diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0aa0124..bb288d3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -49,7 +49,7 @@ set(ibcp_COPYRIGHT_YEAR 2012)
 
 set(ibcp_RELEASE_MAJOR 0)
 set(ibcp_RELEASE_MINOR 2)
-set(ibcp_RELEASE_PATCH -6)
+set(ibcp_RELEASE_PATCH 0)
 
 set(ibcp_RELEASE_STRING release${ibcp_RELEASE_MAJOR}.${ibcp_RELEASE_MINOR})
 if (ibcp_RELEASE_PATCH LESS 0)
diff --git a/README b/README
index bd4c711..f30dedc 100644
--- a/README
+++ b/README
@@ -16,6 +16,7 @@ generated by 'cmake' cross-platform, open-source make system.  This
 project is currently being developed on Linux (Ubuntu based Mint 13) but
 is also be tested on 32-bit Windows XP and 64-bit Windows 7.  On the
 Windows system, the MinGW Minimal GNU for Windows is used for building.
+The Qt toolkit is being used for development of the GUI.
 
 Information for this project can be found at the project's blog located
 at http://interactivebasiccompilerproject.blogspot.com, which contains
@@ -32,7 +33,8 @@ converts text input into BASIC language tokens.  The translator is
 currently being developed and currently supports the translation of
 BASIC expressions along a few BASIC commands (LET, PRINT, and INPUT)
 into a reverse polish notation format that will be used for fast
-execution of the BASIC program.
+execution of the BASIC program.  The GUI implementation has been
+started but currently only displays an about box.
 
 
 Building The Program
@@ -54,9 +56,17 @@ zip or tar file, the project is build with a few short commands:
 
 Running Regression Tests
 ------------------------
-To run the include regression tests, run the regtest script that was
+To run the included regression tests, run the regtest script that was
 copied into the ibcp/build directory.  The test will report whether the
-tests pass or fail.
+tests pass or fail.  The memtest script (Linux only) will run all the
+tests but also look for memory leaks (requires the valgrind program).
+
+
+Command Line Options
+--------------------
+The -v option will output the version string and exit.  The -h or -?
+option will output the usage message and exit.  No options will start
+the GUI, which currently only displays the about box and then exits.
 
