Regular expression character limit [duplicate] - regex

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Closed 5 years ago.
I have a regular expression for a 15-character limit:
/^([a-zA-Z0-9_]{1,15})$/
I would like to remove the character limit. How do I do this?

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Get The Last Characters end with (/) in include.
The input string is: xxx/xx/xxx/YERpq9CifKTIC1g
The result that I want: /YERpq9CifKTIC1g
Try:
/\/[^\/]+$/
The theory being to match a / followed by any character that isn’t a / ([^\/]) until the end of the line ($).

Regex ignore match more than one dots [duplicate]

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/^[0-9][0-9-.]*[0-9]+$/u
I am trying to match with these like codes:
1.11122.5454.545
55
555.55
65656.75454
Not 111..444 and not 44545...444
How can I stop more than 1 dots between numbers

regex to match $date0$ or ''$date0$'' [duplicate]

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Matching an optional substring in a regex
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How do I make part of a regex match optional?
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Closed 1 year ago.
I have a string which contains both form $date0$ and ''$date0$'' (single ').
I am using this regex to match (\$([^\$]+)\$) but it's only matching $date0$.
What regex should I use that matches both?

How to make regex expression to find all words after (africa) [duplicate]

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how to fix - error: bad escape \u at position 0
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What special characters must be escaped in regular expressions?
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Closed 2 years ago.
I Have text and I want to use regex expression to find all words come after (Africa is):
my code
pattern = r'\africa\sis\s\w+'
re.findall(pattern,a)
the results should contain africa is (some words)
but I got this error
error: bad escape \i at position 0

Why does this Regular Expression match this string? [duplicate]

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Understanding the negated character class
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Negative lookahead in regex to exclude percentage (%) in R
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Closed 2 years ago.
I have the string '05/'. If I write the pattern \d+[^\/]{1}, why does it still match the '05' part of the string? Shouldn't it be fully rejected since there is no match on the 3rd char requirement?