Add comments and move a few declaration blocks to help readability.
No functional changes this time!
This commit is contained in:
Thomas G. Lockhart
parent
b12ba5f695
commit
361f9e7f8d
@ -1,7 +1,7 @@
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/* A lexical scanner generated by flex */
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/* Scanner skeleton version:
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* $Header: /cvsroot/pgsql/src/backend/parser/Attic/scan.c,v 1.3 1997/11/26 01:11:38 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/parser/Attic/scan.c,v 1.4 1997/11/30 23:05:39 thomas Exp $
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*/
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#define FLEX_SCANNER
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@ -288,20 +288,20 @@ static void yy_fatal_error YY_PROTO(( yyconst char msg[] ));
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#define YY_END_OF_BUFFER 41
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static yyconst short int yy_acclist[163] =
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{ 0,
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10, 10, 6, 6, 24, 24, 9, 9, 18, 18,
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25, 25, 41, 39, 40, 38, 39, 40, 38, 40,
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10, 10, 6, 6, 24, 24, 9, 9, 25, 25,
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18, 18, 41, 39, 40, 38, 39, 40, 38, 40,
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31, 39, 40, 22, 39, 40, 29, 31, 39, 40,
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15, 39, 40, 29, 39, 40, 29, 31, 39, 40,
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29, 31, 39, 40, 29, 31, 39, 40, 35, 39,
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40,16417, 29, 31, 39, 40, 37, 39, 40, 37,
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39, 40, 37, 39, 40, 10, 40, 8, 40, 3,
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6, 40, 3, 6, 40, 3, 40, 6, 40, 24,
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40, 23, 40, 9, 40, 14, 40, 18, 40, 16,
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40, 40, 40, 25, 40, 26, 40, 31, 31, 31,
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40, 23, 40, 9, 40, 14, 40, 40, 25, 40,
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26, 40, 18, 40, 16, 40, 40, 31, 31, 31,
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32, 31, 31, 35,16417, 4, 31, 31, 27, 31,
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37, 7, 13, 10, 6, 6, 5, 24, 9, 18,
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17, 20, 19, 20, 25, 30, 28, 30, 28, 30,
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37, 7, 13, 10, 6, 6, 5, 24, 9, 25,
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18, 17, 20, 19, 20, 30, 28, 30, 28, 30,
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32, 28, 1, 31, 31, 28, 30, 4, 31, 4,
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31, 4, 31, 8225, 36,16418, 12, 5, 11, 21,
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30, 2, 4, 31, 30, 2, 2, 2, 8226, 36,
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@ -314,11 +314,11 @@ static yyconst short int yy_accept[125] =
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9, 10, 11, 12, 13, 14, 16, 19, 21, 24,
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27, 31, 34, 37, 41, 45, 49, 53, 57, 60,
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63, 66, 68, 70, 73, 76, 78, 80, 82, 84,
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86, 88, 90, 92, 93, 94, 96, 98, 99, 100,
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86, 88, 89, 91, 93, 95, 97, 98, 99, 100,
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101, 102, 102, 103, 104, 106, 108, 109, 109, 109,
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109, 111, 112, 113, 114, 115, 115, 115, 116, 117,
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117, 117, 118, 119, 120, 120, 120, 121, 121, 121,
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122, 123, 125, 126, 127, 129, 132, 133, 133, 134,
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117, 117, 118, 119, 120, 120, 120, 121, 122, 122,
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122, 123, 124, 126, 127, 129, 132, 133, 133, 134,
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135, 136, 138, 138, 140, 142, 144, 145, 147, 147,
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147, 148, 149, 149, 149, 150, 150, 150, 151, 152,
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@ -367,22 +367,22 @@ static yyconst int yy_meta[22] =
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static yyconst short int yy_base[142] =
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{ 0,
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0, 0, 323, 311, 18, 31, 304, 303, 232, 224,
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18, 29, 46, 49, 221, 401, 401, 401, 204, 401,
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12, 401, 196, 189, 42, 50, 62, 43, 0, 186,
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164, 0, 64, 0, 73, 59, 0, 0, 401, 0,
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67, 0, 78, 154, 401, 88, 401, 144, 81, 18,
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135, 31, 129, 95, 0, 113, 106, 128, 0, 120,
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110, 0, 401, 401, 0, 130, 133, 0, 0, 62,
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85, 135, 0, 0, 139, 143, 0, 145, 149, 401,
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401, 401, 151, 401, 401, 73, 401, 153, 401, 166,
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113, 0, 69, 179, 49, 146, 401, 194, 171, 184,
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0, 0, 355, 344, 18, 31, 334, 328, 325, 318,
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46, 48, 18, 31, 313, 396, 396, 396, 293, 396,
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12, 396, 292, 203, 42, 49, 61, 21, 0, 199,
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196, 0, 52, 0, 72, 52, 0, 0, 396, 0,
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64, 396, 66, 396, 0, 77, 192, 181, 78, 31,
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169, 79, 165, 93, 0, 111, 104, 126, 0, 156,
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135, 0, 396, 396, 0, 68, 128, 0, 0, 110,
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129, 130, 0, 0, 138, 140, 142, 0, 146, 148,
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396, 396, 396, 396, 396, 111, 396, 152, 396, 165,
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122, 0, 77, 178, 64, 140, 396, 193, 170, 183,
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401, 196, 199, 207, 401, 209, 215, 401, 0, 171,
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201, 46, 217, 0, 213, 223, 227, 231, 401, 24,
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221, 235, 401, 240, 251, 262, 273, 284, 295, 304,
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303, 313, 324, 333, 340, 351, 362, 372, 383, 388,
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391
