dnpgettext

dnpgettext is a function in the GNU gettext library used to retrieve localized translations for a message when both a specific translation domain and a context are required, with support for plural forms. It enables disambiguation of identical strings by providing a context and allows selecting translations from a designated catalog (domain). The function uses the current locale settings to locate the appropriate plural form.

Prototype and parameters: const char *dnpgettext(const char *domainname, const char *msgctxt, const char *msgid1, const char *msgid2, unsigned long int n); domainname specifies the message catalog to use, msgctxt provides a contextual qualifier, msgid1 is the singular form, msgid2 is the plural form, and n determines whether the singular or plural form should be used.

Behavior and return value: The function returns a pointer to the translated string if a matching entry is found in the specified domain and context. If no translation is available, it falls back to returning msgid1 when n equals 1 (singular) or msgid2 when n is different from 1 (plural). This behavior allows unchanged source strings to be displayed when translations are missing.

Usage notes: dnpgettext is used in C programs that link with libintl and employ locale-aware localization. Typical usage involves setting the locale, binding the text domain, and then calling dnpgettext with the appropriate domain, context, and plural forms. It is part of a family of related functions (such as dgettext, dpgettext, npgettext, and dngettext) that provide domain, context, and plural capabilities for internationalization. See also: dgettext, dpgettext, npgettext, dngettext.