HELP: set-length
{ $values { "n" "a non-negative integer" } { "seq" "a resizable sequence" } }
{ $contract "Resizes a sequence. The initial contents of the new area is undefined." }
-{ $errors "Throws a " { $link no-method } " error if the sequence is not resizable, and a " { $link bounds-error } " if the new length is negative." }
+{ $errors "Throws a " { $link no-method } " error if the sequence is not resizable, and a " { $link bounds-error } " if the new length is negative." }
{ $side-effects "seq" } ;
HELP: lengthen
{ "indices" sequence } { "seq" sequence }
{ "seq'" sequence } }
{ $description "Outputs a sequence of elements from the input sequence indexed by the indices." }
-{ $examples
+{ $examples
{ $example "USING: prettyprint sequences ;"
"{ 0 2 } { \"a\" \"b\" \"c\" } nths ."
"{ \"a\" \"c\" }"
{ $warning "This word is in the " { $vocab-link "sequences.private" } " vocabulary because it is unsafe. It does not check types or array bounds, and improper use can corrupt memory. User code must use " { $link nth } " instead." } ;
HELP: set-array-nth
-{ $values { "elt" object } { "n" "a non-negative fixnum" } { "array" "an array" } }
+{ $values { "elt" object } { "n" "a non-negative fixnum" } { "array" "an array" } }
{ $description "Low-level array element mutator." }
{ $warning "This word is in the " { $vocab-link "sequences.private" } " vocabulary because it is unsafe. It does not check types or array bounds, and improper use can corrupt memory. User code must use " { $link set-nth } " instead." } ;
HELP: push-if
{ $values { "elt" object } { "quot" { $quotation "( ..a elt -- ..b ? )" } } { "accum" "a resizable mutable sequence" } }
-{ $description "Adds the element at the end of the sequence if the quotation yields a true value." }
+{ $description "Adds the element at the end of the sequence if the quotation yields a true value." }
{ $notes "This word is a factor of " { $link filter } "." } ;
HELP: filter
HELP: prefix
{ $values { "seq" sequence } { "elt" object } { "newseq" sequence } }
{ $description "Outputs a new sequence obtained by adding " { $snippet "elt" } " at the beginning of " { $snippet "seq" } "." }
-{ $errors "Throws an error if the type of " { $snippet "elt" } " is not permitted in sequences of the same class as " { $snippet "seq1" } "." }
+{ $errors "Throws an error if the type of " { $snippet "elt" } " is not permitted in sequences of the same class as " { $snippet "seq1" } "." }
{ $examples
{ $example "USING: prettyprint sequences ;" "{ 1 2 3 } 0 prefix ." "{ 0 1 2 3 }" }
} ;
{ $values { "seq1" sequence } { "seq2" sequence } { "newseq" sequence } }
{ $description "Outputs a new sequence of the same type as " { $snippet "seq1" } " consisting of the elements of " { $snippet "seq1" } " followed by " { $snippet "seq2" } "." }
{ $errors "Throws an error if " { $snippet "seq2" } " contains elements not permitted in sequences of the same class as " { $snippet "seq1" } "." }
-{ $examples
+{ $examples
{ $example "USING: prettyprint sequences ;"
"{ 1 2 } B{ 3 4 } append ."
"{ 1 2 3 4 }"
{ $values { "seq1" sequence } { "seq2" sequence } { "exemplar" sequence } { "newseq" sequence } }
{ $description "Outputs a new sequence of the same type as " { $snippet "exemplar" } " consisting of the elements of " { $snippet "seq1" } " followed by " { $snippet "seq2" } "." }
{ $errors "Throws an error if " { $snippet "seq1" } " or " { $snippet "seq2" } " contain elements not permitted in sequences of the same class as " { $snippet "exemplar" } "." }
-{ $examples
+{ $examples
{ $example "USING: prettyprint sequences ;"
"{ 1 2 } B{ 3 4 } B{ } append-as ."
