1 files changed, 71 insertions, 0 deletions
diff --git a/vendor/codeberg.org/gruf/go-kv/util.go b/vendor/codeberg.org/gruf/go-kv/util.go
new file mode 100644
index 000000000..a9526bf3d
--- /dev/null
+++ b/vendor/codeberg.org/gruf/go-kv/util.go
@@ -0,0 +1,71 @@
+package kv
+
+import (
+	"strconv"
+
+	"codeberg.org/gruf/go-byteutil"
+	"codeberg.org/gruf/go-kv/format"
+)
+
+// appendQuoteKey will append and escape/quote a formatted key string.
+func appendQuoteKey(buf *byteutil.Buffer, str string) {
+	switch {
+	case !strconv.CanBackquote(str):
+		// Append quoted and escaped string
+		buf.B = strconv.AppendQuote(buf.B, str)
+	case format.ContainsDoubleQuote(str):
+		// Double quote and escape string
+		buf.B = append(buf.B, '"')
+		buf.B = format.AppendEscape(buf.B, str)
+		buf.B = append(buf.B, '"')
+	case len(str) < 1 || format.ContainsSpaceOrTab(str):
+		// Double quote this string as-is
+		buf.WriteString(`"` + str + `"`)
+	default:
+		// Append string as-is
+		buf.WriteString(str)
+	}
+}
+
+// appendQuoteValue will append and escape/quote a formatted value string.
+func appendQuoteValue(buf *byteutil.Buffer, str string) {
+	switch {
+	case !strconv.CanBackquote(str):
+		// Append quoted and escaped string
+		buf.B = strconv.AppendQuote(buf.B, str)
+		return
+	case !doubleQuoted(str):
+		if format.ContainsDoubleQuote(str) {
+			// Double quote and escape string
+			buf.B = append(buf.B, '"')
+			buf.B = format.AppendEscape(buf.B, str)
+			buf.B = append(buf.B, '"')
+			return
+		} else if format.ContainsSpaceOrTab(str) {
+			// Double quote this string as-is
+			buf.WriteString(`"` + str + `"`)
+			return
+		}
+	}
+
+	// Append string as-is
+	buf.WriteString(str)
+}
+
+// doubleQuoted will return whether 'str' is double quoted.
+func doubleQuoted(str string) bool {
+	if len(str) < 2 ||
+		str[0] != '"' || str[len(str)-1] != '"' {
+		return false
+	}
+	var delim bool
+	for i := len(str) - 2; i >= 0; i-- {
+		switch str[i] {
+		case '\\':
+			delim = !delim
+		default:
+			return !delim
+		}
+	}
+	return !delim
+}