#include #include #include #include #include #include const char s[4096]; struct nfa_stack { void *data; unsigned long sz; }; struct nfa_bp_rec { long state; const char *p; long popTrans; long q_2; }; static const char _genrep_key_offsets [] = { 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 0 , }; static const unsigned char _genrep_trans_keys [] = { 97u, 97u, 0u, }; static const char _genrep_single_lengths [] = { 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0 , }; static const char _genrep_range_lengths [] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 , }; static const char _genrep_index_offsets [] = { 0, 0, 1, 3, 4, 5, 6, 8, 9, 10, 0 , }; static const char _genrep_trans_cond_spaces [] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, 0 , }; static const char _genrep_trans_offsets [] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 0 , }; static const char _genrep_trans_lengths [] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0 , }; static const char _genrep_cond_keys [] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 , }; static const char _genrep_cond_targs [] = { 0, 3, 0, 0, 0, 0, 7, 0, 0, 9, 0, 0 , }; static const char _genrep_cond_actions [] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 0, 0 , }; static const char _genrep_nfa_targs [] = { 0, 1, 2, 3, 5, 2, 4, 1, 6, 3, 8, 6, 4, 0 , }; static const char _genrep_nfa_offsets [] = { 0, 1, 0, 3, 0, 7, 0, 9, 0, 0, 0 , }; static const char _genrep_nfa_push_actions [] = { 0, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0 , }; static const char _genrep_nfa_pop_trans [] = { 0, 0, 4, 0, 7, 6, 5, 0, 4, 0, 7, 6, 5, 0 , }; static const int genrep_start = 1; static const int genrep_first_final = 9; static const int genrep_error = 0; static const int genrep_en_main = 1; int test( const char *p ) { int len = strlen( p ) + 1; const char *pe = p + len; const char *eof = pe; int cs; struct nfa_bp_rec *nfa_bp = (struct nfa_bp_rec*) s; long nfa_len = 0; long nfa_count = 0; long q_2 = 0; printf( "testing: %s\n", p ); { cs = ( int ) genrep_start; nfa_len = 0; } { unsigned int _nfa_cont = 1; unsigned int _nfa_repeat = 1; while ( _nfa_cont != 0 ) { int _klen; const unsigned char *_keys; const char *_ckeys; int _cpc; unsigned int _trans; unsigned int _cond = 0; unsigned int _have = 0; unsigned int _cont = 1; while ( _cont == 1 ) { if ( cs == 0 ) _cont = 0; _have = 0; if ( p == pe ) { if ( _have == 0 ) _cont = 0; } if ( _cont == 1 ) { if ( _have == 0 ) { if ( _genrep_nfa_offsets[cs] ) { int alt = 0; int new_recs = _genrep_nfa_targs[( int ) _genrep_nfa_offsets[cs]]; while ( alt < new_recs ) { nfa_bp[nfa_len].state = _genrep_nfa_targs[( int ) _genrep_nfa_offsets[cs]+ 1 + alt]; nfa_bp[nfa_len].p = p; nfa_bp[nfa_len].popTrans = ( long ) _genrep_nfa_offsets[cs]+ 1 + alt; switch ( _genrep_nfa_push_actions[( int ) _genrep_nfa_offsets[cs]+ 1 + alt] ) { case 1 : { nfa_bp[nfa_len].q_2 = q_2; } break; } nfa_len += 1; alt += 1; } } _keys = _genrep_trans_keys + _genrep_key_offsets[cs]; _trans = ( unsigned int ) _genrep_index_offsets[cs]; _have = 0; _klen = ( int ) _genrep_single_lengths[cs]; if ( _klen > 0 ) { const unsigned char *_lower; const unsigned char *_mid; const unsigned char *_upper; _lower = _keys; _upper = _keys + _klen - 1; while ( _upper >= _lower && _have == 0 ) { _mid = _lower + ((_upper-_lower)>> 1); if ( ((*( p )) )< (*( _mid )) ) _upper = _mid - 1; else if ( ((*( p )) )> (*( _mid )) ) _lower = _mid + 1; else { _trans += ( unsigned int ) (_mid - _keys); _have = 1; } } if ( _have == 0 ) { _keys += _klen; _trans += ( unsigned int ) _klen; } } if ( _have == 0 ) { _klen = ( int ) _genrep_range_lengths[cs]; if ( _klen > 0 ) { const unsigned char *_lower; const unsigned char *_mid; const unsigned char *_upper; _lower = _keys; _upper = _keys + (_klen<<1)- 2; while ( _have == 0 && _lower <= _upper ) { _mid = _lower + (((_upper-_lower)>> 1)& ~1); if ( ((*( p )) )< (*( _mid )) ) _upper = _mid - 2; else if ( ((*( p )) )> (*( _mid + 1 )) ) _lower = _mid + 2; else { _trans += ( unsigned int ) ((_mid - _keys)>>1); _have = 1; } } if ( _have == 0 ) _trans += ( unsigned int ) _klen; } } _ckeys = _genrep_cond_keys + _genrep_trans_offsets[_trans]; _klen = ( int ) _genrep_trans_lengths[_trans]; _cond = ( unsigned int ) _genrep_trans_offsets[_trans]; _have = 0; _cpc = 0; switch ( _genrep_trans_cond_spaces[_trans] ) { case 0 : if ( (p+1 == eof ) ) _cpc += 1; break; } { const char *_lower; const char *_mid; const char *_upper; _lower = _ckeys; _upper = _ckeys + _klen - 1; while ( _have == 0 && _lower <= _upper ) { _mid = _lower + ((_upper-_lower)>> 1); if ( _cpc < ( int ) (*( _mid )) ) _upper = _mid - 1; else if ( _cpc > ( int ) (*( _mid )) ) _lower = _mid + 1; else { _cond += ( unsigned int ) (_mid - _ckeys); _have = 1; } } if ( _have == 0 ) { cs = 0; _cont = 0; } } } if ( _cont == 1 ) { cs = ( int ) _genrep_cond_targs[_cond]; switch ( _genrep_cond_actions[_cond] ) { case 8 : { printf( "------ MATCH\n" ); } break; } if ( cs == 0 ) _cont = 0; if ( _cont == 1 ) p += 1; } } } _nfa_repeat = 1; while ( _nfa_repeat ) { _nfa_repeat = 0; if ( nfa_len > 0 ) { int _pop_test = 1; nfa_count += 1; nfa_len -= 1; p = nfa_bp[nfa_len].p; switch ( _genrep_nfa_pop_trans[nfa_bp[nfa_len].popTrans] ) { case 4 : _pop_test = (({ q_2 = nfa_bp[nfa_len].q_2; 1; }) ); if ( !_pop_test ) break; _pop_test = (({ q_2 = 0; 1; }) ); break; case 5 : _pop_test = (({ q_2 = nfa_bp[nfa_len].q_2; 1; }) ); if ( !_pop_test ) break; _pop_test = (({ 1; }) ); break; case 6 : _pop_test = (({ q_2 = nfa_bp[nfa_len].q_2; 1; }) ); if ( !_pop_test ) break; _pop_test = (({ ++q_2 < 3; }) ); break; case 7 : _pop_test = (({ q_2 = nfa_bp[nfa_len].q_2; 1; }) ); if ( !_pop_test ) break; _pop_test = (({ ++q_2 >= 2; }) ); break; } if ( _pop_test ) { cs = nfa_bp[nfa_len].state; _nfa_cont = 1; _nfa_repeat = 0; } else { _nfa_cont = 0; _nfa_repeat = 1; } } else { _nfa_cont = 0; _nfa_repeat = 0; } } } } return 0; } int main() { test( "a" ); test( "aa" ); test( "aaa" ); test( "aaaa" ); test( "aaaaa" ); test( "aaaaaa" ); test( "aaaaaaa" ); test( "aaaaaaaa" ); return 0; }