Ñò ÎÑAHc@sòdZdZddkZddkZdefd„ƒYZdd„Zei dƒZ ei dƒZ d „Z d „Z d „Zd „Zd „Zd„Zd„Zd„Zd„Zd„Zd„Zei dƒZei dƒZd„ZdS(sõ Classes and functions for prefiltering (transforming) a line of user input. This module is responsible, primarily, for breaking the line up into useful pieces and triggering the appropriate handlers in iplib to do the actual transforming work. srestructuredtext eniÿÿÿÿNtLineInfocBs)eZdZd„Zd„Zd„ZRS(sA single line of input and associated info. Includes the following as properties: line The original, raw line continue_prompt Is this line a continuation in a sequence of multiline input? pre The initial esc character or whitespace. preChar The escape character(s) in pre or the empty string if there isn't one. Note that '!!' is a possible value for preChar. Otherwise it will always be a single character. preWhitespace The leading whitespace from pre if it exists. If there is a preChar, this is just ''. iFun The 'function part', which is basically the maximal initial sequence of valid python identifiers and the '.' character. This is what is checked for alias and magic transformations, used for auto-calling, etc. theRest Everything else on the line. cCsr||_||_t|ƒ\|_|_|_|iiƒ|_|io d|_n |i|_d|_ dS(Nt( tlinetcontinue_prompttsplitUserInputtpretiFunttheResttstriptpreChart preWhitespacetNonet_oinfo(tselfRR((sI/u/d/b/dbachman/web/work/lib/python2.3/site-packages/IPython/prefilter.pyt__init__-s     cCs*|ip|i|iƒ|_n|iS(s Do a full, attribute-walking lookup of the iFun in the various namespaces for the given IPython InteractiveShell instance. Return a dict with keys: found,obj,ospace,ismagic Note: can cause state changes because of calling getattr, but should only be run if autocall is on and if the line hasn't matched any other, less dangerous handlers. Does cache the results of the call, so can be called multiple times without worrying about *further* damaging state. (R t_ofindR(R tip((sI/u/d/b/dbachman/web/work/lib/python2.3/site-packages/IPython/prefilter.pytofind:s cCsd|i|i|ifS(NsLineinfo [%s|%s|%s](RRR(R ((sI/u/d/b/dbachman/web/work/lib/python2.3/site-packages/IPython/prefilter.pyt__str__Js(t__name__t __module__t__doc__RRR(((sI/u/d/b/dbachman/web/work/lib/python2.3/site-packages/IPython/prefilter.pyR s c Csñ|p t}n|i|ƒ}|p_y|iddƒ\}}Wn tj o|d}}nXtid|ƒiƒd}n|iƒ\}}}y|idƒ}Wn'tj o|d|}d}nX||i ƒ|i ƒfS( s¸Split user input into pre-char/whitespace, function part and rest. Mostly internal to this module, but also used by iplib.expand_aliases, which passes in a shell pattern. iRs ^(\s*)(.*)itasciiu uN( t line_splittmatchtsplitR t ValueErrortretgroupstencodetUnicodeEncodeErrorRtlstrip(RtpatternRRRR((sI/u/d/b/dbachman/web/work/lib/python2.3/site-packages/IPython/prefilter.pyRMs    s(^([,;/%?]|!!?|\s*)\s*([\w\.]+)(\s+.*$|$)s^(\s*)(\S*\s*)(.*$)c Cs]xMtttttttttt g D]'}|||ƒ}|o ||ƒSq%W|i |ƒS(sµCall one of the passed-in InteractiveShell's handler preprocessors, depending on the form of the line. Return the results, which must be a value, even if it's a blank ('').( t checkEmacstcheckShellEscapetcheckIPyAutocalltcheckMultiLineMagict checkEscCharstcheckAssignmenttcheckAutomagict checkAliastcheckPythonOpst checkAutocallt handle_normal(t line_infoRtcheckthandler((sI/u/d/b/dbachman/web/work/lib/python2.3/site-packages/IPython/prefilter.pyt prefilter…scCs(|iiƒi|iƒo|iSdS(N(RRt startswitht ESC_SHELLthandle_shell_escape(tl_infoR((sI/u/d/b/dbachman/web/work/lib/python2.3/site-packages/IPython/prefilter.pyR"§scCs#|iidƒo|iSdSdS(s,Emacs ipython-mode tags certain input lines.s # PYTHON-MODEN(Rtendswitht handle_emacsR (R3R((sI/u/d/b/dbachman/web/work/lib/python2.3/site-packages/IPython/prefilter.pyR!