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bufref.go
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bufref.go
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// Copyright 2020-2022 Buf Technologies, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package bufref
import (
"strings"
)
// GetRawPathAndOptions returns the raw path and options from the value provided,
// the rawPath will be non-empty when returning without error here.
func GetRawPathAndOptions(value string) (string, map[string]string, error) {
value = strings.TrimSpace(value)
if value == "" {
return "", nil, newValueEmptyError()
}
switch splitValue := strings.Split(value, "#"); len(splitValue) {
case 1:
return value, nil, nil
case 2:
path := strings.TrimSpace(splitValue[0])
optionsString := strings.TrimSpace(splitValue[1])
if path == "" {
return "", nil, newValueStartsWithHashtagError(value)
}
if optionsString == "" {
return "", nil, newValueEndsWithHashtagError(value)
}
options := make(map[string]string)
for _, pair := range strings.Split(optionsString, ",") {
split := strings.Split(pair, "=")
if len(split) != 2 {
return "", nil, newOptionsInvalidError(optionsString)
}
key := strings.TrimSpace(split[0])
value := strings.TrimSpace(split[1])
if key == "" || value == "" {
return "", nil, newOptionsInvalidError(optionsString)
}
if _, ok := options[key]; ok {
return "", nil, newOptionsDuplicateKeyError(key)
}
options[key] = value
}
return path, options, nil
default:
return "", nil, newValueMultipleHashtagsError(value)
}
}