anchor.diff:  .Interpolation Syntax
   [width="90%",cols="1,9",options="header"]
   |=============================================================================
  -|Syntax					|Effect
  -|+$(VAR:f)+				|Convert to forward slashes (+/+)
  -|+$(VAR:b)+				|Convert to backward slashes (+\+)
  -|+$(VAR:u)+				|Convert to upper case
  -|+$(VAR:l)+				|Convert to lower case
  -|+$(VAR:p<prefix>)+		|Prefix all values with the string +<prefix>+
  -|+$(VAR:s<suffix>)+		|Suffix all values with the string +<suffix>+
  -|+$(VAR:[<index>])+		|Select the item at the (one-based) +index+
  -|+$(VAR:j<sep>)+		|Join all values with +<sep>+ as a separator rather than space
  -|+$(VAR:A<suffix>)+		|Suffix all values with +<suffix>+ unless it is already there
  -|+$(VAR:P<prefix>)+		|Prefix all values with +<prefix>+ unless it is already there
  +|Syntax                 |Effect
  +|+$(VAR:f)+             |Convert to forward slashes (+/+)
  +|+$(VAR:b)+             |Convert to backward slashes (+\+)
  +|+$(VAR:u)+             |Convert to upper case
  +|+$(VAR:l)+             |Convert to lower case
  +|+$(VAR:p<prefix>)+     |Prefix all values with the string +<prefix>+
  +|+$(VAR:s<suffix>)+     |Suffix all values with the string +<suffix>+
  +|+$(VAR:[<index>])+     |Select the item at the (one-based) +index+
  +|+$(VAR:j<sep>)+        |Join all values with +<sep>+ as a separator rather than space
  +|+$(VAR:A<suffix>)+     |Suffix all values with +<suffix>+ unless it is already there
  +|+$(VAR:P<prefix>)+     |Prefix all values with +<prefix>+ unless it is already there
   |=============================================================================
   
   These interpolation options can be combined arbitrarily by tacking on several
  
positive.code: 
  -------------------------------------------------------------------------------
  Program {
  	Name = "HelloWorld",
  	Sources = { "hello.c" },
  }
  Default "HelloWorld"
  -------------------------------------------------------------------------------
  
negative.code: // vim: ts=4 expandtab
  
  Tundra, a build system
  ======================
  