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Diffstat (limited to 'softcore/prefix.fr')
| -rw-r--r-- | softcore/prefix.fr | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/softcore/prefix.fr b/softcore/prefix.fr new file mode 100644 index 000000000000..3c368d66ea75 --- /dev/null +++ b/softcore/prefix.fr @@ -0,0 +1,47 @@ +\ ** +\ ** Prefix words for ficl +\ ** submitted by Larry Hastings, larry@hastings.org +\ ** +\ (jws) To make a prefix, simply create a new definition in the <prefixes> +\ wordlist. start-prefixes and end-prefixes handle the bookkeeping + +variable save-current + +: start-prefixes get-current save-current ! <prefixes> set-current ; +: end-prefixes save-current @ set-current ; +: show-prefixes <prefixes> >search words search> drop ; + +start-prefixes + +S" FICL_WANT_EXTENDED_PREFIX" ENVIRONMENT? drop [if] + +\ define " (double-quote) as an alias for s", and make it a prefix +: " postpone s" ; immediate + + +\ make .( a prefix (we just create an alias for it in the prefixes list) +: .( postpone .( ; immediate + + +\ make \ a prefix, and add // (same thing) as a prefix too +: \ postpone \ ; immediate +: // postpone \ ; immediate + + +\ ** add 0b, 0o, 0d, and 0x as prefixes +\ ** these temporarily shift the base to 2, 8, 10, and 16 respectively +\ ** and consume the next number in the input stream, pushing/compiling +\ ** as normal +\ ** +\ ** __tempbase is precompiled, see prefix.c + +: 0b 2 __tempbase ; immediate +: 0o 8 __tempbase ; immediate + +[endif] + +: 0d 10 __tempbase ; immediate +: 0x 16 __tempbase ; immediate + +end-prefixes + |