mirror of
https://github.com/go-gitea/gitea
synced 2024-11-18 07:52:03 +01:00
128 lines
3.9 KiB
Go
128 lines
3.9 KiB
Go
// Copyright 2017 The Gitea Authors. All rights reserved.
|
|
// Use of this source code is governed by a MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package markup
|
|
|
|
import (
|
|
"path/filepath"
|
|
"strings"
|
|
|
|
"code.gitea.io/gitea/modules/log"
|
|
)
|
|
|
|
// Init initialize regexps for markdown parsing
|
|
func Init() {
|
|
getIssueFullPattern()
|
|
NewSanitizer()
|
|
}
|
|
|
|
// Parser defines an interface for parsering markup file to HTML
|
|
type Parser interface {
|
|
Name() string // markup format name
|
|
Extensions() []string
|
|
Render(rawBytes []byte, urlPrefix string, metas map[string]string, isWiki bool) []byte
|
|
}
|
|
|
|
var (
|
|
extParsers = make(map[string]Parser)
|
|
parsers = make(map[string]Parser)
|
|
)
|
|
|
|
// RegisterParser registers a new markup file parser
|
|
func RegisterParser(parser Parser) {
|
|
parsers[parser.Name()] = parser
|
|
for _, ext := range parser.Extensions() {
|
|
extParsers[strings.ToLower(ext)] = parser
|
|
}
|
|
}
|
|
|
|
// GetParserByFileName get parser by filename
|
|
func GetParserByFileName(filename string) Parser {
|
|
extension := strings.ToLower(filepath.Ext(filename))
|
|
return extParsers[extension]
|
|
}
|
|
|
|
// GetParserByType returns a parser according type
|
|
func GetParserByType(tp string) Parser {
|
|
return parsers[tp]
|
|
}
|
|
|
|
// Render renders markup file to HTML with all specific handling stuff.
|
|
func Render(filename string, rawBytes []byte, urlPrefix string, metas map[string]string) []byte {
|
|
return renderFile(filename, rawBytes, urlPrefix, metas, false)
|
|
}
|
|
|
|
// RenderByType renders markup to HTML with special links and returns string type.
|
|
func RenderByType(tp string, rawBytes []byte, urlPrefix string, metas map[string]string) []byte {
|
|
return renderByType(tp, rawBytes, urlPrefix, metas, false)
|
|
}
|
|
|
|
// RenderString renders Markdown to HTML with special links and returns string type.
|
|
func RenderString(filename string, raw, urlPrefix string, metas map[string]string) string {
|
|
return string(renderFile(filename, []byte(raw), urlPrefix, metas, false))
|
|
}
|
|
|
|
// RenderWiki renders markdown wiki page to HTML and return HTML string
|
|
func RenderWiki(filename string, rawBytes []byte, urlPrefix string, metas map[string]string) string {
|
|
return string(renderFile(filename, rawBytes, urlPrefix, metas, true))
|
|
}
|
|
|
|
func render(parser Parser, rawBytes []byte, urlPrefix string, metas map[string]string, isWiki bool) []byte {
|
|
urlPrefix = strings.Replace(urlPrefix, " ", "+", -1)
|
|
result := parser.Render(rawBytes, urlPrefix, metas, isWiki)
|
|
// TODO: one day the error should be returned.
|
|
result, err := PostProcess(result, urlPrefix, metas, isWiki)
|
|
if err != nil {
|
|
log.Error(3, "PostProcess: %v", err)
|
|
}
|
|
return SanitizeBytes(result)
|
|
}
|
|
|
|
func renderByType(tp string, rawBytes []byte, urlPrefix string, metas map[string]string, isWiki bool) []byte {
|
|
if parser, ok := parsers[tp]; ok {
|
|
return render(parser, rawBytes, urlPrefix, metas, isWiki)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func renderFile(filename string, rawBytes []byte, urlPrefix string, metas map[string]string, isWiki bool) []byte {
|
|
extension := strings.ToLower(filepath.Ext(filename))
|
|
if parser, ok := extParsers[extension]; ok {
|
|
return render(parser, rawBytes, urlPrefix, metas, isWiki)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Type returns if markup format via the filename
|
|
func Type(filename string) string {
|
|
if parser := GetParserByFileName(filename); parser != nil {
|
|
return parser.Name()
|
|
}
|
|
return ""
|
|
}
|
|
|
|
// IsMarkupFile reports whether file is a markup type file
|
|
func IsMarkupFile(name, markup string) bool {
|
|
if parser := GetParserByFileName(name); parser != nil {
|
|
return parser.Name() == markup
|
|
}
|
|
return false
|
|
}
|
|
|
|
// IsReadmeFile reports whether name looks like a README file
|
|
// based on its name. If an extension is provided, it will strictly
|
|
// match that extension.
|
|
// Note that the '.' should be provided in ext, e.g ".md"
|
|
func IsReadmeFile(name string, ext ...string) bool {
|
|
name = strings.ToLower(name)
|
|
if len(ext) > 0 {
|
|
return name == "readme"+ext[0]
|
|
}
|
|
if len(name) < 6 {
|
|
return false
|
|
} else if len(name) == 6 {
|
|
return name == "readme"
|
|
}
|
|
return name[:7] == "readme."
|
|
}
|