Functions for identifying and converting unicode characters and representation forms.
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#include <string>
Go to the source code of this file.
Functions for identifying and converting unicode characters and representation forms.
◆ CountIndent()
| std::size_t CountIndent |
( |
std::u32string_view |
s, |
|
|
std::size_t |
begin = 0 |
|
) |
| |
Calculates and returns the number of spaces in the beginning of the given string.
- Parameters
-
| s | The string to be searched. |
| begin | An optional beginning index from which to count the spaces. |
◆ FromCP437()
| std::u32string FromCP437 |
( |
std::string_view |
s | ) |
|
Converts given text, assumed to be CP437 encoded, into a sequence of unicode codepoints
◆ FromUTF8()
| std::u32string FromUTF8 |
( |
std::string_view |
s | ) |
|
Converts given text, assumed to be UTF-8 encoded, into a sequence of unicode codepoints
This function is optimized for performance. A simple (but incomplete) implementation is shown in if-0. Surrogate pairs are detected and parsed properly, if they appear within a single string.
◆ isalnum()
| bool isalnum |
( |
char32_t |
c | ) |
|
- Returns
- true if given code index represents an alphabet or a numeric digit
◆ isalnum_()
| bool isalnum_ |
( |
char32_t |
c | ) |
|
- Returns
- true if given code index represents an alphabet or a numeric digit or the underscore
◆ isalpha()
| bool isalpha |
( |
char32_t |
c | ) |
|
- Returns
- true if given code index represents an alphabet
◆ isblank()
| bool isblank |
( |
char32_t |
c | ) |
|
- Returns
- true if given code index represents whitespace
◆ isctrl()
| bool isctrl |
( |
char32_t |
c | ) |
|
- Returns
- true if given code index represents a control character
◆ isdigit()
| bool isdigit |
( |
char32_t |
c | ) |
|
- Returns
- true if given code index represents a numeric digit
◆ isdouble()
| bool isdouble |
( |
char32_t |
c | ) |
|
- Returns
- true if given code index is double-wide
◆ isgraph()
| bool isgraph |
( |
char32_t |
c | ) |
|
- Returns
- true if given code index is graphics symbol
◆ islower()
| bool islower |
( |
char32_t |
c | ) |
|
- Returns
- true if given code index is lowercase
◆ isnotword()
| bool isnotword |
( |
char32_t |
c | ) |
|
- Returns
- true if given code index is graphics symbol
◆ isprint()
| bool isprint |
( |
char32_t |
c | ) |
|
- Returns
- true if given code index is printable
◆ ispunct()
| bool ispunct |
( |
char32_t |
c | ) |
|
- Returns
- true if given code index represents punctuation
◆ isspace()
| bool isspace |
( |
char32_t |
c | ) |
|
- Returns
- true if given code index represents whitespace
◆ isspace_punct()
| bool isspace_punct |
( |
char32_t |
c | ) |
|
- Returns
- true if given code index represents whitespace or punctuation
◆ isupper()
| bool isupper |
( |
char32_t |
c | ) |
|
- Returns
- true if given code index is uppercase
◆ isxdigit()
| bool isxdigit |
( |
char32_t |
c | ) |
|
- Returns
- true if given code index represents a hexadecimal digit
◆ tolower()
| char32_t tolower |
( |
char32_t |
c | ) |
|
Converts the given code index to its corresponding lowercase version
◆ totitle()
| char32_t totitle |
( |
char32_t |
c | ) |
|
Converts the given code index to its corresponding titlecase version
◆ toupper()
| char32_t toupper |
( |
char32_t |
c | ) |
|
Converts the given code index to its corresponding uppercase version
◆ ToUTF8() [1/2]
| std::string ToUTF8 |
( |
std::u16string_view |
s | ) |
|
Converts given sequence of unicode code points into UTF-8 encoded string
◆ ToUTF8() [2/2]
| std::string ToUTF8 |
( |
std::u32string_view |
s | ) |
|
Converts given sequence of unicode code points into UTF-8 encoded string
This function is optimized for performance.
