Windows NT doesnt support ANSI by default. It is possible to disable ANSI in OS/2 with the command ANSI OFF Likewise you may enable it again with ANSI ON. This allows me to change the title in Windows' default console window and in emulators like ConEmu. To use ANSI sequences on DOS command prompts in OS/2 youll still need to load ANSI.SYS in CONFIG.SYS. To better achieve my particular ends, I ended up writing a module- console-title-that changes the console's title by writing the ANSI escape sequence on unix and calls the appropriate native API under Windows. You must actually be using a terminal emulator of some kind that supports ANSI escape codes.) (Of course this does not give the Windows console any magical new abilities it will simply print the sequence verbatim and look like garbage. Writing ANSI escape sequences to rawStdout will be emitted properly to the terminal. var rawStdout = new fs.SyncWriteStream(1, ) This can be worked around from user code by opening a raw filesystem stream on fd 1. Unknown and unsupported sequences are silently ignored.Īs a consequence, any unrecognized commands are discarded between JS calling () and the internal call to WriteConsoleW() (where node actually outputs to the terminal). Mefford's ANSI. Some replacements or additions for the console window such as JP Software's TCC (formerly 4NT), Michael J. This is what makes things like colors and repositioning the cursor work in Windows, since the Windows console does not support ANSI escape sequences. The Windows Console did not support ANSI escape sequences, nor did Microsoft provide any method to enable them. However, when node is connected to an interactive terminal in Windows, it (via libuv) actually parses all ANSI escape codes so that it can transparently emulate a unix TTY terminal using Windows APIs. Thus, running node test > out.txt produces expected results. When node's stdout is connected to a non-interactive sink (ie piped or redirected to a file), bytes written to process.stdout are written as-is.
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