From 1d2ceb6bb16a8bc97f198a38b3403b3a7ec11672 Mon Sep 17 00:00:00 2001
From: Takuto Asakura <wtsnjp@gmail.com>
Date: Fri, 2 Feb 2024 11:52:15 +0900
Subject: [PATCH] better locale unmatch penalty (fix #102, fix #104)

- give locale unmatch penalty also for lang config missing cases
- english documents should not get this penalty. They do not have
  file lang info in most cases
---
 script/texdoclib-score.tlu | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/script/texdoclib-score.tlu b/script/texdoclib-score.tlu
index 24d7c40..11befc7 100644
--- a/script/texdoclib-score.tlu
+++ b/script/texdoclib-score.tlu
@@ -212,7 +212,7 @@ local function set_score(df, original_kw)
 
     -- bonus for locale
     local config_lang = texdoc.config.get_value('lang')
-    if not is_alias and config_lang ~= nil then
+    if not is_alias then
         local file_lang = df.lang
 
         if not file_lang then
@@ -220,10 +220,12 @@ local function set_score(df, original_kw)
             file_lang = texdoc.const.lang_codes[file_lang]
         end
 
-        if config_lang == file_lang then
+        if config_lang ~= nil and config_lang == file_lang then
             score = score + 1
             dbg_score('Locale match bonus: +1.0')
-        elseif file_lang ~= nil then
+        elseif file_lang ~= nil and file_lang ~= 'en' then
+            -- normally, english documents do not have file_lang,
+            -- but sometimes the catalog includes en info (e.g., geometry)
             score = score - 0.1
             dbg_score('Locale unmatch: -0.1')
         end