jsontool

Add index-returning string match methods to JSON-reader.

• Adds expectStringIndex, tryStringIndex, and tryKeyIndex to JsonReader. Allows matching a string in a list, like the non-Index` operations, but returns in the position in the list instead of the string at that position.
• Adds JsonReader.fail which returns a FormatException at the current position in the reader, with a user provided error message.

Update to new language version (3.0+) and lints.

Add class modifiers on classes. Most final.

Change return type of some void methods to Null,
to allow chaining them after, for example, tryString() ??,
as a default fallback.

Optimize whitespace skipping.

Make ByteReader and StringReader sources more in sync.

• Require SDK 3.3.0+.

• Adds class modifiers.

• Update lints.

• Change some void return types to Null in JsonReader This allows uses like reader.tryString() ?? reader.expectNull() to match a string or null.

• Adds processObjectEntry method to JsonProcessor, called for each object entry.

• Use table to improve parsing speed for skipAnyValue.

• Faster whitespace skipping in readers.

Accept Dart 3.0 SDK, tweaks in byte_writer.

• Allow SDK 3.0.0+.
• Tweak ByteWriter implementation.

• Optimizes to avoid or cheapen as casts where possible. Uses as dynamic with a context type where a cast cannot be avoided, for better dart2js performance.

• Populate the pubspec's repository field.
• Use package:lints for linting.
• Adds processObjectEntry to JsonProcessor.

• Null safe.
• Adds JsonWriter for JSON sinks which generate JSON-like structures. Allows injecting "source" (of a matching format) directly into the structure.
• Adds JsonProcessor. Like a JsonSink but gets the JsonReader so it can process the values itself instead of getting the processed value.
• Adds JsonReader.hasNextKey and some methods on StringSlice.

• Add CHANGELOG.md.

• Initial Release