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base/SOURCES/paste-unbundle-tempita.patch

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Index: Paste-1.7.4/paste/util/looper/__init__.py
===================================================================
--- /dev/null
+++ Paste-1.7.4/paste/util/looper/__init__.py
@@ -0,0 +1,4 @@
+try:
+ from tempita._looper import *
+except ImportError:
+ from _looper import *
Index: Paste-1.7.4/paste/util/looper/_looper.py
===================================================================
--- /dev/null
+++ Paste-1.7.4/paste/util/looper/_looper.py
@@ -0,0 +1,152 @@
+"""
+Helper for looping over sequences, particular in templates.
+
+Often in a loop in a template it's handy to know what's next up,
+previously up, if this is the first or last item in the sequence, etc.
+These can be awkward to manage in a normal Python loop, but using the
+looper you can get a better sense of the context. Use like::
+
+ >>> for loop, item in looper(['a', 'b', 'c']):
+ ... print loop.number, item
+ ... if not loop.last:
+ ... print '---'
+ 1 a
+ ---
+ 2 b
+ ---
+ 3 c
+
+"""
+
+__all__ = ['looper']
+
+class looper(object):
+ """
+ Helper for looping (particularly in templates)
+
+ Use this like::
+
+ for loop, item in looper(seq):
+ if loop.first:
+ ...
+ """
+
+ def __init__(self, seq):
+ self.seq = seq
+
+ def __iter__(self):
+ return looper_iter(self.seq)
+
+ def __repr__(self):
+ return '<%s for %r>' % (
+ self.__class__.__name__, self.seq)
+
+class looper_iter(object):
+
+ def __init__(self, seq):
+ self.seq = list(seq)
+ self.pos = 0
+
+ def __iter__(self):
+ return self
+
+ def next(self):
+ if self.pos >= len(self.seq):
+ raise StopIteration
+ result = loop_pos(self.seq, self.pos), self.seq[self.pos]
+ self.pos += 1
+ return result
+
+class loop_pos(object):
+
+ def __init__(self, seq, pos):
+ self.seq = seq
+ self.pos = pos
+
+ def __repr__(self):
+ return '<loop pos=%r at %r>' % (
+ self.seq[pos], pos)
+
+ def index(self):
+ return self.pos
+ index = property(index)
+
+ def number(self):
+ return self.pos + 1
+ number = property(number)
+
+ def item(self):
+ return self.seq[self.pos]
+ item = property(item)
+
+ def next(self):
+ try:
+ return self.seq[self.pos+1]
+ except IndexError:
+ return None
+ next = property(next)
+
+ def previous(self):
+ if self.pos == 0:
+ return None
+ return self.seq[self.pos-1]
+ previous = property(previous)
+
+ def odd(self):
+ return not self.pos % 2
+ odd = property(odd)
+
+ def even(self):
+ return self.pos % 2
+ even = property(even)
+
+ def first(self):
+ return self.pos == 0
+ first = property(first)
+
+ def last(self):
+ return self.pos == len(self.seq)-1
+ last = property(last)
+
+ def length(self):
+ return len(self.seq)
+ length = property(length)
+
+ def first_group(self, getter=None):
+ """
+ Returns true if this item is the start of a new group,
+ where groups mean that some attribute has changed. The getter
+ can be None (the item itself changes), an attribute name like
+ ``'.attr'``, a function, or a dict key or list index.
+ """
+ if self.first:
+ return True
+ return self._compare_group(self.item, self.previous, getter)
+
+ def last_group(self, getter=None):
+ """
+ Returns true if this item is the end of a new group,
+ where groups mean that some attribute has changed. The getter
+ can be None (the item itself changes), an attribute name like
+ ``'.attr'``, a function, or a dict key or list index.
+ """
+ if self.last:
+ return True
+ return self._compare_group(self.item, self.next, getter)
+
+ def _compare_group(self, item, other, getter):
+ if getter is None:
+ return item != other
+ elif (isinstance(getter, basestring)
+ and getter.startswith('.')):
+ getter = getter[1:]
+ if getter.endswith('()'):
+ getter = getter[:-2]
+ return getattr(item, getter)() != getattr(other, getter)()
+ else:
+ return getattr(item, getter) != getattr(other, getter)
+ elif callable(getter):
+ return getter(item) != getter(other)
+ else:
+ return item[getter] != other[getter]
+
Index: Paste-1.7.4/paste/util/looper.py
===================================================================
--- Paste-1.7.4.orig/paste/util/looper.py
+++ /dev/null
@@ -1,152 +0,0 @@
-"""
-Helper for looping over sequences, particular in templates.
-
-Often in a loop in a template it's handy to know what's next up,
-previously up, if this is the first or last item in the sequence, etc.
-These can be awkward to manage in a normal Python loop, but using the
-looper you can get a better sense of the context. Use like::
-
- >>> for loop, item in looper(['a', 'b', 'c']):
- ... print loop.number, item
- ... if not loop.last:
- ... print '---'
- 1 a
- ---
- 2 b
- ---
- 3 c
-
-"""
-
-__all__ = ['looper']
-
-class looper(object):
- """
- Helper for looping (particularly in templates)
-
- Use this like::
-
- for loop, item in looper(seq):
- if loop.first:
- ...
- """
-
- def __init__(self, seq):
- self.seq = seq
-
- def __iter__(self):
- return looper_iter(self.seq)
-
- def __repr__(self):
- return '<%s for %r>' % (
- self.__class__.__name__, self.seq)
-
-class looper_iter(object):
-
- def __init__(self, seq):
- self.seq = list(seq)
- self.pos = 0
-
- def __iter__(self):
- return self
-
- def next(self):
- if self.pos >= len(self.seq):
- raise StopIteration
- result = loop_pos(self.seq, self.pos), self.seq[self.pos]
- self.pos += 1
- return result
-
-class loop_pos(object):
-
- def __init__(self, seq, pos):
- self.seq = seq
- self.pos = pos
-
- def __repr__(self):
- return '<loop pos=%r at %r>' % (
- self.seq[pos], pos)
-
- def index(self):
- return self.pos
- index = property(index)
-
- def number(self):
- return self.pos + 1
- number = property(number)
-
- def item(self):
- return self.seq[self.pos]
- item = property(item)
-
- def next(self):
- try:
- return self.seq[self.pos+1]
- except IndexError:
- return None
- next = property(next)
-
- def previous(self):
- if self.pos == 0:
- return None
- return self.seq[self.pos-1]
- previous = property(previous)
-
- def odd(self):
- return not self.pos % 2
- odd = property(odd)
-
- def even(self):
- return self.pos % 2
- even = property(even)
-
- def first(self):
- return self.pos == 0
- first = property(first)
-
- def last(self):
- return self.pos == len(self.seq)-1
- last = property(last)
-
- def length(self):
- return len(self.seq)
- length = property(length)
-
- def first_group(self, getter=None):
- """
- Returns true if this item is the start of a new group,
- where groups mean that some attribute has changed. The getter
- can be None (the item itself changes), an attribute name like
- ``'.attr'``, a function, or a dict key or list index.
