///<summary>Transform variable</summary>
///<param name="source">Original variable value</param>
///<param name="rules">Transformation rules (<see cref="TransformRules"/></param>
///<returns>Transformed object</returns>
public object Transform(object source, TransformRules rules)
{
object s = source;
if (source != null && rules != TransformRules.None)
{
Type t = source.GetType();
if (t == typeof(Nullable <>))
{
t = Nullable.GetUnderlyingType(t);
}
if (t.IsPrimitive || t == typeof(Guid) || t == typeof(decimal))
{
rules &= ~(TransformRules.ExpandMask | TransformRules.TrimMask);
}
if ((rules & TransformRules.ExpandAfterTrim) == TransformRules.ExpandAfterTrim)
{
if (s != null)
{
s = Utils.TransformStr(Utils.To <string>(s), rules & TransformRules.TrimMask);
}
rules = (rules & ~TransformRules.ExpandAfterTrim & ~TransformRules.TrimMask) | TransformRules.Expand;
}
if ((rules & TransformRules.Expand) != 0)
{
s = expandVars(rules, Utils.To <string>(s));
}
if ((rules & TransformRules.ExpandReplaceOnly) == TransformRules.ExpandReplaceOnly)
{
rules &= ~TransformRules.ReplaceMask;
}
if ((rules & TransformRules.ExpandTrimOnly) == TransformRules.ExpandTrimOnly)
{
rules &= ~TransformRules.TrimMask;
}
if ((rules & ~TransformRules.ExpandMask) != TransformRules.None)
{
if (s != null)
{
s = Utils.TransformStr(Utils.To <string>(s), rules & ~TransformRules.Expand);
}
}
}
return(s);
}
/// <summary>
/// Check if text is expression that needs to be calculated if transformed according to the expansion rules
/// </summary>
/// <param name="text">Text to verify</param>
/// <param name="expand">Rules</param>
/// <returns>true if text contains expressions</returns>
public bool ContainsExpressions(string text, TransformRules expand)
{
if (String.IsNullOrEmpty(text))
{
return(false);
}
if ((expand & TransformRules.Expand) == TransformRules.Expand)
{
return(text.Contains("${"));
}
if ((expand & TransformRules.ExpandDual) == TransformRules.ExpandDual)
{
return(text.Contains("${{"));
}
if ((expand & TransformRules.ExpandDualSquare) == TransformRules.ExpandDualSquare)
{
return(text.Contains("[["));
}
if ((expand & TransformRules.ExpandSquare) == TransformRules.ExpandSquare)
{
return(text.Contains("["));
}
return(false);
}
/// <summary>
/// Verify that transformation is correct
/// </summary>
/// <param name="text">Text to verify</param>
/// <param name="expand">Rules</param>
public void AssertGoodTransform(string text, TransformRules expand)
{
if (String.IsNullOrEmpty(text))
{
return;
}
if ((expand & TransformRules.Expand) == TransformRules.Expand && text.Contains("${"))
{
if (!text.Contains("}"))
{
throw new ParsingException("Closing } not found in '" + text + "'");
}
}
if ((expand & TransformRules.ExpandDual) == TransformRules.ExpandDual && text.Contains("${{"))
{
if (!text.Contains("}}"))
{
throw new ParsingException("Closing }} not found in '" + text + "'");
}
}
if ((expand & TransformRules.ExpandDualSquare) == TransformRules.ExpandDualSquare && text.Contains("[["))
{
if (!text.Contains("]]"))
{
throw new ParsingException("Closing ]] not found in '" + text + "'");
}
}
if ((expand & TransformRules.ExpandSquare) == TransformRules.ExpandDualSquare && text.Contains("["))
{
if (!text.Contains("]"))
{
throw new ParsingException("Closing ] not found in '" + text + "'");
}
}
}
/// Constructor
protected XsTransformableElement()
{
Transform = TransformRules.Default;
}
/// Constructor
public CallParam(string name, object value, TransformRules transformRules)
{
Name = name;
Value = value;
Transform = transformRules;
}