"B{ 1 2 3 4 }"
{ $values
{ "quot" { $quotation "( ... elt -- ... ? )" } }
{ "selector" { $quotation "( ... elt -- ... )" } } { "accum" vector } }
-{ $description "Creates a new vector to accumulate the values which return true for a predicate. Returns a new quotation which accepts an object to be tested and stored in the collector if the test yields true. The collector is left on the stack for convenience." }
+{ $description "Creates a new vector to accumulate the values which return true for a predicate. Returns a new quotation which accepts an object to be tested and stored in the collector if the test yields true. The collector is left on the stack for convenience." }
{ $example "! Find all the even numbers:" "USING: prettyprint sequences math kernel ;"
"10 iota [ even? ] selector [ each ] dip ."
"V{ 0 2 4 6 8 }"
{ "seq" sequence } { "quot" quotation }
{ "newseq" sequence } }
{ $description "Removes elements starting from the left side of a sequence if they match a predicate. Once an element does not match, the test stops and the rest of the sequence is left on the stack as a new sequence." }
-{ $example "" "USING: prettyprint math sequences ;"
+{ $example "USING: prettyprint math sequences ;"
"{ 0 0 1 2 3 0 0 } [ zero? ] trim-head ."
"{ 1 2 3 0 0 }"
} ;
{ "seq" sequence } { "quot" quotation }
{ "slice" slice } }
{ $description "Removes elements starting from the left side of a sequence if they match a predicate. Once an element does not match, the test stops and the rest of the sequence is left on the stack as a slice" }
-{ $example "" "USING: prettyprint math sequences ;"
+{ $example "USING: prettyprint math sequences ;"
"{ 0 0 1 2 3 0 0 } [ zero? ] trim-head-slice ."
"T{ slice { from 2 } { to 7 } { seq { 0 0 1 2 3 0 0 } } }"
} ;
{ "seq" sequence } { "quot" quotation }
{ "newseq" sequence } }
{ $description "Removes elements starting from the right side of a sequence if they match a predicate. Once an element does not match, the test stops and the rest of the sequence is left on the stack as a new sequence." }
-{ $example "" "USING: prettyprint math sequences ;"
+{ $example "USING: prettyprint math sequences ;"
"{ 0 0 1 2 3 0 0 } [ zero? ] trim-tail ."
"{ 0 0 1 2 3 }"
} ;
{ "seq" sequence } { "quot" quotation }
{ "slice" slice } }
{ $description "Removes elements starting from the right side of a sequence if they match a predicate. Once an element does not match, the test stops and the rest of the sequence is left on the stack as a slice." }
-{ $example "" "USING: prettyprint math sequences ;"
+{ $example "USING: prettyprint math sequences ;"
"{ 0 0 1 2 3 0 0 } [ zero? ] trim-tail-slice ."
"T{ slice { from 0 } { to 5 } { seq { 0 0 1 2 3 0 0 } } }"
} ;
{ "seq" sequence } { "quot" quotation }
{ "newseq" sequence } }
{ $description "Removes elements starting from the left and right sides of a sequence if they match a predicate. Once an element does not match, the test stops and the rest of the sequence is left on the stack as a new sequence." }
-{ $example "" "USING: prettyprint math sequences ;"
+{ $example "USING: prettyprint math sequences ;"
"{ 0 0 1 2 3 0 0 } [ zero? ] trim ."
"{ 1 2 3 }"
} ;
{ "seq" sequence } { "quot" quotation }
{ "slice" slice } }
{ $description "Removes elements starting from the left and right sides of a sequence if they match a predicate. Once an element does not match, the test stops and the rest of the sequence is left on the stack as a slice." }
-{ $example "" "USING: prettyprint math sequences ;"
+{ $example "USING: prettyprint math sequences ;"
"{ 0 0 1 2 3 0 0 } [ zero? ] trim-slice ."
"T{ slice { from 2 } { to 5 } { seq { 0 0 1 2 3 0 0 } } }"
} ;
{ $values
{ "seq" sequence }
{ "newseq" sequence } }
- { $description "Outputs a new sequence with all instance of " { $link f } " removed." }
- { $examples
+ { $description "Outputs a new sequence with all instance of " { $link f } " removed." }
+ { $examples
{ $example "USING: prettyprint sequences ;"
"{ \"a\" 3 { } f } sift ."
