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International Characters Support: Difference between revisions
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International Characters Support (view source)
Revision as of 07:44, 12 January 2019
, 12 January 2019Correct wchar_t description
AndrewJanke (talk | contribs) m (typo fix) |
AndrewJanke (talk | contribs) (Correct wchar_t description) |
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What is important here is that usual characters should be declared as "chars" or "signed chars". "Unsigned char" means they MAY be submitted to truncation of the eighth bit, this is implementation-dependant. | What is important here is that usual characters should be declared as "chars" or "signed chars". "Unsigned char" means they MAY be submitted to truncation of the eighth bit, this is implementation-dependant. | ||
In order to support wide | In order to support "wide" characters with an extended range of values, the storage type wchar_t was added to the C standard. The size of wchar_t is system dependent: on Windows, it is 2 bytes, and on Linux and macOS it is 4 bytes. Functions whose argument is wchar instead of char are generally prefixed by "w". | ||
=Character functions= | =Character functions= | ||
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== Development == | == Development == | ||
* short term: tests to ensure every string processing is 8-bit clean | * short term: tests to ensure every string processing is 8-bit clean | ||
* middle and long term: there are a number of options to fully support whatever | * middle and long term: there are a number of options to fully support whatever symbols exist in Unicode: | ||
** make use of C wchar_t | ** make use of C wchar_t, char16_t, or char32_t types | ||
** make use of ICU [http://site.icu-project.org/], an open-source lib with various Unicode support functions | ** make use of ICU [http://site.icu-project.org/], an open-source lib with various Unicode support functions | ||
[[Category:Development]] | [[Category:Development]] | ||