1 files changed, 45 insertions, 0 deletions
diff --git a/config/lookup.go b/config/lookup.go
new file mode 100644
index 00000000..1f3c03fe
--- /dev/null
+++ b/config/lookup.go
@@ -0,0 +1,45 @@
+package config
+
+import "strings"
+
+// Lookup retrieves the first value for a given section, optional subsection,
+// and key.
+func (c *Config) Lookup(section, subsection, key string) LookupResult {
+	section = strings.ToLower(section)
+
+	key = strings.ToLower(key)
+	for _, entry := range c.entries {
+		if strings.EqualFold(entry.Section, section) &&
+			entry.Subsection == subsection &&
+			strings.EqualFold(entry.Key, key) {
+			return LookupResult{
+				Kind:  entry.Kind,
+				Value: entry.Value,
+			}
+		}
+	}
+
+	return LookupResult{Kind: ValueMissing}
+}
+
+// LookupAll retrieves all values for a given section, optional subsection,
+// and key.
+func (c *Config) LookupAll(section, subsection, key string) []LookupResult {
+	section = strings.ToLower(section)
+	key = strings.ToLower(key)
+
+	var values []LookupResult
+
+	for _, entry := range c.entries {
+		if strings.EqualFold(entry.Section, section) &&
+			entry.Subsection == subsection &&
+			strings.EqualFold(entry.Key, key) {
+			values = append(values, LookupResult{
+				Kind:  entry.Kind,
+				Value: entry.Value,
+			})
+		}
+	}
+
+	return values
+}