Regex Google Group

Re: regular expression for this

eugeny.satt...@gmail.com (Eugeny.Sattler@gmail.com) — Tue, 24 Nov 2009 10:18:29 UT

I don't see big faults in your expression except may be not escaping
the dot.
Having tested your expression I see it catches the whole line.

I might improved it a bit this way
^\s*\d+((,\s+[+-]?\d*\.?\d+[eE ][+-]\d+)+)\s*$

If you know there will be always not less than 1 and not more than 3

regular expression for this

alejandro.ara...@gmail.com (aaragon) — Tue, 24 Nov 2009 02:54:38 UT

Hi guys,

I'm new to this group and I joined after spending quite a while trying
to get a regular expression. The line I'm trying to read from a file
looks like the following:

1, 0.000000e+00, 1.000000e+00, 2.000000e+00

So the first item is a digit, followed by 3 floats. I tried the

xregexp.com

eugeny.satt...@gmail.com (Eugeny.Sattler@gmail.com) — Sat, 21 Nov 2009 11:30:25 UT

[link]

What is it?

XRegExp is an open source (MIT license) JavaScript library that
provides an augmented, extensible, cross-browser implementation of
regular expressions, including support for additional syntax, flags,
and methods.

XRegExp is fully compliant with the regular expression flavor

Re: regex for.. well, anything?

eugeny.satt...@gmail.com (Eugeny.Sattler@gmail.com) — Sat, 21 Nov 2009 10:31:53 UT

I think it is because of the following.
If the software requires "the whole string should be matched",
indeed .* is the right thing to use.

if the software applies "find a substring is enough"
approach , then \S should suffice.
\S might be not supported - in this case [^\s] which is the same, can

Re: regex for.. well, anything?

spacemar...@mailinator.com (SpaceMarine) — Fri, 20 Nov 2009 21:35:04 UT

update on this...

i'm using HP's Quick Test Pro, an enterprise scripting tool designed
to record and verify front-end application use (regression testing).
in it, designating a GUI textbox with the \S pattern (meaning, the
textbox may contain anything) does not work; tests don't pass.

however, using .* as the pattern does work.

Re: Using regular expression to extract text between HTML tags

azeyn...@gmail.com (Zeynel) — Fri, 20 Nov 2009 05:00:16 UT

This is great! Thank you very much. I think it will save me a lot of
time. I also discovered Scrapy [link] which uses XPath
selectors to extract text from HTML. It allows regex too. I am still
trying to make the spider work. I may need to create more than one
spider for websites of different structures. Or I may test with few

Re: matching strings that start with (

eugeny.satt...@gmail.com (Eugeny Sattler) — Fri, 20 Nov 2009 03:54:30 UT

Tested in Free JavaScript Editor by Yaldex Software ([link])
and it matches OK.
See attached screenshot.

Re: matching strings that start with (

j...@jgsoft.com (Jan Goyvaerts) — Fri, 20 Nov 2009 00:18:09 UT

In JavaScript, this regex:

/^\(.*$/m

matches a complete string if it starts with a (. If the string has
embedded line breaks, it matches the first line in the multi-line
string that starts with a (

This regex:

(/^\(/m

matches ( at the start of a line.

The RegexBuddy source code snippet shown above returns true/false

Re: matching strings that start with (

j...@webdos.com (jc) — Thu, 19 Nov 2009 15:43:54 UT

what's interesting is testing this regex

^\(

against this string

(TEST

on these two regex test site .. one matches, one doesn't

[link]
[link]

I tried ^\( and ^\\( in my javascript code and neither works.

surely, there is a way around this.

Re: matching strings that start with (

j...@webdos.com (jc) — Thu, 19 Nov 2009 15:27:18 UT

I tried this..
if (/^\(.*$/im.test(strTitle)) {

But it did not work. Not that I understand that code.

On the subject of Regex buddy..

I tried testing

"^"+"\("
against this string
(TEST)

here
[link]

and it fails.

That reminds me.. anybody know of a good online web based regex

Re: matching strings that start with (

eugeny.satt...@gmail.com (Eugeny Sattler) — Thu, 19 Nov 2009 15:08:03 UT

RegexBuddy advises such syntax:

if (/^\(.*$/im.test(subject_strin g)) {
alert("found");
alert("not found");

Re: matching strings that start with (

j...@webdos.com (jc) — Thu, 19 Nov 2009 13:22:20 UT

I did.. no luck.

Re: matching strings that start with (

inh...@gmail.com (inhahe) — Thu, 19 Nov 2009 12:45:58 UT

JavaScript is probably interpreting the escape sequence and then feeding "("
into the regex machine.
You may have to try doing "\\("

matching strings that start with (

j...@webdos.com (jc) — Thu, 19 Nov 2009 12:35:10 UT

The regex in this Javascript is not working to find strings that
start with "(". Escaping the ( and using chr(40) did not work either.
I confirmed strings that match are being sent. And if I change my
match to another character like "-" it works.

How do I do this?

if (strTitle.match("^"+"("))

Re: Using regular expression to extract text between HTML tags

eugeny.satt...@gmail.com (Eugeny Sattler) — Wed, 18 Nov 2009 10:30:52 UT

Here is the regex and the excel file that illustrate my approach.

The regex (in free spacing mode and in "dot matches newlines" mode)

<title>
((?:(?!</title>)(?! - ).)*?) #column 1
(\x20-\x20(?:(?!</title>)(?! - ).)*?) #column2
(\x20-\x20(?:(?!</title>)(?! - ).)*?)? #column3 (optional)