private object expandVars(TransformRules rules, string s)
{
string begin;
string end;
if ((rules & TransformRules.ExpandDual) == TransformRules.ExpandDual)
{
begin = "${{";
end = "}}";
}
else if ((rules & TransformRules.ExpandDualSquare) == TransformRules.ExpandDualSquare)
{
begin = "[[";
end = "]]";
}
else if ((rules & TransformRules.ExpandSquare) == TransformRules.ExpandSquare)
{
begin = "[";
end = "]";
}
else if ((rules & TransformRules.Expand) == TransformRules.Expand)
{
begin = "${";
end = "}";
}
else
{
return(s);
}
if (s.IndexOf(begin, StringComparison.Ordinal) != -1)
{
StringBuilder sbNew = new StringBuilder();
using (var sr = new ParsingReader(new StringReader(s)))
{
int ptr = 0;
bool first = true;
while (!sr.IsEOF)
{
char ch = (char)sr.Read();
if (ch != begin[ptr])
{
sbNew.Append(begin, 0, ptr);
sbNew.Append(ch);
ptr = 0;
first = false;
continue;
}
ptr++;
if (ptr < begin.Length)
{
continue;
}
if (sr.Peek() == '{' || sr.Peek() == '[')
{
sbNew.Append(begin);
ptr = 0;
first = false;
continue;
}
//
object sv = EvalMulti(sr);
sv = ((rules & TransformRules.ExpandTrimOnly) == TransformRules.ExpandTrimOnly)
? Utils.TransformStr(Utils.To <string>(sv), rules & TransformRules.TrimMask)
: sv;
sv = ((rules & TransformRules.ExpandReplaceOnly) == TransformRules.ExpandReplaceOnly)
? Utils.TransformStr(Utils.To <string>(sv), rules & TransformRules.ReplaceMask)
: sv;
// Now read the trailing stuff
sr.SkipWhiteSpace();
for (ptr = 0; ptr < end.Length; ++ptr)
{
sr.ReadAndThrowIfNot(end[ptr]);
}
if (sr.IsEOF && first)
{
return(sv);
}
ptr = 0;
first = false;
sbNew.Append(Utils.To <string>(sv));
}
for (int i = 0; i < ptr; ++i)
{
sbNew.Append(begin[i]);
}
}
return(sbNew.ToString());
}
return(s);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="value">value for Value property of the created object</param>
/// <param name="rules">value for Transform property of the created object</param>
public Return(object value, TransformRules rules)
{
Value = value;
Transform = rules;
}
/// Constructor accepting variable name, value to set and transformation rules for variable and value
public Set(string name, string value, TransformRules tr) : this(name, value)
{
Transform = tr;
}
/// Constructor with value
public ShellArg(object value, TransformRules transformRules)
{
Value = value;
Transform = transformRules;
}
/// Constructor with value
public ShellArg(object value, TransformRules transformRules)
{
Value = value;
Transform = transformRules;
}
/// Constructor
public SetAttr(string actionId, string name, object value, TransformRules tr)
: this(actionId,name,value)
{
Transform = tr;
}
/// Transform string according to the specified rules
public static string TransformStr(string arguments, TransformRules trim)
{
if (arguments == null)
{
return(null);
}
if ((trim & TransformRules.Expand) != 0)
{
throw new ArgumentOutOfRangeException("trim", "Expand flag cannot be specified");
}
string ret;
if ((trim & TransformRules.Multiline) == TransformRules.Multiline)
{
string str = TransformStr(arguments, trim & TransformRules.Trim);
StringReader reader = new StringReader(str);
List <string> list = new List <string>();
while ((str = reader.ReadLine()) != null)
{
list.Add(TransformStr(str, trim & ~TransformRules.Multiline));
}
ret = String.Join(Environment.NewLine, list.ToArray());
return(ret);
}
TransformRules tr = trim & TransformRules.Trim;
switch (tr)
{
default:
ret = arguments;
break;
case TransformRules.Trim:
ret = arguments.Trim();
break;
case TransformRules.TrimEnd:
ret = arguments.TrimEnd();
break;
case TransformRules.TrimStart:
