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

humanTable.go

@@ -14,6 +14,7 @@ import (
 //	log.Info(standardTableSize10(sizes, args))
 
 func StandardTableSize5(sizes []int, args []string) string {
+	WIDTH, _ := getTerminalWidth()
 	var s string
 	for i, si := range sizes {
 		if si == 0 {
@@ -32,19 +33,13 @@ func StandardTableSize5(sizes []int, args []string) string {
 	arg4 := args[3]
 	arg5 := args[4]
 
-	return fmt.Sprintf(s, arg1, arg2, arg3, arg4, arg5)
+	all := fmt.Sprintf(s, arg1, arg2, arg3, arg4, arg5)
+	return all[0:WIDTH]
 }
 
-/*
-func standardTable10(arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10 string) string {
-	args := []string{arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10}
-	sizes := []int{40, 12, 6, 12, 16, 16, 16, 12, 12, 8}
-
-	return standardTableSize10(sizes, args)
-}
-*/
-
 func StandardTableSize10(sizes []int, args []string) string {
+	WIDTH, _ := getTerminalWidth()
+	// log.Info("WIDTH IS", WIDTH)
 	var s string
 	for i, si := range sizes {
 		if si == 0 {
@@ -68,5 +63,12 @@ func StandardTableSize10(sizes []int, args []string) string {
 	arg9 := args[8]
 	arg10 := args[9]
 
-	return fmt.Sprintf(s, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10)
+	all := fmt.Sprintf(s, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10)
+	var small int
+	if len(all) > WIDTH {
+		small = WIDTH
+	} else {
+		small = len(all) - 3
+	}
+	return all[0:small]
 }

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])
+}