- """
- if self.first:
- return True
- return self._compare_group(self.item, self.previous, getter)
-
- def last_group(self, getter=None):
- """
- Returns true if this item is the end of a new group,
- where groups mean that some attribute has changed. The getter
- can be None (the item itself changes), an attribute name like
- ``'.attr'``, a function, or a dict key or list index.
- """
- if self.last:
- return True
- return self._compare_group(self.item, self.next, getter)
-
- def _compare_group(self, item, other, getter):
- if getter is None:
- return item != other
- elif (isinstance(getter, basestring)
- and getter.startswith('.')):
- getter = getter[1:]
- if getter.endswith('()'):
- getter = getter[:-2]
- return getattr(item, getter)() != getattr(other, getter)()
- else:
- return getattr(item, getter) != getattr(other, getter)
- elif callable(getter):
- return getter(item) != getter(other)
- else:
- return item[getter] != other[getter]
-
Index: Paste-1.7.4/paste/util/template/__init__.py
===================================================================
--- /dev/null
+++ Paste-1.7.4/paste/util/template/__init__.py
@@ -0,0 +1,6 @@
+try:
+ from tempita import *
+ from tempita import paste_script_template_renderer
+except ImportError:
+ from _template import *
+ from _template import paste_script_template_renderer
Index: Paste-1.7.4/paste/util/template/_template.py
===================================================================
--- /dev/null
+++ Paste-1.7.4/paste/util/template/_template.py
@@ -0,0 +1,758 @@
+"""
+A small templating language
+
+This implements a small templating language for use internally in
+Paste and Paste Script. This language implements if/elif/else,
+for/continue/break, expressions, and blocks of Python code. The
+syntax is::
+
+ {{any expression (function calls etc)}}
+ {{any expression | filter}}
+ {{for x in y}}...{{endfor}}
+ {{if x}}x{{elif y}}y{{else}}z{{endif}}
+ {{py:x=1}}
+ {{py:
+ def foo(bar):
+ return 'baz'
+ }}
+ {{default var = default_value}}
+ {{# comment}}
+
+You use this with the ``Template`` class or the ``sub`` shortcut.
+The ``Template`` class takes the template string and the name of
+the template (for errors) and a default namespace. Then (like
+``string.Template``) you can call the ``tmpl.substitute(**kw)``
+method to make a substitution (or ``tmpl.substitute(a_dict)``).
+
+``sub(content, **kw)`` substitutes the template immediately. You
+can use ``__name='tmpl.html'`` to set the name of the template.
+
+If there are syntax errors ``TemplateError`` will be raised.
+"""
+
+import re
+import sys
+import cgi
+import urllib
+from paste.util.looper import looper
+
+__all__ = ['TemplateError', 'Template', 'sub', 'HTMLTemplate',
+ 'sub_html', 'html', 'bunch']
+
+token_re = re.compile(r'\{\{|\}\}')
+in_re = re.compile(r'\s+in\s+')
+var_re = re.compile(r'^[a-z_][a-z0-9_]*$', re.I)
+
+class TemplateError(Exception):
+ """Exception raised while parsing a template
+ """
+
+ def __init__(self, message, position, name=None):
+ self.message = message
+ self.position = position
+ self.name = name
+
+ def __str__(self):
+ msg = '%s at line %s column %s' % (
+ self.message, self.position[0], self.position[1])
+ if self.name:
+ msg += ' in %s' % self.name
+ return msg
+
+class _TemplateContinue(Exception):
+ pass
+
+class _TemplateBreak(Exception):
+ pass
+
+class Template(object):
+
+ default_namespace = {
+ 'start_braces': '{{',
+ 'end_braces': '}}',
+ 'looper': looper,
+ }
+
+ default_encoding = 'utf8'
+
+ def __init__(self, content, name=None, namespace=None):
+ self.content = content
+ self._unicode = isinstance(content, unicode)
+ self.name = name
+ self._parsed = parse(content, name=name)
+ if namespace is None:
+ namespace = {}
+ self.namespace = namespace
+
+ def from_filename(cls, filename, namespace=None, encoding=None):
+ f = open(filename, 'rb')
+ c = f.read()
+ f.close()
+ if encoding:
+ c = c.decode(encoding)
+ return cls(content=c, name=filename, namespace=namespace)
+
+ from_filename = classmethod(from_filename)
+
+ def __repr__(self):
+ return '<%s %s name=%r>' % (
+ self.__class__.__name__,
+ hex(id(self))[2:], self.name)
+
+ def substitute(self, *args, **kw):
+ if args:
+ if kw:
+ raise TypeError(
+ "You can only give positional *or* keyword arguments")
+ if len(args) > 1:
+ raise TypeError(
+ "You can only give on positional argument")
+ kw = args[0]
+ ns = self.default_namespace.copy()
+ ns.update(self.namespace)
+ ns.update(kw)
+ result = self._interpret(ns)
+ return result
+
+ def _interpret(self, ns):
+ __traceback_hide__ = True
+ parts = []
+ self._interpret_codes(self._parsed, ns, out=parts)
+ return ''.join(parts)
+
+ def _interpret_codes(self, codes, ns, out):
+ __traceback_hide__ = True
+ for item in codes:
+ if isinstance(item, basestring):
+ out.append(item)
+ else:
+ self._interpret_code(item, ns, out)
+
+ def _interpret_code(self, code, ns, out):
+ __traceback_hide__ = True
+ name, pos = code[0], code[1]
+ if name == 'py':
+ self._exec(code[2], ns, pos)
+ elif name == 'continue':
+ raise _TemplateContinue()
+ elif name == 'break':
+ raise _TemplateBreak()
+ elif name == 'for':
+ vars, expr, content = code[2], code[3], code[4]
+ expr = self._eval(expr, ns, pos)
+ self._interpret_for(vars, expr, content, ns, out)
+ elif name == 'cond':
+ parts = code[2:]
+ self._interpret_if(parts, ns, out)
+ elif name == 'expr':
+ parts = code[2].split('|')
+ base = self._eval(parts[0], ns, pos)
+ for part in parts[1:]:
+ func = self._eval(part, ns, pos)
+ base = func(base)
+ out.append(self._repr(base, pos))
+ elif name == 'default':
+ var, expr = code[2], code[3]
+ if var not in ns:
+ result = self._eval(expr, ns, pos)
