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- /*--------------------------------------------------------------*/
- /* ANIMDAT 1.1 */
- /* copyright 1992 - TODD SANKEY */
- /* */
- /* The author hereby grants permission for the use and sharing */
- /* of both source code end executable versions of this software */
- /* at no charge. This software is not for sale and no other */
- /* shall charge for it without the expressed consent of the */
- /* author. */
- /* */
- /* The source code can be freely modified, but it must retain */
- /* the original copyright notice, and the author must be */
- /* notified of these changes if the altered code is to be */
- /* distributed. */
- /*--------------------------------------------------------------*/
- /*------------------------------------------------------*/
- /* scanner.h Interface for scanning and tokeninzing */
- /* an expression. */
- /*------------------------------------------------------*/
-
- #ifndef scanner_h
- #define scanner_h
-
- /* token types */
- typedef enum {
- NO_TOKEN, IDENTIFIER, NUMBER, STRING,
- CARET, STAR, LPAREN, RPAREN,
- MINUS, PLUS, EQUAL, LT,
- GT, LE, GE, NE,
- SLASH, COMMA, OR, AND,
- SIN, COS, TAN, EXP,
- LOG, RND, ATAN, ASIN,
- ACOS, POUND, QUOTE, ERROR,
- NUMSCENE, PERCENT, END_OF_FILE
- } TOKEN_CODE;
-
-
- /* globals for accessing tokens */
- extern TOKEN_CODE token;
- extern char word_string[];
- extern double literal_value;
- extern char *token_names[];
-
- /* routines for processing tokens */
- void init_scanner(char *buffer_ptr); /* Set the scanner to a point in the
- source buffer and start scanning
- from that point. */
- void get_token(); /* updates the token global variable */
-
- #endif
-