[da5afdf] | 1 | %option stack |
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| 2 | %x BOOLEAN_S |
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| 3 | %x INTEGER_S |
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| 4 | %x FLOAT_S |
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| 5 | %x TIME_S |
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| 6 | %x URN_S |
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| 7 | %x STRING_S |
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| 8 | %x KEYID_S |
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| 9 | %x RANGE_S |
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| 10 | |
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| 11 | %top{ |
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[718ad924] | 12 | #include <stdio.h> |
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| 13 | #include <string.h> |
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| 14 | #include "rt2.h" |
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| 15 | |
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[e88c95b] | 16 | static int debug=0; |
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[718ad924] | 17 | |
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| 18 | /* if using canned fixed test string */ |
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| 19 | char INPUT_LINE[] = "usc.playground <- usc.employee.friend"; |
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[b5a3da4] | 20 | char *yyfptr = INPUT_LINE; /* assigned with default */ |
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[da5afdf] | 21 | char *yyfptr_encoded=NULL; |
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[b5a3da4] | 22 | |
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| 23 | /* with yacc */ |
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| 24 | extern YYSTYPE yylval; |
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[da5afdf] | 25 | extern char* abac_encode_string(char *); |
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[718ad924] | 26 | |
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| 27 | #undef YY_INPUT |
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| 28 | #define YY_INPUT(buf,result,max_size) \ |
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| 29 | { \ |
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| 30 | if(yyfptr != NULL) { \ |
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| 31 | char* c = strncpy(buf,yyfptr,max_size); \ |
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| 32 | if (max_size > 0) buf[max_size-1] = '\0'; \ |
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| 33 | if(strlen(yyfptr) > max_size) yyfptr = yyfptr + max_size-1; \ |
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| 34 | else yyfptr=NULL; \ |
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| 35 | result = (c == NULL ) ? YY_NULL : strlen(buf); \ |
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| 36 | } else { \ |
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| 37 | buf[0] = '\0'; \ |
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| 38 | result = YY_NULL; \ |
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| 39 | } \ |
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| 40 | } |
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| 41 | |
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[da5afdf] | 42 | } |
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| 43 | |
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| 44 | DIGIT [0-9] |
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| 45 | %% |
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| 46 | \. { if(debug) fprintf(yyout, " DOT " ); |
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| 47 | return DOT; } |
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| 48 | keyid { yylval.string=strdup(yytext); |
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| 49 | if(debug) fprintf(yyout," KEYTYPE "); |
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| 50 | return KEYTYPE; } |
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[b5a3da4] | 51 | <KEYID_S>[a-zA-Z0-9]+ { |
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[da5afdf] | 52 | yylval.string=strdup(yytext); |
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| 53 | if(debug) fprintf(yyout," KEYID_CONSTANT "); |
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| 54 | return KEYID_CONSTANT; } |
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| 55 | oset { if(debug) fprintf(yyout," OSET "); |
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| 56 | return OSET; } |
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| 57 | role { if(debug) fprintf(yyout," ROLE "); |
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| 58 | return ROLE; } |
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| 59 | principal { if(debug) fprintf(yyout," PRINCIPAL "); |
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| 60 | return PRINCIPAL; } |
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| 61 | integer { yylval.string=strdup(yytext); |
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| 62 | if(debug) fprintf(yyout," OTYPE(INTEGER) "); |
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| 63 | return OTYPE; } |
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[b5a3da4] | 64 | <INTEGER_S>{DIGIT}+ { |
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[da5afdf] | 65 | yylval.string=strdup(yytext); |
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| 66 | if(debug) fprintf(yyout," OTYPE_CONSTANT(INTEGER) "); |
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| 67 | return OTYPE_CONSTANT; } |
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[b5a3da4] | 68 | <INTEGER_S>[-]{DIGIT}+ { |
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[da5afdf] | 69 | yylval.string=strdup(yytext); |
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| 70 | if(debug) fprintf(yyout," OTYPE_CONSTANT(INTEGER) "); |
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| 71 | return OTYPE_CONSTANT; } |
