/// <summary> This procedure is invoked to process the "incr" Tcl command.
/// See the user documentation for details on what it does.
/// </summary>
/// <exception cref=""> TclException if wrong # of args or increment is not an
/// integer.
/// </exception>
public TCL.CompletionCode CmdProc(Interp interp, TclObject[] objv)
{
int incrAmount;
TclObject newValue;
if ((objv.Length != 2) && (objv.Length != 3))
{
throw new TclNumArgsException(interp, 1, objv, "varName ?increment?");
}
// Calculate the amount to increment by.
if (objv.Length == 2)
{
incrAmount = 1;
}
else
{
try
{
incrAmount = TclInteger.Get(interp, objv[2]);
}
catch (TclException e)
{
interp.AddErrorInfo("\n (reading increment)");
throw;
}
}
// Increment the variable's value.
newValue = Var.incrVar(interp, objv[1], null, incrAmount, TCL.VarFlag.LEAVE_ERR_MSG);
// FIXME: we need to look at this exception throwing problem again
/*
if (newValue == null) {
return TCL_ERROR;
}
*/
// Set the interpreter's object result to refer to the variable's new
// value object.
interp.SetResult(newValue);
return TCL.CompletionCode.RETURN;
}
public TCL.CompletionCode CmdProc(Interp interp, TclObject[] argv)
{
int i, mode, body;
bool matched;
string inString;
TclObject[] switchArgv = null;
mode = EXACT;
for (i = 1; i < argv.Length; i++)
{
if (!argv[i].ToString().StartsWith("-"))
{
break;
}
int opt = TclIndex.Get(interp, argv[i], validCmds, "option", 1);
if (opt == LAST)
{
i++;
break;
}
else if (opt > LAST)
{
throw new TclException(interp, "SwitchCmd.cmdProc: bad option " + opt + " index to validCmds");
}
else
{
mode = opt;
}
}
if (argv.Length - i < 2)
{
throw new TclNumArgsException(interp, 1, argv, "?switches? string pattern body ... ?default body?");
}
inString = argv[i].ToString();
i++;
// If all of the pattern/command pairs are lumped into a single
// argument, split them out again.
if (argv.Length - i == 1)
{
switchArgv = TclList.getElements(interp, argv[i]);
i = 0;
}
else
{
switchArgv = argv;
}
for (; i < switchArgv.Length; i += 2)
{
if (i == (switchArgv.Length - 1))
{
throw new TclException(interp, "extra switch pattern with no body");
}
// See if the pattern matches the string.
matched = false;
string pattern = switchArgv[i].ToString();
if ((i == switchArgv.Length - 2) && pattern.Equals("default"))
{
matched = true;
}
else
{
switch (mode)
{
case EXACT:
matched = inString.Equals(pattern);
break;
case GLOB:
matched = Util.StringMatch(inString, pattern);
break;
case REGEXP:
matched = Util.regExpMatch(interp, inString, switchArgv[i]);
break;
}
}
if (!matched)
{
continue;
}
// We've got a match. Find a body to execute, skipping bodies
// that are "-".
for (body = i + 1; ; body += 2)
{
if (body >= switchArgv.Length)
{
throw new TclException(interp, "no body specified for pattern \"" + switchArgv[i] + "\"");
}
if (!switchArgv[body].ToString().Equals("-"))
{
break;
}
}
try
{
interp.Eval(switchArgv[body], 0);
return TCL.CompletionCode.RETURN;
}
catch (TclException e)
{
if (e.GetCompletionCode() == TCL.CompletionCode.ERROR)
{
interp.AddErrorInfo("\n (\"" + switchArgv[i] + "\" arm line " + interp._errorLine + ")");
}
throw;
}
}
// Nothing matched: return nothing.
return TCL.CompletionCode.RETURN;
}
/// <summary> See Tcl user documentation for details.</summary>
/// <exception cref=""> TclException If incorrect number of arguments.
/// </exception>
public TCL.CompletionCode CmdProc(Interp interp, TclObject[] argv)
{
int i;
bool value;
i = 1;
while (true)
{
/*
* At this point in the loop, argv and argc refer to an
* expression to test, either for the main expression or
* an expression following an "elseif". The arguments
* after the expression must be "then" (optional) and a
* script to execute if the expression is true.
