78 lines
1.8 KiB
Go
78 lines
1.8 KiB
Go
// Copyright 2018 The Hugo Authors. All rights reserved.
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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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// 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 herrors
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import (
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"regexp"
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"strconv"
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"github.com/pkg/errors"
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"github.com/pelletier/go-toml/v2"
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)
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var lineNumberExtractors = []lineNumberExtractor{
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// Template/shortcode parse errors
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newLineNumberErrHandlerFromRegexp(".*:(\\d+):(\\d*):"),
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newLineNumberErrHandlerFromRegexp(".*:(\\d+):"),
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// TOML parse errors
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tomlLineNumberExtractor,
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// YAML parse errors
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newLineNumberErrHandlerFromRegexp("line (\\d+):"),
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// i18n bundle errors
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newLineNumberErrHandlerFromRegexp("\\((\\d+),\\s(\\d*)"),
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}
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type lineNumberExtractor func(e error) (int, int)
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var tomlLineNumberExtractor = func(e error) (int, int) {
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e = errors.Cause(e)
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if terr, ok := e.(*toml.DecodeError); ok {
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return terr.Position()
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}
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return -1, -1
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}
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func newLineNumberErrHandlerFromRegexp(expression string) lineNumberExtractor {
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re := regexp.MustCompile(expression)
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return extractLineNo(re)
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}
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func extractLineNo(re *regexp.Regexp) lineNumberExtractor {
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return func(e error) (int, int) {
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if e == nil {
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panic("no error")
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}
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col := 1
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s := e.Error()
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m := re.FindStringSubmatch(s)
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if len(m) >= 2 {
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lno, _ := strconv.Atoi(m[1])
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if len(m) > 2 {
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col, _ = strconv.Atoi(m[2])
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}
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if col <= 0 {
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col = 1
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}
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return lno, col
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}
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return -1, col
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}
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}
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