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Have psql escape bytes in strings for variables follow the backend

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conventions of only allowing octal, like \045.  Remove support for
\decimal, \0octal, and \0xhex which matches the strtol() function but
didn't make sense with backslashes.

These now return the same character:

	test=> \set x '\54'
	test=> \echo :x
	,
	test=> \set x '\054'
	test=> \echo :x
	,

THIS IS A BACKWARD COMPATIBILITY CHANGE.
This commit is contained in:
Bruce Momjian
2005-05-30 14:50:35 +00:00
parent 6616e23264
commit f13c132072
1 changed files with 3 additions and 22 deletions
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25
src/bin/psql/psqlscan.l
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@@ -33,7 +33,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/bin/psql/psqlscan.l,v 1.10 2005/05/26 01:24:29 tgl Exp $
* $PostgreSQL: pgsql/src/bin/psql/psqlscan.l,v 1.11 2005/05/30 14:50:35 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -849,29 +849,10 @@ other .
"\\r" { appendPQExpBufferChar(output_buf, '\r'); }
"\\f" { appendPQExpBufferChar(output_buf, '\f'); }
"\\"[1-9][0-9]* {
/* decimal case */
appendPQExpBufferChar(output_buf,
(char) strtol(yytext + 1, NULL, 0));
}
"\\"0[0-7]* {
"\\"[0-7]{1,3} {
/* octal case */
appendPQExpBufferChar(output_buf,
(char) strtol(yytext + 1, NULL, 0));
}
"\\"0[xX][0-9A-Fa-f]+ {
/* hex case */
appendPQExpBufferChar(output_buf,
(char) strtol(yytext + 1, NULL, 0));
}
"\\"0[xX] {
/* failed hex case */
yyless(2);
appendPQExpBufferChar(output_buf,
(char) strtol(yytext + 1, NULL, 0));
(char) strtol(yytext + 1, NULL, 8));
}
"\\". { emit(yytext + 1, 1); }