offtopic but i need help (little) - maya MEL RegEx question

[lala]

i have a string like "blabla_blabla_charName"

i want to strip / remove "_charName" from end...

one attempt is

string $saveFileName = `substitute "^[^.]*\\_" $saveFileString ""`; // it retuns "charName"

i know, its almost opposite to what i need

thanks in advance 

[Justin Israel]

Strip the "_charName" part from the end of the given string:

substitute "_charName$" "blabla_blabla_charName" "";
// Result: blabla_blabla //

​

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[Justin Israel]

More specifically, with a variable substitution:

string $charName = "charName"
string $source = "blabla_blabla_charName";

string $stripped = `substitute ("_" + $charName + "$") $source ""`;
// Result: blabla_blabla //

​

[lala]

sorry, my bad explanation. charName is variable and changing. i wanted to ask, about stripping last part with underscore via regex. but thanks anyways

[Justin Israel]

That's what my second reply shows. I stored the substring in $charName and then stripped it. That's what you wanted right?

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[lala]

string $srcFile = "blabla_blabla_charName.fbx";

string $saveFileString = basename( $srcFile, ".fbx" );

string $charName = "_" + `substitute "^[^.]*\\_" $saveFileString ""`;

string $saveFileName = `substitute $charName $saveFileString ""`;

print $saveFileName;

apparently its solved now with your help. but if you look at line 3, its cheap (adding "underscore manually"). but atleast its working.

generally, i am sure, regex in line 3 again (second part) can solve it..but still, thanks anyways, really appriciate your prompt responses. always. thats only reason, posting here is more fun than anywhere else. 

On Saturday, 5 July 2014 11:55:36 UTC+5, Justin Israel wrote:

 That's what you wanted right?

 options, visit https://groups.google.com/d/optout.

[Justin Israel]

Oh ok. You didn't actually have the charName value and you just want to remove the last component separated by an underscore. 

I don't really see the reason to try and first parse the token out of the string, and then use it to remove it from the original. You can just use a regex to strip it:

string $srcFile = "blabla_blabla_charName.fbx";
string $saveFileString = basename( $srcFile, ".fbx"

 );
string $saveFileName = `substitute "_[a-zA-Z0-9]+$" $saveFileString ""`;

​

Or you can completely avoid regular expression and just split the string on underscore, and join it back without the last component:

string $srcFile = "blabla_blabla_charName.fbx";
string $tokens[];
int $size = tokenize($srcFile, "_", $tokens);
stringArrayRemoveAtIndex($size-1, $tokens);
string $saveFileName = stringArrayToString($tokens, "_");

​

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[haseeb ahmed]

wow, its amazing. thank you sir, its perfect. i owe you a drink . regards,lala

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regards,
lala

[Justin Israel]

Anytime. And if we meet, a decent Rum will suit just fine ☺

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