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396, 157, 195, 198, 396, 206, 208, 396, 0, 144,
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214, 65, 216, 0, 210, 220, 223, 228, 396, 16,
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214, 232, 396, 235, 246, 257, 268, 279, 290, 299,
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298, 308, 319, 328, 335, 346, 357, 367, 378, 383,
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386
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} ;
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static yyconst short int yy_def[142] =
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@ -391,10 +391,10 @@ static yyconst short int yy_def[142] =
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128, 128, 129, 129, 123, 123, 123, 123, 130, 123,
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130, 123, 123, 130, 130, 130, 123, 130, 131, 131,
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131, 132, 123, 133, 133, 134, 35, 135, 123, 136,
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123, 137, 123, 138, 123, 123, 123, 130, 130, 49,
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123, 123, 123, 123, 137, 123, 138, 130, 130, 49,
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123, 123, 50, 123, 27, 139, 54, 123, 140, 123,
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130, 131, 123, 123, 132, 123, 123, 133, 35, 134,
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134, 134, 135, 136, 123, 123, 137, 123, 123, 123,
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134, 134, 135, 136, 123, 123, 123, 137, 123, 123,
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123, 123, 123, 123, 123, 123, 123, 54, 123, 88,
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90, 88, 139, 139, 94, 94, 123, 123, 123, 123,
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@ -405,106 +405,104 @@ static yyconst short int yy_def[142] =
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123
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} ;
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static yyconst short int yy_nxt[423] =
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static yyconst short int yy_nxt[418] =
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{ 0,
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16, 17, 18, 19, 20, 21, 22, 23, 24, 24,
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25, 23, 26, 27, 28, 24, 29, 30, 29, 31,
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16, 35, 50, 35, 43, 51, 36, 35, 35, 85,
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37, 86, 35, 35, 35, 43, 35, 121, 44, 36,
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35, 35, 87, 37, 87, 35, 35, 46, 46, 44,
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46, 46, 54, 53, 110, 55, 47, 61, 56, 47,
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53, 111, 57, 58, 58, 66, 67, 70, 75, 76,
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70, 72, 59, 60, 72, 55, 69, 110, 69, 78,
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79, 70, 69, 69, 80, 69, 51, 69, 69, 83,
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83, 49, 84, 70, 84, 88, 88, 89, 90, 88,
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16, 35, 50, 35, 46, 51, 36, 35, 35, 121,
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37, 53, 35, 35, 35, 61, 35, 46, 47, 36,
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35, 35, 85, 37, 86, 35, 35, 43, 43, 43,
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43, 47, 54, 66, 67, 55, 44, 56, 44, 53,
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70, 57, 58, 58, 72, 75, 76, 77, 77, 66,
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67, 59, 60, 110, 55, 69, 111, 69, 79, 80,
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70, 69, 69, 81, 69, 110, 69, 69, 49, 84,
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87, 84, 87, 88, 88, 89, 90, 88, 90, 88,
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90, 88, 88, 90, 90, 91, 92, 90, 92, 90,
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90, 88, 88, 88, 88, 88, 94, 88, 94, 88,
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49, 95, 94, 96, 109, 94, 109, 94, 94, 58,
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58, 66, 67, 98, 99, 100, 102, 102, 59, 101,
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75, 76, 85, 70, 103, 104, 78, 79, 51, 105,
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106, 107, 83, 83, 49, 108, 88, 112, 88, 112,
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82, 88, 88, 88, 88, 88, 88, 88, 88, 90,
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64, 90, 99, 100, 90, 90, 91, 101, 90, 110,
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90, 90, 94, 116, 94, 99, 100, 95, 94, 96,
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101, 94, 63, 94, 94, 113, 113, 102, 102, 53,
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88, 90, 90, 91, 92, 90, 92, 90, 90, 88,
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88, 88, 88, 88, 94, 88, 94, 88, 70, 95,
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94, 96, 72, 94, 51, 94, 94, 58, 58, 99,
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100, 102, 102, 109, 101, 109, 59, 70, 70, 75,
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76, 103, 104, 77, 77, 49, 105, 79, 80, 106,
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107, 112, 110, 112, 108, 88, 116, 88, 102, 102,
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88, 88, 88, 88, 88, 88, 88, 88, 90, 98,
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90, 99, 100, 90, 90, 91, 101, 90, 85, 90,
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90, 94, 51, 94, 99, 100, 95, 94, 96, 101,
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94, 49, 94, 94, 113, 113, 103, 104, 83, 103,
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103, 104, 117, 118, 114, 105, 52, 98, 103, 104,
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106, 107, 115, 105, 49, 108, 106, 107, 113, 113,
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123, 108, 120, 120, 117, 118, 121, 114, 117, 118,
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41, 110, 122, 118, 121, 110, 122, 118, 41, 123,
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32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
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32, 34, 34, 34, 34, 34, 34, 34, 34, 34,
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34, 34, 38, 38, 38, 38, 38, 38, 38, 38,
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38, 38, 38, 40, 40, 40, 40, 40, 40, 40,
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40, 40, 40, 40, 42, 42, 42, 42, 42, 42,
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42, 42, 42, 42, 42, 45, 45, 45, 45, 45,
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104, 105, 64, 114, 105, 63, 98, 106, 107, 106,
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107, 115, 108, 53, 108, 117, 118, 113, 113, 120,
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120, 117, 118, 121, 117, 118, 114, 121, 110, 122,