+ ns[var] = result
+ elif name == 'comment':
+ return
+ else:
+ assert 0, "Unknown code: %r" % name
+
+ def _interpret_for(self, vars, expr, content, ns, out):
+ __traceback_hide__ = True
+ for item in expr:
+ if len(vars) == 1:
+ ns[vars[0]] = item
+ else:
+ if len(vars) != len(item):
+ raise ValueError(
+ 'Need %i items to unpack (got %i items)'
+ % (len(vars), len(item)))
+ for name, value in zip(vars, item):
+ ns[name] = value
+ try:
+ self._interpret_codes(content, ns, out)
+ except _TemplateContinue:
+ continue
+ except _TemplateBreak:
+ break
+
+ def _interpret_if(self, parts, ns, out):
+ __traceback_hide__ = True
+ # @@: if/else/else gets through
+ for part in parts:
+ assert not isinstance(part, basestring)
+ name, pos = part[0], part[1]
+ if name == 'else':
+ result = True
+ else:
+ result = self._eval(part[2], ns, pos)
+ if result:
+ self._interpret_codes(part[3], ns, out)
+ break
+
+ def _eval(self, code, ns, pos):
+ __traceback_hide__ = True
+ try:
+ value = eval(code, ns)
+ return value
+ except:
+ exc_info = sys.exc_info()
+ e = exc_info[1]
+ if getattr(e, 'args'):
+ arg0 = e.args[0]
+ else:
+ arg0 = str(e)
+ e.args = (self._add_line_info(arg0, pos),)
+ raise exc_info[0], e, exc_info[2]
+
+ def _exec(self, code, ns, pos):
+ __traceback_hide__ = True
+ try:
+ exec code in ns
+ except:
+ exc_info = sys.exc_info()
+ e = exc_info[1]
+ e.args = (self._add_line_info(e.args[0], pos),)
+ raise exc_info[0], e, exc_info[2]
+
+ def _repr(self, value, pos):
+ __traceback_hide__ = True
+ try:
+ if value is None:
+ return ''
+ if self._unicode:
+ try:
+ value = unicode(value)
+ except UnicodeDecodeError:
+ value = str(value)
+ else:
+ value = str(value)
+ except:
+ exc_info = sys.exc_info()
+ e = exc_info[1]
+ e.args = (self._add_line_info(e.args[0], pos),)
+ raise exc_info[0], e, exc_info[2]
+ else:
+ if self._unicode and isinstance(value, str):
+ if not self.decode_encoding:
+ raise UnicodeDecodeError(
+ 'Cannot decode str value %r into unicode '
+ '(no default_encoding provided)' % value)
+ value = value.decode(self.default_encoding)
+ elif not self._unicode and isinstance(value, unicode):
+ if not self.decode_encoding:
+ raise UnicodeEncodeError(
+ 'Cannot encode unicode value %r into str '
+ '(no default_encoding provided)' % value)
+ value = value.encode(self.default_encoding)
+ return value
+
+
+ def _add_line_info(self, msg, pos):
+ msg = "%s at line %s column %s" % (
+ msg, pos[0], pos[1])
+ if self.name:
+ msg += " in file %s" % self.name
+ return msg
+
+def sub(content, **kw):
+ name = kw.get('__name')
+ tmpl = Template(content, name=name)
+ return tmpl.substitute(kw)
+ return result
+
+def paste_script_template_renderer(content, vars, filename=None):
+ tmpl = Template(content, name=filename)
+ return tmpl.substitute(vars)
+
+class bunch(dict):
+
+ def __init__(self, **kw):
+ for name, value in kw.items():
+ setattr(self, name, value)
+
+ def __setattr__(self, name, value):
+ self[name] = value
+
+ def __getattr__(self, name):
+ try:
+ return self[name]
+ except KeyError:
+ raise AttributeError(name)
+
+ def __getitem__(self, key):
+ if 'default' in self:
+ try:
+ return dict.__getitem__(self, key)
+ except KeyError:
+ return dict.__getitem__(self, 'default')
+ else:
+ return dict.__getitem__(self, key)
+
+ def __repr__(self):
+ items = [
+ (k, v) for k, v in self.items()]
+ items.sort()
+ return '<%s %s>' % (
+ self.__class__.__name__,
+ ' '.join(['%s=%r' % (k, v) for k, v in items]))
+
+############################################################
+## HTML Templating
+############################################################
+
+class html(object):
+ def __init__(self, value):
+ self.value = value
+ def __str__(self):
+ return self.value
+ def __repr__(self):
+ return '<%s %r>' % (
+ self.__class__.__name__, self.value)
+
+def html_quote(value):
+ if value is None:
+ return ''
+ if not isinstance(value, basestring):
+ if hasattr(value, '__unicode__'):
+ value = unicode(value)
+ else:
+ value = str(value)
+ value = cgi.escape(value, 1)
+ if isinstance(value, unicode):
+ value = value.encode('ascii', 'xmlcharrefreplace')
+ return value
+
+def url(v):
+ if not isinstance(v, basestring):
+ if hasattr(v, '__unicode__'):
+ v = unicode(v)
+ else:
+ v = str(v)
+ if isinstance(v, unicode):
+ v = v.encode('utf8')
+ return urllib.quote(v)
+
+def attr(**kw):
+ kw = kw.items()
+ kw.sort()
+ parts = []
+ for name, value in kw:
+ if value is None:
+ continue
+ if name.endswith('_'):
+ name = name[:-1]
+ parts.append('%s="%s"' % (html_quote(name), html_quote(value)))
+ return html(' '.join(parts))
+
+class HTMLTemplate(Template):
+
+ default_namespace = Template.default_namespace.copy()
+ default_namespace.update(dict(
+ html=html,
+ attr=attr,
+ url=url,
+ ))
+
+ def _repr(self, value, pos):
+ plain = Template._repr(self, value, pos)
+ if isinstance(value, html):
+ return plain
+ else:
+ return html_quote(plain)
+
+def sub_html(content, **kw):
+ name = kw.get('__name')
+ tmpl = HTMLTemplate(content, name=name)
+ return tmpl.substitute(kw)
+ return result
+
+
+############################################################
+## Lexing and Parsing
+############################################################
+
+def lex(s, name=None, trim_whitespace=True):
+ """
+ Lex a string into chunks:
+
+ >>> lex('hey')
+ ['hey']
+ >>> lex('hey {{you}}')
+ ['hey ', ('you', (1, 7))]
+ >>> lex('hey {{')
+ Traceback (most recent call last):
+ ...
+ TemplateError: No }} to finish last expression at line 1 column 7
+ >>> lex('hey }}')
+ Traceback (most recent call last):
+ ...
+ TemplateError: }} outside expression at line 1 column 7
+ >>> lex('hey {{ {{')
+ Traceback (most recent call last):
+ ...
