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Encoding: Difference between revisions

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This page tracks notes related to the [http://dvcs.w3.org/hg/encoding/raw-file/tip/Overview.html Encoding Standard]. See [[Web Encodings]] for some historical data with respect to encodings and their labels.  
This page tracks notes related to the [http://encoding.spec.whatwg.org/ Encoding Standard]. See [[Web Encodings]] for some historical data with respect to encodings and their labels.


==Implementations==
==Implementations==


http://code.google.com/p/stringencoding/ implements the standard in JavaScript
* http://code.google.com/p/stringencoding/ implements the standard in JavaScript
* http://coq.no/darcsweb/?r=flex-encoding is an experimental (f)lex implementation of the decoding algorithms


==Legacy implementations==
==Legacy implementations==
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* http://mxr.mozilla.org/mozilla-central/source/extensions/universalchardet/src/base/ (Gecko; tests are a few directories up)
* http://mxr.mozilla.org/mozilla-central/source/extensions/universalchardet/src/base/ (Gecko; tests are a few directories up)
* http://code.google.com/p/juniversalchardet/ (Gecko's detector in Java)
* http://code.google.com/p/juniversalchardet/ (Gecko's detector in Java)
* https://bugzilla.mozilla.org/show_bug.cgi?id=631751 (UTF-16 sniffing)
* https://bugzilla.mozilla.org/show_bug.cgi?id=631751 (UTF-16 sniffing in Gecko)
* http://trac.webkit.org/browser/trunk/Source/WebCore/loader/TextResourceDecoder.cpp (WebKit; is this all?)
* http://trac.webkit.org/browser/trunk/Source/WebCore/loader/TextResourceDecoder.cpp (WebKit; is this all?)
===Gecko notes===
* Thai detection was not enabled [https://bugzilla.mozilla.org/show_bug.cgi?id=488426 before June 2009]
* Encodings not in the spec: iso-2022-cn, euc-tw
* GB2312 is supported, but superset gbk/gb18030 is not
* UTF-16 sniffing is HTML specific


==Misc==
==Misc==
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==Labels==
==Labels==


Labels in Opera that are not in the spec: '866', 'ansi_x3.4-1986', 'asmo-708', 'cn-gb', 'cp1250', 'cp1251', 'cp1252', 'cp1254', 'cp1257', 'cp367', 'cp50220', 'cp51932', 'cp819', 'cp932', 'cp936', 'csascii', 'cscp50220', 'cscp51932', 'csibm866', 'csinvariant', 'csiso646basic1983', 'csiso88596e', 'csiso88596i', 'iso-8859-6-i', 'csiso88598e', 'csiso88598i', 'cskoi8r', 'csunicode', 'csunicode11', 'csunicode11utf7', 'utf-7', 'csunicodeascii', 'csunicodejapanese', 'csunicodelatin1', 'csviscii', 'viscii', 'cswindows31j', 'euc-cn', 'euc-tw', 'euc-tw', 'extended_unix_code_packed_format_for_japanese', 'ibm367', 'ibm819', 'invariant', 'iso-10646', 'iso-10646-j-1', 'iso-10646-ucs-2', 'iso-10646-ucs-basic', 'iso-10646-unicode-latin1', 'iso-2022-cn', 'iso-2022-cn', 'iso-2022-jp-1', 'iso-2022-jp-1', 'iso-8859-6-e', 'iso-8859-6-i', 'iso-8859-6-i', 'iso-8859-8-e', 'iso-celtic', 'iso-ir-100', 'iso-ir-199', 'iso-ir-226', 'iso-ir-6', 'iso646-us', 'iso8859-11', 'iso8859-12', 'iso-8859-12', 'iso8859-13', 'iso8859-15', 'iso8859-16', 'iso8859-3', 'iso8859-4', 'iso8859-5', 'iso8859-6', 'iso8859-7', 'iso8859-8', 'iso8859-9', 'iso88591', 'iso885910', 'iso885911', 'iso885912', 'iso-8859-12', 'iso885913', 'iso885914', 'iso885915', 'iso885916', 'iso88592', 'iso88593', 'iso88594', 'iso88595', 'iso88596', 'iso88597', 'iso88598', 'iso88599', 'iso_646.basic:1983', 'iso_646.irv:1991', 'iso_8859-10:1992', 'iso_8859-14', 'iso_8859-14:1998', 'iso_8859-16', 'iso_8859-16:2001', 'iso_8859-1:1987', 'iso_8859-2:1987', 'iso_8859-3:1988', 'iso_8859-4:1988', 'iso_8859-5:1988', 'iso_8859-6-e', 'iso_8859-6-i', 'iso-8859-6-i', 'iso_8859-6:1987', 'iso_8859-7:1987', 'iso_8859-8-e', 'iso_8859-8-i', 'iso_8859-8:1988', 'iso_8859-9', 'iso_8859-9:1989', 'l10', 'l8', 'latin-9', 'latin10', 'latin8', 'microsoft-cp1250', 'microsoft-cp1251', 'microsoft-cp1252', 'microsoft-cp1253', 'microsoft-cp1254', 'microsoft-cp1255', 'microsoft-cp1256', 'microsoft-cp1257', 'microsoft-cp1258', 'ms932', 'ms936', 'ref', 'tis-620-2533', 'unicode-1-1', 'unicode-1-1-utf-7', 'utf-7', 'us', 'utf-7', 'utf-7', 'viscii', 'viscii', 'windows-936', 'x-cp1252', 'x-cp1253', 'x-cp1254', 'x-cp1255', 'x-cp1256', 'x-cp1257', 'x-cp1258', 'x-mac-ce', 'x-mac-ce', 'x-mac-greek', 'x-mac-turkish'
Labels in Opera that are not in the spec: 'ansi_x3.4-1986', 'cn-gb', 'cp367', 'cp50220', 'cp51932', 'cp932', 'cp936', 'csascii', 'cscp50220', 'cscp51932', 'csinvariant', 'csiso646basic1983', 'csunicode', 'csunicode11', 'csunicode11utf7', 'csunicodeascii', 'csunicodejapanese', 'csunicodelatin1', 'csviscii', 'cswindows31j', 'euc-cn', 'euc-tw', 'extended_unix_code_packed_format_for_japanese', 'ibm367', 'invariant', 'iso-10646', 'iso-10646-j-1', 'iso-10646-ucs-2', 'iso-10646-ucs-basic', 'iso-10646-unicode-latin1', 'iso-2022-cn', 'iso-2022-jp-1', 'iso-celtic', 'iso-ir-199', 'iso-ir-226', 'iso-ir-6', 'iso646-us', 'iso8859-16', 'iso885916', 'iso_646.basic:1983', 'iso_646.irv:1991', 'iso_8859-10:1992', 'iso_8859-14', 'iso_8859-14:1998', 'iso_8859-16', 'iso_8859-16:2001', 'iso_8859-6-e', 'iso_8859-6-i', 'iso_8859-8-e', 'iso_8859-8-i', 'l10', 'l8', 'latin-9', 'latin10', 'latin8', 'microsoft-cp1250', 'microsoft-cp1251', 'microsoft-cp1252', 'microsoft-cp1253', 'microsoft-cp1254', 'microsoft-cp1255', 'microsoft-cp1256', 'microsoft-cp1257', 'microsoft-cp1258', 'ms932', 'ms936', 'ref', 'tis-620-2533', 'unicode-1-1', 'unicode-1-1-utf-7', 'us', 'utf-7', 'viscii', 'windows-936', 'x-mac-ce', 'x-mac-greek', 'x-mac-turkish', 'x-user-defined'


