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→Review of standard forms and procedures: ahmedalnuaimi260@gmail.com Tags: Reverted Mobile edit Mobile web edit |
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This table describes the standard forms in Scheme. Some forms appear in more than one row because they cannot easily be classified into a single function in the language.
Forms marked "L" in this table are classed as derived "library" forms in the standard and are often implemented as macros using more fundamental forms in practice, making the task of implementation much easier than in other languages.
{| class="wikitable"
|+ Standard forms in the language R5RS Scheme
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| Strings || {{mono|1=string?, make-string, string, string-length, string-ref, string-set!, string=?, string-ci=?, string<? string-ci<?, string<=? string-ci<=?, string>? string-ci>?, string>=? string-ci>=?, substring, string-append, string->list, list->string, string-copy, string-fill!}}
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| Characters || {{mono|1=char?, char=?, char-ci=?, char<? char-ci<?, char<=? char-ci<=?, char>? char-ci>?, char>=? char-ci>=?, char-alphabetic?, char-numeric?, char-whitespace?, char-upper-case?, char-lower-case?, char->integer, integer->char, char-upcase, char-downcase}}
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| Vectors || {{mono|make-vector, vector, vector?, vector-length, vector-ref, vector-set!, vector->list, list->vector, vector-fill!}}
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| Symbols || {{mono|symbol->string, string->symbol, symbol?}}
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| Pairs and lists || {{mono|pair?, cons, car, cdr, set-car!, set-cdr!, null?, list?, list, length, append, reverse, list-tail, list-ref, memq. memv. member, assq, assv, assoc, list->vector, vector->list, list->string, string->list}}
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| Identity predicates || {{mono|boolean?, pair?, symbol?, number?, char?, string?, vector?, port?, procedure?}}
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| Continuations || {{mono|call-with-current-continuation (call/cc), values, call-with-values, dynamic-wind}}
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