 
 Running Interactively
diff --git a/enums.awk b/enums.awk
index 9f8e91b..9782341 100644
--- a/enums.awk
+++ b/enums.awk
@@ -20,31 +20,7 @@
 #
 #  Change History:
 #
-#  2010-03-20  initial release
-#
-#  2010-04-04  added comment header with GPL, change history and usage
-#              modified script to handle digits in code names
-#
-#  2010-04-28  added code to allow for multiple codes on a line
-#              allow for Invalid_Code = -1
-#              added -d to sort command to ignore "_" in codes names
-#
-#  2010-09-06  modified to only look for codes in the Code enumeration
-#
-#  2011-02-26  rewrote script to generate codes.h and codes.txt directly from
-#              the table.cpp source file (all code performed in BEGIN block)
-#
-#  2011-03-26  renamed from codes.awk to enums.awk
-#              updated to write autoenums.h that includes enum Code and
-#                enum TokenStatus (which comes from ibcp.cpp)
-#              added exit code upon failure to terminate build
-#  2011-06-12  for use with cmake, added an optional path to the source files
-#              as the first argument on the awk command line
-#  2012-10-06  modified to remove the CR at the end of the lines in DOS format
-#              files, but do nothing with Unix format files
-#
-#  2012-11-01  changed 'const char *' to 'QString' for message_array[]
-#  2012-11-03  changed ibcp.cpp to token.cpp
+#  2010-03-20  initial version
 #
 #
 #  Usage: awk -f enums.awk [source path]
diff --git a/ibcp.h b/ibcp.h
index b97c625..27a407f 100644
--- a/ibcp.h
+++ b/ibcp.h
@@ -20,292 +20,7 @@
 //
 //	Change History:
 //
-//	2010-02-18	initial release
-//
-//	2010-03-01	support for Parser class added, which includes:
-//				  Token and CmdArgs structures; Parser class
-//				  new CmdArgs_DataType and Error_Flag
-//				  renamed ImCommand_TokenType to ImmCmd_TokenType
-//
-//	2010-03-06	replaced DefFunc_TokenType with DefFuncN_TokenType and
-//				  DefFuncP_TokenType so that it can be determined if the define
-//				  function name has a parentheses or not
-//
-//	2010-03-07	added length of token with error to Token along with two new
-//				set_error() functions
-//
-//	2010-03-11	support for Translator class initiated, which includes:
-//				replaced IntFunc_TokenType With IntFuncN_TokenType and
-//				IntFuncP_TokenType; and added new static members to Token
-//
-//	2010-03-17	added codes Null_Code, Neq_Code, and EOL_Code
-//				added unary_code to TableEntry
-//				renamed code to index in Token to avoid confusion
-//
-//	2010-03-18	added Translator class;
-//				added default to Token constructor
-//				added set_token() function to Table class
-//
-//	2010-03-20	added precedence to TableEntry
-//				added more access functions to Table
-//				made numerous changes to Translator class
-//
-//	2010-03-21	initialized length field in Token to 1
-//				added is_unary_operator() to Table
-//				added additional diagnostic errors to Translator
-//
-//	2010-03-25	added variables to Table and Translator to support parentheses,
-//				added Highest_Precedence constant
-//
-//	2010-03-26	added do_pending_paren() to Translator class
-//
-//	2010-04-02	add support to Token and Table to get precedence values for
-//				  token types that don't have table entries (DefFuncP and Paren)
-//				added count_stack of new type SimpleStack to Translator to
-//				  support commas (for subscripts in arrays and arguments in
-//				  functions)
-//				added more errors to Translator
-//
-//	2010-04-04	added support for number of argument checking for internal
-//				  functions including added codes for functions with different
-//				  number of arguments; adding Multiple_Flag
-//				added nargs to TableEntry; new Table access function and search
-//				  function
-//				added new error to Translator
-//				made token argument a reference in Translator::add_token()
-//				added debug_name() to Table
-//
-//	2010-04-11	added assignment operator codes
-//				added mode with enumerator to Translator
-//				added more error codes to Translator
-//	2010-04-12	added reference flag to Token
-//	2010-04-13	made token argument a reference in Translator::add_operator()
-//	2010-04-16	added more error codes to Translator
-//				added expression mode flag option to Translator for testing
-//	2010-04-17	added another error code to Translator
-//
-//	2010-04-24	added the associated codes for the specific data types codes for
-//				  all the operators and internal functions where applicable
-//				add new Frac_Code
-//				rearranged DataType enumeration names so that the actual data
-//				  types are listed at the beginning with Double (the default)
-//				  listed first; added number_DataType for actual number of data
-//				  types
-//				renamed nargs to noperands in TableEntry and Table (now
-//				  applicable operators in addition to internal functions)
-//				added Max_Operands and Max_Assoc_Codes definitions; added
-//				  operand_datatype[] and assoc_codes[] arrays to TableEntry;
-//				  added related access functions to Table
-//	2010-04-25	added Invalid_Code set to -1
-//				updated Translator for data type handling:
-//				  added exptected data type errors
-//				  renamed BUG_StackEmpty to BUG_HoldStackEmpty
-//				  added BUG_DoneStackEmpty
-//				  added set_default_datatype() to set the data type for
-//				    operands that didn't have a specific data type
-//				  added find_code() and match_code() with Match enum
-//
-//	2010-05-03	added ExprInfo to hold expression related information for the
-//				table entries; replaced these members with ExprInto pointer in
-//				TableEntry; modified the access functions in Table
-//	2010-05-05	added Reference_Flag and AssignList_Flag
-//	2010-05-07	added associated codes for Assign and AssignList
-//	2010-05-08	added check for null exprinfo in datatype() and unary_code()
-//				  access functions of Table
-//				added last_operand argument to Table::find_code()
-//
-//	2010-05-15	added TmpStr_DataType
-//				added RpnItem structure, changed done_stack and output list from
-//				  holding Token* to RpnItem*
-//				moved operand[] array from find_code() to Translator as member,
-//				  removed operand argument from Translator::match_code()
-//				added logic to Translator::set_default_datatype() to set data
-//				  type to TmpStr for token types DefFuncN/DefFuncP when the data
-//				  type is String
-//
-//	2010-05-19	added new SubStr_DataType
-//				added new associated code AssignSubStr_Code to Assign_Code
-//	2010-05-20	increased Max_Assoc_Codes from 2 to 3 because of
-//				  AssignSubStr_Code
-//				added new maximum table errors
-//
-//	2010-05-20	added new associated code AssignListMixStr_Code to
-//				  AssignList_Code
-//				added RpnItem::set() to set rpn item members without allocating
-//				  a new array and copying to the array
-//
-//	2010-05-27	added SubCode enumeration and subcode member to Token
-//	2010-05-28	changed hold_stack and done_stack from List to SimpleStack in
-//				  Translator (a linked list is unnecessary for these stacks)
-//				moved/renamed Translator::Status to TokenStatus
-//				added CmdItem struct and cmd_stack to Translator
-//				moved/renamed Translator::Mode to TokenMode along with
-//				  token_mode to TableEntry (next token mode for command) and
-//				  access function to Table
-//				added TokenHandler typedef along with token_handler to
-//				  TableEntry and access function to Table, added friend
-//				  definitions for new translator token handler functions and
-//				  extern definitions for actual functions
-//	2010-05-29	added static token has table entry flag (table) to Token along
-//				  with access function (used by Table access functions)
-//				added Hidden_Flag to mark table entry of hidden codes
-//				added new flags Table access function with token pointer
-//				  argument - returns no flags (0) for non-table entrytokens
-//				changed argument to Translator::do_pending_paren() from index
-//				  to token pointer so that it will work with tokens that don't
-//				  have a table entry (arrays and functions)
-//
-//	2010-06-01	added support for print-only functions
-//				added generic flag member to CmdItem that can be used by
-//				  commands (for PRINT it will be used to determine if a PRINT