[[Category:Spec_coordination]]
[[Category:Spec_coordination]]

Latest revision as of 10:31, 7 August 2013

This page tracks notes related to the Encoding Standard. See Web Encodings for some historical data with respect to encodings and their labels.

Implementations

Legacy implementations

Gecko
http://mxr.mozilla.org/mozilla-central/source/intl/uconv/
Chromium
http://src.chromium.org/svn/trunk/deps/third_party/icu46/README.chromium
http://src.chromium.org/svn/trunk/deps/third_party/icu46/source/data/mappings/convrtrs.txt
http://src.chromium.org/svn/trunk/deps/third_party/icu46/source/data/mappings/ucmlocal.mk

Japanese encodings

Got these links after the standard was written:

Sniffing

Gecko notes

  • Thai detection was not enabled before June 2009
  • Encodings not in the spec: iso-2022-cn, euc-tw
  • GB2312 is supported, but superset gbk/gb18030 is not
  • UTF-16 sniffing is HTML specific

Misc

Labels

Labels in Opera that are not in the spec: 'ansi_x3.4-1986', 'cn-gb', 'cp367', 'cp50220', 'cp51932', 'cp932', 'cp936', 'csascii', 'cscp50220', 'cscp51932', 'csinvariant', 'csiso646basic1983', 'csunicode', 'csunicode11', 'csunicode11utf7', 'csunicodeascii', 'csunicodejapanese', 'csunicodelatin1', 'csviscii', 'cswindows31j', 'euc-cn', 'euc-tw', 'extended_unix_code_packed_format_for_japanese', 'ibm367', 'invariant', 'iso-10646', 'iso-10646-j-1', 'iso-10646-ucs-2', 'iso-10646-ucs-basic', 'iso-10646-unicode-latin1', 'iso-2022-cn', 'iso-2022-jp-1', 'iso-celtic', 'iso-ir-199', 'iso-ir-226', 'iso-ir-6', 'iso646-us', 'iso8859-16', 'iso885916', 'iso_646.basic:1983', 'iso_646.irv:1991', 'iso_8859-10:1992', 'iso_8859-14', 'iso_8859-14:1998', 'iso_8859-16', 'iso_8859-16:2001', 'iso_8859-6-e', 'iso_8859-6-i', 'iso_8859-8-e', 'iso_8859-8-i', 'l10', 'l8', 'latin-9', 'latin10', 'latin8', 'microsoft-cp1250', 'microsoft-cp1251', 'microsoft-cp1252', 'microsoft-cp1253', 'microsoft-cp1254', 'microsoft-cp1255', 'microsoft-cp1256', 'microsoft-cp1257', 'microsoft-cp1258', 'ms932', 'ms936', 'ref', 'tis-620-2533', 'unicode-1-1', 'unicode-1-1-utf-7', 'us', 'utf-7', 'viscii', 'windows-936', 'x-mac-ce', 'x-mac-greek', 'x-mac-turkish', 'x-user-defined'