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revision 1.5 by gary, Sat Dec 2 02:13:16 2000 UTC revision 1.6 by gary, Wed Sep 5 17:43:37 2001 UTC
# Line 1  Line 1 
1  GNU m4 TODO - Tasks that need implementing.             -*- outline -*-  GNU m4 TODO - Tasks that need implementing.             -*- outline -*-
2  Copyright 2000 Free Software Foundation, Inc.  Copyright 2000, 2001 Free Software Foundation, Inc.
3    
4  Tell the maintainers at <bug-m4@gnu.org> if you feel like volunteering  Tell the maintainers at <bug-m4@gnu.org> if you feel like volunteering
5  for any of these ideas or if you have others to add.  for any of these ideas or if you have others to add.
# Line 69  for any of these ideas or if you have ot Line 69  for any of these ideas or if you have ot
69          maintaining the string lengths, and avoiding strlen, strcpy,          maintaining the string lengths, and avoiding strlen, strcpy,
70          etc.).          etc.).
71    
   + The symbol table needs a complete reimplementation, so that it tracks  
     the module responsible for each of the symbols it contains.  This would  
     not only speed up module unloading immensely, but simplfy the code  
     considerably too.  
   
   + Much of the code could be improved by providing a resizing hash table  
     ADT, and  wrapping symtab and the various searchable internal  
     structures around it.  
   
72    + --with-gmp is surplus to requirements, mpeval should always be built --    + --with-gmp is surplus to requirements, mpeval should always be built --
73      either with libgmp if it is available, or else without it.  Whether      either with libgmp if it is available, or else without it.  Whether
74      or not to use mpeval is then determined at runtime, if the user tries      or not to use mpeval is then determined at runtime, if the user tries
75      to `load(`mpeval')'.      to `load(`mpeval')'.
76    
   + The `shadowed' flag in every symbol is only used by m4_dump_symbol(),  
     and could be determined instead by the presence of an identically  
     named symbol immediately proir to this one in the hash bucket.  So  
     doing would slow down dumpdef, but speed up the rest of the symbol  
     handling code, and reduce the memory overhead per symbol.  
   
77    
78  * MODULE SPECIFIC ISSUES  * MODULE SPECIFIC ISSUES
79    
# Line 104  for any of these ideas or if you have ot Line 89  for any of these ideas or if you have ot
89    
90          append(__modulepath__, `/some/modules/live/here')          append(__modulepath__, `/some/modules/live/here')
91    
   + m4_finish_module should take an obstack argument to allow a module  
     to pass an expansion back to the caller.  
   
92    + Module autoloader.  This would allow an m4 core with no builtins except    + Module autoloader.  This would allow an m4 core with no builtins except
93      for loadmodule().  A default startup script would mark the recognised      for loadmodule().  A default startup script would mark the recognised
94      set of builtins for autoload from the installed module directory on first      set of builtins for autoload from the installed module directory on first

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