+ TemplateError: {{ inside expression at line 1 column 10
+
+ """
+ in_expr = False
+ chunks = []
+ last = 0
+ last_pos = (1, 1)
+ for match in token_re.finditer(s):
+ expr = match.group(0)
+ pos = find_position(s, match.end())
+ if expr == '{{' and in_expr:
+ raise TemplateError('{{ inside expression', position=pos,
+ name=name)
+ elif expr == '}}' and not in_expr:
+ raise TemplateError('}} outside expression', position=pos,
+ name=name)
+ if expr == '{{':
+ part = s[last:match.start()]
+ if part:
+ chunks.append(part)
+ in_expr = True
+ else:
+ chunks.append((s[last:match.start()], last_pos))
+ in_expr = False
+ last = match.end()
+ last_pos = pos
+ if in_expr:
+ raise TemplateError('No }} to finish last expression',
+ name=name, position=last_pos)
+ part = s[last:]
+ if part:
+ chunks.append(part)
+ if trim_whitespace:
+ chunks = trim_lex(chunks)
+ return chunks
+
+statement_re = re.compile(r'^(?:if |elif |else |for |py:)')
+single_statements = ['endif', 'endfor', 'continue', 'break']
+trail_whitespace_re = re.compile(r'\n[\t ]*$')
+lead_whitespace_re = re.compile(r'^[\t ]*\n')
+
+def trim_lex(tokens):
+ r"""
+ Takes a lexed set of tokens, and removes whitespace when there is
+ a directive on a line by itself:
+
+ >>> tokens = lex('{{if x}}\nx\n{{endif}}\ny', trim_whitespace=False)
+ >>> tokens
+ [('if x', (1, 3)), '\nx\n', ('endif', (3, 3)), '\ny']
+ >>> trim_lex(tokens)
+ [('if x', (1, 3)), 'x\n', ('endif', (3, 3)), 'y']
+ """
+ for i in range(len(tokens)):
+ current = tokens[i]
+ if isinstance(tokens[i], basestring):
+ # we don't trim this
+ continue
+ item = current[0]
+ if not statement_re.search(item) and item not in single_statements:
+ continue
+ if not i:
+ prev = ''
+ else:
+ prev = tokens[i-1]
+ if i+1 >= len(tokens):
+ next = ''
+ else:
+ next = tokens[i+1]
+ if (not isinstance(next, basestring)
+ or not isinstance(prev, basestring)):
+ continue
+ if ((not prev or trail_whitespace_re.search(prev))
+ and (not next or lead_whitespace_re.search(next))):
+ if prev:
+ m = trail_whitespace_re.search(prev)
+ # +1 to leave the leading \n on:
+ prev = prev[:m.start()+1]
+ tokens[i-1] = prev
+ if next:
+ m = lead_whitespace_re.search(next)
+ next = next[m.end():]
+ tokens[i+1] = next
+ return tokens
+
+
+def find_position(string, index):
+ """Given a string and index, return (line, column)"""
+ leading = string[:index].splitlines()
+ return (len(leading), len(leading[-1])+1)
+
+def parse(s, name=None):
+ r"""
+ Parses a string into a kind of AST
+
+ >>> parse('{{x}}')
+ [('expr', (1, 3), 'x')]
+ >>> parse('foo')
+ ['foo']
+ >>> parse('{{if x}}test{{endif}}')
+ [('cond', (1, 3), ('if', (1, 3), 'x', ['test']))]
+ >>> parse('series->{{for x in y}}x={{x}}{{endfor}}')
+ ['series->', ('for', (1, 11), ('x',), 'y', ['x=', ('expr', (1, 27), 'x')])]
+ >>> parse('{{for x, y in z:}}{{continue}}{{endfor}}')
+ [('for', (1, 3), ('x', 'y'), 'z', [('continue', (1, 21))])]
+ >>> parse('{{py:x=1}}')
+ [('py', (1, 3), 'x=1')]
+ >>> parse('{{if x}}a{{elif y}}b{{else}}c{{endif}}')
+ [('cond', (1, 3), ('if', (1, 3), 'x', ['a']), ('elif', (1, 12), 'y', ['b']), ('else', (1, 23), None, ['c']))]
+
+ Some exceptions::
+
+ >>> parse('{{continue}}')
+ Traceback (most recent call last):
+ ...
+ TemplateError: continue outside of for loop at line 1 column 3
+ >>> parse('{{if x}}foo')
+ Traceback (most recent call last):
+ ...
+ TemplateError: No {{endif}} at line 1 column 3
+ >>> parse('{{else}}')
+ Traceback (most recent call last):
+ ...
+ TemplateError: else outside of an if block at line 1 column 3
+ >>> parse('{{if x}}{{for x in y}}{{endif}}{{endfor}}')
+ Traceback (most recent call last):
+ ...
+ TemplateError: Unexpected endif at line 1 column 25
+ >>> parse('{{if}}{{endif}}')
+ Traceback (most recent call last):
+ ...
+ TemplateError: if with no expression at line 1 column 3
+ >>> parse('{{for x y}}{{endfor}}')
+ Traceback (most recent call last):
+ ...
+ TemplateError: Bad for (no "in") in 'x y' at line 1 column 3
+ >>> parse('{{py:x=1\ny=2}}')
+ Traceback (most recent call last):
+ ...
+ TemplateError: Multi-line py blocks must start with a newline at line 1 column 3
+ """
+ tokens = lex(s, name=name)
+ result = []
+ while tokens:
+ next, tokens = parse_expr(tokens, name)
+ result.append(next)
+ return result
+
+def parse_expr(tokens, name, context=()):
+ if isinstance(tokens[0], basestring):
+ return tokens[0], tokens[1:]
+ expr, pos = tokens[0]
+ expr = expr.strip()
+ if expr.startswith('py:'):
+ expr = expr[3:].lstrip(' \t')
+ if expr.startswith('\n'):
+ expr = expr[1:]
+ else:
+ if '\n' in expr:
+ raise TemplateError(
+ 'Multi-line py blocks must start with a newline',
+ position=pos, name=name)
+ return ('py', pos, expr), tokens[1:]
+ elif expr in ('continue', 'break'):
+ if 'for' not in context:
+ raise TemplateError(
+ 'continue outside of for loop',
+ position=pos, name=name)
+ return (expr, pos), tokens[1:]
+ elif expr.startswith('if '):
+ return parse_cond(tokens, name, context)
+ elif (expr.startswith('elif ')
+ or expr == 'else'):
+ raise TemplateError(
+ '%s outside of an if block' % expr.split()[0],
+ position=pos, name=name)
+ elif expr in ('if', 'elif', 'for'):
+ raise TemplateError(
+ '%s with no expression' % expr,
+ position=pos, name=name)
+ elif expr in ('endif', 'endfor'):
+ raise TemplateError(
+ 'Unexpected %s' % expr,
+ position=pos, name=name)
+ elif expr.startswith('for '):
+ return parse_for(tokens, name, context)
+ elif expr.startswith('default '):
+ return parse_default(tokens, name, context)
+ elif expr.startswith('#'):
+ return ('comment', pos, tokens[0][0]), tokens[1:]
+ return ('expr', pos, tokens[0][0]), tokens[1:]
+
+def parse_cond(tokens, name, context):
+ start = tokens[0][1]
+ pieces = []
+ context = context + ('if',)