"{ \"a\" 3 { } }"
{ "seq" sequence }
{ "newseq" sequence } }
{ $description "Outputs a new sequence with all empty sequences removed." }
-{ $examples
+{ $examples
{ $example "USING: prettyprint sequences ;"
"{ { } { 2 3 } { 5 } { } } harvest ."
"{ { 2 3 } { 5 } }"
{ $values
{ "first" object } { "seq" sequence } }
{ $description "Sets the first element of a sequence." }
-{ $examples
+{ $examples
{ $example "USING: prettyprint kernel sequences ;"
- "{ 1 2 3 4 } 5 over set-first ."
+ "{ 1 2 3 4 } 5 over set-first ."
"{ 5 2 3 4 }"
}
} ;
{ $values
{ "second" object } { "seq" sequence } }
{ $description "Sets the second element of a sequence." }
-{ $examples
+{ $examples
{ $example "USING: prettyprint kernel sequences ;"
- "{ 1 2 3 4 } 5 over set-second ."
+ "{ 1 2 3 4 } 5 over set-second ."
"{ 1 5 3 4 }"
}
} ;
{ $values
{ "third" object } { "seq" sequence } }
{ $description "Sets the third element of a sequence." }
-{ $examples
+{ $examples
{ $example "USING: prettyprint kernel sequences ;"
- "{ 1 2 3 4 } 5 over set-third ."
+ "{ 1 2 3 4 } 5 over set-third ."
"{ 1 2 5 4 }"
}
} ;
{ $values
{ "fourth" object } { "seq" sequence } }
{ $description "Sets the fourth element of a sequence." }
-{ $examples
+{ $examples
{ $example "USING: prettyprint kernel sequences ;"
- "{ 1 2 3 4 } 5 over set-fourth ."
+ "{ 1 2 3 4 } 5 over set-fourth ."
"{ 1 2 3 5 }"
}
} ;
{ "len" integer } { "quot" { $quotation "( ... -- ... newelt )" } }
{ "newseq" sequence } }
{ $description "Calls the quotation " { $snippet "len" } " times, collecting results into a new array." }
-{ $examples
+{ $examples
{ $unchecked-example "USING: kernel prettyprint random sequences ;"
"5 [ 100 random ] replicate ."
"{ 52 10 45 81 30 }"
{ "len" integer } { "quot" { $quotation "( ... -- ... newelt )" } } { "exemplar" sequence }
{ "newseq" sequence } }
{ $description "Calls the quotation " { $snippet "len" } " times, collecting results into a new sequence of the same type as the exemplar sequence." }
-{ $examples
+{ $examples
{ $unchecked-example "USING: prettyprint kernel sequences ;"
"5 [ 100 random ] B{ } replicate-as ."
"B{ 44 8 2 33 18 }"
{ $values
{ "seq" sequence } { "quot" quotation }
{ "trueseq" sequence } { "falseseq" sequence } }
- { $description "Calls a predicate quotation on each element of the input sequence. If the test yields true, the element is added to " { $snippet "trueseq" } "; if false, it's added to " { $snippet "falseseq" } "." }
-{ $examples
+ { $description "Calls a predicate quotation on each element of the input sequence. If the test yields true, the element is added to " { $snippet "trueseq" } "; if false, it's added to " { $snippet "falseseq" } "." }
+{ $examples
{ $example "USING: prettyprint kernel math sequences ;"
"{ 1 2 3 4 5 } [ even? ] partition [ . ] bi@"
"{ 2 4 }\n{ 1 3 5 }"
ARTICLE: "syntax-tuples" "Tuple syntax"
{ $subsections POSTPONE: T{ }
-"Tuples are documented in " { $link "tuples" } "." ;
+"Tuples are documented in " { $link "tuples" } "." ;
ARTICLE: "syntax-quots" "Quotation syntax"
{ $subsections
HELP: {
{ $syntax "{ elements... }" }
{ $values { "elements" "a list of objects" } }
-{ $description "Marks the beginning of a literal array. Literal arrays are terminated by " { $link POSTPONE: } } "." }
+{ $description "Marks the beginning of a literal array. Literal arrays are terminated by " { $link POSTPONE: } } "." }
{ $examples { $code "{ 1 2 3 }" } } ;
HELP: V{
{ $syntax "V{ elements... }" }
