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    Question RegExp: Partial matches

    RegExp: Partial matches


    Is there anyone that knows a library in JS that supports partial RegExp matching. For example, where /allo/.test('all') would return true. That would allow doing dynamic input validation while the user is typing simply by defining a regex pattern.

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    Could you explain a little more about what you mean? From your example it isn't clear why you'd want to use a RegExp. Would there be a list of acceptable values? Strikes me that with a few lines of code you could come with something that converts a list of values into a starts-with RegExp.

    Your use case sounds like a ComboBox with forceSelection: true, typeAhead: true and hideTrigger: true.

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    Hi,

    No, there would not be any ways of having a list of values. Partial regex matching can be used to enforce specific masks on input. For example, I could write a regex that validates postal codes. Then, with a partial match (could possibly match), I would be able to validate the use input while he's typing. It's always possible to modify the regex so that it does what I need, but that adds a lot of complexity into it and it's not a generic solution. I know that there are librairies that supports input masking, but not with plain regexs. I already did a simple implementation that works with really basic regexs. It will basically do a mutation of full regex while you type, but it doesn't work with advanced regex patterns and it would require a lot of effort to do so...

    What I mean is something like this but for JS: http://www.boost.org/doc/libs/1_34_1/libs/regex/doc/partial_matches.html



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    Quote Originally Posted by mitchellsimoens View Post
    Sorry... Could you move it to the right forum? Thanks

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    Quote Originally Posted by scarsick View Post
    Sorry... Could you move it to the right forum? Thanks
    Sure, which one would you like?
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    Q&A I guess?

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    Quote Originally Posted by scarsick View Post
    Q&A I guess?
    of which framework?
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    I see your point, it's not really directly related to any sencha features, that's why I posted in the community discussion forum.
    Now if you think it shouldn't be here, you are free to delete the post.

    Thanks.

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