* [ruby-core:90239] [Ruby trunk Bug#15371] IRB with ARGV
[not found] <redmine.issue-15371.20181203033638@ruby-lang.org>
@ 2018-12-03 3:36 ` svnpenn
2018-12-03 17:20 ` [ruby-core:90267] " shevegen
` (3 subsequent siblings)
4 siblings, 0 replies; 5+ messages in thread
From: svnpenn @ 2018-12-03 3:36 UTC (permalink / raw)
To: ruby-core
Issue #15371 has been reported by svnpenn (Steven Penny).
----------------------------------------
Bug #15371: IRB with ARGV
https://bugs.ruby-lang.org/issues/15371
* Author: svnpenn (Steven Penny)
* Status: Open
* Priority: Normal
* Assignee:
* Target version:
* ruby -v:
* Backport: 2.4: UNKNOWN, 2.5: UNKNOWN
----------------------------------------
PHP allows you to pass ARGV in interactive mode:
$ php -a -- alpha beta gamma
php > print $argv[3] . PHP_EOL;
gamma
and Python offers 4 ways:
$ python3 - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
$ python3 -- - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
$ python3 -i - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
$ python3 -i -- - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
However IRB seems to have no way to accomplish this:
$ irb - alpha beta gamma
/usr/share/ruby/2.3.0/irb/init.rb:213:in `parse_opts':
Unrecognized switch: - (IRB::UnrecognizedSwitch)
$ irb -- alpha beta gamma
/usr/share/ruby/2.3.0/irb/magic-file.rb:8:in `initialize': No such file or
directory @ rb_sysopen - alpha (Errno::ENOENT)
$ irb -- - alpha beta gamma
/usr/share/ruby/2.3.0/irb/magic-file.rb:8:in `initialize': No such file or
directory @ rb_sysopen - - (Errno::ENOENT)
$ irb - -- alpha beta gamma
/usr/share/ruby/2.3.0/irb/init.rb:213:in `parse_opts':
Unrecognized switch: - (IRB::UnrecognizedSwitch)
--
https://bugs.ruby-lang.org/
^ permalink raw reply [flat|nested] 5+ messages in thread
* [ruby-core:90267] [Ruby trunk Bug#15371] IRB with ARGV
[not found] <redmine.issue-15371.20181203033638@ruby-lang.org>
2018-12-03 3:36 ` [ruby-core:90239] [Ruby trunk Bug#15371] IRB with ARGV svnpenn
@ 2018-12-03 17:20 ` shevegen
2018-12-03 19:25 ` [ruby-core:90268] " svnpenn
` (2 subsequent siblings)
4 siblings, 0 replies; 5+ messages in thread
From: shevegen @ 2018-12-03 17:20 UTC (permalink / raw)
To: ruby-core
Issue #15371 has been updated by shevegen (Robert A. Heiler).
I can not say whether the above is a bug or not; however had a grep
shows that there are two toplevel methods for IRB to make use
of ARGV, both in init.rb:
init.rb: def IRB.setup(ap_path, argv: ::ARGV)
init.rb: def IRB.parse_opts(argv: ::ARGV)
By the way, I find it slightly amusing that python's "there is only
one way" became "there are four ways". ;-)
----------------------------------------
Bug #15371: IRB with ARGV
https://bugs.ruby-lang.org/issues/15371#change-75382
* Author: svnpenn (Steven Penny)
* Status: Open
* Priority: Normal
* Assignee:
* Target version:
* ruby -v:
* Backport: 2.4: UNKNOWN, 2.5: UNKNOWN
----------------------------------------
PHP allows you to pass ARGV in interactive mode:
$ php -a -- alpha beta gamma
php > print $argv[3] . PHP_EOL;
gamma
and Python offers 4 ways:
$ python3 - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
$ python3 -- - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
$ python3 -i - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
$ python3 -i -- - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
However IRB seems to have no way to accomplish this:
$ irb - alpha beta gamma
/usr/share/ruby/2.3.0/irb/init.rb:213:in `parse_opts':
Unrecognized switch: - (IRB::UnrecognizedSwitch)
$ irb -- alpha beta gamma
/usr/share/ruby/2.3.0/irb/magic-file.rb:8:in `initialize': No such file or
directory @ rb_sysopen - alpha (Errno::ENOENT)
$ irb -- - alpha beta gamma
/usr/share/ruby/2.3.0/irb/magic-file.rb:8:in `initialize': No such file or
directory @ rb_sysopen - - (Errno::ENOENT)
$ irb - -- alpha beta gamma
/usr/share/ruby/2.3.0/irb/init.rb:213:in `parse_opts':
Unrecognized switch: - (IRB::UnrecognizedSwitch)
--
https://bugs.ruby-lang.org/
^ permalink raw reply [flat|nested] 5+ messages in thread
* [ruby-core:90268] [Ruby trunk Bug#15371] IRB with ARGV
[not found] <redmine.issue-15371.20181203033638@ruby-lang.org>
2018-12-03 3:36 ` [ruby-core:90239] [Ruby trunk Bug#15371] IRB with ARGV svnpenn
2018-12-03 17:20 ` [ruby-core:90267] " shevegen
@ 2018-12-03 19:25 ` svnpenn
2019-03-22 14:19 ` [ruby-core:91936] " onlynone
2019-08-14 2:35 ` [ruby-core:94334] [Ruby master Feature#15371] " merch-redmine
4 siblings, 0 replies; 5+ messages in thread
From: svnpenn @ 2018-12-03 19:25 UTC (permalink / raw)
To: ruby-core
Issue #15371 has been updated by svnpenn (Steven Penny).
