From f6552263808d298e2696049887f23227274a8065 Mon Sep 17 00:00:00 2001
From: joostverburg <joostverburg@212acab6-be3b-0410-9dea-997c60f758d6>
Date: Sat, 29 Mar 2008 15:35:08 +0000
Subject: [PATCH] * New LangFile.nsh macro LANGFILE_INCLUDE_WITHDEFAULT to load
 language file with defaults being obtained from a default file. This replaces
 the LANGFILE_DEFAULT setting and makes it easier to use LangFile.nsh for
 multiple sets of languages file without having to care about the different
 LANGFILE_DEFAULT settings. * Allow LangFile.nsh to be included multiple
 times.

git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@5577 212acab6-be3b-0410-9dea-997c60f758d6
---
 Contrib/Modern UI 2/Localization.nsh | 15 +------
 Contrib/Modern UI/System.nsh         | 15 +------
 Include/LangFile.nsh                 | 60 +++++++++++++++++++++-------
 3 files changed, 48 insertions(+), 42 deletions(-)

diff --git a/Contrib/Modern UI 2/Localization.nsh b/Contrib/Modern UI 2/Localization.nsh
index caf35d2e..e40ff547 100644
--- a/Contrib/Modern UI 2/Localization.nsh	
+++ b/Contrib/Modern UI 2/Localization.nsh	
@@ -37,21 +37,8 @@ Localization
 
   LoadLanguageFile "${NSISDIR}\Contrib\Language files\${LANGUAGE}.nlf"
 
-  ;Set default language file for MUI and backup user setting
-  !ifdef LANGFILE_DEFAULT
-    !define MUI_LANGFILE_DEFAULT_TEMP "${LANGFILE_DEFAULT}"
-    !undef LANGFILE_DEFAULT
-  !endif
-  !define LANGFILE_DEFAULT "${NSISDIR}\Contrib\Language files\English.nsh"
-
   ;Include language file
-  !insertmacro LANGFILE_INCLUDE "${NSISDIR}\Contrib\Language files\${LANGUAGE}.nsh"
-
-  ;Restore user setting for default language file
-  !undef LANGFILE_DEFAULT
-  !ifdef MUI_LANGFILE_DEFAULT_TEMP
-    !define LANGFILE_DEFAULT "${MUI_LANGFILE_DEFAULT}"
-  !endif
+  !insertmacro LANGFILE_INCLUDE_WITHDEFAULT "${NSISDIR}\Contrib\Language files\${LANGUAGE}.nsh" "${NSISDIR}\Contrib\Language files\English.nsh"
 
   ;Add language to list of languages for selection dialog
   !ifndef MUI_LANGDLL_LANGUAGES
diff --git a/Contrib/Modern UI/System.nsh b/Contrib/Modern UI/System.nsh
index cde25a0f..4c61f9a6 100644
--- a/Contrib/Modern UI/System.nsh	
+++ b/Contrib/Modern UI/System.nsh	
@@ -2077,21 +2077,8 @@ Var MUI_TEMP2
 
   LoadLanguageFile "${NSISDIR}\Contrib\Language files\${LANGUAGE}.nlf"
 
-  ;Set default language file for MUI and backup user setting
-  !ifdef LANGFILE_DEFAULT
-    !define MUI_LANGFILE_DEFAULT_TEMP "${LANGFILE_DEFAULT}"
-    !undef LANGFILE_DEFAULT
-  !endif
-  !define LANGFILE_DEFAULT "${NSISDIR}\Contrib\Language files\English.nsh"
-
   ;Include language file
-  !insertmacro LANGFILE_INCLUDE "${NSISDIR}\Contrib\Language files\${LANGUAGE}.nsh"
-
-  ;Restore user setting for default language file
-  !undef LANGFILE_DEFAULT
-  !ifdef MUI_LANGFILE_DEFAULT_TEMP
-    !define LANGFILE_DEFAULT "${MUI_LANGFILE_DEFAULT}"
-  !endif
+  !insertmacro LANGFILE_INCLUDE_WITHDEFAULT "${NSISDIR}\Contrib\Language files\${LANGUAGE}.nsh" "${NSISDIR}\Contrib\Language files\English.nsh"
 
   ;Add language to list of languages for selection dialog  
   !ifndef MUI_LANGDLL_LANGUAGES
diff --git a/Include/LangFile.nsh b/Include/LangFile.nsh
index dca854a1..45b3a03b 100644
--- a/Include/LangFile.nsh
+++ b/Include/LangFile.nsh
@@ -2,16 +2,32 @@
 
 LangFile.nsh
 
-Header file to create langauge file that can be
+Header file to create langauge files that can be
 included with a single command.
 
-When LANGFILE_DEFAULT is set, missing strings will
-automatically be loaded from a default file.
-
 Copyright © 2008 Joost Verburg
 
+* Either LANGFILE_INCLUDE or LANGFILE_INCLUDE_WITHDEFAULT
+  can be called from the script to include a language
+  file.
+
+  - LANGFILE_INCLUDE takes the language file name as parameter.
+  - LANGFILE_INCLUDE_WITHDEFAULT takes as additional second
+    parameter the default language file to load missing strings
+    from.
+
+* A language file start with:
+  !insertmacro LANGFILE_EXT "English"
+  using the same name as the standard NSIS language file.
+
+* Language strings in the language file have the format:
+  ${LangFileString} LANGSTRING_NAME "Text"
+
 */
 
+!ifndef LANGFILE_INCLUDED
+!define LANGFILE_INCLUDED
+
 !macro LANGFILE_INCLUDE FILENAME
 
   ;Called from script: include a langauge file
@@ -26,23 +42,37 @@ Copyright 
   !include "${FILENAME}"
   !undef LANGFILE_SETNAMES
 
-  ;Include default language for missing strings
-
-  !ifdef LANGFILE_DEFAULT
-    !include "${LANGFILE_DEFAULT}"
-  !endif
-  
   ;Create language strings
 
   !undef LangFileString
   !define LangFileString "!insertmacro LANGFILE_LANGSTRING"
+  !include "${FILENAME}"
 
-  !ifdef LANGFILE_DEFAULT
-    !include "${LANGFILE_DEFAULT}"
-  !else
-    !include "${FILENAME}"
+!macroend
+
+!macro LANGFILE_INCLUDE_WITHDEFAULT FILENAME FILENAME_DEFAULT
+
+  ;Called from script: include a langauge file
+  ;Obtains missing strings from a default file
+
+  !ifdef LangFileString
+    !undef LangFileString
   !endif
 
+  !define LangFileString "!insertmacro LANGFILE_SETSTRING"
+
+  !define LANGFILE_SETNAMES
+  !include "${FILENAME}"
+  !undef LANGFILE_SETNAMES
+
+  ;Include default language for missing strings
+  !include "${FILENAME_DEFAULT}"
+  
+  ;Create language strings
+  !undef LangFileString
+  !define LangFileString "!insertmacro LANGFILE_LANGSTRING"
+  !include "${FILENAME_DEFAULT}"
+
 !macroend
 
 !macro LANGFILE IDNAME NAME
@@ -99,3 +129,5 @@ Copyright 
   !undef "${NAME}"
 
 !macroend
+
+!endif