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Regex number and hyphen

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3

I'm trying to match number with regular expression like:

34-7878-3523-4233

with this:

^[0-9][0-9-]*-[0-9-]*[0-9]$

But the expression also allow

34--34--------88

So how can I allow only one hyphen between the number?

regex

share|improve this question

asked Dec 25 '12 at 13:02

vusanvusan

3,75444 gold badges3333 silver badges7373 bronze badges

add a comment | 

3

I'm trying to match number with regular expression like:

34-7878-3523-4233

with this:

^[0-9][0-9-]*-[0-9-]*[0-9]$

But the expression also allow

34--34--------88

So how can I allow only one hyphen between the number?

regex

share|improve this question

asked Dec 25 '12 at 13:02

vusanvusan

3,75444 gold badges3333 silver badges7373 bronze badges

add a comment | 

I'm trying to match number with regular expression like:

34-7878-3523-4233

with this:

^[0-9][0-9-]*-[0-9-]*[0-9]$

But the expression also allow

34--34--------88

So how can I allow only one hyphen between the number?

regex

share|improve this question

asked Dec 25 '12 at 13:02

vusanvusan

3,75444 gold badges3333 silver badges7373 bronze badges

34-7878-3523-4233

^[0-9][0-9-]*-[0-9-]*[0-9]$

share|improve this question

asked Dec 25 '12 at 13:02

vusanvusan

3,75444 gold badges3333 silver badges7373 bronze badges

share|improve this question

asked Dec 25 '12 at 13:02

vusanvusan

3,75444 gold badges3333 silver badges7373 bronze badges

asked Dec 25 '12 at 13:02

vusanvusan

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asked Dec 25 '12 at 13:02

vusanvusan

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3 Answers
3

active

oldest

votes

17

Your regex:

See it in action: Regexr.com

^[0-9]+(-[0-9]+)+$

Matches:

1-2
1-2-3

Doesn't match:

1
1-
1-2-
1-2----3
1---3

share|improve this answer

edited Dec 25 '12 at 19:12

answered Dec 25 '12 at 13:05

mmdemirbasmmdemirbas

7,21622 gold badges3434 silver badges5050 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks but for me there should exist at least one hyphen
  
  – vusan
  Dec 25 '12 at 13:09
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @vusan OK, updated the regex.
  
  – mmdemirbas
  Dec 25 '12 at 13:10
  

  
  
  
  

add a comment | 

6

That's because, you have included the hyphen in the allowed characters in your character class. You should have it outside.

You can try something like this: -

^([0-9]+-)*[0-9]+$

Now this will match 0 or more repetition of some digits followed by a hyphen. Then one or more digits at the end.

share|improve this answer

answered Dec 25 '12 at 13:04

Rohit JainRohit Jain

172k3939 gold badges327327 silver badges453453 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  It just allow with one hyphen with single digit like 3-3-3. I want to match like 232424-42-2455
  
  – vusan
  Dec 25 '12 at 13:07
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @vusan. No it will match multiple digit now. I forgot to put quantifiers.
  
  – Rohit Jain
  Dec 25 '12 at 13:07
  

  
  
  
  

add a comment | 

3

Use the normal*(special normal*)* pattern:

^[0-9]+(-[0-9]+)+$

where normal is [0-9] and special is -

share|improve this answer

answered Dec 25 '12 at 13:05

fgefge

93k1818 gold badges196196 silver badges285285 bronze badges

add a comment | 

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17

Your regex:

See it in action: Regexr.com

^[0-9]+(-[0-9]+)+$

Matches:

1-2
1-2-3

Doesn't match:

1
1-
1-2-
1-2----3
1---3

share|improve this answer

edited Dec 25 '12 at 19:12

answered Dec 25 '12 at 13:05

mmdemirbasmmdemirbas

7,21622 gold badges3434 silver badges5050 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks but for me there should exist at least one hyphen
  
  – vusan
  Dec 25 '12 at 13:09
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @vusan OK, updated the regex.
  
  – mmdemirbas
  Dec 25 '12 at 13:10
  

  
  
  
  

add a comment | 

17

Your regex:

See it in action: Regexr.com

^[0-9]+(-[0-9]+)+$

Matches:

1-2
1-2-3

Doesn't match:

1
1-
1-2-
1-2----3
1---3

share|improve this answer

edited Dec 25 '12 at 19:12

answered Dec 25 '12 at 13:05

mmdemirbasmmdemirbas

7,21622 gold badges3434 silver badges5050 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks but for me there should exist at least one hyphen
  
  – vusan
  Dec 25 '12 at 13:09
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @vusan OK, updated the regex.
  