shevegen (Robert A. Heiler) wrote:
> By the way, I find it slightly amusing that python's "there is only
> one way" became "there are four ways". ;-)
Its actually only 2 ways if you want a true REPL:
$ python3 -i - alpha beta gamma
>>> import sys
>>> sys.argv[3]
'gamma'
$ python3 -i -- - alpha beta gamma
>>> import sys
>>> sys.argv[3]
'gamma'
Further, looks like PRY has the same issue as RUBY:
http://github.com/pry/pry/issues/1901
Workaround is to use RIPL:
$ ripl - alpha beta gamma
>> ARGV[3]
=> "gamma"
$ ripl -- alpha beta gamma
>> ARGV[3]
=> "gamma"
http://github.com/cldwalker/ripl
----------------------------------------
Bug #15371: IRB with ARGV
https://bugs.ruby-lang.org/issues/15371#change-75383
* Author: svnpenn (Steven Penny)
* Status: Open
* Priority: Normal
* Assignee:
* Target version:
* ruby -v:
* Backport: 2.4: UNKNOWN, 2.5: UNKNOWN
----------------------------------------
PHP allows you to pass ARGV in interactive mode:
$ php -a -- alpha beta gamma
php > print $argv[3] . PHP_EOL;
gamma
and Python offers 4 ways:
$ python3 - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
$ python3 -- - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
$ python3 -i - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
$ python3 -i -- - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
However IRB seems to have no way to accomplish this:
$ irb - alpha beta gamma
/usr/share/ruby/2.3.0/irb/init.rb:213:in `parse_opts':
Unrecognized switch: - (IRB::UnrecognizedSwitch)
$ irb -- alpha beta gamma
/usr/share/ruby/2.3.0/irb/magic-file.rb:8:in `initialize': No such file or
directory @ rb_sysopen - alpha (Errno::ENOENT)
$ irb -- - alpha beta gamma
/usr/share/ruby/2.3.0/irb/magic-file.rb:8:in `initialize': No such file or
directory @ rb_sysopen - - (Errno::ENOENT)
$ irb - -- alpha beta gamma
/usr/share/ruby/2.3.0/irb/init.rb:213:in `parse_opts':
Unrecognized switch: - (IRB::UnrecognizedSwitch)
--
https://bugs.ruby-lang.org/
^ permalink raw reply [flat|nested] 5+ messages in thread
* [ruby-core:91936] [Ruby trunk Bug#15371] IRB with ARGV
[not found] <redmine.issue-15371.20181203033638@ruby-lang.org>
` (2 preceding siblings ...)
2018-12-03 19:25 ` [ruby-core:90268] " svnpenn
@ 2019-03-22 14:19 ` onlynone
2019-08-14 2:35 ` [ruby-core:94334] [Ruby master Feature#15371] " merch-redmine
4 siblings, 0 replies; 5+ messages in thread
From: onlynone @ 2019-03-22 14:19 UTC (permalink / raw)
To: ruby-core
Issue #15371 has been updated by onlynone (Steven Willis).
svnpenn (Steven Penny) wrote:
> shevegen (Robert A. Heiler) wrote:
> > By the way, I find it slightly amusing that python's "there is only
> > one way" became "there are four ways". ;-)
>
> Its actually only 2 ways if you want a true REPL:
It's actually only 1 way. The `--` is just a command line option/argument parsing convention to mark an explicit break between options and arguments. It's useful when one of your arguments might look like an option. Like if you're trying to remove a file called `-i`, you can write `rm -- -i` and the `-i` will be treated as a filename argument and not the `-i` option to ask for confirmation before deletion. It's not a python thing.
