public override void Visit(Module pair)
{
PrintNodeName(pair);
PrintNodeStart(pair);
base.Visit(pair);
PrintNodeEnd(pair);
}
private string VerifyScopeName(string name, Interval nameInterval, Module module)
{
if (string.IsNullOrEmpty(name))
{
return(name);
}
return(VerifyNsName(name, nameInterval, module));
}
private string VerifyNsName(string name, Interval nameInterval, Module module)
{
if (Regex.Match(name, @"^[a-zA-Z_][a-zA-Z0-9_\-]*$").Success)
{
return(name);
}
_context.Errors.Add(CompilerErrorFactory.InvalidNsName(nameInterval, module.FileName));
return(name);
}
/// <summary>
/// Creates instance of the <see cref="Parser"/>.
/// </summary>
/// <param name="input">Stream of characters for parsing.</param>
/// <param name="pairFactory">Pair factory is used to create DOM structure of the Syntactik document.</param>
/// <param name="root"><see cref="DOM.Module"/> object is used as root of DOM structure.</param>
/// <param name="processJsonBrackets">If true, parser will process {} and [] brackets.</param>
public Parser(ICharStream input, IPairFactory pairFactory, DOM.Module root, bool processJsonBrackets = false)
{
_input = input;
_pairFactory = pairFactory;
_pairStack = new Stack <PairIndentInfo>();
_pairStack.Push(new PairIndentInfo {
Pair = root
});
_module = root;
_processJsonBrackets = processJsonBrackets;
}
private string VerifyName(string name, Interval nameInterval, Module module)
{
try
{
XmlConvert.VerifyNCName(name);
}
catch (Exception)
{
_context.Errors.Add(CompilerErrorFactory.InvalidName(nameInterval, module.FileName));
}
return(name);
}
private string VerifyElementName(string name, Interval nameInterval, Module module)
{
if (string.IsNullOrEmpty(name))
{
return(name);
}
try
{
XmlConvert.VerifyNCName(name);
}
catch (XmlException)
{
_context.Errors.Add(CompilerErrorFactory.InvalidXmlElementName(nameInterval, module.FileName));
}
return(name);
}
private static Alias GetAliasInterpolationItem(Match match, int line, int column, CompilerContext context,
Module module)
{
if (match.Value.StartsWith(@"\$(") && !match.Value.EndsWith(@")"))
{
context.Errors.Add(CompilerErrorFactory.ParserError("Missing closing parenthesis.", module.FileName, line, column + match.Length));
}
var alias = new Alias
(
name: match.Value.TrimStart('\\', '$', '(', '\t', ' ').TrimEnd(')', '\t', ' '),
nameInterval: new Interval(new CharLocation(line, column, -1),
new CharLocation(line, column + match.Value.Length, -1)),
assignment: AssignmentEnum.None,
value: null,
valueType: ValueType.Empty,
isValueNode: true
);
return(alias);
}
private static EscapeMatch GetEscapeInterpolationItem(Match match, int line, int column,
CompilerContext context, Module module)
{
var escape = match.Value;
if (escape.Length < 2)
{
context.Errors.Add(CompilerErrorFactory.ParserError("Invalid escape sequence.", module.FileName, line, column));
}
else
{
switch (escape[1])
{
//'b'|'f'|'n'|'r'|'t'|'v'
case '"':
case '\\':
case '/':
case 'b':
case 'f':
case 'n':
case 'r':
case 't':
case 'v':
break;
case 'u':
if (match.Length < 6)
{
context.Errors.Add(CompilerErrorFactory.ParserError("Invalid escape sequence.", module.FileName, line, column));
}
break;
default:
context.Errors.Add(CompilerErrorFactory.ParserError("Invalid escape sequence.", module.FileName, line, column));
break;
}
}
return(new EscapeMatch {
Value = match.Value
});
}
/// <summary>
/// Creates instance of <see cref="PairFactoryForXml"/>.