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| 72 | boolean { yylval.string =strdup(yytext); |
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| 73 | if(debug) fprintf(yyout," OTYPE(BOOLEAN) "); |
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| 74 | return OTYPE; } |
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| 75 | <BOOLEAN_S>true|false { |
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| 76 | yylval.string=strdup(yytext); |
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| 77 | if(debug) fprintf(yyout," OTYPE_CONSTANT(BOOLEAN) "); |
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| 78 | return OTYPE_CONSTANT; } |
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[efacf92] | 79 | <BOOLEAN_S,INTEGER_S,FLOAT_S,URN_S,STRING_S,TIME_S>[?][A-Z][\-_a-zA-Z0-9]* { |
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[da5afdf] | 80 | yylval.string=strdup(yytext+1); |
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| 81 | if(debug) fprintf(yyout," VARIABLE_CONSTANT(%s) ",yylval.string); |
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| 82 | return VARIABLE_CONSTANT; } |
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[9806e76] | 83 | <BOOLEAN_S,INTEGER_S,FLOAT_S,URN_S,STRING_S,TIME_S>[?] { |
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| 84 | yylval.string=strdup(yytext+1); |
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| 85 | if(debug) fprintf(yyout," QMARK "); |
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| 86 | return QMARK; } |
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[da5afdf] | 87 | <BOOLEAN_S,INTEGER_S,FLOAT_S,URN_S,STRING_S,TIME_S>\[ { |
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| 88 | if(debug) fprintf(yyout," LSQUARE "); |
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| 89 | return LSQUARE; } |
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| 90 | <BOOLEAN_S,INTEGER_S,FLOAT_S,URN_S,STRING_S,TIME_S>\] { |
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| 91 | if(debug) fprintf(yyout," RSQUARE "); |
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| 92 | return RSQUARE; } |
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| 93 | <BOOLEAN_S,INTEGER_S,FLOAT_S,URN_S,STRING_S,TIME_S>\: { |
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| 94 | if(debug) fprintf(yyout," COLON "); |
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| 95 | return COLON; } |
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| 96 | float { yylval.string =strdup(yytext); |
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| 97 | if(debug) fprintf(yyout," OTYPE(FLOAT) "); |
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| 98 | return OTYPE; } |
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[b5a3da4] | 99 | <FLOAT_S>-{DIGIT}+"."{DIGIT}+ | |
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| 100 | <FLOAT_S>{DIGIT}+"."{DIGIT}+ | |
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| 101 | <FLOAT_S>{DIGIT}+ | |
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| 102 | <FLOAT_S>-{DIGIT}+ { |
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[da5afdf] | 103 | yylval.string=strdup(yytext); |
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| 104 | if(debug) fprintf(yyout," OTYPE_CONSTANT(FLOAT) "); |
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| 105 | return OTYPE_CONSTANT; } |
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| 106 | time { yylval.string=strdup(yytext); |
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| 107 | if(debug) fprintf(yyout," OTYPE(TIME) "); |
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| 108 | return OTYPE; } |
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| 109 | <TIME_S>{DIGIT}{DIGIT}*"T"{DIGIT}* { |
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| 110 | yylval.string=strdup(yytext); |
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| 111 | if(debug) fprintf(yyout," OTYPE_CONSTANT(TIME) "); |
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| 112 | return OTYPE_CONSTANT; } |
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| 113 | urn { yylval.string=strdup(yytext); |
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| 114 | if(debug) fprintf(yyout," OTYPE(URN) "); |
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| 115 | return OTYPE; } |
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| 116 | <URN_S>[']([^']|\\')*['] | |
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| 117 | <URN_S>["]([^"]|\")*["] { |
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| 118 | yylval.string=strdup(yytext); |
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| 119 | if(debug) fprintf(yyout," OTYPE_CONSTANT(URN)(%s) ",yylval.string); |
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| 120 | return OTYPE_CONSTANT; } |
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| 121 | string { yylval.string=strdup(yytext); |
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| 122 | if(debug) fprintf(yyout," OTYPE(STRING) "); |
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| 123 | return OTYPE; } |
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| 124 | <STRING_S>[']([^']|\\')*['] | |
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| 125 | <STRING_S>["]([^"]|\")*["] { |
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| 126 | yylval.string=strdup(yytext); |
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| 127 | if(debug) fprintf(yyout," OTYPE_CONSTANT(STRING)(%s) ", yylval.string); |
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| 128 | return OTYPE_CONSTANT; } |
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| 129 | <RANGE_S>\[ { |
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| 130 | if(debug) fprintf(yyout," LSQUARE "); |
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| 131 | return LSQUARE; } |
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| 132 | <RANGE_S>\] { |
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| 133 | if(debug) fprintf(yyout," RSQUARE "); |
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| 134 | return RSQUARE; } |
