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authorWim <wim@42.be>2018-08-06 21:47:05 +0200
committerWim <wim@42.be>2018-08-06 21:47:05 +0200
commit51062863a5c34d81e296cf15c61140911037cf3b (patch)
tree9b5e044672486326c7a0ca8fb26430f37bf4d83c /vendor/github.com/sorcix/irc/message.go
parent4fb4b7aa6c02a54db8ad8dd98e4d321396926c0d (diff)
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Use mod vendor for vendored directory (backwards compatible)
Diffstat (limited to 'vendor/github.com/sorcix/irc/message.go')
-rw-r--r--vendor/github.com/sorcix/irc/message.go308
1 files changed, 0 insertions, 308 deletions
diff --git a/vendor/github.com/sorcix/irc/message.go b/vendor/github.com/sorcix/irc/message.go
deleted file mode 100644
index 088938dc..00000000
--- a/vendor/github.com/sorcix/irc/message.go
+++ /dev/null
@@ -1,308 +0,0 @@
-// Copyright 2014 Vic Demuzere
-//
-// Use of this source code is governed by the MIT license.
-
-package irc
-
-import (
- "bytes"
- "strings"
-)
-
-// Various constants used for formatting IRC messages.
-const (
- prefix byte = 0x3A // Prefix or last argument
- prefixUser byte = 0x21 // Username
- prefixHost byte = 0x40 // Hostname
- space byte = 0x20 // Separator
-
- maxLength = 510 // Maximum length is 512 - 2 for the line endings.
-)
-
-func cutsetFunc(r rune) bool {
- // Characters to trim from prefixes/messages.
- return r == '\r' || r == '\n'
-}
-
-// Sender represents objects that are able to send messages to an IRC server.
-//
-// As there might be a message queue, it is possible that Send returns a nil
-// error, but the message is not sent (yet). The error value is only used when
-// it is certain that sending the message is impossible.
-//
-// This interface is not used inside this package, and shouldn't have been
-// defined here in the first place. For backwards compatibility only.
-type Sender interface {
- Send(*Message) error
-}
-
-// Prefix represents the prefix (sender) of an IRC message.
-// See RFC1459 section 2.3.1.
-//
-// <servername> | <nick> [ '!' <user> ] [ '@' <host> ]
-//
-type Prefix struct {
- Name string // Nick- or servername
- User string // Username
- Host string // Hostname
-}
-
-// ParsePrefix takes a string and attempts to create a Prefix struct.
-func ParsePrefix(raw string) (p *Prefix) {
-
- p = new(Prefix)
-
- user := indexByte(raw, prefixUser)
- host := indexByte(raw, prefixHost)
-
- switch {
-
- case user > 0 && host > user:
- p.Name = raw[:user]
- p.User = raw[user+1 : host]
- p.Host = raw[host+1:]
-
- case user > 0:
- p.Name = raw[:user]
- p.User = raw[user+1:]
-
- case host > 0:
- p.Name = raw[:host]
- p.Host = raw[host+1:]
-
- default:
- p.Name = raw
-
- }
-
- return p
-}
-
-// Len calculates the length of the string representation of this prefix.
-func (p *Prefix) Len() (length int) {
- length = len(p.Name)
- if len(p.User) > 0 {
- length = length + len(p.User) + 1
- }
- if len(p.Host) > 0 {
- length = length + len(p.Host) + 1
- }
- return
-}
-
-// Bytes returns a []byte representation of this prefix.
-func (p *Prefix) Bytes() []byte {
- buffer := new(bytes.Buffer)
- p.writeTo(buffer)
- return buffer.Bytes()
-}
-
-// String returns a string representation of this prefix.
-func (p *Prefix) String() (s string) {
- // Benchmarks revealed that in this case simple string concatenation
- // is actually faster than using a ByteBuffer as in (*Message).String()
- s = p.Name
- if len(p.User) > 0 {
- s = s + string(prefixUser) + p.User
- }
- if len(p.Host) > 0 {
- s = s + string(prefixHost) + p.Host
- }
- return
-}
-
-// IsHostmask returns true if this prefix looks like a user hostmask.
-func (p *Prefix) IsHostmask() bool {
- return len(p.User) > 0 && len(p.Host) > 0
-}
-
-// IsServer returns true if this prefix looks like a server name.
-func (p *Prefix) IsServer() bool {
- return len(p.User) <= 0 && len(p.Host) <= 0 // && indexByte(p.Name, '.') > 0
-}
-
-// writeTo is an utility function to write the prefix to the bytes.Buffer in Message.String().
-func (p *Prefix) writeTo(buffer *bytes.Buffer) {
- buffer.WriteString(p.Name)
- if len(p.User) > 0 {
- buffer.WriteByte(prefixUser)
- buffer.WriteString(p.User)
- }
- if len(p.Host) > 0 {
- buffer.WriteByte(prefixHost)
- buffer.WriteString(p.Host)
- }
- return
-}
-
-// Message represents an IRC protocol message.
