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RegEX - Find Magnetic Card String for Track 1 and Track 2 substrings

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0

0

A Card reader is simply a keyboard input that once a Card is swiped, a string is displayed in any focused text field.

I would like to split the following:

Track 1: which is delimited by a % and a ?

Track 2: which is delimited by a ; and a ?

However not all Cards have both Tracks, some have only the first, and some have only the second.

I'd like to find a RegEx that parses out Track 1 and Track 2 if either exist.

Here are sample Cards swipes which generates these Strings:

%12345?;54321? (has both Track 1 & Track 2)
%1234678? (has only Track 1)
;98765? (has only Track 2)
%93857563932746584?;38475? (has both Track 1 & Track 2)

This is the example I'm building off of:

%([0-9]+)?) // for first Track
;([0-9]+)?) // for second Track

regex actionscript-3 substring magnetic-cards

share|improve this question

edited 2 days ago

Yozef

asked Mar 21 at 13:49

YozefYozef

7971027

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  While you wait to find the RegEx... For such simple strings, why not just use substr and/or substring together with firstIndexOf(x) or lastIndexOf(x) where the x could be the %or ? or ;... Also if your "tracks" are numerical why not extract by splitting at & then also removing special characters (leaves tracks)?
  
  – VC.One
  Mar 21 at 14:45
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  PS: I think you got down-voted because your programming question has neither RegEx nor AS3 codes. Show your best try with this regEx and maybe someone can fix it.
  
  – VC.One
  Mar 21 at 14:48
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I did use finding by Index the delimeters, and substring-ing the indexes, however it did not work for all my use cases.
  
  – Yozef
  Mar 21 at 20:52
  

  
  
  
  

add a comment | 

0

0

A Card reader is simply a keyboard input that once a Card is swiped, a string is displayed in any focused text field.

I would like to split the following:

Track 1: which is delimited by a % and a ?

Track 2: which is delimited by a ; and a ?

However not all Cards have both Tracks, some have only the first, and some have only the second.

I'd like to find a RegEx that parses out Track 1 and Track 2 if either exist.

Here are sample Cards swipes which generates these Strings:

%12345?;54321? (has both Track 1 & Track 2)
%1234678? (has only Track 1)
;98765? (has only Track 2)
%93857563932746584?;38475? (has both Track 1 & Track 2)

This is the example I'm building off of:

%([0-9]+)?) // for first Track
;([0-9]+)?) // for second Track

regex actionscript-3 substring magnetic-cards

share|improve this question

edited 2 days ago

Yozef

asked Mar 21 at 13:49

YozefYozef

7971027

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  While you wait to find the RegEx... For such simple strings, why not just use substr and/or substring together with firstIndexOf(x) or lastIndexOf(x) where the x could be the %or ? or ;... Also if your "tracks" are numerical why not extract by splitting at & then also removing special characters (leaves tracks)?
  
  – VC.One
  Mar 21 at 14:45
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  PS: I think you got down-voted because your programming question has neither RegEx nor AS3 codes. Show your best try with this regEx and maybe someone can fix it.
  
  – VC.One
  Mar 21 at 14:48
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I did use finding by Index the delimeters, and substring-ing the indexes, however it did not work for all my use cases.
  
  – Yozef
  Mar 21 at 20:52
  

  
  
  
  

add a comment | 

A Card reader is simply a keyboard input that once a Card is swiped, a string is displayed in any focused text field.

I would like to split the following:

Track 1: which is delimited by a % and a ?

Track 2: which is delimited by a ; and a ?

However not all Cards have both Tracks, some have only the first, and some have only the second.

I'd like to find a RegEx that parses out Track 1 and Track 2 if either exist.

