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| TAB Completion ? https://www.singular.uni-kl.de/forum/viewtopic.php?f=10&t=2065 |
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| Author: | vinay [ Wed Feb 29, 2012 5:48 pm ] |
| Post subject: | TAB Completion ? |
I just now compiled Singular-3-1-4 from source code on Ubuntu-12.04 (development branch), AMD-Athlon Processor server. The compilation was successful. However after compilation I seem to have lost some features of the Singular command window like TAB completion (of command). Further the usual key-strokes like backspace and arrow keys produce their escape characters (e.g. ^H, ^[[A,^[[C, etc). In other words the command window behaves like VT-100 terminal. Any suggestions? Thanks in advance. VInay |
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| Author: | hannes [ Thu Mar 01, 2012 11:30 am ] |
| Post subject: | Re: TAB Completion ? |
Install readline (and the development package to readline) (configure searches for libreadline.a/libreadline.so and readline.h) Rerun configure and make at least in the subdirectories Singular and kernel: Code: cd Singular
./config.status --recheck ./config.status cd ../kernel make install cd ../Singular make install |
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| Author: | vinay [ Thu Mar 01, 2012 6:33 pm ] |
| Post subject: | Re: TAB Completion ? |
Ah! Thanks a lot. The libreadline-dev was the culprit. I didnt notice before compilation that this package was missing. by the way how come it was not detected by config? -- VInay |
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| Author: | hannes [ Fri Mar 02, 2012 11:02 am ] |
| Post subject: | Re: TAB Completion ? |
readline is optional. If it is not found by configure a different way for input is used, Depending on the existing libraries there are the following possibilities: static readline, dynamic readline, emulated readline, fgets. the Singular command Code: system("with"); outputs(beside other tings) the chosen method |
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| Author: | vinay [ Sun Mar 04, 2012 6:29 am ] |
| Post subject: | Re: TAB Completion ? |
Can you please explain the difference between all 4? And how it is determined? I could not trace much. I found variables in Singular/configure called ac_cv_*_readline. However I could not find the place these variables are set! Also I found the #define's called HAVE_DYN_RL, HAVE_READLINE and FEREAD. -- VInay |
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| Author: | hannes [ Mon Mar 05, 2012 1:18 pm ] |
| Post subject: | Re: TAB Completion ? |
static readline: input via readline, requires libreadline.* and readline.h uses HAVE_READLINE emulated readline: input with line editing, requires libtermcap or libncurses or libcurses, uses HAVE_FEREAD fgets: input via fgets (if all other fail) dynamic readline: input via readline if libreadline.so is available at runtime used HAVE_DYN_RL, will never be set automaically by configure (it is thought for binary distributions: works also without libreadline.so, but take advantage of it if possible) |
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