-//				  token should be added at the end of a translated print
-//				  statement, i.e. advance to a new line)
-//	2010-06-02	added support for semicolon with token handler
-//				added Table::new_token() for allocating a new token and setting
-//				  it up for a specific code
-//	2010-06-03	added Translator::expression_end() for checking if expression
-//				  was ended correctly
-//	2010-06-04	added Translator::add_print_code() for adding new data type
-//				  specific print codes that were also added
-//	2010-06-05	added support for command handler function pointers
-//				  (was necessary to move CmdItem structure outside Translator)
-//	2010-06-06	added EndExpr_Flag for token codes that can end an expression
-//				corrected issue with special Translator expression only mode
-//	2010-06-08	added PrintFunc_CmdFlag and SemiColon_SubCode
-//	2010-06-09	changed count_stack from <char> to new <CountItem>, which
-//				  contains the old count and expected number of arguments
-//	2010-06-10	added new FirstOperand translator state - used for identifying
-//				  if any tokens for expression have been received yet
-//	2010-06-13	added token pointer argument to command handlers so that
-//				  command handlers have accessed to calling token
-//	2010-06-14	added Translator::paren_status() for checking if there is an
-//				  outstanding token with parentheses on the hold stack and if
-//				  there is, to return the appropriate error
-//	2010-06-14	removed AssignList_Flag because it is unnecessary (the code can
-//				  be checked for AssignList_Code)
-//	2010-06-01/14 added, renamed and deleted many TokenStatus enumeration
-//				   values for matching error messages that were changed for
-//				   better clarity
-//
-//	2010-06-24	added another TokenStatus
-//	2010-06-25	replaced TableErrType enum and TableError struct with
-//				  ErrorType enum and Error struct template so that this can also
-//				  be used for TokenStatus
-//				TableSearch renamed to SearchType
-//	2010-06-26	added EndStatement_Flag
-//	2010-06-29	added new ExprType enumeration
-//				added expr_type member to Translator (initialize for expr mode)
-//				added expr_type member to TableEntry (with access function)
-//				updated expected expression related token statuses
-//	2010-06-30	updated expected expression related token statuses
-//	2010-07-01	added AssignList_CmdFlag back
-//				removed last_operand argument from Table::find_code(), which was
-//				  needed for assign list operators, but assign list is no
-//				  handled by comma, semicolor and Assign handlers
-//				added new check_assignlist_token() and set_assign_command()
-//				  to Translator
-//	2010-07-02	updated TokenStatus
-//				added new search and match functions to Table
-//	2010-07-04	updated TokenStatus
-//
-//	2010-08-01	removed support for multiple equal assignments (now only commas
-//				  used for multiple assignments)
-//	2010-07-18	added second associated index to ExprInfo for support of
-//				  checking each operand when processed instead of processing
-//				  all operands at the end
-//	2010-08-10	added several multiple error types used for additional table
-//				  checking during initialization
-//	2010-09-03	added new Translator::process_final_operand(),
-//				  modified Translator::find_code(),
-//				  removed Translator::match_code()
-//	2010-12-13	added number of string arguments to ExprInfo for Table entries
-//
-//	2011-01-02	added Translator::get_expr_datatype()
-//	2011-01-05	put datatype back into TableEntry, removed expr_type
-//				modified datatype access function to get main datatype if there
-//				  is not exprinfo (this may be temporary)
-//	2011-01-07	removed datatype from ExprInfo
-//
-//	2011-01-11	moved length from union in Token so it can be used for all types
-//	2011-01-13	implemented new Translator::HoldStackItem and changed hold_stack
-//				added argument to Translator:: add_operator()
-//				  and process_final_operand() for handling first/last operands
-//	2011-01-15	implemented new Translator::DoneStackItem and changed done_stack
-//				added argument to Translator::find_code() for handling
-//				  first/last operands
-//				implemented new Translator:: process_first_operand() and
-//				  delete_close_paren()
-//	2011-01-16	added Token::include() for reporting range of tokens for errors
-//	2011-01-22	added last and used sub-code flags for close paren tokens so
-//				  they don't get deleted until they are not used anymore
-//				added Translator::delete_open_paren()
-//	2011-01-29	added list element pointer to Token for memory leak detection
-//				added new and delete operator Token functions for memory leaks
-//				added static list and del_list to Token for memory leaks
-//				moved all static members of Token to the end so that it is
-//				  easier to see the regular members when debugging
-//	2011-01-30	reset string pointer to NULL in Token deconstructor
-//				made Translator::delete_open_paren() public to be accessible
-//				  by caller of Translator (to correct a memory leak)
-//	2011-02-04	added associated codes for temporary strings
-//
-//	2011-02-10	added Translator::call_command_handler()
-//				added BUG_CmdStackEmptyCmd token status
-//	2011-02-11	added BUG_UnexpToken token status
-//	2011-02-12	renamed ExpStatement_TokenStatus to ExpCommand
-//	2011-02-20	renamed SimpleStack to Stack
-//
-//	2011-02-26	removed Code enumeration (now auto gen'd in codes.h)
-//				changed Token::index back to code
-//				moved Table::index_code[], code() and index()
-//				removed TableEntry::code (index now same as code)
-//				added new ImmCmd search type
-//				added Code operator overload functions
-//	2011-03-01	started INPUT command handler implementation
-//				added Question_SubCode
-//	2011-03-04	added non-IntFunc check to Translator::set_default_datatype()
-//	2011-03-05	removed PrintOnlyIntFunc, added ExpSemiCommaOrEnd_TokenStatus
-//				added "_State" to enum Translator::State values
-//				added Translator::EndExpr_State
-//	2011-03-10	renamed ExpCommand_TokenStatus to ExpCmd_TokenStatus
-//	2011-03-13	removed ExpAssignRef_TokenStatus, UnExpCommand_TokenStatus,
-//				  UnexpAssignComma_TokenStatus, UnexpParenInComma_TokenStatus
-//	2011-03-19	renamed EndStatement_Flag to EndStmt_Flag
-//				added Keep_SubCode (for INPUT), ExpEndStmt_TokenStatus
-//				renamed EndStatment_Flag to EndStmt_Flag
-//				added Translator::EndStmt_State
-//				added ExpEndStmt_TokenStatus
-//				implemented Translator::assoc2_code() access function
-//	2011-03-20	added End_SubCode (for INPUT), added input command flags
-//	2011-03-22	renamed Translator::FirstOperand_State to OperandOrEnd_State
-//	2011-03-24	added ExpOpSemiOrComma_TokenStatus
-//
-//	2011-03-26	enum TokenStatus is now automatically generated from the
-//				  ibcp.cpp source file by the enums.awk script so it was
-//				  removed,
-//				The automatic codes.h was renamed autoenums.h
-//				removed Duplicate and Missing error types (no longer used)
-//				changed several shorts (index values) to type T in Error
-//				changed Token::message_array[] to simply string pointer array
-//	2011-03-27	added operand_state flag to Parser with set access function
-//				added get operand state access function to Translator
-//
-//	2012-10-25	added new function Token::isNull() to properly check for the
-//				  null token (not all token types have a valid code)
-//	2012-10-27	converted translator output rpn list from List class to QList
-//				also required changes to done_stack (element list pointer to
-//				  rpn item pointer), cmd_stack (element list pointer to index
-//				  into output rpn list), and RpnItem.operands[] (element list
-//				  pointer array to RpnItem pointer array)
-//	2012-10-28	removed token lists and new/delete overload functions
-//	2012-10-28	removed Error Template (no longer needed)
-//				changed Table class (constructor and new initialize() function)
-//	2012-10-29	converted translator stacks from Stack class to QStack
-//	2012-10-31	added 'const' to 'char *' variables in Parser
-//	2012-11-01	removed support for immediate commands
-//				changed all String to QString
-//				renamed Parser functions and variables to Qt Style naming
-//	2012-11-03	separated classes to individual header files
+//	2010-02-18	initial version
 
