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Unified Diff: pkg/string_scanner/lib/src/span_scanner.dart

Issue 812253002: Delete a bunch of packages that are now on GitHub. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Un-delete http Created 6 years ago
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Index: pkg/string_scanner/lib/src/span_scanner.dart
diff --git a/pkg/string_scanner/lib/src/span_scanner.dart b/pkg/string_scanner/lib/src/span_scanner.dart
deleted file mode 100644
index 2a78b5bc0b0d524e6ae1b9b88e7a29ed588dd9c5..0000000000000000000000000000000000000000
--- a/pkg/string_scanner/lib/src/span_scanner.dart
+++ /dev/null
@@ -1,100 +0,0 @@
-// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-library string_scanner.span_scanner;
-
-import 'package:source_span/source_span.dart';
-
-import 'exception.dart';
-import 'line_scanner.dart';
-import 'string_scanner.dart';
-import 'utils.dart';
-
-/// A subclass of [LineScanner] that exposes matched ranges as source map
-/// [Span]s.
-class SpanScanner extends StringScanner implements LineScanner {
- /// The source of the scanner.
- ///
- /// This caches line break information and is used to generate [Span]s.
- final SourceFile _sourceFile;
-
- int get line => _sourceFile.getLine(position);
- int get column => _sourceFile.getColumn(position);
-
- LineScannerState get state => new _SpanScannerState(this, position);
-
- set state(LineScannerState state) {
- if (state is! _SpanScannerState ||
- !identical((state as _SpanScannerState)._scanner, this)) {
- throw new ArgumentError("The given LineScannerState was not returned by "
- "this LineScanner.");
- }
-
- this.position = state.position;
- }
-
- /// The [FileSpan] for [lastMatch].
- ///
- /// This is the span for the entire match. There's no way to get spans for
- /// subgroups since [Match] exposes no information about their positions.
- FileSpan get lastSpan => _lastSpan;
- FileSpan _lastSpan;
-
- /// The current location of the scanner.
- FileLocation get location => _sourceFile.location(position);
-
- /// Returns an empty span at the current location.
- FileSpan get emptySpan => location.pointSpan();
-
- /// Creates a new [SpanScanner] that starts scanning from [position].
- ///
- /// [sourceUrl] is used as [SourceLocation.sourceUrl] for the returned
- /// [FileSpan]s as well as for error reporting. It can be a [String], a
- /// [Uri], or `null`.
- SpanScanner(String string, {sourceUrl, int position})
- : _sourceFile = new SourceFile(string, url: sourceUrl),
- super(string, sourceUrl: sourceUrl, position: position);
-
- /// Creates a [FileSpan] representing the source range between [startState]
- /// and the current position.
- FileSpan spanFrom(LineScannerState startState, [LineScannerState endState]) {
- var endPosition = endState == null ? position : endState.position;
- return _sourceFile.span(startState.position, endPosition);
- }
-
- bool matches(Pattern pattern) {
- if (!super.matches(pattern)) {
- _lastSpan = null;
- return false;
- }
-
- _lastSpan = _sourceFile.span(position, lastMatch.end);
- return true;
- }
-
- void error(String message, {Match match, int position, int length}) {
- validateErrorArgs(string, match, position, length);
-
- if (match == null && position == null && length == null) match = lastMatch;
- if (position == null) {
- position = match == null ? this.position : match.start;
- }
- if (length == null) length = match == null ? 1 : match.end - match.start;
-
- var span = _sourceFile.span(position, position + length);
- throw new StringScannerException(message, span, string);
- }
-}
-
-/// A class representing the state of a [SpanScanner].
-class _SpanScannerState implements LineScannerState {
- /// The [SpanScanner] that created this.
- final SpanScanner _scanner;
-
- final int position;
- int get line => _scanner._sourceFile.getLine(position);
- int get column => _scanner._sourceFile.getColumn(position);
-
- _SpanScannerState(this._scanner, this.position);
-}
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