Akhil070 | 2022-01-13 11:00:08 UTC | #1
Need Help on understanding the expressions used in number planning. Please help me to understand the above expression.
Thanks in Advance. Akhil Angara
matheusscharf | 2022-01-13 16:02:49 UTC | #2
Good afternoon Akhil070.
I normally use the sites below to understand my regular expression. I hope helped you. https://regexr.com/ https://regex101.com/
Follow below the result from regex101
^ asserts position at start of a line
1st Capturing Group
(\+)
\+ matches the character + with index 4310 (2B16 or 538) literally (case sensitive)
2nd Capturing Group
([1-9]\d{1,14})
Match a single character present in the list below
[1-9]
1-9 matches a single character in the range between 1 (index 49) and 9 (index 57) (case sensitive)
\d
matches a digit (equivalent to [0-9])
{1,14} matches the previous token between 1 and 14 times, as many times as possible, giving back as needed (greedy)
$ asserts position at the end of a line
system | 2022-02-13 16:03:08 UTC | #3
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