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Add E'' to internally created SQL strings that contain backslashes.

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Improve code clarity by using macros for E'' processing.
This commit is contained in:
Bruce Momjian
2005-07-02 17:01:59 +00:00
parent 654efe6aaa
commit 74b49a8129
12 changed files with 91 additions and 89 deletions
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20
src/backend/utils/adt/quote.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/quote.c,v 1.15 2005/03/21 16:29:20 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/quote.c,v 1.16 2005/07/02 17:01:50 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -60,19 +60,25 @@ quote_literal(PG_FUNCTION_ARGS)
len = VARSIZE(t) - VARHDRSZ;
/* We make a worst-case result area; wasting a little space is OK */
result = (text *) palloc(len * 2 + 2 + VARHDRSZ);
result = (text *) palloc(len * 2 + 3 + VARHDRSZ);
cp1 = VARDATA(t);
cp2 = VARDATA(result);
for(; len-- > 0; cp1++)
if (*cp1 == '\\')
{
*cp2++ = ESCAPE_STRING_SYNTAX;
break;
}
len = VARSIZE(t) - VARHDRSZ;
cp1 = VARDATA(t);
*cp2++ = '\'';
while (len-- > 0)
{
if (*cp1 == '\'')
*cp2++ = '\'';
else if (*cp1 == '\\')
*cp2++ = '\\';
if (SQL_STR_DOUBLE(*cp1))
*cp2++ = *cp1;
*cp2++ = *cp1++;
}
*cp2++ = '\'';