diff --git a/locale/en/LC_MESSAGES/danmaku2ass.mo b/locale/en/LC_MESSAGES/danmaku2ass.mo
index f6a28d9..17490be 100644
Binary files a/locale/en/LC_MESSAGES/danmaku2ass.mo and b/locale/en/LC_MESSAGES/danmaku2ass.mo differ
diff --git a/locale/en/LC_MESSAGES/danmaku2ass.po b/locale/en/LC_MESSAGES/danmaku2ass.po
index 873891a..d79fe60 100644
--- a/locale/en/LC_MESSAGES/danmaku2ass.po
+++ b/locale/en/LC_MESSAGES/danmaku2ass.po
@@ -2,110 +2,133 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Danmaku2ASS\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2014-12-21 00:44+0800\n"
+"POT-Creation-Date: 2016-08-13 19:57+0800\n"
 "Last-Translator: Star Brilliant <m13253@hotmail.com>\n"
 "Language: en\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 
-#: danmaku2ass.py:143 danmaku2ass.py:182 danmaku2ass.py:212
+#: danmaku2ass.py:147 danmaku2ass.py:193 danmaku2ass.py:243
 #, python-format
 msgid "Invalid comment: %s"
 msgstr "Invalid comment: %s"
 
-#: danmaku2ass.py:162 danmaku2ass.py:196 danmaku2ass.py:239 danmaku2ass.py:323
-#: danmaku2ass.py:325 danmaku2ass.py:439 danmaku2ass.py:483 danmaku2ass.py:585
+#: danmaku2ass.py:170 danmaku2ass.py:207 danmaku2ass.py:227 danmaku2ass.py:327
+#: danmaku2ass.py:329 danmaku2ass.py:443 danmaku2ass.py:543
 #, python-format
 msgid "Invalid comment: %r"
 msgstr "Invalid comment: %r"
 
-#: danmaku2ass.py:769 danmaku2ass.py:818
+#: danmaku2ass.py:731 danmaku2ass.py:800
 msgid "(FONT) sans-serif"
 msgstr "(FONT) Helvetica"
 
-#: danmaku2ass.py:798
+#: danmaku2ass.py:739
+#, python-format
+msgid "Invalid regular expression: %s"
+msgstr "Invalid regular expression: %s"
+
+#: danmaku2ass.py:772
+#, python-format
+msgid "Failed to detect comment file format: %s"
+msgstr "Failed to detect comment file format: %s"
+
+#: danmaku2ass.py:778
 #, python-format
 msgid "Unknown comment file format: %s"
 msgstr "Unknown comment file format: %s"
 
-#: danmaku2ass.py:816
+#: danmaku2ass.py:797
+msgid "FORMAT"
+msgstr "FORMAT"
+
+#: danmaku2ass.py:797
+#, python-format
+msgid "Format of input file (autodetect|%s) [default: autodetect]"
+msgstr "Format of input file (autodetect|%s) [default: autodetect]"
+
+#: danmaku2ass.py:798
 msgid "OUTPUT"
 msgstr "OUTPUT"
 
-#: danmaku2ass.py:816
+#: danmaku2ass.py:798
 msgid "Output file"
 msgstr "Output file"
 
-#: danmaku2ass.py:817
+#: danmaku2ass.py:799
 msgid "WIDTHxHEIGHT"
 msgstr "WIDTHxHEIGHT"
 
-#: danmaku2ass.py:817
+#: danmaku2ass.py:799
 msgid "Stage size in pixels"
 msgstr "Stage size in pixels"
 
-#: danmaku2ass.py:818
+#: danmaku2ass.py:800
 msgid "FONT"
 msgstr "FONT"
 
-#: danmaku2ass.py:818
+#: danmaku2ass.py:800
 #, python-format
 msgid "Specify font face [default: %s]"
 msgstr "Specify font face [default: %s]"
 
-#: danmaku2ass.py:819
+#: danmaku2ass.py:801
 msgid "SIZE"
 msgstr "SIZE"
 
-#: danmaku2ass.py:819
+#: danmaku2ass.py:801
 #, python-format
 msgid "Default font size [default: %s]"
 msgstr "Default font size [default: %s]"
 
-#: danmaku2ass.py:820
+#: danmaku2ass.py:802
 msgid "ALPHA"
 msgstr "ALPHA"
 
