Can you make a basic guide to designing a good Command Line User Interface?
Sincerely, Keba
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M$6 Answers
strtok() - Split string into tokens
strcmp(), strcmpi() - Compare strings
atoi() - Convert string to integer
So, split the command line into tokens with strtok(), compare the tokens to keywords with strcmp(), and when necessary convert numbers from ASCII to integer with atoi().
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M$
Also, there is a good lib called argtable. Also written in ANSI C, so it's very portable.
Chose whatever you like most. Both are cross platform and easy portable.
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M$http://software.informer.com/getfree-atmega-at-commands-bascom-avr/
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M$Usage: cat OPTION... FILE...
Concatenate FILE(s), or standard input, to standard output.
-A, --show-all equivalent to -vET
-b, --number-nonblank number nonempty output lines
-e equivalent to -vE
-E, --show-ends display $ at end of each line
-n, --number number all output lines
-s, --squeeze-blank suppress repeated empty output lines
-t equivalent to -vT
-T, --show-tabs display TAB characters as ^I
-u (ignored)
-v, --show-nonprinting use ^ and M- notation, except for LFD and TAB
--help display this help and exit
--version output version information and exit
With no FILE, or when FILE is -, read standard input.
Examples:
cat f - g Output f's contents, then standard input, then g's contents.
cat Copy standard input to standard output.
Report cat bugs to bug-coreutils@gnu.org
GNU coreutils home page:
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M$http://technet.microsoft.com/en-us/library/ee156811.aspx
gnu has a set of standards too
http://www.gnu.org/prep/standards/html_node/Command_002dLine-Interfaces.html
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M$You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
M$