1 // A test case for the LEMON parser generator. Run as follows: 2 // 3 // lemon lemon-test01.y && gcc -g lemon-test01.c && ./a.out 4 // 5 %token_prefix TK_ 6 %token_type int 7 %default_type int 8 %include { 9 static int nSyntaxError = 0; 10 static int nAccept = 0; 11 static int nFailure = 0; 12 } 13 14 all ::= A B. 15 all ::= error B. 16 17 %syntax_error { 18 nSyntaxError++; 19 } 20 %parse_accept { 21 nAccept++; 22 } 23 %parse_failure { 24 nFailure++; 25 } 26 %code { 27 #include <assert.h> 28 #include "lemon-test01.h" 29 static int nTest = 0; 30 static int nErr = 0; testCase(int testId,int shouldBe,int actual)31 static int testCase(int testId, int shouldBe, int actual){ 32 nTest++; 33 if( shouldBe==actual ){ 34 printf("test %d: ok\n", testId); 35 }else{ 36 printf("test %d: got %d, expected %d\n", testId, actual, shouldBe); 37 nErr++; 38 } 39 } main(int argc,char ** argv)40 int main(int argc, char **argv){ 41 yyParser xp; 42 ParseInit(&xp); 43 Parse(&xp, TK_A, 0); 44 Parse(&xp, TK_B, 0); 45 Parse(&xp, 0, 0); 46 ParseFinalize(&xp); 47 testCase(100, 0, nSyntaxError); 48 testCase(110, 1, nAccept); 49 testCase(120, 0, nFailure); 50 nSyntaxError = nAccept = nFailure = 0; 51 ParseInit(&xp); 52 Parse(&xp, TK_B, 0); 53 Parse(&xp, TK_B, 0); 54 Parse(&xp, 0, 0); 55 ParseFinalize(&xp); 56 testCase(200, 1, nSyntaxError); 57 testCase(210, 1, nAccept); 58 testCase(220, 0, nFailure); 59 nSyntaxError = nAccept = nFailure = 0; 60 ParseInit(&xp); 61 Parse(&xp, TK_A, 0); 62 Parse(&xp, TK_A, 0); 63 Parse(&xp, 0, 0); 64 ParseFinalize(&xp); 65 testCase(200, 1, nSyntaxError); 66 testCase(210, 0, nAccept); 67 testCase(220, 0, nFailure); 68 if( nErr==0 ){ 69 printf("%d tests pass\n", nTest); 70 }else{ 71 printf("%d errors out %d tests\n", nErr, nTest); 72 } 73 return nErr; 74 } 75 } 76