72 lines
1.9 KiB
Go
72 lines
1.9 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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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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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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*/
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package main
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import (
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"fmt"
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"regexp"
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"strings"
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)
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var headerRegex = regexp.MustCompile(`^(#+)\s*(.*)$`)
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var whitespaceRegex = regexp.MustCompile(`^\s*$`)
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func fixHeaderLines(fileBytes []byte) []byte {
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lines := splitLines(fileBytes)
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out := []string{}
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for i := range lines {
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matches := headerRegex.FindStringSubmatch(lines[i])
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if matches == nil {
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out = append(out, lines[i])
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continue
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}
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if i > 0 && !whitespaceRegex.Match([]byte(out[len(out)-1])) {
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out = append(out, "")
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}
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out = append(out, fmt.Sprintf("%s %s", matches[1], matches[2]))
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if i+1 < len(lines) && !whitespaceRegex.Match([]byte(lines[i+1])) {
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out = append(out, "")
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}
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}
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final := strings.Join(out, "\n")
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// Preserve the end of the file.
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if len(fileBytes) > 0 && fileBytes[len(fileBytes)-1] == '\n' {
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final += "\n"
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}
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return []byte(final)
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}
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// Header lines need whitespace around them and after the #s.
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func checkHeaderLines(filePath string, fileBytes []byte) ([]byte, error) {
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fbs := splitByPreformatted(fileBytes)
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fbs = append([]fileBlock{{false, []byte{}}}, fbs...)
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fbs = append(fbs, fileBlock{false, []byte{}})
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for i := range fbs {
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block := &fbs[i]
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if block.preformatted {
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continue
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}
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block.data = fixHeaderLines(block.data)
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}
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output := []byte{}
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for _, block := range fbs {
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output = append(output, block.data...)
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}
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return output, nil
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}
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