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56 lines
1.8 KiB
56 lines
1.8 KiB
// Copyright 2013 com authors |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"): you may |
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// not use this file except in compliance with the License. You may obtain |
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// a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
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// License for the specific language governing permissions and limitations |
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// under the License. |
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package com |
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import "regexp" |
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const ( |
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regex_email_pattern = `(?i)[A-Z0-9._%+-]+@(?:[A-Z0-9-]+\.)+[A-Z]{2,6}` |
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regex_strict_email_pattern = `(?i)[A-Z0-9!#$%&'*+/=?^_{|}~-]+` + |
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`(?:\.[A-Z0-9!#$%&'*+/=?^_{|}~-]+)*` + |
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`@(?:[A-Z0-9](?:[A-Z0-9-]*[A-Z0-9])?\.)+` + |
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`[A-Z0-9](?:[A-Z0-9-]*[A-Z0-9])?` |
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regex_url_pattern = `(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?` |
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) |
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var ( |
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regex_email *regexp.Regexp |
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regex_strict_email *regexp.Regexp |
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regex_url *regexp.Regexp |
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) |
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func init() { |
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regex_email = regexp.MustCompile(regex_email_pattern) |
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regex_strict_email = regexp.MustCompile(regex_strict_email_pattern) |
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regex_url = regexp.MustCompile(regex_url_pattern) |
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} |
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// validate string is an email address, if not return false |
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// basically validation can match 99% cases |
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func IsEmail(email string) bool { |
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return regex_email.MatchString(email) |
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} |
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// validate string is an email address, if not return false |
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// this validation omits RFC 2822 |
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func IsEmailRFC(email string) bool { |
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return regex_strict_email.MatchString(email) |
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} |
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// validate string is a url link, if not return false |
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// simple validation can match 99% cases |
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func IsUrl(url string) bool { |
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return regex_url.MatchString(url) |
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}
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