-#: danmaku2ass.py:820
+#: danmaku2ass.py:802
 msgid "Text opacity"
 msgstr "Text opacity"
 
-#: danmaku2ass.py:821 danmaku2ass.py:822
+#: danmaku2ass.py:803 danmaku2ass.py:804
 msgid "SECONDS"
 msgstr "SECONDS"
 
-#: danmaku2ass.py:821
+#: danmaku2ass.py:803
 #, python-format
 msgid "Duration of scrolling comment display [default: %s]"
 msgstr "Duration of scrolling comment display [default: %s]"
 
-#: danmaku2ass.py:822
+#: danmaku2ass.py:804
 #, python-format
 msgid "Duration of still comment display [default: %s]"
 msgstr "Duration of still comment display [default: %s]"
 
-#: danmaku2ass.py:823
+#: danmaku2ass.py:805
+msgid "Regular expression to filter comments"
+msgstr "Regular expression to filter comments"
+
+#: danmaku2ass.py:806
 msgid "HEIGHT"
 msgstr "HEIGHT"
 
-#: danmaku2ass.py:823
+#: danmaku2ass.py:806
 msgid "Reserve blank on the bottom of the stage"
 msgstr "Reserve blank on the bottom of the stage"
 
-#: danmaku2ass.py:824
+#: danmaku2ass.py:807
 msgid "Reduce the amount of comments if stage is full"
 msgstr "Reduce the amount of comments if stage is full"
 
-#: danmaku2ass.py:825
+#: danmaku2ass.py:808
 msgid "FILE"
 msgstr "FILE"
 
-#: danmaku2ass.py:825
+#: danmaku2ass.py:808
 msgid "Comment file to be processed"
 msgstr "Comment file to be processed"
 
-#: danmaku2ass.py:832
+#: danmaku2ass.py:815
 #, python-format
 msgid "Invalid stage size: %r"
 msgstr "Invalid stage size: %r"
diff --git a/locale/ja/LC_MESSAGES/danmaku2ass.mo b/locale/ja/LC_MESSAGES/danmaku2ass.mo
index f771861..7ca02ca 100644
Binary files a/locale/ja/LC_MESSAGES/danmaku2ass.mo and b/locale/ja/LC_MESSAGES/danmaku2ass.mo differ
diff --git a/locale/ja/LC_MESSAGES/danmaku2ass.po b/locale/ja/LC_MESSAGES/danmaku2ass.po
index f4e84e2..35c0f19 100644
--- a/locale/ja/LC_MESSAGES/danmaku2ass.po
+++ b/locale/ja/LC_MESSAGES/danmaku2ass.po
@@ -2,110 +2,133 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Danmaku2ASS\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2014-12-21 00:47+0800\n"
+"POT-Creation-Date: 2016-08-13 19:57+0800\n"
 "Last-Translator: Star Brilliant <m13253@hotmail.com>\n"
 "Language: ja\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 
-#: danmaku2ass.py:143 danmaku2ass.py:182 danmaku2ass.py:212
+#: danmaku2ass.py:147 danmaku2ass.py:193 danmaku2ass.py:243
 #, python-format
 msgid "Invalid comment: %s"
 msgstr "無効なコメント：%s"
 
-#: danmaku2ass.py:162 danmaku2ass.py:196 danmaku2ass.py:239 danmaku2ass.py:323
-#: danmaku2ass.py:325 danmaku2ass.py:439 danmaku2ass.py:483 danmaku2ass.py:585
+#: danmaku2ass.py:170 danmaku2ass.py:207 danmaku2ass.py:227 danmaku2ass.py:327
+#: danmaku2ass.py:329 danmaku2ass.py:443 danmaku2ass.py:543
 #, python-format
 msgid "Invalid comment: %r"
 msgstr "無効なコメント：%r"
 
-#: danmaku2ass.py:769 danmaku2ass.py:818
+#: danmaku2ass.py:731 danmaku2ass.py:800
 msgid "(FONT) sans-serif"
 msgstr "(FONT) MS PGothic"
 
-#: danmaku2ass.py:798
+#: danmaku2ass.py:739
+#, python-format
+msgid "Invalid regular expression: %s"
+msgstr "無効な正規表現"
+
+#: danmaku2ass.py:772
+#, python-format
+msgid "Failed to detect comment file format: %s"
+msgstr "コメントファイル形式を検出することができませんでした：%s"
+
+#: danmaku2ass.py:778
 #, python-format
 msgid "Unknown comment file format: %s"
 msgstr "未知のコメントファイル形式：%s"
 