*/
if (i >= argv.Length)
{
throw new TclException(interp, "wrong # args: no expression after \"" + argv[i - 1] + "\" argument");
}
try
{
value = interp._expr.EvalBoolean(interp, argv[i].ToString());
}
catch (TclException e)
{
switch (e.GetCompletionCode())
{
case TCL.CompletionCode.ERROR:
interp.AddErrorInfo("\n (\"if\" test expression)");
break;
}
throw;
}
i++;
if ((i < argv.Length) && (argv[i].ToString().Equals("then")))
{
i++;
}
if (i >= argv.Length)
{
throw new TclException(interp, "wrong # args: no script following \"" + argv[i - 1] + "\" argument");
}
if (value)
{
try
{
interp.Eval(argv[i], 0);
}
catch (TclException e)
{
switch (e.GetCompletionCode())
{
case TCL.CompletionCode.ERROR:
interp.AddErrorInfo("\n (\"if\" then script line " + interp._errorLine + ")");
break;
}
throw;
}
return TCL.CompletionCode.RETURN;
}
/*
* The expression evaluated to false. Skip the command, then
* see if there is an "else" or "elseif" clause.
*/
i++;
if (i >= argv.Length)
{
interp.ResetResult();
return TCL.CompletionCode.RETURN;
}
if (argv[i].ToString().Equals("elseif"))
{
i++;
continue;
}
break;
}
/*
* Couldn't find a "then" or "elseif" clause to execute.
* Check now for an "else" clause. We know that there's at
* least one more argument when we get here.
*/
if (argv[i].ToString().Equals("else"))
{
i++;
if (i >= argv.Length)
{
throw new TclException(interp, "wrong # args: no script following \"else\" argument");
}
else if (i != (argv.Length - 1))
{
throw new TclException(interp, "wrong # args: extra words after \"else\" clause in " + "\"if\" command");
}
}
try
{
interp.Eval(argv[i], 0);
}
catch (TclException e)
{
switch (e.GetCompletionCode())
{
case TCL.CompletionCode.ERROR:
interp.AddErrorInfo("\n (\"if\" else script line " + interp._errorLine + ")");
break;
}
throw;
}
return TCL.CompletionCode.RETURN;
}
/*
* This procedure is invoked to process the "for" Tcl command.
* See the user documentation for details on what it does.
*
* @param interp the current interpreter.
* @param argv command arguments.
* @exception TclException if script causes error.
*/
public TCL.CompletionCode CmdProc(Interp interp, TclObject[] argv)
{
if (argv.Length != 5)
{
throw new TclNumArgsException(interp, 1, argv, "start test next command");
}
TclObject start = argv[1];
string test = argv[2].ToString();
TclObject next = argv[3];
TclObject command = argv[4];
bool done = false;
try
{
interp.Eval(start, 0);
}
catch (TclException e)
{
interp.AddErrorInfo("\n (\"for\" initial command)");
throw;
}
while (!done)
{
if (!interp._expr.EvalBoolean(interp, test))
{
break;
}
try
{
interp.Eval(command, 0);
}
catch (TclException e)
{
switch (e.GetCompletionCode())
{
case TCL.CompletionCode.BREAK:
done = true;
break;
case TCL.CompletionCode.CONTINUE:
break;
case TCL.CompletionCode.ERROR:
interp.AddErrorInfo("\n (\"for\" body line " + interp._errorLine + ")");
throw;
default:
throw;
}
}
if (!done)
{
try
{
interp.Eval(next, 0);
}
catch (TclException e)
{
switch (e.GetCompletionCode())
{
case TCL.CompletionCode.BREAK:
done = true;
break;
case TCL.CompletionCode.CONTINUE:
break;
default:
interp.AddErrorInfo("\n (\"for\" loop-end command)");
throw;
}
}
}
}
interp.ResetResult();
return TCL.CompletionCode.RETURN;
}
/// <summary> Executes a "case" statement. See Tcl user
/// documentation for details.
///
/// </summary>
/// <param name="interp">the current interpreter.
/// </param>
/// <param name="argv">command arguments.
/// </param>
/// <exception cref=""> TclException If incorrect number of arguments.
/// </exception>
public TCL.CompletionCode CmdProc(Interp interp, TclObject[] argv)
{
if (argv.Length < 3)
{
throw new TclNumArgsException(interp, 1, argv, "string ?in? patList body ... ?default body?");
}
int i;
int body;
TclObject[] caseArgv;
string inString;
inString = argv[1].ToString();
caseArgv = argv;
body = -1;
if (argv[2].ToString().Equals("in"))
{
i = 3;
}
else
{
i = 2;
}
/*
* If all of the pattern/command pairs are lumped into a single
* argument, split them out again.
