fd76f090a2
* markup: microoptimise for many short filenames in directory Move strings.ToLower() after the early-return length check. This is a safe operation in all cases and should slightly improve directory listing performance when a directory contains many thousands of files with short filenames. * markup: expand test cases for IsReadmeFile()
84 lines
2.4 KiB
Go
84 lines
2.4 KiB
Go
// Copyright 2017 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package markup
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import (
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"path/filepath"
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"strings"
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)
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// Parser defines an interface for parsering markup file to HTML
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type Parser interface {
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Name() string // markup format name
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Extensions() []string
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Render(rawBytes []byte, urlPrefix string, metas map[string]string, isWiki bool) []byte
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}
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var (
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parsers = make(map[string]Parser)
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)
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// RegisterParser registers a new markup file parser
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func RegisterParser(parser Parser) {
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for _, ext := range parser.Extensions() {
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parsers[strings.ToLower(ext)] = parser
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}
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}
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// Render renders markup file to HTML with all specific handling stuff.
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func Render(filename string, rawBytes []byte, urlPrefix string, metas map[string]string) []byte {
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return render(filename, rawBytes, urlPrefix, metas, false)
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}
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func render(filename string, rawBytes []byte, urlPrefix string, metas map[string]string, isWiki bool) []byte {
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extension := strings.ToLower(filepath.Ext(filename))
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if parser, ok := parsers[extension]; ok {
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return parser.Render(rawBytes, urlPrefix, metas, isWiki)
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}
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return nil
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}
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// RenderString renders Markdown to HTML with special links and returns string type.
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func RenderString(filename string, raw, urlPrefix string, metas map[string]string) string {
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return string(render(filename, []byte(raw), urlPrefix, metas, false))
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}
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// RenderWiki renders markdown wiki page to HTML and return HTML string
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func RenderWiki(filename string, rawBytes []byte, urlPrefix string, metas map[string]string) string {
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return string(render(filename, rawBytes, urlPrefix, metas, true))
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}
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// Type returns if markup format via the filename
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func Type(filename string) string {
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extension := strings.ToLower(filepath.Ext(filename))
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if parser, ok := parsers[extension]; ok {
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return parser.Name()
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}
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return ""
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}
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// ReadmeFileType reports whether name looks like a README file
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// based on its name and find the parser via its ext name
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func ReadmeFileType(name string) (string, bool) {
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if IsReadmeFile(name) {
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return Type(name), true
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}
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return "", false
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}
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// IsReadmeFile reports whether name looks like a README file
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// based on its name.
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func IsReadmeFile(name string) bool {
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if len(name) < 6 {
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return false
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}
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name = strings.ToLower(name)
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if len(name) == 6 {
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return name == "readme"
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}
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return name[:7] == "readme."
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}
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