 #ifndef IBCP_H
 #define IBCP_H
diff --git a/ibcp_config.h.in b/ibcp_config.h.in
index 7570e8c..bd96d9e 100644
--- a/ibcp_config.h.in
+++ b/ibcp_config.h.in
@@ -21,9 +21,6 @@
 //	Change History:
 //
 //	2011-06-11	initial version
-//
-//	2012-10-23	renamed variables from VERSION to RELEASE
-//				added new ibcp_RELEASE_STRING
 
 // the configured options and settings for ibcp
 // (for passing values from cmake to ibcp source files)
diff --git a/memtest.in b/memtest.in
index d376147..2a6d212 100755
--- a/memtest.in
+++ b/memtest.in
@@ -20,8 +20,7 @@
 #
 #  Change History:
 #
-#  2012-10-25  initial release (started from regtest)
-#  2012-10-29  added version output
+#  2012-10-25  initial version (started from regtest)
 #
 #
 #  Usage:
diff --git a/parser.cpp b/parser.cpp
index 1245674..77bc2ed 100644
--- a/parser.cpp
+++ b/parser.cpp
@@ -20,66 +20,7 @@
 //
 //  Change History:
 //
-//	2010-03-01	initial release
-//
-//	2010-03-06	split DefFunc_TokenType into DefFuncN_TokenType and
-//				DefFuncP_TokenType so that it can be determined if define
-//				function name has a parentheses or not
-//
-//	2010-03-07	in get_number() changed situation of 0 leading another digit
-//				  from terminating the number at the first 0 to a leading zero
-//				  error (no legal BASIC would have this situation;
-//				changed several set_error() calls to have a length
-//				  argument for the new length of token error field in Token
-//
-//	2010-03-08	removed no closing quote check from get_string() since this
-//				condition was made acceptable in scan_string()
-//
-//	2010-03-10	rewrote get_operator() to properly handle two character
-//				operators
-//
-//	2010-03-11	allow tabs to be white space in skip_whitespace()
-//
-//	2010-03-17	modified get_token() to return special end-of-line token
-//				  instead of a NULL pointer
-//				changed all token->code to token->index
-//
-//	2010-03-18	replaced code with call to set_token()
-//
-//	2010-03-20	set length of token field for words, two words, string
-//				constants, one and two character operators
-//
-//	2010-03-21	FIXME removed an error check for translator simple expression
-//				testing
-//
-//	2010-04-16	removed the unexpected character errors in scan_command() that
-//				was occurring in a statements like "A,B=3" because these were
-//				not valid immediate commands, so these errors were removed to
-//				let the Translator process it (and report an error as necessary)
-//
-//	2010-05-29	corrected a problem in the get_number() function where a
-//				constant of a single '0' caused "invalid leading zero in numeric
-//				constant" error, the solution was to check if the next character
-//				is a digit, the number is complete, otherwise an error occurs
-//
-//	2010-06-25	TableSearch replaced with SearchType
-//
-//	2011-01-11	set token length for identifiers and number constants
-//
-//	2011-02-26	changed all table index to code, search() now returns code
-//
-//	2011-03-14	also set token length for FN identifiers
-//
-//	2011-03-26	modified get_identifier() to not store the open parentheses of
-//				  DefFuncP and Paren token types
-//	2011-03-27	modified get_number() to look for a negative sign in front of
-//				  constants if the new operand_state flag is set
-//	2011-06-07	added checks for maximum integer in scan_command() and
-//				get_number(), necessary when compiling on with 64-bit
-//	2012-10-31	added 'const' to 'char *' variables (input not modified)
-//	2012-11-01	removed immediate command parsing
-//				replaced String, char processing with QString and QChar
-//				renamed variables and functions to Qt style naming
+//	2010-03-01	initial version
 
