Insert Hyphen after every 4th character in input.

Question

Hi All, 
 
 I have a requirement, have to separate the string with a Hyphen(-) after every 4th character entered by the use, also it should not count space as string and should ignore it.

Dave Lewis · Answer

insert("2345987611112222", "-", {5,9,13,}) Run this in "Try it now" box on any function documentation page. This should be a good start. You can use stripwith() to remove the spaces, or anything else you don't want. The stripwith function with your text input as it's first parameter will replace "2345987611112222" 
 
 Advantages over others: You don't need a plugin and it's only 1 line of code.

dipaki · Answer

You can use regular expression plug-in. Giving the 2 examples here, please check which satisfies your requirement 
 
string= "The local variable to use when evaluating the given expression." 
1) regexinsertmatchmarkers("\S{4}", stripwith(string, " "), "", "-", false) 
Returns : "Thel-ocal-vari-able-tous-ewhe-neva-luat-ingt-hegi-vene-xpre-ssio-n." 
 
2) regexinsertmatchmarkers("\S \S{3}|\S{2} \S{2}|\S{3} \S|\S{4}", local!string, "", "-", false) 
Returns: "The l-ocal- vari-able- to us-e whe-n eva-luat-ing t-he gi-ven e-xpre-ssio-n." 
 
Thanks, 
Dipak Ingle

vimalkumars · Answer

Hi Kumar, 
 You can create an expression rule with below code and use it: 
 with(
 local!insertIndex: 4, /*"Insert Hyphen after every 4th character in input."*/
 if(isnull(ri!text), null, 
 joinarray(
 char(
 insert(
 code(
 ri!text
 ),
 45, /* To Insert Hyphen */
 (
 (
 enumerate(
 quotient(
 len(
 ri!text
 ),
 local!insertIndex
 )
 ) + 1
 ) * local!insertIndex
 ) + 1
 )
 )
 )
 )
 )

Amit Mishra · Answer

Small correction on vimalkumars (vimal) code. If text is up to 4 character length you don't want hyphen(-), right? Use below code. 
Thanks.

with( 
 local!insertIndex: 4, /*"Insert Hyphen after every 4th character in input."*/ 
 if(isnull(ri!text), null, 
 if(len(ri!text)<5,ri!text, joinarray( 
 char( 
 insert( 
 code( 
 ri!text 
 ), 
 45, /* To Insert Hyphen */ 
 ( 
 ( 
 enumerate( 
 quotient( 
 len( 
 ri!text 
 ), 
 local!insertIndex 
 ) 
 ) + 1 
 ) * local!insertIndex 
 ) + 1 
 ) 
 ) 
 ) 
 ) 
 ) 
 )