) == 1:
                strings = strings[0]
            else:
                strings = tuple(strings)
        yield node.lineno, node.node.name, strings

def babel_extract(fileobj, keywords, comment_tags, options):
    """Babel extraction method for Jinja templates.

:param fileobj: the file-like object the messages should be extracted from
    :param keywords: a list of keywords (i.e. function names) that should be
                     recognized as translation functions
    :param comment_tags: a list of translator tags to search for and include
                         in the results.  (Unused)
    :param options: a dictionary of additional options (optional)
    :return: an iterator over ``(lineno, funcname, message, comments)`` tuples.
             (comments will be empty currently)
    """
    extensions = set()
    for extension in options.get('extensions', '').split(','):
        extension = extension.strip()
        if not extension:
            continue
        extensions.add(import_string(extension))
    if InternationalizationExtension not in extensions:
        extensions.add(InternationalizationExtension)

environment = get_spontaneous_environment(
        options.get('block_start_string', BLOCK_START_STRING),
        options.get('block_end_string', BLOCK_END_STRING),
        options.get('variable_start_string', VARIABLE_START_STRING),
        options.get('variable_end_string', VARIABLE_END_STRING),
        options.get('comment_start_string', COMMENT_START_STRING),
        options.get('comment_end_string', COMMENT_END_STRING),
        options.get('line_statement_prefix') or LINE_STATEMENT_PREFIX,
        options.get('line_comment_prefix') or LINE_COMMENT_PREFIX,
        str(options.get('trim_blocks', TRIM_BLOCKS)).lower() in \
            ('1', 'on', 'yes', 'true'),
        NEWLINE_SEQUENCE, frozenset(extensions),
        # fill with defaults so that environments are shared
        # with other spontaneus environments.  The rest of the
        # arguments are optimizer, undefined, finalize, autoescape,
        # loader, cache size, auto reloading setting and the
        # bytecode cache
        True, Undefined, None, False, None, 0, False, None
    )

source = fileobj.read().decode(options.get('encoding', 'utf-8'))
    try:
        node = environment.parse(source)
    except TemplateSyntaxError, e:
        # skip templates with syntax errors
        return
    for lineno, func, message in extract_from_ast(node, keywords):
        yield lineno, func, message, []

#: nicer import names
i18n = InternationalizationExtension
do = ExprStmtExtension
loopcontrols = LoopControlExtension

cmd: