Skip to content
Advertisement

Tag: regex

Python Regex – Reference first line on every match, until the start of a new group

Sample text: Intended result: Regex Attempts: (?:^This is (?P<H>HeaderB)s) (Line (?P<L>d)s)*? Matches only the Header ‘H’ and 1st ‘L’ Line (?:^This is (?P<H>HeaderB)s)? (Line (?P<L>d)s)*? manage to match multiple ‘L’ Lines however, only first 2 line are of the same match, not the subsequent L lines does not reference the Header capture group. I tried other attempts to adjust the

Regex: Remove the letters with length 1-3 which are before the dot

If I have an input something like this Another example is I want to produce a code which is generalized for any group of letter in any language. This is my code So I can change ‘A’ with any other letter, but for some reason isn’t working well. I tried also this one but isn’t working as well. Answer Try

How to automatically remove space before punctuation

For example: “This is some text . This is some text” should be “This is some text. This is some text” We can use replase but replacing ‘ .’ with ‘.’, but it’s not a good approach. Please let me know if you have any other idea which is generalised for any punctuation. Answer Sorry I’m on mobile but it

Remove unwanted str in Pandas dataframe

‘I am reading a csv file using panda read_csv which contains data, In the last column, I want to remove the Index, Step, data= and want to retain the hex value part. I have created a list with the unwanted values and used regex but nothing seem to work. Answer I suggest that you fix your code using The ‘|’.join([re.escape(x)

Translating python raw string / regex to ruby

I’m currently trying to translate a python script to ruby. Now I’m stuck on a part that uses a raw string for a regex. This is the original python code: This is my attempt to translate it to ruby: Unfortunately I must be doing it wrong because I get this error: I also tried: But it results in the same

How to parse and match with multiple regexes

I have an input data of the form: I need to parse through this data and the IN: / OUT: /INOUT: depending on three regexes given as: My output should be: The code I tried: The problem I face is that it does not parse correctly and it is not getting matched for each subdata beginning with [2] Answer Though

Extracting Multiple Parameters from a String using Regex or Pandas

I’m working with the following DataFrame Consisting of parameters (bphigh bplow weight) of type stras follows {u’bphigh’: u’120′, u’bplow’: u’70’, u’weight’: u’84.8′} I’d like to extract these parameters and their corresponding values to columns as shown below I tried using the following pandas method which hasn’t really been consistent in extracting the parameters vitals[‘vital’].str.extract(r”{u’bphigh’:s*(w+)”) Is there a more efficient workaround

Advertisement