Re: Context
- To: mathgroup at smc.vnet.net
- Subject: [mg70971] Re: [mg70956] Context
- From: Daniel Huber <dh at metrohm.ch>
- Date: Fri, 3 Nov 2006 01:39:19 -0500 (EST)
- References: <200611021149.GAA15806@smc.vnet.net> <acbec1a40611020635m2fd171fdqb2d1f837b8f3491a@mail.gmail.com> <454A1513.6010508@metrohm.ch> <acbec1a40611020831g779b6577k630e8b0425b92f1f@mail.gmail.com>
Hi Chris, that's correct. The problem comes when you use SetDelayed. Daniel Chris Chiasson wrote: > I should have said it with code. > > If a text file contains the following 3 lines, I believe it should > print "x`". > > Begin["x`"]; > Print[Context[t]]; > End[]; > > > > On 11/2/06, Daniel Huber <dh at metrohm.ch> wrote: >> Hi Chris, >> it does not matter how you load fun. You get the same behaviour if you >> use Get. >> Daniel >> >> >> Daniel >> >> >> Chris Chiasson wrote: >> > I am guessing that Get only has different behavior because it passes >> > the commands into the Kernel sequentially. fun is only sending a >> > single CompoundExpression (and it has already been parsed by the time >> > it has been defined). >> > >> > On 11/2/06, dh <dh at metrohm.ch> wrote: >> >> >> >> Hello, >> >> >> >> consider: >> >> >> >> fun[x_]:=( Begin[x]; >> >> >> >> Print[t]; >> >> >> >> End[]; >> >> >> >> ); >> >> >> >> according to the manual one would think that the variable t in >> context x >> >> >> >> is printed. However, this is wrong! What is printed is Global`t. >> >> >> >> Therefore, the context to which a symbol belongs is determined during >> >> >> >> parsing and NOT execution. >> >> >> >> Can anybode give more insight and strict rules for this quirck? >> >> >> >> Daniel >> >> >> >> >> >> >> > >> > >> >> >> -- >> >> Daniel Huber >> Metrohm Ltd. >> Oberdorfstr. 68 >> CH-9100 Herisau >> Tel. +41 71 353 8585, Fax +41 71 353 8907 >> E-Mail:<mailto:dh at metrohm.ch> >> Internet:<http://www.metrohm.ch> >> >> > > -- Daniel Huber Metrohm Ltd. Oberdorfstr. 68 CH-9100 Herisau Tel. +41 71 353 8585, Fax +41 71 353 8907 E-Mail:<mailto:dh at metrohm.ch> Internet:<http://www.metrohm.ch>
- References:
- Context
- From: dh <dh@metrohm.ch>
- Context