WebTerm Terminal Emulator and Telnet Client

Version History

Known Bugs

• Inserting a character into the middle of text in emacs moves the right side of the line two columns to the right instead of one.

Changes in v2.0:

Bug fixes

• Completely rewrote VT100 escape sequence parser; it is now much more ANSI-compliant and robust.
• Fixed many race conditions in Terminal and Telnet classes.
• Telnet now uses a DataOutputStream for writing to its socket; directly writing to the socket's stream wasn't working on the Mac.
• Wasn't catching exceptions when attempting to create fonts.

New features

• New "Options" window and button, allows dynamic loading and selection of emulators.
• Added scrollable session mechanism to terminal.
• Added basic color support to terminal.
• New terminal modes: smooth scroll (well, not really that smooth), newline-does-CR, no wrapping, and inverse.
• Slight optimizations to display rendering: keeps track of which lines have changed.
• Added VT200 and VT52 emulation; expanded the XTerm and VT100 emulations, and changed the class's name to "VT200". Many many new control sequences are supported.
• Telnet keeps track of both local and server options.
• Telnet now allows the BINARY, TERMINAL-SPEED, and NAOHTD options, but this isn't yet very well supported.
• Now locally echos characters back the terminal when the TELNET server refuses to go into ECHO mode.
• Lots of general code clean-up and documentation.

Changes in v1.3:

Bug fixes

• Thread.setDaemon() is an insecure method in Netscape 3.0, causing the applet to crash when connecting. It is no longer called.
• Now correctly handles smaller applet sizes.
• Slight fixes to VT100 emulation.
• The Telnet class now correctly handles multiple names from an emulation.
• Cleaned up source: split into multiple files.

New features

• Added REGISTRY and FONTSIZE parameters.
• Registers itself with a ClassRegistry, so that other applets can insert text into its input stream with a "send" command.
• Cleaned up font allocation, now handles bold and italic fonts.
• The VT100 emulation now also identifies itself as "XTERM" and "VT100", in addition to the original "DEC-VT100" type. The xterm emulation should probably, at some point, be moved into a separate class.

Changes in v1.2:

• Added support for text styles.

Changes in v1.1:

• Added PROMPT#, REPLY#, and ENDPROMPT# arguments.