java-readline-users — Use of Java-Readline

Re: [Java-readline-users] How to install java-readline on Mac?

[Peng Yu <pen...@gm...>]

Hi Bernhard,

I found this patch. Do you mind to update the package? Thanks!

http://creechy.wordpress.com/2011/09/14/henplus-with-java-readline-for-os-x/

On Wed, Oct 26, 2011 at 12:46 PM, Bernhard Bablok <ma...@ba...> wrote:
> Hi,
>
> since I have no practical experience on the MAC platform, I can't help you on
> this issue. Have you thought about posting your question on the jython-list?
>
> Bernhard
>
> Am Mittwoch 26 Oktober 2011, 18:09:55 schrieb Peng Yu:
>> I'm following the instruction at
>> http://wiki.python.org/jython/ReadlineSetup to install java-readline.
>>
>> After the step "vi Makefile#or whatever editor you prefer to fix
>> OS_FLAVOR", I run make. But it gives me the following error. Does
>> anybody know what the problem is?
>
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-- 
Regards,
Peng

Re: [Java-readline-users] How to install java-readline on Mac?

[Bernhard B. <ma...@ba...>]

Hi,

since I have no practical experience on the MAC platform, I can't help you on 
this issue. Have you thought about posting your question on the jython-list?

Bernhard

Am Mittwoch 26 Oktober 2011, 18:09:55 schrieb Peng Yu:
> I'm following the instruction at
> http://wiki.python.org/jython/ReadlineSetup to install java-readline.
> 
> After the step "vi Makefile#or whatever editor you prefer to fix
> OS_FLAVOR", I run make. But it gives me the following error. Does
> anybody know what the problem is?

[Java-readline-users] How to install java-readline on Mac?

[Peng Yu <pen...@gm...>]

Hi,

I'm following the instruction at
http://wiki.python.org/jython/ReadlineSetup to install java-readline.

After the step "vi Makefile#or whatever editor you prefer to fix
OS_FLAVOR", I run make. But it gives me the following error. Does
anybody know what the problem is?

....
make TG=JavaReadline lib
javah -classpath ../../build -jni org.gnu.readline.Readline
touch org_gnu_readline_Readline.h
gcc -I/sw/include -I
/System/Library/Frameworks/JavaVM.framework/Headers -I   -fPIC -DPOSIX
-DJavaReadline \
	                                   -c org_gnu_readline_Readline.c
org_gnu_readline_Readline.c:96: error: ‘rl_gnu_readline_p’ undeclared
here (not in a function)
org_gnu_readline_Readline.c:97: error: ‘rl_readline_state’ undeclared
here (not in a function)
org_gnu_readline_Readline.c:98: error: ‘rl_editing_mode’ undeclared
here (not in a function)
org_gnu_readline_Readline.c:99: error: ‘rl_insert_mode’ undeclared
here (not in a function)
org_gnu_readline_Readline.c:102: error: ‘rl_mark’ undeclared here (not
in a function)
org_gnu_readline_Readline.c:103: error: ‘rl_done’ undeclared here (not
in a function)
org_gnu_readline_Readline.c:104: error: ‘rl_pending_input’ undeclared
here (not in a function)
org_gnu_readline_Readline.c:105: error: ‘rl_dispatching’ undeclared
here (not in a function)
org_gnu_readline_Readline.c:106: error: ‘rl_explicit_arg’ undeclared
here (not in a function)
org_gnu_readline_Readline.c:107: error: ‘rl_numeric_arg’ undeclared
here (not in a function)
org_gnu_readline_Readline.c:108: error: ‘rl_erase_empty_line’
undeclared here (not in a function)
.....

-- 
Regards,
Peng

Re: [Java-readline-users] UTF-8 problem

[Bernhard B. <ma...@ba...>]

Hi Dominique,

I have no problems with non-ascii unicode-characters (like in the German 
ä). There have been reports on problems with the character-encoding 
settings of a Linux xterm. Make sure it fits with the version of X you are 
using.

Bernhard

> Hi,
>
> I have implemented a commandline application using the java-readline.
> However, there seems to be a problem with the character encoding on the
> input strings I get from the readline library. When I enter non-ascii
> unicode characters I get bad output. It works fine when I use the
> PureJava implemetation.
>
> Are there any known issues regarding this or am I doing something wrong?
> Any clues?
>
> Thanks,
> Torkel Dominique
>
>
>
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[Java-readline-users] UTF-8 problem

[Torkel D. <tor...@ho...>]

Hi,

I have implemented a commandline application using the java-readline.
However, there seems to be a problem with the character encoding on the
input strings I get from the readline library. When I enter non-ascii
unicode characters I get bad output. It works fine when I use the
PureJava implemetation.

