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# ==== Purpose ====
#
# Escape occurences of " or ' in a string, in order to be used inside
# an SQL statement.
#
# ==== Usage ====
#
# --let $escape_string= String
# [--let $enclosing_char= "|' (default is ")]
# --source include/escape_sql.inc
# --echo $escape_string
#
# Parameters:
# $escape_string
# String to search for occurences of the $enclosing_char and
# escape them according to SQL syntax. It is also the output
# parameter.
# $enclosing_char
# The character that will be used to enclose $escape_string when
# included in an SQL statement.
#
if (!$escape_string)
{
--die Error: set $escape_string before sourcing escape_sql.inc
}
if ($escape_string != '')
{
--let $_enclosing_char= "
if ($enclosing_char)
{
--let $_enclosing_char= $enclosing_char
}
--let $_output_filename= `SELECT UUID()`
--let $_output_filename= $MYSQLTEST_VARDIR/tmp/$_output_filename
--let full_output_filename= $_output_filename
--let to_replace= $escape_string
--let used_quote= $_enclosing_char
perl;
my $out= $ENV{'full_output_filename'};
my $to_replace= $ENV{'to_replace'};
my $quote= $ENV{'used_quote'};
$to_replace =~ s/$quote/$quote$quote/g;
open(FILE, ">", $out) or die "Error $? opening $output_filename: $!";
print FILE $to_replace or die "Error $? writing to $output_filename: $!";
close FILE or die "Error $? closing $output_filename: $!";
chmod 0777, $out;
EOF
--let $escape_string= `SELECT LOAD_FILE('$_output_filename')`
}
# Cleanup
--remove_file $_output_filename