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replace.go
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replace.go
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/*
Nging is a toolbox for webmasters
Copyright (C) 2018-present Wenhui Shen <swh@admpub.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package helper
import (
"regexp"
)
var (
temporaryFileRegexp *regexp.Regexp
persistentFileRegexp *regexp.Regexp
anyFileRegexp *regexp.Regexp
placeholderRegexp = regexp.MustCompile(`\[storage:[\d]+\]`)
)
func init() {
Init()
}
func Init() {
ruleEnd := ExtensionRegexpEnd()
temporaryFileRegexp = regexp.MustCompile(UploadURLPath + `[\w-]+/0/[\w]+` + ruleEnd)
persistentFileRegexp = regexp.MustCompile(UploadURLPath + `[\w-]+/([^0]|[0-9]{2,})/[\w]+` + ruleEnd)
anyFileRegexp = regexp.MustCompile(UploadURLPath + `[\w-]+/([\w-]+/)+[\w-]+` + ruleEnd)
}
// ParseTemporaryFileName 从文本中解析出临时文件名称
var ParseTemporaryFileName = func(s string) []string {
files := temporaryFileRegexp.FindAllString(s, -1)
return files
}
// ParsePersistentFileName 从文本中解析出正式文件名称
var ParsePersistentFileName = func(s string) []string {
files := persistentFileRegexp.FindAllString(s, -1)
return files
}
// ParseAnyFileName 从文本中解析出任意上传文件名称
var ParseAnyFileName = func(s string) []string {
files := anyFileRegexp.FindAllString(s, -1)
return files
}
// ReplaceAnyFileName 从文本中替换任意上传文件名称
var ReplaceAnyFileName = func(s string, repl func(string) string) string {
return anyFileRegexp.ReplaceAllStringFunc(s, repl)
}
// ReplacePlaceholder 从文本中替换占位符
var ReplacePlaceholder = func(s string, repl func(string) string) string {
return placeholderRegexp.ReplaceAllStringFunc(s, func(find string) string{
id := find[9:len(find)-1]
return repl(id)
})
}