ret = arguments.TrimStart();
break;
}
if ((trim & TransformRules.TrimInternal) != 0)
{
ret = Regex.Replace(ret, @"\s{2,}", " ");
}
if ((trim & TransformRules.TildaToSpace) == TransformRules.TildaToSpace)
{
ret = ret.Replace("~", " ");
}
if ((trim & TransformRules.BackqToDouble) == TransformRules.BackqToDouble)
{
ret = ret.Replace("`", "\"");
}
if ((trim & TransformRules.CurvedToAngle) == TransformRules.CurvedToAngle)
{
ret = ret.Replace("{", "<").Replace("}", ">");
}
if ((trim & TransformRules.SquareToAngle) == TransformRules.SquareToAngle)
{
ret = ret.Replace("[", "<").Replace("]", ">");
}
if ((trim & TransformRules.NewLineToLF) == TransformRules.NewLineToLF)
{
ret = ret.Replace("\r\n", "\n").Replace("\r", "\n");
}
if ((trim & TransformRules.NewLineToCRLF) == TransformRules.NewLineToCRLF)
{
ret = ret.Replace("\r\n", "\n").Replace("\r", "\n").Replace("\n", "\r\n");
}
if ((trim & TransformRules.DoubleSingleQuotes) == TransformRules.DoubleSingleQuotes)
{
ret = ret.Replace("'", "''");
}
if ((trim & TransformRules.EscapeHtml) == TransformRules.EscapeHtml)
{
ret = Utils.EscapeHtml(ret);
}
if ((trim & TransformRules.EscapeXml) == TransformRules.EscapeXml)
{
ret = Utils.EscapeXml(ret);
}
if ((trim & TransformRules.QuoteArg) == TransformRules.QuoteArg)
{
ret = QuoteArg(ret);
}
if ((trim & TransformRules.EscapeRegex) == TransformRules.EscapeRegex)
{
ret = Regex.Escape(ret);
}
if ((trim & TransformRules.RemoveControl) == TransformRules.RemoveControl)
{
char[] ch = ret.ToCharArray();
for (int i = 0; i < ch.Length; ++i)
{
if (char.IsControl(ch[i]))
{
ch[i] = (char)127;
}
}
ret = new string(ch);
}
if ((trim & TransformRules.EscapeC) == TransformRules.EscapeC)
{
StringBuilder sb = new StringBuilder(ret.Length + 20);
foreach (var c in ret)
{
switch (c)
{
case '\0': sb.Append(@"\0"); break;
case '\v': sb.Append(@"\v"); break;
case '\a': sb.Append(@"\a"); break;
case '\t': sb.Append(@"\t"); break;
case '\r': sb.Append(@"\r"); break;
case '\n': sb.Append(@"\n"); break;
case '\b': sb.Append(@"\b"); break;
case '\f': sb.Append(@"\f"); break;
case '\"': sb.Append("\\\""); break;
case '\'': sb.Append(@"\'"); break;
case '\\': sb.Append(@"\\"); break;
default:
if (c < ' ' || c == '\x7f')
{
sb.Append("\\u" + ((int)(c)).ToString("x4"));
}
else
{
sb.Append(c);
}
break;
}
}
ret = sb.ToString();
}
if ((trim & TransformRules.UnescapeC) == TransformRules.UnescapeC)
{
if (ret.IndexOf('\\') != -1)
{
StringBuilder sb = new StringBuilder(ret.Length + 20);
int pos = 0;
int n;
while ((n = ret.IndexOf('\\', pos)) != -1 && n != ret.Length - 1)
{
sb.Append(ret, pos, n - pos);
switch (ret[n + 1])
{
case 'a': sb.Append('\a'); pos = n + 2; break;
case 'b': sb.Append('\b'); pos = n + 2; break;
case 'f': sb.Append('\f'); pos = n + 2; break;
case 'n': sb.Append('\n'); pos = n + 2; break;
case 'r': sb.Append('\r'); pos = n + 2; break;
case 't': sb.Append('\t'); pos = n + 2; break;
case '0': sb.Append('\0'); pos = n + 2; break;
case '"': sb.Append('\"'); pos = n + 2; break;
case '\'': sb.Append('\''); pos = n + 2; break;
case '\\': sb.Append('\\'); pos = n + 2; break;
case 'u':
case 'x':
n = pos = n + 2;
for (int i = 0; i < 4; ++i)
{
if (ret.Length > n && isHex(ret[n]))
{
n++;
}
else
{
break;
}
}
if (n == pos)
{
sb.Append(ret[pos - 1]);
}
else
{
sb.Append((char)Convert.ToInt16(ret.Substring(pos, n - pos), 16));
}
pos = n;
break;
case 'U':
n = pos = n + 2;
for (int i = 0; i < 8; ++i)
{
if (ret.Length > n && isHex(ret[n]))
{
n++;
}
else
{
break;
}
}
if (n == pos)
{
sb.Append("u");
}
else
{
