X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ian/git?p=subdirmk.git;a=blobdiff_plain;f=README;h=d85a68804c4e4bf8adff2480fc37fcf9bcef0ed7;hp=b42356dc5e15ef63ee3bbb89b668551ddf2e964a;hb=2c8db0f89fdcb949f0e8f82a223bca194a7a28c8;hpb=694e9efc16bd0cc1c202d047afa1ed1688046e9e

diff --git a/README b/README
index b42356d..d85a688 100644
--- a/README
+++ b/README
@@ -222,6 +222,7 @@ STUFF $ THINGS	..	STUFF $$ THINGS
 &{..$..}	=>	${eval ${call ..$$..}}
 	(matches { } pairs to find the end)
 	content is $-doubled (unless it contains &$- to turn that off)
+	cf &(...), see "Convenience syntax for eval", below.
 
 Together &:macro and &${...} provide a more reasonable macro facility
 than raw make.  They solve the problem that make expansions cannot
@@ -245,6 +246,18 @@ A few contexts do not support $-doubling, such as directive arguments
 or places where this might imply $-quadrupling.  (There is no way to
 get $-quadrupling.)
 
+Convenience syntax for eval
+- - - - - - - - - - - - - -
+
+&(thing		=>	$(call thing
+&( thing	=>	$(call thing
+	and specially:
+&(&lc		=>	$(call sub_dir_lc	or $(call TOP_lc
+&( &lc		=>	$(call sub_dir_lc	or $(call TOP_lc
+	even though lc would normally be thought a filename
+
+Unlike &{...}, this does not involve any dollar-doubling.
+
 
 Invocation, "recursive" per-directory targets
 ---------------------------------------------