[Chicken-janitors] [Chicken-bugs] #365: segfault caused by unit regex

[Chicken Scheme]

#365: segfault caused by unit regex
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 Reporter:  Jon Strait <address@hidden>  |       Type:  defect
   Status:  new                                |   Priority:  major 
Component:  core libraries                     |    Version:  2.7   
 Keywords:                                     |  
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 The following code nearly immediately causes a segfault if the included
 text file is read in:


 {{{
 (use regex utils)

 (define infile (read-all "spcre.txt"))
 (define mat (string-match-positions
              (regexp "(?m)^(\\S(\\S|\\s)+\\S)\\s+$")
              infile))
 }}}
 The text file read in is just long enough (88 lines) to cause a segfault.
 Three or 4 lines less in the text file input and the code runs to
 completion.  This regex pattern ended up too greedy for my intention
 (matching the entire text on shorter text passages) and my adjustments to
 make it non-greedy worked fine. (no crash on a much larger file) So it may
 be an impractical pattern as it reads here.

 Tested with Chicken 2.727

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Ticket URL: <http://trac.callcc.org/ticket/365>
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