From 5262f832018923ecc8ccd25bedecbd5a291a563f Mon Sep 17 00:00:00 2001
From: Neil <nyamatongwe@gmail.com>
Date: Thu, 11 Jul 2013 10:43:40 +1000
Subject: Include case conversion data in Scintilla so that all platforms will
 perform case conversion of Unicode text in accordance with Unicode.

---
 src/CaseFolder.cxx | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 src/CaseFolder.cxx

(limited to 'src/CaseFolder.cxx')

diff --git a/src/CaseFolder.cxx b/src/CaseFolder.cxx
new file mode 100644
index 000000000..44a94da6f
--- /dev/null
+++ b/src/CaseFolder.cxx
@@ -0,0 +1,68 @@
+// Scintilla source code edit control
+/** @file CaseFolder.cxx
+ ** Classes for case folding.
+ **/
+// Copyright 1998-2013 by Neil Hodgson <neilh@scintilla.org>
+// The License.txt file describes the conditions under which this software may be distributed.
+
+#include <vector>
+#include <algorithm>
+
+#include "CaseConvert.h"
+#include "UniConversion.h"
+#include "CaseFolder.h"
+
+#ifdef SCI_NAMESPACE
+using namespace Scintilla;
+#endif
+
+CaseFolder::~CaseFolder() {
+}
+
+CaseFolderTable::CaseFolderTable() {
+	for (size_t iChar=0; iChar<sizeof(mapping); iChar++) {
+		mapping[iChar] = static_cast<char>(iChar);
+	}
+}
+
+CaseFolderTable::~CaseFolderTable() {
+}
+
+size_t CaseFolderTable::Fold(char *folded, size_t sizeFolded, const char *mixed, size_t lenMixed) {
+	if (lenMixed > sizeFolded) {
+		return 0;
+	} else {
+		for (size_t i=0; i<lenMixed; i++) {
+			folded[i] = mapping[static_cast<unsigned char>(mixed[i])];
+		}
+		return lenMixed;
+	}
+}
+
+void CaseFolderTable::SetTranslation(char ch, char chTranslation) {
+	mapping[static_cast<unsigned char>(ch)] = chTranslation;
+}
+
+void CaseFolderTable::StandardASCII() {
+	for (size_t iChar=0; iChar<sizeof(mapping); iChar++) {
+		if (iChar >= 'A' && iChar <= 'Z') {
+			mapping[iChar] = static_cast<char>(iChar - 'A' + 'a');
+		} else {
+			mapping[iChar] = static_cast<char>(iChar);
+		}
+	}
+}
+
+CaseFolderUnicode::CaseFolderUnicode() {
+	StandardASCII();
+	converter = ConverterFor(CaseConversionFold);
+}
+
+size_t CaseFolderUnicode::Fold(char *folded, size_t sizeFolded, const char *mixed, size_t lenMixed) {
+	if ((lenMixed == 1) && (sizeFolded > 0)) {
+		folded[0] = mapping[static_cast<unsigned char>(mixed[0])];
+		return 1;
+	} else {
+		return converter->CaseConvertString(folded, sizeFolded, mixed, lenMixed);
+	}
+}
-- 
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