73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
// Scintilla source code edit control
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/** @file KeyWords.cxx
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** Colourise for particular languages.
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**/
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// Copyright 1998-2002 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 "ILexer.h"
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#include "Scintilla.h"
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#include "SciLexer.h"
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#include "PropSetSimple.h"
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#include "WordList.h"
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#include "LexAccessor.h"
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#include "Accessor.h"
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#ifdef SCI_NAMESPACE
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using namespace Scintilla;
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#endif
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Accessor::Accessor(IDocument *pAccess_, PropSetSimple *pprops_) : LexAccessor(pAccess_), pprops(pprops_) {
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}
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int Accessor::GetPropertyInt(const char *key, int defaultValue) const {
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return pprops->GetInt(key, defaultValue);
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}
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int Accessor::IndentAmount(int line, int *flags, PFNIsCommentLeader pfnIsCommentLeader) {
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int end = Length();
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int spaceFlags = 0;
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// Determines the indentation level of the current line and also checks for consistent
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// indentation compared to the previous line.
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// Indentation is judged consistent when the indentation whitespace of each line lines
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// the same or the indentation of one line is a prefix of the other.
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int pos = LineStart(line);
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char ch = (*this)[pos];
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int indent = 0;
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bool inPrevPrefix = line > 0;
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int posPrev = inPrevPrefix ? LineStart(line-1) : 0;
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while ((ch == ' ' || ch == '\t') && (pos < end)) {
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if (inPrevPrefix) {
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char chPrev = (*this)[posPrev++];
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if (chPrev == ' ' || chPrev == '\t') {
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if (chPrev != ch)
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spaceFlags |= wsInconsistent;
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} else {
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inPrevPrefix = false;
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}
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}
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if (ch == ' ') {
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spaceFlags |= wsSpace;
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indent++;
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} else { // Tab
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spaceFlags |= wsTab;
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if (spaceFlags & wsSpace)
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spaceFlags |= wsSpaceTab;
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indent = (indent / 8 + 1) * 8;
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}
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ch = (*this)[++pos];
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}
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*flags = spaceFlags;
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indent += SC_FOLDLEVELBASE;
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// if completely empty line or the start of a comment...
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if ((LineStart(line) == Length()) || (ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r') ||
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(pfnIsCommentLeader && (*pfnIsCommentLeader)(*this, pos, end-pos)))
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return indent | SC_FOLDLEVELWHITEFLAG;
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else
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return indent;
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}
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