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Finishing updating UTF

db4
Daniel Ehrenberg 2008-02-01 23:59:46 -06:00
parent 64650d8500
commit c584e50c04
3 changed files with 19 additions and 15 deletions
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2
core/io/encodings/encodings.factor
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@ -10,7 +10,7 @@ TUPLE: encode-error ;
TUPLE: decode-error ;
: decode-error ( -- * ) \ encode-error construct-empty throw ;
: decode-error ( -- * ) \ decode-error construct-empty throw ;
SYMBOL: begin

14
core/io/utf16/utf16-tests.factor
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@ -1,15 +1,15 @@
USING: tools.test io.utf16 ;
USING: tools.test io.utf16 arrays unicode.syntax ;
[ { CHAR: x } ] [ { 0 CHAR: x } decode-utf16be >array ] unit-test
[ { HEX: 1D11E } ] [ { HEX: D8 HEX: 34 HEX: DD HEX: 1E } decode-utf16be >array ] unit-test
[ { BIN: 11011111 CHAR: q } decode-utf16be >array ] unit-test-fails
[ { BIN: 11011011 CHAR: x BIN: 11011011 CHAR: x } decode-utf16be >array ] unit-test-fails
[ { UNICHAR: replacement-character } ] [ { BIN: 11011111 CHAR: q } decode-utf16be >array ] unit-test
[ { UNICHAR: replacement-character } ] [ { BIN: 11011011 CHAR: x BIN: 11011011 CHAR: x } decode-utf16be >array ] unit-test
[ B{ 0 120 216 52 221 30 } ] [ { CHAR: x HEX: 1d11e } encode-utf16be >array ] unit-test
[ B{ 0 120 216 52 221 30 } ] [ { CHAR: x HEX: 1d11e } encode-utf16be ] unit-test
[ { CHAR: x } ] [ { CHAR: x 0 } decode-utf16le >array ] unit-test
[ { 119070 } ] [ { HEX: 34 HEX: D8 HEX: 1E HEX: DD } decode-utf16le >array ] unit-test
[ { 0 BIN: 11011111 } decode-utf16le >array ] unit-test-fails
[ { 0 BIN: 11011011 0 0 } decode-utf16le >array ] unit-test-fails
[ { UNICHAR: replacement-character } ] [ { 0 BIN: 11011111 } decode-utf16le >array ] unit-test
[ { UNICHAR: replacement-character } ] [ { 0 BIN: 11011011 0 0 } decode-utf16le >array ] unit-test
[ B{ 120 0 52 216 30 221 } ] [ { CHAR: x HEX: 1d11e } encode-utf16le >array ] unit-test
[ B{ 120 0 52 216 30 221 } ] [ { CHAR: x HEX: 1d11e } encode-utf16le ] unit-test

18
core/io/utf16/utf16.factor
View File

@ -8,6 +8,9 @@ SYMBOL: double
SYMBOL: quad1
SYMBOL: quad2
SYMBOL: quad3
SYMBOL: ignore
: do-ignore ( -- ch state ) 0 ignore ;
: append-nums ( byte ch -- ch )
8 shift bitor ;
@ -19,21 +22,22 @@ SYMBOL: quad3
dup -3 shift BIN: 11011 number= [
dup BIN: 00000100 bitand zero?
[ BIN: 11 bitand quad1 ]
[ decode-error ] if
[ drop do-ignore ] if
] [ double ] if ;
: handle-quad2be ( byte ch -- ch )
: handle-quad2be ( byte ch -- ch state )
swap dup -2 shift BIN: 110111 number= [
>r 2 shift r> BIN: 11 bitand bitor
] [ decode-error ] if ;
>r 2 shift r> BIN: 11 bitand bitor quad3
] [ 2drop do-ignore ] if ;
: (decode-utf16be) ( buf byte ch state -- buf ch state )
{
{ begin [ drop begin-utf16be ] }
{ double [ end-multibyte ] }
{ quad1 [ append-nums quad2 ] }
{ quad2 [ handle-quad2be quad3 ] }
{ quad2 [ handle-quad2be ] }
{ quad3 [ append-nums HEX: 10000 + decoded ] }
{ ignore [ 2drop push-replacement ] }
} case ;
: decode-utf16be ( seq -- str )
@ -43,13 +47,13 @@ SYMBOL: quad3
swap dup -3 shift BIN: 11011 = [
dup BIN: 100 bitand 0 number=
[ BIN: 11 bitand 8 shift bitor quad2 ]
[ decode-error ] if
[ 2drop push-replacement ] if
] [ end-multibyte ] if ;
: handle-quad3le ( buf byte ch -- buf ch state )
swap dup -2 shift BIN: 110111 = [
BIN: 11 bitand append-nums HEX: 10000 + decoded
] [ decode-error ] if ;
] [ 2drop push-replacement ] if ;
: (decode-utf16le) ( buf byte ch state -- buf ch state )
{