 #include "parser.h"
 #include "table.h"
diff --git a/regtest.bat b/regtest.bat
index 9683089..56df06c 100644
--- a/regtest.bat
+++ b/regtest.bat
@@ -20,20 +20,7 @@ rem
 rem
 rem  Change History:
 rem
-rem  2010-05-29  initial release
-rem  2010-06-10  added translator tests 10 and 11
-rem  2010-06-29  added translator test 12
-rem  2010-07-04  added translator test 13
-rem  2011-01-04  added translator test 14
-rem  2011-02-05  added translator test 15
-rem  2011-03-20  added translator test 16
-rem  2011-03-27  added translator test 17
-rem
-rem  2012-10-13  modified to change in test code that now reads test inputs
-rem                from test input files
-rem              removed specific test numbers, batch file now runs tests for
-rem                add the *.dat files present in the test directory
-rem              added compare for expression tests
+rem  2010-05-29  initial version
 rem
 rem
 rem  Usage:
diff --git a/regtest.in b/regtest.in
index a4a7c24..463f482 100755
--- a/regtest.in
+++ b/regtest.in
@@ -20,26 +20,7 @@
 #
 #  Change History:
 #
-#  2010-05-29  initial release
-#  2010-06-10  added translator tests 10 and 11
-#  2010-06-29  added translator test 12
-#  2010-07-04  added translator test 13
-#  2011-01-04  added translator test 14
-#  2011-01-09  changed name of executable from ibcp to ibcp.exe to make
-#              it work properly on Linux (this still works under windows;
-#              before the .exe was being added automatically)
-#  2011-02-05  added translator test 15
-#  2011-03-20  added translator test 16
-#  2011-03-27  added translator test 17
-#
-#  2012-10-13  renamed to regtest.in so that source directory can be
-#              confingured when cmake is run; replaced the parser and
-#              translator test loops with a single loop that tests all the
-#              available *.dat test input files
-#  2012-10-22  added "./" in front of "ibcp" so that program can be run without
-#              having to have "." in the current PATH
-#
-#  2012-10-29  added version output
+#  2010-05-29  initial version
 #
 #
 #  Usage:
diff --git a/rel_notes.txt b/rel_notes.txt
index 3ec7b14..841b147 100644
--- a/rel_notes.txt
+++ b/rel_notes.txt
@@ -20,6 +20,7 @@ see <http://www.gnu.org/licenses/>.
 
 Planned Roadmap (needs to redone):
 
+	Implement GUI
 	Translator - Colons (Parser issues, Token Status Enumeration)
 	Encoder - (for commands implemented so far)
 	Dictionary Definition (variables and arrays)
@@ -36,6 +37,34 @@ Planned Roadmap (needs to redone):
 	Command - Single line DEF FN
 	To be defined...
 
+	Note: For this release on, changes to individual source files will no
+	longer be listed (there are too many files).  However, changes to the
+	major classes will be included.  Complete details of the changes can be
+	found in the git repository at https://github.com/thunder422/ibcp.
+
+
+Release 0.2.0 (2012-12-09)
+
+	Project developmental release - the project was transitioned to using
+	the Qt graphical development toolkit.  This includes using the Qt tool
+	classes instead of the C standard library functions.  Implementation
+	of the GUI was started, but only the about box is functional when the
+	program is started with no command line options.  The following
+	additional major changes were made in this release:
+
+	  - new tester, command line and main window classes
+	  - class definitions put into their own header files
+	  - translator token and command handlers in their own source files
+	  - test functions put into new tester class
+	  - list, stack and string classes replaced with Qt classes
+	  - variable and function names renamed using camel casing
+	  - main source file changed from ibcp.cpp to main.cpp
+	  - header change commands were removed from source files
+	    (see the git repository for details of changes)
+	  - cmake now detects when version number mismatches with git repository
+	  - new memory leak detection test script
+	  - test programs and results removed (no longer applicable)
+
 
 Release 0.1.16 (2011-03-25)
 
diff --git a/table.h b/table.h
index 5856ca6..009d948 100644
--- a/table.h
+++ b/table.h
@@ -21,11 +21,6 @@
 //	Change History:
 //
 //	2012-11-03	initial version (parts removed from ibcp.h)
-//	2012-11-04	moved all table specific (private) definitions to table.cpp
-//				moved code for access functions to table.cpp
-//				renamed variables and functions to Qt style naming
-//				changed the rest of char* to QString
-//	2012-11-04	modified table class so that only one instance can be created
 
 #ifndef TABLE_H
 #define TABLE_H
diff --git a/test_names.awk b/test_names.awk
index 680e49c..83e0d51 100644
--- a/test_names.awk
+++ b/test_names.awk
@@ -23,24 +23,6 @@
 #
 #  2010-09-06  initial release (started with codes.awk)
 #
-#  2011-02-26  rewrote script to generate test_codes.h directly from the
-#              table.cpp source file (all code performed in BEGIN block)
-#
-#  2011-06-12  for use with cmake, added an optional path to the source files
-#              as the first argument on the awk command line
-#  2012-10-06  changed the length argument of the substr() that extracts the
-#              name of the code from the "_Code" suffix so that it will also
-#              work with a DOS format file that contains the extra CR character
-#              on the end of the line, because if the RS variable was set to
-#              "/r/n" then this script no longer works on Linux
-#  2012-10-14  renamed from test_codes.awk and now writes test_names.h
-#              changed to write complete code_name[] array along with generating
-#              the tokentype_name[] and datatype_name[] arrays from ibcp.h
-#  2012-10-14  continued lines cause problems on Windows, so these were removed
-#              by using an output variable to hold the "test_names.h" name
-#
-#  2012-11-03  modified for header file location changes of enumerations
-#
 #
 #  Usage: awk -f test_names.awk
 #
diff --git a/token.h b/token.h
index 414f794..97bb3a9 100644
--- a/token.h
+++ b/token.h
@@ -21,7 +21,6 @@
 //	Change History:
 //
 //	2012-11-02	initial version (parts removed from ibcp.h)
-//	2012-11-03	changed to class, renamed variables and functions to Qt style
 
