winedt
The popular WinEdt editor has been just updated to version 7. It is claimed that now WinEdt supports Unicode. However it was also possible to compile Unicode texts in 6th version. I did not notice big difference between 6th and 7th version except that new version uses Unicode dictionaries. Could one explain item by item what has changed? The WinEdt website has only very brief statement on that issue.
Note that answers to XeLaTeX, WinEdt 6.0 and UTF-8 might be helpful but not exhaustive.
Go to "Options" -> "Options Interface" and double-click the "Main Menu" item:
A local copy of MainMenu.ini gets opened. In this file, substitute the lines
ITEM="PDFLaTeX"
CAPTION="PDF&LaTeX"
IMAGE="TeXPDFLaTeX"
SAVE_INPUT=1
MACRO="Exe('%b\Exec\TeX\PDFLaTeX.edt');"
REQ_FILTER=:"%!M=TeX"|"%!M=TeX:STY"|"%!M=TeX:AUX"
ITEM="PDFTeX"
CAPTION="PDF&TeX"
IMAGE="TeXPDFTeX"
SAVE_INPUT=1
MACRO="Exe('%b\Exec\TeX\PDFTeX.edt');"
REQ_FILTER=:"%!M=TeX"|"%!M=TeX:STY"|"%!M=TeX:AUX"
ITEM="-"
ITEM="LuaLaTeX"
CAPTION="LuaLaTeX"
IMAGE="TeXLuaLaTeX"
SAVE_INPUT=1
MACRO="Exe('%b\Exec\TeX\LuaLaTeX.edt');"
REQ_FILTER=:"%!M=TeX"|"%!M=TeX:STY"|"%!M=TeX:AUX"
ITEM="LuaTeX"
CAPTION="LuaTeX"
IMAGE="TeXLuaTeX"
SAVE_INPUT=1
MACRO="Exe('%b\Exec\TeX\LuaTeX.edt');"
REQ_FILTER=:"%!M=TeX"|"%!M=TeX:STY"|"%!M=TeX:AUX"
ITEM="-"
ITEM="XeLaTeX"
CAPTION="XeLaTeX"
IMAGE="TeXXeLaTeX"
SAVE_INPUT=1
MACRO="Exe('%b\Exec\TeX\XeLaTeX.edt');"
REQ_FILTER=:"%!M=TeX"|"%!M=TeX:STY"|"%!M=TeX:AUX"
ITEM="XeTeX"
CAPTION="XeTeX"
IMAGE="TeXXeTeX"
SAVE_INPUT=1
MACRO="Exe('%b\Exec\TeX\XeTeX.edt');"
REQ_FILTER=:"%!M=TeX"|"%!M=TeX:STY"|"%!M=TeX:AUX"
with the following
ITEM="PDFLaTeX"
CAPTION="PDF&LaTeX"
IMAGE="TeXPDFLaTeX"
SAVE_INPUT=1
MACRO="Exe('%b\Exec\TeX\PDFLaTeX.edt');"
SHORTCUT="41040::Shift+Alt+P"
REQ_FILTER=:"%!M=TeX"|"%!M=TeX:STY"|"%!M=TeX:AUX"
ITEM="PDFTeX"
CAPTION="PDF&TeX"
IMAGE="TeXPDFTeX"
SAVE_INPUT=1
MACRO="Exe('%b\Exec\TeX\PDFTeX.edt');"
SHORTCUT="57424::Shift+Ctrl+Alt+P"
REQ_FILTER=:"%!M=TeX"|"%!M=TeX:STY"|"%!M=TeX:AUX"
ITEM="-"
ITEM="LuaLaTeX"
CAPTION="LuaLaTeX"
IMAGE="TeXLuaLaTeX"
SAVE_INPUT=1
MACRO="Exe('%b\Exec\TeX\LuaLaTeX.edt');"
SHORTCUT="41045::Shift+Alt+U"
REQ_FILTER=:"%!M=TeX"|"%!M=TeX:STY"|"%!M=TeX:AUX"
ITEM="LuaTeX"
CAPTION="LuaTeX"
IMAGE="TeXLuaTeX"
SAVE_INPUT=1
MACRO="Exe('%b\Exec\TeX\LuaTeX.edt');"
SHORTCUT="57429::Shift+Ctrl+Alt+U"
REQ_FILTER=:"%!M=TeX"|"%!M=TeX:STY"|"%!M=TeX:AUX"
ITEM="-"
ITEM="XeLaTeX"
CAPTION="XeLaTeX"
IMAGE="TeXXeLaTeX"
SAVE_INPUT=1
MACRO="Exe('%b\Exec\TeX\XeLaTeX.edt');"
SHORTCUT="41029::Shift+Alt+E"
REQ_FILTER=:"%!M=TeX"|"%!M=TeX:STY"|"%!M=TeX:AUX"
ITEM="XeTeX"
CAPTION="XeTeX"
IMAGE="TeXXeTeX"
SAVE_INPUT=1
SHORTCUT="57413::Shift+Ctrl+Alt+E"
MACRO="Exe('%b\Exec\TeX\XeTeX.edt');"
REQ_FILTER=:"%!M=TeX"|"%!M=TeX:STY"|"%!M=TeX:AUX"
At this point press Shift+Ctrl+F9 to reload the file.
Now you have the following shortcuts
Best Answer
Well the answer you linked too already said it: Winedt 6 can handle utf8. But only if you need only chars from one codepage (e.g. if you are only using the chars from ansinew). When opening an utf8-file winedt 6 translates the chars to (e.g.) the ansinew codepage and all chars outside this codepage are shown as
??. It you change such a file and save it with winedt 6 all chars outside ansinew are lost. This means you can use at most 256 different chars and you can't write with winedt 6 a document with english and greek or english and cyrillic or a CJK-document. Winedt 7 now can handle all the thousands unicode chars.