  – mmdemirbas
  Dec 25 '12 at 13:10
  

  
  
  
  

add a comment | 

Your regex:

See it in action: Regexr.com

^[0-9]+(-[0-9]+)+$

Matches:

1-2
1-2-3

Doesn't match:

1
1-
1-2-
1-2----3
1---3

share|improve this answer

edited Dec 25 '12 at 19:12

answered Dec 25 '12 at 13:05

mmdemirbasmmdemirbas

7,21622 gold badges3434 silver badges5050 bronze badges

^[0-9]+(-[0-9]+)+$

1-2
1-2-3

1
1-
1-2-
1-2----3
1---3

share|improve this answer

edited Dec 25 '12 at 19:12

answered Dec 25 '12 at 13:05

mmdemirbasmmdemirbas

7,21622 gold badges3434 silver badges5050 bronze badges

answered Dec 25 '12 at 13:05

mmdemirbasmmdemirbas

7,21622 gold badges3434 silver badges5050 bronze badges

answered Dec 25 '12 at 13:05

mmdemirbasmmdemirbas

7,21622 gold badges3434 silver badges5050 bronze badges

6

That's because, you have included the hyphen in the allowed characters in your character class. You should have it outside.

You can try something like this: -

^([0-9]+-)*[0-9]+$

Now this will match 0 or more repetition of some digits followed by a hyphen. Then one or more digits at the end.

share|improve this answer

answered Dec 25 '12 at 13:04

Rohit JainRohit Jain

172k3939 gold badges327327 silver badges453453 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  It just allow with one hyphen with single digit like 3-3-3. I want to match like 232424-42-2455
  
  – vusan
  Dec 25 '12 at 13:07
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @vusan. No it will match multiple digit now. I forgot to put quantifiers.
  
  – Rohit Jain
  Dec 25 '12 at 13:07
  

  
  
  
  

add a comment | 

6

That's because, you have included the hyphen in the allowed characters in your character class. You should have it outside.

You can try something like this: -

^([0-9]+-)*[0-9]+$

Now this will match 0 or more repetition of some digits followed by a hyphen. Then one or more digits at the end.

share|improve this answer

answered Dec 25 '12 at 13:04

Rohit JainRohit Jain

172k3939 gold badges327327 silver badges453453 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  It just allow with one hyphen with single digit like 3-3-3. I want to match like 232424-42-2455
  
  – vusan
  Dec 25 '12 at 13:07
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @vusan. No it will match multiple digit now. I forgot to put quantifiers.
  
  – Rohit Jain
  Dec 25 '12 at 13:07
  

  
  
  
  

add a comment | 

That's because, you have included the hyphen in the allowed characters in your character class. You should have it outside.

You can try something like this: -

^([0-9]+-)*[0-9]+$

Now this will match 0 or more repetition of some digits followed by a hyphen. Then one or more digits at the end.

share|improve this answer

answered Dec 25 '12 at 13:04

Rohit JainRohit Jain

172k3939 gold badges327327 silver badges453453 bronze badges

^([0-9]+-)*[0-9]+$

share|improve this answer

answered Dec 25 '12 at 13:04

Rohit JainRohit Jain

172k3939 gold badges327327 silver badges453453 bronze badges

answered Dec 25 '12 at 13:04

Rohit JainRohit Jain

172k3939 gold badges327327 silver badges453453 bronze badges

answered Dec 25 '12 at 13:04

Rohit JainRohit Jain

172k3939 gold badges327327 silver badges453453 bronze badges

3

Use the normal*(special normal*)* pattern:

^[0-9]+(-[0-9]+)+$

where normal is [0-9] and special is -

share|improve this answer

answered Dec 25 '12 at 13:05

fgefge

93k1818 gold badges196196 silver badges285285 bronze badges

add a comment | 

3

Use the normal*(special normal*)* pattern:

^[0-9]+(-[0-9]+)+$

where normal is [0-9] and special is -

share|improve this answer

answered Dec 25 '12 at 13:05

fgefge

93k1818 gold badges196196 silver badges285285 bronze badges

add a comment | 

Use the normal*(special normal*)* pattern:

^[0-9]+(-[0-9]+)+$

where normal is [0-9] and special is -

share|improve this answer

answered Dec 25 '12 at 13:05

fgefge

93k1818 gold badges196196 silver badges285285 bronze badges

^[0-9]+(-[0-9]+)+$

share|improve this answer

answered Dec 25 '12 at 13:05

fgefge

93k1818 gold badges196196 silver badges285285 bronze badges

answered Dec 25 '12 at 13:05

fgefge

93k1818 gold badges196196 silver badges285285 bronze badges

answered Dec 25 '12 at 13:05

fgefge

93k1818 gold badges196196 silver badges285285 bronze badges