mirror of
https://github.com/yunionio/cloudpods.git
synced 2026-05-09 15:17:23 +08:00
50 lines
1.3 KiB
Go
50 lines
1.3 KiB
Go
// Copyright 2019 Yunion
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//
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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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//
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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,
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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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package conditionparser
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import (
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"regexp"
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"strings"
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"yunion.io/x/pkg/errors"
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)
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var (
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tempPattern = regexp.MustCompile(`\$\{[\w\d._-]*\}`)
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)
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func IsTemplate(template string) bool {
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return tempPattern.MatchString(template)
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}
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func EvalTemplate(template string, input interface{}) (string, error) {
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var output strings.Builder
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matches := tempPattern.FindAllStringSubmatchIndex(template, -1)
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offset := 0
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for _, match := range matches {
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output.WriteString(template[offset:match[0]])
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o, err := EvalString(template[match[0]+2:match[1]-1], input)
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if err != nil {
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return "", errors.Wrap(err, template[match[0]+2:match[1]])
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}
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output.WriteString(o)
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offset = match[1]
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}
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if offset < len(template) {
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output.WriteString(template[offset:])
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}
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return output.String(), nil
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}
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