B ž†\Hã@sRdZddlZddlmZdgZGdd„deƒZGdd„deƒZGdd „d eƒZdS) a 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 éN)Ú basestring_Úlooperc@s(eZdZdZdd„Zdd„Zdd„ZdS) rz¤ Helper for looping (particularly in templates) Use this like:: for loop, item in looper(seq): if loop.first: ... cCs ||_dS)N)Úseq)Úselfr©rú5lib/python3.7/site-packages/Cython/Tempita/_looper.pyÚ__init__&szlooper.__init__cCs t|jƒS)N)Ú looper_iterr)rrrrÚ__iter__)szlooper.__iter__cCsd|jj|jfS)Nz <%s for %r>)Ú __class__Ú__name__r)rrrrÚ__repr__,szlooper.__repr__N)r Ú __module__Ú __qualname__Ú__doc__rr r rrrrrs c@s2eZdZdd„Zdd„Zdd„Zejdkr.eZdS) r cCst|ƒ|_d|_dS)Nr)ÚlistrÚpos)rrrrrr3s zlooper_iter.__init__cCs|S)Nr)rrrrr 7szlooper_iter.__iter__cCs@|jt|jƒkrt‚t|j|jƒ|j|jf}|jd7_|S)Né)rÚlenrÚ StopIterationÚloop_pos)rÚresultrrrÚ__next__:s zlooper_iter.__next__Ú3N) r rrrr rÚsysÚversionÚnextrrrrr 1s  r c@sæeZdZdd„Zdd„Zdd„ZeeƒZdd„ZeeƒZd d „ZeeƒZd d „Z ee ƒZ e j d krfe Z dd„Z ee ƒZ dd„ZeeƒZdd„ZeeƒZdd„ZeeƒZdd„ZeeƒZdd„ZeeƒZd!dd„Zd"dd„Zdd „ZdS)#rcCs||_||_dS)N)rr)rrrrrrrGszloop_pos.__init__cCsd|j|j|jfS)Nz)rr)rrrrr Kszloop_pos.__repr__cCs|jS)N)r)rrrrÚindexOszloop_pos.indexcCs |jdS)Nr)r)rrrrÚnumberSszloop_pos.numbercCs |j|jS)N)rr)rrrrÚitemWsz loop_pos.itemcCs*y|j|jdStk r$dSXdS)Nr)rrÚ IndexError)rrrrr[szloop_pos.__next__rcCs|jdkrdS|j|jdS)Nrr)rr)rrrrÚpreviouses zloop_pos.previouscCs |jd S)Né)r)rrrrÚoddksz loop_pos.oddcCs |jdS)Nr")r)rrrrÚevenosz loop_pos.evencCs |jdkS)Nr)r)rrrrÚfirstsszloop_pos.firstcCs|jt|jƒdkS)Nr)rrr)rrrrÚlastwsz loop_pos.lastcCs t|jƒS)N)rr)rrrrÚlength{szloop_pos.lengthNcCs|jr dS| |j|j|¡S)a Returns true if this item is the start of a new group, where groups mean that some attribute has changed. The getter can be None (the item itself changes), an attribute name like ``'.attr'``, a function, or a dict key or list index. T)r%Ú_compare_grouprr!)rÚgetterrrrÚ first_groupszloop_pos.first_groupcCs|jr dS| |j|j|¡S)a Returns true if this item is the end of a new group, where groups mean that some attribute has changed. The getter can be None (the item itself changes), an attribute name like ``'.attr'``, a function, or a dict key or list index. T)r&r(rr)rr)rrrÚ last_groupŠszloop_pos.last_groupcCs¢|dkr||kSt|tƒrt| d¡rt|dd…}| d¡r^|dd…}t||ƒƒt||ƒƒkSt||ƒt||ƒkSn*t|dƒrŽ||ƒ||ƒkS||||kSdS)NÚ.rz()éþÿÿÿÚ__call__)Ú isinstancerÚ startswithÚendswithÚgetattrÚhasattr)rrÚotherr)rrrr(•s      zloop_pos._compare_group)N)N)r rrrr rÚpropertyrrrrrrr!r#r$r%r&r'r*r+r(rrrrrEs6  r) rrZCython.Tempita.compat3rÚ__all__Úobjectrr rrrrrÚs