Are there any known issues regarding this or am I doing something wrong?
Any clues?

Thanks,
Torkel Dominique

[Java-readline-users] FASD project: Online survey launched

[<ben...@id...>]

Dear Open Source developer

I am doing a research project on "Fun and Software Development" in which I kindly invite you to participate.
You will find the online survey under http://fasd.ethz.ch/qsf/. The questionnaire consists of 53 questions and you will need about 15 minutes to complete it.

With the FASD project (Fun and Software Development) we want to define the motivational significance of fun when software developers decide to engage in Open Source projects. What is special about our research project is that a similar survey is planned with software developers in commercial firms. This procedure allows the immediate comparison between the involved individuals and the conditions of production of these two development models. Thus we hope to obtain substantial new insights to the phenomenon of Open Source Development.


With many thanks for your participation,
Benno Luthiger


PS:
The results of the survey will be published under http://www.isu.unizh.ch/fuehrung/blprojects/FASD/.
We have set up the mailing list fa...@we... for this study. Please see http://fasd.ethz.ch/qsf/mailinglist_en.html for registration to this mailing list.

_______________________________________________________________________

Benno Luthiger
Swiss Federal Institute of Technology Zurich
8092 Zurich

Mail: benno.luthiger(at)id.ethz.ch
_______________________________________________________________________

Re: [Java-readline-users] java readline on windows

[Craig M. <cr...@eb...>]

Hi Bernhard,

>Hi Craig,
>
>the JavaGetline.dll in the contrib-directory is only created with cygwin, it 
>should run without it. Can you reproduce your problem from a "normal" 
>DOS-prompt (to be honest: I have not yet worked with XP, so I don't know if 
>it still has a DOS-prompt).
>  
>
I get the same result when  I run it from a DOS prompt. Looks like we'll 
need a new dll for XP.

Craig.

>It might be possible that the DLL does not run under XP (the Visual C++ 
>compiler is rather old). I have not yet managed to create a working DLL with 
>cygwin, it should be possible but I can't figure out how.
>
>Bernhard
>
>  
>
>>Hi,
>>
>>I'm trying to get libreadline-java-0.8.0 working on windows XP (pro)
>>under cygwin. Unfortunately the JVM refuses to load JavaGetline.dll no
>>matter where I install it. I've tried putting it in  the current working
>>directory, c:/WINDOWS and c:/WINDOWS/system32. Although the JVM can see
>>it in all locations it fails to load it with the same error message
>>"java.lang.UnsatisfiedLinkError: ... JavaGetline.dll: Invalid access to
>>memory location."
>>
>>Example error message generated by ReadlineTest program:
>>
>>[craig@acer:src]$ java -classpath ../libreadline-java.jar
>>test.ReadlineTest dummy Getline
>>java.lang.UnsatisfiedLinkError: C:\WINDOWS\JavaGetline.dll: Invalid
>>access to memory location
>>        at java.lang.ClassLoader$NativeLibrary.load(Native Method)
>>        at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1560)
>>        at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1485)
>>        at java.lang.Runtime.loadLibrary0(Runtime.java:788)
>>        at java.lang.System.loadLibrary(System.java:834)
>>        at org.gnu.readline.Readline.load(Readline.java:133)
>>        at test.ReadlineTest.main(ReadlineTest.java:60)
>>
>>
>>JVM :
>>
>>[craig@acer:classes]$ which java
>>/cygdrive/c/j2sdk1.4.2/bin/java
>>
>>
>>Any idea how to make the jvm load the dll? Do I need an XP version, or a
>>version compiled to work with the 1.4.2 JVM? If so, is it possible to
>>compile the dll with cygwin's gcc rather than Visual C++ (I read
>>something about this topic in the mailing lists but wasn't sure what the
>>answer was)?
>>
>>Craig.
>>
>>
>>
>>
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>>    
>>
>
>  
>

Re: [Java-readline-users] vi and emacs edit modes

[Bernhard B. <ma...@ba...>]

Hi Jamie,

do you start the ReadlineTest from the makefile? It will then read a private 
init-file from src/test/tinputrc, which cancels all initialization from 
~/.inputrc. Try changing src/test/tinputrc, or start ReadlineTest without 
arguments (then it won't read the tinputrc).

Maybe this helps. Please let me know your results.

