public virtual int SearchBracketBackward(IDocument document, int offset, char openBracket, char closingBracket) { int brackets = -1; // first try "quick find" - find the matching bracket if there is no string/comment in the way for (int i = offset; i > 0; --i) { char ch = document.GetCharAt(i); if (ch == openBracket) { ++brackets; if (brackets == 0) return i; } else if (ch == closingBracket) { --brackets; //} else if (ch == '"') { // break; //} else if (ch == '\'') { // break; //} else if (ch == '/' && i > 0) { // if (document.GetCharAt(i - 1) == '/') break; // if (document.GetCharAt(i - 1) == '*') break; } } return -1; } public virtual int SearchBracketForward(IDocument document, int offset, char openBracket, char closingBracket) { int brackets = 1; // try "quick find" - find the matching bracket if there is no string/comment in the way for (int i = offset; i < document.TextLength; ++i) { char ch = document.GetCharAt(i); if (ch == openBracket) { ++brackets; } else if (ch == closingBracket) { --brackets; if (brackets == 0) return i; //} else if (ch == '"') { // break; //} else if (ch == '\'') { // break; //} else if (ch == '/' && i > 0) { // if (document.GetCharAt(i - 1) == '/') break; //} else if (ch == '*' && i > 0) { // if (document.GetCharAt(i - 1) == '/') break; } } return -1; } ICSharpCode:Gui/TextEditor中
括号匹配在何处被定义和捕捉更新？奇怪的是如果加了//或者/*就会失效，所以把上面的注示掉 答：TextArea.cs中的List<BracketHighlightingSheme> bracketshemes = new List<BracketHighlightingSheme>();变量存储在查找的匹配 项，SearchMatchingBracket()方法中搜索并更新匹配项的显示
代码在Document/FormattingStrategy下
后来想想也有道理，因为注示掉的文字，可能也有括号，这样匹配项就不对了，这里还有修改的空间?????
在4.30的源码里找到了如下段，可是已经给注示掉了，不过证明了原来的两段是不合理的！
int DoQuickFindBackward(IDocument document, int offset, char openBracket, char closingBracket) { int brackets = -1; // first try "quick find" - find the matching bracket if there is no string/comment in the way for (int i = offset; i >= 0; --i) { char ch = document.GetCharAt(i); if (ch == openBracket) { ++brackets; if (brackets == 0) return i; } else if (ch == closingBracket) { --brackets; } else if (ch == '"') { break; } else if (ch == '#') { break; } else if (ch == '\'') { break; } else if (ch == '/' && i > 0) { if (document.GetCharAt(i - 1) == '/') break; if (document.GetCharAt(i - 1) == '*') break; } } return -1; } int DoQuickFindForward(IDocument document, int offset, char openBracket, char closingBracket) { int brackets = 1; // try "quick find" - find the matching bracket if there is no string/comment in the way for (int i = offset; i < document.TextLength; ++i) { char ch = document.GetCharAt(i); if (ch == openBracket) { ++brackets; } else if (ch == closingBracket) { --brackets; if (brackets == 0) return i; } else if (ch == '"') { break; } else if (ch == '#') { break; } else if (ch == '\'') { break; } else if (ch == '/' && i > 0) { if (document.GetCharAt(i - 1) == '/') break; } else if (ch == '*' && i > 0) { if (document.GetCharAt(i - 1) == '/') break; } } return -1; } public override int SearchBracketBackward(IDocument document, int offset, char openBracket, char closingBracket) { // Implemented Boo specific "quick find" of brackets // needed because of "#" --> comment character int quickFind = DoQuickFindBackward(document, offset, openBracket, closingBracket); if (quickFind >= 0) return quickFind; // Same as with C# - can not parse a boo file backwards // -> all brackets from the beginning are put on a stack bool inSingleComment = false; int multiCommentLevel = 0; // Boo has nested multiline comments bool inMultiString = false; bool inSingleString = false; bool inSingleString2 = false; // ' ... ' strings Stack bracketStack = new Stack (); if (document.TextContent.StartsWith("//")) { inSingleComment = true; } for (int position = 0; position <= offset; ++position) { try { char ch = document.GetCharAt(position); if (ch == openBracket) { if (!(inSingleString || inSingleString2 || inMultiString || inSingleComment || (multiCommentLevel != 0))) { bracketStack.Push(position); } } else { if (ch == closingBracket) { if (!(inSingleString || inSingleString2 || inMultiString || inSingleComment || (multiCommentLevel != 0))) { if (bracketStack.Count > 0) { bracketStack.Pop(); } } } else { switch (ch) { case '/': if (!(inMultiString || inSingleString2 || inSingleString || inSingleComment)) { if (document.GetCharAt(position + 1) == '*') { multiCommentLevel++; } if (document.GetCharAt(position + 1) == '/') { inSingleComment = true; } if (document.GetCharAt(position - 1) == '*') { multiCommentLevel--; } } break; case '#': if (!inMultiString && !inSingleString && !inSingleString2) inSingleComment = true; break; case '\n': if (!inMultiString && !inSingleString && !inSingleString2) inSingleComment = false; break; case '"': if (IsMultilineString(document, position)) { position += 2; inMultiString = !inMultiString; } else { if (!inMultiString && !inSingleString2) { inSingleString = !inSingleString; } } break; case '\'': if (!inMultiString && !inSingleString2) { inSingleString2 = !inSingleString2; } break; case '\\': if (!inMultiString) position++; break; } } } } catch (ArgumentOutOfRangeException) { break; } } if (bracketStack.Count > 0) return bracketStack.Pop(); return -1; } bool IsMultilineString(IDocument document, int offset) { if (offset + 2 >= document.TextLength) return false; if ((document.GetCharAt(offset) == document.GetCharAt(offset + 1)) && (document.GetCharAt(offset) == document.GetCharAt(offset + 2))) { return true; } return false; } public override int SearchBracketForward(IDocument document, int offset, char openBracket, char closingBracket) { // Implemented Boo specific "quick find" of brackets // needed because of "#" --> comment character int quickFind = DoQuickFindForward(document, offset, openBracket, closingBracket); if (quickFind >= 0) return quickFind; int brackets = 1; bool inSingleComment = false; int multiCommentLevel = 0; bool inMultiString = false; bool inSingleString = false; while (offset < document.TextLength) { char ch = document.GetCharAt(offset); if (ch == openBracket) { if (!(inSingleString || inMultiString || inSingleComment || (multiCommentLevel != 0))) { brackets++; } } else { if (ch == closingBracket) { if (!(inSingleString || inMultiString || inSingleComment || (multiCommentLevel != 0))) { brackets--; if (brackets == 0) return offset; } } else { switch (ch) { case '/': if (!inMultiString && !inSingleString) { if (offset + 1 < document.TextLength) { if (document.GetCharAt(offset + 1) == '*') { multiCommentLevel++; } else if (document.GetCharAt(offset + 1) == '/') { inSingleComment = true; } } } break; case '*': if (!inMultiString && !inSingleString) { if (offset + 1 < document.TextLength && document.GetCharAt(offset + 1) == '/') { multiCommentLevel--; } } break; case '#': if (!inMultiString && !inSingleString) inSingleComment = true; break; case '\n': if (!inMultiString && !inSingleString) inSingleComment = false; break; case '"': if (IsMultilineString(document, offset)) { offset += 2; inMultiString = !inMultiString; } else { if (!inMultiString) { inSingleString = !inSingleString; } } break; case '\\': if (!inMultiString) offset++; break; } } } offset++; } return -1; }