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Factor CLI argument transcoding

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This commit is contained in:
Frédéric Mangano 2020-12-26 13:00:20 +01:00
parent fd5fa3cd5f
commit 6db7f07bd5
3 changed files with 18 additions and 13 deletions
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27
src/cli.cc
View File

@ -60,7 +60,7 @@ ot::status ot::parse_options(int argc, char** argv, ot::options& opt, FILE* comm
{
static ot::encoding_converter to_utf8("", "UTF-8");
std::string utf8;
std::string::size_type equal;
const char* equal;
ot::status rc;
bool set_all = false;
opt = {};
@ -86,21 +86,16 @@ ot::status ot::parse_options(int argc, char** argv, ot::options& opt, FILE* comm
opt.overwrite = true;
break;
case 'd':
rc = to_utf8(optarg, utf8);
if (rc != ot::st::ok)
return {st::bad_arguments, "Could not encode argument into UTF-8: " + rc.message};
opt.to_delete.emplace_back(std::move(utf8));
opt.to_delete.emplace_back(optarg);
break;
case 'a':
case 's':
rc = to_utf8(optarg, utf8);
if (rc != ot::st::ok)
return {st::bad_arguments, "Could not encode argument into UTF-8: " + rc.message};
if ((equal = utf8.find('=')) == std::string::npos)
equal = strchr(optarg, '=');
if (equal == nullptr)
return {st::bad_arguments, "Comment does not contain an equal sign: "s + optarg + "."};
if (c == 's')
opt.to_delete.emplace_back(utf8.substr(0, equal));
opt.to_add.emplace_back(std::move(utf8));
opt.to_delete.emplace_back(optarg, equal - optarg);
opt.to_add.emplace_back(optarg);
break;
case 'S':
opt.delete_all = true;
@ -130,6 +125,16 @@ ot::status ot::parse_options(int argc, char** argv, ot::options& opt, FILE* comm
opt.paths_in.emplace_back(argv[i]);
}
// Convert arguments to UTF-8.
for (std::list<std::string>* args : { &opt.to_add, &opt.to_delete }) {
for (std::string& arg : *args) {
rc = to_utf8(arg, utf8);
if (rc != ot::st::ok)
return {st::bad_arguments, "Could not encode argument into UTF-8: " + rc.message};
arg = std::move(utf8);
}
}
if (opt.in_place && opt.path_out)
return {st::bad_arguments, "Cannot combine --in-place and --output."};

2
src/opustags.h
View File

@ -450,7 +450,7 @@ struct options {
*
* Option: --delete, --set
*/
std::vector<std::string> to_delete;
std::list<std::string> to_delete;
/**
* Delete all the existing comments.
*

2
t/cli.cc
View File

@ -71,7 +71,7 @@ void check_good_arguments()
opt = parse({"opustags", "x", "--output", "y", "-D", "-s", "X=Y Z", "-d", "a=b"});
if (opt.paths_in.size() != 1 || opt.paths_in.front() != "x" || !opt.path_out ||
opt.path_out != "y" || !opt.delete_all || opt.overwrite || opt.to_delete.size() != 2 ||
opt.to_delete[0] != "X" || opt.to_delete[1] != "a=b" ||
opt.to_delete.front() != "X" || *std::next(opt.to_delete.begin()) != "a=b" ||
opt.to_add != std::list<std::string>{"X=Y Z"})
throw failure("unexpected option parsing result for case #1");