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repl indenting

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This commit is contained in:
Ben Burdette 2020-06-24 13:14:49 -06:00
parent b18ed02b76
commit 93e9307329
1 changed files with 38 additions and 40 deletions
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78
src/nix/repl.cc
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@ -103,28 +103,28 @@ static NixRepl * curRepl; // ugly
static char * completionCallback(char * s, int *match) { static char * completionCallback(char * s, int *match) {
auto possible = curRepl->completePrefix(s); auto possible = curRepl->completePrefix(s);
if (possible.size() == 1) { if (possible.size() == 1) {
*match = 1;
auto *res = strdup(possible.begin()->c_str() + strlen(s));
if (!res) throw Error("allocation failure");
return res;
} else if (possible.size() > 1) {
auto checkAllHaveSameAt = [&](size_t pos) {
auto &first = *possible.begin();
for (auto &p : possible) {
if (p.size() <= pos || p[pos] != first[pos])
return false;
}
return true;
};
size_t start = strlen(s);
size_t len = 0;
while (checkAllHaveSameAt(start + len)) ++len;
if (len > 0) {
*match = 1; *match = 1;
auto *res = strdup(possible.begin()->c_str() + strlen(s)); auto *res = strdup(std::string(*possible.begin(), start, len).c_str());
if (!res) throw Error("allocation failure"); if (!res) throw Error("allocation failure");
return res; return res;
} else if (possible.size() > 1) { }
auto checkAllHaveSameAt = [&](size_t pos) {
auto &first = *possible.begin();
for (auto &p : possible) {
if (p.size() <= pos || p[pos] != first[pos])
return false;
}
return true;
};
size_t start = strlen(s);
size_t len = 0;
while (checkAllHaveSameAt(start + len)) ++len;
if (len > 0) {
*match = 1;
auto *res = strdup(std::string(*possible.begin(), start, len).c_str());
if (!res) throw Error("allocation failure");
return res;
}
} }
*match = 0; *match = 0;
@ -155,7 +155,7 @@ static int listPossibleCallback(char *s, char ***avp) {
vp = check((char **)malloc(possible.size() * sizeof(char*))); vp = check((char **)malloc(possible.size() * sizeof(char*)));
for (auto & p : possible) for (auto & p : possible)
vp[ac++] = check(strdup(p.c_str())); vp[ac++] = check(strdup(p.c_str()));
*avp = vp; *avp = vp;
@ -211,14 +211,12 @@ void NixRepl::mainLoop(const std::vector<std::string> & files)
// input without clearing the input so far. // input without clearing the input so far.
continue; continue;
} else { } else {
printMsg(lvlError, e.msg()); printMsg(lvlError, e.msg());
} }
} catch (Error & e) { } catch (Error & e) {
// printMsg(lvlError, error + "%1%%2%", (settings.showTrace ? e.prefix() : ""), e.msg()); printMsg(lvlError, e.msg());
printMsg(lvlError, e.msg());
} catch (Interrupted & e) { } catch (Interrupted & e) {
// printMsg(lvlError, error + "%1%%2%", (settings.showTrace ? e.prefix() : ""), e.msg()); printMsg(lvlError, e.msg());
printMsg(lvlError, e.msg());
} }
// We handled the current input fully, so we should clear it // We handled the current input fully, so we should clear it
@ -399,21 +397,21 @@ bool NixRepl::processLine(string line)
if (command == ":?" || command == ":help") { if (command == ":?" || command == ":help") {
std::cout std::cout
<< "The following commands are available:\n" << "The following commands are available:\n"
<< "\n" << "\n"
<< " <expr> Evaluate and print expression\n" << " <expr> Evaluate and print expression\n"
<< " <x> = <expr> Bind expression to variable\n" << " <x> = <expr> Bind expression to variable\n"
<< " :a <expr> Add attributes from resulting set to scope\n" << " :a <expr> Add attributes from resulting set to scope\n"
<< " :b <expr> Build derivation\n" << " :b <expr> Build derivation\n"
<< " :e <expr> Open the derivation in $EDITOR\n" << " :e <expr> Open the derivation in $EDITOR\n"
<< " :i <expr> Build derivation, then install result into current profile\n" << " :i <expr> Build derivation, then install result into current profile\n"
<< " :l <path> Load Nix expression and add it to scope\n" << " :l <path> Load Nix expression and add it to scope\n"
<< " :p <expr> Evaluate and print expression recursively\n" << " :p <expr> Evaluate and print expression recursively\n"
<< " :q Exit nix-repl\n" << " :q Exit nix-repl\n"
<< " :r Reload all files\n" << " :r Reload all files\n"
<< " :s <expr> Build dependencies of derivation, then start nix-shell\n" << " :s <expr> Build dependencies of derivation, then start nix-shell\n"
<< " :t <expr> Describe result of evaluation\n" << " :t <expr> Describe result of evaluation\n"
<< " :u <expr> Build derivation, then start nix-shell\n"; << " :u <expr> Build derivation, then start nix-shell\n";
} }
else if (command == ":a" || command == ":add") { else if (command == ":a" || command == ":add") {