Skip site navigation (1) Skip section navigation (2)

Re: invisible characters in readline

From: Reece Hart <reece(at)in-machina(dot)com>
To: pgsql-patches(at)postgresql(dot)org
Subject: Re: invisible characters in readline
Date: 2004-01-16 00:19:07
Message-ID: 1074212347.26792.8.camel@tallac (view raw or flat)
Thread:
Lists: pgsql-patches
I have no idea what happened to the first lines of the patch. Here goes
again, with a prompt example.

# fancy readline prompt patch for psql
# 
# This is a patch to support readline prompts which contain non-printing
# characters, as for fancy colorized prompts.  This was nearly a direct
# lift from bash-2.05b's lib/readline/display.c, per guidance from Chet
# Ramey.
#
# Usage:
# Invisible characters within the prompt must be quoted with %[ and %].
# example: \set PROMPT1 '%[%033[1;33m%]%n(at)%/%R%[%033[0m%]%# '
# 
# Is pset.useReadline used anywhere? It's set to 0 by default, even when
# readline is in use, and therefore I ignored it below.
#
# 2004/01/15 (Thu) 14:27 Reece Hart <reece(at)in-machina(dot)com>


--- postgresql-7.4.1/src/bin/psql/prompt.c-orig	2004-01-15
10:47:05.000000000 -0800
+++ postgresql-7.4.1/src/bin/psql/prompt.c	2004-01-15 14:21:27.000000000
-0800
@@ -14,4 +14,5 @@
 #include "common.h"
 #include "variables.h"
+#include "input.h"
 
 #ifdef WIN32
@@ -242,4 +243,17 @@
 					break;
 
+			    case '[':
+			    case ']':
+#if defined (USE_READLINE)
+				  buf[0] = '\001';
+				  buf[1] = (*p == '[') ? RL_PROMPT_START_IGNORE :
RL_PROMPT_END_IGNORE;
+				  buf[2] = '\0';
+#else
+					  /* Should we remove text between %[ and %]
+						 e.g., for fancy prompts on dumb terminals ?
+						 If so, under what conditions? */
+#endif /* USE_READLINE */
+				  break;
+				/* end case [ or ] */
+					
 					/* execute command */
 				case '`':


In response to

pgsql-patches by date

Next:From: Tom LaneDate: 2004-01-16 00:54:02
Subject: Re: invisible characters in readline
Previous:From: Reece HartDate: 2004-01-15 23:57:55
Subject: invisible characters in readline

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group