Add SetNoWhiteSpace and SetTablePadding options to have more kubectl like output

README.md

@@ -233,7 +233,7 @@ table.Render()
 #### Table with color Output
 ![Table with Color](https://cloud.githubusercontent.com/assets/6460392/21101956/bbc7b356-c0a1-11e6-9f36-dba694746efc.png)
 
-#### Example 6 - Set table caption
+#### Example 7 - Set table caption
 ```go
 data := [][]string{
     []string{"A", "The Good", "500"},
@@ -254,7 +254,7 @@ table.Render() // Send output
 
 Note: Caption text will wrap with total width of rendered table.
 
-##### Output 6
+##### Output 7
 ```
 +------+-----------------------+--------+
 | NAME |         SIGN          | RATING |
@@ -267,6 +267,41 @@ Note: Caption text will wrap with total width of rendered table.
 Movie ratings.
 ```
 
+#### Example 8 - Set NoWhiteSpace and TablePadding option
+```go
+data := [][]string{
+    {"node1.example.com", "Ready", "compute", "1.11"},
+    {"node2.example.com", "Ready", "compute", "1.11"},
+    {"node3.example.com", "Ready", "compute", "1.11"},
+    {"node4.example.com", "NotReady", "compute", "1.11"},
+}
+
+table := tablewriter.NewWriter(os.Stdout)
+table.SetHeader([]string{"Name", "Status", "Role", "Version"})
+table.SetAutoWrapText(false)
+table.SetAutoFormatHeaders(true)
+table.SetHeaderAlignment(ALIGN_LEFT)
+table.SetAlignment(ALIGN_LEFT)
+table.SetCenterSeparator("")
+table.SetColumnSeparator("")
+table.SetRowSeparator("")
+table.SetHeaderLine(false)
+table.SetBorder(false)
+table.SetTablePadding("\t") // pad with tabs
+table.SetNoWhiteSpace(true)
+table.AppendBulk(data) // Add Bulk Data
+table.Render()
+```
+
+##### Output 8
+```
+NAME             	STATUS  	ROLE   	VERSION 
+node1.example.com	Ready   	compute	1.11   	
+node2.example.com	Ready   	compute	1.11   	
+node3.example.com	Ready   	compute	1.11   	
+node4.example.com	NotReady	compute	1.11   	
+```
+
 #### Render table into a string
 
 Instead of rendering the table to `io.Stdout` you can also render it into a string. Go 1.10 introduced the `strings.Builder` type which implements the `io.Writer` interface and can therefore be used for this task. Example:

table.go

@@ -72,6 +72,8 @@ type Table struct {
 	newLine        string
 	rowLine        bool
 	autoMergeCells bool
+	noWhiteSpace   bool
+	tablePadding   string
 	hdrLine        bool
 	borders        Border
 	colSize        int
@@ -225,6 +227,16 @@ func (t *Table) SetAlignment(align int) {
 	t.align = align
 }
 
+// Set No White Space
+func (t *Table) SetNoWhiteSpace(allow bool) {
+	t.noWhiteSpace = allow
+}
+
+// Set Table Padding
+func (t *Table) SetTablePadding(padding string) {
+	t.tablePadding = padding
+}
+
 func (t *Table) SetColumnAlignment(keys []int) {
 	for _, v := range keys {
 		switch v {
@@ -411,27 +423,45 @@ func (t *Table) printHeading() {
 	for x := 0; x < max; x++ {
 		// Check if border is set
 		// Replace with space if not set
-		fmt.Fprint(t.out, ConditionString(t.borders.Left, t.pColumn, SPACE))
+		if !t.noWhiteSpace {
+			fmt.Fprint(t.out, ConditionString(t.borders.Left, t.pColumn, SPACE))
