1 files changed, 82 insertions, 0 deletions
diff --git a/toolsrc/src/PackageSpec.cpp b/toolsrc/src/PackageSpec.cpp
new file mode 100644
index 000000000..97183043d
--- /dev/null
+++ b/toolsrc/src/PackageSpec.cpp
@@ -0,0 +1,82 @@
+#include "pch.h"
+#include "PackageSpec.h"
+
+namespace vcpkg
+{
+    static bool is_valid_package_spec_char(char c)
+    {
+        return (c == '-') || isdigit(c) || (isalpha(c) && islower(c));
+    }
+
+    expected<PackageSpec> PackageSpec::from_string(const std::string& spec_as_string, const triplet& default_target_triplet)
+    {
+        auto pos = spec_as_string.find(':');
+        if (pos == std::string::npos)
+        {
+            return from_name_and_triplet(spec_as_string, default_target_triplet);
+        }
+
+        auto pos2 = spec_as_string.find(':', pos + 1);
+        if (pos2 != std::string::npos)
+        {
+            return std::error_code(package_spec_parse_result::TOO_MANY_COLONS);
+        }
+
+        const std::string name = spec_as_string.substr(0, pos);
+        const triplet target_triplet = triplet::from_canonical_name(spec_as_string.substr(pos + 1));
+        return from_name_and_triplet(name, target_triplet);
+    }
+
+    expected<PackageSpec> PackageSpec::from_name_and_triplet(const std::string& name, const triplet& target_triplet)
+    {
+        if (std::find_if_not(name.cbegin(), name.cend(), is_valid_package_spec_char) != name.end())
+        {
+            return std::error_code(package_spec_parse_result::INVALID_CHARACTERS);
+        }
+
+        PackageSpec p;
+        p.m_name = name;
+        p.m_target_triplet = target_triplet;
+        return p;
+    }
+
+    const std::string& PackageSpec::name() const
+    {
+        return this->m_name;
+    }
+
+    const triplet& PackageSpec::target_triplet() const
+    {
+        return this->m_target_triplet;
+    }
+
+    std::string PackageSpec::display_name() const
+    {
+        return Strings::format("%s:%s", this->name(), this->target_triplet());
+    }
+
+    std::string PackageSpec::dir() const
+    {
+        return Strings::format("%s_%s", this->m_name, this->m_target_triplet);
+    }
+
+    std::string PackageSpec::toString() const
+    {
+        return this->display_name();
+    }
+
+    std::string to_printf_arg(const PackageSpec& spec)
+    {
+        return spec.toString();
+    }
+
+    bool operator==(const PackageSpec& left, const PackageSpec& right)
+    {
+        return left.name() == right.name() && left.target_triplet() == right.target_triplet();
+    }
+
+    std::ostream& operator<<(std::ostream& os, const PackageSpec& spec)
+    {
+        return os << spec.toString();
+    }
+}