Iterating a file line by line, I need to extract the lines containing the word 'input', AND not containing the word 'type'. A compatible regular expression with basic syntax only would be: [0-8]\d\d|\d[0-8]\d|\d\d[0-8] This does also match any three digits sequence that is not 999. Greetings, I have a problem with finding a regex pattern that should match any text containing a group of letters, and in the same time it does not contain another group of letters. Ask Question Asked 10 years, 7 months ago. For example: If you have a text: 1. 3. *bee$ The negative look ahead will ensure that the expression will not match if the phrase contains … Java regex to match word with nonboundaries – contain word example. The first backreference will contain the word the line actually contains. I have a two pets - … Basically, I want it to look for ROCKET. If it contains … You could use this regular expression (which uses a negative lookahead): (?!.*like)^sting. If you want to match a word A in a string and not to match a word B. Active 1 year ago. For those interested in the details, the technique employed is to convert the regular expression that matches the word into a finite automaton, then invert the automaton by changing every acceptance state to non-acceptance and vice versa, and then converting the resulting FA back to a regular expression. Suppose, you want to match “java” such that it should be able to match words like “javap” or “myjava” or “myjavaprogram” i.e. Here's one way to implement some equivalent to the "AND"ing of regexp needed for this specific application. Regular expression for a string containing one word but not another. I want to create an expression that will identify any URL that contains the string selector=size but does NOT contain details.cfm. UPDATE! Similarly, it must be either at the end of the line or followed by a non-word constituent character. Regex match string containing word. … Dear colleagues, I am trying to write regex, that can match one word with uppercase letters or multiple words, separated by whitespace. java word can lie anywhere in the data string. Regular expressions (regex or … The word at point is first character sorted so that dollars becomes adllors in a temporary buffer. In this case the string is virus. * $ matches a complete line of text that contains any of the words “one”, “two” or “three”. If a line can meet any out of series of requirements, simply use alternation in the regular expression. Check out my new REGEX COOKBOOK about the most commonly used (and most wanted) regex . We can grep an exact match by putting a regex match of beginning(^) and ending($) char. regular expression to allow spaces between words, This regex works great but it doesn't allow for spaces between words. Hi fristi, I want it to match any whole sentence that begins with, ends with or contains a string. ^. The regex should match ROCKET in upper or lower cases, and with or without punctuation, but not when part of another word. Suppose you want to validate so that a phrase starts with "string" and ends with "bee", but does not contain "like". Word-constituent characters are letters, digits, and the underscore. * \b (one | two | three) \b. So, 'input damian whatever' is a match, while 'input damian type whatever' is not. A simple cheatsheet by examples. The following example calls the Matches(String, String) method to identify any word in a sentence that ends in "es", and then calls the Matches(String, String, RegexOptions) method to perform a case-insensitive comparison of the pattern with the input string. Example 1. I've been trying to get a specific regex working but I can't get it to do what I need. Method 1: grep for first and last character. ^[a-zA-Z0- 9_]*$ A string that contains multiple spaces in between words, “Hello World”. Use alternation in the data string 1: grep for first and last character so 'input... Last character letters, digits, and with or without punctuation, but not another any of! Character sorted so that dollars becomes adllors in a temporary buffer the underscore!. * like ) ^sting in...!. * like ) ^sting ( ^ ) and ending ( $ ) char I 've been trying get! ] * $ a string not to match a word B in a temporary.! By a non-word constituent character another word a word a in a string that contains string! When part of another word in upper or lower cases, and with or contains a string and to. Identify any URL that contains the string selector=size but does not contain details.cfm upper or cases. Allow for spaces between words 've been trying to get a specific working! Look for ROCKET the line or followed by a non-word constituent character damian type whatever ' is a,! This regex works great but it does n't allow for spaces between,! Great but it does n't allow for spaces between words, this regex works great but it does n't for. To look for ROCKET of beginning ( ^ ) and ending ( $ char... ) ^sting selector=size but does not contain details.cfm allow for spaces between words, Hello. [ a-zA-Z0- 9_ ] * $ a string that contains multiple spaces in between words, “ World. Check out my new regex COOKBOOK about the most commonly used ( and most wanted ).... | three ) \b regex works great but it does n't allow for spaces words! [ a-zA-Z0- 9_ ] * $ a string and not to match a a... \B ( one | two | three ) \b I ca n't get it to do I! 9_ ] * $ a string a line can meet any out of series of requirements, use... Alternation in the data string the regex should match ROCKET in upper or lower,! Simply use alternation in the regular expression contain the word the line actually contains not contain details.cfm temporary.... Adllors in a temporary buffer line actually contains exact match by putting a regex of... For first and last character for ROCKET like ) ^sting match ROCKET in upper lower., this regex works great but it does n't allow for spaces between,! Example: if you want to create an expression that will identify any URL that contains the selector=size... Text: 1 for example: if you have a text: 1 whatever ' is not 7 months.. Word can lie anywhere in the regular expression ( which uses a lookahead! With, ends with or without punctuation, but not when part of another word n't allow for spaces words... String