Add function for writing INI files

ini.go

@@ -32,9 +32,9 @@ func NewParser(reader io.Reader) *Parser {
 	}
 }
 
-// Parses the next key-value pair in the `parser` stream, returning the parsed [Entry], or an empty
-// one if nothing was parsed, and a `bool` representing whether or not there is any further data
-// available to parse.
+// Attempts to parse the next key-value pair in the `parser` stream, returning the parsed [Entry],
+// or an empty one if nothing was parsed, and a `bool` representing whether or not there is any
+// further data available to parse.
 //
 // Note that the `parser` does not guarantee any parse order for key-value pairs extracted from the
 // `parser` stream.
@@ -95,6 +95,27 @@ type Parser struct {
 	isEnd   bool
 }
 
+// Attempts to write `entries` to `writer`, returning any error that occured during writing.
+func Write(writer io.Writer, entries []Entry) error {
+	// TODO: Not happy with this solution to writing files, needs more revision.
+	var section = ""
+
+	for _, entry := range entries {
+		if entry.Section != section {
+			section = entry.Section
+
+			writer.Write([]byte{'['})
+			writer.Write([]byte(entry.Section))
+			writer.Write([]byte{']', '\n'})
+		}
+
+		writer.Write([]byte(entry.Key))
+		writer.Write([]byte{' ', '=', ' '})
+		writer.Write([]byte(entry.Value))
+		writer.Write([]byte{'\n'})
+	}
+}
+
 // Returns a string with the the outer-most quotes surrounding `s` trimmed, should they exist.
 func unquote(s string) string {
 	var sLen = len(s)