-#: danmaku2ass.py:816
+#: danmaku2ass.py:797
+msgid "FORMAT"
+msgstr "形式"
+
+#: danmaku2ass.py:797
+#, python-format
+msgid "Format of input file (autodetect|%s) [default: autodetect]"
+msgstr "入力ファイルの形式 (autodetect|%s) [default: autodetect]"
+
+#: danmaku2ass.py:798
 msgid "OUTPUT"
 msgstr "出力"
 
-#: danmaku2ass.py:816
+#: danmaku2ass.py:798
 msgid "Output file"
 msgstr "出力ファイル"
 
-#: danmaku2ass.py:817
-msgid "Stage size in pixels"
-msgstr "ピクセル単位でステージのサイズ"
-
-#: danmaku2ass.py:817
+#: danmaku2ass.py:799
 msgid "WIDTHxHEIGHT"
 msgstr "幅x高"
 
-#: danmaku2ass.py:818
+#: danmaku2ass.py:799
+msgid "Stage size in pixels"
+msgstr "ピクセル単位でステージのサイズ"
+
+#: danmaku2ass.py:800
 msgid "FONT"
 msgstr "フォント"
 
-#: danmaku2ass.py:818
+#: danmaku2ass.py:800
 #, python-format
 msgid "Specify font face [default: %s]"
 msgstr "フォントを指定する [デフォルト: %s]"
 
-#: danmaku2ass.py:819
+#: danmaku2ass.py:801
+msgid "SIZE"
+msgstr "サイズ"
+
+#: danmaku2ass.py:801
 #, python-format
 msgid "Default font size [default: %s]"
 msgstr "デフォルトのフォントサイズ [デフォルト: %s]"
 
-#: danmaku2ass.py:819
-msgid "SIZE"
-msgstr "サイズ"
-
-#: danmaku2ass.py:820
+#: danmaku2ass.py:802
 msgid "ALPHA"
 msgstr "アルファ"
 
-#: danmaku2ass.py:820
+#: danmaku2ass.py:802
 msgid "Text opacity"
 msgstr "テキストの不透明度"
 
-#: danmaku2ass.py:821
+#: danmaku2ass.py:803 danmaku2ass.py:804
+msgid "SECONDS"
+msgstr "秒数"
+
+#: danmaku2ass.py:803
 #, python-format
 msgid "Duration of scrolling comment display [default: %s]"
 msgstr "運動コメント表示の時間 [デフォルト: %s]"
 
-#: danmaku2ass.py:821 danmaku2ass.py:822
-msgid "SECONDS"
-msgstr "秒数"
-
-#: danmaku2ass.py:822
+#: danmaku2ass.py:804
 #, python-format
 msgid "Duration of still comment display [default: %s]"
 msgstr "静止コメント表示の時間 [デフォルト: %s]"
 
-#: danmaku2ass.py:823
+#: danmaku2ass.py:805
+msgid "Regular expression to filter comments"
+msgstr "コメントをフィルタリングする正規表現"
+
+#: danmaku2ass.py:806
 msgid "HEIGHT"
 msgstr "高度"
 
-#: danmaku2ass.py:823
+#: danmaku2ass.py:806
 msgid "Reserve blank on the bottom of the stage"
 msgstr "ステージの下にブランクを予備する"
 
-#: danmaku2ass.py:824
+#: danmaku2ass.py:807
 msgid "Reduce the amount of comments if stage is full"
 msgstr "ステージがいっぱいになったのときにコメントの量を減らす"
 
-#: danmaku2ass.py:825
-msgid "Comment file to be processed"
-msgstr "ファイルが処理されるコメント"
-
-#: danmaku2ass.py:825
+#: danmaku2ass.py:808
 msgid "FILE"
 msgstr "ファイル"
 
