Talk:Parse command-line arguments: Difference between revisions

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:Do you mean follow the conventions of an OS which might be different from the one where the command line is being used? Or do you mean that the program should detect what OS it is running under (and, for an interpreted language, that can change without any changes in the program). Meanwhile, the rules for quote handling under windows look [http://ss64.com/nt/cmd.html baroque]. Also the concept of "followed by a string" can be ambiguous (in the same option? in the next option? in the same option after an = character? ...) And then there's the handling of -- followed by whitespace that should probably be respected if we are using hyphen to delimit command line options? Meanwhile, another possibility here (one that seems to have been followed by some "implementations") is that of documenting the default parsing provided by the language. --[[User:Rdm|Rdm]] 10:36, 13 September 2011 (UTC)

::Hi.

::# Choose your OS (This may affect the normal option syntax)

::# What is the normal way of adding an option that is stand-alone; i.e. the presence/absence is used to set a boolean variable within your program, and has a name of 'b'.

::# What is the normal way of adding a string value associated with an option name of 's'

::# What is the normal way of adding a numeric value associated with an option name of 'n'

::Use extra syntax appropriate for the OS, but implement it in such a way that the order of the options is set by the option names b, s, and n and not hard-coded into the prog.

::Note: No mention of determining an OS. I have tried to leave enough scope to cater for different option syntaxes in different OS's, hoping that what I have nailed down should be workable under more than one OS, and recognising that even within one OS, there may be multiple schemes for specifying options (choose one, probably the one adopted by your languages compiler/interpreter). Please don't invent an options scheme for the task, adhere to some 'standard'. --[[User:Paddy3118|Paddy3118]] 12:44, 13 September 2011 (UTC)