I need to take only a number (a float number) from a text, but I can't remove the whitespaces...
** Update
I have a problem with this method, I only need to consider numbers and ',' between '- EUR' and 'Fee' as rule.
You can use
- EUR\W*(.*?)\W*Fee
See the regex demo.
Variations of the regex that might work in different regex engines:
- EUR\W*\K.*?(?=\W*Fee)
(?<=- EUR\W*).*?(?=\W*Fee)
Details:
- EUR - literal text
\W* - zero or more non-word chars
(.*?) - Group 1: any zero or more chars other than line break chars as few as possible
\W*- zero or more non-word chars
Fee - a string.
You could also match the number format in capture group 1
- EUR\b\D*(\d+(?:,\d+)?)\s+Fee\b
- EUR\b Match - EUR and a word boundary
\D* Match 0+ times any char except a digit
( Capture group 1
\d+(?:,\d+)? Match 1+ digits with an optional decimal part
) Close group 1
\s+Fee\b Match 1+ whitespace chars, Fee and a word boundary
Regex demo
this is working i removed the , from (.) in test string.
Regex example - working
Related
I have fields which contain data in the following possible formats (each line is a different possibility):
AAA - Something Here
AAA - Something Here - D
Something Here
Note that the first group of letters (AAA) can be of varying lengths.
What I am trying to capture is the "Something Here" or "Something Here - D" (if it exists) using PCRE, but I can't get the Regex to work properly for all three cases. I have tried:
- (.*) which works fine for cases 1 and 2 but obviously not 3;
(?<= - )(.*) which also works fine for cases 1 and 2;
(?! - )(.+)| - (.+) works for cases 2 and 3 but not 1.
I feel like I'm on the verge of it but I can't seem to crack it.
Thanks in advance for your help.
Edit: I realized that I was unclear in my requirements. If there is a trailing " - D" (the letter in the data is arbitrary but should only be a single character), that needs to be captured as well.
About the patterns that you tried:
- (.*)This pattern will match the first occurrence of - followed by matching the rest of the line. It will match too much for the second example as the .* will also match the second occurrence of -
(?<= - )(.*)This pattern will match the same as the first example without the - as it asserts that is should occur directly to the left
(?! - )(.+)| - (.+) This pattern uses a negative lookahead which asserts what is directly to the right is not (?! - ). As none of the example start with - , the whole line will be matched directly after the negative lookahead due to .+ and the second part after the alternation | will not be evaluated
If the first group of letters can be of varying length, you could make the match either specific matching 1 or more uppercase characters [A-Z]+ or 1+ word characters \w+.
To get a more broad match, you could match 1 or more non whitespace characters using \S+
^(?:\S+\h-\h)?\K\S+(?:\h(?!-\h)\S+)*
Explanation
^ Start of string
(?:\S+\h-\h)? Optionally match the first group of non whitespace chars followed by - between horizontal whitespace chars
\K Clear the match buffer (Forget what is currently matched)
\S+ Match 1+ non whitespace characters
(?: Non capture group
\h(?!-\h) Match a horizontal whitespace char and assert what is directly to the right is not - followed by another horizontal whitespace char
\S+ Match 1+ non whitespace chars
)* Close non capture group and repeat 1+ times to match more "words" separated by spaces
Regex demo
Edit
To match an optional hyphen and trailing single character, you could add an optional non capturing group (?:-\h\S\h*)?$ and assert the end of the string if the pattern should match the whole string:
^(?:\S+\h-\h)?\K\S+(?:\h(?!-\h)\S+)*\h*(?:-\h\S\h*)?$
Regex demo
You may use
^(?:.*? - )?\K.*?(?= - | *$)
^(?:.*?\h-\h)?\K.*?(?=\h-\h|\h*$)
See the regex demo
Details
^ - start of string
-(?:.*? - )? - an optional non-capturing group matching any 0+ chars other than line break chars as few as possible up to the first space-space
\K - match reset operator
.*? - any 0+ chars other than line break chars as few as possible
(?= - | *$) - space-space or 0+ spaces till the end of string should follow immediately on the right.
Note that \h matches any horizontal whitespace chars.
^(?:[A-Z]+ - \K)?.*\S
demo
Since "Something Here" can be anything, there's no reason to specially describe the eventual last letter in the pattern. You don't need something more complicated.
With this pattern I assume that you are not interested by the trailing spaces, that's why I ended it with \S. If you want to keep them, remove the \S and change the previous quantifier to +.
