cli_script

Add LineStreamExtensions.withSpans(), which adds SourceSpanWithContexts to a stream's lines for better error messaging and debugging.

Add readWithSpans(), which adds SourceSpanWithContexts to a file's lines for better error messaging and debugging.

Add LineAndSpanStreamExtensions, which provides various extension methods that preserve source spans.

Add an onlyMatching flag to grep() which prints the sections of input lines that match the given regular expression.

Add a teeToStderr transformer and extension method on Stream<List<String>>. This passes a stream to stderr without modifying it, which is useful for debugging.

Add a Script.mapLines constructor that returns a script that maps stdin lines according to a String Function(String).

Add support for passing a String Function(String) to Script.pipeline and Script.operator | to map stdin lines.

Fold stack frames for a few more packages used internally.

Add a BufferedScript class that buffers output from a Script until it's explicitly released, making it easier to run multiple script in parallel without having their outputs collide with one another.

If the same capture() block both calls print() and writes to currentStdout, ensure that the order of prints is preserved.

If the same capture() block writes to both currentStdout and currentStderr, ensure that the relative order of those writes is preserved when collected with combineOutput().