Xfce Foundation Classes

script.hh File Reference

A Pango Script C++ wrapper interface. More...

#include <xfc/glib/unicode.hh>
#include <xfc/utfstring.hh>
#include <pango/pango-script.h>
#include <xfc/pango/inline/script.inl>

Namespaces

namespace Xfc
namespace Xfc::Pango

Classes

class Xfc::Pango::ScriptIter
A PangoScriptIter C++ wrapper class. More...

Script Methods

Script script_for_unichar (G::Unichar ch)
Looks up the Pango::Script for a particular character (as defined by Unicode Technical report 24).
PangoLanguage * script_get_sample_language (Script script)
Given a script, finds a language tag that is reasonably representative of that script.
bool language_includes_script (PangoLanguage *language, Script script)
Determines if script is one of the scripts used to write language.

Enumerations

enum Script {
  SCRIPT_INVALID_CODE = PANGO_SCRIPT_INVALID_CODE,
  SCRIPT_COMMON = PANGO_SCRIPT_COMMON,
  SCRIPT_INHERITED = PANGO_SCRIPT_INHERITED,
  SCRIPT_ARABIC = PANGO_SCRIPT_ARABIC,
  SCRIPT_ARMENIAN = PANGO_SCRIPT_ARMENIAN,
  SCRIPT_BENGALI = PANGO_SCRIPT_BENGALI,
  SCRIPT_BOPOMOFO = PANGO_SCRIPT_BOPOMOFO,
  SCRIPT_CHEROKEE = PANGO_SCRIPT_CHEROKEE,
  SCRIPT_COPTIC = PANGO_SCRIPT_COPTIC,
  SCRIPT_CYRILLIC = PANGO_SCRIPT_CYRILLIC,
  SCRIPT_DESERET = PANGO_SCRIPT_DESERET,
  SCRIPT_DEVANAGARI = PANGO_SCRIPT_DEVANAGARI,
  SCRIPT_ETHIOPIC = PANGO_SCRIPT_ETHIOPIC,
  SCRIPT_GEORGIAN = PANGO_SCRIPT_GEORGIAN,
  SCRIPT_GOTHIC = PANGO_SCRIPT_GOTHIC,
  SCRIPT_GREEK = PANGO_SCRIPT_GREEK,
  SCRIPT_GUJARATI = PANGO_SCRIPT_GUJARATI,
  SCRIPT_GURMUKHI = PANGO_SCRIPT_GURMUKHI,
  SCRIPT_HAN = PANGO_SCRIPT_HAN,
  SCRIPT_HANGUL = PANGO_SCRIPT_HANGUL,
  SCRIPT_HEBREW = PANGO_SCRIPT_HEBREW,
  SCRIPT_HIRAGANAPANGO_SCRIPT_HIRAGANA,
  SCRIPT_KANNADA = PANGO_SCRIPT_KANNADA,
  SCRIPT_KATAKANA = PANGO_SCRIPT_KATAKANA,
  SCRIPT_KHMER = PANGO_SCRIPT_KHMER,
  SCRIPT_LAO = PANGO_SCRIPT_LAO,
  SCRIPT_LATIN = PANGO_SCRIPT_LATIN,
  SCRIPT_MALAYALAM = PANGO_SCRIPT_MALAYALAM,
  SCRIPT_MONGOLIAN = PANGO_SCRIPT_MONGOLIAN,
  SCRIPT_MYANMAR = PANGO_SCRIPT_MYANMAR,
  SCRIPT_OGHAM = PANGO_SCRIPT_OGHAM,
  SCRIPT_OLD_ITALIC = PANGO_SCRIPT_OLD_ITALIC,
  SCRIPT_ORIYA = PANGO_SCRIPT_ORIYA,
  SCRIPT_RUNIC = PANGO_SCRIPT_RUNIC,
  SCRIPT_SINHALA = PANGO_SCRIPT_SINHALA,
  SCRIPT_SYRIAC = PANGO_SCRIPT_SYRIAC,
  SCRIPT_TAMIL = PANGO_SCRIPT_TAMIL,
  SCRIPT_TELUGU = PANGO_SCRIPT_TELUGU,
  SCRIPT_THAANA = PANGO_SCRIPT_THAANA,
  SCRIPT_THAI = PANGO_SCRIPT_THAI,
  SCRIPT_TIBETAN = PANGO_SCRIPT_TIBETAN,
  SCRIPT_CANADIAN_ABORIGINAL = PANGO_SCRIPT_CANADIAN_ABORIGINAL,
  SCRIPT_YI = PANGO_SCRIPT_YI,
  SCRIPT_TAGALOG = PANGO_SCRIPT_TAGALOG,
  SCRIPT_HANUNOO = PANGO_SCRIPT_HANUNOO,
  SCRIPT_BUHID = PANGO_SCRIPT_BUHID,
  SCRIPT_TAGBANWA = PANGO_SCRIPT_TAGBANWA,
  SCRIPT_BRAILLE = PANGO_SCRIPT_BRAILLE,
  SCRIPT_CYPRIOTPANGO_SCRIPT_CYPRIOT,
  SCRIPT_LIMBUPANGO_SCRIPT_LIMBU,
  SCRIPT_OSMANYA = PANGO_SCRIPT_OSMANYA,
  SCRIPT_SHAVIAN = PANGO_SCRIPT_SHAVIAN,
  SCRIPT_LINEAR_B = PANGO_SCRIPT_LINEAR_B,
  SCRIPT_TAI_LE = PANGO_SCRIPT_TAI_LE,
  SCRIPT_UGARITIC = PANGO_SCRIPT_UGARITIC
}
Identifies different writing systems. More...

