regex

问题 I am developing web app using C#. I want to replace multiple spaces with single space in between string. I tried with normal string replace function, but it was not helpful. It is possible with Regular Expression, but I don't have clear idea about that. Please provide a example code for the following string: Actual String: Have a Nice Day ! !! Needed: Have a Nice Day !!! 回答1: You can match the following: @"\s+" and replace with: " " Regex.Replace("Have a Nice Day ! !!", @"\s+", " "); 回答2: See

问题 I have a data frame as shown below: c("3.2% 1ST $100000 AND 1.1% BALANCE", "3.3% 1ST $100000 AND 1.2% BALANCE AND $3000 BONUS FULL PRICE ONLY", "$4000", "3.3% 1ST $100000 AND 1.2% BALANCE", "3.3% 1ST $100000 AND 1.2% BALANCE", "3.2% 1ST $100000 1.1% BALANCE") [1] "3.2% 1ST $100000 AND 1.1% BALANCE" [2] "3.3% 1ST $100000 AND 1.2% BALANCE AND $3000 BONUS FULL PRICE ONLY" [3] "$4000" [4] "3.3% 1ST $100000 AND 1.2% BALANCE" [5] "3.3% 1ST $100000 AND 1.2% BALANCE" [6] "3.2% 1ST $100000 1.1%

问题 I've got input from users once in a while who are using those annoying stikethrough text generators and it's breaking my code. I've tried some code I found here on SO... $string = preg_replace('/[\x00-\x1F\x80-\xFF]/', '', $string); And it works, but I need it to ONLY replace the combining long stroke overlays. http://www.fileformat.info/info/unicode/char/0336/index.htm However, adding this to my regex alone doesn't do the trick. It finds nothing. Help! 回答1: I'm not sure if this completely

问题 I've got input from users once in a while who are using those annoying stikethrough text generators and it's breaking my code. I've tried some code I found here on SO... $string = preg_replace('/[\x00-\x1F\x80-\xFF]/', '', $string); And it works, but I need it to ONLY replace the combining long stroke overlays. http://www.fileformat.info/info/unicode/char/0336/index.htm However, adding this to my regex alone doesn't do the trick. It finds nothing. Help! 回答1: I'm not sure if this completely

问题 I'm working with Python 3.5 in Windows. I have a dataframe where a 'titles' str type column contains titles of headlines, some of which have special characters such as â , € , ˜ . I am trying to replace these with a space '' using pandas.replace . I have tried various iterations and nothing works. I am able to replace regular characters, but these special characters just don't seem to work. The code runs without error, but the replacement simply does not occur, and instead the original title

问题 I'm working with Python 3.5 in Windows. I have a dataframe where a 'titles' str type column contains titles of headlines, some of which have special characters such as â , € , ˜ . I am trying to replace these with a space '' using pandas.replace . I have tried various iterations and nothing works. I am able to replace regular characters, but these special characters just don't seem to work. The code runs without error, but the replacement simply does not occur, and instead the original title

问题 If I want to analyze a string using dozens of regular-expressions, could either the threading or multiprocessing module improve performance? In other words, would analyzing the string on multiple threads or processes be faster than: match = re.search(regex1, string) if match: afunction(match) else: match = re.search(regex2, string) if match: bfunction(match) else: match = re.search(regex3, string) if match: cfunction(match) ... No more than one regular expression would ever match, so that's

问题 If I want to analyze a string using dozens of regular-expressions, could either the threading or multiprocessing module improve performance? In other words, would analyzing the string on multiple threads or processes be faster than: match = re.search(regex1, string) if match: afunction(match) else: match = re.search(regex2, string) if match: bfunction(match) else: match = re.search(regex3, string) if match: cfunction(match) ... No more than one regular expression would ever match, so that's

问题 If I want to analyze a string using dozens of regular-expressions, could either the threading or multiprocessing module improve performance? In other words, would analyzing the string on multiple threads or processes be faster than: match = re.search(regex1, string) if match: afunction(match) else: match = re.search(regex2, string) if match: bfunction(match) else: match = re.search(regex3, string) if match: cfunction(match) ... No more than one regular expression would ever match, so that's

问题 We can get the last git tag, which starts by a word(e.g TEST) as follow: git describe --tag --dirty --match 'TEST*' I am wondering how can I get the last tag, which starts by word1 or word2 (e.g. TEST OR RUN)? I've tried to use regex or following but it does not work: git describe --tag --dirty --match 'TEST*|RUN*' SOLUTION: We can get number of commits to HEAD and compare those numbers, the one which has less commits is the more recently. You can find its script in the answer, which I have