sb.Append(char.ConvertFromUtf32(Convert.ToInt32(ret.Substring(pos, n - pos), 16)));
}
pos = n;
break;
default:
sb.Append(ret[n + 1]);
pos = n + 1;
break;
}
}
sb.Append(ret, pos, ret.Length - pos);
ret = sb.ToString();
}
}
if ((trim & TransformRules.TabToSpaces8) != 0)
{
StringBuilder sb = new StringBuilder(ret.Length + 20);
int ts = 8;
if ((trim & TransformRules.TabToSpaces4) == TransformRules.TabToSpaces4)
{
ts = 4;
}
if ((trim & TransformRules.TabToSpaces2) == TransformRules.TabToSpaces2)
{
ts = 2;
}
int col = 0;
foreach (var ch in ret)
{
switch (ch)
{
case '\t': sb.Append(' ', ts - col % ts); col += (ts - col % ts); break;
case '\n':
case '\r': col = 0; sb.Append(ch); break;
default: col++; sb.Append(ch); break;
}
}
ret = sb.ToString();
}
return(ret);
}
/// Convert object to string, expand all variables and output
public void Print(object obj, TransformRules rules)
{
_context.WriteLine(_outputType, _context.Transform(obj, rules));
}
/// Constructor accepting variable name, value to set and transformation rules for variable and value
public Set(string name, string value, TransformRules tr)
: this(name,value)
{
Transform = tr;
}
/// Constructor
public SetAttr(string actionId, string name, object value, TransformRules tr) : this(actionId, name, value)
{
Transform = tr;
}
/// Transform string according to the specified rules
public static string TransformStr(string arguments, TransformRules trim)
{
if (arguments == null)
return null;
if ((trim & TransformRules.Expand) != 0)
throw new ArgumentOutOfRangeException("trim", "Expand flag cannot be specified");
string ret;
if ((trim & TransformRules.Multiline) == TransformRules.Multiline)
{
string str = TransformStr(arguments, trim & TransformRules.Trim);
StringReader reader = new StringReader(str);
List<string> list = new List<string>();
while ((str = reader.ReadLine()) != null)
{
list.Add(TransformStr(str, trim & ~TransformRules.Multiline));
}
ret = String.Join(Environment.NewLine, list.ToArray());
return ret;
}
TransformRules tr = trim & TransformRules.Trim;
switch (tr)
{
default:
ret = arguments;
break;
case TransformRules.Trim:
ret = arguments.Trim();
break;
case TransformRules.TrimEnd:
ret = arguments.TrimEnd();
break;
case TransformRules.TrimStart:
ret = arguments.TrimStart();
break;
}
if ((trim & TransformRules.TrimInternal) != 0)
ret = Regex.Replace(ret, @"\s{2,}", " ");
if ((trim & TransformRules.TildaToSpace) == TransformRules.TildaToSpace)
ret = ret.Replace("~", " ");
if ((trim & TransformRules.BackqToDouble) == TransformRules.BackqToDouble)
ret = ret.Replace("`", "\"");
if ((trim & TransformRules.CurvedToAngle) == TransformRules.CurvedToAngle)
ret = ret.Replace("{", "<").Replace("}", ">");
if ((trim & TransformRules.SquareToAngle) == TransformRules.SquareToAngle)
ret = ret.Replace("[", "<").Replace("]", ">");
if ((trim & TransformRules.NewLineToLF) == TransformRules.NewLineToLF)
ret = ret.Replace("\r\n", "\n").Replace("\r", "\n");
if ((trim & TransformRules.NewLineToCRLF) == TransformRules.NewLineToCRLF)
ret = ret.Replace("\r\n", "\n").Replace("\r", "\n").Replace("\n", "\r\n");
if ((trim & TransformRules.DoubleSingleQuotes) == TransformRules.DoubleSingleQuotes)
ret = ret.Replace("'", "''");
if ((trim & TransformRules.EscapeHtml) == TransformRules.EscapeHtml)
ret = Utils.EscapeHtml(ret);
if ((trim & TransformRules.EscapeXml) == TransformRules.EscapeXml)
ret = Utils.EscapeXml(ret);
if ((trim & TransformRules.QuoteArg) == TransformRules.QuoteArg)
ret = QuoteArg(ret);
if ((trim & TransformRules.EscapeRegex) == TransformRules.EscapeRegex)
ret = Regex.Escape(ret);
