public static void AcceptNewLine(this ParserContext context)
{
if (context.CurrentCharacter == '\n')
{
context.AcceptCurrent();
}
else if (context.CurrentCharacter == '\r')
{
context.AcceptCurrent();
if (context.CurrentCharacter == '\n')
{
context.AcceptCurrent();
}
}
}
public static void AcceptCharacters(this ParserContext context, int number)
{
for (int i = 0; i < number; i++)
{
context.AcceptCurrent();
}
}
public static string AcceptUntil(this ParserContext context, SourceLocation location)
{
var builder = new StringBuilder();
while (context.CurrentLocation < location)
{
builder.Append(context.AcceptCurrent());
}
return(builder.ToString());
}
public static void AcceptLine(this ParserContext context, bool includeNewLineSequence)
{
context.AcceptUntil('\r', '\n');
if (!includeNewLineSequence)
{
return;
}
if (context.CurrentCharacter == '\r')
{
context.AcceptCurrent();
if (context.CurrentCharacter == '\n')
{
context.AcceptCurrent();
}
}
else if (context.CurrentCharacter == '\n')
{
context.AcceptCurrent();
}
}
protected void AcceptLineWithBlockComments(ParserContext context, SpanFactory spanFactory)
{
// Read to the end of the line checking for plan9 block comments
bool keepReading = true;
while (keepReading)
{
if (CharUtils.IsNewLine(context.CurrentCharacter))
{
context.AcceptNewLine();
keepReading = false;
}
else if (!TryParseComment(spanFactory))
{
context.AcceptCurrent();
}
}
}
public static bool Accept(this ParserContext context, string expected, bool caseSensitive, out SourceLocation?errorLocation, out char?errorChar)
{
errorLocation = null;
errorChar = null;
using (context.StartTemporaryBuffer()) {
for (int i = 0; i < expected.Length; i++)
{
if (CharsEqual(expected[i], context.CurrentCharacter, caseSensitive))
{
context.AcceptCurrent();
}
else
{
errorLocation = context.CurrentLocation;
errorChar = context.CurrentCharacter;
context.RejectTemporaryBuffer();
return(false);
}
}
context.AcceptTemporaryBuffer();
}
return(true);
}
protected void AcceptLineWithBlockComments(ParserContext context, SpanFactory spanFactory) {
// Read to the end of the line checking for plan9 block comments
bool keepReading = true;
while (keepReading) {
if (CharUtils.IsNewLine(context.CurrentCharacter)) {
context.AcceptNewLine();
keepReading = false;
}
else if (!TryParseComment(spanFactory)) {
context.AcceptCurrent();
}
}
}