 #ifndef TOKEN_H
 #define TOKEN_H
diff --git a/translator.cpp b/translator.cpp
index 98cc78e..e045d8a 100644
--- a/translator.cpp
+++ b/translator.cpp
@@ -20,358 +20,7 @@
 //
 //	Change History:
 //
-//	2010-03-01	initial release
-//
-//	2010-03-20	continued development - functions now implemented for
-//				handling simple expressions (basic operands and operators)
-//
-//	2010-03-21	needed to pop final result off of done stack, added checks
-//				added check for EOL at begin of line
-//				changed unary operator check, corrected in add_operator()
-//
-//	2010-03-25	added parentheses support
-//				added switch for special operator token processing
-//
-//	2010-03-26	corrected issue with setting last_precedence by moving it from
-//				being set with '(' to being set with ')' added
-//				do_pending_paren() to replace code in three locations, and call
-//				from two new locations
-//
-//	2010-04-02	added array and function support
-//				added count stack to keep track of (count) commas within
-//				  arrays (subscripts) and functions (arguments), and to make
-//				  sure commas are not found within regular parentheses
-//				modified close parentheses processing to handle the operands
-//				  (subscripts and arguments) within arrays and functions
-//
-//	2010-04-04	added internal function number of arguments checking
-//				changed argument of add_token() to reference so that it can
-//				  modified to point to the token with the error
-//
-//	2010-04-11	added assignment operator handling including multiple
-//				assignments (additional comma handling)
-//	2010-04-12	added reference support
-//	2010-04-13	changed add_operator() argument to reference so that different
-//				token can be returned
-//				added code to add_operator() to check for references for
-//				assignment operator
-//	2010-04-14	added code to add_operator() to check for references for
-//				list assignment operator
-//	2010-04-16	added mode checking for the open parentheses token processing
-//				clear reference flag to top item in done stack for close paren
-//				added count stack is empty check before checking mode for open
-//				parentheses, equal operator and no special operator
-//
-//	2010-04-25	set default data type for operands
-//				corrected memory leak of comma and close parentheses tokens
-//				added data type handling for internal functions and operators
-//				implemented new find_code() and match_code() functions for data
-//				  type handling
-//	2010-04-26	changed bug error names
-//
-//	2010-05-08	implemented data type handling for assignment operators
-//				modified find_code() to handle references on first operand
-//				modified find_code() to get number of associated codes
-//				modified match_code() to handle references on first operand
-//				added last_operand argument to find_code()
-//
-//	2010-05-15	added temporary string support:
-//				changed output list and done stack from Token* to RpnItem*
-//				for arrays and functions, save pointers to operands
-//				for internal functions with string operands, saved operands
-//				for operators with string operands, saved operands
-//				moved find_code() operand[] array to class for all to access
-//				removed operandp[] argument from match_code(), now uses member
-//				added entries to match_code() conversion code table for TmpStr
-//
-//	2010-05-16	corrected problem where saved operand was not pointing to a
-//				conversion code that was inserted after the operand - the
-//				operand was set to the return value of the append call when the
-//				conversion code is inserted
-//
-//	2010-05-19	added sub-string support:
-//				in find_code() rearranged first operand code and added check for
-//				  a sub-string function to get the string operands reference
-//				  flag
-//				added SubStr entries to the convert code table in match_code()
-//	2010-05-21	when an error occurs with a sub-string function where its string
-//				operand cannot be assigned, the change the token with the error
-//				to the string operand that can't be assigned instead of pointing
-//				to the sub-string function
-//
-//	2010-05-22	corrected issue where string list assignments were not saving
-//				  all of the operands instead of just the last two
-//				updated add_operator() to handle mix string list assignments
-//
-//	2010-05-28	changed hold_stack and done_stack from List to SimpleStack,
-//				  which required some small changes of push and pop calls
-//				replaced switch and case code to token handler functions
-//				moved special token processing in switch statement to individual
-//				  token handler functions, switch statement was removed
-//	2010-05-29	moved no special operator code was also moved to a token handler
-//				  function
-//				updated for moving/renaming Translator::Status and
-//				  Translator::Mode to TokenStatus and TokenMode
-//				changed do_pending_paren() from appending dummy parentheses
-//				  token to output list to setting parentheses sub-code of the
-//				  last token appended to list
-//				changed argument of do_pending_paren() from table entry index
-//				  to token pointer (which was only used to get the precedence);
-//				  this corrects a problem where the token on top of the hold
-//				  stack was an identifier with parentheses (array or function)
-//				  because these tokens don't have an index value, therefore the
-//				  precedence access function needs to be used, which takes these
-//				  token types into account
-//				added setting of comma sub-code flag of assignment list token
-//				  when receiving an equal in comma assignment mode
-//				added section of code at beginning of add_token for doing
-//				  initial processing for Command tokens when received,
-//				  if command has token_mode table entry value then command is
-//				  pushed on new command stack, otherwise unexpected command
-//				  occurs
-//				added check to add_operator() that if operator is an assignment
-//				  (Reference_Flag is set) then check if there is a LET command
-//				  on the command stack, pop it, and set LET sub-code flag on
-//				  assignment operator token
-//
-//	2010-06-01	corrected a bug when an operand is processed, if the mode is
-//				  currently Command mode, the mode needs to be changed to
-//				  Assignment mode to prevent commands from being accepted
-//				additional support for commands and command stack
-//				added support for print-only functions
-//	2010-06-02	added token handler for semicolon (for PRINT command)
-//	2010-06-03	added PRINT support for comma
-//				created expression_end() from parts of EndOfLine_Handler for
-//				  end of expression checks (also used by comma and semicolon)
-//	2010-06-04	implemented new add_print_code() function to be used by
-//				Comma_Handler(), SemiColon_Handler() and Print_CmdHandler()
