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88b8cb3e21
Not 100% sure why this only really manifested on Windows, but the symptoms were: * Run powershell in a tab * Run `dir` * Hit enter a couple of times to show a couple of prompts * Try using the mouse to select across the prompt boundaries The selection would get invalidated crossing the boundaries. I traced this down to the lines around those regions having SEQ_ZERO as their sequence, so this commit ensures that lines that are created as part of scrolling the screen are correctly tagged with the current seqno from the terminal display. Why only windows? Not totally sure; perhaps it is related to something funky happening in the conpty layer and sending us unusual escapes (eg: scroll margins?) |
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Terminal Wizardry
This is a rust crate that provides a number of support functions for applications interested in either displaying data to a terminal or in building a terminal emulator.
It is currently in active development and subject to fairly wild sweeping changes.
Included functionality:
Surfacemodels a terminal display and its componentCells- Terminal attributes are aware of modern features such as True Color, Hyperlinks and will also support sixel and iterm style terminal graphics display.
Surfaces include a log ofChanges and an API for consuming and applying deltas. This is a powerful building block for synchronizing screen instances.- Escape sequence parser decodes inscrutable escape sequences and gives them semantic meaning, making the code that uses them clearer. The decoded escapes can be re-encoded, allowing applications to start with the semantic meaning and emit the appropriate escape sequence without embedding obscure binary bytes.
Capabilitiesallows probing for terminal capabilities that may not be included in the system terminfo database, and overriding them in an embedding application.Terminaltrait provides an abstraction over unix style ttys and Windows style console APIs.Changes fromSurfacecan be rendered toTerminals.Terminals allow decoding mouse and keyboard inputs in both blocking or non-blocking mode.Widgettrait allows composition of UI elements at a higher level.LineEditorimplements shell-like line editing functionality.
Windows Support
Termwiz understands how to work with both the legacy console APIs and the new PTY and virtual terminal features available in Windows 10, allowing for true color terminal applications on Windows 10.