mirror/fmt
1
0
Fork 0
mirror of https://github.com/fmtlib/fmt.git synced 2025-03-29 01:20:23 +00:00
Code Issues Packages Projects Releases Wiki Activity

Implement string parsing

Browse Source
This commit is contained in:
Victor Zverovich 2019-06-02 07:30:26 -07:00
parent 5b7bbf8853
commit 9df0e2d1f1
1 changed files with 20 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
test/scan-test.cc
View File

@ -21,6 +21,7 @@ struct scan_arg {
unsigned* uint_value; unsigned* uint_value;
long long* long_long_value; long long* long_long_value;
unsigned long long* ulong_long_value; unsigned long long* ulong_long_value;
std::string* string;
// TODO: more types // TODO: more types
}; };
@ -31,6 +32,7 @@ struct scan_arg {
: arg_type(long_long_type), long_long_value(&value) {} : arg_type(long_long_type), long_long_value(&value) {}
scan_arg(unsigned long long& value) scan_arg(unsigned long long& value)
: arg_type(ulong_long_type), ulong_long_value(&value) {} : arg_type(ulong_long_type), ulong_long_value(&value) {}
scan_arg(std::string& value) : arg_type(string_type), string(&value) {}
}; };
} // namespace internal } // namespace internal
@ -112,6 +114,11 @@ struct scan_handler : error_handler {
case ulong_long_type: case ulong_long_type:
*arg_.ulong_long_value = read_uint<unsigned long long>(); *arg_.ulong_long_value = read_uint<unsigned long long>();
break; break;
case string_type: {
while (begin_ != end_ && *begin_ != ' ')
arg_.string->push_back(*begin_++);
break;
}
default: default:
assert(false); assert(false);
} }
@ -178,6 +185,11 @@ TEST(ScanTest, ReadULongLong) {
EXPECT_THROW_MSG(fmt::scan("-42", "{}", n), fmt::format_error, EXPECT_THROW_MSG(fmt::scan("-42", "{}", n), fmt::format_error,
"invalid input"); "invalid input");
} }
TEST(ScanTest, ReadString) {
std::string s;
fmt::scan("foo", "{}", s);
EXPECT_EQ(s, "foo");
}
TEST(ScanTest, InvalidFormat) { TEST(ScanTest, InvalidFormat) {
EXPECT_THROW_MSG(fmt::scan("", "{}"), fmt::format_error, EXPECT_THROW_MSG(fmt::scan("", "{}"), fmt::format_error,
@ -185,3 +197,11 @@ TEST(ScanTest, InvalidFormat) {
EXPECT_THROW_MSG(fmt::scan("", "{"), fmt::format_error, EXPECT_THROW_MSG(fmt::scan("", "{"), fmt::format_error,
"invalid format string"); "invalid format string");
} }
TEST(ScanTest, Example) {
std::string key;
int value;
fmt::scan("answer = 42", "{} = {}", key, value);
EXPECT_EQ(key, "answer");
EXPECT_EQ(value, 42);
}