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| 135 | <RANGE_S>\.\. { |
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| 136 | if(debug) fprintf(yyout," DOTDOT "); |
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| 137 | return DOTDOT; } |
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[d5bbd3e] | 138 | <RANGE_S>, { |
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| 139 | if(debug) fprintf(yyout," COMMA "); |
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| 140 | return COMMA; } |
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[4b8e1c9] | 141 | <RANGE_S>true|false { |
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| 142 | yylval.string=strdup(yytext); |
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| 143 | if(debug) fprintf(yyout," VALUE(BOOLEAN)(%s) ", yylval.string); |
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| 144 | return VALUE; } |
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[d5bbd3e] | 145 | <RANGE_S>[']([^']|\\')*['] | |
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| 146 | <RANGE_S>["]([^"]|\")*["] { |
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[c586a3c] | 147 | yylval.string=strdup(yytext); |
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| 148 | if(debug) fprintf(yyout," VALUE(STRING)(%s) ", yylval.string); |
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| 149 | return VALUE; } |
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[b5a3da4] | 150 | <RANGE_S>{DIGIT}+ | |
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| 151 | <RANGE_S>-{DIGIT}+ | |
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[c586a3c] | 152 | <RANGE_S>-{DIGIT}.{DIGIT}+ | |
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| 153 | <RANGE_S>{DIGIT}.{DIGIT}+ | |
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[b5a3da4] | 154 | <RANGE_S>{DIGIT}+T{DIGIT}+ { |
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[da5afdf] | 155 | yylval.string=strdup(yytext); |
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| 156 | if(debug) fprintf(yyout," VALUE(%s) ",yylval.string); |
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| 157 | return VALUE; } |
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[efacf92] | 158 | [a-zA-Z0-9][\-_a-zA-Z0-9]* { |
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[da5afdf] | 159 | yylval.string=strdup(yytext); |
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| 160 | if(debug) fprintf(yyout," IDEN(%s) ", yylval.string); |
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| 161 | return IDEN; } |
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| 162 | \<- { if(debug) fprintf(yyout," DERIVE "); |
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| 163 | return DERIVE; } |
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| 164 | & { if(debug) fprintf(yyout, " AND " ); |
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| 165 | return AND; } |
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| 166 | , { if(debug) fprintf(yyout, " COMMA "); |
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| 167 | return COMMA; } |
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| 168 | \( { if(debug) fprintf(yyout, " LPAREN "); |
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| 169 | return LPAREN; } |
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| 170 | \) { if(debug) fprintf(yyout, " RPAREN "); |
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| 171 | return RPAREN; } |
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| 172 | \[ { if(debug) fprintf(yyout, " LSQUARE "); |
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| 173 | return LSQUARE; } |
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| 174 | \] { if(debug) fprintf(yyout, " RSQUARE "); |
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| 175 | return RSQUARE; } |
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| 176 | \: { if(debug) fprintf(yyout, " COLON "); |
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| 177 | return COLON; } |
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| 178 | \? { if(debug) fprintf(yyout, " QMARK "); |
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| 179 | return QMARK; } |
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| 180 | \n { /* ignore end-of-line */; } |
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| 181 | [ \t]+ { /* ignore whitespace */; } |
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| 182 | %% |
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| 183 | |
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[718ad924] | 184 | void abac_reset_yyfptr(char *str) { |
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| 185 | yyfptr=str; |
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[da5afdf] | 186 | yyfptr_encoded=abac_encode_string(str); |
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[718ad924] | 187 | } |
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| 188 | |
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| 189 | char* abac_get_yyfptr() { |
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| 190 | return yyfptr; |
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| 191 | } |
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| 192 | |
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[da5afdf] | 193 | char *abac_get_yyfptr_encoded() { |
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| 194 | return yyfptr_encoded; |
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| 195 | } |
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| 196 | |
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[718ad924] | 197 | /* if using external file input, output */ |
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| 198 | void abac_reset_yyin(FILE *new_yyin) { |
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| 199 | yyin=new_yyin; |
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| 200 | } |
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| 201 | |
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| 202 | void abac_reset_yyout(FILE *new_yyout) { |
