aboutsummaryrefslogtreecommitdiff
path: root/amforth-6.5/examples/string-rec.frt
diff options
context:
space:
mode:
Diffstat (limited to 'amforth-6.5/examples/string-rec.frt')
-rw-r--r--amforth-6.5/examples/string-rec.frt28
1 files changed, 28 insertions, 0 deletions
diff --git a/amforth-6.5/examples/string-rec.frt b/amforth-6.5/examples/string-rec.frt
new file mode 100644
index 0000000..b1bd930
--- /dev/null
+++ b/amforth-6.5/examples/string-rec.frt
@@ -0,0 +1,28 @@
+
+\ use " as string delimiters. Everything
+\ between two " is a string. It replaces
+\ the forth command s" completly
+\ instead of s" foo" use "foo". The space
+\ after s" is no longer needed, instead it
+\ a part of the string. s" foo" and " foo"
+\ differ with the leading space in the latter
+
+\ strings live as long as the SOURCE is
+\ unchanged! Compilation is done to the
+\ flash if called in compile state.
+\ postponing a compiled string is not yet
+\ supported.
+
+\ #require recognizer.frt
+
+' noop
+:noname postpone sliteral ;
+:noname -48 throw ; recognizer: r:string
+
+: rec:string ( addr len -- addr' len' r:string | r:fail )
+ over c@ [char] " <> if 2drop r:fail exit then
+ negate 1+ >in +! drop \ reset parse area to SOURCE
+ [char] " parse \ get trailing delimiter
+ -1 /string
+ r:string
+;