From f079c3c5522acdcbdac7f01f449f57435df95a52 Mon Sep 17 00:00:00 2001
From: ksqsf <login@ksqsf.moe>
Date: Sun, 3 Sep 2023 00:23:29 +0800
Subject: [PATCH] feat: add `append_comment` option to `reverse_lookup_filter`
 (#699)

Allow reverse_lookup_filter to append new codes to existing comments
---
 src/rime/gear/reverse_lookup_filter.cc | 9 +++++++--
 src/rime/gear/reverse_lookup_filter.h  | 1 +
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/rime/gear/reverse_lookup_filter.cc b/src/rime/gear/reverse_lookup_filter.cc
index 796f552af..70b144d9b 100644
--- a/src/rime/gear/reverse_lookup_filter.cc
+++ b/src/rime/gear/reverse_lookup_filter.cc
@@ -53,6 +53,7 @@ void ReverseLookupFilter::Initialize() {
   }
   if (Config* config = engine_->schema()->config()) {
     config->GetBool(name_space_ + "/overwrite_comment", &overwrite_comment_);
+    config->GetBool(name_space_ + "/append_comment", &append_comment_);
     comment_formatter_.Load(config->GetList(name_space_ + "/comment_format"));
   }
 }
@@ -69,7 +70,7 @@ an<Translation> ReverseLookupFilter::Apply(an<Translation> translation,
 }
 
 void ReverseLookupFilter::Process(const an<Candidate>& cand) {
-  if (!overwrite_comment_ && !cand->comment().empty())
+  if (!cand->comment().empty() && !(overwrite_comment_ || append_comment_))
     return;
   auto phrase = As<Phrase>(Candidate::GetGenuineCandidate(cand));
   if (!phrase)
@@ -78,7 +79,11 @@ void ReverseLookupFilter::Process(const an<Candidate>& cand) {
   if (rev_dict_->ReverseLookup(phrase->text(), &codes)) {
     comment_formatter_.Apply(&codes);
     if (!codes.empty()) {
-      phrase->set_comment(codes);
+      if (overwrite_comment_) {
+        phrase->set_comment(codes);
+      } else if (append_comment_) {
+        phrase->set_comment(cand->comment() + " " + codes);
+      }
     }
   }
 }
diff --git a/src/rime/gear/reverse_lookup_filter.h b/src/rime/gear/reverse_lookup_filter.h
index e297ed5db..28aadb3c3 100644
--- a/src/rime/gear/reverse_lookup_filter.h
+++ b/src/rime/gear/reverse_lookup_filter.h
@@ -34,6 +34,7 @@ class ReverseLookupFilter : public Filter, TagMatching {
   the<ReverseLookupDictionary> rev_dict_;
   // settings
   bool overwrite_comment_ = false;
+  bool append_comment_ = false;
   Projection comment_formatter_;
 };