/// <summary>
/// Read a statement, which can potentially be a multiple-line statement suite (like a class declaration).
/// </summary>
/// <param name="continueInteraction">Should the console session continue, or did the user indicate
/// that it should be terminated?</param>
/// <returns>Expression to evaluate. null for empty input</returns>
public string ReadStatement(out bool continueInteraction)
{
StringBuilder b = new StringBuilder();
int autoIndentSize = 0;
if (!LanguageProvider.InputRedirected)
{
_console.Write(Prompt, Style.Prompt);
}
while (true)
{
string line = ReadLine(autoIndentSize);
continueInteraction = true;
if (line == null)
{
continueInteraction = false;
return(null);
}
bool allowIncompleteStatement = TreatAsBlankLine(line, autoIndentSize);
b.Append(line);
b.Append("\n");
string code = b.ToString();
SourceCodeProperties props = _engine.GetCodeProperties(code, SourceCodeKind.InteractiveCode);
if (SourceCodePropertiesUtils.IsCompleteOrInvalid(props, allowIncompleteStatement))
{
return(props != SourceCodeProperties.IsEmpty ? code : null);
}
if (_options.AutoIndent && _options.AutoIndentSize != 0)
{
autoIndentSize = GetNextAutoIndentSize(code);
}
if (!LanguageProvider.InputRedirected)
{
// Keep on reading input
_console.Write(PromptContinuation, Style.Prompt);
}
}
}
/// <summary>
/// Read a statement, which can potentially be a multiple-line statement suite (like a class declaration).
/// </summary>
/// <param name="continueInteraction">Should the console session continue, or did the user indicate
/// that it should be terminated?</param>
/// <returns>Expression to evaluate. null for empty input</returns>
protected string ReadStatement(out bool continueInteraction)
{
StringBuilder b = new StringBuilder();
int autoIndentSize = 0;
_console.Write(Prompt, Style.Prompt);
while (true)
{
string line = ReadLine(autoIndentSize);
continueInteraction = true;
if (line == null || (_terminatingExitCode != null))
{
continueInteraction = false;
return(null);
}
bool allowIncompleteStatement = TreatAsBlankLine(line, autoIndentSize);
b.Append(line);
b.Append("\n");
string code = b.ToString();
ScriptSource command = _engine.CreateScriptSourceFromString(code,
(code.Contains(Environment.NewLine))? SourceCodeKind.Statements : SourceCodeKind.InteractiveCode);
ScriptCodeParseResult props = command.GetCodeProperties(_engine.GetCompilerOptions(_scope));
if (SourceCodePropertiesUtils.IsCompleteOrInvalid(props, allowIncompleteStatement))
{
return(props != ScriptCodeParseResult.Empty ? code : null);
}
if (_options.AutoIndent && _options.AutoIndentSize != 0)
{
autoIndentSize = GetNextAutoIndentSize(code);
}
// Keep on reading input
_console.Write(PromptContinuation, Style.Prompt);
}
}
/// <summary>
/// Read a statement, which can potentially be a multiple-line statement suite (like a class declaration).
/// </summary>
/// <param name="continueInteraction">Should the console session continue, or did the user indicate
/// that it should be terminated?</param>
/// <returns>Expression to evaluate. null for empty input</returns>
protected string ReadStatement(out bool continueInteraction)
{
StringBuilder b = new StringBuilder();
int autoIndentSize = 0;
_console.Write(Prompt, Style.Prompt);
while (true)
{
string line = ReadLine(autoIndentSize);
continueInteraction = true;
if (line == null || (_terminatingExitCode != null))
{
continueInteraction = false;
return(null);
}
bool allowIncompleteStatement = TreatAsBlankLine(line, autoIndentSize);
b.Append(line);
// Note that this does not use Environment.NewLine because some languages (eg. Python) only
// recognize \n as a line terminator.
b.Append("\n");
string code = b.ToString();
var props = GetCommandProperties(code);
if (SourceCodePropertiesUtils.IsCompleteOrInvalid(props, allowIncompleteStatement))
{
return(props != ScriptCodeParseResult.Empty ? code : null);
}
if (_options.AutoIndent && _options.AutoIndentSize != 0)
{
autoIndentSize = GetNextAutoIndentSize(code);
}
// Keep on reading input
_console.Write(PromptContinuation, Style.Prompt);
}
}
private ScriptSource GetStatement(out bool continueInteraction)
{
ScriptSource source = null;
StringBuilder codeBuilder = new StringBuilder();
int autoIndentSize = 0;
this.Console.Write(Prompt, Style.Prompt);
while (true)
{
string line = ReadLine(autoIndentSize);
continueInteraction = true;
if (line == null)
{
continueInteraction = false;
return(source);
}
if (line == "$")
{
return(null);
}
bool allowIncompleteStatement = false;
codeBuilder.Append(line);
codeBuilder.Append('\n');
string code = codeBuilder.ToString();
var props = GetCommandPropertiesAndParse(code, out source);
if (SourceCodePropertiesUtils.IsCompleteOrInvalid(props, allowIncompleteStatement))
{
return(props != ScriptCodeParseResult.Empty ? source : null);
}
// Keep on reading input
this.Console.Write(PromptContinuation, Style.Prompt);
}
}
