From 7715bdc10f8ea8a0b26715bddb3fb5b973f0d404 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ian@liberator.(none)>
Date: Wed, 3 Jun 2009 17:59:24 +0100
Subject: [PATCH] show-thing database interaction improved

---
 pctb/show-thing.tcl       | 17 +++++++++++++----
 pctb/{stuff => }/text.xpm |  0
 2 files changed, 13 insertions(+), 4 deletions(-)
 rename pctb/{stuff => }/text.xpm (100%)

diff --git a/pctb/show-thing.tcl b/pctb/show-thing.tcl
index 4537e6a..1c55fcd 100755
--- a/pctb/show-thing.tcl
+++ b/pctb/show-thing.tcl
@@ -1,4 +1,10 @@
-#!/usr/bin/tk
+#!/usr/bin/wish
+
+# usage:
+#  run show-thing without args
+#  then on stdin write
+#     one line which is a Tcl list for foolist
+#     the xpm in the format expected
 
 proc manyset {list args} {
     foreach val $list var $args {
@@ -287,11 +293,10 @@ proc read_database {} {
     global database
     set f [open database r]
     while {[gets $f l] >= 0} {
-	if {![regexp {^(\w+) (\d+) ([0-9a-f]{2}+)$} $l \
+	if {![regexp {^(\w+) (\d+) ((?:[0-9a-f]{2})+)$} $l \
 		  dummy context strl strh]} {
 	    error "bad syntax"
 	}
-        binary scan $strw h* strh
 	if {[string length $strh] != $strl*2} { error "$strh $strl" }
 	gets $f l; set width [format %d $l]
 	set bm $context
@@ -300,6 +305,7 @@ proc read_database {} {
 	}
 	set database($bm) $strh
     }
+    close $f
 }
 
 proc write_database {} {
@@ -314,9 +320,12 @@ proc write_database {} {
 	foreach x [lrange $bm 1 end] { append o "$x\n" }
 	lappend ol $o
     }
+    set f [open database.new w]
     foreach o [lsort $ol] {
-	puts -nonewline $o
+	puts -nonewline $f $o
     }
+    close $f
+    file rename -force database.new database
 }
 
 proc update_database/DEFINE {c0 c1 strh} {
diff --git a/pctb/stuff/text.xpm b/pctb/text.xpm
similarity index 100%
rename from pctb/stuff/text.xpm
rename to pctb/text.xpm
-- 
2.30.2