/* 
 * lexer.h
 *   by CMB
 *
 */

extern FILE *yyin;   // the name of the source code file the lexer will process
                     // flex uses this variable

extern void initLexer();  // needs to be called before first call to yylex.
                          // defined in espresso.flex

extern int yylex();  // the lexical analyzer routine generated by flex
                     // this will be called by lextest.cc repeatedly

extern int linenum;  // the current line number of text input
                     // lexer needs to update (i.e., code in espresso.flex)
                     // lextest needs to report the value

extern YYSTYPE yylval;  // the value associated with the current token
                     // lexer needs to update; lextest needs to report

extern StringTab stringtab;  // the string table variable