lib/icu/Collate: move IcuCaseFold() to CaseFold.cxx

4 files changed, 143 insertions, 74 deletions

diff --git a/src/lib/icu/CaseFold.cxx b/src/lib/icu/CaseFold.cxx
new file mode 100644
index 000000000..ed4552d1c
--- /dev/null
+++ b/src/lib/icu/CaseFold.cxx
@@ -0,0 +1,111 @@
+/*
+ * Copyright 2003-2017 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "CaseFold.hxx"
+#include "util/AllocatedString.hxx"
+
+#ifdef HAVE_ICU
+#include "Util.hxx"
+#include "util/AllocatedArray.hxx"
+#include "util/ConstBuffer.hxx"
+
+#include <unicode/ucol.h>
+#include <unicode/ustring.h>
+#else
+#include <algorithm>
+#include <ctype.h>
+#endif
+
+#ifdef WIN32
+#include "Win32.hxx"
+#include <windows.h>
+#endif
+
+#include <memory>
+#include <stdexcept>
+
+#include <assert.h>
+#include <string.h>
+
+AllocatedString<>
+IcuCaseFold(const char *src)
+try {
+#ifdef HAVE_ICU
+#if !CLANG_CHECK_VERSION(3,6)
+	/* disabled on clang due to -Wtautological-pointer-compare */
+	assert(src != nullptr);
+#endif
+
+	const auto u = UCharFromUTF8(src);
+	if (u.IsNull())
+		return AllocatedString<>::Duplicate(src);
+
+	AllocatedArray<UChar> folded(u.size() * 2u);
+
+	UErrorCode error_code = U_ZERO_ERROR;
+	size_t folded_length = u_strFoldCase(folded.begin(), folded.size(),
+					     u.begin(), u.size(),
+					     U_FOLD_CASE_DEFAULT,
+					     &error_code);
+	if (folded_length == 0 || error_code != U_ZERO_ERROR)
+		return AllocatedString<>::Duplicate(src);
+
+	folded.SetSize(folded_length);
+	return UCharToUTF8({folded.begin(), folded.size()});
+
+#elif defined(WIN32)
+	const auto u = MultiByteToWideChar(CP_UTF8, src);
+
+	const int size = LCMapStringEx(LOCALE_NAME_INVARIANT,
+				       LCMAP_SORTKEY|LINGUISTIC_IGNORECASE,
+				       u.c_str(), -1, nullptr, 0,
+				       nullptr, nullptr, 0);
+	if (size <= 0)
+		return AllocatedString<>::Duplicate(src);
+
+	std::unique_ptr<wchar_t[]> buffer(new wchar_t[size]);
+	if (LCMapStringEx(LOCALE_NAME_INVARIANT,
+			  LCMAP_SORTKEY|LINGUISTIC_IGNORECASE,
+			  u.c_str(), -1, buffer.get(), size,
+			  nullptr, nullptr, 0) <= 0)
+		return AllocatedString<>::Duplicate(src);
+
+	return WideCharToMultiByte(CP_UTF8, buffer.get());
+
+#else
+	size_t size = strlen(src) + 1;
+	std::unique_ptr<char[]> buffer(new char[size]);
+	size_t nbytes = strxfrm(buffer.get(), src, size);
+	if (nbytes >= size) {
+		/* buffer too small - reallocate and try again */
+		buffer.reset();
+		size = nbytes + 1;
+		buffer.reset(new char[size]);
+		nbytes = strxfrm(buffer.get(), src, size);
+	}
+
+	assert(nbytes < size);
+	assert(buffer[nbytes] == 0);
+
+	return AllocatedString<>::Donate(buffer.release());
+#endif
+} catch (const std::runtime_error &) {
+	return AllocatedString<>::Duplicate(src);
+}
diff --git a/src/lib/icu/CaseFold.hxx b/src/lib/icu/CaseFold.hxx
new file mode 100644
index 000000000..7d13a6e2a
--- /dev/null
+++ b/src/lib/icu/CaseFold.hxx
@@ -0,0 +1,32 @@
+/*
+ * Copyright 2003-2017 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_ICU_CASE_FOLD_HXX
+#define MPD_ICU_CASE_FOLD_HXX
+
+#include "check.h"
+#include "Compiler.h"
+
+template<typename T> class AllocatedString;
+
+gcc_nonnull_all
+AllocatedString<char>
+IcuCaseFold(const char *src);
+
+#endif
diff --git a/src/lib/icu/Collate.cxx b/src/lib/icu/Collate.cxx
index 9238e74b0..f16cba597 100644
--- a/src/lib/icu/Collate.cxx
+++ b/src/lib/icu/Collate.cxx
@@ -23,8 +23,6 @@
 
