public static string Filter(ScriptEngine se, StringSplitter ss, string s)
{
ArrayList args = ss.Split(s);
if (args == null)
{
return(s);
}
int n = args.Count - 1;
s = (string)args[0];
// Check if it's a script name, map to: load( "scriptname" , ...);
bool isHelp = "help".Equals(s);
string f = Scripts.GetScriptFilePath(s);
bool isScript = (!String.IsNullOrWhiteSpace(f));
if (!isScript)
{
s += '(';
}
else
{
s = "load(\"" + s + "\",";
}
if (n != 0)
{
for (int k = 1; k <= n; k++)
{
string arg = (string)args[k];
if (isHelp || se.ApplyQuotes(arg))
{
if (arg.Length == 0 || (arg[0] != '"' && arg[0] != '\''))
{
arg = "'" + arg + "'";
}
}
s += arg;
if (k < n)
{
s += ',';
}
}
}
else if (isScript)
{
s += "[]";
}
if (ss.GetBuffer().EndsWith("\n"))
{
s += ");\n";
}
else
{
s += ");";
}
return(s);
}
public static string Col(int col, string text)
{
StringSplitter ss = new StringSplitter();
ArrayList cols = ss.SplitArgs(text);
if (cols != null && col >= 0 && cols.Count > col)
{
return((string)(cols[col]));
}
return("");
}
public static string LoadScript(ScriptEngine se, String scriptName, ArrayList args)
{
string result = ""; int lineNum = 0;
string filePath = GetScriptFilePath(scriptName);
if (String.IsNullOrWhiteSpace(filePath))
{
return("Error: script name not found: try updating script cache.");
}
ArrayList ary = new ArrayList();
ary.Add(EscapeStringLiteral(filePath));
foreach (string s in args)
{
ary.Add(EscapeStringLiteral(s));
}
try {
StreamReader sr = new StreamReader(filePath);
StringSplitter ss = new StringSplitter(Scripts.IsValidName);
string s, r;
while ((s = sr.ReadLine()) != null)
{
s = StripComments(s);
if (s != null)
{
try {
++lineNum;
r = SubVars(s, ary);
if (se.GetScriptFilteringEnabled())
{
result += ScriptFilter.Filter(se, ss, r);
}
else
{
result += r;
}
result += "\n";
} catch (Exception e) {
result = "Error: filtering script " + scriptName + " line:" + lineNum + ":" + s + "\n"
+ "Exception:" + e.Message;
}
}
}
sr.Close();
sr = null;
} catch (Exception e) {
result = "Error: loading script " + scriptName + " from " + filePath + "\n"
+ "Exception:" + e.Message;
}
return(result);
}
// TODO: detect case when function call used as arg: "...,fred(1),...".
public bool ApplyQuotes(string arg)
{
return(AutoQuotingEnabled && arg.Length > 0 &&
StringSplitter.IsAlpha(arg[0]) &&
!IsVarInScope(arg));
}
