[#338014] Sqlite3-ruby ON Windows Vista with 1.9.1p129 mingw32 — "J. D." <jdezenzio@...>

I'm using the ming compiled 1.9.1 p 129 successfully on Vista and I even

13 messages 2009/06/01

[#338085] Games for Programmers — Daniel Berger <djberg96@...>

Hi everyone,

18 messages 2009/06/01

[#338135] nfc 1.0.0 Released — Aaron Patterson <aaron@...>

nfc version 1.0.0 has been released!

16 messages 2009/06/02

[#338141] <, >, and ranges in a case statement. — Max Williams <toastkid.williams@...>

I feel like this should be simple but i can't figure it out.

16 messages 2009/06/02

[#338307] Compiling Ruby 1.9.1 zlib issue on Windows — "J. D." <jdezenzio@...>

Hi everyone,

14 messages 2009/06/03

[#338344] Ruby OS — Sparky Mat <max@...>

I was considering porting the Ruby 1.9 VM to bare metal (something

16 messages 2009/06/04

[#338466] ruby_frame in 1.8 is what in 1.9? — Jason Roelofs <jameskilton@...>

So I have some C++ extension code that nicely uses ruby_frame->orig_func and

11 messages 2009/06/05

[#338469] Problem with cronjob and ruby script — Matthew Lagace <mlagace@...>

Hello,

20 messages 2009/06/05
[#338476] Re: Problem with cronjob and ruby script — Bil Kleb <Bil.Kleb@...> 2009/06/05

Matthew Lagace wrote:

[#338478] Re: Problem with cronjob and ruby script — Matthew Lagace <mlagace@...> 2009/06/05

Hmm I've tried running with a blank environment and it fails with the

[#338481] Re: Problem with cronjob and ruby script — Hassan Schroeder <hassan.schroeder@...> 2009/06/05

On Fri, Jun 5, 2009 at 8:00 AM, Matthew Lagace<mlagace@rasib.ca> wrote:

[#338483] Re: Problem with cronjob and ruby script — Matthew Lagace <mlagace@...> 2009/06/05

Oh I see can you give me an example please?

[#338516] Twitter Personalities (#208) — Daniel Moore <yahivin@...>

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23 messages 2009/06/05

[#338519] SPAM from Usenet — Eric Hodel <drbrain@...7.net>

It seems the gateway is passing a lot more spam these days.

71 messages 2009/06/05
[#338522] Re: SPAM from Usenet — James Gray <james@...> 2009/06/05

On Jun 5, 2009, at 4:30 PM, Eric Hodel wrote:

[#338524] Re: SPAM from Usenet — Eric Hodel <drbrain@...7.net> 2009/06/05

On Jun 5, 2009, at 14:42, James Gray wrote:

[#338686] How to sort array ascending, except zero ? — Paganoni <noway@...>

Hello, I need to sort

24 messages 2009/06/08

[#338769] Ruby 1.9.x Concurrency — "s.ross" <cwdinfo@...>

Poking through the Apple press releases today, I sat up and took

20 messages 2009/06/09
[#338808] Re: Ruby 1.9.x Concurrency — James Gray <james@...> 2009/06/09

On Jun 9, 2009, at 1:23 AM, s.ross wrote:

[#338825] Re: Ruby 1.9.x Concurrency — Charles Oliver Nutter <headius@...> 2009/06/09

On Tue, Jun 9, 2009 at 9:16 AM, James Gray<james@grayproductions.net> wrote=

[#338835] Re: Ruby 1.9.x Concurrency — Tony Arcieri <tony@...> 2009/06/09

On Tue, Jun 9, 2009 at 10:06 AM, Charles Oliver Nutter

[#338776] require_all 1.0.0: A wonderfully simple way to load your code — Tony Arcieri <tony@...>

require_all

12 messages 2009/06/09

[#338875] centos and ruby 1.9.1 - possible? — "Älphä Blüë" <jdezenzio@...>

I hate even typing the question but my vps template has centos

20 messages 2009/06/10
[#338886] Re: centos and ruby 1.9.1 - possible? — James Britt <james.britt@...> 2009/06/10

底phBl鵫 wrote:

[#338918] Re: centos and ruby 1.9.1 - possible? — "Älphä Blüë" <jdezenzio@...> 2009/06/10

James Britt wrote:

[#338890] Ruby 1.8.6-pl369 released — Kirk Haines <wyhaines@...>

We have released Ruby 1.8.6-pl369. This is primarily a security release.

