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Character Tests and Operations

isblank, toupper, etc.
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Applications and Utilities: Showing

tr(1) - translate characters {oss}

Man pages: FreeBSD RedHat Solaris NetBSD
Source code: OpenBSD FreeBSD
[IEEE Std1003.2-1992 (``POSIX.2'')]

unvis(1) - revert a visual representation of data back to original form {oss}

Man pages: FreeBSD NetBSD
Source code: OpenBSD FreeBSD

Applications and Utilities

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Libraries and Components: Showing

isalpha isupper islower isdigit isxdigit isalnum isspace ispunct isprint isgraph iscntrl isblank isascii toupper tolower toascii (3) - character classification macros {oss}

Source code: OpenBSD FreeBSD
[ANSI C X3.159-1989]

isalnum (3) - alphanumeric character test {oss}

Man pages: FreeBSD RedHat NetBSD
Source code: OpenBSD FreeBSD
[ANSI C X3.159-1989]

isalpha (3) - alphabetic character test {oss}

Man pages: FreeBSD NetBSD
Source code: OpenBSD FreeBSD
[ANSI C X3.159-1989]

isascii (3) - test for ASCII character {oss}

Man pages: FreeBSD NetBSD
Source code: OpenBSD FreeBSD

isblank (3) - blank-space character test {oss}

Man pages: FreeBSD NetBSD
Source code: OpenBSD FreeBSD

iscntrl (3) - control character test {oss}

Man pages: FreeBSD NetBSD
Source code: OpenBSD FreeBSD
[ANSI C X3.159-1989]

isdigit (3) - decimal-digit character test {oss}

Man pages: FreeBSD NetBSD
Source code: OpenBSD FreeBSD
[ANSI C X3.159-1989]

isgraph (3) - printing character test (space character exculsive) {oss}

Man pages: FreeBSD NetBSD
Source code: OpenBSD FreeBSD
[ANSI C X3.159-1989]

islower (3) - lower-case character test {oss}

Man pages: FreeBSD NetBSD
Source code: OpenBSD FreeBSD
[ANSI C X3.159-1989]

isprint (3) - printing character test (space character inclusive) {oss}

Man pages: FreeBSD NetBSD
Source code: OpenBSD FreeBSD
[ANSI C X3.159-1989]

ispunct (3) - punctuation character test {oss}

Man pages: FreeBSD NetBSD
Source code: OpenBSD FreeBSD
[ANSI C X3.159-1989]

isspace (3) - white-space character test {oss}

Man pages: FreeBSD NetBSD
Source code: OpenBSD FreeBSD
[ANSI C X3.159-1989]

isupper (3) - upper-case character test {oss}

Man pages: FreeBSD NetBSD
Source code: OpenBSD FreeBSD
[ANSI C X3.159-1989]

isxdigit (3) - hexadecimal-digit character test {oss}

Man pages: FreeBSD NetBSD
Source code: OpenBSD FreeBSD
[ANSI C X3.159-1989]

tolower _tolower (3) - upper case to lower case letter conversion {oss}

Man pages: FreeBSD Solaris NetBSD
Source code: OpenBSD FreeBSD
[ANSI C X3.159-1989]

toascii (3) - upper case to lower case letter conversion {oss}

Man pages: FreeBSD RedHat Solaris NetBSD
Source code: OpenBSD FreeBSD

toupper _toupper (3) - lower case to upper case letter conversion {oss}

Man pages: FreeBSD RedHat Solaris NetBSD
Source code: OpenBSD FreeBSD
[ANSI C X3.159-1989]

unvis strunvis (3) - decode a visual representation of characters {oss}

Man pages: FreeBSD NetBSD
Source code: OpenBSD FreeBSD

vis strvis strvisx (3) - visually encode characters {oss}

Man pages: FreeBSD NetBSD
Source code: OpenBSD FreeBSD

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Up to Text Strings - Gateway topic to character and string processing routines. NUL Terminated String processing String conversions,et al. ascii to long, long to

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