ó Nä²Wc@sqdZddlZddlmZdgZdefd„ƒYZdefd„ƒYZdefd „ƒYZdS( s 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 iÿÿÿÿN(t basestring_tloopercBs)eZdZd„Zd„Zd„ZRS(s¤ Helper for looping (particularly in templates) Use this like:: for loop, item in looper(seq): if loop.first: ... cCs ||_dS(N(tseq(tselfR((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pyt__init__&scCs t|jƒS(N(t looper_iterR(R((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pyt__iter__)scCsd|jj|jfS(Ns <%s for %r>(t __class__t__name__R(R((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pyt__repr__,s(Rt __module__t__doc__RRR (((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pyRs   RcBs;eZd„Zd„Zd„Zejdkr9eZnRS(cCst|ƒ|_d|_dS(Ni(tlistRtpos(RR((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pyR3scCs|S(N((R((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pyR7scCsY|jt|jƒkr!t‚nt|j|jƒ|j|jf}|jd7_|S(Ni(R tlenRt StopIterationtloop_pos(Rtresult((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pyt__next__:s  %t3(RR RRRtsystversiontnext(((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pyR1s    RcBs%eZd„Zd„Zd„ZeeƒZd„ZeeƒZd„ZeeƒZd„ZeeƒZe j dkr„eZ nd„Z ee ƒZ d„Z ee ƒZ d „ZeeƒZd „ZeeƒZd „ZeeƒZd „ZeeƒZdd „Zdd„Zd„ZRS(cCs||_||_dS(N(RR (RRR ((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pyRGs cCsd|j|j|jfS(Ns(RR (R((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pyR KscCs|jS(N(R (R((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pytindexOscCs |jdS(Ni(R (R((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pytnumberSscCs|j|jS(N(RR (R((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pytitemWscCs/y|j|jdSWntk r*dSXdS(Ni(RR t IndexErrortNone(R((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pyR[s RcCs%|jdkrdS|j|jdS(Nii(R RR(R((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pytpreviousescCs |jd S(Ni(R (R((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pytoddkscCs |jdS(Ni(R (R((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pytevenoscCs |jdkS(Ni(R (R((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pytfirstsscCs|jt|jƒdkS(Ni(R RR(R((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pytlastwscCs t|jƒS(N(RR(R((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pytlength{scCs&|jr tS|j|j|j|ƒS(s 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. (RtTruet_compare_groupRR(Rtgetter((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pyt first_groups cCs&|jr tS|j|j|j|ƒS(s 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. (R R"R#RR(RR$((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pyt last_groupŠs cCsÓ|dkr||kSt|tƒr˜|jdƒr˜|d}|jdƒry|d }t||ƒƒt||ƒƒkSt||ƒt||ƒkSn7t|dƒr½||ƒ||ƒkS||||kSdS(Nt.is()iþÿÿÿt__call__(Rt isinstanceRt startswithtendswithtgetattrthasattr(RRtotherR$((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pyR#•s    "N(RR RR RtpropertyRRRRRRRRRRR R!RR%R&R#(((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pyREs6                        ( R RtCython.Tempita.compat3Rt__all__tobjectRRR(((s9/bar/jli/Chip-seq/script/cython/Cython/Tempita/_looper.pyts