*/
if (argv.Length - i == 1)
{
caseArgv = TclList.getElements(interp, argv[i]);
i = 0;
}
{
for (; i < caseArgv.Length; i += 2)
{
int j;
if (i == (caseArgv.Length - 1))
{
throw new TclException(interp, "extra case pattern with no body");
}
/*
* Check for special case of single pattern (no list) with
* no backslash sequences.
*/
string caseString = caseArgv[i].ToString();
int len = caseString.Length;
for (j = 0; j < len; j++)
{
char c = caseString[j];
if (System.Char.IsWhiteSpace(c) || (c == '\\'))
{
break;
}
}
if (j == len)
{
if (caseString.Equals("default"))
{
body = i + 1;
}
if (Util.StringMatch(inString, caseString))
{
body = i + 1;
goto match_loop_brk;
}
continue;
}
/*
* Break up pattern lists, then check each of the patterns
* in the list.
*/
int numPats = TclList.getLength(interp, caseArgv[i]);
for (j = 0; j < numPats; j++)
{
if (Util.StringMatch(inString, TclList.index(interp, caseArgv[i], j).ToString()))
{
body = i + 1;
goto match_loop_brk;
}
}
}
}
match_loop_brk:
;
if (body != -1)
{
try
{
interp.Eval(caseArgv[body], 0);
}
catch (TclException e)
{
if (e.GetCompletionCode() == TCL.CompletionCode.ERROR)
{
interp.AddErrorInfo("\n (\"" + caseArgv[body - 1] + "\" arm line " + interp._errorLine + ")");
}
throw;
}
}
return TCL.CompletionCode.RETURN;
}
internal void transferResult(Interp sourceInterp, TCL.CompletionCode result)
{
if (sourceInterp == this)
{
return;
}
if (result == TCL.CompletionCode.ERROR)
{
TclObject obj;
// An error occurred, so transfer error information from the source
// interpreter to the target interpreter. Setting the flags tells
// the target interp that it has inherited a partial traceback
// chain, not just a simple error message.
if (!sourceInterp._errAlreadyLogged)
{
sourceInterp.AddErrorInfo("");
}
sourceInterp._errAlreadyLogged = true;
ResetResult();
obj = sourceInterp.GetVar("errorInfo", TCL.VarFlag.GLOBAL_ONLY);
SetVar("errorInfo", obj, TCL.VarFlag.GLOBAL_ONLY);
obj = sourceInterp.GetVar("errorCode", TCL.VarFlag.GLOBAL_ONLY);
SetVar("errorCode", obj, TCL.VarFlag.GLOBAL_ONLY);
_errInProgress = true;
_errCodeSet = true;
}
_returnCode = result;
SetResult(sourceInterp.GetResult());
sourceInterp.ResetResult();
if (result != TCL.CompletionCode.OK)
{
throw new TclException(this, GetResult().ToString(), result);
}
}
public TCL.CompletionCode CmdProc(Interp interp, TclObject[] argv)
{
string fileName = null;
bool url = false;
if (argv.Length == 2)
{
fileName = argv[1].ToString();
}
else if (argv.Length == 3)
{
if (argv[1].ToString().Equals("-url"))
{
url = true;
fileName = argv[2].ToString();
}
}
if ((System.Object)fileName == null)
{
throw new TclNumArgsException(interp, 1, argv, "?-url? fileName");
}
try
{
if (url)
{
if (fileName.StartsWith("resource:/"))
{
interp.evalResource(fileName.Substring(9));
}
else
{
interp.evalURL(null, fileName);
}
}
else
{
interp.evalFile(fileName);
}
}
catch (TclException e)
{
TCL.CompletionCode code = e.GetCompletionCode();
if (code == TCL.CompletionCode.RETURN)
{
TCL.CompletionCode realCode = interp.updateReturnInfo();
if (realCode != TCL.CompletionCode.OK)
{
e.setCompletionCode(realCode);
throw;
}
}
else if (code == TCL.CompletionCode.ERROR)
{
/*
* Record information telling where the error occurred.
*/
interp.AddErrorInfo("\n (file line " + interp._errorLine + ")");
throw;
}
else
{
throw;
}
}
return TCL.CompletionCode.RETURN;
}