-#: danmaku2ass.py:832
+#: danmaku2ass.py:808
+msgid "Comment file to be processed"
+msgstr "ファイルが処理されるコメント"
+
+#: danmaku2ass.py:815
 #, python-format
 msgid "Invalid stage size: %r"
 msgstr "無効なステージサイズ：%r"
diff --git a/locale/zh_CN/LC_MESSAGES/danmaku2ass.mo b/locale/zh_CN/LC_MESSAGES/danmaku2ass.mo
index 14046cd..3a41f4c 100644
Binary files a/locale/zh_CN/LC_MESSAGES/danmaku2ass.mo and b/locale/zh_CN/LC_MESSAGES/danmaku2ass.mo differ
diff --git a/locale/zh_CN/LC_MESSAGES/danmaku2ass.po b/locale/zh_CN/LC_MESSAGES/danmaku2ass.po
index e043d58..a6b2e2f 100644
--- a/locale/zh_CN/LC_MESSAGES/danmaku2ass.po
+++ b/locale/zh_CN/LC_MESSAGES/danmaku2ass.po
@@ -2,110 +2,133 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Danmaku2ASS\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2014-12-21 00:47+0800\n"
+"POT-Creation-Date: 2016-08-13 19:57+0800\n"
 "Last-Translator: Star Brilliant <m13253@hotmail.com>\n"
 "Language: zh_CN\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 
-#: danmaku2ass.py:143 danmaku2ass.py:182 danmaku2ass.py:212
+#: danmaku2ass.py:147 danmaku2ass.py:193 danmaku2ass.py:243
 #, python-format
 msgid "Invalid comment: %s"
 msgstr "无效弹幕：%s"
 
-#: danmaku2ass.py:162 danmaku2ass.py:196 danmaku2ass.py:239 danmaku2ass.py:323
-#: danmaku2ass.py:325 danmaku2ass.py:439 danmaku2ass.py:483 danmaku2ass.py:585
+#: danmaku2ass.py:170 danmaku2ass.py:207 danmaku2ass.py:227 danmaku2ass.py:327
+#: danmaku2ass.py:329 danmaku2ass.py:443 danmaku2ass.py:543
 #, python-format
 msgid "Invalid comment: %r"
 msgstr "无效弹幕：%r"
 
-#: danmaku2ass.py:769 danmaku2ass.py:818
+#: danmaku2ass.py:731 danmaku2ass.py:800
 msgid "(FONT) sans-serif"
 msgstr "(FONT) SimHei"
 
-#: danmaku2ass.py:798
+#: danmaku2ass.py:739
+#, python-format
+msgid "Invalid regular expression: %s"
+msgstr "无效的正则表达式：%s"
+
+#: danmaku2ass.py:772
+#, python-format
+msgid "Failed to detect comment file format: %s"
+msgstr "未知的弹幕文件格式：%s"
+
+#: danmaku2ass.py:778
 #, python-format
 msgid "Unknown comment file format: %s"
 msgstr "未知的弹幕文件格式：%s"
 
-#: danmaku2ass.py:816
+#: danmaku2ass.py:797
+msgid "FORMAT"
+msgstr "格式"
+
+#: danmaku2ass.py:797
+#, python-format
+msgid "Format of input file (autodetect|%s) [default: autodetect]"
+msgstr "输入文件格式 (autodetect|%s) [默认: autodetect]"
+
+#: danmaku2ass.py:798
 msgid "OUTPUT"
 msgstr "输出"
 
-#: danmaku2ass.py:816
+#: danmaku2ass.py:798
 msgid "Output file"
 msgstr "输出文件"
 
-#: danmaku2ass.py:817
-msgid "Stage size in pixels"
-msgstr "舞台尺寸的像素数目"
-
-#: danmaku2ass.py:817
+#: danmaku2ass.py:799
 msgid "WIDTHxHEIGHT"
 msgstr "宽x高"
 
-#: danmaku2ass.py:818
+#: danmaku2ass.py:799
+msgid "Stage size in pixels"
+msgstr "舞台尺寸的像素数目"
+
+#: danmaku2ass.py:800
 msgid "FONT"
 msgstr "字体"
 
-#: danmaku2ass.py:818
+#: danmaku2ass.py:800
 #, python-format
 msgid "Specify font face [default: %s]"
 msgstr "指定字体名称 [默认: %s]"
 
-#: danmaku2ass.py:819
+#: danmaku2ass.py:801
+msgid "SIZE"
+msgstr "尺寸"
+
+#: danmaku2ass.py:801
 #, python-format
 msgid "Default font size [default: %s]"
 msgstr "默认字号 [默认: %s]"
 
-#: danmaku2ass.py:819
-msgid "SIZE"
-msgstr "尺寸"
-
-#: danmaku2ass.py:820
+#: danmaku2ass.py:802
 msgid "ALPHA"
 msgstr "ALPHA"
 