+ while 1:
+ if not tokens:
+ raise TemplateError(
+ 'Missing {{endif}}',
+ position=start, name=name)
+ if (isinstance(tokens[0], tuple)
+ and tokens[0][0] == 'endif'):
+ return ('cond', start) + tuple(pieces), tokens[1:]
+ next, tokens = parse_one_cond(tokens, name, context)
+ pieces.append(next)
+
+def parse_one_cond(tokens, name, context):
+ (first, pos), tokens = tokens[0], tokens[1:]
+ content = []
+ if first.endswith(':'):
+ first = first[:-1]
+ if first.startswith('if '):
+ part = ('if', pos, first[3:].lstrip(), content)
+ elif first.startswith('elif '):
+ part = ('elif', pos, first[5:].lstrip(), content)
+ elif first == 'else':
+ part = ('else', pos, None, content)
+ else:
+ assert 0, "Unexpected token %r at %s" % (first, pos)
+ while 1:
+ if not tokens:
+ raise TemplateError(
+ 'No {{endif}}',
+ position=pos, name=name)
+ if (isinstance(tokens[0], tuple)
+ and (tokens[0][0] == 'endif'
+ or tokens[0][0].startswith('elif ')
+ or tokens[0][0] == 'else')):
+ return part, tokens
+ next, tokens = parse_expr(tokens, name, context)
+ content.append(next)
+
+def parse_for(tokens, name, context):
+ first, pos = tokens[0]
+ tokens = tokens[1:]
+ context = ('for',) + context
+ content = []
+ assert first.startswith('for ')
+ if first.endswith(':'):
+ first = first[:-1]
+ first = first[3:].strip()
+ match = in_re.search(first)
+ if not match:
+ raise TemplateError(
+ 'Bad for (no "in") in %r' % first,
+ position=pos, name=name)
+ vars = first[:match.start()]
+ if '(' in vars:
+ raise TemplateError(
+ 'You cannot have () in the variable section of a for loop (%r)'
+ % vars, position=pos, name=name)
+ vars = tuple([
+ v.strip() for v in first[:match.start()].split(',')
+ if v.strip()])
+ expr = first[match.end():]
+ while 1:
+ if not tokens:
+ raise TemplateError(
+ 'No {{endfor}}',
+ position=pos, name=name)
+ if (isinstance(tokens[0], tuple)
+ and tokens[0][0] == 'endfor'):
+ return ('for', pos, vars, expr, content), tokens[1:]
+ next, tokens = parse_expr(tokens, name, context)
+ content.append(next)
+
+def parse_default(tokens, name, context):
+ first, pos = tokens[0]
+ assert first.startswith('default ')
+ first = first.split(None, 1)[1]
+ parts = first.split('=', 1)
+ if len(parts) == 1:
+ raise TemplateError(
+ "Expression must be {{default var=value}}; no = found in %r" % first,
+ position=pos, name=name)
+ var = parts[0].strip()
+ if ',' in var:
+ raise TemplateError(
+ "{{default x, y = ...}} is not supported",
+ position=pos, name=name)
+ if not var_re.search(var):
+ raise TemplateError(
+ "Not a valid variable name for {{default}}: %r"
+ % var, position=pos, name=name)
+ expr = parts[1].strip()
+ return ('default', pos, var, expr), tokens[1:]
+
+_fill_command_usage = """\
+%prog [OPTIONS] TEMPLATE arg=value
+
+Use py:arg=value to set a Python value; otherwise all values are
+strings.
+"""
+
+def fill_command(args=None):
+ import sys, optparse, pkg_resources, os
+ if args is None:
+ args = sys.argv[1:]
+ dist = pkg_resources.get_distribution('Paste')
+ parser = optparse.OptionParser(
+ version=str(dist),
+ usage=_fill_command_usage)
+ parser.add_option(
+ '-o', '--output',
+ dest='output',
+ metavar="FILENAME",
+ help="File to write output to (default stdout)")
+ parser.add_option(
+ '--html',
+ dest='use_html',
+ action='store_true',
+ help="Use HTML style filling (including automatic HTML quoting)")
+ parser.add_option(
+ '--env',
+ dest='use_env',
+ action='store_true',
+ help="Put the environment in as top-level variables")
+ options, args = parser.parse_args(args)
+ if len(args) < 1:
+ print 'You must give a template filename'
+ print dir(parser)
+ assert 0
+ template_name = args[0]
+ args = args[1:]
+ vars = {}
+ if options.use_env:
+ vars.update(os.environ)
+ for value in args:
+ if '=' not in value:
+ print 'Bad argument: %r' % value
+ sys.exit(2)
+ name, value = value.split('=', 1)
+ if name.startswith('py:'):
+ name = name[:3]
+ value = eval(value)
+ vars[name] = value
+ if template_name == '-':
+ template_content = sys.stdin.read()
+ template_name = '<stdin>'
+ else:
+ f = open(template_name, 'rb')
+ template_content = f.read()
+ f.close()
+ if options.use_html:
+ TemplateClass = HTMLTemplate
+ else:
+ TemplateClass = Template
+ template = TemplateClass(template_content, name=template_name)
+ result = template.substitute(vars)
+ if options.output:
+ f = open(options.output, 'wb')
+ f.write(result)
+ f.close()
+ else:
+ sys.stdout.write(result)
+
+if __name__ == '__main__':
+ from paste.util.template import fill_command
+ fill_command()
+
+
Index: Paste-1.7.4/paste/util/template.py
===================================================================
--- Paste-1.7.4.orig/paste/util/template.py
+++ /dev/null
@@ -1,758 +0,0 @@
-"""
-A small templating language
-
-This implements a small templating language for use internally in
-Paste and Paste Script. This language implements if/elif/else,
-for/continue/break, expressions, and blocks of Python code. The
-syntax is::
-
- {{any expression (function calls etc)}}
- {{any expression | filter}}
- {{for x in y}}...{{endfor}}
- {{if x}}x{{elif y}}y{{else}}z{{endif}}
- {{py:x=1}}
- {{py:
- def foo(bar):
- return 'baz'
- }}
- {{default var = default_value}}
- {{# comment}}
-
-You use this with the ``Template`` class or the ``sub`` shortcut.
-The ``Template`` class takes the template string and the name of
-the template (for errors) and a default namespace. Then (like
-``string.Template``) you can call the ``tmpl.substitute(**kw)``
-method to make a substitution (or ``tmpl.substitute(a_dict)``).
-
-``sub(content, **kw)`` substitutes the template immediately. You
-can use ``__name='tmpl.html'`` to set the name of the template.
-
-If there are syntax errors ``TemplateError`` will be raised.
