_ismbc Routines
Each _ismbc routine tests a given multibyte character c for a particular condition.
_ismbcalnum, _ismbcalnum_l, _ismbcalpha, _ismbcalpha_l, _ismbcdigit, _ismbcdigit_l |
_ismbcl0, _ismbcl0_l, _ismbcl1, _ismbcl1_l, _ismbcl2, _ismbcl2_l |
Remarks
The test result of each _ismbc routine depends on the multibyte code page in effect. Multibyte code pages have single-byte alphabetic characters. By default, the multibyte code page is set to the system-default ANSI code page obtained from the operating system at program startup. You can query or change the multibyte code page in use with _getmbcp or _setmbcp, respectively.
The output value is affected by the LC_CTYPE category setting of the locale; see setlocale for more information. The versions of these functions without the _l suffix use the current locale for this locale-dependent behavior; the versions with the _l suffix are identical except that they use the locale parameter passed in instead.
Routine |
Test condition |
Code page 932 example |
|---|---|---|
Alphanumeric |
Returns nonzero if and only if c is a single-byte representation of an ASCII English letter: See examples for _ismbcdigit and _ismbcalpha. |
|
Alphabetic |
Returns nonzero if and only if c is a single-byte representation of an ASCII English letter: See examples for _ismbcupper and _ismbclower; or a katakana letter: 0xA6<=c<=0xDF. |
|
Digit |
Returns nonzero if and only if c is a single-byte representation of an ASCII digit: 0x30<=c<=0x39. |
|
Graphic |
Returns nonzero if and only if c is a single-byte representation of any ASCII or katakana printable character except a white space ( ). See examples for _ismbcdigit, _ismbcalpha, and _ismbcpunct. |
|
Valid multibyte character |
Returns nonzero if and only if the first byte of c is within ranges 0x81 – 0x9F or 0xE0 – 0xFC, while the second byte is within ranges 0x40 – 0x7E or 0x80 - FC. |
|
Lowercase alphabetic |
Returns nonzero if and only if c is a single-byte representation of an ASCII lowercase English letter: 0x61<=c<=0x7A. |
|
Printable |
Returns nonzero if and only if c is a single-byte representation of any ASCII or katakana printable character including a white space ( ): See examples for _ismbcspace, _ismbcdigit, _ismbcalpha, and _ismbcpunct. |
|
Punctuation |
Returns nonzero if and only if c is a single-byte representation of any ASCII or katakana punctuation character. |
|
Space or horizontal tab |
Returns nonzero if and only if c is a single-byte representation of a space character or a horizontal tab character: c=0x20 or c=0x09. |
|
Whitespace |
Returns nonzero if and only if c is a white space character: c=0x20 or 0x09<=c<=0x0D. |
|
Multibyte symbol |
Returns nonzero if and only if 0x8141<=c<=0x81AC. |
|
Uppercase alphabetic |
Returns nonzero if and only if c is a single-byte representation of an ASCII uppercase English letter: 0x41<=c<=0x5A. |
Code Page 932 Specific
The following routines are specific to code page 932.
Routine |
Test condition (code page 932 only) |
|---|---|
Double-byte Hiragana: 0x829F<=c<=0x82F1. |
|
Double-byte katakana: 0x8340<=c<=0x8396. |
|
JIS non-Kanji: 0x8140<=c<=0x889E. |
|
JIS level-1: 0x889F<=c<=0x9872. |
|
JIS level-2: 0x989F<=c<=0xEA9E. |
_ismbcl0, _ismbcl1, and _ismbcl2 check that the specified value c matches the test conditions described in the preceding table, but do not check that c is a valid multibyte character. If the lower byte is in the ranges 0x00 – 0x3F, 0x7F, or 0xFD – 0xFF, these functions return a nonzero value, indicating that the character satisfies the test condition. Use _ismbbtrail, _ismbbtrail_l to test whether the multibyte character is defined.
END Code Page 932 Specific