Questions tagged [string-to-symbol]
9 questions
6
votes
1 answer
Crystal language: what to use instead of runtime String::to_sym
I am trying to convert a Ruby program to Crystal.
And I am stuck with missing string.to_sym
I have a BIG XML file, which is too big to fit in memory.
So parsing it all is out of question. Fortunately i do not need all information, only a portion of…
jsaak
- 587
- 4
- 17
6
votes
4 answers
Ruby symbol setup
I was setting up symbols in my code like:
"name_of_symbol".to_sym
However, my principal engineer picked it up during code review as a bad practice and asked me to set symbols like:
:"name_of_symbol"
When I asked him why? He said it's bad…
Jakub Zak
- 1,212
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2
votes
1 answer
To convert variable name to string or symbol
it's possible in rails convert variable name to string?
Example:
stack_overflow = "Fantastic!".
by stack_overflow.to_sym I'll get :Fantastic!.
Instead I would => :stack_overflow
and, if it were possibile, this would be bad programming cause unsafe…
misterwolf
- 424
- 4
- 14
2
votes
2 answers
How to get a property from a plist
I am a newbie in Lisp.
I want to access a particular property from a property list with a string variable like this
(setf sym (list :p1 1))
(setf x "p1")
(getf sym :x)
emotionull
- 595
- 2
- 8
- 24
1
vote
3 answers
Is there an isdigit function (overload) which includes the negative symbol?
I'm trying to search for the beginning of a number. isdigit is there a c++ function that can include negatives in isdigit? So that it will match the first character of the number: "-13"?
Jonathan Mee
- 37,899
- 23
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- 288
1
vote
1 answer
Taking a key from a hash, and interpolate that as a getter on an object
I have a class that creates objects. I've created getter/setter methods for that class.
Class Test
attr_accessor :method1, :method2, :method3, :method4
I have created several instances from that class, and appended them to a list
@object_array =…
ARL
- 986
- 2
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- 25
0
votes
6 answers
Compare two hashes no matter symbols or strings, rails
I would like to compare two hashes and forces them to be equal:
one with Symbols on keys and values
the second with only strings.
e.g:
sym_hash = {:id=>58, :locale=>:"en-US"}
string_hash = {"id"=>58, "locale"=>"en-US"}
Try like this does not…
Kruupös
- 5,097
- 3
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- 43
0
votes
1 answer
SAS IML use of Mattrib with Macro (symget) in a loop
In an IML proc I have several martices and several vectors with the names of columns:
proc IML;
mydata1 = {1 2 3, 2 3 4};
mydata2 = {1 2, 2 3};
names1 = {'red' 'green' 'blue'};
names2 = {'black' 'white'};
To assign column names to…
Alexander Kharlamov
- 31
- 3
-1
votes
1 answer
String to symbols and numbers
Is there a way to turn the addition, subtraction, multiplication, and division symbols in a string to actual addition, subtraction, multiplication, and division symbols, along with the numbers inside the string to actual numbers? So, instead of the…
jessica
- 1,667
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