📄 ctype.tex
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@node Ctype@chapter Character Type Macros and Functions (@file{ctype.h})This chapter groups macros (which are also available as subroutines)to classify characters into several categories (alphabetic,numeric, control characters, whitespace, and so on), or to performsimple character mappings.The header file @file{ctype.h} defines the macros.@menu * isalnum:: Alphanumeric character predicate* isalpha:: Alphabetic character predicate* isascii:: ASCII character predicate* iscntrl:: Control character predicate* isdigit:: Decimal digit predicate* islower:: Lowercase character predicate* isprint:: Printable character predicates (isprint, isgraph)* ispunct:: Punctuation character predicate* isspace:: Whitespace character predicate* isupper:: Uppercase character predicate* isxdigit:: Hexadecimal digit predicate* toascii:: Force integers to ASCII range* tolower:: Translate characters to lowercase* toupper:: Translate characters to uppercase* iswalnum:: Alphanumeric wide character predicate* iswalpha:: Alphabetic wide character predicate* iswblank:: Blank wide character predicate* iswcntrl:: Control wide character predicate* iswdigit:: Decimal digit wide character predicate* iswgraph:: Graphic wide character predicate* iswlower:: Lowercase wide character predicate* iswprint:: Printable wide character predicate* iswpunct:: Punctuation wide character predicate* iswspace:: Whitespace wide character predicate* iswupper:: Uppercase wide character predicate* iswxdigit:: Hexadecimal digit wide character predicate* iswctype:: Extensible wide-character test* wctype:: Compute wide-character test type* towlower:: Translate wide characters to lowercase* towupper:: Translate wide characters to uppercase* towctrans:: Extensible wide-character translation* wctrans:: Compute wide-character translation type@end menu@page@include ctype/isalnum.def@page@include ctype/isalpha.def@page@include ctype/isascii.def@page@include ctype/iscntrl.def@page@include ctype/isdigit.def@page@include ctype/islower.def@page@include ctype/isprint.def@page@include ctype/ispunct.def@page@include ctype/isspace.def@page@include ctype/isupper.def@page@include ctype/isxdigit.def@page@include ctype/toascii.def@page@include ctype/tolower.def@page@include ctype/toupper.def@page@include ctype/iswalnum.def@page@include ctype/iswalpha.def@page@include ctype/iswcntrl.def@page@include ctype/iswblank.def@page@include ctype/iswdigit.def@page@include ctype/iswgraph.def@page@include ctype/iswlower.def@page@include ctype/iswprint.def@page@include ctype/iswpunct.def@page@include ctype/iswspace.def@page@include ctype/iswupper.def@page@include ctype/iswxdigit.def@page@include ctype/iswctype.def@page@include ctype/wctype.def@page@include ctype/towlower.def@page@include ctype/towupper.def@page@include ctype/towctrans.def@page@include ctype/wctrans.def
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