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