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#include <stdio.h>
#include <cleri/cleri.h>
const char * TestPrio = "(ni or ni) and (ni or ni)";
int main(void)
{
/*
* define grammar.
*
* Note: The third and fourth element are using a reference to the prio
* element at the same position in the string as the prio element.
* This is why a forward reference cannot be used for this example.
*/
cleri_t * prio = cleri_prio(
0, // gid, not used in the example
4, // number of elements
cleri_keyword(0, "ni", 0), // first element
cleri_sequence(0, 3, // second element
cleri_token(0, "("),
CLERI_THIS,
cleri_token(0, ")")),
cleri_sequence(0, 3, // third element
CLERI_THIS,
cleri_keyword(0, "or", 0),
CLERI_THIS),
cleri_sequence(0, 3, // fourth element
CLERI_THIS,
cleri_keyword(0, "and", 0),
CLERI_THIS));
/* create grammar */
cleri_grammar_t * grammar = cleri_grammar(prio, NULL);
/* parse some test string */
cleri_parse_t * pr = cleri_parse(grammar, TestPrio);
printf("Test: %s, '%s'\n", pr->is_valid ? "true" : "false", TestPrio);
/* cleanup */
cleri_parse_free(pr);
cleri_grammar_free(grammar);
return 0;
}
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