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platform_system_core
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Make Join support string delimiters 

We've needed this several times in the past.

Change-Id: I7324e8083fe2ff1aa0bf392a8c124fc2f3bb26e2
Test: Full android build
Signed-off-by: Casey Dahlin <sadmac@google.com>
This commit is contained in:
Casey Dahlin 2015-10-30 18:54:38 -07:00
parent 24704399cd
commit 5345f1df0d
2 changed files with 6 additions and 2 deletions
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6
base/include/base/strings.h
View File

@ -36,8 +36,8 @@ std::vector<std::string> Split(const std::string& s,
std::string Trim(const std::string& s);
// Joins a container of things into a single string, using the given separator.
template <typename ContainerT>
std::string Join(const ContainerT& things, char separator) {
template <typename ContainerT, typename SeparatorT>
std::string Join(const ContainerT& things, SeparatorT separator) {
if (things.empty()) {
return "";
}
@ -53,6 +53,8 @@ std::string Join(const ContainerT& things, char separator) {
// We instantiate the common cases in strings.cpp.
extern template std::string Join(const std::vector<std::string>&, char);
extern template std::string Join(const std::vector<const char*>&, char);
extern template std::string Join(const std::vector<std::string>&, const std::string&);
extern template std::string Join(const std::vector<const char*>&, const std::string&);
// Tests whether 's' starts with 'prefix'.
bool StartsWith(const std::string& s, const char* prefix);

2
base/strings.cpp
View File

@ -83,6 +83,8 @@ std::string Trim(const std::string& s) {
// aid compile time and binary size.
template std::string Join(const std::vector<std::string>&, char);
template std::string Join(const std::vector<const char*>&, char);
template std::string Join(const std::vector<std::string>&, const std::string&);
template std::string Join(const std::vector<const char*>&, const std::string&);
bool StartsWith(const std::string& s, const char* prefix) {
return s.compare(0, strlen(prefix), prefix) == 0;