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db4
Slava Pestov 2008-05-14 01:14:52 -05:00
parent a444db0c1f
commit 509cf872a8
1 changed files with 10 additions and 6 deletions
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16
core/kernel/kernel-docs.factor
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@ -718,17 +718,21 @@ $nl
HELP: unless*
{ $values { "cond" "a generalized boolean" } { "false" "a quotation " } }
{ $description "Variant of " { $link if* } " with no true quotation."
$nl
{ $description "Variant of " { $link if* } " with no true quotation." }
{ $notes
"The following two lines are equivalent:"
{ $code "X [ Y ] unless*" "X dup [ ] [ drop Y ] if" } } ;
{ $code "X [ Y ] unless*" "X dup [ ] [ drop Y ] if" }
"The following two lines are equivalent, where " { $snippet "L" } " is a literal:"
{ $code "[ L ] unless*" "L or" } } ;
HELP: ?if
{ $values { "default" object } { "cond" "a generalized boolean" } { "true" "a quotation with stack effect " { $snippet "( cond -- )" } } { "false" "a quotation with stack effect " { $snippet "( default -- )" } } }
{ $description "If the condition is " { $link f } ", the " { $snippet "false" } " quotation is called with the " { $snippet "default" } " value on the stack. Otherwise, the " { $snippet "true" } " quotation is called with the condition on the stack."
$nl
{ $description "If the condition is " { $link f } ", the " { $snippet "false" } " quotation is called with the " { $snippet "default" } " value on the stack. Otherwise, the " { $snippet "true" } " quotation is called with the condition on the stack." }
{ $notes
"The following two lines are equivalent:"
{ $code "[ X ] [ Y ] ?if" "dup [ nip X ] [ drop Y ] if" } } ;
{ $code "[ X ] [ Y ] ?if" "dup [ nip X ] [ drop Y ] if" }
"The following two lines are equivalent:"
{ $code "[ ] [ ] ?if" "swap or" } } ;
HELP: die
{ $description "Starts the front-end processor (FEP), which is a low-level debugger which can inspect memory addresses and the like. The FEP is also entered when a critical error occurs." }