fixed -X output in combination with -c

go.mod

@@ -7,12 +7,12 @@ require (
 	github.com/gookit/color v1.5.2
 	github.com/olekukonko/tablewriter v0.0.5
 	github.com/spf13/cobra v1.5.0
+	github.com/xo/terminfo v0.0.0-20210125001918-ca9a967f8778
 )
 
 require (
 	github.com/inconshreveable/mousetrap v1.0.0 // indirect
 	github.com/mattn/go-runewidth v0.0.9 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
-	github.com/xo/terminfo v0.0.0-20210125001918-ca9a967f8778 // indirect
 	golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44 // indirect
 )

lib/common.go

@@ -17,6 +17,11 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
 
 package lib
 
+import (
+	"github.com/gookit/color"
+	//"github.com/xo/terminfo"
+)
+
 var (
 	// command line flags
 	Debug            bool
@@ -35,11 +40,30 @@ var (
 	InvertMatch      bool
 	Pattern          string
 
-	// FIXME: make configurable somehow, config file or ENV
-	MatchFG string = "black" // see https://github.com/gookit/color
-	MatchBG string = "green"
+	/*
+	 FIXME: make configurable somehow, config file or ENV
+	 see https://github.com/gookit/color will be set by
+	 io.ProcessFiles() according to currently supported
+	 color mode.
+	*/
+	MatchFG string
+	MatchBG string
 	NoColor bool
 
+	// colors to be used per supported color mode
+	Colors = map[color.Level]map[string]string{
+		color.Level16: map[string]string{
+			"bg": "green", "fg": "black",
+		},
+		color.Level256: map[string]string{
+			"bg": "lightGreen", "fg": "black",
+		},
+		color.LevelRgb: map[string]string{
+			// FIXME: maybe use something nicer
+			"bg": "lightGreen", "fg": "black",
+		},
+	}
+
 	// used for validation
 	validOutputmodes = "(orgtbl|markdown|extended|ascii)"
 

lib/helpers.go

@@ -53,7 +53,10 @@ func PrepareColumns() error {
 func numberizeHeaders(data *Tabdata) {
 	// prepare headers: add numbers to headers
 	numberedHeaders := []string{}
+	maxwidth := 0 // start from scratch, so we only look at displayed column widths
+
 	for i, head := range data.headers {
+		headlen := 0
 		if len(Columns) > 0 {
 			// -c specified
 			if !contains(UseColumns, i+1) {
@@ -63,11 +66,21 @@ func numberizeHeaders(data *Tabdata) {
 		}
 		if NoNumbering {
 			numberedHeaders = append(numberedHeaders, head)
+			headlen = len(head)
 		} else {
-			numberedHeaders = append(numberedHeaders, fmt.Sprintf("%s(%d)", head, i+1))
+			numhead := fmt.Sprintf("%s(%d)", head, i+1)
+			headlen = len(numhead)
+			numberedHeaders = append(numberedHeaders, numhead)
+		}
+
+		if headlen > maxwidth {
+			maxwidth = headlen
 		}
 	}
 	data.headers = numberedHeaders
+	if data.maxwidthHeader != maxwidth && maxwidth > 0 {
+		data.maxwidthHeader = maxwidth
+	}
 }
 
 func reduceColumns(data *Tabdata) {

lib/io.go

@@ -29,6 +29,10 @@ func ProcessFiles(args []string) error {
 
 	if !isTerminal(os.Stdout) {
 		color.Disable()
+	} else {
+		level := color.TermColorLevel()
+		MatchFG = Colors[level]["fg"]
+		MatchBG = Colors[level]["bg"]
 	}
 
 	if err != nil {

lib/printer.go

@@ -137,22 +137,14 @@ func printAsciiData(data *Tabdata) {
 */
 func printExtendedData(data *Tabdata) {
 	// needed for data output
-	format := fmt.Sprintf("%%%ds: %%s\n", data.maxwidthHeader) // FIXME: re-calculate if -c has been set
+	format := fmt.Sprintf("%%%ds: %%s\n", data.maxwidthHeader)
 
 	if len(data.entries) > 0 {
-		var idx int
 		for _, entry := range data.entries {
-			idx = 0
 			for i, value := range entry {
-				if len(Columns) > 0 {
-					if !contains(UseColumns, i+1) {
-						continue
-					}
-				}
-
-				color.Printf(format, data.headers[idx], value)
-				idx++
+				color.Printf(format, data.headers[i], value)
 			}
+
 			fmt.Println()
 		}
 	}