if ((trim & TransformRules.RemoveControl) == TransformRules.RemoveControl)
{
char[] ch = ret.ToCharArray();
for (int i = 0; i < ch.Length; ++i)
if (char.IsControl(ch[i]))
ch[i] = (char)127;
ret = new string(ch);
}
if ((trim & TransformRules.EscapeC) == TransformRules.EscapeC)
{
StringBuilder sb = new StringBuilder(ret.Length+20);
foreach (var c in ret)
{
switch (c)
{
case '\0': sb.Append(@"\0"); break;
case '\v': sb.Append(@"\v"); break;
case '\a': sb.Append(@"\a"); break;
case '\t': sb.Append(@"\t"); break;
case '\r': sb.Append(@"\r"); break;
case '\n': sb.Append(@"\n"); break;
case '\b': sb.Append(@"\b"); break;
case '\f': sb.Append(@"\f"); break;
case '\"': sb.Append("\\\""); break;
case '\'': sb.Append(@"\'"); break;
case '\\': sb.Append(@"\\"); break;
default:
if (c < ' ' || c == '\x7f')
sb.Append("\\u" + ((int)(c)).ToString("x4"));
else
sb.Append(c);
break;
}
}
ret=sb.ToString();
}
if ((trim & TransformRules.UnescapeC) == TransformRules.UnescapeC)
{
if (ret.IndexOf('\\')!=-1)
{
StringBuilder sb = new StringBuilder(ret.Length + 20);
int pos = 0;
int n;
while ((n=ret.IndexOf('\\',pos))!=-1 && n!=ret.Length-1)
{
sb.Append(ret, pos, n - pos);
switch (ret[n + 1])
{
case 'a': sb.Append('\a'); pos = n + 2; break;
case 'b': sb.Append('\b'); pos = n + 2; break;
case 'f': sb.Append('\f'); pos = n + 2; break;
case 'n': sb.Append('\n'); pos = n + 2; break;
case 'r': sb.Append('\r'); pos = n + 2; break;
case 't': sb.Append('\t'); pos = n + 2; break;
case '0': sb.Append('\0'); pos = n + 2; break;
case '"': sb.Append('\"'); pos = n + 2; break;
case '\'': sb.Append('\''); pos = n + 2; break;
case '\\': sb.Append('\\'); pos = n + 2; break;
case 'u':
case 'x':
n=pos = n + 2;
for (int i = 0; i < 4; ++i)
if (ret.Length > n && isHex(ret[n]))
n++;
else
break;
if (n == pos)
sb.Append(ret[pos-1]);
else
sb.Append((char)Convert.ToInt16(ret.Substring(pos,n-pos),16));
pos = n;
break;
case 'U':
n = pos = n + 2;
for (int i = 0; i < 8; ++i)
if (ret.Length > n && isHex(ret[n]))
n++;
else
break;
if (n == pos)
sb.Append("u");
else
sb.Append(char.ConvertFromUtf32(Convert.ToInt32(ret.Substring(pos, n - pos), 16)));
pos = n;
break;
default:
sb.Append(ret[n + 1]);
pos = n + 1;
break;
}
}
sb.Append(ret, pos, ret.Length - pos);
ret=sb.ToString();
}
}
if ((trim & TransformRules.TabToSpaces8) != 0)
{
StringBuilder sb = new StringBuilder(ret.Length + 20);
int ts = 8;
if ((trim & TransformRules.TabToSpaces4) == TransformRules.TabToSpaces4) ts = 4;
if ((trim & TransformRules.TabToSpaces2) == TransformRules.TabToSpaces2) ts = 2;
int col = 0;
foreach (var ch in ret)
{
switch (ch)
{
case '\t': sb.Append(' ', ts - col % ts); col += (ts - col % ts); break;
case '\n':
case '\r': col = 0; sb.Append(ch); break;
default: col++; sb.Append(ch); break;
}
}
ret = sb.ToString();
}
return ret;
}
/// Constructor
public CallParam(string name, object value, TransformRules transformRules)
{
Name = name;
Value = value;
Transform = transformRules;
}
///<summary>Transform string to another string</summary>
///<param name="source">Original variable value</param>
///<param name="rules">Transformation rules (<see cref="TransformRules"/></param>
///<returns>Transformed string</returns>
public string TransformStr(string source, TransformRules rules)
{
return(Utils.To <string>(Transform(source, rules)));
}
/// Convert object to string, expand all variables and output
public void Print(object obj, TransformRules rules)
{
_context.WriteLine(_outputType, _context.Transform(obj,rules));
}
/// Constructor
public VersionInfo()
{
Transform = TransformRules.Expand;
}
