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Unicode text to integer conversion from file data
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Unicode text to integer conversion from file data


  • Subject: Unicode text to integer conversion from file data
  • From: Donald Hall <email@hidden>
  • Date: Fri, 27 Oct 2006 23:54:44 -0600

Title: Unicode text to integer conversion from file data
Can anyone explain what is going on here? Result is same on Intel iMac or PPC iBook (Both Tiger):

-- integer from Unicode text test
on TempFile()
  "" & (path to "temp" from user domain) & "temp_file"
end TempFile
set f to TempFile()

try
     set n to open for access file f with write permission
   set testText to "59" as Unicode text
    set eof n to 0
  write testText to n
on error errMsg
      display dialog errMsg
end try
close access n

set theFile to (open for access file f)
set theRawData to (read theFile) as Unicode text
close access theFile

display dialog "theRawData is" & return & "|" & theRawData & "|"

set fifty9 to "59" as Unicode text

set comp to theRawData = fifty9
display dialog "comparison result is:" & comp as text

try
     set problem to "fifty9"
set n1 to fifty9 as integer
     set problem to "theRawData"
     set n2 to theRawData as integer
display dialog "coercion successful"
on error errMsg
     display dialog problem & ": " & errMsg
end try
----------------------------------------------------------
tell current application
       
path to "temp" from user domain
       
alias "Main Volume:Users:dhall:Library:Caches:TemporaryItems:"
 
open for access file "Main Volume:Users:dhall:Library:Caches:TemporaryItems:temp_file" with write permission
           
166
    
set eof 166 to 0
       
write "59" to 166
      
close access 166
       
open for access file "Main Volume:Users:dhall:Library:Caches:TemporaryItems:temp_file"
         
167
    
read 167
               
"59"
   
close access 167
       
display dialog "theRawData is
|59|
"
             
{button returned:"OK"}
 
display dialog "comparison result is:true"
             
{button returned:"OK"}
 
display dialog "theRawData: Can't make \"59\" into type integer"
               
{button returned:"OK"}
end tell
--------------------------------------------------------------------------
Above is copied and pasted from Script Editor event log.

Thanks to anyone who can explain this.  I need to extract a number from a Unicode text string read in from a file, but  the coercion fails.

Don

--
Donald S. Hall, Ph.D.
Apps & More Software Design, Inc.
email@hidden
http://www.appsandmore.com
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