Hello - first post, question on scripting

[sweet40]

Hi all, hello world.

I am thinking on an easy mode xyplorer could retrieve all tokens which met a certain condition.

alltokens, "parameter 1 - match start", "parameter 2 - match end", "return"

being "return" switches like

1, return to function
2, to clipboard
3, splash a 'text' containing all found tokens, paragraph-separated.

[highend]

What examples do you have, where regexmatches() and a few extra lines don't do it's work?

[sweet40]

For instance I'd like to get all tokens between "To:<crlf>" and ending with first ">" found:

header
...
To:
<Mom's Name>
Message
...

and the like.

"<Mom's Name" should be returned here, along with all other tokens metting the criteria.

Currently I get tokens pre and post "To:<crlf>", then I clean them but its cumbersome, boring and prone to fail.

[40k]

A common regular expression for catching data between delimiters is this:

To:[<][^>]*[>]

Read this as:

Find any sequence of characters starting with To: followed by < followed by any character that is not > followed by >

Note you may also write this as:

To:<[^>]*>

As the outer < and > are not a character class.

As I've done some extensive reading on this subject in connection with some of my scripts I'd like to recommend you Powergrep and a couple of the following links on Regexes:

http://www.debuggex.com/?re=&str=
http://www.zytrax.com/tech/web/regex.htm
http://www.regular-expressions.info/dot.html

[highend]

Code: Select all

	$test = <<<>>>
header
...
To:
<Daddy,Brother,Mom's Name>
Message
...
>>>;
	$content = regexreplace(regexmatches($test, "To:\r\n<[^>]+", "|"), "To:\r\n<", "");
	text $content;

And now you can proceed by a while / foreach loop or just get a single token out of it via gettoken().

Sorry, but I don't find one line of code to cumbersome.

[40k]

Code: Select all

	$test = <<<>>>
header
...
To:
<Daddy,Brother,Mom's Name>
Message
...
>>>;
	$content = regexreplace(regexmatches($test, "To:\r\n<[^>]+", "|"), "To:\r\n<", "");
	text $content;

And now you can proceed by a while / foreach loop or just get a single token out of it via gettoken().

Sorry, but I don't find one line of code to cumbersome.

Won't that fail easily though?

[highend]

Won't that fail easily though?

Why should it?

I can safely assume that a message will at least have one recipient, right?

[sweet40]

Good reasons why I expect this function to be created:

1. regex-free: you just need to state the whole string needing strip, plus the boundaries. I'm definitely not a regex person.
2. easy: why one would need to put a whole section of code a single function could do?
3. fast: why one would need to put a whole section of code a single function could do?

Ok, I also had to look after a common token to split sections into, then loop into foreach. But what happens when no such a token is found?

40k: I tried to put regexmatch to work along your suggestion expecting it would return all tokens but I may have not understood the function yet.

highend: you saved my ass, thank you!

[Marco]

Hi all, hello world.

I am thinking on an easy mode xyplorer could retrieve all tokens which met a certain condition.

alltokens, "parameter 1 - match start", "parameter 2 - match end", "return"

being "return" switches like

1, return to function
2, to clipboard
3, splash a 'text' containing all found tokens, paragraph-separated.

Good reasons why I expect this function to be created:

1. regex-free: you just need to state the whole string needing strip, plus the boundaries. I'm definitely not a regex person.
2. easy: why one would need to put a whole section of code a single function could do?
3. fast: why one would need to put a whole section of code a single function could do?

Ok, I also had to look after a common token to split sections into, then loop into foreach. But what happens when no such a token is found?

40k: I tried to put regexmatch to work along your suggestion expecting it would return all tokens but I may have not understood the function yet.

highend: you saved my ass, thank you!

The function you desire can be perfectly accomplished with regexmatches(). The only drawback is that currently the regex engine behind XY doesn't support lookaround constructs... If so running

Code: Select all

 regexmatches($your-text,(?<="match_start").*?(?="match_end"),"<crlf>")

would do the trick. With another command you could either print it on screen (text), return it to functions by saving it in a variable, or pasting it to clipboard with copytext.
A good programmer wouldn't expect functions that do a lot of things because you conversely lose flexibility and granularity...
PS: regex are one of the most powerful things in scenarios you describe.

[sweet40]

Is it possible this can be implemented, admin?
I badly need such a thing almost every day.

[admin]

Didn't Marco post a solution?

[Marco]

Didn't Marco post a solution?

Nope, because afaics XY regex engine doesn't support lookaround

Code: Select all

 $testo =  "My <b>cat</b> is furry";
 $regex = "(?<=<b>)\w+(?=</b>)";
 text regexmatches("$testo","$regex"); //should return "cat" (without quotes)

gives an error.
Btw, you can emulate lookaround by first finding the <b>cat</b>'s with regexmatches and then stripping the outer marking with replacelist or regexreplace.

[admin]

I don't have the desired functionality anywhere in my source code, hence I conclude it is alien to file management. And I think highend has shown that it can be done with scripting already.

[sweet40]

Yes, but there's the hard and the easy way of doing stuff and when I saw some functions on XY i thought I could use readfile on a series of plain text databases to retrieve data like

Code: Select all

...
"20040imp.jsG:\Comix320LittleNemo\Garfield\Site\30years_1451631_files\ff2_data\st_data1457130034394141482137600300343941414821376"
"20040q.gifG:\Comix320LittleNemo\Garfield\Site\30years_1451631_files\ff2_data\st_data43130034394141482137600300343941414821376"
"20030970dfec473c9e448603c93b62314810.swfG:\Comix320LittleNemo\Garfield\Site\30years_1451631_files\st_data27135130034394141482137600300343941414821376"
"20040imp.jsG:\Comix320LittleNemo\Garfield\Site\30years_1451631_files\st_data1301130034394141482137600300343941414821376"
"20030a.htmG:\Comix320LittleNemo\Garfield\Site\30years_details_1451631_files11369130034394149482137600300343941494821376"
"20030action-download.gifG:\Comix320LittleNemo\Garfield\Site\30years_details_1451631_files86130034394149482137600300343941494821376"
...

and programmatically select only the files created on 2003, then do the expected file management.
I agree some of you may master some tricks and yawn at my necessity. I just thought I could do this using your engine.
My initial example may be bad, but at least it would be easier to explain what I want rather than exposing those cryptic data which in case is irrelevant to the desired principle: obtaining data using simple commands, easy for us neophytes to understand.
Sorry.

[Marco]

Yes, but there's the hard and the easy way of doing stuff and when I saw some functions on XY i thought I could use readfile on a series of plain text databases to retrieve data like

Code: Select all

...
"20040imp.jsG:\Comix320LittleNemo\Garfield\Site\30years_1451631_files\ff2_data\st_data1457130034394141482137600300343941414821376"
...

and programmatically select only the files created on 2003, then do the expected file management.
I agree some of you may master some tricks and yawn at my necessity. I just thought I could do this using your engine.
My initial example may be bad, but at least it would be easier to explain what I want rather than exposing those cryptic data which in case is irrelevant to the desired principle: obtaining data using simple commands, easy for us neophytes to understand.
Sorry.

Well, by posting the cryptic data someone might be able to teach you fishing...

Code: Select all

 $data = readfile("FULL PATH TO THE TEXT FILE CONTAINING CRYPTIC DATA");	//pag 401 of pdf help file, located at http://www.xyplorer.com/download/XYplorerHelp.pdf
 $list = regexmatches('^"2003.*', "$data", "<crlf>");				//pag 404 ...
 text $list;									//pag 452 ...

This shows in a window all the lines starting with "2003, one line per line.