truncate lines at stty -a row (or col, notsure)

1 files changed, 37 insertions, 0 deletions

diff --git a/termSize.go b/termSize.go
new file mode 100644
index 0000000..133bba7
--- /dev/null
+++ b/termSize.go
@@ -0,0 +1,37 @@
+package cobol
+
+import (
+	"log"
+	"os"
+
+	"golang.org/x/term"
+)
+
+var WIDTH int = 120
+
+// getTerminalWidth returns the width of the active terminal.
+// If the output is not an interactive terminal (e.g., it's being piped to a file
+// or another command), it returns a default width and false.
+func getTerminalWidth() (int, bool) {
+	// term.IsTerminal checks if the given file descriptor is connected to a terminal.
+	// We use os.Stdout.Fd() to check the standard output.
+	if term.IsTerminal(int(os.Stdout.Fd())) {
+		var err error
+		// term.GetSize returns the dimensions of the given terminal.
+		WIDTH, _, err = term.GetSize(int(os.Stdout.Fd()))
+		if err != nil {
+			// If we can't get the size for some reason, fall back to the default.
+			log.Printf("could not get terminal size: %v", err)
+			return WIDTH, false
+		}
+		return WIDTH, true
+	}
+
+	// If it's not a terminal, return the default width.
+	return WIDTH, false
+}
+
+func TerminalCut(cut string) {
+	i, _ := getTerminalWidth()
+	log.Printf("%s\n", cut[0:i])
+}