/// <summary>
/// Implement the same logic as found at
/// http://msdn.microsoft.com/en-us/library/17w5ykft.aspx
/// The 3 special characters are quote, backslash and whitespaces, in order
/// of priority.
/// The semantics of a quote is: whatever the state of the lexer, copy
/// all characters verbatim until the next quote or EOF.
/// The semantics of backslash is: If the next character is a backslash or a quote,
/// copy the next character. Otherwise, copy the backslash and the next character.
/// The semantics of whitespace is: end the current argument and move on to the next one.
/// </summary>
private IEnumerable<string> SplitArgs(string commandLine) {
var state = new State(commandLine);
while (!state.EOF) {
switch (state.Current) {
case '"':
ProcessQuote(state);
break;
case '\\':
ProcessBackslash(state);
break;
case ' ':
case '\t':
if (state.StringBuilder.Length > 0)
state.AddArgument();
state.MoveNext();
break;
default:
state.AppendCurrent();
state.MoveNext();
break;
}
}
if (state.StringBuilder.Length > 0)
state.AddArgument();
return state.Arguments;
}
private void ProcessQuote(State state)
{
state.MoveNext();
while (!state.EOF) {
if (state.Current == '"') {
state.MoveNext();
break;
}
state.AppendCurrent();
state.MoveNext();
}
state.AddArgument();
}
private void ProcessQuote(State state)
{
state.MoveNext();
while (!state.EOF)
{
if (state.Current == '"')
{
state.MoveNext();
break;
}
state.AppendCurrent();
state.MoveNext();
}
state.AddArgument();
}
private void ProcessBackslash(State state)
{
state.MoveNext();
if (state.EOF) {
state.Append('\\');
return;
}
if (state.Current == '"') {
state.Append('"');
state.MoveNext();
}
else {
state.Append('\\');
state.AppendCurrent();
state.MoveNext();
}
}
private void ProcessBackslash(State state)
{
state.MoveNext();
if (state.EOF)
{
state.Append('\\');
return;
}
if (state.Current == '"')
{
state.Append('"');
state.MoveNext();
}
else
{
state.Append('\\');
state.AppendCurrent();
state.MoveNext();
}
}
/// <summary>
/// Implement the same logic as found at
/// http://msdn.microsoft.com/en-us/library/17w5ykft.aspx
/// The 3 special characters are quote, backslash and whitespaces, in order
/// of priority.
/// The semantics of a quote is: whatever the state of the lexer, copy
/// all characters verbatim until the next quote or EOF.
/// The semantics of backslash is: If the next character is a backslash or a quote,
/// copy the next character. Otherwise, copy the backslash and the next character.
/// The semantics of whitespace is: end the current argument and move on to the next one.
/// </summary>
private IEnumerable <string> SplitArgs(string commandLine)
{
var state = new State(commandLine);
while (!state.EOF)
{
switch (state.Current)
{
case '"':
ProcessQuote(state);
break;
case '\\':
ProcessBackslash(state);
break;
case ' ':
case '\t':
if (state.StringBuilder.Length > 0)
{
state.AddArgument();
}
state.MoveNext();
break;
default:
state.AppendCurrent();
state.MoveNext();
break;
}
}
if (state.StringBuilder.Length > 0)
{
state.AddArgument();
}
return(state.Arguments);
}