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StringJoin can take a separator.

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This commit is contained in:
Jacob Dufault 2018-01-17 17:51:58 -08:00
parent 3132572e72
commit 3058e15460
1 changed files with 7 additions and 4 deletions
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11
src/utils.h
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@ -49,12 +49,14 @@ std::vector<std::string> SplitString(const std::string& str,
std::string LowerPathIfCaseInsensitive(const std::string& path); std::string LowerPathIfCaseInsensitive(const std::string& path);
template <typename TValues, typename TMap> template <typename TValues, typename TMap>
std::string StringJoinMap(const TValues& values, const TMap& map) { std::string StringJoinMap(const TValues& values,
const TMap& map,
const std::string& sep = ", ") {
std::string result; std::string result;
bool first = true; bool first = true;
for (auto& entry : values) { for (auto& entry : values) {
if (!first) if (!first)
result += ", "; result += sep;
first = false; first = false;
result += map(entry); result += map(entry);
} }
@ -62,8 +64,9 @@ std::string StringJoinMap(const TValues& values, const TMap& map) {
} }
template <typename TValues> template <typename TValues>
std::string StringJoin(const TValues& values) { std::string StringJoin(const TValues& values, const std::string& sep = ", ") {
return StringJoinMap(values, [](const std::string& entry) { return entry; }); return StringJoinMap(values, [](const std::string& entry) { return entry; },
sep);
} }
template <typename TCollection, typename TValue> template <typename TCollection, typename TValue>