wstl1/mapping_language/errors/tokenutil.go

// Copyright 2019 Google LLC
//
// 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 errors

import (
	"regexp"
	"strings"
)

var tokenRE = regexp.MustCompile(`^[^\s]+`)

func nextToken(code string, line, col int) string {
	code = strings.Split(code, "\n")[line-1][col:]
	if token := tokenRE.FindString(code); token != "" {
		return token
	}

	return code
}