Actually, what if I wanted to allow spaces in the value, but only if it is surrounded by quotes? I've tried this: let entry = let lquote = del /("[\t ]*)?/ "\"" in let rquote = del /([\t ]*")?/ "\"" in let body = store /[^\n\t "]([^\n"]*[^\n\t "])?/ in let sto = square lquote body rquote in Build.key_value_line Rx.word Sep.space_equal sto but augparse says: lenses/vmware_config.aug:28.15-.40:exception: Inconsistency in lens square I guess the problem is that opening and closing quotes should match, which doesn't make sense if the spaces are included in them… Is there a way to do this? Raphaël <div class="gmail_quote">On Sat, Oct 27, 2012 at 10:44 AM, Raphaël Pinson <<a href="mailto:raphael.pinson@camptocamp.com" target="_blank">raphael.pinson@camptocamp.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div class="gmail_quote"><div><div class="h5">On Sat, Oct 27, 2012 at 1:05 AM, David Lutterkort <<a href="mailto:lutter@redhat.com" target="_blank">lutter@redhat.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div>On Fri, 2012-10-26 at 15:50 +0200, Raphaël Pinson wrote: > Hello, > > > I'm trying to use the square lens to manage entries with optional quotes: > > let entry = > let quote = del /"?/ "\"" > in let body = store /[^\n"]+/ > in let sto = square quote body quote > in Build.key_value_line Rx.word Sep.space_equal sto > > > This works with quoted entries, but not with entries that don't have > quotes, such as: > > key = value </div>There's a bug in how the ctype for square lenses gets rewritten - it doesn't account for the first argument of square accepting the empty word, making your quote in effect del /"/ "\"" I've fixed that in commit 51922f9b </blockquote></div></div><div> Great, it works now. Thank you! </div></div><div class="HOEnZb"><div class="h5"> -- Raphaël Pinson Administrateur Systèmes & Réseaux Camptocamp France Savoie Technolac BP 352 48, avenue du Lac du Bourget 73372 Le Bourget du Lac, Cedex <a href="http://www.camptocamp.com" target="_blank">www.camptocamp.com</a> </div></div></blockquote></div> -- Raphaël Pinson Administrateur Systèmes & Réseaux Camptocamp France Savoie Technolac BP 352 48, avenue du Lac du Bourget 73372 Le Bourget du Lac, Cedex <a href="http://www.camptocamp.com" target="_blank">www.camptocamp.com</a>