I've got some strings like so
2020-03-05 11:23:25: zone 10 type Interior name 'Study PIR'
2020-03-05 11:57:15: zone 13 type Entry/Exit 1 name 'Front Door'
I've got the below regex that works for the first string, however I'm not sure how to get the product group to match the full group "Entry/Exit 1" The number can range from 1 - 100
(?<Date>[0-9]{4}-[0-2][1-9]-[0-2][1-9]) (?<Time>2[0-3]|[01][0-9]:[0-5][0-9]:[0-5][0-9]): (?<msgType>\w+) (?<id>[0-9]+) (?<type>\w+) (?<product>\w+) \w+ (?<deviceName>'([^']*)')
Any ideas how I can modify this to match?
Your product group pattern should be
(?<product>\w+(?:\/\w+\s+\d+)?)
See the regex demo
Details
\w+ - 1+ word chars
(?:\/\w+\s+\d+)? - an optional sequence of
\/ - a / char
\w+ - 1+ word chars
\s+ - 1+ whitespaces
\d+ - 1+ digits.
If the format is unknown, or does not fit the above description, just use (?<product>.*?), see demo.
goal
I want to retrieve only this string "14" from this message with a logstash Grok
3/03/0 EE 14 GFR 20 AAA XXXXX 50 3365.00
this is my grok code
grok{
match => {
field1 => [
"(?<number_extract>\d{0}\s\d{1,3}\s{1})"
]
}
}
I would like to match just the first match "14" but my Grok filter returns all matches:
14 20 50
If you need to find the first occurrence of a number that consists of 1, 2 or 3 digits only, you may use
^(?:.*?\s)?(?<number_extract>\d{1,3})(?!\S)
Details
^ - start of string
(?:.*?\s)? - an optional substring of any 0+ chars other than line break chars as few as possible, and then a whitespace (this enables a match at the start of the string if it is there)
(?<number_extract>\d{1,3}) - 1 to 3 digits
(?!\S) - a negative lookahead that makes sure there is a whitespace or end of string immediately to the right (enables a match at the end of the string).
Alternative solution
If you know that the number you are looking for is after a date-like field and another field, and you want to force this pre-validation, you may use
^\d+/\d+/\d+\s+\S+\s+(?<number_extract>\d+)
See the regex demo
If you do not have to check if the first field is date-like, you may simply use
^\S+\s+\S+\s+(?<number_extract>\d+)
^(?:\S+\s+){2}(?<number_extract>\d+) // Equivalent
See the regex demo here.
Details
^ - start of string
\d+/\d+/\d+ - 1+ digits, /, 1+ digits, /, 1+ digits
\s+ - 1+ whitespaces
\S+ - 1+ chars other than whitespace
\s+ - 1+ whitespaces
(?<number_extract>\d+) - Capturing group "number_extract": 1+ digits.
Grok demo:
I am trying to extract number only (float?) from accounting numbers in google sheet with abbrev. units like K,M,B and sometimes in a bracket when negative. Sorry I am so new in regex, how to write a regular express covering different possibilities like (213M),(31.23B)?
\(([0-9.]+\.\[0-9.]+)\)
You may use
\((-?\d+(?:\.\d+)?)[KMB]\)
Details
\( - a literal ( char
(-?\d+(?:\.\d+)?) - Group 1:
-? - an optional -
\d+ - 1+ digits
(?:\.\d+)? - an optional non-capturing group matching one or zero occurrences of a dot followed with 1+ digits
[KMB] - a character class matching K, M or B
\) - a literal ) char.
See the regex demo.
I have a regex that captures the following expression
XPT 123A
Now I need to add "something" to my regex to capture the remaining string as a group
XPT 123A I AM VERY HAPPY
So XPT would be group 1, 123A group 2, and I AM VERY HAPPY group 3.
Here is my regex (also here http://regexr.com/4mocf):
^([A-Z]{2,4}).((?=\d)[a-zA-Z\d]{0,4})
EDIT:
I dont want to name my groups (editing b/c some people thought it was a dup of another question)
Assuming Group 3 is optional, you may use
^([A-Z]{2,4}) (\d[a-zA-Z\d]{0,3})(?: (.*))?$
^([A-Z]{2,4})\s+(\d[a-zA-Z\d]{0,3})(?:\s+(.*))?$
The \s+ matches any 1+ whitespace chars.
See the regex demo.
Details
^ - start of string
([A-Z]{2,4}) - Group 1: two, three or four uppercase ASCII letters
\s+ - 1+ whitespaces
(\d[a-zA-Z\d]{0,3}) - Group 2: a digit followed with 0 or more alphanumeric chars
(?:\s+(.*))? - an optional non-capturing group matching 1 or 0 occurrences of:
\s+ - 1+ whitespaces
(.*) - Group 3: any 0+ chars other than line break chars as many as possible
$ - end of string
Just add the following suffix to your regex to capture the rest of the line:
(?<rest>.+)?$