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118, 110, 123, 122, 118, 32, 32, 32, 32, 32,
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32, 32, 32, 32, 32, 32, 34, 34, 34, 34,
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34, 34, 34, 34, 34, 34, 34, 38, 38, 38,
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38, 38, 38, 38, 38, 38, 38, 38, 40, 40,
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40, 40, 40, 40, 40, 40, 40, 40, 40, 42,
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42, 42, 42, 42, 42, 42, 42, 42, 42, 42,
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45, 45, 45, 45, 45, 45, 45, 45, 45, 45,
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45, 45, 45, 45, 45, 45, 48, 39, 39, 48,
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48, 62, 62, 65, 65, 65, 65, 33, 65, 65,
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65, 65, 65, 65, 68, 68, 68, 68, 68, 33,
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68, 68, 68, 68, 68, 71, 123, 123, 71, 71,
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73, 73, 73, 123, 73, 73, 73, 73, 73, 73,
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73, 74, 74, 74, 74, 123, 74, 74, 74, 74,
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74, 74, 77, 77, 77, 77, 123, 77, 77, 77,
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77, 77, 81, 81, 81, 81, 81, 81, 81, 81,
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81, 81, 81, 93, 123, 93, 93, 93, 93, 93,
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93, 93, 93, 93, 97, 97, 97, 119, 119, 119,
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45, 48, 52, 49, 48, 48, 62, 62, 65, 65,
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65, 65, 123, 65, 65, 65, 65, 65, 65, 68,
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68, 68, 68, 68, 41, 68, 68, 68, 68, 68,
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71, 41, 39, 71, 71, 73, 73, 73, 39, 73,
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73, 73, 73, 73, 73, 73, 74, 74, 74, 74,
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33, 74, 74, 74, 74, 74, 74, 78, 78, 78,
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78, 33, 78, 78, 78, 78, 78, 82, 82, 82,
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82, 82, 82, 82, 82, 82, 82, 82, 93, 123,
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93, 93, 93, 93, 93, 93, 93, 93, 93, 97,
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97, 97, 119, 119, 119, 15, 123, 123, 123, 123,
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15, 123, 123, 123, 123, 123, 123, 123, 123, 123,
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123, 123, 123, 123, 123, 123, 123, 123, 123, 123,
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123, 123
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123, 123, 123, 123, 123, 123, 123
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} ;
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static yyconst short int yy_chk[423] =
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static yyconst short int yy_chk[418] =
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{ 0,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 5, 21, 5, 11, 21, 5, 5, 5, 50,
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5, 50, 5, 5, 6, 12, 6, 120, 11, 6,
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6, 6, 52, 6, 52, 6, 6, 13, 13, 12,
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14, 14, 25, 28, 112, 25, 13, 28, 26, 14,
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26, 95, 26, 27, 27, 33, 33, 36, 41, 41,
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70, 36, 27, 27, 70, 27, 35, 93, 35, 43,
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43, 35, 35, 35, 43, 35, 86, 35, 35, 46,
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46, 49, 49, 71, 49, 54, 54, 54, 54, 54,
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1, 5, 21, 5, 13, 21, 5, 5, 5, 120,
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5, 28, 5, 5, 6, 28, 6, 14, 13, 6,
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6, 6, 50, 6, 50, 6, 6, 11, 11, 12,
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12, 14, 25, 33, 33, 25, 11, 26, 12, 26,
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36, 26, 27, 27, 36, 41, 41, 43, 43, 66,
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66, 27, 27, 112, 27, 35, 95, 35, 46, 46,
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35, 35, 35, 46, 35, 93, 35, 35, 49, 49,
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52, 49, 52, 54, 54, 54, 54, 54, 54, 54,
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54, 54, 54, 54, 54, 54, 54, 54, 54, 54,
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54, 54, 54, 54, 54, 54, 56, 57, 56, 57,
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61, 56, 56, 56, 91, 56, 91, 56, 56, 58,
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58, 66, 66, 60, 67, 67, 72, 72, 58, 67,
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75, 75, 53, 72, 76, 76, 78, 78, 51, 76,
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79, 79, 83, 83, 48, 79, 88, 96, 88, 96,
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44, 88, 88, 88, 88, 88, 88, 88, 88, 90,
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31, 90, 99, 99, 90, 90, 90, 99, 90, 110,
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90, 90, 94, 110, 94, 100, 100, 94, 94, 94,
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100, 94, 30, 94, 94, 98, 98, 102, 102, 24,
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54, 54, 54, 54, 56, 57, 56, 57, 70, 56,
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56, 56, 70, 56, 86, 56, 56, 58, 58, 67,
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67, 72, 72, 91, 67, 91, 58, 71, 72, 75,
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75, 76, 76, 77, 77, 61, 76, 79, 79, 80,
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80, 96, 110, 96, 80, 88, 110, 88, 102, 102,
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88, 88, 88, 88, 88, 88, 88, 88, 90, 60,
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90, 99, 99, 90, 90, 90, 99, 90, 53, 90,
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90, 94, 51, 94, 100, 100, 94, 94, 94, 100,
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94, 48, 94, 94, 98, 98, 103, 103, 47, 104,
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103, 103, 111, 111, 98, 103, 23, 98, 104, 104,
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106, 106, 98, 104, 19, 106, 107, 107, 113, 113,
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15, 107, 115, 115, 116, 116, 115, 113, 117, 117,
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10, 116, 118, 118, 121, 117, 122, 122, 9, 121,
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124, 124, 124, 124, 124, 124, 124, 124, 124, 124,
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124, 125, 125, 125, 125, 125, 125, 125, 125, 125,
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125, 125, 126, 126, 126, 126, 126, 126, 126, 126,
