Re: [Pyparsing] Parsing large files using SkipTo is slow.

[Paul M. <pt...@au...>]

Max -

The FTP link you posted does not respond for me.  Can you try posting code
and any ASCII files at pastebin.com?

-- Paul


-----Original Message-----
From: Max...@dl... [mailto:Max...@dl...] 
Sent: Monday, September 12, 2011 6:06 AM
To: pyp...@li...
Subject: [Pyparsing] Parsing large files using SkipTo is slow.

Hello,

 I am trying to parse a simple CAD file using pyparsing, where the
 grammar is quite simple and most of the lines of the file are supposed
 to be skipped. However this is still slower than I would expect it to
 be.

 The parser is in the parse_iv.py file,  the CAD file is the
 screwdriver_2.iv and the CProfile result is th err file.

 It seems like parseString is called for each line. I don't understand
 the internal workings of pyparsing but would it be possible to use
 something like file.index( skiptostr ) to speed things up?

ftp://ftp.robotic.dlr.de/outgoing/Argus/


 BR, Max


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