lispref.info: Working With Char Tables

Char Tables

Char Table Types

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Working With Char Tables
------------------------

 - Function: make-char-table TYPE
     This function makes a new, empty char table of type TYPE.  TYPE
     should be a symbol, one of `char', `category', `display',
     `generic', or `syntax'.

 - Function: put-char-table RANGE VAL TABLE
     This function sets the value for chars in RANGE to be VAL in TABLE.

     RANGE specifies one or more characters to be affected and should be
     one of the following:

        * `t' (all characters are affected)

        * A charset (only allowed when MULE support is present)

        * A vector of two elements: a two-octet charset and a row number
          (only allowed when MULE support is present)

        * A single character

     VAL must be a value appropriate for the type of TABLE.

 - Function: get-char-table CH TABLE
     This function finds the value for char CH in TABLE.

 - Function: get-range-char-table RANGE TABLE &optional MULTI
     This function finds the value for a range in TABLE.  If there is
     more than one value, MULTI is returned (defaults to `nil').

 - Function: reset-char-table TABLE
     This function resets a char table to its default state.

 - Function: map-char-table FUNCTION TABLE &optional RANGE
     This function maps FUNCTION over entries in TABLE, calling it with
     two args, each key and value in the table.

     RANGE specifies a subrange to map over and is in the same format
     as the RANGE argument to `put-range-table'.  If omitted or `t', it
     defaults to the entire table.

 - Function: valid-char-table-value-p VALUE CHAR-TABLE-TYPE
     This function returns non-`nil' if VALUE is a valid value for
     CHAR-TABLE-TYPE.

 - Function: check-valid-char-table-value VALUE CHAR-TABLE-TYPE
     This function signals an error if VALUE is not a valid value for
     CHAR-TABLE-TYPE.