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mLipok

Encoding problem - detecting/converting

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mLipok

I have such a snipet:

_Example()
Func _Example()
    Local $sStringToCheck1 = 'Jeżeli'
    Local $sStringToCheck2 = 'Jeżeli'
    MsgBox(0, '', StringToBinary($sStringToCheck1) & @CRLF & StringToBinary($sStringToCheck2))
EndFunc

This should demonstrate that first and second string are not the same (I hope so).
They have diferent encoding.

The problem is that I have single text with mixed strings.

The questions are how to:

  1. detect if file contain first encoding (which is bad in my case)
  2. how to convert bad (first) encoding to proper (second)

Remarks:
Remember that single file contains both strings.

 


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PACaleala

@OP You will see the difference between strings using an editor with 'composite fonts'.

The first string contains a combining dot above(Ux0307).

The second string has a latin small letter z with dot above(Ux017C).

If you go for a solution dealing with a file have a look here: 

Have fun !

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argumentum
On 11/13/2017 at 9:01 AM, mLipok said:

This should demonstrate that first and second string are not the same (I hope so).

_Example()
Func _Example()
    Local $sStringToCheck1 = 'Jeżeli'
    Local $sStringToCheck2 = 'Jeżeli'
    MsgBox(0, '', BinaryToString(StringToBinary($sStringToCheck1,1),4) & @CRLF & BinaryToString(StringToBinary($sStringToCheck2,1),4))
EndFunc

Hope it helps

2nd try:

_Example()
Func _Example()
    Local $sStringToCheck1 = 'Jeżeli'
    Local $sStringToCheck2 = 'Jeżeli'

    MsgBox(262144, '', BinaryToString(StringToBinary($sStringToCheck1,1),4) & " = " & isItOk($sStringToCheck1) & " = " & $sStringToCheck1 & @CR & _
        BinaryToString(StringToBinary($sStringToCheck2,1),4)  & " = " & isItOk($sStringToCheck2) & " = " & $sStringToCheck2 )
EndFunc

Func isItOk($s) ; maybe ?
    If StringToBinary(BinaryToString(StringToBinary($s,1),3)) = "" Then Return 0
    Return 1
EndFunc

 

Edited by argumentum
thinking

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jchd

Both string use the same encoding but they differ in Unicode normalization form.

Unicode Normalization Form: see https://r12a.github.io/scripts/tutorial/part3 and search for "Precomposed vs. decomposed" to see how this works in Latin scripts. Read about Windows support: https://msdn.microsoft.com/en-us/library/windows/desktop/dd374126(v=vs.85).aspx

Change normalization form of a string: https://msdn.microsoft.com/en-us/library/windows/desktop/dd319093(v=vs.85).aspx

  • Like 1

This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe here
RegExp tutorial: enough to get started
PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.
SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.
An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

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argumentum
8 minutes ago, jchd said:

Change normalization form of a string

If any of you get to write the DllCall() for the  Normaliz.dll please post the code :) 

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jchd

Do you really need that?

_Example()
Func _Example()
    Local $sStringToCheck1 = 'Jeżeli'
    Local $sStringToCheck2 = 'Jeżeli'
    MsgBox(0, 'Binary', StringToBinary($sStringToCheck1) & @CRLF & StringToBinary($sStringToCheck2))
    MsgBox(0, 'Using ==', $sStringToCheck1 == $sStringToCheck2)
    MsgBox(0, 'Using =', $sStringToCheck1 = $sStringToCheck2)
    MsgBox(0, 'Using StringCompare', StringCompare($sStringToCheck1, $sStringToCheck2) ? 'Distinct' : 'Same')
EndFunc

 

  • Like 1

This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe here
RegExp tutorial: enough to get started
PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.
SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.
An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

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jchd

For who wants it:

; Unicode Normalization Forms
Global Enum $UNF_NormC = 1, $UNF_NormD, $UNF_NormKC = 5, $UNF_NormKD

Func _UNF_Change($sIn, $iForm)
    If $iForm < $UNF_NormC Or $iForm > $UNF_NormC Or $iForm = 4 Then
        SetError(1, 0, $sIn)
    Else
        Local $aRet = DllCall("Normaliz.dll", "int", "NormalizeString", "int", $iForm, "wstr", $sIn, "int", -1, "ptr", 0, "int", 0)
        Local $tOut = DllStructCreate("wchar[" & $aRet[0] & "]")
        $aRet = DllCall("Normaliz.dll", "int", "NormalizeString", "int", $iForm, "wstr", $sIn, "int", -1, "ptr", DllStructGetPtr($tOut, 1), "int", $aRet[0])
        Return DllStructGetData($tOut, 1)
    EndIf
EndFunc


_Example()
Func _Example()
    Local $sStringToCheck1 = 'Jeżeli'
    Local $sStringToCheck2 = 'Jeżeli'
    MsgBox(0, 'Binary', StringToBinary($sStringToCheck1) & @CRLF & StringToBinary($sStringToCheck2))
    MsgBox(0, 'Using ==', $sStringToCheck1 == $sStringToCheck2)
    MsgBox(0, 'Using =', $sStringToCheck1 = $sStringToCheck2)
    MsgBox(0, 'Using StringCompare', StringCompare($sStringToCheck1, $sStringToCheck2) ? 'Distinct' : 'Same')
    MsgBox(0, '== after normalization', _UNF_Change($sStringToCheck1, $UNF_NormC) == _UNF_Change($sStringToCheck2, $UNF_NormC))
EndFunc

 

  • Like 3

This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe here
RegExp tutorial: enough to get started
PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.
SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.
An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

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