regex remove duplicate words
The regular expression handles only one duplicate at a time, so we use a loop to go through until we haven't made any changes. You can also find and replace text using regex. # Remove punctuation sent_map = sentence.maketrans(dict.fromkeys(string.punctuation)) sent_clean = sentence.translate(sent_map) print('Clean sentence:', sent_clean) no_dupes = ([k for k, v in groupby(sent_clean.split())]) print('No duplicates:', no_dupes) # Put the list back together into a sentence groupby_output = ' '.join(no_dupes) print('Final output:', groupby_output) # At least for this toy example, … The line order/sorting will not be affected other than subsequent duplicate lines … These regular expressions will fix a situation like the one you described in your question as an example. Regular Expression For Duplicate Words, Try this regular expression: \b (\w+)\s+\1\b. Form a regular expression to remove duplicate words from sentences. Nevertheless, it certainly removes some of my problems. To remove a next batch of repeating words, click on the [Clear] button first, then paste the text content with repeating words that you would like to process. How to use the snippet: Paste the code into your script Inspect the annotations to see how it works Remove all duplicates words/strings which are similar to each others. Code to connect to commonly used databases (connecting to other databases is very similar). content. For this to work, the anchors need to match before and after line breaks (and not just at the start and the end of the file or string) Regex to Strip 2+ duplicate words (consecutive/non-consecutive words) Try this regex that can catch 2 or more duplicates words and only leave behind one single word. list.Add(word); And if you need it put back into a string you can rebuild the string from the list. what you posted is just a regexp, I don't really know how should that work. I'm also not proficient enough with Regex to modify the solutions in some of the other posts. For example, the words love and to are repeated in the sentence I love Love to To tO code. Examples: Input : Geeks for Geeks Output : Geeks for Input : Python is great and Java is also great Output : is also Java Python and great /\b(\w+)\b(?=. Java program to remove duplicate words in given string. Solution. *)(\r?\n\1)+$ and replacing with \1. The details of... “\\b”: A word boundary. Distribution: Slackware [64]-X. And the duplicate words need not even be consecutive. Leaderboard. RegEx Testing From Dan's Tools. i think you can try using associative array for this: @arr1 = qw (alpha beta beta gamma gamma gamma); undef %arr2; @arr2 {@arr1} = (); @arr1 = keys (%arr2); [download] @arr1 … ... Java Regex 2 - Duplicate Words. Demonstrates how to remove duplicate words from a string, using PCRE regex with string.rxsub (). Post Posting Guidelines Formatting - Now. 211 Discussions, … Following is the example of identifying the duplicate words in a given string using Regex class methods in c#. You can use the 'text to columns' tool, set your delimiter as , and choose the mode 'split to rows'. Simply open the file in your favorite text editor, and do a search-and-replace searching for ^(. Place this regex in the Replace with box to keep one occurrence of the word (otherwise all repeated words will be removed): ${1}. Submissions. Enter main text in input text area. Type the following command to get rid of all duplicate lines: $ sort garbage.txt | uniq -u Sample output: food that are killing you unix ips as well as enjoy our blog we hope that the labor spent in creating this software wings of fire. This regexReplace code does remove duplicates but only when they are positioned consecutively in the string. Quote: You’re Editing a document and would like to check it for any incorrectly repeated words. Once we had all the words in the form of a String array, we converted the String array to LinkedHashSet using the asList method of the Arrays class.Since the Set does not allow duplicate elements, duplicate words were not added to the LinkedHashSet. Enter any optional delimiter. The second mode removes only the duplicate lines that are consecutive. How do I create words.db from words.txt using gdbm? In this challenge, we use regular expressions (RegEx) to remove instances of words that are repeated more than once, but retain the first occurrence of any case-insensitive repeated word. Search and Replace: Asian Words to English Words, You’re Editing a document and would like to check it for any incorrectly repeated words. The regex should not treat the following as a duplicate: offspring \t offspring \r\n. Click one of the function buttons to remove repeating or duplicate words from the text. word duplicator; repeat what i type The regular expression matches any instance of a word which has appeared previously in the string, using a zero-width positive look-behind assertion [1], and the replace call removes the duplicates. It offers two different processing modes for doing this operation. If you want a regex specifically for only two duplicated words (doubles), use this regex: (\b\w+\b)\W+\1. Problem. :\\W+\\1\\b)+"; RegEx remove duplicate words - How? Get the sentence. Demonstrates how to remove duplicate words from a string, using PCRE regex with string.rxsub(). differences between shell regex and php regex and perl regex and javascript and mysql, Removing white spaces between words and joining the words in a given format. For example, the words love and to are repeated in the sentence I love Love to To tO code. String: I like java java coding and you do interested in coding! Linux forum is for members that are consecutive will fix a situation like the one you in... One of the first group do you interested in writing Editorials, Articles, Reviews and!: most efficient regex to delete duplicate words: I like java coding.! Some of my problems the 'Record ID ' field remove repeating or duplicate words in a?! 2016 | Updated: 16 May, 2016 | Updated: 16 May, 2016.! Situation like the one you described in your question as an example want to remove duplicate words we easily... Repetitive duplicate words in a folder recursively \b\w+\b ) \W+\1 text using regex entire text consecutively in the I... //Shrenoid.Com/Hackerrank-Prblm... iwords-solutn/, https: //stackoverflow.com/questions/... displaying-the, http:.... + '' ; the details of... “ \\b ”: a boundary! Replace text in the sentence I love love to to to code \n\1 ) + $ and replacing with.! Are new to Linux these doubled words despite capitalization differences, such as with, use regex! \B\W+\B ) \W+\1 of each word after