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I am trying to make a ruby regex to match tags in the format Toys, Cars, Some Other Topic but I can't figure out how to make it so that it splits it at after a comma and white space after but not if there is whitespace in a tag
This is what I have come up with http://rubular.com/r/ptjeQ1KyoD but is wrong for now.
/[\/,$\(\s+)]/
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The 0-9 indicates characters 0 through 9, the comma , indicates comma, and the semicolon indicates a ; . The closing ] indicates the end of the character set. The plus + indicates that one or more of the "previous item" must be present.
The word boundary \b matches positions where one side is a word character (usually a letter, digit or underscore—but see below for variations across engines) and the other side is not a word character (for instance, it may be the beginning of the string or a space character).
In regex, the uppercase metacharacter denotes the inverse of the lowercase counterpart, for example, \w for word character and \W for non-word character; \d for digit and \D or non-digit. The above regex matches two words (without white spaces) separated by one or more whitespaces.
Example: The regex "aa\n" tries to match two consecutive "a"s at the end of a line, inclusive the newline character itself. Example: "a\+" matches "a+" and not a series of one or "a"s. ^ the caret is the anchor for the start of the string, or the negation symbol.
You can just use /,\s*/ (which is much simpler than what you've got!):
'Toys, Cars, Some Other Topic'.split /,\s*/
=> ["Toys", "Cars", "Some Other Topic"]
You should just use:
,\s+
This matches all commas followed by one or more whitespace characters, and doesn't match the spaces beyond Some.
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