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35 lines
1.1 KiB
35 lines
1.1 KiB
5 years ago
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package cmd
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/*
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Copyright © 2020 Jean-Marc Meessen, ON4KJM <on4kjm@gmail.com>
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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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,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import (
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"regexp"
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"strings"
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)
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var validWwffRegexp = regexp.MustCompile(`^[\d]{0,1}[A-Z]{1,2}FF-[\d]{4}$`)
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// ValidateWwff verifies whether the supplied string is a valid WWFF reference.
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// The syntax is: AAFF-CCCC: AA = national prefix, CCCC = 4-digit numeric code (e.g. ONFF-0001).
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func ValidateWwff(inputStr string) (ref, errorMsg string) {
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inputStr = strings.ToUpper(strings.TrimSpace(inputStr))
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wrongInputStr := "*" + inputStr
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if validWwffRegexp.MatchString(inputStr) {
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return inputStr, ""
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}
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return wrongInputStr, "Invalid WWFF reference"
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}
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