`bit-vector' (*note Bit Vectors::). This function has not been
available in XEmacs prior to 21.0 and FSF Emacs prior to 20.3.
- - Function: make-string count character
- This function returns a string made up of COUNT repetitions of
- CHARACTER. If COUNT is negative, an error is signaled.
+ - Function: make-string length character
+ This function returns a new string consisting entirely of LENGTH
+ successive copies of CHARACTER. LENGTH must be a non-negative
+ integer.
(make-string 5 ?x)
=> "xxxxx"
Character Codes
===============
- - Function: char-int ch
+ - Function: char-int character
This function converts a character into an equivalent integer.
The resulting integer will always be non-negative. The integers in
the range 0 - 255 map to characters as follows:
Comparison of Characters and Strings
====================================
- - Function: char-equal character1 character2
+ - Function: char-equal character1 character2 &optional buffer
This function returns `t' if the arguments represent the same
character, `nil' otherwise. This function ignores differences in
- case if `case-fold-search' is non-`nil'.
+ case if the value of `case-fold-search' is non-`nil' in BUFFER,
+ which defaults to the current buffer.
(char-equal ?x ?x)
=> t
See also the function `format' in *Note Formatting Strings::.
- Function: string-to-number string &optional base
- This function returns the numeric value of the characters in
- STRING, read in BASE. It skips spaces and tabs at the beginning
- of STRING, then reads as much of STRING as it can interpret as a
+ This function returns the numeric value represented by STRING,
+ read in BASE. It skips spaces and tabs at the beginning of
+ STRING, then reads as much of STRING as it can interpret as a
number. (On some systems it ignores other whitespace at the
- beginning, not just spaces and tabs.) If the first character after
- the ignored whitespace is not a digit or a minus sign, this
+ beginning, not just spaces and tabs.) If the first character
+ after the ignored whitespace is not a digit or a minus sign, this
function returns 0.
If BASE is not specified, it defaults to ten. With BASE other
The examples below use the characters `X' and `x' which have ASCII
codes 88 and 120 respectively.
- - Function: downcase string-or-char
+ - Function: downcase string-or-char &optional buffer
This function converts a character or a string to lower case.
When the argument to `downcase' is a string, the function creates
XEmacs 19.) If the original character is lower case, or is not a
letter, then the value equals the original character.
+ Optional second arg BUFFER specifies which buffer's case tables to
+ use, and defaults to the current buffer.
+
(downcase "The cat in the hat")
=> "the cat in the hat"
=> ?x ;; Under XEmacs 20.
=> 120 ;; Under XEmacs 19.
- - Function: upcase string-or-char
+ - Function: upcase string-or-char &optional buffer
This function converts a character or a string to upper case.
When the argument to `upcase' is a string, the function creates
case, or is not a letter, then the value equals the original
character.
+ Optional second arg BUFFER specifies which buffer's case tables to
+ use, and defaults to the current buffer.
+
(upcase "The cat in the hat")
=> "THE CAT IN THE HAT"
=> ?X ;; Under XEmacs 20.
=> 88 ;; Under XEmacs 19.
- - Function: capitalize string-or-char
+ - Function: capitalize string-or-char &optional buffer
This function capitalizes strings or characters. If
STRING-OR-CHAR is a string, the function creates and returns a new
string, whose contents are a copy of STRING-OR-CHAR in which each
When the argument to `capitalize' is a character, `capitalize' has
the same result as `upcase'.
+ Optional second arg BUFFER specifies which buffer's case tables to
+ use, and defaults to the current buffer.
+
(capitalize "The cat in the hat")
=> "The Cat In The Hat"
- Function: case-table-p object
This predicate returns non-`nil' if OBJECT is a valid case table.
- - Function: set-standard-case-table table
- This function makes TABLE the standard case table, so that it will
- apply to any buffers created subsequently.
+ - Function: set-standard-case-table case-table
+ This function makes CASE-TABLE the standard case table, so that it
+ will apply to any buffers created subsequently.
- Function: standard-case-table
This returns the standard case table.
- - Function: current-case-table
- This function returns the current buffer's case table.
+ - Function: current-case-table &optional buffer
+ This function returns the case table of BUFFER, which defaults to
+ the current buffer.
- - Function: set-case-table table
- This sets the current buffer's case table to TABLE.
+ - Function: set-case-table case-table
+ This sets the current buffer's case table to CASE-TABLE.
The following three functions are convenient subroutines for packages
that define non-ASCII character sets. They modify a string
character. Higher-level Lisp functions are provided for working
with syntax tables. The valid values are integers.
- - Function: char-table-type table
- This function returns the type of char table TABLE.
+ - Function: char-table-type char-table
+ This function returns the type of char table CHAR-TABLE.
- Function: char-table-type-list
This function returns a list of the recognized char table types.
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.
+ - Function: put-char-table range value char-table
+ This function sets the value for chars in RANGE to be VALUE in
+ CHAR-TABLE.
RANGE specifies one or more characters to be affected and should be
one of the following:
* A single character
- VAL must be a value appropriate for the type of TABLE.
+ VALUE must be a value appropriate for the type of CHAR-TABLE.
- - Function: get-char-table ch table
- This function finds the value for char CH in TABLE.
+ - Function: get-char-table character char-table
+ This function finds the value for CHARACTER in CHAR-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: get-range-char-table range char-table &optional multi
+ This function finds the value for a range in CHAR-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: reset-char-table char-table
+ This function resets 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.
+ - Function: map-char-table function char-table &optional range
+ This function maps FUNCTION over entries in CHAR-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
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