Initial commit

internal/privacy/stripper.go

@@ -0,0 +1,47 @@
+// Package privacy provides privacy tag handling for claude-mnemonic.
+package privacy
+
+import (
+	"regexp"
+	"strings"
+)
+
+var (
+	// privateTagRegex matches <private>...</private> tags
+	privateTagRegex = regexp.MustCompile(`(?s)<private>.*?</private>`)
+
+	// memoryTagRegex matches <claude-mnemonic-context>...</claude-mnemonic-context> tags
+	memoryTagRegex = regexp.MustCompile(`(?s)<claude-mnemonic-context>.*?</claude-mnemonic-context>`)
+)
+
+// StripPrivateTags removes all <private>...</private> content from text.
+func StripPrivateTags(text string) string {
+	return privateTagRegex.ReplaceAllString(text, "")
+}
+
+// StripMemoryTags removes all <claude-mnemonic-context>...</claude-mnemonic-context> content from text.
+func StripMemoryTags(text string) string {
+	return memoryTagRegex.ReplaceAllString(text, "")
+}
+
+// StripAllTags removes both private and memory context tags.
+func StripAllTags(text string) string {
+	text = StripPrivateTags(text)
+	text = StripMemoryTags(text)
+	return text
+}
+
+// IsEntirelyPrivate checks if the text is entirely within <private> tags.
+func IsEntirelyPrivate(text string) bool {
+	stripped := StripPrivateTags(text)
+	return strings.TrimSpace(stripped) == ""
+}
+
+// Clean performs full privacy cleaning on text.
+// This is the main function to use before storing any user content.
+func Clean(text string) string {
+	// Strip both types of tags
+	text = StripAllTags(text)
+	// Trim whitespace
+	return strings.TrimSpace(text)
+}