Update line_width.rb (in manual)

[PhilippePerret]

For consistency (use of function rather than defining variable)

[pointlessone]

Thank you for your contribution but I'm not sure what is the purpose of this change.

Feel free to reopen with a clarification.

[PhilippePerret]

Hi Alexander,
As mentioned earlier, I made this code modification in the manual for the sake of consistency. In the example, it employs variable-based definition, which necessitates the use of:

self.<variable> = <value>

whereas in all other instances across the codebase, a function with the same name as the variable is utilized, allowing for a simpler form like:

<variable>(<value>)

# or without parentheses, as is common in DSL: 

<variable> <value>

I apologize if this modification does not seem relevant to you.

[pointlessone]

Right, I see now. This manual section doesn't mention the regular DSL-style API, though. It only points out the distinction between attribute assignment and local variable assignment as it's a common gotcha.

[PhilippePerret]

This manual section doesn't mention the regular DSL-style API, though. It only points out the distinction between attribute assignment and local variable assignment as it's a common gotcha.

I agree.

But the manual is a whole, isn't it? And I find that it creates confusion to always have the use of one method throughout the manual, and then suddenly switch to using the explicit definition of a variable... The subject of the section is not "you can also define attribute by assignment", it's "the line width".
I had to look into the code to understand why the logic was changing all of a sudden.
It's not consistent.

But again, if you don't find it relevant, no problem.

Have fun!