private int CurrentLineIndent(TextBuilder tb) {
for (int i = tb.Length - 1; i >= 0; i--) {
if (CharExtensions.IsLineBreak(tb.Text[i])) {
return IndentBuilder.TextIndentInSpaces(tb.Text.Substring(i + 1), _options.TabSize);
}
}
return 0;
}
public FormattingScope(TextBuilder tb, TokenStream<RToken> tokens, int openBraceTokenIndex, RFormatOptions options, BraceHandler braceHandler) {
Debug.Assert(tokens[openBraceTokenIndex].TokenType == RTokenType.OpenCurlyBrace);
_options = options;
_tb = tb;
_previousIndentLevel = tb.IndentBuilder.IndentLevel;
CloseCurlyBraceTokenIndex = FindMatchingCloseBrace(tokens, openBraceTokenIndex);
StartingLineIndentSize = braceHandler.GetOpenCurlyBraceIndentSize(tokens[openBraceTokenIndex], tb, options);
if (StartingLineIndentSize > 0) {
tb.IndentBuilder.SetIndentLevelForSize(StartingLineIndentSize + _options.IndentSize);
} else {
tb.IndentBuilder.NewIndentLevel();
}
}
/// <summary>
/// Determines indentation based on the leading whitespace in the current line.
/// </summary>
public static int GetLineIndentSize(TextBuilder tb, int position, int tabSize) {
for (int i = position - 1; i >= 0; i--) {
if (CharExtensions.IsLineBreak(tb.Text[i])) {
return TextIndentInSpaces(tb.Text.Substring(i + 1), tabSize);
}
}
return 0;
}
public RFormatter(RFormatOptions options) {
_options = options;
_indentBuilder = new IndentBuilder(_options.IndentType, _options.IndentSize, _options.TabSize);
_tb = new TextBuilder(_indentBuilder);
_formattingScopes.Push(new FormattingScope(_indentBuilder));
}
public RFormatter(RFormatOptions options) {
_options = options;
_indentBuilder = new IndentBuilder(_options.IndentType, _options.IndentSize, _options.TabSize);
_tb = new TextBuilder(_indentBuilder);
}
public BraceHandler(TokenStream<RToken> tokens, TextBuilder tb) {
_tokens = tokens;
_tb = tb;
}
/// <summary>
/// Given closing curly brace tries to find keyword that is associated
/// with the scope and calculate indentation based on the keyword line.
/// </summary>
public int GetCloseCurlyBraceIndentSize(RToken closeCurlyBraceToken, TextBuilder tb, RFormatOptions options) {
Debug.Assert(closeCurlyBraceToken.TokenType == RTokenType.CloseCurlyBrace);
// Search stack for the first matching brace. Stack enumerates from the top down.
var openCurlyBraceToken = _openBraces.FirstOrDefault(t => t.TokenType == RTokenType.OpenCurlyBrace);
if (openCurlyBraceToken != null) {
return GetOpenCurlyBraceIndentSize(openCurlyBraceToken, tb, options);
}
return 0;
}
/// <summary>
/// Given opening curly brace tries to find keyword that is associated
/// with the scope and calculate indentation based on the keyword line.
/// </summary>
public int GetOpenCurlyBraceIndentSize(RToken openCurlyBraceToken, TextBuilder tb, RFormatOptions options) {
Debug.Assert(openCurlyBraceToken.TokenType == RTokenType.OpenCurlyBrace);
int keywordPosition = -1;
if (_bracetoKeywordPositionMap.TryGetValue(openCurlyBraceToken, out keywordPosition)) {
return IndentBuilder.GetLineIndentSize(tb, keywordPosition, options.TabSize);
}
return 0;
}