Bernhard

> Hi. I've been trying to use the java readline package in a utility I'm
> writing. I'm having some trouble with the EMACS/vi editing modes. I'm using
> the ReadlineTest class that was included with the download.
>
> If I run the program without a ~/.inputrc file, it runs it EMACS mode as
> default. This works well. Also, if I want to switch to vi editing mode, I
> press ESC, and then Ctrl+j and I can use either vi or emacs (ESC-k or arrow
> keys). If I create the ~/.inputrc file with the line set editing-mode emacs
> , I get the same behaviour.
>
> The strange behaviour happens if I change ~/.inputrc to read set
> editing-mode vi . If I run java ReadlineTest then, EMACS doesn't work, vi
> doesn't work and the ESC-Ctrl-j keystroke doesn't switch.
>
> Many of my users already have the vi line in their ~/.inputrc file (for
> other programs), so command-line history will not work in my app for them.
>
> Does anyone know a way of making the app start up correctly in vi mode?

[Java-readline-users] vi and emacs edit modes

[Jamie J. <jj_...@ya...>]

Hi. I've been trying to use the java readline package in a utility I'm
writing. I'm having some trouble with the EMACS/vi editing modes. I'm using
the ReadlineTest class that was included with the download.

If I run the program without a ~/.inputrc file, it runs it EMACS mode as
default. This works well. Also, if I want to switch to vi editing mode, I
press ESC, and then Ctrl+j and I can use either vi or emacs (ESC-k or arrow
keys). If I create the ~/.inputrc file with the line set editing-mode emacs
, I get the same behaviour.

The strange behaviour happens if I change ~/.inputrc to read set
editing-mode vi . If I run java ReadlineTest then, EMACS doesn't work, vi
doesn't work and the ESC-Ctrl-j keystroke doesn't switch.

Many of my users already have the vi line in their ~/.inputrc file (for
other programs), so command-line history will not work in my app for them.

Does anyone know a way of making the app start up correctly in vi mode?

Thanks!

Re: [Java-readline-users] java readline on windows

[Bernhard B. <ma...@ba...>]

Hi Craig,

the JavaGetline.dll in the contrib-directory is only created with cygwin, it 
should run without it. Can you reproduce your problem from a "normal" 
DOS-prompt (to be honest: I have not yet worked with XP, so I don't know if 
it still has a DOS-prompt).

It might be possible that the DLL does not run under XP (the Visual C++ 
compiler is rather old). I have not yet managed to create a working DLL with 
cygwin, it should be possible but I can't figure out how.

Bernhard

> Hi,
>
> I'm trying to get libreadline-java-0.8.0 working on windows XP (pro)
> under cygwin. Unfortunately the JVM refuses to load JavaGetline.dll no
> matter where I install it. I've tried putting it in  the current working
> directory, c:/WINDOWS and c:/WINDOWS/system32. Although the JVM can see
> it in all locations it fails to load it with the same error message
> "java.lang.UnsatisfiedLinkError: ... JavaGetline.dll: Invalid access to
> memory location."
>
> Example error message generated by ReadlineTest program:
>
> [craig@acer:src]$ java -classpath ../libreadline-java.jar
> test.ReadlineTest dummy Getline
> java.lang.UnsatisfiedLinkError: C:\WINDOWS\JavaGetline.dll: Invalid
> access to memory location
>         at java.lang.ClassLoader$NativeLibrary.load(Native Method)
>         at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1560)
>         at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1485)
>         at java.lang.Runtime.loadLibrary0(Runtime.java:788)
>         at java.lang.System.loadLibrary(System.java:834)
>         at org.gnu.readline.Readline.load(Readline.java:133)
>         at test.ReadlineTest.main(ReadlineTest.java:60)
>
>
> JVM :
>
> [craig@acer:classes]$ which java
> /cygdrive/c/j2sdk1.4.2/bin/java
>
>
> Any idea how to make the jvm load the dll? Do I need an XP version, or a
> version compiled to work with the 1.4.2 JVM? If so, is it possible to
> compile the dll with cygwin's gcc rather than Visual C++ (I read
> something about this topic in the mailing lists but wasn't sure what the
> answer was)?
>
> Craig.
>
>
>
>
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[Java-readline-users] java readline on windows

[Craig M. <cr...@eb...>]

Hi,

I'm trying to get libreadline-java-0.8.0 working on windows XP (pro) 
under cygwin. Unfortunately the JVM refuses to load JavaGetline.dll no 
matter where I install it. I've tried putting it in  the current working 
directory, c:/WINDOWS and c:/WINDOWS/system32. Although the JVM can see 
it in all locations it fails to load it with the same error message 
"java.lang.UnsatisfiedLinkError: ... JavaGetline.dll: Invalid access to 
memory location."