12 messages 2009/06/10
[#338935] Re: [Security] Ruby 1.8.6-pl369 released — Charles Oliver Nutter <headius@...> 2009/06/10

On Wed, Jun 10, 2009 at 12:14 AM, Kirk Haines<wyhaines@gmail.com> wrote:

[#338894] Any plans for a Ruby 1.9.1 One-Click Installer? — Benjamin L. Russell <DekuDekuplex@...>

Are there any plans for a Ruby 1.9.1 One-Click Installer for Windows?

18 messages 2009/06/10

[#339014] publically accessible fastri — Roger Pack <rogerpack2005@...>

I have been thinking recently that I wish I could access ri data for

14 messages 2009/06/11

[#339033] Idiomatic way to detect first/last iteration? — Kendall Gifford <zettabyte@...>

Hi there, is there any recognized ruby idiomatic way for detecting

20 messages 2009/06/11

[#339099] wrapping a C struct[] constant — Martin DeMello <martindemello@...>

I have some C code with a struct definition

15 messages 2009/06/12
[#339106] Re: wrapping a C struct[] constant — Eero Saynatkari <ruby-ml@...> 2009/06/12

Martin DeMello wrote:

[#339119] Re: wrapping a C struct[] constant — Jason Roelofs <jameskilton@...> 2009/06/12

On Fri, Jun 12, 2009 at 7:42 AM, Eero Saynatkari <ruby-ml@kittensoft.org>wrote:

[#339123] Re: wrapping a C struct[] constant — Martin DeMello <martindemello@...> 2009/06/12

On Fri, Jun 12, 2009 at 7:01 PM, Jason Roelofs<jameskilton@gmail.com> wrote:

[#339146] Matrix Rotator (#209) — Daniel Moore <yahivin@...>

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17 messages 2009/06/12

[#339260] each by arity — Trans <transfire@...>

I've always wondered, why?

20 messages 2009/06/14
[#339262] Re: each by arity — Joel VanderWerf <vjoel@...> 2009/06/14

Trans wrote:

[#339264] Re: each by arity — Tony Arcieri <tony@...> 2009/06/14

On Sun, Jun 14, 2009 at 1:37 PM, Joel VanderWerf <vjoel@path.berkeley.edu>wrote:

[#339265] Re: each by arity — Yossef Mendelssohn <ymendel@...> 2009/06/14

On Jun 14, 3:32=A0pm, Tony Arcieri <t...@medioh.com> wrote:

[#339304] formatting a listing — George George <george.githinji@...>

i have a listing which looks like this

21 messages 2009/06/15

[#339395] Ruby feasibility? — Dave Kubasiak <davekub@...>

Good morning,

14 messages 2009/06/16

[#339404] shebang! on Leopard — "Paul M." <paul.maxfield007@...>

Hey everyone,

14 messages 2009/06/16

[#339513] String += vs << — Joshua Ball <chezball@...>

A friend recently sent me this article:

12 messages 2009/06/17

[#339546] enterprise 1.0.0 Released — Aaron Patterson <aaron@...>

enterprise version 1.0.0 has been released!

