B \}@sddZddlmZddlmZddlmZddlZedddd d d gZd d Z dddZ dddZ dS)zToken-related utilities) namedtuple)StringIO) iskeywordNTokentokentextstartendlineccs:yxt|D] }|VqWWntjk r4dSXdS)z(wrap generate_tokens to catch EOF errorsN)tokenizegenerate_tokens TokenError)readlinerr6lib/python3.7/site-packages/IPython/utils/tokenutil.pyr s r cCsTd}|d}x<|D]0}|t|}|ds6|d7}||kr@P|}qWd}||fS)aReturn the line in a cell at a given cursor position Used for calling line-based APIs that don't support multi-line input, yet. Parameters ---------- cell: str multiline block of text cursor_pos: integer the cursor position Returns ------- (line, offset): (string, integer) The line with the current cursor, and the character offset of the start of the line. rT ) splitlineslenendswith)cell cursor_posoffsetlinesr Z next_offsetrrrline_at_cursors    rcCsg}g}g}ddi}xtt|jD]}t|}|j\}} |j\} } | d|kr|jd} x:t| |dD](\} }| |krp|| dt ||| <qpW||}| dkr|dn|}|| |krP|j t j kr4t |js4|r&|r&|dj t jkr&|djdkr&d|d|jf|d<n ||jnh|j t jkr|jdkr^|r^|d|jdkr|r||dn|jd kr|r|d|||| | |kr&Pq&W|r|dS|r|dSd Sd S) aGet the token at a given cursor Used for introspection. Function calls are prioritized, so the token for the callable will be returned if the cursor is anywhere inside the call. Parameters ---------- cell : unicode A block of Python code cursor_pos : int The location of the cursor in the block where the token should be found rrT.z%s.%s=()rN)r rrrrr r r enumeraterrr NAMErrOPappendpop)rrnamestokensZ call_namesZoffsetstuptokZ start_lineZ start_colZend_lineZend_colrlinenor rboundaryrrrtoken_at_cursor;sH     .   r,)r)r) __doc__ collectionsriorkeywordrr rr rr,rrrrs    #