Example error message generated by ReadlineTest program:

[craig@acer:src]$ java -classpath ../libreadline-java.jar 
test.ReadlineTest dummy Getline
java.lang.UnsatisfiedLinkError: C:\WINDOWS\JavaGetline.dll: Invalid 
access to memory location
        at java.lang.ClassLoader$NativeLibrary.load(Native Method)
        at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1560)
        at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1485)
        at java.lang.Runtime.loadLibrary0(Runtime.java:788)
        at java.lang.System.loadLibrary(System.java:834)
        at org.gnu.readline.Readline.load(Readline.java:133)
        at test.ReadlineTest.main(ReadlineTest.java:60)


JVM :

[craig@acer:classes]$ which java
/cygdrive/c/j2sdk1.4.2/bin/java


Any idea how to make the jvm load the dll? Do I need an XP version, or a 
version compiled to work with the 1.4.2 JVM? If so, is it possible to 
compile the dll with cygwin's gcc rather than Visual C++ (I read 
something about this topic in the mailing lists but wasn't sure what the 
answer was)?

Craig.

Re: [Java-readline-users] position in buffer?

[Bernhard B. <ma...@ba...>]

> We use another line-editing library here called Tecla
> (http://www.astro.caltech.edu/~mcs/tecla/). It appears to be more
> fully-featured than GnuReadline. Also, the word-completion callback
> passes a pointer to the line and the current cursor position (it is the
> responsibility of the recipient to work backwards to find the beginning
> of the word).
>
> Any chance you could add support for this library to JavaReadline?

I heard of Tecla before, but I don't have the time to implement that. If=20
somebody does it, I will add it to the distribution.

Bernhard

Re: [Java-readline-users] position in buffer?

[Bob P. <bo...@ci...>]

> Currently, you have no chance. As soon as you can determine the 
> cursor-position (I'll try to implement this in the next release) you can find 
> out by requesting the whole line-buffer. There is no readline-function 
> available for this directly.
> 

We use another line-editing library here called Tecla 
(http://www.astro.caltech.edu/~mcs/tecla/). It appears to be more 
fully-featured than GnuReadline. Also, the word-completion callback 
passes a pointer to the line and the current cursor position (it is the 
responsibility of the recipient to work backwards to find the beginning 
of the word).

Any chance you could add support for this library to JavaReadline?

- Bobman

Re: [Java-readline-users] position in buffer?

[Bernhard B. <ma...@ba...>]

> >>If the word being completed is unique in the buffer,
> >>it can be determined within the completer, but if the keyword is *not=
*
> >>unique in the buffer, is there any way to tell?
> >
> >Could you please clarify what you mean with that?
>
> (Sorry for taking so long.)
>
> Example:
>     myprompt> mycommand -l all<tab> -f all
>
> If the user hits a <tab> where inicated (after the first occurance of
> 'all'), all you get in the completer function is the keyword 'all' and
> no indication if the cursor was after the first or second occurance.
>

Currently, you have no chance. As soon as you can determine the=20
cursor-position (I'll try to implement this in the next release) you can =
find=20
out by requesting the whole line-buffer. There is no readline-function=20
available for this directly.

Bernhard

Re: [Java-readline-users] position in buffer?

[Bob P. <bo...@ci...>]

>
>
>>If the word being completed is unique in the buffer,
>>it can be determined within the completer, but if the keyword is *not*
>>unique in the buffer, is there any way to tell?
>>    
>>
>
>Could you please clarify what you mean with that?
>  
>
(Sorry for taking so long.)

Example:
    myprompt> mycommand -l all<tab> -f all

If the user hits a <tab> where inicated (after the first occurance of 
'all'), all you get in the completer function is the keyword 'all' and 
no indication if the cursor was after the first or second occurance.

- Bobman

>  
>

Re: [Java-readline-users] feature request

[Bernhard B. <ma...@ba...>]

Hi Bob,

you can define the completion char by binding the key to the=20
complete-function. This can be done from within Java or with an=20
initialization file. See the test-program for examples.

Bernhard

> I've got a suggestion for a new feature: additional expansion character=
s.
>
> Currently, the completer is only called when a <tab> is hit. How about
> allowing the developer to specify which characters trigger the
> completer? I'm thinking the '?' would be a nice addition, since the
> shell I am trying to emulate uses that for inline help (different from
> keyword completion, which is provided by <tab>).
>

Re: [Java-readline-users] position in buffer?