-// See RFC1459 section 2.3.1.
-//
-// <message> ::= [':' <prefix> <SPACE> ] <command> <params> <crlf>
-// <prefix> ::= <servername> | <nick> [ '!' <user> ] [ '@' <host> ]
-// <command> ::= <letter> { <letter> } | <number> <number> <number>
-// <SPACE> ::= ' ' { ' ' }
-// <params> ::= <SPACE> [ ':' <trailing> | <middle> <params> ]
-//
-// <middle> ::= <Any *non-empty* sequence of octets not including SPACE
-// or NUL or CR or LF, the first of which may not be ':'>
-// <trailing> ::= <Any, possibly *empty*, sequence of octets not including
-// NUL or CR or LF>
-//
-// <crlf> ::= CR LF
-type Message struct {
- *Prefix
- Command string
- Params []string
- Trailing string
-
- // When set to true, the trailing prefix (:) will be added even if the trailing message is empty.
- EmptyTrailing bool
-}
-
-// ParseMessage takes a string and attempts to create a Message struct.
-// Returns nil if the Message is invalid.
-func ParseMessage(raw string) (m *Message) {
-
- // Ignore empty messages.
- if raw = strings.TrimFunc(raw, cutsetFunc); len(raw) < 2 {
- return nil
- }
-
- i, j := 0, 0
-
- m = new(Message)
-
- if raw[0] == prefix {
-
- // Prefix ends with a space.
- i = indexByte(raw, space)
-
- // Prefix string must not be empty if the indicator is present.
- if i < 2 {
- return nil
- }
-
- m.Prefix = ParsePrefix(raw[1:i])
-
- // Skip space at the end of the prefix
- i++
- }
-
- // Find end of command
- j = i + indexByte(raw[i:], space)
-
- // Extract command
- if j > i {
- m.Command = strings.ToUpper(raw[i:j])
- } else {
- m.Command = strings.ToUpper(raw[i:])
-
- // We're done here!
- return m
- }
-
- // Skip space after command
- j++
-
- // Find prefix for trailer
- i = indexByte(raw[j:], prefix)
-
- if i < 0 || raw[j+i-1] != space {
-
- // There is no trailing argument!
- m.Params = strings.Split(raw[j:], string(space))
-
- // We're done here!
- return m
- }
-
- // Compensate for index on substring
- i = i + j
-
- // Check if we need to parse arguments.
- if i > j {
- m.Params = strings.Split(raw[j:i-1], string(space))
- }
-
- m.Trailing = raw[i+1:]
-
- // We need to re-encode the trailing argument even if it was empty.
- if len(m.Trailing) <= 0 {
- m.EmptyTrailing = true
- }
-
- return m
-
-}
-
-// Len calculates the length of the string representation of this message.
-func (m *Message) Len() (length int) {
-
- if m.Prefix != nil {
- length = m.Prefix.Len() + 2 // Include prefix and trailing space
- }
-
- length = length + len(m.Command)
-
- if len(m.Params) > 0 {
- length = length + len(m.Params)
- for _, param := range m.Params {
- length = length + len(param)
- }
- }
-
- if len(m.Trailing) > 0 || m.EmptyTrailing {
- length = length + len(m.Trailing) + 2 // Include prefix and space
- }
-
- return
-}
-
-// Bytes returns a []byte representation of this message.
-//
-// As noted in rfc2812 section 2.3, messages should not exceed 512 characters
-// in length. This method forces that limit by discarding any characters
-// exceeding the length limit.
-func (m *Message) Bytes() []byte {
-
- buffer := new(bytes.Buffer)
-
- // Message prefix
- if m.Prefix != nil {
- buffer.WriteByte(prefix)
- m.Prefix.writeTo(buffer)
- buffer.WriteByte(space)
- }
-
- // Command is required
- buffer.WriteString(m.Command)
-
- // Space separated list of arguments
- if len(m.Params) > 0 {
- buffer.WriteByte(space)
- buffer.WriteString(strings.Join(m.Params, string(space)))
- }
-
- if len(m.Trailing) > 0 || m.EmptyTrailing {
- buffer.WriteByte(space)
- buffer.WriteByte(prefix)
- buffer.WriteString(m.Trailing)
- }
-
- // We need the limit the buffer length.
- if buffer.Len() > (maxLength) {
- buffer.Truncate(maxLength)
- }
-
- return buffer.Bytes()
-}
-
-// String returns a string representation of this message.
-//
-// As noted in rfc2812 section 2.3, messages should not exceed 512 characters
-// in length. This method forces that limit by discarding any characters
-// exceeding the length limit.
-func (m *Message) String() string {
- return string(m.Bytes())
-}