/// </summary>
/// <param name="context"><see cref="CompilerContext"/> used to report errors.</param>
/// <param name="module">Current module.</param>
public PairFactoryForXml(CompilerContext context, Module module)
{
_context = context;
_module = module;
}
internal static List <object> GetInterpolationItems(ITextSource input, Interval valueInterval,
CompilerContext context, Module module)
{
var intItems = new List <object>();
var i = ValueIsMissingQuote(input, '"', valueInterval) ? 0 : -1;
var value = input.GetText(valueInterval.Begin.Index + 1, valueInterval.End.Index + i);
var matches = Regex.Matches(value,
//Escape characters
@"(\\(?:[""\\\/bfnrt]|u[a-fA-F0-9]{0,4}|" +
//Alias or parameter with brackets
@"(?:\$|!%)\([ \t]*(?:(?:_|[A-Z]|[a-z]|[\xC0-\xD6]|[\xD8-\xF6]|[\xF8-\u02FF]|[\u0370-\u037D]|[\u037F-\u1FFF]|[\u200C-\u200D]|[\u2070-\u218F]|[\u2C00-\u2FEF]|[\u3001-\uD7FF]|[\uF900-\uFDCF]|[\uFDF0-\uFFFD])" +
@"(?:[A-Z]|[a-z]|[\xC0-\xD6]|[\xD8-\xF6]|[\xF8-\u02FF]|[\u0370-\u037D]|[\u037F-\u1FFF]|[\u200C-\u200D]|[\u2070-\u218F]|[\u2C00-\u2FEF]|[\u3001-\uD7FF]|[\uF900-\uFDCF]|[\uFDF0-\uFFFD]|" +
@"-|\.|[0-9]|\xB7|[\u0300-\u036F]|[\u203F-\u2040])*)[ \t]*\)?|" +
//Alias or parameter without brackets
@"(?:\$|!%)(?:(?:_|[A-Z]|[a-z]|[\xC0-\xD6]|[\xD8-\xF6]|[\xF8-\u02FF]|[\u0370-\u037D]|[\u037F-\u1FFF]|[\u200C-\u200D]|[\u2070-\u218F]|[\u2C00-\u2FEF]|[\u3001-\uD7FF]|[\uF900-\uFDCF]|[\uFDF0-\uFFFD])" +
@"(?:[A-Z]|[a-z]|[\xC0-\xD6]|[\xD8-\xF6]|[\xF8-\u02FF]|[\u0370-\u037D]|[\u037F-\u1FFF]|[\u200C-\u200D]|[\u2070-\u218F]|[\u2C00-\u2FEF]|[\u3001-\uD7FF]|[\uF900-\uFDCF]|[\uFDF0-\uFFFD]|" +
@"-|\.|[0-9]|\xB7|[\u0300-\u036F]|[\u203F-\u2040])*)" +
//Incorrect escape, indent, new line, other characters
@"|.?))|(\r?\n[ \t]*)|([^\\\0-\x1F\x7F]+)", RegexOptions.Singleline);
var line = valueInterval.Begin.Line;
var column = valueInterval.Begin.Column;
foreach (var match in matches)
{
if (((Match)match).Value.StartsWith(@"\$"))
{
intItems.Add(GetAliasInterpolationItem((Match)match, line, column + 1, context, module));
}
else if (((Match)match).Value.StartsWith(@"\!%"))
{
intItems.Add(GetParameterInterpolationItem((Match)match, line, column + 1, context, module));
}
else if (((Match)match).Value.StartsWith(@"\"))
{
intItems.Add(GetEscapeInterpolationItem((Match)match, line, column + 1, context, module));
}
else if (((Match)match).Value.StartsWith("\n") || ((Match)match).Value.StartsWith("\r"))
{
intItems.Add(GetEolEscapeInterpolationItem((Match)match));
}
else
{
intItems.Add(((Match)match).Value);
}
if (((Match)match).Value.StartsWith("\n"))
{
line++;
column = ((Match)match).Value.Length;
}
else if (((Match)match).Value.StartsWith("\r"))
{
line++;
column = ((Match)match).Value.Length + 1;
}
else
{
column += ((Match)match).Value.Length;
}
}
return(intItems);
}
internal static Tuple <string, List <object> > GetValue(ITextSource input, AssignmentEnum assignment,
int valueQuotesType, Interval valueInterval, int valueIndent, CompilerContext context, Module module)
{
if (valueInterval == null)
{
if (assignment == AssignmentEnum.E || assignment == AssignmentEnum.EE)
{
return(new Tuple <string, List <object> >(string.Empty, null));
}
return(new Tuple <string, List <object> >(null, null));
