Define
TempleOS has a string indirection feature implemented with the same hash symbol 
table entry as #define macros, HTT_DEFINE_STR.  Support for string lists is also 
provided, but it's not very efficient, though, you can make a hash table with a 
list using HashDefineLstAdd().  See ::/Adam/DolDoc/DocInit.HC.

If you have an @ as the first char of a define list entry, it is an alias for 
the prev entry num.

Each task can load its own Define strings.  Remember, when a Hash table is 
searched for a string, if it is not found, the parent task's table is searched.

The DolDoc framework supports text that changes based on entries in the task's 
symbol table.  Set a text entry with a D= arg, as in $TX,"",D="DD_MYSTRING"$.  
See ::/Demo/DolDoc/DefineStr.HC, ::/Adam/ADefine.HC and ::/Doc/MemOverview.DD.

See ::/Demo/Define.HC.

Define              Funct Look for DEFINE named in hash table, return ptr string.
DefineCnt           Funct Return cnt of entries in define list.
DefineLoad          Funct Create DEFINE hash entry with string.
DefineLstLoad       Funct Create DEFINE list. Not efficient, but handy.
DefineMatch         Funct Find match for string in define list.
DefinePrint         Funct Create DEFINE entry with Print()ed string.
DefineSub           Funct Return DEFINE list entry indexed by number.
HashDefineLstAdd    Funct Add define list to a hash table. See ::/Adam/DolDoc/DocInit.HC.