[#399938] how to read arrary with an array — "Richard D." <lists@...>

Hello. I believe this is basic question, but I'm just starting to learn

19 messages 2012/10/02

[#400050] img src while sending email ruby cgi — Ferdous ara <lists@...>

Hi

16 messages 2012/10/05

[#400351] Drop 1st and last particular character — ajay paswan <lists@...>

What is the most efficient way to drop '#' from the first place and last

15 messages 2012/10/16

[#400374] database part of a desktop application — "Sebastjan H." <lists@...>

Hi,

14 messages 2012/10/16
[#400375] Re: database part of a desktop application — Chad Perrin <code@...> 2012/10/16

On Wed, Oct 17, 2012 at 05:28:39AM +0900, Sebastjan H. wrote:

[#400377] Re: database part of a desktop application — sto.mar@... 2012/10/17

Am 16.10.2012 23:24, schrieb Chad Perrin:

[#400389] Re: database part of a desktop application — Chad Perrin <code@...> 2012/10/17

On Wed, Oct 17, 2012 at 01:39:21PM +0900, sto.mar@web.de wrote:

[#400386] Unable to send attachment, and dealing with multiple attachment — ajay paswan <lists@...>

Hi,

11 messages 2012/10/17

[#400454] Hash with Integer key issue — Wayne Simmerson <lists@...>

Hi Im new to Ruby and am getting some unexpected results from a

18 messages 2012/10/19

[#400535] Name/symbol/object type clash? What is happening here? — Todd Benson <caduceass@...>

It's nonsense code, but I'm curious as to what is going on behind the scenes...

41 messages 2012/10/23

[#400556] Calling a method foo() or an object foo.method_call_here - both — Marc Heiler <lists@...>

Hello.

13 messages 2012/10/24

[#400650] OpenSSL ECDSA public key from private — Nokan Emiro <uzleepito@...>

Hi,

11 messages 2012/10/27

[#400680] Passing folder as argument ARGV? — Joz Private <lists@...>

Is there an easy way to pass multiple files on the command line?

15 messages 2012/10/28
[#400681] Re: Passing folder as argument ARGV? — brad smith <bradleydsmith@...> 2012/10/28

How are you traversing the directory you pass in on the command line ?

[#400697] File.readable? and /proc — Jeff Moore <lists@...>

root@nail:/projects/proc_fs# uname -a

13 messages 2012/10/28

[#400714] Marshal.load weird issue — "Pierre J." <lists@...>

Hi guys

12 messages 2012/10/28

[#400781] bug?: local variable created in if modifier not available in modified expression — "Mean L." <lists@...>

irb(main):001:0> local1 if local1 = "created"

21 messages 2012/10/30
[#400807] Re: bug?: local variable created in if modifier not available in modified expression — Bartosz Dziewoński <matma.rex@...> 2012/10/31

Oh, and in case it wasn't apparent: you can just add

[#400808] Re: bug?: local variable created in if modifier not available in modified expression — Eliezer Croitoru <eliezer@...> 2012/10/31

On 10/31/2012 4:52 PM, Bartosz Dziewoナгki wrote:

[#400809] Re: bug?: local variable created in if modifier not available in modified expression — Robert Klemme <shortcutter@...> 2012/10/31

On Wed, Oct 31, 2012 at 4:28 PM, Eliezer Croitoru <eliezer@ngtech.co.il>wrote:

[#400784] REXML & HTMLentities incorrectly map to UTF-8 — "Mark S." <lists@...>

I have some XML data (UTF 8) that I'm trying to convert into another XML

13 messages 2012/10/30

Re: sparse xml string

From: Brian Candler <lists@...>
Date: 2012-10-04 06:18:49 UTC
List: ruby-talk #400003
ajay paswan wrote in post #1078256:
> Sam Duncan wrote in post #1078254:
>> On 10/02/2012 10:58 AM, ajay paswan wrote:
>>>>
>>>> Sam
>>> What if: str="<a>kl1</a><a>22ik</a><a>3o</a>" ?
>>>
>> 1.9.3p125 :002 > str.scan /<a>[[:alnum:]]+<\/a>/
>>   => ["<a>kl1</a>", "<a>22ik</a>", "<a>3o</a>"]
>>
>> Ping pong
>>
>> I think perhaps you should read up on regular expressions in Ruby =]
>>
>> Sam
>
> I have gone through it previously but could not figure it out, is '.'
> denotes any character?

Yes, and .* means zero or more times of any character, so you might 
think of <a>.*</a> to match an open tag, followed by any text, followed 
by a closing tag.

However this won't work the way you expect, because .* will match the 
largest amount of text it can while still matching the rest of the 
pattern.

>> str="<a>kl1</a><a>22ik</a><a>3o</a>"
=> "<a>kl1</a><a>22ik</a><a>3o</a>"
>> str.scan /<a>.*<\/a>/
=> ["<a>kl1</a><a>22ik</a><a>3o</a>"]

That is: the opening tag is <a>, the content is kl1</a><a>22ik</a><a>3o, 
and the closing tag is </a>. You probably hadn't thought of it like that 
:-)

You can fix this using .*?, which will consume the smallest amount of 
text it can while still matching the rest of the pattern.

>> str.scan /<a>.*?<\/a>/
=> ["<a>kl1</a>", "<a>22ik</a>", "<a>3o</a>"]

But as has been pointed out, regular expressions are not the right way 
to parse XML. Use a library specifically designed for XML parsing.

-- 
Posted via http://www.ruby-forum.com/.

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