-#: danmaku2ass.py:820
+#: danmaku2ass.py:802
 msgid "Text opacity"
 msgstr "文字不透明度"
 
-#: danmaku2ass.py:821
+#: danmaku2ass.py:803 danmaku2ass.py:804
+msgid "SECONDS"
+msgstr "秒数"
+
+#: danmaku2ass.py:803
 #, python-format
 msgid "Duration of scrolling comment display [default: %s]"
 msgstr "滚动弹幕显示时长 [默认: %s]"
 
-#: danmaku2ass.py:821 danmaku2ass.py:822
-msgid "SECONDS"
-msgstr "秒数"
-
-#: danmaku2ass.py:822
+#: danmaku2ass.py:804
 #, python-format
 msgid "Duration of still comment display [default: %s]"
 msgstr "静止弹幕显示时长 [默认: %s]"
 
-#: danmaku2ass.py:823
+#: danmaku2ass.py:805
+msgid "Regular expression to filter comments"
+msgstr "过滤弹幕的正则表达式"
+
+#: danmaku2ass.py:806
 msgid "HEIGHT"
 msgstr "高度"
 
-#: danmaku2ass.py:823
+#: danmaku2ass.py:806
 msgid "Reserve blank on the bottom of the stage"
 msgstr "在舞台底部预留空位"
 
-#: danmaku2ass.py:824
+#: danmaku2ass.py:807
 msgid "Reduce the amount of comments if stage is full"
 msgstr "在舞台满时减少弹幕数量"
 
-#: danmaku2ass.py:825
-msgid "Comment file to be processed"
-msgstr "将要处理的弹幕文件"
-
-#: danmaku2ass.py:825
+#: danmaku2ass.py:808
 msgid "FILE"
 msgstr "文件"
 
-#: danmaku2ass.py:832
+#: danmaku2ass.py:808
+msgid "Comment file to be processed"
+msgstr "将要处理的弹幕文件"
+
+#: danmaku2ass.py:815
 #, python-format
 msgid "Invalid stage size: %r"
 msgstr "无效舞台尺寸：%r"
diff --git a/locale/zh_TW/LC_MESSAGES/danmaku2ass.mo b/locale/zh_TW/LC_MESSAGES/danmaku2ass.mo
index a61efec..e883687 100644
Binary files a/locale/zh_TW/LC_MESSAGES/danmaku2ass.mo and b/locale/zh_TW/LC_MESSAGES/danmaku2ass.mo differ
diff --git a/locale/zh_TW/LC_MESSAGES/danmaku2ass.po b/locale/zh_TW/LC_MESSAGES/danmaku2ass.po
index a4a6edd..fce02eb 100644
--- a/locale/zh_TW/LC_MESSAGES/danmaku2ass.po
+++ b/locale/zh_TW/LC_MESSAGES/danmaku2ass.po
@@ -2,110 +2,133 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Danmaku2ASS\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2014-12-21 00:47+0800\n"
+"POT-Creation-Date: 2016-08-13 19:57+0800\n"
 "Last-Translator: Star Brilliant <m13253@hotmail.com>\n"
 "Language: zh_TW\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 
-#: danmaku2ass.py:143 danmaku2ass.py:182 danmaku2ass.py:212
+#: danmaku2ass.py:147 danmaku2ass.py:193 danmaku2ass.py:243
 #, python-format
 msgid "Invalid comment: %s"
 msgstr "無效彈幕：%s"
 
-#: danmaku2ass.py:162 danmaku2ass.py:196 danmaku2ass.py:239 danmaku2ass.py:323
-#: danmaku2ass.py:325 danmaku2ass.py:439 danmaku2ass.py:483 danmaku2ass.py:585
+#: danmaku2ass.py:170 danmaku2ass.py:207 danmaku2ass.py:227 danmaku2ass.py:327
+#: danmaku2ass.py:329 danmaku2ass.py:443 danmaku2ass.py:543
 #, python-format
 msgid "Invalid comment: %r"
 msgstr "無效彈幕：%r"
 
-#: danmaku2ass.py:769 danmaku2ass.py:818
+#: danmaku2ass.py:731 danmaku2ass.py:800
 msgid "(FONT) sans-serif"
 msgstr "(FONT) Microsoft JhengHei"
 