12 messages 2009/06/18

[#339680] Capturing System Call Return Values? — Tyler Knappe <tyler.knappe@...>

I'm attempting to use Ruby to make system calls (in this case python

18 messages 2009/06/19
[#339683] Re: Capturing System Call Return Values? — Roger Pack <rogerpack2005@...> 2009/06/19

Tyler Knappe wrote:

[#339734] 'move into' a module's namespace in irb — Max Williams <toastkid.williams@...>

I'm in an irb session where i have a lot of modules loaded. All of the

13 messages 2009/06/20

[#339757] regular expression gurus--help! — timr <timrandg@...>

I want all possible three letter sets for a string. Scan does this:

18 messages 2009/06/21

[#339776] if column header contain regexp, delete column — Paul Shapiro <fightoplankton@...>

I need to see if a csv column header matches a pattern (see columns 2/3

10 messages 2009/06/21

[#339809] ruby suggestion: officially sanctioned tutorials/howto's — Roger Pack <rogerpack2005@...>

Current situation:

24 messages 2009/06/22
[#339811] Re: ruby suggestion: officially sanctioned tutorials/howto's — James Gray <james@...> 2009/06/22

On Jun 22, 2009, at 7:10 AM, Roger Pack wrote:

[#339824] Re: ruby suggestion: officially sanctioned tutorials/howto's — Joel VanderWerf <vjoel@...> 2009/06/22

James Gray wrote:

[#339854] Re: ruby suggestion: officially sanctioned tutorials/howto's — Robert Dober <robert.dober@...> 2009/06/22

On Mon, Jun 22, 2009 at 6:50 PM, Joel VanderWerf<vjoel@path.berkeley.edu> w=

[#339941] Re: ruby suggestion: officially sanctioned tutorials/howto's — Robert Klemme <shortcutter@...> 2009/06/23

On 23.06.2009 01:20, Robert Dober wrote:

[#339944] Re: ruby suggestion: officially sanctioned tutorials/howto's — Robert Dober <robert.dober@...> 2009/06/23

On Tue, Jun 23, 2009 at 11:30 PM, Robert

[#339946] Re: ruby suggestion: officially sanctioned tutorials/howto's — Roger Pack <rogerpack2005@...> 2009/06/23

>> Having said that it is probably a good idea to include tutorials in the

[#340001] Re: ruby suggestion: officially sanctioned tutorials/howto's — Robert Klemme <shortcutter@...> 2009/06/24

On 24.06.2009 00:00, Roger Pack wrote:

[#339834] map shall not return an Enumerator ( was re guru help ) — Robert Dober <robert.dober@...>

On Mon, Jun 22, 2009 at 2:52 PM, Brian Candler<b.candler@pobox.com> wrote:

10 messages 2009/06/22

[#339871] Execute Ruby script over HTTP protocol as Java Script — Speed Knownas <karthick1983@...>

Hi All,

13 messages 2009/06/23

[#339982] THREE HUNDRED! — Ryan Davis <ryand-ruby@...>

I just finished my release flood and we cracked release #300!

46 messages 2009/06/24
[#339983] Re: THREE HUNDRED! — Xeno Campanoli <xeno.campanoli@...> 2009/06/24

Ryan Davis wrote:

[#339985] Re: THREE HUNDRED! — Ryan Davis <ryand-ruby@...> 2009/06/24

[#339988] Re: THREE HUNDRED! — John Barnette <jbarnette@...> 2009/06/24

On Tue, Jun 23, 2009 at 8:29 PM, Ryan Davis<ryand-ruby@zenspider.com> wrote=

[#339994] Re: THREE HUNDRED! — lith <minilith@...> 2009/06/24

> I fear change. Could you please stop improving your software and just

[#340022] Time for a ruby-announce list? — Trans <transfire@...>

We are seeing a lot or release announcements among the regular posts

45 messages 2009/06/24
[#340088] Re: Time for a ruby-announce list? — Roger Pack <rogerpack2005@...> 2009/06/24

> We are seeing a lot or release announcements among the regular posts

[#340090] How do I get an integer from an array? — Peter Bailey <pbailey@...>

Hi,

14 messages 2009/06/24

[#340171] Attr Methods and object setters — Marc Heiler <shevegen@...>

We can do:

28 messages 2009/06/25
[#340193] Re: Attr Methods and object setters — Gregory Brown <gregory.t.brown@...> 2009/06/25

On Thu, Jun 25, 2009 at 2:05 PM, Marc Heiler<shevegen@linuxmail.org> wrote:

[#340216] Re: Attr Methods and object setters — Fabian Streitel <karottenreibe@...> 2009/06/26

