PangoScriptIter

typedef struct _PangoScriptIter PangoScriptIter;

A PangoScriptIter is used to iterate through a string and identify ranges in different scripts.

enum PangoScript

typedef enum {                         /* ISO 15924 code */
      PANGO_SCRIPT_INVALID_CODE = -1,
      PANGO_SCRIPT_COMMON       = 0,   /* Zyyy */
      PANGO_SCRIPT_INHERITED,          /* Qaai */
      PANGO_SCRIPT_ARABIC,             /* Arab */
      PANGO_SCRIPT_ARMENIAN,           /* Armn */
      PANGO_SCRIPT_BENGALI,            /* Beng */
      PANGO_SCRIPT_BOPOMOFO,           /* Bopo */
      PANGO_SCRIPT_CHEROKEE,           /* Cher */
      PANGO_SCRIPT_COPTIC,             /* Qaac */
      PANGO_SCRIPT_CYRILLIC,           /* Cyrl (Cyrs) */
      PANGO_SCRIPT_DESERET,            /* Dsrt */
      PANGO_SCRIPT_DEVANAGARI,         /* Deva */
      PANGO_SCRIPT_ETHIOPIC,           /* Ethi */
      PANGO_SCRIPT_GEORGIAN,           /* Geor (Geon, Geoa) */
      PANGO_SCRIPT_GOTHIC,             /* Goth */
      PANGO_SCRIPT_GREEK,              /* Grek */
      PANGO_SCRIPT_GUJARATI,           /* Gujr */
      PANGO_SCRIPT_GURMUKHI,           /* Guru */
      PANGO_SCRIPT_HAN,                /* Hani */
      PANGO_SCRIPT_HANGUL,             /* Hang */
      PANGO_SCRIPT_HEBREW,             /* Hebr */
      PANGO_SCRIPT_HIRAGANA,           /* Hira */
      PANGO_SCRIPT_KANNADA,            /* Knda */
      PANGO_SCRIPT_KATAKANA,           /* Kana */
      PANGO_SCRIPT_KHMER,              /* Khmr */
      PANGO_SCRIPT_LAO,                /* Laoo */
      PANGO_SCRIPT_LATIN,              /* Latn (Latf, Latg) */
      PANGO_SCRIPT_MALAYALAM,          /* Mlym */
      PANGO_SCRIPT_MONGOLIAN,          /* Mong */
      PANGO_SCRIPT_MYANMAR,            /* Mymr */
      PANGO_SCRIPT_OGHAM,              /* Ogam */
      PANGO_SCRIPT_OLD_ITALIC,         /* Ital */
      PANGO_SCRIPT_ORIYA,              /* Orya */
      PANGO_SCRIPT_RUNIC,              /* Runr */
      PANGO_SCRIPT_SINHALA,            /* Sinh */
      PANGO_SCRIPT_SYRIAC,             /* Syrc (Syrj, Syrn, Syre) */
      PANGO_SCRIPT_TAMIL,              /* Taml */
      PANGO_SCRIPT_TELUGU,             /* Telu */
      PANGO_SCRIPT_THAANA,             /* Thaa */
      PANGO_SCRIPT_THAI,               /* Thai */
      PANGO_SCRIPT_TIBETAN,            /* Tibt */
      PANGO_SCRIPT_CANADIAN_ABORIGINAL, /* Cans */
      PANGO_SCRIPT_YI,                 /* Yiii */
      PANGO_SCRIPT_TAGALOG,            /* Tglg */
      PANGO_SCRIPT_HANUNOO,            /* Hano */
      PANGO_SCRIPT_BUHID,              /* Buhd */
      PANGO_SCRIPT_TAGBANWA,           /* Tagb */

      /* Unicode-4.0 additions */
      PANGO_SCRIPT_BRAILLE,            /* Brai */
      PANGO_SCRIPT_CYPRIOT,            /* Cprt */
      PANGO_SCRIPT_LIMBU,              /* Limb */
      PANGO_SCRIPT_OSMANYA,            /* Osma */
      PANGO_SCRIPT_SHAVIAN,            /* Shaw */
      PANGO_SCRIPT_LINEAR_B,           /* Linb */
      PANGO_SCRIPT_TAI_LE,             /* Tale */
      PANGO_SCRIPT_UGARITIC            /* Ugar */
} PangoScript;

The PangoScript enumeration identifies different writing systems. The values correspond to the names defined in the Unicode standard. (See Unicode Standard Annex 24: Script names).

PANGO_TYPE_SCRIPT

#define PANGO_TYPE_SCRIPT (pango_script_get_type())

The GObject type for PangoScript

pango_script_for_unichar ()

PangoScript pango_script_for_unichar        (gunichar ch);

Looks up the PangoScript for a particular character (as defined by Unicode Technical report 24). No check is made for ch being valid unicode character; if you pass in invalid character, the result is undefined.

pango_script_get_sample_language ()

PangoLanguage* pango_script_get_sample_language
                                            (PangoScript script);

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

Since 1.4

pango_language_includes_script ()

gboolean    pango_language_includes_script  (PangoLanguage *language,
                                             PangoScript script);

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

Since 1.4

pango_script_iter_new ()

PangoScriptIter* pango_script_iter_new      (const char *text,
                                             int length);

Create a new PangoScriptIter, used to break a string of Unicode into runs by text. No copy is made of text, so the caller needs to make sure it remains valid until the iterator is freed with pango_script_iter_free().x

pango_script_iter_get_range ()

void        pango_script_iter_get_range     (PangoScriptIter *iter,
                                             G_CONST_RETURN char **start,
                                             G_CONST_RETURN char **end,
                                             PangoScript *script);

Gets information about the range to which iter currently points. The range is the set of locations p where *start <= p < *end. (That is, it doesn't include the character stored at *end)

pango_script_iter_next ()

gboolean    pango_script_iter_next          (PangoScriptIter *iter);

Advances a PangoScriptIter to the next range. If the iter is already at the end, it is left unchanged and FALSE is returned.

pango_script_iter_free ()

void        pango_script_iter_free          (PangoScriptIter *iter);

Frees a PangoScriptIter created with pango_script_iter_new().