How can I check these double Regex
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0
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I want to check if a phone number has 8 digits and doesn't start with zero. I used this pattern ^[1-9][0-9]{7} for this purpose, also I wanna check that these 8 numbers are not duplicated completely like 11111111 or 77777777, for which I use this pattern: (w)1{7,}, separately to check that the number doesn't match with it.
Now I want to combine these Regex patterns together but I can't. I try to combine these patterns in this way:
(?=([1-9][0-9]{7}))(?:(?!(w1{7,}))) but unfortunately it doesn't work.
Note that I have to use one Regex pattern and need to combine these two patterns into one.
Could anyone help me please?
javascript c# regex string validation
edited Nov 11 at 8:25
ProgrammerPer
411511
asked Nov 11 at 7:53
msitworld
278
add a comment |
up vote
0
down vote
favorite
I want to check if a phone number has 8 digits and doesn't start with zero. I used this pattern ^[1-9][0-9]{7} for this purpose, also I wanna check that these 8 numbers are not duplicated completely like 11111111 or 77777777, for which I use this pattern: (w)1{7,}, separately to check that the number doesn't match with it.
Now I want to combine these Regex patterns together but I can't. I try to combine these patterns in this way:
(?=([1-9][0-9]{7}))(?:(?!(w1{7,}))) but unfortunately it doesn't work.
Note that I have to use one Regex pattern and need to combine these two patterns into one.
Could anyone help me please?
javascript c# regex string validation
edited Nov 11 at 8:25
ProgrammerPer
411511
asked Nov 11 at 7:53
msitworld
278
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I want to check if a phone number has 8 digits and doesn't start with zero. I used this pattern ^[1-9][0-9]{7} for this purpose, also I wanna check that these 8 numbers are not duplicated completely like 11111111 or 77777777, for which I use this pattern: (w)1{7,}, separately to check that the number doesn't match with it.
Now I want to combine these Regex patterns together but I can't. I try to combine these patterns in this way:
(?=([1-9][0-9]{7}))(?:(?!(w1{7,}))) but unfortunately it doesn't work.
Note that I have to use one Regex pattern and need to combine these two patterns into one.
Could anyone help me please?
javascript c# regex string validation
edited Nov 11 at 8:25
ProgrammerPer
411511
asked Nov 11 at 7:53
msitworld
278
I want to check if a phone number has 8 digits and doesn't start with zero. I used this pattern ^[1-9][0-9]{7} for this purpose, also I wanna check that these 8 numbers are not duplicated completely like 11111111 or 77777777, for which I use this pattern: (w)1{7,}, separately to check that the number doesn't match with it.
Now I want to combine these Regex patterns together but I can't. I try to combine these patterns in this way:
(?=([1-9][0-9]{7}))(?:(?!(w1{7,}))) but unfortunately it doesn't work.
Note that I have to use one Regex pattern and need to combine these two patterns into one.
Could anyone help me please?
javascript c# regex string validation
javascript c# regex string validation
edited Nov 11 at 8:25
ProgrammerPer
411511
asked Nov 11 at 7:53
msitworld
278
edited Nov 11 at 8:25
ProgrammerPer
411511
asked Nov 11 at 7:53
msitworld
278
edited Nov 11 at 8:25
ProgrammerPer
411511
edited Nov 11 at 8:25
ProgrammerPer
411511
edited Nov 11 at 8:25
ProgrammerPer
411511
411511
asked Nov 11 at 7:53
msitworld
278
asked Nov 11 at 7:53
msitworld
278
asked Nov 11 at 7:53
msitworld
278
278
add a comment |
add a comment |
1 Answer
1
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oldest
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6
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It's only the first character you need to check, it looks like - capture it in a group, then use negative lookahead for that group repeated 7 times, to ensure that the entire string is not all the same number, then finish with d{7} to match the other 7 digits:
^([1-9])(?!1{7})d{7}$
https://regex101.com/r/DbTtAJ/1
(note that [0-9] simplifies to d)
answered Nov 11 at 7:56
CertainPerformance
67.9k143353
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
6
down vote
accepted
It's only the first character you need to check, it looks like - capture it in a group, then use negative lookahead for that group repeated 7 times, to ensure that the entire string is not all the same number, then finish with d{7} to match the other 7 digits:
^([1-9])(?!1{7})d{7}$
https://regex101.com/r/DbTtAJ/1
(note that [0-9] simplifies to d)
answered Nov 11 at 7:56
CertainPerformance
67.9k143353
add a comment |
up vote
6
down vote
accepted
It's only the first character you need to check, it looks like - capture it in a group, then use negative lookahead for that group repeated 7 times, to ensure that the entire string is not all the same number, then finish with d{7} to match the other 7 digits:
^([1-9])(?!1{7})d{7}$
https://regex101.com/r/DbTtAJ/1
(note that [0-9] simplifies to d)
answered Nov 11 at 7:56
CertainPerformance
67.9k143353
add a comment |
up vote
6
down vote
accepted
up vote
6
down vote
accepted
It's only the first character you need to check, it looks like - capture it in a group, then use negative lookahead for that group repeated 7 times, to ensure that the entire string is not all the same number, then finish with d{7} to match the other 7 digits:
^([1-9])(?!1{7})d{7}$
https://regex101.com/r/DbTtAJ/1
(note that [0-9] simplifies to d)
answered Nov 11 at 7:56
CertainPerformance
67.9k143353
It's only the first character you need to check, it looks like - capture it in a group, then use negative lookahead for that group repeated 7 times, to ensure that the entire string is not all the same number, then finish with d{7} to match the other 7 digits:
^([1-9])(?!1{7})d{7}$
https://regex101.com/r/DbTtAJ/1
(note that [0-9] simplifies to d)
answered Nov 11 at 7:56
CertainPerformance
67.9k143353
answered Nov 11 at 7:56
CertainPerformance
67.9k143353
answered Nov 11 at 7:56
CertainPerformance
67.9k143353
answered Nov 11 at 7:56
CertainPerformance
67.9k143353
67.9k143353
add a comment |
add a comment |
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