| 1 | #include <stdio.h> |
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| 2 | |
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| 3 | #include "libbst.h" |
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| 4 | #include "libbst_test.h" |
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| 5 | |
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| 6 | int start( bst_ptr* root, FILE* out, FILE* in ); |
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| 7 | void print_menu(); |
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| 8 | |
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| 9 | int main( int argc, char** argv ){ |
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| 10 | |
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| 11 | bst_ptr root=NULL; |
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| 12 | |
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| 13 | FILE* out; |
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| 14 | FILE* in; |
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| 15 | |
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| 16 | if( argc == 1 ){ |
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| 17 | |
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| 18 | in = stdin; |
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| 19 | out = stdout; |
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| 20 | |
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| 21 | } |
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| 22 | else if( !strcmp( argv[1] , "-f" ) && argc >= 3){ |
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| 23 | |
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| 24 | if( in = fopen( argv[2], "r" ) ){ |
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| 25 | |
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| 26 | if( ( out = fopen( "test.out", "w" ) ) == NULL ){ |
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| 27 | |
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| 28 | printf("Error: failed open the file for output..\n"); |
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| 29 | return -1; |
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| 30 | |
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| 31 | } |
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| 32 | |
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| 33 | } |
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| 34 | else{ |
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| 35 | |
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| 36 | printf("Error: failed open the file for input..\n"); |
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| 37 | return -1; |
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| 38 | |
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| 39 | } |
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| 40 | |
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| 41 | } |
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| 42 | else |
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| 43 | printf("Error: incorrect argument!!\n"); |
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| 44 | |
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| 45 | start( &root, out, in ); |
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| 46 | return 0; |
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| 47 | } |
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| 48 | |
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| 49 | int start( bst_ptr* root, FILE* out, FILE* in ){ |
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| 50 | |
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| 51 | char menu; |
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| 52 | int var; |
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| 53 | |
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| 54 | int status; |
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| 55 | bst_ptr tmp; |
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| 56 | |
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| 57 | while( 1 ){ |
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| 58 | |
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| 59 | printf(">"); |
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| 60 | status = fscanf( in, " %c", &menu ); |
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| 61 | |
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| 62 | if( status == -1 ) |
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| 63 | break; |
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| 64 | |
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| 65 | else { |
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| 66 | |
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| 67 | switch( menu ){ |
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| 68 | |
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| 69 | case 'a': |
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| 70 | case 'A': |
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| 71 | |
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| 72 | if( fscanf( in, " %d", &var ) ){ |
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| 73 | |
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| 74 | if( bst_add( root, var ) != ERROR ) |
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| 75 | fprintf( out, "Add node %d\n", var ); |
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| 76 | |
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| 77 | else |
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| 78 | fprintf( out, "Add node : %d error\n", var ); |
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| 79 | |
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| 80 | } |
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| 81 | else |
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| 82 | fprintf( out, "Add node : Wrong parameter..\n" ); |
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| 83 | |
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| 84 | break; |
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| 85 | |
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| 86 | case 'd': |
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| 87 | case 'D': |
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| 88 | |
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| 89 | if( fscanf( in, " %d", &var ) ){ |
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| 90 | |
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| 91 | if( bst_del( root, var ) == ERROR ) |
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| 92 | fprintf( out, "Can't find node %d\n", var ); |
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| 93 | |
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| 94 | else |
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| 95 | fprintf( out, "Del node %d\n", var ); |
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| 96 | |
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| 97 | } |
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| 98 | else |
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| 99 | fprintf( out, "Del node : wring parameter..\n" ); |
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| 100 | |
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| 101 | break; |
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| 102 | |
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| 103 | case 's': |
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| 104 | case 'S': |
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| 105 | if( fscanf( in, " %d", &var ) ){ |
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| 106 | |
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| 107 | if( ( tmp = bst_search( (*root), var ) ) == NULL ) |
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| 108 | fprintf( out, "Can't find node %d\n", var ); |
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| 109 | |
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| 110 | else |
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| 111 | fprintf( out, "Search node %d\n", tmp->var ); |
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| 112 | |
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| 113 | } |
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| 114 | else |
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| 115 | fprintf( out, "Search node : wrong parameter..\n" ); |
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| 116 | |
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| 117 | break; |
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| 118 | |
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| 119 | case 'm': |
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| 120 | case 'M': |
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| 121 | print_menu( out ); |
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| 122 | break; |
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| 123 | |
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| 124 | case 'q': |
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| 125 | case 'Q': |
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| 126 | goto for_break; |
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| 127 | break; |
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| 128 | |
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| 129 | case 'P': |
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| 130 | case 'p': |
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| 131 | bst_print( *root, out ); |
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| 132 | break; |
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| 133 | |
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| 134 | default: |
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| 135 | fprintf( out, "Incorrect menu.. skipping\n"); |
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| 136 | break; |
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| 137 | |
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| 138 | } |
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| 139 | |
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| 140 | } |
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| 141 | |
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| 142 | } |
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| 143 | for_break: |
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| 144 | ; |
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| 145 | } |
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| 146 | |
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| 147 | void print_menu( FILE* out ){ |
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| 148 | |
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| 149 | fprintf( out, "--------------------------\n"); |
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| 150 | fprintf( out, " ADD node : A(a) \n"); |
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| 151 | fprintf( out, " DELETE node : D(d) \n"); |
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| 152 | fprintf( out, " SEARCH tree : S(s) \n"); |
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| 153 | fprintf( out, " PRINT tree : P(p) \n"); |
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| 154 | fprintf( out, " MENU : M(m) \n"); |
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| 155 | fprintf( out, " Quit program : Q(q) \n"); |
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| 156 | fprintf( out, "--------------------------\n"); |
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| 157 | |
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| 158 | } |
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