-//	2010-06-05	implemented Assign_CmdHandler() and Print_CmdHandler()
-//				push assignment token to command stack instead of done stack so
-//				  the end of statement is handled properly and simply
-//	2010-06-06	correctly check for expression only mode at end-of-line
-//				end-of-line no longer pops a result off from done stack, which
-//				  should now be empty (commands deal with done stack) except for
-//				  special expression only mode
-//				added support for end expression flag - codes that can end an
-//				  expression (currently comma, semicolon and EOL)
-//				switch back to operand state after comma and semicolon
-//	2010-06-08	set a print function flag in print command stack item to
-//				  indicate a print function flag was just added to the output,
-//				  which semicolon checks for and sets the semicolon sub-code
-//				  flag on the print function token in case the print function is
-//				  at the end of the print statement
-//				moved end expression flag check to operand section before unary
-//				  operator check, if in the middle of a parentheses expression
-//				  or array/function, then return expected closing parentheses
-//				  error
-//	2010-06-09	changed count stack from holding just a counter to holding the
-//				  counter and the expected number of arguments for internal
-//				  functions, so that the number of arguments for internal
-//				  functions can be checked as each comma token is received
-//	2010-06-10	added new state FirstOperand set at the beginning of an
-//				  expression
-//				renamed errors for clarity
-//	2010-06-11	added check to detect invalid print-only functions sooner
-//	2010-06-13	changed to push AssignList token to hold stack when first comma
-//				  token is received instead of when equal token is received
-//				  (necessary for proper error condition tests)
-//				Let_CmdHandler implemented, necessary to catch errors when a
-//				  LET command statement was not completed correctly
-//	2010-06-14	added check for immediate command token (append to output list
-//				  and return Done)
-//				added paren_status() from duplicated code in add_token() and
-//				  expression_end()
-//	2010-06-10/14  various changes to return appropriate easy to understand
-//				   error messages
-//
-//	2010-06-24	corrected errors for internal functions not in expressions
-//				  except for sub-string functions that can be used for
-//				  assignments
-//				at end of expression, added check if in assignment due to an
-//				  an array or sub-string function, to report correct errors
-//	2010-06-26	added end of statement checking in the binary operator section
-//				made more error reporting corrections related to checking if the
-//				  done stack is empty to determine the correct error to report
-//	2010-06-29	added support for expression type
-//				added data type to expression type conversion array
-//	2010-06-30	continues to add support for expression type
-//				added expected variable messages for assign list errors
-//	2010-07-01	moved cvtcode_have_need[], equivalent_datatype[] to begin of
-//				  source file so all can access
-//				implemented new assign and assign list code to Comma_Handler(),
-//				  Semicolon_Handler() and Assign_CmdHandler() with support
-//				  functions set_assign_command() and check_assignlist_token()
-//				removed last_operand argument from find_code(), which was for
-//				  assign list support
-//	2010-07-02	added more expr_type checking code
-//	2010-07-03	added errstatus_datatype[]
-//	2010-07-04	temporarily removed all expr_type code (may be removed)
-//	2010-07-05	many changes for error reporting
-//	2010-07-06	many changes for error reporting
-//
-//	2010-07-29	set reference of sub-string tokens within assignments so that
-//				  first operand (string being assigned) can be checked
-//	2010-08-01	removed EqualAssignment, replaced CommaAssignment with
-//				  AssignmentList (multiple equal assignment statements no longer
-//				  being supported)
-//	2010-08-07	begin modification of find_code() to only process one operand
-//				  at a time
-//				removed match_code() since it's not necessary to match all
-//				  operands of operators or internal functions
-//	2010-08-14	changed the way multiple argument codes are handled (due to
-//				  processing one operand at a time)
-//	2010-08-30	begin implementation of process_final_operand() to handle
-//				  processing of last operand of operand or internal function
-//	2010-09-11	begin implementation of leaving only string operands on stack
-//				  to be attached to an operand or internal function token
-//	2010-10-01	corrected code to return expected type errors
-//	2010-10-10	check first operand of sub-string assignment is not a string
-//				  variable
-//	2010-12-24	corrected process_final_operand() to pop the correct number of
-//				  string operands to attach
-//	2010-12-25	modified to leave string operand on stack for sub-string
-//				  functions and not push the sub-string token to the done stack
-//
-//	2010-12-28	corrected call to process_final_operand() in add_print_code()
-//	2010-12-29	modified EndOfLine_Handler() to wait to pop the command on top
-//				 of the command stack until after the command handler is called
-//	2011-01-01	made None_DataType return expected error instead of bug error
-//	2011-01-03	implemented new function get_expr_datatype() to get the current
-//				  datatype of the expression by looking back at what was
-//				  processed so far; called when an error occurs so that the
-//				  appropriate error can be reported)
-//	2011-01-04	assign datatype to open parentheses when being pushed to the
-//				  hold stack (to be used later when getting the datatype for an
-//				  expression)
-//
-//	2011-01-08	get datatype of expression to get appropriate error when a
-//				  binary operator occurs when an operand is expected
-//				corrected paren_status() when at last argument of first form
-//				  of a function with multiple forms to report the appropriate
-//				  error (that a comma could also be expected)
-//				in Comma_Handler() when an error occurs and the done stack is
-//				  empty, get data type of expression to get appropriate error
-//				in Comma_Handler() when moving to the next multiple form of a
-//				  function, corrected the setting of the index on count stack
-//
-//	2011-01-13	started implementation of storing first and last operands
-//				converted hold stack from holding token pointers to holding
-//				  hold stack items (with a token and first pointer)
-//				added argument to process_final_operand() for passing in an
-//				  operand (either first operand or CloseParen token)
-//	2011-01-14	implemented new process_first_operand() with code from
-//				  Operator/Equal handlers
-//	2011-01-15	converted done stack from holding output list element pointers