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126, 126, 126, 127, 127, 127, 127, 127, 127, 127,
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127, 127, 127, 127, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 129, 129, 129, 129, 129,
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104, 103, 31, 98, 104, 30, 98, 106, 106, 107,
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107, 98, 106, 24, 107, 111, 111, 113, 113, 115,
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115, 116, 116, 115, 117, 117, 113, 121, 116, 118,
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118, 117, 121, 122, 122, 124, 124, 124, 124, 124,
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124, 124, 124, 124, 124, 124, 125, 125, 125, 125,
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125, 125, 125, 125, 125, 125, 125, 126, 126, 126,
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126, 126, 126, 126, 126, 126, 126, 126, 127, 127,
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127, 127, 127, 127, 127, 127, 127, 127, 127, 128,
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128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
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129, 129, 129, 129, 129, 129, 129, 129, 129, 129,
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129, 129, 129, 129, 129, 129, 130, 8, 7, 130,
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130, 131, 131, 132, 132, 132, 132, 4, 132, 132,
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132, 132, 132, 132, 133, 133, 133, 133, 133, 3,
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133, 133, 133, 133, 133, 134, 0, 0, 134, 134,
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135, 135, 135, 0, 135, 135, 135, 135, 135, 135,
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135, 136, 136, 136, 136, 0, 136, 136, 136, 136,
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136, 136, 137, 137, 137, 137, 0, 137, 137, 137,
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137, 137, 138, 138, 138, 138, 138, 138, 138, 138,
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138, 138, 138, 139, 0, 139, 139, 139, 139, 139,
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139, 139, 139, 139, 140, 140, 140, 141, 141, 141,
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129, 130, 23, 19, 130, 130, 131, 131, 132, 132,
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132, 132, 15, 132, 132, 132, 132, 132, 132, 133,
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133, 133, 133, 133, 10, 133, 133, 133, 133, 133,
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134, 9, 8, 134, 134, 135, 135, 135, 7, 135,
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135, 135, 135, 135, 135, 135, 136, 136, 136, 136,
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4, 136, 136, 136, 136, 136, 136, 137, 137, 137,
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137, 3, 137, 137, 137, 137, 137, 138, 138, 138,
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138, 138, 138, 138, 138, 138, 138, 138, 139, 0,
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139, 139, 139, 139, 139, 139, 139, 139, 139, 140,
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140, 140, 141, 141, 141, 123, 123, 123, 123, 123,
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123, 123, 123, 123, 123, 123, 123, 123, 123, 123,
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123, 123, 123, 123, 123, 123, 123, 123, 123, 123,
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123, 123
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123, 123, 123, 123, 123, 123, 123
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} ;
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static yy_state_type yy_state_buf[YY_BUF_SIZE + 2], *yy_state_ptr;
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@ -541,7 +539,7 @@ char *yytext;
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/parser/Attic/scan.c,v 1.3 1997/11/26 01:11:38 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/parser/Attic/scan.c,v 1.4 1997/11/30 23:05:39 thomas Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -593,28 +591,28 @@ int llen;
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char literal[MAX_PARSE_BUFFER];
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/* OK, here is a short description of lex/flex rules behavior.
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* The longest pattern which matches an input string is always chosen.
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* For equal-length patterns, the first occurring in the rules list is chosen.
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* INITIAL is the starting condition, to which all non-conditional rules apply.
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* When in an exclusive condition, only those rules defined for that condition apply.
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*
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* Exclusive states change parsing rules while the state is active.
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* There are exclusive states for quoted strings, extended comments,
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* and to eliminate parsing troubles for numeric strings.
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* Exclusive states:
|
||||
* <xb> binary numeric string - thomas 1997-11-16
|
||||
* <xh> hexadecimal numeric string - thomas 1997-11-16
|
||||
* <xc> extended C-style comments - tgl 1997-07-12
|
||||
* <xq> quoted strings - tgl 1997-07-30
|
||||
* <xm> numeric strings with embedded minus sign - tgl 1997-09-05
|
||||
* <xd> delimited identifiers (double-quoted identifiers) - tgl 1997-10-27
|
||||
*
|
||||
* The "extended comment" syntax closely resembles allowable operator syntax.
|
||||
* So, when in condition <xc>, only strings which would terminate the
|
||||
* "extended comment" trigger any action other than "ignore".
|
||||
* Be sure to match _any_ candidate comment, including those with appended
|
||||
* operator-like symbols. - thomas 1997-07-14
|
||||
*/
|
||||
* The longest pattern which matches an input string is always chosen.
|
||||
* For equal-length patterns, the first occurring in the rules list is chosen.
|
||||
* INITIAL is the starting condition, to which all non-conditional rules apply.
|
||||
* When in an exclusive condition, only those rules defined for that condition apply.
|
||||
*
|
||||
* Exclusive states change parsing rules while the state is active.
|
||||
* There are exclusive states for quoted strings, extended comments,
|
||||
* and to eliminate parsing troubles for numeric strings.
|
||||
* Exclusive states:
|
||||
* <xb> binary numeric string - thomas 1997-11-16
|
||||
* <xc> extended C-style comments - tgl 1997-07-12
|
||||
* <xd> delimited identifiers (double-quoted identifiers) - tgl 1997-10-27
|
||||
* <xh> hexadecimal numeric string - thomas 1997-11-16
|
||||
* <xm> numeric strings with embedded minus sign - tgl 1997-09-05
|
||||
* <xq> quoted strings - tgl 1997-07-30
|
||||
*
|
||||
* The "extended comment" syntax closely resembles allowable operator syntax.