{ $values { "elements" "a list of objects" } }
-{ $description "Marks the beginning of a literal vector. Literal vectors are terminated by " { $link POSTPONE: } } "." }
+{ $description "Marks the beginning of a literal vector. Literal vectors are terminated by " { $link POSTPONE: } } "." }
{ $examples { $code "V{ 1 2 3 }" } } ;
HELP: B{
{ $syntax "B{ elements... }" }
{ $values { "elements" "a list of integers" } }
-{ $description "Marks the beginning of a literal byte array. Literal byte arrays are terminated by " { $link POSTPONE: } } "." }
+{ $description "Marks the beginning of a literal byte array. Literal byte arrays are terminated by " { $link POSTPONE: } } "." }
{ $examples { $code "B{ 1 2 3 }" } } ;
HELP: H{
{ $syntax "H{ { key value }... }" }
{ $values { "key" "an object" } { "value" "an object" } }
-{ $description "Marks the beginning of a literal hashtable, given as a list of two-element arrays holding key/value pairs. Literal hashtables are terminated by " { $link POSTPONE: } } "." }
+{ $description "Marks the beginning of a literal hashtable, given as a list of two-element arrays holding key/value pairs. Literal hashtables are terminated by " { $link POSTPONE: } } "." }
{ $examples { $code "H{ { \"tuna\" \"fish\" } { \"jalapeno\" \"vegetable\" } }" } } ;
HELP: HS{
{ $syntax "HS{ members ... }" }
{ $values { "members" "a list of objects" } }
-{ $description "Marks the beginning of a literal hash set, given as a list of its members. Literal hashtables are terminated by " { $link POSTPONE: } } "." }
+{ $description "Marks the beginning of a literal hash set, given as a list of its members. Literal hashtables are terminated by " { $link POSTPONE: } } "." }
{ $examples { $code "HS{ 3 \"foo\" }" } } ;
HELP: C{
{ $syntax "C{ real-part imaginary-part }" }
{ $values { "real-part" "a real number" } { "imaginary-part" "a real number" } }
-{ $description "Parses a complex number given in rectangular form as a pair of real numbers. Literal complex numbers are terminated by " { $link POSTPONE: } } "." } ;
+{ $description "Parses a complex number given in rectangular form as a pair of real numbers. Literal complex numbers are terminated by " { $link POSTPONE: } } "." } ;
HELP: T{
{ $syntax "T{ class }" "T{ class f slot-values... }" "T{ class { slot-name slot-value } ... }" }
{ $examples
{ $example "USING: classes.singleton kernel io ;" "IN: singleton-demo" "USE: prettyprint SINGLETON: foo\nGENERIC: bar ( obj -- )\nM: foo bar drop \"a foo!\" print ;\nfoo bar" "a foo!" }
} ;
-
+
HELP: SINGLETONS:
{ $syntax "SINGLETONS: words... ;" }
{ $values { "words" "a sequence of new words to define" } }
HELP: EXCLUDE:
{ $syntax "EXCLUDE: vocab => words ... ;" }
-{ $description "Adds all words except for " { $snippet "words" } " from " { $snippet "vocab" } " to the search path." }
+{ $description "Adds all words except for " { $snippet "words" } " from " { $snippet "vocab" } " to the search path." }
{ $examples { $code
"EXCLUDE: math.parser => bin> hex> ;" "! imports everything but bin> and hex>" } } ;
"TUPLE: air-transport ;"
"HOOK: deliver transport ( destination -- )"
"M: land-transport deliver \"Land delivery to \" write print ;"
- "M: air-transport deliver \"Air delivery to \" write print ;"
+ "M: air-transport deliver \"Air delivery to \" write print ;"
"T{ air-transport } transport set"
"\"New York City\" deliver"
"Air delivery to New York City"
projects / factor.git / commitdiff