 #ifdef HAVE_ICU
 #include "Util.hxx"
-#include "util/AllocatedArray.hxx"
-#include "util/ConstBuffer.hxx"
 #include "util/RuntimeError.hxx"
 
 #include <unicode/ucol.h>
@@ -141,69 +139,3 @@ IcuCollate(const char *a, const char *b) noexcept
 	return strcoll(a, b);
 #endif
 }
-
-AllocatedString<>
-IcuCaseFold(const char *src)
-try {
-#ifdef HAVE_ICU
-#if !CLANG_CHECK_VERSION(3,6)
-	/* disabled on clang due to -Wtautological-pointer-compare */
-	assert(src != nullptr);
-#endif
-
-	const auto u = UCharFromUTF8(src);
-	if (u.IsNull())
-		return AllocatedString<>::Duplicate(src);
-
-	AllocatedArray<UChar> folded(u.size() * 2u);
-
-	UErrorCode error_code = U_ZERO_ERROR;
-	size_t folded_length = u_strFoldCase(folded.begin(), folded.size(),
-					     u.begin(), u.size(),
-					     U_FOLD_CASE_DEFAULT,
-					     &error_code);
-	if (folded_length == 0 || error_code != U_ZERO_ERROR)
-		return AllocatedString<>::Duplicate(src);
-
-	folded.SetSize(folded_length);
-	return UCharToUTF8({folded.begin(), folded.size()});
-
-#elif defined(WIN32)
-	const auto u = MultiByteToWideChar(CP_UTF8, src);
-
-	const int size = LCMapStringEx(LOCALE_NAME_INVARIANT,
-				       LCMAP_SORTKEY|LINGUISTIC_IGNORECASE,
-				       u.c_str(), -1, nullptr, 0,
-				       nullptr, nullptr, 0);
-	if (size <= 0)
-		return AllocatedString<>::Duplicate(src);
-
-	std::unique_ptr<wchar_t[]> buffer(new wchar_t[size]);
-	if (LCMapStringEx(LOCALE_NAME_INVARIANT,
-			  LCMAP_SORTKEY|LINGUISTIC_IGNORECASE,
-			  u.c_str(), -1, buffer.get(), size,
-			  nullptr, nullptr, 0) <= 0)
-		return AllocatedString<>::Duplicate(src);
-
-	return WideCharToMultiByte(CP_UTF8, buffer.get());
-
-#else
-	size_t size = strlen(src) + 1;
-	std::unique_ptr<char[]> buffer(new char[size]);
-	size_t nbytes = strxfrm(buffer.get(), src, size);
-	if (nbytes >= size) {
-		/* buffer too small - reallocate and try again */
-		buffer.reset();
-		size = nbytes + 1;
-		buffer.reset(new char[size]);
-		nbytes = strxfrm(buffer.get(), src, size);
-	}
-
-	assert(nbytes < size);
-	assert(buffer[nbytes] == 0);
-
-	return AllocatedString<>::Donate(buffer.release());
-#endif
-} catch (const std::runtime_error &) {
-	return AllocatedString<>::Duplicate(src);
-}
diff --git a/src/lib/icu/Collate.hxx b/src/lib/icu/Collate.hxx
index d6cfcb764..d22fa6870 100644
--- a/src/lib/icu/Collate.hxx
+++ b/src/lib/icu/Collate.hxx
@@ -23,8 +23,6 @@
 #include "check.h"
 #include "Compiler.h"
 
-template<typename T> class AllocatedString;
-
 /**
  * Throws #std::runtime_error on error.
  */
@@ -38,8 +36,4 @@ gcc_pure gcc_nonnull_all
 int
 IcuCollate(const char *a, const char *b) noexcept;
 
-gcc_nonnull_all
-AllocatedString<char>
-IcuCaseFold(const char *src);
-
 #endif