Detailed Description

A Pango Script C++ wrapper interface.

Provides PangoScript and PangoScriptIter which are used to identify the writing system, or script of individual characters and of ranges within a larger text string.

Enumeration Type Documentation

enum Script

Identifies different writing systems.
The values correspond to the names defined in the Unicode standard (see Unicode Standard Annex 24: Script names).
Enumeration values:

SCRIPT_INVALID_CODE A value never used for any unicode character.

SCRIPT_COMMON Zyyy; a character used by multiple different scripts.

SCRIPT_INHERITED Qaai; a mark glyph that takes its script from the base glyph to which it is attached.

SCRIPT_ARABIC Arab.

SCRIPT_ARMENIAN Armn.

SCRIPT_BENGALI Beng.

SCRIPT_BOPOMOFO Bopo.

SCRIPT_CHEROKEE Cher.

SCRIPT_COPTIC Qaac.

SCRIPT_CYRILLIC Cyrl (Cyrs).

SCRIPT_DESERET Dsrt.

SCRIPT_DEVANAGARI Deva.

SCRIPT_ETHIOPIC Ethi.

SCRIPT_GEORGIAN Geor (Geon, Geoa).

SCRIPT_GOTHIC Goth.

SCRIPT_GREEK Grek.

SCRIPT_GUJARATI Gujr.

SCRIPT_GURMUKHI Guru.

SCRIPT_HAN Hani.

SCRIPT_HANGUL Hang.

SCRIPT_HEBREW Hebr.

SCRIPT_HIRAGANAPANGO_SCRIPT_HIRAGANA Hira.

SCRIPT_KANNADA Knda.

SCRIPT_KATAKANA Kana.

SCRIPT_KHMER Khmr.

SCRIPT_LAO Laoo.

SCRIPT_LATIN Latn (Latf, Latg).

SCRIPT_MALAYALAM Mlym.

SCRIPT_MONGOLIAN Mong.

SCRIPT_MYANMAR Mymr.

SCRIPT_OGHAM Ogam.

SCRIPT_OLD_ITALIC Ital.

SCRIPT_ORIYA Orya.

SCRIPT_RUNIC Runr.

SCRIPT_SINHALA Sinh.

SCRIPT_SYRIAC Syrc (Syrj, Syrn, Syre).

SCRIPT_TAMIL Taml.

SCRIPT_TELUGU Telu.

SCRIPT_THAANA Thaa.

SCRIPT_THAI Thai.

SCRIPT_TIBETAN Tibt.

SCRIPT_CANADIAN_ABORIGINAL Cans.

SCRIPT_YI Yiii.

SCRIPT_TAGALOG Tglg.

SCRIPT_HANUNOO Hano.

SCRIPT_BUHID Buhd.

SCRIPT_TAGBANWA Tagb.

SCRIPT_BRAILLE Brai.

SCRIPT_CYPRIOTPANGO_SCRIPT_CYPRIOT Cprt.

SCRIPT_LIMBUPANGO_SCRIPT_LIMBU Limb.

SCRIPT_OSMANYA Osma.

SCRIPT_SHAVIAN Shaw.

SCRIPT_LINEAR_B Linb.

SCRIPT_TAI_LE Tale.

SCRIPT_UGARITIC Ugar.

Function Documentation

bool language_includes_script ( PangoLanguage * language,

Script script

)

Determines if script is one of the scripts used to write language.

Parameters:

language A PangoLanguage.

script A Pango::Script

Returns:
true if script is one of the scripts used to write language, or if nothing is known about language.
The returned value is conservative; if nothing is known about the language tag language, true will be returned, since, as far as Pango knows, script might be used to write language.
This routine is used in Pango's itemization process when determining if a supplied language tag is relevant to a particular section of text. It probably is not useful for applications in most circumstances.

Script script_for_unichar ( G::Unichar ch )

Looks up the Pango::Script for a particular character (as defined by Unicode Technical report 24).

Parameters:

ch A unicode character

Returns:
The PangoScript for the character.
No check is made for ch being valid unicode character; if you pass in an invalid character, the result is undefined.

PangoLanguage* script_get_sample_language ( Script script )

Given a script, finds a language tag that is reasonably representative of that script.

Parameters:

script A Pango::Script

Returns:
A PangoLanguage that is representative of the script, or null if no such language exists.
This will usually be the most widely spoken or used language written in that script: for instance, the sample language for Pango::SCRIPT_CYRILLIC is ru (Russian), the sample lanugage for Pango::SCRIPT_ARABIC is ar. For some scripts, no sample language will be returned because there is no language that is sufficiently representative. The best example of this is Pango::SCRIPT_HAN, where various different variants of written Chinese, Japanese, and Korean all use significantly different sets of Han characters and forms of shared characters. No sample language can be provided for many historical scripts as well.

Xfce Foundation Classes

XFC 4.3