url.go•1.69 kB
// Copyright 2015 The Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package url provides functions for parsing, decoding and encoding URLs.
package mdurl
// A URL represents a parsed URL.
type URL struct {
Scheme string
RawScheme string
Auth string
Host string
Port string
Path string
RawQuery string
Fragment string
HasQuery bool
HasFragment bool
IPv6 bool
Slashes bool
}
// String reassembles the URL into a URL string.
func (u *URL) String() string {
size := len(u.Path)
if u.Scheme != "" {
size += len(u.Scheme) + 1
}
if u.Slashes {
size += 2
}
if u.Auth != "" {
size += len(u.Auth) + 1
}
if u.Host != "" {
size += len(u.Host)
if u.IPv6 {
size += 2
}
}
if u.Port != "" {
size += len(u.Port) + 1
}
if u.HasQuery {
size += len(u.RawQuery) + 1
}
if u.HasFragment {
size += len(u.Fragment) + 1
}
if size == 0 {
return ""
}
buf := make([]byte, size)
i := 0
if u.Scheme != "" {
i += copy(buf, u.Scheme)
buf[i] = ':'
i++
}
if u.Slashes {
buf[i] = '/'
i++
buf[i] = '/'
i++
}
if u.Auth != "" {
i += copy(buf[i:], u.Auth)
buf[i] = '@'
i++
}
if u.Host != "" {
if u.IPv6 {
buf[i] = '['
i++
i += copy(buf[i:], u.Host)
buf[i] = ']'
i++
} else {
i += copy(buf[i:], u.Host)
}
}
if u.Port != "" {
buf[i] = ':'
i++
i += copy(buf[i:], u.Port)
}
i += copy(buf[i:], u.Path)
if u.HasQuery {
buf[i] = '?'
i++
i += copy(buf[i:], u.RawQuery)
}
if u.HasFragment {
buf[i] = '#'
i++
copy(buf[i:], u.Fragment)
}
return string(buf)
}