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81 lines
2.2 KiB
Plaintext
81 lines
2.2 KiB
Plaintext
/**************************************
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* ctype - Character Typing Functions *
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**************************************/
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/* Check for Alphanumeric Character *
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* (Alphabetic or Digit) *
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* Args: c - Character to Check *
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* Returns: TRUE or FALSE */
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byte isalnm();
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/* Checks for Alphabetic Character *
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* (Upper Case or Lower Case) *
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* Args: c - Character to Check *
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* Returns: TRUE or FALSE */
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byte isalph();
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/* Checks for Control Character *
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* (Less than Space or Delete) *
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* Args: c - Character to Check *
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* Returns: TRUE or FALSE */
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byte isctrl();
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/* Checks for Digit Character *
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* (In range 0-9) *
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* Args: c - Character to Check *
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* Returns: TRUE or FALSE */
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byte isdigt();
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/* Checks for Graphical Character *
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* (Printable except Space) *
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* Args: c - Character to Check *
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* Returns: TRUE or FALSE */
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byte isgrph();
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/* Checks for Hex Digit Character *
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* (In range 0-9, A-F, or a-f) *
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* Args: c - Character to Check *
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* Returns: TRUE or FALSE */
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byte ishdgt();
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/* Checks for Lower Case Character *
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* (In range a-z) *
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* Args: c - Character to Check *
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* Returns: TRUE or FALSE */
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byte islowr();
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/* Checks for Printable Character *
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* (Not High ASCII nor Control) *
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* Args: c - Character to Check *
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* Returns: TRUE or FALSE */
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byte isprnt();
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/* Checks for Punctuation Character *
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* (Printable not Alphanumeric) *
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* Args: c - Character to Check *
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* Returns: TRUE or FALSE */
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byte ispnct();
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/* Checks for White Space Character *
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* (Space, Tab, NL, VT, FF, CR) *
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* Args: c - Character to Check *
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* Returns: TRUE or FALSE */
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byte isspce();
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/* Checks for Upper Case Character *
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* (In range A-Z) *
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* Args: c - Character to Check *
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* Returns: TRUE or FALSE */
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byte isuppr();
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/* Convert Character to Lower Case *
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* Args: c - Character to Convert *
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* Returns: Converted Character */
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byte tolowr();
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/* Convert Character to Upper Case *
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* Args: c - Character to Convert *
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* Returns: Converted Character */
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byte touppr();
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