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CPM OPERATING SYSTEMS/CPM 68K/1.0X SOURCES/v103/cpp/log

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+.he "C68 Preprocessor"Change Log"Page %"
+.de bg
+.sp
+.in +5
+..
+.de eg
+.sp
+.in -5
+..
+1. 4/20/82 - Long string bug
+.bg
+No error message for long string, caused in getstr checking for
+"i-- > 0" then "i == 0".  Also increased TOKSIZE to 300 to match
+setting in parser.
+.eg
+2. 4/21/82 - Invalid characters not invalid
+.bg
+It was assumed that the only characters that would go thru the
+preprocessor were those that were valid for the compiler.  Using
+preprocessor with the assembler (i.e. #define x $1) does not
+work.  Fixed cmap table.
+.eg
+3. 4/26/82 - Assembler temps not being deleted
+.bg
+Main not deleting assembler temps if more than one C file specified.
+Added unlink to delete assembler temps.
+.eg
+4. 4/28/82 - Preprocessor enhancements
+.bg
+Changed '-D' flag to '-N' flag, Added '-D' flag to define a name.
+Added built-in macros Newlabel[(num)] and Label[(num)] to
+generate label numbers for assembler.
+.eg
+5. 5/8/82 - Added handling of ".s" files
+.bg
+Added code to check for ".s" files, which go thru the preprocessor
+and then thru the assembler.
+.eg
+6. 5/8/82 - Suppress '\01' on macro file for -P flag
+.bg
+Added check in domacro to check for pflag, and if it is on, suppress
+the outputting of '\01' to expanded macro file.
+.eg
+7. 5/20/82 - defines gobbling up parenthesised expressions
+.bg
+the syntax: #define x 1 (newline) x(1) resulted in only "1".  This was
+because expand always checked for a left parenthesis for any macro name.
+Added NOARG flag at beginning of macro or argument count in dodefine
+(although this is not used).  The arguments are only collected if there
+were args (or left parenthesis-right parenthesis) seen on the macro
+definition.
+.eg
+8. 6/7/82 - multiple assembler files leaving temps
+.bg
+If more than one assembler file was given, the macro temp file was left.
+Fixed problem in main.
+.eg
+9. 7/8/82 - added one pass logic
+.bg
+Added logic in main to add the "-1" flag, which runs the one pass
+parser and code generator, which is 10% faster.
+.eg
+10. 7/17/82 - "-o" flag wiped out C file
+.bg
+The command "c68 -o x.c" would wipe out x.c.
+Added code to main to check argument given for -o flag, made output file
+the file name stripped of the ".c" or ".s".
+.eg
+11. 7/28/82 - checked for rubouts ignored
+.bg
+C68 was unconditionally catching rubouts whether its rubout signals were
+ignored or not.
+This had the (unfortunate) side effect of killing C68 in background
+when you did a rubout from the terminal.
+Added check to signal call to check if signal was ignored, and if so
+the ignore condition was restored.
+.eg
+12. 8/26/82 - libraries not being handled properly
+.bg
+The -lX flag would be placed at the beginning of the loader's argument
+list, thereby missing the library.
+Changed main so that the loader arguments would be passed in the same
+order as the c68 command line and the c068.o would be added before the
+first .o file specified.
+Also checked for: -o x.o and stripped off .o for output file name.
+.eg
+13. 9/1/82 - changed misleading "can't fork" message
+.bg
+Changed message in fexec so that "can't fork" message is now
+"can't maketask [filename]".
+This is to keep John Happy...
+.eg
+14. 11/15/82 - Multiple compiles define carry overs
+.bg
+The symbol table was not being cleared of defines which occured in
+previous source files in a multi-source compile.
+.eg
+15. 11/15/82 - Paths of generated files
+.bg
+All files are now generated in the users current working directory
+instead of the source directory by default.
+.eg
+16. 11/24/82 - Include file search paths
+.bg
+Added the -Idir flag to enable the user to alter the search path.
+Also added searching of the parent directory of include files
+specified using quotes.