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| 203 | if(yyout) { |
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| 204 | fflush(yyout); |
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| 205 | fclose(yyout); |
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| 206 | } |
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| 207 | yyout=new_yyout; |
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| 208 | } |
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| 209 | |
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| 210 | void abac_flush_yyout() { |
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| 211 | if(yyout) |
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| 212 | fflush(yyout); |
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| 213 | } |
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| 214 | |
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| 215 | FILE *abac_get_yyin() { |
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| 216 | if(yyin) return yyin; |
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| 217 | else return stdin; |
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| 218 | } |
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| 219 | FILE *abac_get_yyout() { |
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| 220 | if(yyout) return yyout; |
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| 221 | else return stdout; |
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| 222 | } |
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| 223 | |
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[b5a3da4] | 224 | void abac_push_keyid_yystate() |
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[da5afdf] | 225 | { |
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| 226 | if(debug) fprintf(yyout, "\n push keyid state\n"); |
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| 227 | yy_push_state(KEYID_S); |
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| 228 | } |
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[718ad924] | 229 | |
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[b5a3da4] | 230 | void abac_push_range_yystate() |
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[da5afdf] | 231 | { |
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| 232 | if(debug) fprintf(yyout, "\n push range state\n"); |
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| 233 | yy_push_state(RANGE_S); |
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| 234 | } |
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| 235 | |
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[b5a3da4] | 236 | void abac_push_yystate(char *str) |
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[da5afdf] | 237 | { |
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| 238 | if(strcmp(str,"boolean")==0) { |
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| 239 | if(debug) fprintf(yyout, "\n push boolean state\n"); |
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| 240 | yy_push_state(BOOLEAN_S); |
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| 241 | return; |
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| 242 | } |
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| 243 | if(strcmp(str,"integer")==0) { |
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| 244 | if(debug) fprintf(yyout, "\n push integer state\n"); |
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| 245 | yy_push_state(INTEGER_S); |
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| 246 | return; |
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| 247 | } |
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| 248 | if(strcmp(str,"float")==0) { |
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| 249 | if(debug) fprintf(yyout, "\n push float state\n"); |
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| 250 | yy_push_state(FLOAT_S); |
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| 251 | return; |
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| 252 | } |
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| 253 | if(strcmp(str,"time")==0) { |
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| 254 | if(debug) fprintf(yyout, "\n push time state\n"); |
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| 255 | yy_push_state(TIME_S); |
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| 256 | return; |
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| 257 | } |
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| 258 | if(strcmp(str,"urn")==0) { |
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| 259 | if(debug) fprintf(yyout, "\n push urn state\n"); |
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| 260 | yy_push_state(URN_S); |
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| 261 | return; |
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| 262 | } |
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| 263 | if(strcmp(str,"string")==0) { |
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| 264 | if(debug) fprintf(yyout, "\n push string state\n"); |
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| 265 | yy_push_state(STRING_S); |
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| 266 | return; |
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| 267 | } |
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| 268 | |
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| 269 | if(debug) fprintf(yyout, "eek.. lost in push_state\n"); |
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| 270 | } |
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| 271 | |
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[b5a3da4] | 272 | void abac_pop_yystate() |
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[da5afdf] | 273 | { |
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| 274 | if(debug) fprintf(yyout, " pop a state\n"); |
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| 275 | yy_pop_state(); |
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| 276 | } |
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