ed61de6276
* Add bbcode support Closes #687 As the issue suggested, I added bbcodes support to the forms. Now we support basic bbcodes, markdown and html tags * Add new dependencies
94 lignes
2 Kio
Go
94 lignes
2 Kio
Go
// Copyright 2015 Frustra. All rights reserved.
|
|
// Use of this source code is governed by the MIT
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package bbcode
|
|
|
|
import (
|
|
"html"
|
|
"net/url"
|
|
"strings"
|
|
)
|
|
|
|
// HTMLTag represents a DOM node.
|
|
type HTMLTag struct {
|
|
Name string
|
|
Value string
|
|
Attrs map[string]string
|
|
Children []*HTMLTag
|
|
}
|
|
|
|
// NewHTMLTag creates a new HTMLTag with string contents specified by value.
|
|
func NewHTMLTag(value string) *HTMLTag {
|
|
return &HTMLTag{
|
|
Value: value,
|
|
Attrs: make(map[string]string),
|
|
Children: make([]*HTMLTag, 0),
|
|
}
|
|
}
|
|
|
|
func (t *HTMLTag) String() string {
|
|
var value string
|
|
if len(t.Value) > 0 {
|
|
value = html.EscapeString(t.Value)
|
|
}
|
|
var attrString string
|
|
for key, value := range t.Attrs {
|
|
attrString += " " + key + `="` + strings.Replace(html.EscapeString(value), "\n", "", -1) + `"`
|
|
}
|
|
if len(t.Children) > 0 {
|
|
var childrenString string
|
|
for _, child := range t.Children {
|
|
childrenString += child.String()
|
|
}
|
|
if len(t.Name) > 0 {
|
|
return value + "<" + t.Name + attrString + ">" + childrenString + "</" + t.Name + ">"
|
|
} else {
|
|
return value + childrenString
|
|
}
|
|
} else if len(t.Name) > 0 {
|
|
return value + "<" + t.Name + attrString + ">"
|
|
} else {
|
|
return value
|
|
}
|
|
}
|
|
|
|
func (t *HTMLTag) AppendChild(child *HTMLTag) *HTMLTag {
|
|
if child == nil {
|
|
t.Children = append(t.Children, NewHTMLTag(""))
|
|
} else {
|
|
t.Children = append(t.Children, child)
|
|
}
|
|
return t
|
|
}
|
|
|
|
func InsertNewlines(out *HTMLTag) {
|
|
if strings.ContainsRune(out.Value, '\n') {
|
|
parts := strings.Split(out.Value, "\n")
|
|
for i, part := range parts {
|
|
if i == 0 {
|
|
out.Value = parts[i]
|
|
} else {
|
|
out.AppendChild(NewlineTag())
|
|
if len(part) > 0 {
|
|
out.AppendChild(NewHTMLTag(part))
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Returns a new HTMLTag representing a line break
|
|
func NewlineTag() *HTMLTag {
|
|
var out = NewHTMLTag("")
|
|
out.Name = "br"
|
|
return out
|
|
}
|
|
|
|
func ValidURL(raw string) string {
|
|
u, err := url.Parse(raw)
|
|
if err != nil {
|
|
return ""
|
|
}
|
|
return u.String()
|
|
}
|