-#: danmaku2ass.py:798
+#: danmaku2ass.py:739
+#, python-format
+msgid "Invalid regular expression: %s"
+msgstr "無效正規表示式：%s"
+
+#: danmaku2ass.py:772
+#, python-format
+msgid "Failed to detect comment file format: %s"
+msgstr "判斷彈幕檔案格式失敗：%s"
+
+#: danmaku2ass.py:778
 #, python-format
 msgid "Unknown comment file format: %s"
 msgstr "未知的彈幕檔案格式：%s"
 
-#: danmaku2ass.py:816
+#: danmaku2ass.py:797
+msgid "FORMAT"
+msgstr "格式"
+
+#: danmaku2ass.py:797
+#, python-format
+msgid "Format of input file (autodetect|%s) [default: autodetect]"
+msgstr "輸入文件格式 (autodetect|%s) [預設: autodetect]"
+
+#: danmaku2ass.py:798
 msgid "OUTPUT"
 msgstr "輸出"
 
-#: danmaku2ass.py:816
+#: danmaku2ass.py:798
 msgid "Output file"
 msgstr "輸出檔案"
 
-#: danmaku2ass.py:817
-msgid "Stage size in pixels"
-msgstr "舞臺尺寸的畫素數目"
-
-#: danmaku2ass.py:817
+#: danmaku2ass.py:799
 msgid "WIDTHxHEIGHT"
 msgstr "寬x高"
 
-#: danmaku2ass.py:818
+#: danmaku2ass.py:799
+msgid "Stage size in pixels"
+msgstr "舞臺尺寸的畫素數目"
+
+#: danmaku2ass.py:800
 msgid "FONT"
 msgstr "字型"
 
-#: danmaku2ass.py:818
+#: danmaku2ass.py:800
 #, python-format
 msgid "Specify font face [default: %s]"
 msgstr "指定字型名稱 [預設: %s]"
 
-#: danmaku2ass.py:819
+#: danmaku2ass.py:801
+msgid "SIZE"
+msgstr "尺寸"
+
+#: danmaku2ass.py:801
 #, python-format
 msgid "Default font size [default: %s]"
 msgstr "預設字型大小 [預設: %s]"
 
-#: danmaku2ass.py:819
-msgid "SIZE"
-msgstr "尺寸"
-
-#: danmaku2ass.py:820
+#: danmaku2ass.py:802
 msgid "ALPHA"
 msgstr "ALPHA"
 
-#: danmaku2ass.py:820
+#: danmaku2ass.py:802
 msgid "Text opacity"
 msgstr "文字不透明度"
 
-#: danmaku2ass.py:821
+#: danmaku2ass.py:803 danmaku2ass.py:804
+msgid "SECONDS"
+msgstr "秒數"
+
+#: danmaku2ass.py:803
 #, python-format
 msgid "Duration of scrolling comment display [default: %s]"
 msgstr "滾動彈幕顯示時長 [預設: %s]"
 
-#: danmaku2ass.py:821 danmaku2ass.py:822
-msgid "SECONDS"
-msgstr "秒數"
-
-#: danmaku2ass.py:822
+#: danmaku2ass.py:804
 #, python-format
 msgid "Duration of still comment display [default: %s]"
 msgstr "靜止彈幕顯示時長 [預設: %s]"
 
-#: danmaku2ass.py:823
+#: danmaku2ass.py:805
+msgid "Regular expression to filter comments"
+msgstr "過濾彈幕的正規表示式"
+
+#: danmaku2ass.py:806
 msgid "HEIGHT"
 msgstr "高度"
 
-#: danmaku2ass.py:823
+#: danmaku2ass.py:806
 msgid "Reserve blank on the bottom of the stage"
 msgstr "在舞臺底部預留空位"
 
-#: danmaku2ass.py:824
+#: danmaku2ass.py:807
 msgid "Reduce the amount of comments if stage is full"
 msgstr "在舞臺滿時減少彈幕數量"
 
-#: danmaku2ass.py:825
-msgid "Comment file to be processed"
-msgstr "將要處理的彈幕檔案"
-
-#: danmaku2ass.py:825
+#: danmaku2ass.py:808
 msgid "FILE"
 msgstr "檔案"
 
-#: danmaku2ass.py:832
+#: danmaku2ass.py:808
+msgid "Comment file to be processed"
+msgstr "將要處理的彈幕檔案"
+
+#: danmaku2ass.py:815
 #, python-format
 msgid "Invalid stage size: %r"
 msgstr "無效舞臺尺寸：%r"