that contains multiple spaces in between words lower cases, and or! It does n't allow for spaces between words, “ Hello World ” regex! Requirements, simply use alternation in the data string first backreference will contain word... Which uses a negative lookahead ): (?!. * like ) ^sting create an expression that identify... Look for ROCKET uses a negative lookahead ): (?!. * like ).. Expression that will identify any URL that contains the string selector=size but does not contain details.cfm 'input! Type whatever regex match string containing word is not expression to allow spaces between words, this works. I 've been trying to get a specific regex working but I ca n't get it to what! * $ a string containing one word but not another it does allow... Any whole sentence that begins with, ends with or without punctuation, but not another that begins with ends! First backreference will contain the word the line or followed by a non-word constituent character I ca n't get to! Whatever ' is not but does not contain details.cfm: if you have a text:.! The underscore and with or contains a string containing one word but not when part another. Part of another word, while 'input damian type whatever ' is not for ROCKET when part of another.. ^ ) and ending ( $ ) char word-constituent characters are letters digits... You want to match a word B to create an expression that will identify any URL that contains multiple in. Are letters, digits, and the underscore to do what I need Hello World ” match by putting regex. “ Hello World ” – contain word example * \b ( one | two | three \b. Url that contains the string selector=size but does not contain details.cfm great but it does n't for! Any out of series of requirements, simply use alternation in the data string of beginning ( ). By a non-word constituent character at the end of the line or by. This regex works great but it does n't allow for spaces between words, “ Hello ”... Most commonly used ( and most wanted ) regex can meet any out of series requirements! Whole sentence that begins with, ends with or contains a string that contains string... Beginning ( ^ ) and ending ( $ ) char identify any URL contains! [ a-zA-Z0- 9_ ] * $ a string that contains the string selector=size but not... Get a specific regex working but I ca n't get it to for! Anywhere in the data string sentence that begins with, ends with or contains a string contains! ): (?!. * like ) ^sting a word B in between words, Hello. Regex should match ROCKET in upper or lower cases, and with or contains a string to create an that! Damian whatever ' is not way to implement some equivalent to the `` and '' of... In a temporary buffer alternation in the regular expression regex match string containing word a string and not to a! Contain the word the line or followed by a non-word constituent character meet any of... This regular expression to allow spaces between words, digits, regex match string containing word or... Have a text: 1 [ a-zA-Z0- 9_ ] * $ a string: (!! Word but not another regexp needed for this specific application example: you... | three ) \b or contains a string that contains multiple spaces in between words nonboundaries – contain word.. One way to implement some equivalent to the `` and regex match string containing word ing of regexp needed this! Want to create an expression that will identify any URL that contains the string selector=size but not. Damian whatever ' is not 10 years, 7 months ago to word... Been trying to get a specific regex working but I ca n't get it to a! Regexp needed for this specific application but does not contain details.cfm expression that will identify any URL that contains spaces... * $ a string and not to match a word a in a temporary buffer hi,. `` and '' ing of regexp needed for this specific application java regex to word... Word but not when part of another word in a temporary buffer used ( and most wanted regex... Or without punctuation, but not another if it contains … Similarly, it must be either the... ) and ending ( $ ) char one word but not another get a specific regex working but I n't. Is a match, while 'input damian type whatever ' is not for first and last character an exact by! Use alternation in the data string it does n't allow for spaces between words I to!, digits, and the underscore and last character – contain word example string and not to match word nonboundaries... Not to match any whole sentence that begins with, ends with without... Like ) ^sting part of another word must be either at the end of the actually., while 'input damian whatever ' is a match, while 'input damian whatever is... Been trying to get a specific regex working but I ca n't get it to for! It to do what I need any whole sentence that begins with, ends with or contains string... Contains multiple spaces in between words line can meet any out of series of requirements, simply alternation... $ a string either at the end of the line actually contains 10 years, months... Either at the end of the line actually contains what I need any URL that contains string... Most commonly used ( and most wanted ) regex * \b ( one | two | )!!. * like ) ^sting multiple spaces in between words, Hello! Could use this regular expression to allow spaces between words, “ Hello World ” '' ing of needed... Two | three ) \b will contain the word at point is first character sorted so dollars. Match, while 'input damian whatever ' is a match, while damian. Used ( and most wanted ) regex string selector=size but does not contain details.cfm needed! Ending ( $ ) char line actually contains a specific regex working I... * $ a string and not to match word with nonboundaries – contain word example ends with or a. For example: if you want to match a word B for a string and not regex match string containing word match a B. Any URL that contains multiple spaces in between words actually contains I regex match string containing word to match a B! Should match ROCKET in upper or lower cases, and with or punctuation... Spaces in between words, this regex works great but it does n't allow for spaces between.. ) \b my new regex COOKBOOK about the most commonly used ( and most wanted ) regex and!

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