|
||||
* So, when in condition <xc>, only strings which would terminate the
|
||||
* "extended comment" trigger any action other than "ignore".
|
||||
* Be sure to match _any_ candidate comment, including those with appended
|
||||
* operator-like symbols. - thomas 1997-07-14
|
||||
*/
|
||||
#define xb 1
|
||||
|
||||
#define xc 2
|
||||
@ -623,10 +621,24 @@ char literal[MAX_PARSE_BUFFER];
|
||||
|
||||
#define xh 4
|
||||
|
||||
#define xq 5
|
||||
#define xm 5
|
||||
|
||||
#define xm 6
|
||||
#define xq 6
|
||||
|
||||
/* Binary number
|
||||
*/
|
||||
/* Hexadecimal number
|
||||
*/
|
||||
/* Extended quote
|
||||
* xqdouble implements SQL92 embedded quote
|
||||
* xqcat allows strings to cross input lines
|
||||
*/
|
||||
/* Delimited quote
|
||||
* Allows embedded spaces and other special characters into identifiers.
|
||||
*/
|
||||
/* Comments
|
||||
* Ignored by the scanner and parser.
|
||||
*/
|
||||
/* DO NOT PUT ANY COMMENTS IN THE FOLLOWING SECTION.
|
||||
* AT&T lex does not properly handle C-style comments in this second lex block.
|
||||
* So, put comments here. tgl - 1997-09-08
|
||||
@ -639,7 +651,7 @@ char literal[MAX_PARSE_BUFFER];
|
||||
* Other embedded escaped characters are matched explicitly and the leading
|
||||
* backslash is dropped from the string. - thomas 1997-09-24
|
||||
*/
|
||||
#line 643 "lex.yy.c"
|
||||
#line 655 "lex.yy.c"
|
||||
|
||||
/* Macros after this point can all be overridden by user definitions in
|
||||
* section 1.
|
||||
@ -790,9 +802,9 @@ YY_DECL
|
||||
register char *yy_cp, *yy_bp;
|
||||
register int yy_act;
|
||||
|
||||
#line 164 "scan.l"
|
||||
#line 178 "scan.l"
|
||||
|
||||
#line 796 "lex.yy.c"
|
||||
#line 808 "lex.yy.c"
|
||||
|
||||
if ( yy_init )
|
||||
{
|
||||
@ -847,7 +859,7 @@ yy_match:
|
||||
*yy_state_ptr++ = yy_current_state;
|
||||
++yy_cp;
|
||||
}
|
||||
while ( yy_base[yy_current_state] != 401 );
|
||||
while ( yy_base[yy_current_state] != 396 );
|
||||
|
||||
yy_find_action:
|
||||
yy_current_state = *--yy_state_ptr;
|
||||
@ -898,34 +910,34 @@ do_action: /* This label is used only to access EOF actions. */
|
||||
{ /* beginning of action switch */
|
||||
case 1:
|
||||
YY_RULE_SETUP
|
||||
#line 165 "scan.l"
|
||||
#line 179 "scan.l"
|
||||
{ /* ignore */ }
|
||||
YY_BREAK
|
||||
case 2:
|
||||
YY_RULE_SETUP
|
||||
#line 167 "scan.l"
|
||||
#line 181 "scan.l"
|
||||
{ /* ignore */ }
|
||||
YY_BREAK
|
||||
case 3:
|
||||
#line 170 "scan.l"
|
||||
#line 184 "scan.l"
|
||||
case 4:
|
||||
YY_RULE_SETUP
|
||||
#line 170 "scan.l"
|
||||
#line 184 "scan.l"
|
||||
{ BEGIN(xc); }
|
||||
YY_BREAK
|
||||
case 5:
|
||||
YY_RULE_SETUP
|
||||
#line 172 "scan.l"
|
||||
#line 186 "scan.l"
|
||||
{ BEGIN(INITIAL); }
|
||||
YY_BREAK
|
||||
case 6:
|
||||
YY_RULE_SETUP
|
||||
#line 174 "scan.l"
|
||||
#line 188 "scan.l"
|
||||
{ /* ignore */ }
|
||||
YY_BREAK
|
||||
case 7:
|
||||
YY_RULE_SETUP
|
||||
#line 176 "scan.l"
|
||||
#line 190 "scan.l"
|
||||
{
|
||||
BEGIN(xb);
|
||||
llen = 0;
|
||||
@ -934,7 +946,7 @@ YY_RULE_SETUP
|
||||
YY_BREAK
|
||||
case 8:
|
||||
YY_RULE_SETUP
|
||||
#line 181 "scan.l"
|
||||
#line 195 "scan.l"
|
||||
{
|
||||
char* endptr;
|
||||
|
||||
@ -947,10 +959,10 @@ YY_RULE_SETUP
|
||||
}
|
||||
YY_BREAK
|
||||
case 9:
|
||||
#line 192 "scan.l"
|
||||
#line 206 "scan.l"
|
||||
case 10:
|
||||
YY_RULE_SETUP
|
||||
#line 192 "scan.l"
|
||||
#line 206 "scan.l"
|
||||
{
|
||||
if ((llen+yyleng) > (MAX_PARSE_BUFFER - 1))
