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Add help (:?)

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This commit is contained in:
Eelco Dolstra 2013-09-09 13:22:33 +02:00
parent e133e91410
commit 4b33c2dd4c
1 changed files with 13 additions and 1 deletions
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14
nix-repl.cc
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@ -248,7 +248,19 @@ void NixRepl::processLine(string line)
string command = string(line, 0, 2);
if (command == ":a") {
if (command == ":?") {
cout << "The following commands are available:\n"
<< "\n"
<< " <expr> Evaluate and print expression\n"
<< " :a <expr> Add attributes from resulting set to scope\n"
<< " :b <expr> Build derivation\n"
<< " :l <path> Load Nix expression and add it to scope\n"
<< " :p <expr> Evaluate and print expression recursively\n"
<< " :s <expr> Build dependencies of derivation, then start nix-shell\n"
<< " :t <expr> Describe result of evaluation\n";
}
else if (command == ":a") {
Value v;
evalString(string(line, 2), v);
addAttrsToScope(v);