}
if (valueInterval.Begin.Index == -1)
{
return(new Tuple <string, List <object> >(string.Empty, null));
}
if (valueQuotesType == '\'')
{
if (!ValueIsMissingQuote(input, valueQuotesType, valueInterval))
{
return(new Tuple <string, List <object> >(GetValueFromValueInterval(input, assignment,
valueQuotesType,
valueInterval.Begin.Index + 1, valueInterval.End.Index - 1, valueIndent), null));
}
return(new Tuple <string, List <object> >(GetValueFromValueInterval(input, assignment,
valueQuotesType,
valueInterval.Begin.Index + 1, valueInterval.End.Index, valueIndent), null));
}
if (valueQuotesType == '"')
{
var ii = GetInterpolationItems(input, valueInterval, context, module);
string value = (string)(ii.Count == 1 && ii[0] is string?ii[0] : string.Empty);
return(new Tuple <string, List <object> >(value, ii));
}
return(new Tuple <string, List <object> >(GetValueFromValueInterval(input, assignment,
valueQuotesType,
valueInterval.Begin.Index, valueInterval.End.Index, valueIndent), null));
}
private static Parameter GetParameterInterpolationItem(Match match, int line, int column, CompilerContext context, Module module)
{
if (match.Value.StartsWith(@"\!%(") && !match.Value.EndsWith(@")"))
{
context.Errors.Add(CompilerErrorFactory.ParserError("Missing closing parenthesis.", module.FileName, line, column + match.Length));
}
var parameter = new Parameter
{
Name = match.Value.TrimStart('\\', '!', '%', '(', '\t', ' ').TrimEnd(')', '\t', ' '),
NameInterval = new Interval(new CharLocation(line, column, -1), new CharLocation(line, column + match.Value.Length, -1)),
Delimiter = DelimiterEnum.None,
ValueType = ValueType.Empty,
IsValueNode = true
};
return(parameter);
}
internal static Tuple <string, List <object> > GetValue(ICharStream input, DOM.DelimiterEnum delimiter,
int valueQuotesType, DOM.Interval valueInterval, int valueIndent, CompilerContext context, Module module)
{
if (valueInterval == null)
{
if (delimiter == DOM.DelimiterEnum.E || delimiter == DOM.DelimiterEnum.EE)
{
return(new Tuple <string, List <object> >(string.Empty, null));
}
return(new Tuple <string, List <object> >(null, null));
}
if (valueInterval.Begin.Index == -1)
{
return(new Tuple <string, List <object> >(string.Empty, null));
}
if (valueQuotesType == (int)DOM.QuotesEnum.Single)
{
if (!ValueIsMissingQuote(input, valueQuotesType, valueInterval))
{
return(new Tuple <string, List <object> >(GetValueFromValueInterval((ITextSource)input, delimiter, valueQuotesType,
valueInterval.Begin.Index + 1, valueInterval.End.Index - 1, valueIndent), null));
}
return(new Tuple <string, List <object> >(GetValueFromValueInterval((ITextSource)input, delimiter, valueQuotesType,
valueInterval.Begin.Index + 1, valueInterval.End.Index, valueIndent), null));
}
if (valueQuotesType == (int)QuotesEnum.Double)
{
var ii = GetInterpolationItems((ITextSource)input, valueInterval, context, module);
string value = (string)(ii.Count == 1 && ii[0] is string?ii[0] : string.Empty);
return(new Tuple <string, List <object> >(value, ii));
}
return(new Tuple <string, List <object> >(GetValueFromValueInterval((ITextSource)input, delimiter, valueQuotesType,
valueInterval.Begin.Index, valueInterval.End.Index, valueIndent), null));
}