dae/pkg/config_parser/config_parser.go

35 lines
941 B
Go

/*
* SPDX-License-Identifier: AGPL-3.0-only
* Copyright (c) 2022-2023, v2rayA Organization <team@v2raya.org>
*/
package config_parser
import (
"fmt"
"github.com/antlr/antlr4/runtime/Go/antlr/v4"
"github.com/v2rayA/dae-config-dist/go/dae_config"
)
func Parse(in string) (sections []*Section, err error) {
errorListener := NewConsoleErrorListener()
lexer := dae_config.Newdae_configLexer(antlr.NewInputStream(in))
lexer.RemoveErrorListeners()
lexer.AddErrorListener(errorListener)
input := antlr.NewCommonTokenStream(lexer, 0)
parser := dae_config.Newdae_configParser(input)
parser.RemoveErrorListeners()
parser.AddErrorListener(errorListener)
parser.BuildParseTrees = true
tree := parser.Start()
walker := NewWalker(parser)
antlr.ParseTreeWalkerDefault.Walk(walker, tree)
if errorListener.ErrorBuilder.Len() != 0 {
return nil, fmt.Errorf("%v", errorListener.ErrorBuilder.String())
}
return walker.Sections, nil
}