|
||||
elog(WARN,"quoted string parse buffer of %d chars exceeded",MAX_PARSE_BUFFER);
|
||||
@ -959,16 +971,16 @@ YY_RULE_SETUP
|
||||
}
|
||||
YY_BREAK
|
||||
case 11:
|
||||
#line 199 "scan.l"
|
||||
#line 213 "scan.l"
|
||||
case 12:
|
||||
YY_RULE_SETUP
|
||||
#line 199 "scan.l"
|
||||
#line 213 "scan.l"
|
||||
{
|
||||
}
|
||||
YY_BREAK
|
||||
case 13:
|
||||
YY_RULE_SETUP
|
||||
#line 202 "scan.l"
|
||||
#line 216 "scan.l"
|
||||
{
|
||||
BEGIN(xh);
|
||||
llen = 0;
|
||||
@ -977,7 +989,7 @@ YY_RULE_SETUP
|
||||
YY_BREAK
|
||||
case 14:
|
||||
YY_RULE_SETUP
|
||||
#line 207 "scan.l"
|
||||
#line 221 "scan.l"
|
||||
{
|
||||
char* endptr;
|
||||
|
||||
@ -991,7 +1003,7 @@ YY_RULE_SETUP
|
||||
YY_BREAK
|
||||
case 15:
|
||||
YY_RULE_SETUP
|
||||
#line 218 "scan.l"
|
||||
#line 232 "scan.l"
|
||||
{
|
||||
BEGIN(xq);
|
||||
llen = 0;
|
||||
@ -1000,7 +1012,7 @@ YY_RULE_SETUP
|
||||
YY_BREAK
|
||||
case 16:
|
||||
YY_RULE_SETUP
|
||||
#line 223 "scan.l"
|
||||
#line 237 "scan.l"
|
||||
{
|
||||
BEGIN(INITIAL);
|
||||
yylval.str = pstrdup(scanstr(literal));
|
||||
@ -1008,10 +1020,10 @@ YY_RULE_SETUP
|
||||
}
|
||||
YY_BREAK
|
||||
case 17:
|
||||
#line 229 "scan.l"
|
||||
#line 243 "scan.l"
|
||||
case 18:
|
||||
YY_RULE_SETUP
|
||||
#line 229 "scan.l"
|
||||
#line 243 "scan.l"
|
||||
{
|
||||
if ((llen+yyleng) > (MAX_PARSE_BUFFER - 1))
|
||||
elog(WARN,"quoted string parse buffer of %d chars exceeded",MAX_PARSE_BUFFER);
|
||||
@ -1021,7 +1033,7 @@ YY_RULE_SETUP
|
||||
YY_BREAK
|
||||
case 19:
|
||||
YY_RULE_SETUP
|
||||
#line 235 "scan.l"
|
||||
#line 249 "scan.l"
|
||||
{
|
||||
if ((llen+yyleng-1) > (MAX_PARSE_BUFFER - 1))
|
||||
elog(WARN,"quoted string parse buffer of %d chars exceeded",MAX_PARSE_BUFFER);
|
||||
@ -1032,7 +1044,7 @@ YY_RULE_SETUP
|
||||
YY_BREAK
|
||||
case 20:
|
||||
YY_RULE_SETUP
|
||||
#line 243 "scan.l"
|
||||
#line 257 "scan.l"
|
||||
{
|
||||
if ((llen+yyleng-1) > (MAX_PARSE_BUFFER - 1))
|
||||
elog(WARN,"quoted string parse buffer of %d chars exceeded",MAX_PARSE_BUFFER);
|
||||
@ -1042,13 +1054,13 @@ YY_RULE_SETUP
|
||||
YY_BREAK
|
||||
case 21:
|
||||
YY_RULE_SETUP
|
||||
#line 249 "scan.l"
|
||||
#line 263 "scan.l"
|
||||
{
|
||||
}
|
||||
YY_BREAK
|
||||
case 22:
|
||||
YY_RULE_SETUP
|
||||
#line 253 "scan.l"
|
||||
#line 267 "scan.l"
|
||||
{
|
||||
BEGIN(xd);
|
||||
llen = 0;
|
||||
@ -1057,7 +1069,7 @@ YY_RULE_SETUP
|
||||
YY_BREAK
|
||||
case 23:
|
||||
YY_RULE_SETUP
|
||||
#line 258 "scan.l"
|
||||
#line 272 "scan.l"
|
||||
{
|
||||
BEGIN(INITIAL);
|
||||
yylval.str = pstrdup(literal);
|
||||
@ -1066,7 +1078,7 @@ YY_RULE_SETUP
|
||||
YY_BREAK
|
||||
case 24:
|
||||
YY_RULE_SETUP
|
||||
#line 263 "scan.l"
|
||||
#line 277 "scan.l"
|
||||
{
|
||||
if ((llen+yyleng) > (MAX_PARSE_BUFFER - 1))
|
||||
elog(WARN,"quoted string parse buffer of %d chars exceeded",MAX_PARSE_BUFFER);
|
||||
@ -1076,12 +1088,12 @@ YY_RULE_SETUP
|
||||
YY_BREAK
|
||||
case 25:
|
||||
YY_RULE_SETUP
|
||||
#line 271 "scan.l"
|
||||
#line 285 "scan.l"
|
||||
{ /* ignore */ }
|
||||
YY_BREAK
|
||||
case 26:
|
||||
YY_RULE_SETUP
|
||||
#line 272 "scan.l"
|
||||
#line 286 "scan.l"
|
||||
{
|
||||
BEGIN(INITIAL);
|
||||
return (yytext[0]);
|
||||
@ -1089,7 +1101,7 @@ YY_RULE_SETUP
|
||||
YY_BREAK
|
||||
case 27:
|
||||
YY_RULE_SETUP
|
||||
#line 278 "scan.l"
|
||||
#line 292 "scan.l"
|
||||
{ return TYPECAST; }
|
||||
YY_BREAK
|
||||
case 28:
|
||||
@ -1097,14 +1109,14 @@ case 28:
|
||||
yy_c_buf_p = yy_cp = yy_bp + 1;
|
||||
YY_DO_BEFORE_ACTION; /* set up yytext again */
|
||||
YY_RULE_SETUP
|
||||
#line 280 "scan.l"
|
||||
#line 294 "scan.l"
|
||||
{
|
||||
return (yytext[0]);
|
||||
}
|
||||
YY_BREAK
|
||||
case 29:
|
||||
YY_RULE_SETUP
|
||||
#line 283 "scan.l"
|
||||
#line 297 "scan.l"
|
||||
{ return (yytext[0]); }
|
||||
YY_BREAK
|
||||
case 30:
|
||||
@ -1112,7 +1124,7 @@ case 30:
|
||||
yy_c_buf_p = yy_cp -= 2;
|
||||
YY_DO_BEFORE_ACTION; /* set up yytext again */
|
||||
YY_RULE_SETUP
|
||||
#line 284 "scan.l"
|
||||
#line 298 "scan.l"
|
||||
{
|
||||
yylval.str = pstrdup((char*)yytext);
|
||||
return (Op);
|
||||
@ -1120,7 +1132,7 @@ YY_RULE_SETUP
|
||||
YY_BREAK
|
||||
case 31:
|
||||
YY_RULE_SETUP
|
||||
#line 288 "scan.l"
|
||||
#line 302 "scan.l"
|
||||
{
|
||||
if (strcmp((char*)yytext,"!=") == 0)
|
||||
yylval.str = pstrdup("<>"); /* compatability */
|
||||
@ -1131,7 +1143,7 @@ YY_RULE_SETUP
|
||||
YY_BREAK
|
||||
case 32:
|
||||
YY_RULE_SETUP
|
||||
#line 295 "scan.l"
|
||||
#line 309 "scan.l"
|
||||
{
|
||||
yylval.ival = atoi((char*)&yytext[1]);
|
||||
return (PARAM);
|
||||
@ -1139,7 +1151,7 @@ YY_RULE_SETUP
|
||||
YY_BREAK
|
||||
case 33:
|
||||
YY_RULE_SETUP
|
||||
#line 300 "scan.l"
|
||||
#line 314 "scan.l"
|
||||
{
|
||||
char* endptr;
|
||||
|
||||
@ -1153,7 +1165,7 @@ YY_RULE_SETUP
|
||||
YY_BREAK
|
||||
case 34:
|
||||
YY_RULE_SETUP
|
||||
#line 310 "scan.l"
|
||||
#line 324 "scan.l"
|
||||
{
|
||||
char* endptr;
|
||||
|
||||
@ -1168,7 +1180,7 @@ YY_RULE_SETUP
|
||||
YY_BREAK
|
||||
case 35:
|
||||
YY_RULE_SETUP
|
||||
#line 321 "scan.l"
|
||||
#line 335 "scan.l"
|
||||
{
|
||||
char* endptr;
|
||||
|
||||
@ -1181,7 +1193,7 @@ YY_RULE_SETUP
|
||||
YY_BREAK
|
||||
case 36:
|
||||
YY_RULE_SETUP
|
||||
#line 330 "scan.l"
|
||||
#line 344 "scan.l"
|
||||
{
|
||||
char* endptr;
|
||||
|
||||
@ -1195,7 +1207,7 @@ YY_RULE_SETUP
|
||||
YY_BREAK
|
||||
case 37:
|
||||
YY_RULE_SETUP
|
||||
#line 340 "scan.l"
|
||||
#line 354 "scan.l"
|
||||
{
|
||||
int i;
|
||||
ScanKeyword *keyword;
|
||||
@ -1217,27 +1229,27 @@ YY_RULE_SETUP
|
||||
YY_BREAK
|
||||
case 38:
|
||||
YY_RULE_SETUP
|
||||
#line 358 "scan.l"
|
||||
#line 372 "scan.l"
|
||||
{ /* ignore */ }
|
||||
YY_BREAK
|
||||
case 39:
|
||||
YY_RULE_SETUP
|
||||
#line 360 "scan.l"
|
||||
#line 374 "scan.l"
|
||||
{ return (yytext[0]); }
|
||||
YY_BREAK
|
||||
case 40:
|
||||
YY_RULE_SETUP
|
||||
#line 362 "scan.l"
|
||||
#line 376 "scan.l"
|
||||
ECHO;
|
||||
YY_BREAK
|
||||
#line 1234 "lex.yy.c"
|
||||
#line 1246 "lex.yy.c"
|
||||
case YY_STATE_EOF(INITIAL):
|
||||
case YY_STATE_EOF(xb):
|
||||
case YY_STATE_EOF(xc):
|
||||
case YY_STATE_EOF(xd):
|
||||
case YY_STATE_EOF(xh):
|
||||
case YY_STATE_EOF(xq):
|
||||
case YY_STATE_EOF(xm):
|
||||
case YY_STATE_EOF(xq):
|
||||
yyterminate();
|
||||
|
||||
case YY_END_OF_BUFFER:
|
||||
@ -2116,7 +2128,7 @@ int main()
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
#line 362 "scan.l"
|
||||
#line 376 "scan.l"
|
||||
|
||||
|
||||
void yyerror(char message[])
|
||||
|
||||
@ -8,7 +8,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/backend/parser/scan.l,v 1.30 1997/11/20 23:22:25 momjian Exp $
|
||||
* $Header: /cvsroot/pgsql/src/backend/parser/scan.l,v 1.31 1997/11/30 23:05:36 thomas Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -60,37 +60,55 @@ int llen;
|
||||
char literal[MAX_PARSE_BUFFER];
|
||||
|
||||
%}
|
||||
/* OK, here is a short description of lex/flex rules behavior.
