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Added support for @first and @last in each. #6

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merged 1 commit into from
Aug 15, 2014
Merged

Added support for @first and @last in each. #6

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17 changes: 15 additions & 2 deletions pybars/_compiler.py
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Original file line number Diff line number Diff line change
Expand Up @@ -178,11 +178,13 @@ def escape(something, _escape_re=_escape_re, substitute=substitute):

class Scope:

def __init__(self, context, parent, index=None, key=None):
def __init__(self, context, parent, index=None, key=None, first=None, last=None):
self.context = context
self.parent = parent
self.index = index
self.key = key
self.first = first
self.last = last

def get(self, name, default=None):
if name == '__parent':
Expand All @@ -191,6 +193,10 @@ def get(self, name, default=None):
return self.index
if name == '@key' and self.key is not None:
return self.key
if name == '@first' and self.first is not None:
return self.first
if name == '@last' and self.last is not None:
return self.last
if name == 'this':
return self.context
result = self.context.get(name, self)
Expand Down Expand Up @@ -225,12 +231,19 @@ def resolve(context, *segments):
def _each(this, options, context):
result = strlist()
i = 0
if isinstance(context, list) or isinstance(context, dict):
context_length = len(context)
else:
context_length = None
for local_context in context:
kwargs = {}
if isinstance(context, list):
kwargs['index'] = i
if isinstance(context, dict):
elif isinstance(context, dict):
kwargs['key'] = local_context
kwargs['first'] = (i==0)
if context_length is not None:
kwargs['last'] = (i==(context_length-1))
scope = Scope(local_context, this, **kwargs)
result.grow(options['fn'](scope))
i += 1
Expand Down