> This is the pattern I use:

[#340264] Re: Attr Methods and object setters — Gregory Brown <gregory.t.brown@...> 2009/06/26

On Fri, Jun 26, 2009 at 4:00 AM, Fabian

[#340299] Re: Attr Methods and object setters — Fabian Streitel <karottenreibe@...> 2009/06/27

See here: http://pastie.org/526403

[#340301] Re: Attr Methods and object setters — Gregory Brown <gregory.t.brown@...> 2009/06/27

On Sat, Jun 27, 2009 at 10:42 AM, Fabian

[#340335] Re: Attr Methods and object setters — Daniel DeLorme <dan-ml@...42.com> 2009/06/28

Gregory Brown wrote:

[#340239] Trying to define a 'class' without using 'class' sentence — Fernando Guillen <fguillen.mail@...>

Hi people.. I was watching the Dave Thomas' talk on the ScotlandOnRails

18 messages 2009/06/26

[#340385] RDoc-style documentation for Ruby keywords — "David A. Black" <dblack@...>

Hi --

20 messages 2009/06/29

[#340409] Best OS packages for Ruby? — "Michael J. I. Jackson" <mjijackson@...>

Hi all,

23 messages 2009/06/29
[#340427] Re: Best OS packages for Ruby? — Fabian Streitel <karottenreibe@...> 2009/06/29

Hi Michael,

[#340484] Re: Best OS packages for Ruby? — David Masover <ninja@...> 2009/06/30

On Monday 29 June 2009 12:11:38 pm Fabian Streitel wrote:

[#340515] Re: Best OS packages for Ruby? — Joel VanderWerf <vjoel@...> 2009/06/30

David Masover wrote:

[#340518] Re: Best OS packages for Ruby? — James Britt <james.britt@...> 2009/06/30

Joel VanderWerf wrote:

[#340588] Re: Best OS packages for Ruby? — Fabian Streitel <karottenreibe@...> 2009/07/01

>

[#340410] Making a random string — Lloyd Linklater <lloyd@2live4.com>

I have been trying to generate a random string. One approach in, say,

21 messages 2009/06/29
[#340492] Re: Making a random string — Brian Candler <b.candler@...> 2009/06/30

Lloyd Linklater wrote:

[#340432] attr_writers within blocks — Wijnand Wiersma <wijnand@...>

Hi all,

14 messages 2009/06/29

[#340460] Question on networking with custom binary interface. — Greg Chambers <gregory.w.chambers@...>

So I am working on this Ruby server application for Windows that needs

13 messages 2009/06/29

Re: Need Advice Help On Parsing A File

From: Robert Klemme <shortcutter@...>
Date: 2009-06-28 08:05:51 UTC
List: ruby-talk #340343
On 28.06.2009 02:26, Mrmaster Mrmaster wrote:
> I'm creating an application that will parse mbox files, extract the
> data, and put it into a db. I have a couple of problems. For those of
> you who are not familiar with mbox files, just think of one text file
> that stores all of the emails in text format.
> 
> 1) mbox files keep updating so how do notify my script that new data has
> come in? Do I rerun the script with a placeholder where it last
> finished? That would require me to rescan the whole mbox file to find
> the placeholder which is pretty bad design.

It would probably be more efficient to just store the file position (see 
IO#tell and IO#seek).  However, that does not work if the mbox file is 
not just appended to but also removed from.  And the file position 
approach also does not solve the problem of concurrent modifications.

I assume for mbox files there is an established protocol how the file 
locking works.  You'll probably find it somewhere on the web or someone 
more knowledgeable than me posts information here.

> 2) What is the most efficient way to read the emails into memory before
> putting it into a db? Since there are multiple emails in each mbox file
> will I just read one of the emails, store it into memory, dumb it into
> db, then replace the current email in memory with the new one?

Yes, processing one email at a time seems the most efficient approach, 
especially since there is no information about other mails that you need 
  to store a single email.

> ps. I realize there are scripts that already do this. I'm creating this
> for my own learning experience.

Have fun!

Kind regards

	robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/

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