public Parser(
MarkedString source,
Dictionary <string, Variable> vars,
Dictionary <string, MethodOperation.Factory> funcs
) :
base(new VarAssignLexer(source, vars, funcs), vars, funcs)
{
}
public static IBaseExpression Parse(
MarkedString expr,
Dictionary <string, Variable> vars,
Dictionary <string, MethodOperation.Factory> funcs
)
{
return(new Parser(expr, vars, funcs).Parse());
}
public void RevertToCopy(MarkedString other)
{
pos = other.pos;
cachedPos = other.cachedPos;
Line = other.Line;
CachedLine = other.CachedLine;
CharInLine = other.CharInLine;
CachedCharInLine = other.CachedCharInLine;
}
public int Match(MarkedString source)
{
var res = source.MatchOne(regex);
if (!res.Success)
{
LastError = "no match for '" + regex.ToString() + "' regex";
}
else
{
LastError = "";
}
lastMatch = res.Value;
return(res.Success ? res.Length : -1);
}
public int Match(MarkedString source)
{
MarkedString saved = source.ShallowCopy();
int last = source.AbsoluteAt;
lastMatch = factory(source);
if (lastMatch == null)
{
source.RevertToCopy(saved);
LastError = "cannot parse " + name;
return(-1);
}
int res = source.AbsoluteAt - last;
source.RevertToCopy(saved);
return(res);
}
public static VarDefStatement Parse(
MarkedString source,
Dictionary <string, Variable> vars
) =>
new Parser(source, vars).Parse();
public static VarAssignStatement Parse(
MarkedString source,
Dictionary <string, Variable> vars,
Dictionary <string, MethodOperation.Factory> funcs
) => new Parser(source, vars, funcs).Parse();
public Parser(MarkedString source, Dictionary <string, Variable> vars) :
base(new VarDefLexer(source), vars)
{
}