Here are sample Cards swipes which generates these Strings:

%12345?;54321? (has both Track 1 & Track 2)
%1234678? (has only Track 1)
;98765? (has only Track 2)
%93857563932746584?;38475? (has both Track 1 & Track 2)

This is the example I'm building off of:

%([0-9]+)?) // for first Track
;([0-9]+)?) // for second Track

regex actionscript-3 substring magnetic-cards

share|improve this question

edited 2 days ago

Yozef

asked Mar 21 at 13:49

YozefYozef

7971027

%12345?;54321? (has both Track 1 & Track 2)
%1234678? (has only Track 1)
;98765? (has only Track 2)
%93857563932746584?;38475? (has both Track 1 & Track 2)

%([0-9]+)?) // for first Track
;([0-9]+)?) // for second Track

share|improve this question

edited 2 days ago

Yozef

asked Mar 21 at 13:49

YozefYozef

7971027

share|improve this question

edited 2 days ago

Yozef

asked Mar 21 at 13:49

YozefYozef

7971027

asked Mar 21 at 13:49

YozefYozef

7971027

asked Mar 21 at 13:49

YozefYozef

7971027

1 Answer
1

active

oldest

votes

2

This regex will match your track groupings:

/(?:%([0-9]+)?)?(?:;([0-9]+)?)?/g

(?: // non-capturing group
 % // match the % character
 ( // capturing group for the first number
 [0-9] // match digits; could also use d
 + // match 1 or more digits
 ) // close the group
 ? // match the ? character
)
? // match 0 or 1 of the non-capturing group
(?:
 ; // match the ; character
 [0-9] 
 +
 )
 ?
)
?

BTW, I used regexr to figure out the regex patterns here (free site, no affiliation).

share|improve this answer

answered Mar 21 at 15:56

BrianBrian

3,43731535

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Yozef On the Replace tab, try this expression: << $1 - $2 >>
  
  – Brian
  Mar 21 at 21:13
  
  

  
  
  
  

add a comment | 

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2

This regex will match your track groupings:

/(?:%([0-9]+)?)?(?:;([0-9]+)?)?/g

(?: // non-capturing group
 % // match the % character
 ( // capturing group for the first number
 [0-9] // match digits; could also use d
 + // match 1 or more digits
 ) // close the group
 ? // match the ? character
)
? // match 0 or 1 of the non-capturing group
(?:
 ; // match the ; character
 [0-9] 
 +
 )
 ?
)
?

BTW, I used regexr to figure out the regex patterns here (free site, no affiliation).

share|improve this answer

answered Mar 21 at 15:56

BrianBrian

3,43731535

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Yozef On the Replace tab, try this expression: << $1 - $2 >>
  
  – Brian
  Mar 21 at 21:13
  
  

  
  
  
  

add a comment | 

2

This regex will match your track groupings:

/(?:%([0-9]+)?)?(?:;([0-9]+)?)?/g

(?: // non-capturing group
 % // match the % character
 ( // capturing group for the first number
 [0-9] // match digits; could also use d
 + // match 1 or more digits
 ) // close the group
 ? // match the ? character
)
? // match 0 or 1 of the non-capturing group
(?:
 ; // match the ; character
 [0-9] 
 +
 )
 ?
)
?

BTW, I used regexr to figure out the regex patterns here (free site, no affiliation).

share|improve this answer

answered Mar 21 at 15:56

BrianBrian

3,43731535

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Yozef On the Replace tab, try this expression: << $1 - $2 >>
  
  – Brian
  Mar 21 at 21:13
  
  

  
  
  
  

add a comment | 

This regex will match your track groupings:

/(?:%([0-9]+)?)?(?:;([0-9]+)?)?/g

(?: // non-capturing group
 % // match the % character
 ( // capturing group for the first number
 [0-9] // match digits; could also use d
 + // match 1 or more digits
 ) // close the group
 ? // match the ? character
)
? // match 0 or 1 of the non-capturing group
(?:
 ; // match the ; character
 [0-9] 
 +
 )
 ?
)
?

BTW, I used regexr to figure out the regex patterns here (free site, no affiliation).

share|improve this answer

answered Mar 21 at 15:56

BrianBrian

3,43731535

/(?:%([0-9]+)?)?(?:;([0-9]+)?)?/g

(?: // non-capturing group
 % // match the % character
 ( // capturing group for the first number
 [0-9] // match digits; could also use d
 + // match 1 or more digits
 ) // close the group
 ? // match the ? character
)
? // match 0 or 1 of the non-capturing group
(?:
 ; // match the ; character
 [0-9] 
 +
 )
 ?
)
?

share|improve this answer

answered Mar 21 at 15:56

BrianBrian

3,43731535

answered Mar 21 at 15:56

BrianBrian

3,43731535

answered Mar 21 at 15:56

BrianBrian

3,43731535