Bay Six Software - [BETA] Unicode File Read Demo

Bay Six Software
Beyond the Basics

Profile

[BETA] Unicode File Read Demo

Bay Six Software Forum Index -> Snippet Testing

View previous topic :: View next topic

Author

Message

Brent
Site Admin

Joined: 01 Jul 2005
Posts: 797

Posted: Nov 3rd, 2007, 11:42pm Post subject: [BETA] Unicode File Read Demo

This should be useful for internationalization of LB apps. Let me know it it works for you.

Code:

'== Unicode File Read Demo
'== By Brent D. Thorn, 11/2007
'== License: Public Domain
'== Description:
' Prompts for a Unicode text file, opens the file, and reads it one line at a
' time, displaying each line in a message box.

' form a string to display in the box's caption
cap$ = AtoW$("- Notice -")

' get the name of a file
FileDialog "Open Unicode file", "*.txt", file$

If file$ = "" Then End

' open the file for input as #1
If OpenForInputW(file$, "#1") Then
Do Until EOF(#1)
' read a single line into msg$
Call LineInputW "#1", msg$

' display the text in a message box
' Note this is calling the Unicode version

CallDLL #user32, "MessageBoxW", _
_NULL As ULong, _
msg$ As Ptr, _
cap$ As Ptr, _
_MB_ICONEXCLAMATION As ULong, _
ret As Long
Loop

' reached end of file, close it
Close #1
Else
Notice "The selected file is not valid."
End If

End

Function OpenForInputW( FileName$, Handle$ )
'-- Opens a file and checks it for UTF-16/Unicode, little-endianness.
'-- Parameters:
' FileName$ - string holds name of file to open
' Handle$ - string holds name of handle to map to file
'-- Returns:
' False (zero) for failure. The handle is invalid.
' True (nonzero) for success. The handle is valid.

On Error GoTo [FileError]
Open FileName$ For Binary As #local1
hdr$ = Input$(#local1, 2)
If hdr$ = Chr$(255) + Chr$(254) Then
OpenForInputW = 1
MapHandle #local1, Handle$
Else
Close #local1
End If
Exit Function
[FileError]
End Function

Sub LineInputW Handle$, ByRef Text$
'-- Reads a line of text from a UTF-16/Unicode, little-endian file.
'-- Parameters:
' Handle$ - string holding a handle's name
' Text$ - string variable to hold the result

crlf$ = Chr$(13) + Chr$(0) + Chr$(10) + Chr$(0)
Text$ = ""
Do Until EOF(#Handle$)
Text$ = Text$ + Input$(#Handle$, 1)
If Right$(Text$, 4) = crlf$ Then Exit Do
Loop
If Right$(Text$, 4) = crlf$ Then
Text$ = Left$(Text$, Len(Text$) - 4)
End If
End Sub

Function AtoW$( A$ )
'-- Converts an ASCII/ANSI string to a UTF-16/Unicode little-endian
' string by adding NUL [CHR$(0)] characters.

For c = 1 To Len(A$)
AtoW$ = AtoW$ + Mid$(A$, c, 1) + Chr$(0)
Next
End Function

_________________
Brent

JosephE
Junior Member

Joined: 01 Nov 2007
Posts: 21

Posted: Nov 4th, 2007, 3:32am Post subject: Re: [BETA] Unicode File Read Demo

Most amazing. I had to use wordpad for the unicode and save it as a unicode text document before it would work, though.

Display posts from previous:

	Bay Six Software Forum Index -> Snippet Testing	All times are GMT
Page 1 of 1

Quick Reply
Username: Message: Shortcut keys: Alt+Q to activate, Alt+P to preview, Alt+S to submit

You cannot post new topics in this forum
You can reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum