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Overview
Comment: | Allow '$' in the middle of identifiers. Ticket #1066. This is an experimental change. It might be backed out at a later date. (CVS 2197) |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
00a352ea79e0e1e855282c54d0e47016 |
User & Date: | drh 2005-01-11 17:59:48.000 |
Context
2005-01-11
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18:13 | Fix for ticket #1062: Correctly handle redundant terms in a WHERE clause. (CVS 2198) (check-in: 1bee1bb91d user: drh tags: trunk) | |
17:59 | Allow '$' in the middle of identifiers. Ticket #1066. This is an experimental change. It might be backed out at a later date. (CVS 2197) (check-in: 00a352ea79 user: drh tags: trunk) | |
17:46 | Test coverage improvements on tokenize.c. (CVS 2196) (check-in: 5767850cca user: drh tags: trunk) | |
Changes
Changes to src/tokenize.c.
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11 12 13 14 15 16 17 | ************************************************************************* ** An tokenizer for SQL ** ** This file contains C code that splits an SQL input string up into ** individual tokens and sends those tokens one-by-one over to the ** parser for analysis. ** | | | 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | ************************************************************************* ** An tokenizer for SQL ** ** This file contains C code that splits an SQL input string up into ** individual tokens and sends those tokens one-by-one over to the ** parser for analysis. ** ** $Id: tokenize.c,v 1.98 2005/01/11 17:59:48 drh Exp $ */ #include "sqliteInt.h" #include "os.h" #include <ctype.h> #include <stdlib.h> /* |
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45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | ** that cannot be used as part of an identifier. ** ** In this implementation, an identifier can be a string of ** alphabetic characters, digits, and "_" plus any character ** with the high-order bit set. The latter rule means that ** any sequence of UTF-8 characters or characters taken from ** an extended ISO8859 character set can form an identifier. */ static const char isIdChar[] = { /* x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE xF */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, /* 3x */ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 4x */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, /* 5x */ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 6x */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, /* 7x */ }; | > > > > > > | | 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 | ** that cannot be used as part of an identifier. ** ** In this implementation, an identifier can be a string of ** alphabetic characters, digits, and "_" plus any character ** with the high-order bit set. The latter rule means that ** any sequence of UTF-8 characters or characters taken from ** an extended ISO8859 character set can form an identifier. ** ** Ticket #1066. the SQL standard does not allow '$' in the ** middle of identfiers. But many SQL implementations do. ** SQLite will allow '$' in identifiers for compatibility. ** But the feature is undocumented. */ static const char isIdChar[] = { /* x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE xF */ 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 2x */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, /* 3x */ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 4x */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, /* 5x */ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 6x */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, /* 7x */ }; #define IdChar(C) (((c=C)&0x80)!=0 || (c>0x1f && isIdChar[c-0x20])) /* ** Return the length of the token that begins at z[0]. ** Store the token type in *tokenType before returning. */ int sqlite3GetToken(const unsigned char *z, int *tokenType){ int i, c; |
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