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Handle backslashes correctly in strings that also have doubled quotes when

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we are using the NO_BACKSLASH_ESCAPES SQL mode. (Bug #6368)
This commit is contained in:
jimw@mysql.com 2005-02-03 16:14:02 -08:00
parent 9eca8dced6
commit f32c61fbaf
3 changed files with 26 additions and 1 deletions
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14
mysql-test/r/sql_mode.result
View File

@ -386,4 +386,18 @@ p mask example
20 \\\\% \\\\%
20 \\\\% \\\\_
DROP TABLE t1;
SET @@SQL_MODE='NO_BACKSLASH_ESCAPES';
SELECT 'a\\b', 'a\\\"b', 'a''\\b', 'a''\\\"b';
a\\b a\\\"b a'\\b a'\\\"b
a\\b a\\\"b a'\\b a'\\\"b
SELECT "a\\b", "a\\\'b", "a""\\b", "a""\\\'b";
a\\b a\\\'b a"\\b a"\\\'b
a\\b a\\\'b a"\\b a"\\\'b
SET @@SQL_MODE='';
SELECT 'a\\b', 'a\\\"b', 'a''\\b', 'a''\\\"b';
a\b a\"b a'\b a'\"b
a\b a\"b a'\b a'\"b
SELECT "a\\b", "a\\\'b", "a""\\b", "a""\\\'b";
a\b a\'b a"\b a"\'b
a\b a\'b a"\b a"\'b
SET @@SQL_MODE=@OLD_SQL_MODE;

10
mysql-test/t/sql_mode.test
View File

@ -174,4 +174,14 @@ order by masks.p, example;
DROP TABLE t1;
# Bug #6368: Make sure backslashes mixed with doubled quotes are handled
# correctly in NO_BACKSLASH_ESCAPES mode
SET @@SQL_MODE='NO_BACKSLASH_ESCAPES';
SELECT 'a\\b', 'a\\\"b', 'a''\\b', 'a''\\\"b';
SELECT "a\\b", "a\\\'b", "a""\\b", "a""\\\'b";
SET @@SQL_MODE='';
SELECT 'a\\b', 'a\\\"b', 'a''\\b', 'a''\\\"b';
SELECT "a\\b", "a\\\'b", "a""\\b", "a""\\\'b";
SET @@SQL_MODE=@OLD_SQL_MODE;

3
sql/sql_lex.cc
View File

@ -334,7 +334,8 @@ static char *get_text(LEX *lex)
continue;
}
#endif
if (*str == '\\' && str+1 != end)
if (!(lex->thd->variables.sql_mode & MODE_NO_BACKSLASH_ESCAPES) &&
*str == '\\' && str+1 != end)
{
switch(*++str) {
case 'n':