----------------------------------------
Bug #15371: IRB with ARGV
https://bugs.ruby-lang.org/issues/15371#change-77269
* Author: svnpenn (Steven Penny)
* Status: Open
* Priority: Normal
* Assignee:
* Target version:
* ruby -v:
* Backport: 2.4: UNKNOWN, 2.5: UNKNOWN
----------------------------------------
PHP allows you to pass ARGV in interactive mode:
$ php -a -- alpha beta gamma
php > print $argv[3] . PHP_EOL;
gamma
and Python offers 4 ways:
$ python3 - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
$ python3 -- - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
$ python3 -i - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
$ python3 -i -- - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
However IRB seems to have no way to accomplish this:
$ irb - alpha beta gamma
/usr/share/ruby/2.3.0/irb/init.rb:213:in `parse_opts':
Unrecognized switch: - (IRB::UnrecognizedSwitch)
$ irb -- alpha beta gamma
/usr/share/ruby/2.3.0/irb/magic-file.rb:8:in `initialize': No such file or
directory @ rb_sysopen - alpha (Errno::ENOENT)
$ irb -- - alpha beta gamma
/usr/share/ruby/2.3.0/irb/magic-file.rb:8:in `initialize': No such file or
directory @ rb_sysopen - - (Errno::ENOENT)
$ irb - -- alpha beta gamma
/usr/share/ruby/2.3.0/irb/init.rb:213:in `parse_opts':
Unrecognized switch: - (IRB::UnrecognizedSwitch)
--
https://bugs.ruby-lang.org/
^ permalink raw reply [flat|nested] 5+ messages in thread
* [ruby-core:94334] [Ruby master Feature#15371] IRB with ARGV
[not found] <redmine.issue-15371.20181203033638@ruby-lang.org>
` (3 preceding siblings ...)
2019-03-22 14:19 ` [ruby-core:91936] " onlynone
@ 2019-08-14 2:35 ` merch-redmine
4 siblings, 0 replies; 5+ messages in thread
From: merch-redmine @ 2019-08-14 2:35 UTC (permalink / raw)
To: ruby-core
Issue #15371 has been updated by jeremyevans0 (Jeremy Evans).
Backport deleted (2.4: UNKNOWN, 2.5: UNKNOWN)
Tracker changed from Bug to Feature
I think this is a feature request, not a bug report. It does seem like a useful feature, so I've submitted a pull request to irb for it: https://github.com/ruby/irb/pull/22
----------------------------------------
Feature #15371: IRB with ARGV
https://bugs.ruby-lang.org/issues/15371#change-80726
* Author: svnpenn (Steven Penny)
* Status: Open
* Priority: Normal
* Assignee:
* Target version:
----------------------------------------
PHP allows you to pass ARGV in interactive mode:
$ php -a -- alpha beta gamma
php > print $argv[3] . PHP_EOL;
gamma
and Python offers 4 ways:
$ python3 - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
$ python3 -- - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
$ python3 -i - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
$ python3 -i -- - alpha beta gamma
>>> import sys
>>> print(sys.argv[3])
gamma
However IRB seems to have no way to accomplish this:
$ irb - alpha beta gamma
/usr/share/ruby/2.3.0/irb/init.rb:213:in `parse_opts':
Unrecognized switch: - (IRB::UnrecognizedSwitch)
$ irb -- alpha beta gamma
/usr/share/ruby/2.3.0/irb/magic-file.rb:8:in `initialize': No such file or
directory @ rb_sysopen - alpha (Errno::ENOENT)
$ irb -- - alpha beta gamma
/usr/share/ruby/2.3.0/irb/magic-file.rb:8:in `initialize': No such file or
directory @ rb_sysopen - - (Errno::ENOENT)
$ irb - -- alpha beta gamma
/usr/share/ruby/2.3.0/irb/init.rb:213:in `parse_opts':
Unrecognized switch: - (IRB::UnrecognizedSwitch)
--
https://bugs.ruby-lang.org/
^ permalink raw reply [flat|nested] 5+ messages in thread
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[not found] <redmine.issue-15371.20181203033638@ruby-lang.org>
2018-12-03 3:36 ` [ruby-core:90239] [Ruby trunk Bug#15371] IRB with ARGV svnpenn
2018-12-03 17:20 ` [ruby-core:90267] " shevegen
2018-12-03 19:25 ` [ruby-core:90268] " svnpenn
2019-03-22 14:19 ` [ruby-core:91936] " onlynone
2019-08-14 2:35 ` [ruby-core:94334] [Ruby master Feature#15371] " merch-redmine
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