Leo, Are you sure you understand what percent encoding is ? Check the class comment of ZnPercentEncoding, it has links to a Wikipedia article. Did you see ZnPercentEncoderTests ? Anyway, I would think this is what you want to do: ZnPercentEncoder new encode: 'Neuquén, Neuquén Province, Argentina'. => 'Neuqu%C3%A9n%2C%20Neuqu%C3%A9n%20Province%2C%20Argentina' ZnPercentEncoder new decode: 'Neuqu%C3%A9n%2C%20Neuqu%C3%A9n%20Province%2C%20Argentina'. => 'Neuquén, Neuquén Province, Argentina' Seems to work fine, no ? What problem do you have with ZnUrl ? Sven BTW: this is a pharo-users question.

On 21 Apr 2015, at 22:51, Leo Paniceres <lpaniceres@gmail.com> wrote:

Hi I’m experiencing a problem when I try to encode an URL with latin characters with accents or circumflex. The example is:

​ ​ZnPercentEncoder new decode: 'Neuquén, Neuquén Province, Argentina'

The IETF standard provides these definitions:

https://www.ietf.org/rfc/rfc3986.txt

https://tools.ietf.org/html/std63

the implementation ZnPercentEncoder, decode: stringStream to: byteStream could be changed to accept characters below 256. (char charCode < 256 instad of char charCode < 128)?

decode: stringStream to: byteStream

| char |

self decodePlusAsSpace.

[ stringStream atEnd ]

whileFalse: [

((char := stringStream next) == $+ and: [ decodePlusAsSpace ])

ifTrue: [ byteStream nextPut: 32 ]

ifFalse: [

char == $%

ifTrue: [ byteStream nextPut: (self readHexFrom: stringStream) ]

ifFalse: [

char charCode < 128

ifTrue: [ byteStream nextPut: char charCode ]

ifFalse: [ self errorAsciiCharacterExpected ] ] ] ]