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|
SIPURandom class extend [
nextByte [
<category: 'random'>
^(RAND rand: 1) first.
]
nextInt [
<category: 'random'>
^(RAND rand: 4) asInteger
]
]
SIPUserAgentBase class extend [
generateCSeq [
<category: 'helper'>
"For pharo just use the random we have"
^(RAND rand: 4) asInteger abs
]
]
SIPQuotedStringParser extend [
skipWhitespace: aStream [
[aStream atEnd] whileFalse: [
| c |
c := aStream uncheckedPeek.
c = Character tab ifTrue: [aStream next].
c = Character space ifTrue: [aStream next].
^self
]
]
parseOn: aContext [
| memento startPosition result |
startPosition := aContext position.
memento := aContext remember.
"Skip whitespace"
self skipWhitespace: aContext.
"Check for the opening space"
aContext atEnd ifTrue: [
result := PPFailure message: 'No space for opening quote' context: aContext.
aContext restore: memento.
^result].
aContext uncheckedPeek = $" ifFalse: [
result := PPFailure message: 'No opening quote' context: aContext.
aContext restore: memento.
^result].
aContext skip: 1.
result := self parseToClosingQuote: aContext.
result isPetitFailure ifTrue: [
aContext restore: memento].
^result
]
parseToClosingQuote: aStream [
| text inQuote finish parsed |
text := WriteStream on: String new.
inQuote := false.
parsed := false.
finish := aStream atEnd.
[finish] whileFalse: ["Did we have an escape?"
inQuote
ifTrue: [
"TODO: Check if that is a valid sequence"
text nextPut: aStream next.
inQuote := false.
finish := aStream atEnd]
ifFalse: [
| c |
c := aStream uncheckedPeek.
c = $"
ifTrue: [
aStream skip: 1.
parsed := true.
^text contents]
ifFalse: [
c = $\ ifTrue: [inQuote := true].
text nextPut: c.
aStream skip: 1.
finish := aStream atEnd]]].
^PPFailure message: 'Expected closing quote' context: aStream
]
]
Base64LikeConverter class extend [
mimeEncode: aStream [
"Return a ReadWriteStream of characters. The data of aStream is encoded as 65 innocuous characters. (See class comment). 3 bytes in aStream goes to 4 bytes in output."
| me |
me := self new dataStream: aStream.
me
mimeStream: (ReadWriteStream on: (String new: (aStream size + 20) * 4 // 3)).
me mimeEncode.
me mimeStream position: 0.
^me mimeStream
]
]
|
