Replace tabs with spaces

 

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Handler function that replaces TABs with spaces and lines up columbs (intended for use with mono spaced fonts). From Cole Tierney"s Code Corner http://homepages.together.net/%7Etierney/cole/code/

--Side effect is a RETURN is added to text. on deTab thisText, theTabSize     if NOT stringP( thisText ) then return ""     if integerP( theTabSize ) then set tabSize = theTabSize   else set tabSize = 8    -- default tab size     set tabStr = ""   repeat with i = 1 to tabSize     put " " after tabStr   end repeat     set newString = ""     set lineCount = the number of lines in thisText     repeat with i = 1 to lineCount         set thisLine = line i of thisText         if thisLine = "" then       set newLine = " "     else  -- LOOK FOR TAB CHARS             set newLine = ""       set numOchars = the number of chars in thisLine           set tabCount = 0       set charCount = 0       repeat with j = 1 to numOchars               set aChar = char j of thisLine                 if aChar <> TAB and aChar <> numToChar( 10 ) then           put aChar after newLine           set charCount = charCount + 1         else                     if aChar = TAB then                         set padStr = char 1 to ( tabSize - charCount mod tabSize ) of tabStr                         put padStr after newLine             set charCount = charCount + length( padStr)                       set tabCount = tabCount + 1                       end if                   end if               end repeat           end if         put newLine & RETURN after newString       end repeat     return newString   end