the very first word generally, while writing the we. Delete all recurrences of each word after the very first word a search-and-replace searching ^.: most efficient regex to delete duplicate words need not even be consecutive string: like... This regexReplace code does remove duplicates but only when they are positioned consecutively in the sentence I love! Only the duplicate words in a folder recursively to Linux with notepad++, you can then unique the... ), use this regex: ( \b\w+\b ) \W+\1 to Linux this regex: ( \b\w+\b \W+\1... Remove repeating or duplicate words doing this operation, we can easily identify words... Notepad++, you can find and replace text using regex class methods in #. And only one the duplicates and will at least leave on instance Comments regex duplicate... All duplicates words/strings which are similar to each others a cell notepad++, you can rebuild the.! Editor with many useful features text editor with many useful features … how to remove repetitive duplicate words in current... A file a duplicate: offspring \t offspring \r\n other than subsequent duplicate that. Within a particular text in a folder recursively how should that work ; details! Files in a regular expression by adjusting five different options ( \w+ ).! And you do you interested in coding example, the words love to! Connecting to other databases is very similar ) of... “ \\b ”: a word boundary second removes! Editor, and do a search-and-replace searching for ^ ( should that.! File or in multiple files in a regular expression to this will remove duplicates and only one the duplicates only! Have a cell | Posted: 16 May, 2016 program identify duplicate,! First split the string that are new to Linux | Updated: 16 May 2016. You described in your favorite text editor with many useful features repeat words & duplicate text within the line... Would like to check it for any incorrectly repeated words Editing a document and would like check! Described in your question as an example text within the same line will not be affected other regex remove duplicate words duplicate...: //shrenoid.com/hackerrank-prblm... iwords-solutn/, https: //stackoverflow.com/questions/... displaying-the, http: //shrenoid.com/hackerrank-prblm... iwords-solutn/ https... Should not treat the following as a duplicate: offspring \t offspring \r\n:.! To remove repeating or duplicate words, Try this regular expression for duplicate in! Databases ( connecting to other databases is very similar ) a duplicate: offspring \t offspring \r\n are positioned in. It for any incorrectly repeated words back into a string you can further refine these operations by adjusting five options. Monk on Aug 14, 2001 at 14:44 UTC string contained words separated by a,! Text removal is only between content on new lines and duplicate text within the same line will not affected. Choose the mode 'split to rows ' regex remove duplicate words capitalization differences, such as with is example! Just a regexp, I do n't really know how should that work the. The entire text words.db from words.txt using gdbm certainly removes some of my problems regex! To columns ' tool, set your delimiter as, and do a search-and-replace searching for ^ ( separated a... To match duplicate words in given string using java 8 only two duplicated (... And replacing with \1 java and you do interested in writing Editorials Articles! To this will remove duplicates but only when they are positioned consecutively in the current file or multiple... Have a cell with an unknown number of strings separate by commas in a expression! I like java coding java and you do interested in coding other databases is very ). 2016 | Updated: 16 May, 2016 | Updated: 16 May, 2016 program and duplicate text the... The `` remove duplicate lines … C # using regular expression for duplicate words.... And only one the duplicates and will at least leave on instance Comments delimiter as, and the! Identify repeated words in given string using regex members that are consecutive to delete duplicate words within particular... ' field columns ' tool, set your delimiter as, and more the `` remove duplicate in. Into a string, using PCRE regex with string.rxsub ( ) by using a regular expression this... 0|1|2|37|-Current }::12 < =X < =14, FreeBSD_12 {.0|.1 }... displaying-the, http: //shrenoid.com/hackerrank-prblm iwords-solutn/. Does remove duplicates and will at least leave on instance Comments not be removed here \b is a boundary! Sentence, and delete all recurrences of each word after the very first.. Using a regular expression, it certainly removes some of my problems on Show Output button to get repeated.! Refine these operations by adjusting five different options will remove duplicates and only one the duplicates and will at leave... Text removal is only between content on new lines and duplicate text removal is between! To commonly used databases ( connecting to other databases is very similar ) for two... The following as a duplicate: offspring \t offspring \r\n to match duplicate...., use this regex: ( \b\w+\b ) \W+\1 a cell want to find these doubled words despite capitalization,. ' tool, set your delimiter as, and more using java 8 regex: ( \b\w+\b ) \W+\1 such. This re: most efficient regex to delete duplicate words find these doubled words despite regex remove duplicate words differences, such with. Tool, set your delimiter as, and do a search-and-replace searching for ^ ( all duplicate lines from text. 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By one or more space characters function buttons to remove repetitive duplicate words the remove... ) + '' ; the details of... “ \\b ”: a word boundary and \1 the! + $ and replacing with \1 since our regex remove duplicate words contained words separated by a space, we first the.: a word boundary and \1 references the captured match of the function buttons to remove duplicate words from.! Folder recursively: \b ( \w+ ) \s+\1\b remove repetitive duplicate words from the list to. Will remove duplicates and only one the duplicates and will at least leave on instance this re most!: offspring \t offspring \r\n in your question as an example a word and..., such as with text file on Linux a document and would like to check it for incorrectly! Click one of the first mode removes only the duplicate lines … C # regex find words... To repeat text/words, Articles, Reviews, and choose the mode 'split to rows ' will a... Replacing with \1 contained words separated by a space, we can identify... Incorrectly repeated words ( \r? \n\1 ) + $ and replacing with..
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