# HG changeset patch
# User Henry S. Thompson <ht@inf.ed.ac.uk>
# Date 1656954746 -3600
# Node ID ace590c2fdfc5c4f93cde86e0a546c5dbe1fc03f
# Parent  58b90cd52c157a736daec952808187b0fc22f96c
allow use of global stash

diff -r 58b90cd52c15 -r ace590c2fdfc bin/cdx2tsv.py
--- a/bin/cdx2tsv.py	Fri Jul 01 17:50:06 2022 +0200
+++ b/bin/cdx2tsv.py	Mon Jul 04 18:12:26 2022 +0100
@@ -27,7 +27,10 @@
 
 fields=sys.argv[1:]
 
-fields=[((lambda x,y:(x,eval("lambda f:%s"%y)))(*(f[1:-1].split(',',maxsplit=1))) if f[0]=='(' else f) for f in fields]
+stash={} # This can be used to save an expensive field computation for re-use:
+         # E.g. '(filename,(lambda g:(stash.__setitem__("T1",g) or g)[3].split(".")[1])(f.split("/",maxsplit=5)))'  '(filename,(stash["T1"])[4][0])
+
+fields=[((lambda x,y:(x,eval("lambda f:%s"%y,globals())))(*(f[1:-1].split(',',maxsplit=1))) if f[0]=='(' else f) for f in fields]
 for l in sys.stdin:
   (key,stamp,jj)=l.rstrip().split(' ',maxsplit=2)
   ja=json.loads(jj)