-"""
-
-import re
-import sys
-import cgi
-import urllib
-from paste.util.looper import looper
-
-__all__ = ['TemplateError', 'Template', 'sub', 'HTMLTemplate',
- 'sub_html', 'html', 'bunch']
-
-token_re = re.compile(r'\{\{|\}\}')
-in_re = re.compile(r'\s+in\s+')
-var_re = re.compile(r'^[a-z_][a-z0-9_]*$', re.I)
-
-class TemplateError(Exception):
- """Exception raised while parsing a template
- """
-
- def __init__(self, message, position, name=None):
- self.message = message
- self.position = position
- self.name = name
-
- def __str__(self):
- msg = '%s at line %s column %s' % (
- self.message, self.position[0], self.position[1])
- if self.name:
- msg += ' in %s' % self.name
- return msg
-
-class _TemplateContinue(Exception):
- pass
-
-class _TemplateBreak(Exception):
- pass
-
-class Template(object):
-
- default_namespace = {
- 'start_braces': '{{',
- 'end_braces': '}}',
- 'looper': looper,
- }
-
- default_encoding = 'utf8'
-
- def __init__(self, content, name=None, namespace=None):
- self.content = content
- self._unicode = isinstance(content, unicode)
- self.name = name
- self._parsed = parse(content, name=name)
- if namespace is None:
- namespace = {}
- self.namespace = namespace
-
- def from_filename(cls, filename, namespace=None, encoding=None):
- f = open(filename, 'rb')
- c = f.read()
- f.close()
- if encoding:
- c = c.decode(encoding)
- return cls(content=c, name=filename, namespace=namespace)
-
- from_filename = classmethod(from_filename)
-
- def __repr__(self):
- return '<%s %s name=%r>' % (
- self.__class__.__name__,
- hex(id(self))[2:], self.name)
-
- def substitute(self, *args, **kw):
- if args:
- if kw:
- raise TypeError(
- "You can only give positional *or* keyword arguments")
- if len(args) > 1:
- raise TypeError(
- "You can only give on positional argument")
- kw = args[0]
- ns = self.default_namespace.copy()
- ns.update(self.namespace)
- ns.update(kw)
- result = self._interpret(ns)
- return result
-
- def _interpret(self, ns):
- __traceback_hide__ = True
- parts = []
- self._interpret_codes(self._parsed, ns, out=parts)
- return ''.join(parts)
-
- def _interpret_codes(self, codes, ns, out):
- __traceback_hide__ = True
- for item in codes:
- if isinstance(item, basestring):
- out.append(item)
- else:
- self._interpret_code(item, ns, out)
-
- def _interpret_code(self, code, ns, out):
- __traceback_hide__ = True
- name, pos = code[0], code[1]
- if name == 'py':
- self._exec(code[2], ns, pos)
- elif name == 'continue':
- raise _TemplateContinue()
- elif name == 'break':
- raise _TemplateBreak()
- elif name == 'for':
- vars, expr, content = code[2], code[3], code[4]
- expr = self._eval(expr, ns, pos)
- self._interpret_for(vars, expr, content, ns, out)
- elif name == 'cond':
- parts = code[2:]
- self._interpret_if(parts, ns, out)
- elif name == 'expr':
- parts = code[2].split('|')
- base = self._eval(parts[0], ns, pos)
- for part in parts[1:]:
- func = self._eval(part, ns, pos)
- base = func(base)
- out.append(self._repr(base, pos))
- elif name == 'default':
- var, expr = code[2], code[3]
- if var not in ns:
- result = self._eval(expr, ns, pos)
- ns[var] = result
- elif name == 'comment':
- return
- else:
- assert 0, "Unknown code: %r" % name
-
- def _interpret_for(self, vars, expr, content, ns, out):
- __traceback_hide__ = True
- for item in expr:
- if len(vars) == 1:
- ns[vars[0]] = item
- else:
- if len(vars) != len(item):
- raise ValueError(
- 'Need %i items to unpack (got %i items)'
- % (len(vars), len(item)))
- for name, value in zip(vars, item):
- ns[name] = value
- try:
- self._interpret_codes(content, ns, out)
- except _TemplateContinue:
- continue
- except _TemplateBreak:
- break
-
- def _interpret_if(self, parts, ns, out):
- __traceback_hide__ = True
- # @@: if/else/else gets through
- for part in parts:
- assert not isinstance(part, basestring)
- name, pos = part[0], part[1]
- if name == 'else':
- result = True
- else:
- result = self._eval(part[2], ns, pos)
- if result:
- self._interpret_codes(part[3], ns, out)
- break
-
- def _eval(self, code, ns, pos):
- __traceback_hide__ = True
- try:
- value = eval(code, ns)
- return value
- except:
- exc_info = sys.exc_info()
- e = exc_info[1]
- if getattr(e, 'args'):
- arg0 = e.args[0]
- else:
- arg0 = str(e)
- e.args = (self._add_line_info(arg0, pos),)
- raise exc_info[0], e, exc_info[2]
-
- def _exec(self, code, ns, pos):
- __traceback_hide__ = True
- try:
- exec code in ns
- except:
- exc_info = sys.exc_info()
- e = exc_info[1]
- e.args = (self._add_line_info(e.args[0], pos),)
- raise exc_info[0], e, exc_info[2]
-
- def _repr(self, value, pos):
- __traceback_hide__ = True
- try:
- if value is None:
- return ''
- if self._unicode:
- try:
- value = unicode(value)
- except UnicodeDecodeError:
- value = str(value)
- else:
- value = str(value)
- except:
- exc_info = sys.exc_info()
- e = exc_info[1]
- e.args = (self._add_line_info(e.args[0], pos),)
- raise exc_info[0], e, exc_info[2]
- else:
- if self._unicode and isinstance(value, str):
- if not self.decode_encoding:
- raise UnicodeDecodeError(
- 'Cannot decode str value %r into unicode '
- '(no default_encoding provided)' % value)
- value = value.decode(self.default_encoding)
- elif not self._unicode and isinstance(value, unicode):
- if not self.decode_encoding:
- raise UnicodeEncodeError(
- 'Cannot encode unicode value %r into str '
- '(no default_encoding provided)' % value)
- value = value.encode(self.default_encoding)
- return value
-
-
- def _add_line_info(self, msg, pos):
- msg = "%s at line %s column %s" % (
- msg, pos[0], pos[1])
- if self.name:
- msg += " in file %s" % self.name
- return msg
-
-def sub(content, **kw):
- name = kw.get('__name')
- tmpl = Template(content, name=name)
- return tmpl.substitute(kw)
- return result
-
-def paste_script_template_renderer(content, vars, filename=None):
- tmpl = Template(content, name=filename)
- return tmpl.substitute(vars)
-
-class bunch(dict):
-
- def __init__(self, **kw):
- for name, value in kw.items():
- setattr(self, name, value)
-
- def __setattr__(self, name, value):
- self[name] = value
-
- def __getattr__(self, name):
- try:
- return self[name]
- except KeyError:
- raise AttributeError(name)
-
- def __getitem__(self, key):
- if 'default' in self:
- try:
- return dict.__getitem__(self, key)
- except KeyError:
- return dict.__getitem__(self, 'default')
- else:
- return dict.__getitem__(self, key)
-
- def __repr__(self):
- items = [
- (k, v) for k, v in self.items()]
- items.sort()
- return '<%s %s>' % (
- self.__class__.__name__,
- ' '.join(['%s=%r' % (k, v) for k, v in items]))
-
-############################################################
-## HTML Templating
-############################################################
-
-class html(object):
- def __init__(self, value):
- self.value = value
- def __str__(self):
- return self.value
- def __repr__(self):
- return '<%s %r>' % (
- self.__class__.__name__, self.value)
-
-def html_quote(value):
- if value is None:
- return ''
- if not isinstance(value, basestring):
- if hasattr(value, '__unicode__'):
- value = unicode(value)
- else:
- value = str(value)
- value = cgi.escape(value, 1)
- if isinstance(value, unicode):
- value = value.encode('ascii', 'xmlcharrefreplace')
- return value
-
-def url(v):
- if not isinstance(v, basestring):
- if hasattr(v, '__unicode__'):
- v = unicode(v)
- else:
- v = str(v)
- if isinstance(v, unicode):
- v = v.encode('utf8')
- return urllib.quote(v)
-
-def attr(**kw):
- kw = kw.items()
- kw.sort()
- parts = []
- for name, value in kw:
- if value is None:
- continue
- if name.endswith('_'):
- name = name[:-1]
- parts.append('%s="%s"' % (html_quote(name), html_quote(value)))
- return html(' '.join(parts))
-
-class HTMLTemplate(Template):
-
- default_namespace = Template.default_namespace.copy()
- default_namespace.update(dict(
- html=html,
- attr=attr,
- url=url,
- ))
-
- def _repr(self, value, pos):
- plain = Template._repr(self, value, pos)
- if isinstance(value, html):
- return plain
- else:
- return html_quote(plain)
-
-def sub_html(content, **kw):
- name = kw.get('__name')
- tmpl = HTMLTemplate(content, name=name)
- return tmpl.substitute(kw)
- return result
-
-
-############################################################
-## Lexing and Parsing
-############################################################
-
-def lex(s, name=None, trim_whitespace=True):
- """
- Lex a string into chunks:
-
- >>> lex('hey')
- ['hey']
- >>> lex('hey {{you}}')
- ['hey ', ('you', (1, 7))]
- >>> lex('hey {{')
- Traceback (most recent call last):
- ...