|
||||
* The longest pattern which matches an input string is always chosen.
|
||||
* For equal-length patterns, the first occurring in the rules list is chosen.
|
||||
* INITIAL is the starting condition, to which all non-conditional rules apply.
|
||||
* When in an exclusive condition, only those rules defined for that condition apply.
|
||||
*
|
||||
* Exclusive states change parsing rules while the state is active.
|
||||
* There are exclusive states for quoted strings, extended comments,
|
||||
* and to eliminate parsing troubles for numeric strings.
|
||||
* Exclusive states:
|
||||
* <xb> binary numeric string - thomas 1997-11-16
|
||||
* <xh> hexadecimal numeric string - thomas 1997-11-16
|
||||
* <xc> extended C-style comments - tgl 1997-07-12
|
||||
* <xq> quoted strings - tgl 1997-07-30
|
||||
* <xm> numeric strings with embedded minus sign - tgl 1997-09-05
|
||||
* <xd> delimited identifiers (double-quoted identifiers) - tgl 1997-10-27
|
||||
*
|
||||
* The "extended comment" syntax closely resembles allowable operator syntax.
|
||||
* So, when in condition <xc>, only strings which would terminate the
|
||||
* "extended comment" trigger any action other than "ignore".
|
||||
* Be sure to match _any_ candidate comment, including those with appended
|
||||
* operator-like symbols. - thomas 1997-07-14
|
||||
*/
|
||||
/* OK, here is a short description of lex/flex rules behavior.
|
||||
* The longest pattern which matches an input string is always chosen.
|
||||
* For equal-length patterns, the first occurring in the rules list is chosen.
|
||||
* INITIAL is the starting condition, to which all non-conditional rules apply.
|
||||
* When in an exclusive condition, only those rules defined for that condition apply.
|
||||
*
|
||||
* Exclusive states change parsing rules while the state is active.
|
||||
* There are exclusive states for quoted strings, extended comments,
|
||||
* and to eliminate parsing troubles for numeric strings.
|
||||
* Exclusive states:
|
||||
* <xb> binary numeric string - thomas 1997-11-16
|
||||
* <xc> extended C-style comments - tgl 1997-07-12
|
||||
* <xd> delimited identifiers (double-quoted identifiers) - tgl 1997-10-27
|
||||
* <xh> hexadecimal numeric string - thomas 1997-11-16
|
||||
* <xm> numeric strings with embedded minus sign - tgl 1997-09-05
|
||||
* <xq> quoted strings - tgl 1997-07-30
|
||||
*
|
||||
* The "extended comment" syntax closely resembles allowable operator syntax.
|
||||
* So, when in condition <xc>, only strings which would terminate the
|
||||
* "extended comment" trigger any action other than "ignore".
|
||||
* Be sure to match _any_ candidate comment, including those with appended
|
||||
* operator-like symbols. - thomas 1997-07-14
|
||||
*/
|
||||
|
||||
%x xb
|
||||
%x xc
|
||||
%x xd
|
||||
%x xh
|
||||
%x xq
|
||||
%x xm
|
||||
%x xq
|
||||
|
||||
/* Binary number
|
||||
*/
|
||||
xbstart [bB]{quote}
|
||||
xbstop {quote}
|
||||
xbinside [^']*
|
||||
xbcat {quote}{space}*\n{space}*{quote}
|
||||
|
||||
/* Hexadecimal number
|
||||
*/
|
||||
xhstart [xX]{quote}
|
||||
xhstop {quote}
|
||||
xhinside [^']*
|
||||
xhcat {quote}{space}*\n{space}*{quote}
|
||||
|
||||
/* Extended quote
|
||||
* xqdouble implements SQL92 embedded quote
|
||||
* xqcat allows strings to cross input lines
|
||||
*/
|
||||
quote '
|
||||
xqstart {quote}
|
||||
xqstop {quote}
|
||||
@ -100,21 +118,17 @@ xqembedded "\\'"
|
||||
xqliteral [\\](.|\n)
|
||||
xqcat {quote}{space}*\n{space}*{quote}
|
||||
|
||||
xbstart [bB]{quote}
|
||||
xbstop {quote}
|
||||
xbinside [^']*
|
||||
xbcat {quote}{space}*\n{space}*{quote}
|
||||
|
||||
xhstart [xX]{quote}
|
||||
xhstop {quote}
|
||||
xhinside [^']*
|
||||
xhcat {quote}{space}*\n{space}*{quote}
|
||||
|
||||
/* Delimited quote
|
||||
* Allows embedded spaces and other special characters into identifiers.
|
||||
*/
|
||||
dquote \"
|
||||
xdstart {dquote}
|
||||
xdstop {dquote}
|
||||
xdinside [^"]*
|
||||
|
||||
/* Comments
|
||||
* Ignored by the scanner and parser.
|
||||
*/
|
||||
xcline [\/][\*].*[\*][\/]{space}*\n*
|
||||
xcstart [\/][\*]{op_and_self}*
|
||||
xcstop {op_and_self}*[\*][\/]({space}*|\n)
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user