-//				  to holding done stack items (with element, first, and last
-//				  pointers)
-//				added arguments to find_code() for return first/last operands
-//				implemented new delete_close_paren() to check for and delete a
-//				  CloseParen token that may be in done stack last token
-//	2011-01-16	in delete_close_paren(), also check if token has table entry
-//				added reporting range of tokens for expression type errors
-//				in clean_up(), fixed to not delete tokens until after stacks
-//				in EndOfLine_Handler(), corrected cleanup for expression mode
-//	2011-01-20	in process_final_operand(), current unary operators to only set
-//				  last operand (first operand should be the unary operator)
-//	2011-01-22	in do_pending_paren(), corrected to delete pending paren token
-//				  when setting parentheses sub-code
-//				implement new function delete_open_paren()
-//				in delete_close_paren(), check if close paren token still being
-//				  used as pending paren (don't delete, just clear last sub-code)
-//				modified find_code() to use work first/last token pointers
-//	2011-01-23	in CloseParen_Handler(), save both open and close paren tokens
-//				  as first/last operands (don't delete open paren token),
-//				  and set last and used sub-code flags of close paren token so
-//				  it doesn't get deleted until its not used anymore
-//	2011-01-30	corrected token memory leaks
-//	2011-02-01	corrected token memory leaks
-//	2011-02-02	in find_code() upon a no match error, removed checks if last
-//				  token added was sub-string; not necessary with first/last code
-//	2011-02-05	in process_final_operand() added check if token is assignment
-//				  operator to not push to done stack (strings still attached)
-//				replaced most code in Assign_CmdHandler() with call to
-//				  process_final_operand()
-//
-//	2011-02-10	implemented new call_command_handler() for comma and semicolon
-//				  token handlers to call for command on top of command stack
-//				moved code from comma and semicolon token handlers to assign
-//				  and print command handlers (into new switch statements)
-//	2011-02-11	in Assign_CmdHandler(), when an error occurs, need to set set
-//				  the command item's token to the passed in token
-//				in Print_CmdHandler(), make sure good status is returned when
-//				  add_print_code() returns null status for nothing done
-//	2011-02-13	moved code from add_token() to add_operator(), which was renamed
-//				  to process_operator()
-//				moved code from add_token() to process_binary_operator()
-//
-//	2011-02-22	changed all pop() calls not using return value to null_pop()
-//	2011-02-26	updated for change of table index to code
-//	2011-03-01	initialized new element member for command stack item
-//				removed code member from command stack item (now token->code)
-//				started implementation of Input_CmdHandler()
-//	2011-03-03	changed process_final_operand() from checking for print
-//				  functions to functions with no return value, fixed problem
-//				  with deleting second token when not set (for print functions)
-//	2011-03-05	added non-empty hold stack to print function token check
-//				added "_State" to enum Translator::State values
-//				added new EndExpr_State, check to process_binary_operator()
-//				replaced PrintOnlyIntFunc with expected xxx expression error
-//	2011-03-07	implemented reference mode
-//				corrected problem with print functions within parentheses
-//	2011-03-09	moved sub-string function operand check to begin of
-//				  process_binary_operator() to prevent acceptance of operators
-//	2011-03-10	removed unexpected command error, just pass command token on
-//	2011-03-11	changed to assignment mode after an operand is received while
-//				  in command mode, changed code for with mode change
-//				return appropriate error for mode in process_operand() and
-//				  Comma_Handler()
-// 	2011-03-12	added new operator_error() to determine error when token is not
-//				  an expected operator from parts of process_binary_operator()
-//				  and now also called from process_operator() for command tokens
-//				  that have no token handler
-//				check for command token with no handler in process_operator()
-//				implemented new operator_error() from parts of
-//				  process_binary_operator() so that code in process_operator()
-//				  can also call it
-//				removed extra empty count stack mode check from middle of
-//				  processed_unary_operator() - now at begin of function
-//	2011-03-13	added check to make sure first operand of a sub-string function
-//				  assignment is not a unary operator in process_unary_operator()
-//				changed non-reference return error in find_code()
-//	2011-03-14	return error at parentheses for DefFuncP tokens in
-//				  process_operand() and check_assignlist_item()
-//				don't set DefFuncP reference flag in CloseParen_Handler()
-//	2011-03-19	implemented end statement state
-//				completed implementation of Input_CmdHandler()
-//				renamed EndStatment_Flag to EndStmt_Flag
-//	2011-03-20	don't delete EOL token if not EOL code in EndOfLine_Handler()
-//				changed to insert InputBegin at beginning of statement,
-//				  required initializing CmdStackItem element to output->last(),
-//				  and new InputBegin_CmdFlag support
-//				set reference flag of input assign to handle variable correctly
-//				added reference mode support to Comma_Handler()
-//	2011-03-21	set reference mode after string prompt in Input_CmdHandler()
-//	2011-03-22	set Operand_State after string prompt in Input_CmdHandler()
-//				renamed FirstOperand_State to OperandOrEnd_State
-//	2011-03-24	set token with error in cmd_item to return in Input_CmdHandler()
-//				added reference mode to end_expression_error()
-//	2011-03-25	removed token delete with prompt error in Input_CmdHandler()
-//
-//	2011-03-26	modified the token error pointer for DefFuncP tokens to
-//				  to compensate for the lack of the open parentheses that is no
-//				  longer stored in the token string
-//	2011-03-27	modified process_operator() to not allow unary operators to
-//				  force other tokens from hold stack
-//
-//	2012-10-25	corrected if statements that were checking token code without
-//				  making sure code was valid (some token types don't used code)
-//	2012-10-27	converted output rpn list from List class to QList
-//				also required changes to done_stack (element list pointer to
-//				  rpn item pointer), cmd_stack (element list pointer to index
-//				  into output rpn list), and RpnItem.operands[] (element list
-//				  pointer array to RpnItem pointer array)
-//	2012-10-29	converted translator stacks from Stack class to QStack
-//	2012-11-01	removed immediate command support
+//	2010-03-01	initial version
 
 #include "translator.h"
 #include "token.h"