topic Re: Validate Alpha Numeric Variable . in Application Development and Automation Discussions

Validate Alpha Numeric Variable .

Former Member — Mon, 11 Nov 2013 09:44:32 GMT

i have a company variable and i need to validate it with all abcde...z and 1234567890 .

and i know only one procedure to do this :

if v_comp co 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789''

is there any other way to do in void hard code ??

Re: Validate Alpha Numeric Variable .

Former Member — Mon, 11 Nov 2013 09:54:59 GMT

Hello,

For the A to Z part u can use the system variable SY-ABCDE.

data g_var type string.

g_var = 'A0131V'.

IF g_var ca sy-abcde and g_var ca '0123456789'.

write 'Alphanumeric'.

ENDIF.

Thanks and Kind Regards,

Yovish.

Re: Validate Alpha Numeric Variable .

Former Member — Mon, 11 Nov 2013 09:59:39 GMT

can you come up with example that includes 1234567890

Re: Validate Alpha Numeric Variable .

Former Member — Mon, 11 Nov 2013 09:59:52 GMT

Hi,

Please check this..

You can use the RegEx '[[:punct:]]' to achieve this requirement:

PARAMETERS: p_data TYPE c LENGTH 10 OBLIGATORY.
AT SELECTION-SCREEN ON p_data.
FIND FIRST OCCURRENCE OF REGEX `[[:punct:]]` IN p_data.
IF sy-subrc = 0. "Special character is found
MESSAGE 'Please input alphanumeric values only' TYPE 'E'.
ENDIF.

Re: Validate Alpha Numeric Variable .

Former Member — Mon, 11 Nov 2013 10:07:05 GMT

Is this example you are refering to?

A1234567890

Result : Alphanumeric

Re: Validate Alpha Numeric Variable .

Former Member — Mon, 11 Nov 2013 10:09:42 GMT

Regex can be used. ALNUM stands for alpha-numeric character. Sy-subrc will be zero if string has only alpha-numeric characters.

FIND REGEX '^[[:alnum:]]+$' IN v_comp.

Message was edited by: Manish Kumar

Re: Validate Alpha Numeric Variable .

Former Member — Mon, 11 Nov 2013 10:21:15 GMT

Hi kusuma ,

am in a class method , the code is in method ,

can u tell with an example .

Re: Validate Alpha Numeric Variable .

former_member209120 — Mon, 11 Nov 2013 10:25:58 GMT

Hi Praveen Bindla

Try like this

PARAMETERS : p_data TYPE string.

IF p_data CO '0123456789'.
   WRITE: 'NUMERIC ONLY'.
ELSEIF p_data CO sy-abcde.
   WRITE: 'ALPHABETS ONLY'.
ELSE.
   WRITE: 'ALPHANUMERIC'.
ENDIF.

Re: Validate Alpha Numeric Variable .

Former Member — Mon, 11 Nov 2013 12:50:39 GMT

The last else statement can include 'space' special symbol ?

Re: Validate Alpha Numeric Variable .

Former Member — Mon, 11 Nov 2013 12:54:22 GMT

i have given your same code and executed and given 'a234' as input , but sy-subrc is '4' ..

Re: Validate Alpha Numeric Variable .

Former Member — Mon, 11 Nov 2013 13:08:28 GMT

The code works for string type.

Your variable is probably of char type, which means trailing spaces, which means you need to search for alpha-numeric, followed by any number of spaces.

DATA v_comp TYPE char10 VALUE 'a123'.
DATA v_comp_str TYPE string VALUE 'a123'.

FIND REGEX '^[[:alnum:]]+$' IN v_comp_str.
WRITE:/ sy-subrc.
FIND REGEX '^[[:alnum:]]+$' IN v_comp.
WRITE:/ sy-subrc.
FIND REGEX '^[[:alnum:]]+\s*$' IN v_comp.
WRITE:/ sy-subrc.

Re: Validate Alpha Numeric Variable .

SuhaSaha — Mon, 11 Nov 2013 14:06:37 GMT

FIND REGEX '^[[:alnum:]]+$' IN v_comp.

Why do you negate the alpha numeric([[:alnum:]]) character set? The OP wants to check if the input string is alpha-numeric.

I'm a novice in RegEx but i think the following construct looks for aplhanumeric correctly -

Message was edited by: Suhas Saha

Stupid me! Moday afternoon blues

BR,

Suhas

Re: Validate Alpha Numeric Variable .

Former Member — Mon, 11 Nov 2013 14:23:34 GMT

Hi Suhas

When ^ is used with character set [ ], it works as negation.

When ^ is used at start of pattern, it means start of line.

$ at end of pattern means end of line.

Instead of matching pattern with any substring, I am matching the pattern with full input string by specifying start and end of line.

So, [[:alnum:]] matches any alpha-numeric character, and FIND REGEX means find first occurrence. Your construct with get successful match as 'a', irrespective of subsequent characters. For example gv_compare = 'a123%' will get positive match.

I have checked for 'contains only' by specifying ^ and $.

Re: Validate Alpha Numeric Variable .

SuhaSaha — Mon, 11 Nov 2013 14:27:26 GMT

Please check the update

Re: Validate Alpha Numeric Variable .

Former Member — Mon, 11 Nov 2013 14:38:38 GMT

Saw the update right after hitting save button.

Too bad SCN does not show warning that stuff you are replying to has changed.

GMail does alert the user when new email in same thread arrives while drafting a reply.

Even better would be show popup to user saying, 'Hey, you are too slow. 4 new replies came in from the moment you started drafting this lengthy reply ', and one of the buttons would say 'Continue anyways, I don't care'.

Re: Validate Alpha Numeric Variable .

SuhaSaha — Mon, 11 Nov 2013 14:58:13 GMT

I should have checked once before replying I don't use RegEx regularly & hence tend to forget the syntax.

- Suhas

Re: Validate Alpha Numeric Variable .

Former Member — Tue, 12 Nov 2013 01:54:28 GMT

Hi techies,

Am concatenating sy abcde and '0123456789' to var .

And using 'co' to compare it with company code.

So as of now it's comparing correctly.

But manish can you be clear in explaining Regex concept .

Am very new to concept what said.

I want to use your Regex way..

Thanks...

Re: Validate Alpha Numeric Variable .

arindam_m — Tue, 12 Nov 2013 02:29:37 GMT

Hi,

Check program 'DEMO_REGEX_TOY' should help you get a fair idea and play around with REGEX.

Cheers,

Arindam

Re: Validate Alpha Numeric Variable .

Former Member — Tue, 12 Nov 2013 05:23:08 GMT

Hi,

Check 'NUMERIC_CHECK' function

Re: Validate Alpha Numeric Variable .

Former Member — Tue, 12 Nov 2013 05:24:51 GMT

You can use the FM CONVERSION_EXIT_ALFAN_INPUT.

This would give an error if any special character is entered, only alphabets, numbers and underscore is allowed.