[Bernhard B. <ma...@ba...>]

> When the completer is called, is there any way to tell where the cursor
> is in the buffer?

cursor: not yet, but it should be simple to implement it. But I'm not sur=
e if=20
this works, since the completer is called by native code, which in turn m=
ust=20
call native code to query the cursor-position, so wie have:

java -> c -> java -> c

I will try this in the next release.

> If the word being completed is unique in the buffer,
> it can be determined within the completer, but if the keyword is *not*
> unique in the buffer, is there any way to tell?

Could you please clarify what you mean with that?

Thank you, Bernhard

[Java-readline-users] make fails on install Makefile...

[Tom R. <ri...@ss...>]

Hi,

I can't install on my solaris box (2.9).

% make -f Makefile:

make: Fatal error in reader: Makefile, line 31: Unexpected end of line
seen

[Java-readline-users] position in buffer?

[Bob P. <bo...@ci...>]

When the completer is called, is there any way to tell where the cursor 
is in the buffer? If the word being completed is unique in the buffer, 
it can be determined within the completer, but if the keyword is *not* 
unique in the buffer, is there any way to tell?

- Bobman

[Java-readline-users] feature request

[Bob P. <bo...@ci...>]

I've got a suggestion for a new feature: additional expansion characters.

Currently, the completer is only called when a <tab> is hit. How about 
allowing the developer to specify which characters trigger the 
completer? I'm thinking the '?' would be a nice addition, since the 
shell I am trying to emulate uses that for inline help (different from 
keyword completion, which is provided by <tab>).

- Bobman

Re: [Java-readline-users] can't find readline library

[Bob P. <bo...@ci...>]

As it turns out, the problem was not in finding gnureadline; it was in 
finding libjavareadline.

The example code discarded any exception thrown when trying to load the 
library. When I printed out the stack trace instead, I saw which library 
couldn't be loaded. Since I'm using Debian, 'libtermcap' wasn't 
installed by default, which is required by javaReadLine.so. Installing 
the 'libncurses5-dev' package fixed it.

It works find now.

- Bobman

Bernhard Bablok wrote:

>Hm,
>
>there must have been a change in the way the java-interpreter
>searches for libraries. Try setting the system-property java.library.path:
>
>java -Djava.library.path=/lib \
>      -cp /usr/share/java/libreadline-java.jar:. CLITest
>
>Let me know if this works, so I can update the README.
>
>Thanks, Bernhard
>
>  
>
>>I think I've installed the java-readline package correctly, in that a
>>simple test works with stdin. However, it can't seem to find the
>>readline library.
>>
>>I have readline in my /lib directory (libreadline.so.4). My script to
>>run my test sets the library path:
>>    export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib/:/lib/
>>    java -classpath /usr/share/java/libreadline-java.jar:. CLITest
>>
>>When I run it I get the following:
>>    couldn't load readline lib. Using simple stdin.
>>    myprompt>
>>
>>What am I missing?
>>
>>- Bobman
>>    
>>
>
>
>
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>  
>

Re: [Java-readline-users] can't find readline library

[Bernhard B. <ma...@ba...>]

Hm,

there must have been a change in the way the java-interpreter
searches for libraries. Try setting the system-property java.library.path=
:

java -Djava.library.path=3D/lib \
      -cp /usr/share/java/libreadline-java.jar:. CLITest

Let me know if this works, so I can update the README.

Thanks, Bernhard

> I think I've installed the java-readline package correctly, in that a
> simple test works with stdin. However, it can't seem to find the
> readline library.
>
> I have readline in my /lib directory (libreadline.so.4). My script to
> run my test sets the library path:
>     export LD_LIBRARY_PATH=3D$LD_LIBRARY_PATH:/usr/lib/:/lib/
>     java -classpath /usr/share/java/libreadline-java.jar:. CLITest
>
> When I run it I get the following:
>     couldn't load readline lib. Using simple stdin.
>     myprompt>
>
> What am I missing?
>
> - Bobman

[Java-readline-users] can't find readline library

[Bob P. <bo...@ci...>]

I think I've installed the java-readline package correctly, in that a 
simple test works with stdin. However, it can't seem to find the 
readline library.

I have readline in my /lib directory (libreadline.so.4). My script to 
run my test sets the library path:
    export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib/:/lib/
    java -classpath /usr/share/java/libreadline-java.jar:. CLITest

When I run it I get the following:
    couldn't load readline lib. Using simple stdin.
    myprompt>

What am I missing?

- Bobman