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author | Hugo Hörnquist <hugo@lysator.liu.se> | 2019-03-22 20:11:11 +0100 |
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committer | Hugo Hörnquist <hugo@lysator.liu.se> | 2019-03-22 20:17:52 +0100 |
commit | d46183860c1f3f10095e95023adcb79b1896ab0e (patch) | |
tree | dd331a0efe9777bfe84160139da1e39df3226b71 /module/terminal/escape.scm | |
parent | Add stuff to test.scm. (diff) | |
download | calp-d46183860c1f3f10095e95023adcb79b1896ab0e.tar.gz calp-d46183860c1f3f10095e95023adcb79b1896ab0e.tar.xz |
Move C and Scheme code into subdirs.
Diffstat (limited to 'module/terminal/escape.scm')
-rw-r--r-- | module/terminal/escape.scm | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/module/terminal/escape.scm b/module/terminal/escape.scm new file mode 100644 index 00000000..8f1b0c2b --- /dev/null +++ b/module/terminal/escape.scm @@ -0,0 +1,28 @@ +;;; Module for terminal (ANSI) escape codes. + +(define-module (terminal escape) + #:use-module (srfi srfi-60) + #:use-module (terminal termios) + #:export (with-vulgar)) + +(define-public (cls) + (display "\x1b[H") ; Move cursor to the origin + (display "\x1b[J") ; Clear everything after cursor + ) + +;;; I don't curse, I'm just vulgar. + +(define-syntax with-vulgar + (syntax-rules () + ((_ thunk) + (let ((ifd (fileno (current-input-port))) + (ofd (fileno (current-output-port)))) + (dynamic-wind + (lambda () + (let ((bits (bitwise-ior ECHO ICANON))) + (c-lflags-disable! ifd bits) + (c-lflags-disable! ofd bits))) + thunk + (lambda () + (c-lflag-restore! ifd) + (c-lflag-restore! ofd)))) ))) |