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cc0d636381
Fixes #1116 Also fixes an issue where links wouldn't create properly across multiple nodes This was due to a bug in the `select` method. We use the DOM Range API to more robustly select a node.
61 lines
2.7 KiB
CoffeeScript
61 lines
2.7 KiB
CoffeeScript
_ = require('underscore')
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RegExpUtils =
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# It's important that the regex be wrapped in parens, otherwise
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# javascript's RegExp::exec method won't find anything even when the
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# regex matches!
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#
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# It's also imporant we return a fresh copy of the RegExp every time. A
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# javascript regex is stateful and multiple functions using this method
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# will cause unexpected behavior!
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#
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# See http://tools.ietf.org/html/rfc5322#section-3.4 and
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# https://tools.ietf.org/html/rfc6531 and
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# https://en.wikipedia.org/wiki/Email_address#Local_part
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emailRegex: -> new RegExp(/([a-z.A-Z0-9!#$%&'*+\-/=?^_`{|}~;:]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,63})/g)
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# http://stackoverflow.com/a/16463966
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# http://www.regexpal.com/?fam=93928
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# NOTE: This does not match full urls with `http` protocol components.
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domainRegex: -> new RegExp(/^(?!:\/\/)([a-zA-Z0-9-_]+\.)*[a-zA-Z0-9][a-zA-Z0-9-_]+\.[a-zA-Z]{2,11}?/i)
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# Test cases: https://regex101.com/r/pD7iS5/2
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# http://daringfireball.net/2010/07/improved_regex_for_matching_urls
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# https://mathiasbynens.be/demo/url-regex
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# This is the Gruber Regex.
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urlRegex: -> new RegExp(/^\b((?:https?:\/\/|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))$/)
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# https://regex101.com/r/zG7aW4/3
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imageTagRegex: -> /<img\s+[^>]*src="([^"]*)"[^>]*>/g
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punctuation: ({exclude}={}) ->
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exclude ?= []
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punctuation = [ '.', ',', '\\/', '#', '!', '$', '%', '^', '&', '*',
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';', ':', '{', '}', '=', '\\-', '_', '`', '~', '(', ')', '@', '+',
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'?', '>', '<', '\\[', '\\]', '+' ]
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punctuation = _.difference(punctuation, exclude).join('')
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return new RegExp("[#{punctuation}]", 'g')
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# This tests for valid schemes as per RFC 3986
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# We need both http: https: and mailto: and a variety of other schemes.
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# This does not check for invalid usage of the http: scheme. For
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# example, http:bad.com would pass. We do not check for
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# protocol-relative uri's.
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#
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# Regex explanation here: https://regex101.com/r/nR2yL6/2
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# See RFC here: https://tools.ietf.org/html/rfc3986#section-3.1
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# SO discussion: http://stackoverflow.com/questions/10687099/how-to-test-if-a-url-string-is-absolute-or-relative/31991870#31991870
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hasValidSchemeRegex: -> new RegExp('^[a-z][a-z0-9+.-]*:', 'i')
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looseStyleTag: -> /<style/gim
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# Regular expression matching javasript function arguments:
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# https://regex101.com/r/pZ6zF0/1
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functionArgs: -> /\(\s*([^)]+?)\s*\)/
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illegalPathCharactersRegexp: ->
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#https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx
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/[\\\/:|?*><"]/g
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module.exports = RegExpUtils
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