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Encoding to ISO-8859-1 problemsHi,
We are trying to encode to ISO-8859-1, but we have problems doing it using the encoders in .NET. We get some unknown characters in some culture which comes out fine if we post (from IE) from a page in ISO-8859-1 to another page using ISO-8859-1, but cannot take a .NET string or a UTF-8 string, convert it in ISO-8859-1 and display it with this encoding using the same content in the string... Are there anyone that know how IE does it? Is there any correspondance table, are the any information into the unicode encoding that says "this character has this style and should convert to another character with this style" or something like it? Thanks ThunderMusic ThunderMusic <NoSpAmdanlatathotmaildotcom@NoSpAm.com> wrote:
> We are trying to encode to ISO-8859-1, but we have problems doing it using It's not very clear exactly what's going on. It's quite possible that > the encoders in .NET. We get some unknown characters in some culture which > comes out fine if we post (from IE) from a page in ISO-8859-1 to another > page using ISO-8859-1, but cannot take a .NET string or a UTF-8 string, > convert it in ISO-8859-1 and display it with this encoding using the same > content in the string... > > Are there anyone that know how IE does it? Is there any correspondance > table, are the any information into the unicode encoding that says "this > character has this style and should convert to another character with this > style" or something like it? when you post in IE, it's not using 8859-1 for the post even if the pages returned *are* genuinely using 8859-1. It's hard to see how it would be displayed in that case though. If a character isn't in 8859-1, you won't be able to represent it in 8859-1. Do you *have* to use 8859-1 rather than an encoding which can represent the whole of Unicode (eg UTF-8)? -- Jon Skeet - <sk***@pobox.com> http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet If replying to the group, please do not mail me too it's actually because we are sending mails to hotmail, and because our
application is in utf-8 and hotmail uses ISO-8859-1, so if we send a message encoded using UTF-8, the displayed message comes out plain ugly in hotmail... So we must find a way to convert things correctly... to give an exemple of what should be converted... a character like the oe (o and e tied together) should be converted to ISO-8859-1 oe (o and e separatly) because the "tied together" version does not exists in 8859-1... Anyone knows how to do it seemlessly? Thanks ThunderMusic Show quote "Jon Skeet [C# MVP]" <sk***@pobox.com> wrote in message news:MPG.202c16ae6a15fb8e98d80d@msnews.microsoft.com... > ThunderMusic <NoSpAmdanlatathotmaildotcom@NoSpAm.com> wrote: >> We are trying to encode to ISO-8859-1, but we have problems doing it >> using >> the encoders in .NET. We get some unknown characters in some culture >> which >> comes out fine if we post (from IE) from a page in ISO-8859-1 to another >> page using ISO-8859-1, but cannot take a .NET string or a UTF-8 string, >> convert it in ISO-8859-1 and display it with this encoding using the same >> content in the string... >> >> Are there anyone that know how IE does it? Is there any correspondance >> table, are the any information into the unicode encoding that says "this >> character has this style and should convert to another character with >> this >> style" or something like it? > > It's not very clear exactly what's going on. It's quite possible that > when you post in IE, it's not using 8859-1 for the post even if the > pages returned *are* genuinely using 8859-1. It's hard to see how it > would be displayed in that case though. > > If a character isn't in 8859-1, you won't be able to represent it in > 8859-1. > > Do you *have* to use 8859-1 rather than an encoding which can represent > the whole of Unicode (eg UTF-8)? > > -- > Jon Skeet - <sk***@pobox.com> > http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet > If replying to the group, please do not mail me too ThunderMusic <NoSpAmdanlatathotmaildotcom@NoSpAm.com> wrote:
> it's actually because we are sending mails to hotmail, and because our Does Hotmail *really* only use ISO-8859-1? Eek - how horrible.> application is in utf-8 and hotmail uses ISO-8859-1, so if we send a message > encoded using UTF-8, the displayed message comes out plain ugly in > hotmail... > So we must find a way to convert things correctly... to give an exemple of Right. At that point you're talking about much more than just normal > what should be converted... a character like the oe (o and e tied together) > should be converted to ISO-8859-1 oe (o and e separatly) because the "tied > together" version does not exists in 8859-1... > > Anyone knows how to do it seemlessly? encoding - and unfortunately we've reached the limit of my knowledge there :( -- Jon Skeet - <sk***@pobox.com> http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet If replying to the group, please do not mail me too actually, hotmail supports 4 types of encoding, but not UTF-8 nor UTF-16, so
it's becoming a problem... Thanks... I'm still searching for informations on the net... ThunderMusic Show quote "Jon Skeet [C# MVP]" <sk***@pobox.com> wrote in message news:MPG.202c1d0f7e209f9898d80e@msnews.microsoft.com... > ThunderMusic <NoSpAmdanlatathotmaildotcom@NoSpAm.com> wrote: >> it's actually because we are sending mails to hotmail, and because our >> application is in utf-8 and hotmail uses ISO-8859-1, so if we send a >> message >> encoded using UTF-8, the displayed message comes out plain ugly in >> hotmail... > > Does Hotmail *really* only use ISO-8859-1? Eek - how horrible. > >> So we must find a way to convert things correctly... to give an exemple >> of >> what should be converted... a character like the oe (o and e tied >> together) >> should be converted to ISO-8859-1 oe (o and e separatly) because the >> "tied >> together" version does not exists in 8859-1... >> >> Anyone knows how to do it seemlessly? > > Right. At that point you're talking about much more than just normal > encoding - and unfortunately we've reached the limit of my knowledge > there :( > > -- > Jon Skeet - <sk***@pobox.com> > http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet > If replying to the group, please do not mail me too
Show quote
"ThunderMusic" <NoSpAmdanlatathotmaildotcom@NoSpAm.com> wrote in message The discrepancy you are seeing in the way IE behaves is due to windowsnews:u3TBqchRHHA.3316@TK2MSFTNGP02.phx.gbl... > it's actually because we are sending mails to hotmail, and because our > application is in utf-8 and hotmail uses ISO-8859-1, so if we send a message > encoded using UTF-8, the displayed message comes out plain ugly in > hotmail... > > So we must find a way to convert things correctly... to give an exemple of > what should be converted... a character like the oe (o and e tied together) > should be converted to ISO-8859-1 oe (o and e separatly) because the "tied > together" version does not exists in 8859-1... > > Anyone knows how to do it seemlessly? > drawing a correlation between the OEM codepage 1252 and the ISO-8859-1. Windows-1252 is character set based on ISO-8859-1 in that all characters have the same encoding except for characters in the 128-159 range. In this range ISO-8859-1 has a set of control codes that are almost never used these days. Windows-1252 borrows this area to squeeze in some extra characters. When a page coming from source claiming ISO-8859-1 charset uses characters in this range IE just renders the Windows-1252 characters for them. However something sticking more strictly to ISO-8859-1 just doesn't know what to do with them. This doesn't solve your problem I know. If what you say is true then hotmail is unable to communicate well with all it's possible clients. That's so shocking it leaves me wondering whether there is something else wrong. Can you show some code you are using to generate the email? > If what you say is true then I strongly-strongly doubt that hotmail is unable to handle UTF-8> hotmail is unable to communicate well with all it's possible clients. > That's so shocking it leaves me wondering whether there is something else > wrong. > Can you show some code you are using to generate the email? Agree, most likely the probem is here :-)From experience I know that the chances that I discov a bug in a compiler are slim (happened two times only). So before blaming something on the compiler, I check my code 30 times! This is one of those. I am so sure that hotmail can handle utf-8, that I would check my code 30 times :-) -- Mihai Nita [Microsoft MVP, Windows - SDK] http://www.mihai-nita.net ------------------------------------------ Replace _year_ with _ to get the real email  |
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