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util.go
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util.go
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// Copyright 2021 CloudWeGo Authors
//
// 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 parser
import (
"fmt"
"os"
"path/filepath"
"strings"
)
func normalizeFilename(fn string) string {
abs, err := filepath.Abs(fn)
if err != nil {
return fn
}
base, err := os.Getwd()
if err != nil {
return abs
}
ref, err := filepath.Rel(base, abs)
if err != nil {
return abs
}
return ref
}
func refName(filename string) string {
n := strings.Split(filepath.Base(filename), ".")
return strings.Join(n[:len(n)-1], ".")
}
func addField(fields []*Field, field *Field) []*Field {
if field.ID == NOTSET {
if len(fields) > 0 {
field.ID = fields[len(fields)-1].ID + 1
} else {
field.ID = 1
}
}
return append(fields, field)
}
func checkrule(node *node32, rule pegRule) (*node32, error) {
if node.pegRule != rule {
return nil, fmt.Errorf("mismatch rule: " + rul3s[node.pegRule])
}
return node.up, nil
}