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Update README.md #1

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22 changes: 11 additions & 11 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -203,7 +203,6 @@ private static Lexeme ScanNumber(ILexemeBuilder builder)
? builder.Build(new NumberToken(number))
: throw new Exception("Could not parse number: " + builder.CurrentToken);
}
}
```

## Line position calculation
Expand Down Expand Up @@ -283,16 +282,17 @@ The Match function works very similar to the lexeme factory, when the rule match
This is illustrated in this simple example, where we call `Discard()` to advance the stream only when we create a `Lexeme`.

```cs
public Option<Lexeme> Match(ILexemeBuilder builder)
public Option<Lexeme> Match(ILexemeBuilder builder)
{
if (builder.Peek() is '=')
{
if (builder.Peek() is '=')
{
builder.Discard()
builder.Discard();

return builder.Build(new EqualToken())
} else {
return Option<Lexeme>.None;
}
return builder.Build(new EqualToken());
} else {
return Option<Lexeme>.None;
}
}
```

## Change the default implementations.
Expand Down Expand Up @@ -348,8 +348,8 @@ When registering the reader you have access to the `expression` as given to the
`ILexemeWalker` is usually stateful (track the position and change it on `Pop`) and has two methods to implemlent.

```cs
Lexeme Pop();
Lexeme Peek(int lookAhead = 0);
Lexeme Pop();
Lexeme Peek(int lookAhead = 0);
```

When registering the reader you have access to the `lexemes` and the `newEpsilonToken` factory delegate.
Expand Down