(char-upcase char) | Function: Return CHAR converted to upper-case if that is possible. Don't convert lowercase eszet (U+DF).
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Example:
(defun iso-uc (char)
"Returns upper case CHAR."
(char-upcase char))
| Mentioned in:
CLtL2 - 13. Characters
CLtL2 - 13.2. Predicates on Characters
CLtL2 - 13.4. Character Conversions
CLtL2 - 18.3. String Construction and Manipulation
HyperSpec - Function CHAR-UPCASE, CHAR-DOWNCASE
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(char-name char) | Function: Return the name (a STRING) for a CHARACTER object.
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| | Mentioned in:
CLtL2 - 13.4. Character Conversions
HyperSpec - Function CHAR-NAME
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(char-lessp character &rest more-characters) | Function: Return T if the arguments are in strictly increasing alphabetic order. Case is ignored.
|
| | Mentioned in:
CLtL2 - 13. Characters
CLtL2 - 13.2. Predicates on Characters
CLtL2 - 14.5. Sorting and Merging
CLtL2 - 18.2. String Comparison
HyperSpec - Function CHAR=, CHAR/=, CHAR<, CHAR>, CHAR<=, CHAR>=, CHAR-EQUAL, CHAR-NOT-EQUAL, CHAR-LESSP, CHAR-GREATERP, CHAR-NOT-GREATERP, CHAR-NOT-LESSP
PCL - character comparisons
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(char-int char) | Function: Return the integer code of CHAR. (In SBCL this is the same as CHAR-CODE, as there are no character bits or fonts.)
|
| | Mentioned in:
CLtL2 - 13.2. Predicates on Characters
CLtL2 - 13.4. Character Conversions
CLtL2 - 4.8. Type Conversion Function
HyperSpec - Function CHAR-INT
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(char-equal character &rest more-characters) | Function: Return T if all of the arguments are the same character. Case is ignored.
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| | Mentioned in:
CLtL2 - 13. Characters
CLtL2 - 13.2. Predicates on Characters
CLtL2 - 18.2. String Comparison
CLtL2 - 6.3. Equality Predicates
HyperSpec - Function CHAR=, CHAR/=, CHAR<, CHAR>, CHAR<=, CHAR>=, CHAR-EQUAL, CHAR-NOT-EQUAL, CHAR-LESSP, CHAR-GREATERP, CHAR-NOT-GREATERP, CHAR-NOT-LESSP
PCL - character comparisons
Successful Lisp - chapter17
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(char-code char) | Function: Return the integer code of CHAR.
|
Example:
(defun char-el? (el)
(let ((char-code (char-code el)))
(and (>= char-code 0) (<= char-code 127))))
| Mentioned in:
CLtL2 - 13.1 Character Attributes
CLtL2 - 13.3. Character Construction and Selection
CLtL2 - 13.4. Character Conversions
CLtL2 - 4.8. Type Conversion Function
HyperSpec - Function CHAR-CODE
PCL - implementing shoutcast
PCL - primitive binary types
PCL - string types
PCL - strings in binary files
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