From b0ce8b83ba85c486e53eb19e5316b306399a991b Mon Sep 17 00:00:00 2001
From: Ian Jackson <ian@liberator.relativity.greenend.org.uk>
Date: Sun, 13 Feb 2011 19:32:20 +0000
Subject: [PATCH] gui: read "train * is *" from .record into trainnum2train
 global array

---
 hostside/gui | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/hostside/gui b/hostside/gui
index 2472e72..78297c6 100755
--- a/hostside/gui
+++ b/hostside/gui
@@ -756,6 +756,7 @@ proc tractbrake-userinput {train tract brake speedw} {
 
 proc tractbrake-ensure {train} {
     upvar #0 speedcurve/$train sc
+    global trainnum2train
     if {[info exists sc]} return ;# try this only once
     set sc 0
 
@@ -771,12 +772,21 @@ proc tractbrake-ensure {train} {
     }
     while {[llength $sc] <= 126} { lappend sc x }
     while {[gets $f l] >= 0} {
-	if {![regexp {^train (\S+) step (\d+)=([0-9.]+)$} $l \
-		  dummy tr step velocity]} continue
-	if {[string compare $tr $train] || $step<=0 || $step>126} {
-	    error "bad velocity line $l ?" {} {TRACTBRAKE SKIP}
+	if {[regexp {^train (\S+) step (\d+)=([0-9.]+)$} $l \
+		 dummy tr step velocity]} {
+	    if {[string compare $tr $train] || $step<=0 || $step>126} {
+		error "bad velocity line $train $l ?"
+	    }
+	    set sc [lreplace $sc $step $step $velocity]
+	} elseif {[regexp {^train (\S+) is (\d+) } $l \
+		       dummy tr trainnum]} {
+	    if {[string compare $tr $train]} {
+		error "bad train line $train $l ?"
+	    }
+	    set trainnum2train($trainnum) $tr
+	} else {
+	    # fine, whatever
 	}
-	set sc [lreplace $sc $step $step $velocity]
     }
     close $f
     if {[lsearch -exact $sc x]>=0} {
-- 
2.30.2