diff options
Diffstat (limited to 'txr.1')
| -rw-r--r-- | txr.1 | 21 |
1 files changed, 15 insertions, 6 deletions
@@ -12099,13 +12099,15 @@ is the first argument of the inner function. Of course, if there are three levels of nesting, then three metas are needed to insert a parameter from the outermost op, into the innermost op. -.SS Macros ap and ip +.SS Macros ap, ip, ado and ido. .TP Syntax: (ap <form>+) (ip <form>+) + (ado <form>+) + (ido <form>+) .TP Description: @@ -12120,9 +12122,7 @@ list as arguments. In other words, the following equivalence holds: - (ap form ...) <--> (lambda (args) (apply (op form ...))) - -except that the symbol args is to be understood as a generated symbol (gensym). + (ap form ...) <--> (apf (op form ...)) The ap macro nests properly with op and do, in any combination, in regard to the @@n notation. @@ -12131,9 +12131,18 @@ The ip macro is very similar to the ap macro, except that it is based on the semantics of the function iapply rather than apply, according to the following equivalence: - (ap form ...) <--> (lambda (args) (iapply (op form ...))) + (ip form ...) <--> (ipf (op form ...)) + +The ado and ido macros is related to do macro in the same way that ap and ip +are related to op. They produce a one-argument function is produced which works +as if by applying its arguments to the function generated by do, +according ot the following equivalence: + + (ado form ...) <--> (apf (do form ...)) + + (ido form ...) <--> (ipf (do form ...)) -See also: the apf function +See also: the apf and ipf functions. .SS Macro ret |