- TemplateError: No }} to finish last expression at line 1 column 7
- >>> lex('hey }}')
- Traceback (most recent call last):
- ...
- TemplateError: }} outside expression at line 1 column 7
- >>> lex('hey {{ {{')
- Traceback (most recent call last):
- ...
- TemplateError: {{ inside expression at line 1 column 10
-
- """
- in_expr = False
- chunks = []
- last = 0
- last_pos = (1, 1)
- for match in token_re.finditer(s):
- expr = match.group(0)
- pos = find_position(s, match.end())
- if expr == '{{' and in_expr:
- raise TemplateError('{{ inside expression', position=pos,
- name=name)
- elif expr == '}}' and not in_expr:
- raise TemplateError('}} outside expression', position=pos,
- name=name)
- if expr == '{{':
- part = s[last:match.start()]
- if part:
- chunks.append(part)
- in_expr = True
- else:
- chunks.append((s[last:match.start()], last_pos))
- in_expr = False
- last = match.end()
- last_pos = pos
- if in_expr:
- raise TemplateError('No }} to finish last expression',
- name=name, position=last_pos)
- part = s[last:]
- if part:
- chunks.append(part)
- if trim_whitespace:
- chunks = trim_lex(chunks)
- return chunks
-
-statement_re = re.compile(r'^(?:if |elif |else |for |py:)')
-single_statements = ['endif', 'endfor', 'continue', 'break']
-trail_whitespace_re = re.compile(r'\n[\t ]*$')
-lead_whitespace_re = re.compile(r'^[\t ]*\n')
-
-def trim_lex(tokens):
- r"""
- Takes a lexed set of tokens, and removes whitespace when there is
- a directive on a line by itself:
-
- >>> tokens = lex('{{if x}}\nx\n{{endif}}\ny', trim_whitespace=False)
- >>> tokens
- [('if x', (1, 3)), '\nx\n', ('endif', (3, 3)), '\ny']
- >>> trim_lex(tokens)
- [('if x', (1, 3)), 'x\n', ('endif', (3, 3)), 'y']
- """
- for i in range(len(tokens)):
- current = tokens[i]
- if isinstance(tokens[i], basestring):
- # we don't trim this
- continue
- item = current[0]
- if not statement_re.search(item) and item not in single_statements:
- continue
- if not i:
- prev = ''
- else:
- prev = tokens[i-1]
- if i+1 >= len(tokens):
- next = ''
- else:
- next = tokens[i+1]
- if (not isinstance(next, basestring)
- or not isinstance(prev, basestring)):
- continue
- if ((not prev or trail_whitespace_re.search(prev))
- and (not next or lead_whitespace_re.search(next))):
- if prev:
- m = trail_whitespace_re.search(prev)
- # +1 to leave the leading \n on:
- prev = prev[:m.start()+1]
- tokens[i-1] = prev
- if next:
- m = lead_whitespace_re.search(next)
- next = next[m.end():]
- tokens[i+1] = next
- return tokens
-
-
-def find_position(string, index):
- """Given a string and index, return (line, column)"""
- leading = string[:index].splitlines()
- return (len(leading), len(leading[-1])+1)
-
-def parse(s, name=None):
- r"""
- Parses a string into a kind of AST
-
- >>> parse('{{x}}')
- [('expr', (1, 3), 'x')]
- >>> parse('foo')
- ['foo']
- >>> parse('{{if x}}test{{endif}}')
- [('cond', (1, 3), ('if', (1, 3), 'x', ['test']))]
- >>> parse('series->{{for x in y}}x={{x}}{{endfor}}')
- ['series->', ('for', (1, 11), ('x',), 'y', ['x=', ('expr', (1, 27), 'x')])]
- >>> parse('{{for x, y in z:}}{{continue}}{{endfor}}')
- [('for', (1, 3), ('x', 'y'), 'z', [('continue', (1, 21))])]
- >>> parse('{{py:x=1}}')
- [('py', (1, 3), 'x=1')]
- >>> parse('{{if x}}a{{elif y}}b{{else}}c{{endif}}')
- [('cond', (1, 3), ('if', (1, 3), 'x', ['a']), ('elif', (1, 12), 'y', ['b']), ('else', (1, 23), None, ['c']))]
-
- Some exceptions::
-
- >>> parse('{{continue}}')
- Traceback (most recent call last):
- ...
- TemplateError: continue outside of for loop at line 1 column 3
- >>> parse('{{if x}}foo')
- Traceback (most recent call last):
- ...
- TemplateError: No {{endif}} at line 1 column 3
- >>> parse('{{else}}')
- Traceback (most recent call last):
- ...
- TemplateError: else outside of an if block at line 1 column 3
- >>> parse('{{if x}}{{for x in y}}{{endif}}{{endfor}}')
- Traceback (most recent call last):
- ...
- TemplateError: Unexpected endif at line 1 column 25
- >>> parse('{{if}}{{endif}}')
- Traceback (most recent call last):
- ...
- TemplateError: if with no expression at line 1 column 3
- >>> parse('{{for x y}}{{endfor}}')
- Traceback (most recent call last):
- ...
- TemplateError: Bad for (no "in") in 'x y' at line 1 column 3
- >>> parse('{{py:x=1\ny=2}}')
- Traceback (most recent call last):
- ...
