hugo line_number_extractors 代码
文件路径：/common/herrors/line_number_extractors.go
/ Copyright 2018 The Hugo Authors. All rights reserved.
/
/ 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 herrors
import (
"regexp"
"strconv"
)
var lineNumberExtractors = []lineNumberExtractor{
/ Template/shortcode parse errors
newLineNumberErrHandlerFromRegexp(`:(\d+):(\d*):`),
newLineNumberErrHandlerFromRegexp(`:(\d+):`),
/ YAML parse errors
newLineNumberErrHandlerFromRegexp(`line (\d+):`),
/ i18n bundle errors
newLineNumberErrHandlerFromRegexp(`\((\d+),\s(\d*)`),
}
type lineNumberExtractor func(e error) (int, int)
func newLineNumberErrHandlerFromRegexp(expression string) lineNumberExtractor {
re := regexp.MustCompile(expression)
return extractLineNo(re)
}
func extractLineNo(re *regexp.Regexp) lineNumberExtractor {
return func(e error) (int, int) {
if e == nil {
panic("no error")
}
col := 1
s := e.Error()
m := re.FindStringSubmatch(s)
if len(m) >= 2 {
lno, _ := strconv.Atoi(m[1])
if len(m) > 2 {
col, _ = strconv.Atoi(m[2])
}
if col <= 0 {
col = 1
}
return lno, col
}
return 0, col
}
}