This question already has answers here:
how to create tcl proc with hyphen flag arguments
(4 answers)
Closed 7 years ago.
I have a script that will require many short and long options and was wondering what would be the most efficient way to parse the command line arguments. Using for-each and if-else would make the code too long and difficult to modify, so is there be any standard function that can help me (something like getopt for C)?
We discussed this four days ago and a few suggestions were posted.
There is also the cmdline package in Tcllib.
Related
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Is there any way I can define a variable in LaTeX?
(5 answers)
Closed 5 years ago.
Is there a way to add a text by reference using LaTeX? I have several text references to 'versionXX.yy'. I wonder if I can define this in one place so I don't need to update it in all places.
Thanks
You could define a variable or new command with your version at the beginning and then just use this definition. See here
Btw. there is a special site called tex.stackexchange.com for this kind of questions.
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What's a Rails plugin, or Ruby gem, to automatically fix English grammar?
(3 answers)
Closed 6 years ago.
Is there any ruby method to convert string into sentence.
Like this is a sentence to This is a sentence.
or
i m happy to I'm happy
a="this is a sentence"
puts a.capitalize
output
This is a sentence
I found gingerice gem that might apt for my question.
BTW thank you all for having time for me.
Its working as expected for me.
Regards,
Sreeraj
This question already has answers here:
What is the standard (or best supported) big number (arbitrary precision) library for Lua?
(6 answers)
Closed 8 years ago.
As an example, I want to convert:
1j16qd5g0lc
To:
5589146303201280
But currently ‘tonumber’ converts it to:
5.5891463032013e+15
I understand that there is a bit.tonumber function that might work better but that function is not available to me. Could someone implement what I need easily? I am not too familiar Lua.
Thank you! :)
Try print(string.format("%.0f",tonumber("1j16qd5g0lc",36))).
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An Interesting phenomenon of Lua's table
(2 answers)
Closed 9 years ago.
In Lua is seems that if a single numeric key is missing from the table, the length still continues counting:
> print(#{[1]=1,[2]=2,[4]=4})
4
But this skipping two indices stops at the break
> print(#{[1]=1,[2]=2,[5]=5})
2
It's not just the unconvential constructor. Even if an skipped index is created after the creation of the table it still counts past it, so long the break is only one.
> x={1,2}
> print(#x)
2
> x[4]=4
> print(#x)
Is this an implementation error or is this how Lua supposed to work. Why is it like this? Any references to documentation of this would be interesting.
This is how it works. The length of a table is only defined if the table is a sequence, with no holes. See http://www.lua.org/manual/5.2/manual.html#3.4.6 .
This question already has answers here:
Closed 11 years ago.
Possible Duplicate:
What does map(&:name) mean in Ruby?
Assume that Game is an active record model, what does the & mean in the following code?
Games.group_by(&:genre)
See this: What do you call the &: operator in Ruby?