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Use 0x01 for newlines in saved history. It was determined to be not

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used by multi-byte sequences, but futher invesetigation might prove this
to be false.
This commit is contained in:
Bruce Momjian 2006-02-12 05:24:38 +00:00
parent f7d9874415
commit 18cbc7aefc
1 changed files with 12 additions and 3 deletions
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15
src/bin/psql/input.c
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@ -3,7 +3,7 @@
*
* Copyright (c) 2000-2005, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/bin/psql/input.c,v 1.47 2006/02/11 21:55:35 momjian Exp $
* $PostgreSQL: pgsql/src/bin/psql/input.c,v 1.48 2006/02/12 05:24:38 momjian Exp $
*/
#include "postgres_fe.h"
@ -26,6 +26,15 @@ static bool useReadline;
static bool useHistory;
char *psql_history;
/*
* Preserve newlines in saved queries by mapping '\n' to NL_IN_HISTORY
*
* It is assumed NL_IN_HISTORY will never be entered by the user
* nor appear inside a multi-byte string. 0x00 is not properly
* handled by the readline routines so it can not be used
* for this purpose.
*/
#define NL_IN_HISTORY 0x01
enum histcontrol
{
@ -213,7 +222,7 @@ static void encode_history()
cur_hist; cur_hist = next_history())
for (cur_ptr = cur_hist->line; *cur_ptr; cur_ptr++)
if (*cur_ptr == '\n')
*cur_ptr = '\0';
*cur_ptr = NL_IN_HISTORY;
}
static void decode_history()
@ -224,7 +233,7 @@ static void decode_history()
for (history_set_pos(0), cur_hist = current_history();
cur_hist; cur_hist = next_history())
for (cur_ptr = cur_hist->line; *cur_ptr; cur_ptr++)
if (*cur_ptr == '\0')
if (*cur_ptr == NL_IN_HISTORY)
*cur_ptr = '\n';
}