+.eg
+17. 12/2/82 - Include file error messages
+.bg
+Added the include file name and line number to the preprocessor output
+in order to generate error messages which specified the exact location
+of errors which involve include files.  Also suppressed output of
+empty include file lines to the preprocessor temporary output file.
+.eg
+18. 12/28/82 - Temp files generated in the current directory
+.bg
+In generating all other files into the current directory the temp files
+also were generated there.
+.eg
+18. 1/7/83 - Floating Point flags
+.bg
+Added the -e and -f flags for specification of the IEEE or FFP floating
+point packages (constant evaluations and libraries).
+.eg
+19. 1/17/83 - Optimization flag
+.bg
+Recognize the -O optimization flag and ignore it.
+.eg
+20. 1/20/83 - Compatibility flags
+.bg
+Added the -3, -5, -6, -7 flags for system 3, system 5, version 6 and
+version 7.  Adds an include file on the search list, as well as a 
+default library.
+.eg
+21. 1/24/83 - include file error messages
+.bg
+Added explicit line number and file name's within the error messages if
+processing an include file.
+.eg
+22. 1/24/83 - Symbol Table overflow
+.bg
+Added clearing of the symbol table between compiles (c68 *.c).
+.eg
+23. 2/7/83 - Preprocessor error status
+.bg
+If error's occurred in the preprocessor pass the exit status wasn't
+reflecting it.
+.eg
+24. 2/22/83 - #line macro
+.bg
+Implemented the "#line LINENUM [FILENAME]" macro.
+.eg
+25. 2/23/83 - "-E" option flag
+.bg
+Implemented the "-E" flag, only the preprocessor is executed and the
+output is written to the standard output device.
+.eg
+26. 3/3/83 - bus error on non-existent file error message
+.bg
+Error required certain variables to have been initialized in order to
+generate the filename and the line number on which the error occured.
+.eg
+27.  3/28/83 - added two predefined macro's __FILE && __LINE
+.bg
+Added the two macro's __LINE and __FILE which are respectively
+interpreted as the current line number and the current file name.
+They may be redefined if desired as this test takes place after
+the user defined macro expansions.
+.eg
+28.  3/29/83 - embedded macro arguments
+.bg
+Arguments from #define macro's which are not individual tokens but which
+are embedded in quoted or non-quoted strings are now being expanded.
+.eg
+29.  3/29/83 - white space in macro call					[vlh] 4.1
+.bg
+Allows tabs and spaces between a macro call identifier and the left
+parenthesis associated with it's argument list.
+.eg
+30.  4/29/83 - embedded macro arguments						[vlh] 4.1
+.bg
+An underscore '_' is no longer seen as a legitimate symbol separator.
+Macro's which are embedded in strings are now expanded properly.
+.eg
+31.  6/13/83 - split preprocessor from main driver          [vlh] 4.2
+.bg
+For more flexibility...
+.eg
+32.  7/6/83 - #line											[vlh] 4.2
+.bg
+A blank line was not being added to the file for each line which was being
+redirected or for the #line macro, and so for each case the line number
+would be off by two from the original file and error's reported would
+have the wrong line number associated with them.
+Reworked the way #line was being handled.  Now works properly if the line
+referenced has a macro on it.  Does not lose lines.
+.eg
+33.  7/15/83 - '-C' option									[vlh] 4.2
+.bg
+Added the '-C' option to the preprocessor.  This caused a major rewrite of
+the way include files and the #line option were handled.  The preprocessor
+now outputs lines of the form: # 45 "file.h" for each include file, plus
+one at the top of each source file, and one after each return from an include
+file.  The '-C' flag causes comments to be left in the output.
+.eg
+34.  7/18/83 - arguments 									[vlh] 4.2
+.bg
+The arguments are now handled as "cpp -[args] source".  The destination
+file is no longer required, the results are always written on the '.i'
+name of the source.
+.eg
+35.  7/20/83 - -I option									[vlh] 4.2
+.bg
+The concluding slash is no longer required.
+.eg