flex/examples/manual/example_r.lex
Eric S. Raymond 8d0162b80a Update all the examples to use the new API elements.
Add a fully reentrant example.  And update to TODO file.
2020-10-12 21:07:14 -04:00

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/* basic example - flawed reentrant version with global */
%{
int num_lines = 0, num_chars = 0;
%}
%option reentrant noyywrap
%%
\n ++num_lines; ++num_chars;
. ++num_chars;
%%
int main() {
yyscan_t scanner;
yylex_init ( &scanner );
yylex ( scanner );
yylex_destroy ( scanner );
printf( "# of lines = %d, # of chars = %d\n",
num_lines, num_chars );
}