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Chartable - Chartable objects and API for them. Typedefs typedef struct MCharTable MCharTable Type of chartables. Functions MCharTable * mchartable (MSymbol key, void *default_value) Create a new chartable. int mchartable_min_char (MCharTable *table) Return the minimum character whose value is set in a chartabe. int mchartable_max_char (MCharTable *table) Return the maximum character whose value is set in a chartabe. void * mchartable_lookup (MCharTable *table, int c) Return the assigned value of a character in a chartable. int mchartable_set (MCharTable *table, int c, void *val) Assign a value to a character in a chartable. int mchartable_set_range (MCharTable *table, int from, int to, void *val) Assign a value to the characters in the specified range. void mchartable_range (MCharTable *table, int *from, int *to) Search for characters that have non-default value. int mchartable_map (MCharTable *table, void *ignore, void(*func)(int, int, void *, void *), void *func_arg) Call a function for characters in a chartable. Variables MSymbol Mchar_table Symbol whose name is 'char-table'.
Chartable objects and API for them. The m17n library supports enormous number of characters. Thus, if attributes of each character are to be stored in a simple array, such an array would be impractically big. The attributes usually used, however, are often assigned only to a range of characters. Even when all characters have attributes, characters of consecutive character code tend to have the same attribute values. The m17n library utilizes this tendency to store characters and their attribute values efficiently in an object called Chartable. Although a chartable object is not a simple array, application programs can handle a chartable as if it is an array. Attribute values of a character can be obtained by accessing a Chartable for the attribute with the character code of the specified character. A chartable is a managed object.
typedef struct MCharTable MCharTable Type of chartables. The type MCharTable is for a chartable objects. Its internal structure is concealed from application programs.
MSymbol Mchar_table Symbol whose name is 'char-table'. The symbol Mchar_table has the name 'char-table'.
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