Hello,
I can answer just the first point -
On Mon, 05 Nov 2012 00:15:17 +0100, Sietse Brouwer
Lukáš wrote:
it seems that Ctx [re]defines the system variable HOME on its run
Did some digging, and indeed it does. This is what happens, if I read the code correctly (lines 11681-11696 of context/bin/mtxrun): * `homedir` is read from the environment variable USERPROFILE on Windows, and from HOME on Linux. * both USERPROFILE and HOME (and environment.homedir) are then set to the value of `homedir`.
Questions this raises:
(1) Windows does not seem to use HOME
That's true, that's why I decided to use a variable of this name.
(it's not in any of the lists of environment variables that I found), only HOMEDRIVE and HOMEPATH, so what do you use it for?
That's true, too. The HOMEPATH variable points to "c:/Document and Settings/blablabla" - I didn't want to change this variable to "my" value "d:/Lukas" as many programs may suppose location "c:/Document and Settings" and don't need to use "%HOMEPATH%" when they want to obtain the directory of user settings/data. So, if possible (= when I CAN AFFECT some program behavior; like Ctx, gnuplot and other command-line oriented programs) I'm using "my" variable HOME. Also, I redirected "My Documents" folder (under Windows) to "d:/Lukas". Surprisingly, when you do this redirection (via "My Documents" properties - "Change Location" or similar button), "My Documents" location is changed but HOMEPATH variable keeps its default settings, "c:/Documents and Settings/...". So the state of user documents folder is a bit "schizophrenic" from this moment as "My Documets" are redirected to "d:/Lukas" whilst HOMEPATH points to "c:/Documents and Settings/...". As "My Documents" location is not detectable from the command line (supposing you don't use a tool which reads a key in the registry which contains the value of "My Documents" location), I defined (on all computers, notebooks etc. I'm working with) a new system [local] variable "HOME" which points to the same dir as "My Documents" and which was not in use by Windows. There was no name HOME collision problem so far - so I choose this name. Best regards, Lukas -- Ing. Lukáš Procházka [mailto:LPr@pontex.cz] Pontex s. r. o. [mailto:pontex@pontex.cz] [http://www.pontex.cz] Bezová 1658 147 14 Praha 4 Tel: +420 244 062 238 Fax: +420 244 461 038