- TemplateError: Multi-line py blocks must start with a newline at line 1 column 3
- """
- tokens = lex(s, name=name)
- result = []
- while tokens:
- next, tokens = parse_expr(tokens, name)
- result.append(next)
- return result
-
-def parse_expr(tokens, name, context=()):
- if isinstance(tokens[0], basestring):
- return tokens[0], tokens[1:]
- expr, pos = tokens[0]
- expr = expr.strip()
- if expr.startswith('py:'):
- expr = expr[3:].lstrip(' \t')
- if expr.startswith('\n'):
- expr = expr[1:]
- else:
- if '\n' in expr:
- raise TemplateError(
- 'Multi-line py blocks must start with a newline',
- position=pos, name=name)
- return ('py', pos, expr), tokens[1:]
- elif expr in ('continue', 'break'):
- if 'for' not in context:
- raise TemplateError(
- 'continue outside of for loop',
- position=pos, name=name)
- return (expr, pos), tokens[1:]
- elif expr.startswith('if '):
- return parse_cond(tokens, name, context)
- elif (expr.startswith('elif ')
- or expr == 'else'):
- raise TemplateError(
- '%s outside of an if block' % expr.split()[0],
- position=pos, name=name)
- elif expr in ('if', 'elif', 'for'):
- raise TemplateError(
- '%s with no expression' % expr,
- position=pos, name=name)
- elif expr in ('endif', 'endfor'):
- raise TemplateError(
- 'Unexpected %s' % expr,
- position=pos, name=name)
- elif expr.startswith('for '):
- return parse_for(tokens, name, context)
- elif expr.startswith('default '):
- return parse_default(tokens, name, context)
- elif expr.startswith('#'):
- return ('comment', pos, tokens[0][0]), tokens[1:]
- return ('expr', pos, tokens[0][0]), tokens[1:]
-
-def parse_cond(tokens, name, context):
- start = tokens[0][1]
- pieces = []
- context = context + ('if',)
- while 1:
- if not tokens:
- raise TemplateError(
- 'Missing {{endif}}',
- position=start, name=name)
- if (isinstance(tokens[0], tuple)
- and tokens[0][0] == 'endif'):
- return ('cond', start) + tuple(pieces), tokens[1:]
- next, tokens = parse_one_cond(tokens, name, context)
- pieces.append(next)
-
-def parse_one_cond(tokens, name, context):
- (first, pos), tokens = tokens[0], tokens[1:]
- content = []
- if first.endswith(':'):
- first = first[:-1]
- if first.startswith('if '):
- part = ('if', pos, first[3:].lstrip(), content)
- elif first.startswith('elif '):
- part = ('elif', pos, first[5:].lstrip(), content)
- elif first == 'else':
- part = ('else', pos, None, content)
- else:
- assert 0, "Unexpected token %r at %s" % (first, pos)
- while 1:
- if not tokens:
- raise TemplateError(
- 'No {{endif}}',
- position=pos, name=name)
- if (isinstance(tokens[0], tuple)
- and (tokens[0][0] == 'endif'
- or tokens[0][0].startswith('elif ')
- or tokens[0][0] == 'else')):
- return part, tokens
- next, tokens = parse_expr(tokens, name, context)
- content.append(next)
-
-def parse_for(tokens, name, context):
- first, pos = tokens[0]
- tokens = tokens[1:]
- context = ('for',) + context
- content = []
- assert first.startswith('for ')
- if first.endswith(':'):
- first = first[:-1]
- first = first[3:].strip()
- match = in_re.search(first)
- if not match:
- raise TemplateError(
- 'Bad for (no "in") in %r' % first,
- position=pos, name=name)
- vars = first[:match.start()]
- if '(' in vars:
- raise TemplateError(
- 'You cannot have () in the variable section of a for loop (%r)'
- % vars, position=pos, name=name)
- vars = tuple([
- v.strip() for v in first[:match.start()].split(',')
- if v.strip()])
- expr = first[match.end():]
- while 1:
- if not tokens:
- raise TemplateError(
- 'No {{endfor}}',
- position=pos, name=name)
- if (isinstance(tokens[0], tuple)
- and tokens[0][0] == 'endfor'):
- return ('for', pos, vars, expr, content), tokens[1:]
- next, tokens = parse_expr(tokens, name, context)
- content.append(next)
-
-def parse_default(tokens, name, context):
- first, pos = tokens[0]
- assert first.startswith('default ')
- first = first.split(None, 1)[1]
- parts = first.split('=', 1)
- if len(parts) == 1:
- raise TemplateError(
- "Expression must be {{default var=value}}; no = found in %r" % first,
- position=pos, name=name)
- var = parts[0].strip()
- if ',' in var:
- raise TemplateError(
- "{{default x, y = ...}} is not supported",
- position=pos, name=name)
- if not var_re.search(var):
- raise TemplateError(
- "Not a valid variable name for {{default}}: %r"
- % var, position=pos, name=name)
- expr = parts[1].strip()
- return ('default', pos, var, expr), tokens[1:]
-
-_fill_command_usage = """\
-%prog [OPTIONS] TEMPLATE arg=value
-
-Use py:arg=value to set a Python value; otherwise all values are
-strings.
-"""
-
-def fill_command(args=None):
- import sys, optparse, pkg_resources, os
- if args is None:
- args = sys.argv[1:]
- dist = pkg_resources.get_distribution('Paste')
- parser = optparse.OptionParser(
- version=str(dist),
- usage=_fill_command_usage)
- parser.add_option(
- '-o', '--output',
- dest='output',
- metavar="FILENAME",
- help="File to write output to (default stdout)")
- parser.add_option(
- '--html',
- dest='use_html',
- action='store_true',
- help="Use HTML style filling (including automatic HTML quoting)")
- parser.add_option(
- '--env',
- dest='use_env',
- action='store_true',
- help="Put the environment in as top-level variables")
- options, args = parser.parse_args(args)
- if len(args) < 1:
- print 'You must give a template filename'
- print dir(parser)
- assert 0
- template_name = args[0]
- args = args[1:]
- vars = {}
- if options.use_env:
- vars.update(os.environ)
- for value in args:
- if '=' not in value:
- print 'Bad argument: %r' % value
- sys.exit(2)
- name, value = value.split('=', 1)
- if name.startswith('py:'):
- name = name[:3]
- value = eval(value)
- vars[name] = value
- if template_name == '-':
- template_content = sys.stdin.read()
- template_name = '<stdin>'
- else:
- f = open(template_name, 'rb')
- template_content = f.read()
- f.close()
- if options.use_html:
- TemplateClass = HTMLTemplate
- else:
- TemplateClass = Template
- template = TemplateClass(template_content, name=template_name)
- result = template.substitute(vars)
- if options.output:
- f = open(options.output, 'wb')
- f.write(result)
- f.close()
- else:
- sys.stdout.write(result)
-
-if __name__ == '__main__':
- from paste.util.template import fill_command
- fill_command()
-
-