| Subject: Re: What language would you use? |
| From: Tom Christiansen <tchrist@mox.perl.com> |
| Date: 6 Nov 1994 15:14:51 GMT |
| Newsgroups: comp.lang.python,comp.lang.tcl,comp.lang.scheme,comp.lang.misc,comp.lang.perl |
| Message-Id: <39irtb$3t4@csnews.cs.Colorado.EDU> |
| References: <39b7ha$j9v@zeno.nscf.org> <39hhjp$lgn@csnews.cs.Colorado.EDU> <39hvsu$dus@mathserv.mps.ohio-state.edu> |
| |
| [...] |
| If you're really into benchmarks, I'd love it if someone were to code up |
| the following problems in tcl, python, and scheme (and whatever else you'd |
| like). Separate versions (one optimized for speed, one for beauty :-) are |
| ok. Post your code so we can time it on our own systems. |
| |
| 0) Factorial Test (numerics and function calls) |
| |
| (we did this already) |
| |
| 1) Regular Expressions Test |
| |
| Read a file of (extended per egrep) regular expressions (one per line), |
| and apply those to all files whose names are listed on the command line. |
| Basically, an 'egrep -f' simulator. Test it with 20 "vt100" patterns |
| against a five /etc/termcap files. Tests using more elaborate patters |
| would also be interesting. Your code should not break if given hundreds |
| of regular expressions or binary files to scan. |
| |
| 2) Sorting Test |
| |
| Sort an input file that consists of lines like this |
| |
| var1=23 other=14 ditto=23 fred=2 |
| |
| such that each output line is sorted WRT to the number. Order |
| of output lines does not change. Resolve collisions using the |
| variable name. e.g. |
| |
| fred=2 other=14 ditto=23 var1=23 |
| |
| Lines may be up to several kilobytes in length and contain |
| zillions of variables. |
| |
| 3) System Test |
| |
| Given a list of directories, report any bogus symbolic links contained |
| anywhere in those subtrees. A bogus symbolic link is one that cannot |
| be resolved because it points to a nonexistent or otherwise |
| unresolvable file. Do *not* use an external find executable. |
| Directories may be very very deep. Print a warning immediately if the |
| system you're running on doesn't support symbolic links. |
| |
| |
| I'll post perl solutions if people post the others. |
| |
| |
| --tom |
| -- |
| Tom Christiansen Perl Consultant, Gamer, Hiker tchrist@mox.perl.com |
| |
| "But Billy! A *small* allowance prepares you for a lifetime of small |
| salaries and for your Social Security payments." --Family Circus |