«scCsN|ii|idƒ}t|tiiƒo|i|i ƒ|i SdSdS(s>Instances of IPyAutocall in user_ns get autocalled immediatelyN( tuser_nstgetRR t isinstancetIPythontipapit IPyAutocalltset_iptapit handle_auto(R3Rtobj((sI/u/d/b/dbachman/web/work/lib/python2.3/site-packages/IPython/prefilter.pyR#²s cCsA|io/|iio"|ii|iƒo|iSndSdS(sDAllow ! and !! in multi-line statements if multi_line_specials is onN(Rtrctmulti_line_specialsRR0t ESC_MAGICt handle_magicR (R3R((sI/u/d/b/dbachman/web/work/lib/python2.3/site-packages/IPython/prefilter.pyR$¼s    cCso|id|ijo.|i|ijo|i|ijo|iS|i|ijo|i|iSdSdS(slCheck for escape character and return either a handler to handle it, or None if there is no escape char.iÿÿÿÿN(RtESC_HELPR R1t ESC_SH_CAPt handle_helpt esc_handlersR (R3R((sI/u/d/b/dbachman/web/work/lib/python2.3/site-packages/IPython/prefilter.pyR%ÈscCs.|io|iddjo|iSdSdS(sPCheck to see if user is assigning to a var for the first time, in which case we want to avoid any sort of automagic / autocall games. This allows users to assign to either alias or magic names true python variables (the magic/alias systems always take second seat to true python code). E.g. ls='hi', or ls,that=1,2is=,N(RR+R (R3R((sI/u/d/b/dbachman/web/work/lib/python2.3/site-packages/IPython/prefilter.pyR&×scCs}|ii pt|d|iƒ odS|io|ii odS|iiddƒd}t||ƒodS|i S(s7If the iFun is magic, and automagic is on, run it. Note: normal, non-auto magic would already have been triggered via '%' in check_esc_chars. This just checks for automagic. Also, before triggering the magic handler, make sure that there is nothing in the user namespace which could shadow it.tmagic_t.iiN( R@t automagicthasattrRR RRARt isShadowedRC(R3Rthead((sI/u/d/b/dbachman/web/work/lib/python2.3/site-packages/IPython/prefilter.pyR'äs&cCsX|iiddƒd}|i|ijp ||ijpt||ƒodS|iS(s9Check if the initital identifier on the line is an alias.RIiiN(RRt alias_tableRLR t handle_alias(R3RRM((sI/u/d/b/dbachman/web/work/lib/python2.3/site-packages/IPython/prefilter.pyR(øs cCs.|io|iddjo|iSdSdS(s If the 'rest' of the line begins with a function call or pretty much any python operator, we should simply execute the line (regardless of whether or not there's a possible autocall expansion). This avoids spurious (and very confusing) geattr() accesses.is!=()<>,+*/%^&|N(RR+R (R3R((sI/u/d/b/dbachman/web/work/lib/python2.3/site-packages/IPython/prefilter.pyR)scCsy|iipdS|i|ƒ}|dpdSt|dƒo/ti|iƒ oti|i ƒo|i SdSdS(sBCheck if the initial word/function is callable and autocall is on.tfoundR?N( R@tautocallR Rtcallabletre_exclude_autoRRt re_fun_nameRR>(R3Rtoinfo((sI/u/d/b/dbachman/web/work/lib/python2.3/site-packages/IPython/prefilter.pyR*s  s[a-zA-Z_]([a-zA-Z0-9_.]*) *$s)^[,&^\|\*/\+-]|^is |^not |^in |^and |^or cCs1||ijp!||ijp||idjS(sÊIs the given identifier defined in one of the namespaces which shadow the alias and magic namespaces? Note that an identifier is different than iFun, because it can not contain a '.' character.tbuiltin(R6t internal_nstns_table(t identifierR((sI/u/d/b/dbachman/web/work/lib/python2.3/site-packages/IPython/prefilter.pyRL8s(Rt __docformat__Rt IPython.ipapiR9tobjectRR RtcompileRtshell_line_splitR/R"R!R#R$R%R&R'R(R)R*RTRSRL(((sI/u/d/b/dbachman/web/work/lib/python2.3/site-packages/IPython/prefilter.pyts*  @ 2 "