Textadept 12.5 beta 2

[orbitalquark]

Textadept 12.5 beta 2 is released from https://github.com/orbitalquark/textadept/releases/tag/textadept_12.5_beta_2

The terminal version finally has a timeout() implementation and os.spawn() is properly supported on the Windows terminal version. There are also notable changes involving the ui.print*() and ui.output*() APIs, which have been simplified a bit.

Bugfixes:

• Limit auto-detected indentation to between 2-8 spaces.
• Fixed buffer:set_encoding() for single-byte conversions.
• Fixed os.spawn() in the GTK and terminal versions with a large env table.
• Document -L and --lua in help output.
• Do not advance the incremental search anchor when Find Next is clicked and nothing was found.
• Fixed error when textadept.run.run_without_prompt is enabled, but no command exists.
• Do not accidentally scroll the view if no text was found.
• Edits in typed buffers like Files Found Buffer should not be recorded in history.
• Fixed Find in Files error when searching an empty directory.
• Fixed incorrect buffer switching after clicking the tab close button for a non-focused buffer.
• Fixed error return values for os.spawn():read().
• Fixed view:split() not preserving scroll state.
• Scintilla: fixed flickering cursor after some mouse action sequences.

Changes:

• Removed encodings table argument from io.open_file(); use buffer:set_encoding() as needed.
• Implemented timeout() for the terminal version.
• Renamed _SCINTILLA.new_* functions to view.new_*.
• Improved os.spawn() in the terminal version by using the reproc library.
• quit() now accepts a status code to return after quitting.
• New internal unit test framework.
• events.REPLACE handlers can now return true to prevent subsequent emission of events.FIND.
• Lua Command Entry and ui.print() now print to the Output Buffer (not the Message Buffer).
• Removed ui.print_silent() (use ui.print_silent_to() instead).
• Removed Message Buffer.
• Changed ui.print_to() and ui.print_silent_to() to only accept a single string message.
• Changed ui.output() and ui.output_silent() to only accept strings or numbers.
• textadept.editing.auto_pairs and textadept.editing.select_enclosed support UTF-8 characters.
• Scroll up/down by pages using Alt+PgUp and Alt+PgDn, respectively, on Windows and Linux,
  and ^⇞ and ^⇟ on macOS. (N/A in the terminal version.)
• Removed ui.find.find_in_files(); ui.find.find_next() with ui.find.in_files invokes it.
• textadept.editing.select_line() expands a multi-line selection to include whole lines.
• Scintilla: increase maximum zoom to +60 points.
• Scintilla: added buffer.copy_separator.
• Scintilla: added buffer:line_indent() and buffer:line_dedent() for
  always indenting/dedenting instead of conditionally doing so with buffer:tab() and
  buffer:back_tab().
• Updated to Scintilla 5.5.2.
• Updated to Scinterm 5.1.