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| -rw-r--r-- | txr.1 | 20 |
1 files changed, 20 insertions, 0 deletions
@@ -58027,6 +58027,14 @@ and macros use their macro environment in determining whether a form is a macro call, thereby respecting lexical scoping. +Note: an +.code opip +form with no arguments specifies a function which returns +.codn nil , +which follows from a documented property of the +.code chain +function. + .TP* Example: Take each element from the list .code "(1 2 3 4)" @@ -58093,6 +58101,18 @@ is equivalent to the application of an function to the value of .metn form . +Note: if there are no +.meta opip-arg +arguments, then +.code flow +evaluates the +.code x +argument and returns +.codn nil ; +which follows from the behavior of +.code opip +when that operator is invoked with no arguments. + .TP* Examples: .verb |