automate update of sjis and euc-jp ver.

part of #17

Author: koron

.gitignore

@@ -1,3 +1,5 @@
 /src/po/*.po.bak
 /src/po/*.po.old
 /src/po/vim.pot
+/src/po/sjiscorr.exe
+/src/po/sjiscorr

runtime/lang/Makefile

@@ -0,0 +1,11 @@
+MASTER_MENU = menu_ja_jp.utf-8.vim
+
+default: menu_ja_jp.euc-jp.vim menu_japanese_japan.932.vim
+
+menu_ja_jp.euc-jp.vim: $(MASTER_MENU)
+	iconv -f utf-8 -t euc-jp $< | \
+	  sed -e 's/^scriptencoding utf-8/scriptencoding euc-jp/' -e 's/Menu Translations:\tJapanese (UTF-8)/Menu Translations:\tJapanese (EUC-JP)/' > $@
+
+menu_japanese_japan.932.vim: $(MASTER_MENU)
+	iconv -f utf-8 -t cp932 $< | \
+	  sed -e 's/^scriptencoding utf-8/scriptencoding cp932/' -e 's/Menu Translations:\tJapanese (UTF-8)/Menu Translations:\tJapanese (CP932)/' > $@

runtime/lang/menu_ja_jp.utf-8.vim

@@ -5,6 +5,7 @@
 " Last Change:		28-Jan-2016.
 "
 " Copyright (C) 2016 vim-jp (http://vim-jp.org/)
+"
 " THIS FILE IS DISTRIBUTED UNDER THE VIM LICENSE.
 
 " Quit when menu translations have already been done.

src/po/Makefile

@@ -0,0 +1,16 @@
+default: ja.sjis.po ja.euc-jp.po
+
+ja.sjis.po: ja.po
+	@$(MAKE) sjiscorr
+	rm -f ja.sjis.po
+	iconv -f utf-8 -t cp932 ja.po | ./sjiscorr > ja.sjis.po
+
+ja.euc-jp.po: ja.po
+	iconv -f utf-8 -t euc-jp ja.po | \
+		sed -e 's/charset=utf-8/charset=euc-jp/' -e 's/# Original translations/# Generated from ja.po, DO NOT EDIT/' > ja.euc-jp.po
+
+sjiscorr: sjiscorr.c
+	$(CC) -o sjiscorr sjiscorr.c
+
+clean:
+	rm -f sjiscorr sjiscorr.exe

src/po/ja.po

@@ -4,8 +4,11 @@
 # Do ":help credits" in Vim to see a list of people who contributed.
 #
 # Copyright (C) 2016 vim-jp (http://vim-jp.org/)
+#
 # THIS FILE IS DISTRIBUTED UNDER THE VIM LICENSE.
 #
+# Original translations.
+#
 msgid ""
 msgstr ""
 "Project-Id-Version: Vim 7.4\n"

src/po/sjiscorr.c

@@ -0,0 +1,49 @@
+/*
+ * Simplistic program to correct SJIS inside strings.  When a trail byte is a
+ * backslash it needs to be doubled.
+ * Public domain.
+ */
+#include <stdio.h>
+#include <string.h>
+
+	int
+main(argc, argv)
+	int	argc;
+	char	**argv;
+{
+	char buffer[BUFSIZ];
+	char *p;
+
+	while (fgets(buffer, BUFSIZ, stdin) != NULL)
+	{
+		for (p = buffer; *p != 0; p++)
+		{
+			if (strncmp(p, "charset=utf-8", 13) == 0)
+			{
+				fputs("charset=cp932", stdout);
+				p += 12;
+			}
+			else if (strncmp(p, "# Original translations", 23) == 0)
+			{
+				fputs("# generated from ja.po, DO NOT EDIT", stdout);
+				while (p[1] != '\n')
+					++p;
+			}
+			else if (*(unsigned char *)p == 0x81 && p[1] == '_')
+			{
+				putchar('\\');
+				++p;
+			}
+			else
+			{
+				if (*p & 0x80)
+				{
+					putchar(*p++);
+					if (*p == '\\')
+						putchar(*p);
+				}
+				putchar(*p);
+			}
+		}
+	}
+}