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// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package hclwrite
import (
"bytes"
"github.com/hashicorp/hcl/v2"
)
// NewFile creates a new file object that is empty and ready to have constructs
// added t it.
func NewFile() *File {
body := &Body{
inTree: newInTree(),
items: newNodeSet(),
}
file := &File{
inTree: newInTree(),
}
file.body = file.inTree.children.Append(body)
return file
}
// ParseConfig interprets the given source bytes into a *hclwrite.File. The
// resulting AST can be used to perform surgical edits on the source code
// before turning it back into bytes again.
func ParseConfig(src []byte, filename string, start hcl.Pos) (*File, hcl.Diagnostics) {
return parse(src, filename, start)
}
// Format takes source code and performs simple whitespace changes to transform
// it to a canonical layout style.
//
// Format skips constructing an AST and works directly with tokens, so it
// is less expensive than formatting via the AST for situations where no other
// changes will be made. It also ignores syntax errors and can thus be applied
// to partial source code, although the result in that case may not be
// desirable.
func Format(src []byte) []byte {
tokens := lexConfig(src)
format(tokens)
buf := &bytes.Buffer{}
tokens.WriteTo(buf)
return buf.Bytes()
}
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