Changing Atoms autocomplete - autocomplete

Question

Okay. So Atom installs autocomplete-plus by default. Its quite helpful when I write code, but for example it writes std::cout << "/* message */" << '\n'; when I write cout, but I want it to write std::cout << "/* message */" << std::endl, cause there is a difference between those two, the second one flushes the buffer. How can I make it work my way?

Answer 1

You can specify your desired autocomplete behavior within your snippets.cson file.
Open snippets.cson by going to Edit -> Snippets...
Add the following to the file:
'.source.c':
'cout':
'prefix': 'cout'
'body': 'std::cout << "/* ${1:message} */" << std::endl$2'
The first line selects which grammar to activate on (C in this case, you can find more here).
The second line is a description of the snippet; it could be anything.
The third line (prefix) specifies what you would have to type in a C file for the snippet to work.
In this example, typing cout in a C file while show the description in the autocomplete menu and allow for tab-completion. The last line specifies what the snippet should expand to. Use the $ syntax to specify tab ordering.
Note, you can specify default values for tab stops within the snippet using syntax like ${1:message}. In this case, the snippet will expand and automatically select the text message for rapid editing. Hitting tab again will proceed to tab stop 2, or the end of the line.
Note, you can specify any number of additional snippets for each grammar, as in:
'.source.c':
'cout':
'prefix': 'cout'
'body': 'std::cout << "/* ${1:message} */" << std::endl$2'
'Another snippet description':
'prefix': 'something'
'body': 'Something is ${1:nice}'