removing-whitespace

c# Fastest way to remove extra white spaces

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The fastest way? Iterate over the string and build a second copy in a StringBuilder character by character, only copying one space for each group of spaces. The easier to type Replace variants will create a bucket load of extra strings (or waste time building the regex DFA). Edit with comparison results: Using http://ideone.com/NV6EzU, with … Read more

Remove the Extra Whitespace Surrounding Iframes?

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Having just seen your fiddle your issue is because you are using display:inline-block. This takes whitespace in your html into account. display:inline-block is notorious for being difficult and has dodgy browser support. Option 1: Try removing the white space in your html can sometimes sort the problem. Option 2: Using a different display property such … Read more

In Haskell, how do you trim whitespace from the beginning and end of a string?

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If you have serious text processing needs then use the text package from hackage: > :set -XOverloadedStrings > import Data.Text > strip ” abc ” “abc” If you’re too stubborn to use text and don’t like the inefficiency of the reverse method then perhaps (and I mean MAYBE) something like the below will be more … Read more

Optional Whitespace Regex

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Add a \s? if a space can be allowed. \s stands for white space ? says the preceding character may occur once or not occur. If more than one spaces are allowed and is optional, use \s*. * says preceding character can occur zero or more times. ‘#<a href\s?=”https://stackoverflow.com/questions/14293024/(.*?)” title\s?=”https://stackoverflow.com/questions/14293024/(.*?)”><img alt\s?=”https://stackoverflow.com/questions/14293024/(.*?)” src\s?=”https://stackoverflow.com/questions/14293024/(.*?)”[\s*]width\s?=”150″[\s*]height\s?=”https://stackoverflow.com/questions/14293024/(.*?)”></a>#’ allows an optional … Read more

How to remove trailing whitespaces for multiple files?

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You want sed –in-place ‘s/[[:space:]]\+$//’ file That will delete all POSIX standard defined whitespace characters, including vertical tab and form feed. Also, it will only do a replacement if the trailing whitespace actually exists, unlike the other answers that use the zero or more matcher (*). –in-place is simply the long form of -i. I … Read more

How do I split a string by whitespace and ignoring leading and trailing whitespace into an array of words using a regular expression?

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If you are more interested in the bits that are not whitespace, you can match the non-whitespace instead of splitting on whitespace. ” The quick brown fox jumps over the lazy dog. “.match(/\S+/g); Note that the following returns null: ” “.match(/\S+/g) So the best pattern to learn is: str.match(/\S+/g) || []

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