+		}
 
 		for y := 0; y <= end; y++ {
 			v := t.cs[y]
 			h := ""
+
 			if y < len(t.headers) && x < len(t.headers[y]) {
 				h = t.headers[y][x]
 			}
 			if t.autoFmt {
 				h = Title(h)
 			}
 			pad := ConditionString((y == end && !t.borders.Left), SPACE, t.pColumn)
-
+			if t.noWhiteSpace {
+				pad = ConditionString((y == end && !t.borders.Left), SPACE, t.tablePadding)
+			}
 			if is_esc_seq {
-				fmt.Fprintf(t.out, " %s %s",
-					format(padFunc(h, SPACE, v),
-						t.headerParams[y]), pad)
+				if !t.noWhiteSpace {
+					fmt.Fprintf(t.out, " %s %s",
+						format(padFunc(h, SPACE, v),
+							t.headerParams[y]), pad)
+				} else {
+					fmt.Fprintf(t.out, "%s %s",
+						format(padFunc(h, SPACE, v),
+							t.headerParams[y]), pad)
+				}
 			} else {
-				fmt.Fprintf(t.out, " %s %s",
-					padFunc(h, SPACE, v),
-					pad)
+				if !t.noWhiteSpace {
+					fmt.Fprintf(t.out, " %s %s",
+						padFunc(h, SPACE, v),
+						pad)
+				} else {
+					// the spaces between breaks the kube formatting
+					fmt.Fprintf(t.out, "%s%s",
+						padFunc(h, SPACE, v),
+						pad)
+				}
 			}
 		}
 		// Next line
@@ -654,9 +684,11 @@ func (t *Table) printRow(columns [][]string, rowIdx int) {
 		for y := 0; y < total; y++ {
 
 			// Check if border is set
-			fmt.Fprint(t.out, ConditionString((!t.borders.Left && y == 0), SPACE, t.pColumn))
+			if !t.noWhiteSpace {
+				fmt.Fprint(t.out, ConditionString((!t.borders.Left && y == 0), SPACE, t.pColumn))
+				fmt.Fprintf(t.out, SPACE)
+			}
 
-			fmt.Fprintf(t.out, SPACE)
 			str := columns[y][x]
 
 			// Embedding escape sequence with column value
@@ -688,11 +720,17 @@ func (t *Table) printRow(columns [][]string, rowIdx int) {
 
 				}
 			}
-			fmt.Fprintf(t.out, SPACE)
+			if !t.noWhiteSpace {
+				fmt.Fprintf(t.out, SPACE)
+			} else {
+				fmt.Fprintf(t.out, t.tablePadding)
+			}
 		}
 		// Check if border is set
 		// Replace with space if not set
-		fmt.Fprint(t.out, ConditionString(t.borders.Left, t.pColumn, SPACE))
+		if !t.noWhiteSpace {
+			fmt.Fprint(t.out, ConditionString(t.borders.Left, t.pColumn, SPACE))
+		}
 		fmt.Fprint(t.out, t.newLine)
 	}
 
@@ -804,7 +842,7 @@ func (t *Table) printRowMergeCells(writer io.Writer, columns [][]string, rowIdx
 	//The new previous line is the current one
 	previousLine = make([]string, total)
 	for y := 0; y < total; y++ {
-		previousLine[y] = strings.TrimRight(strings.Join(columns[y], " ")," ") //Store the full line for multi-lines cells
+		previousLine[y] = strings.TrimRight(strings.Join(columns[y], " "), " ") //Store the full line for multi-lines cells
 	}
 	//Returns the newly added line and wether or not a border should be displayed above.
 	return previousLine, displayCellBorder

table_test.go

@@ -1145,3 +1145,38 @@ func TestTitle(t *testing.T) {
 		}
 	}
 }
+
+func TestKubeFormat(t *testing.T) {
+	data := [][]string{
+		{"1/1/2014", "jan_hosting", "2233", "$10.98"},
+		{"1/1/2014", "feb_hosting", "2233", "$54.95"},
+		{"1/4/2014", "feb_extra_bandwidth", "2233", "$51.00"},
+		{"1/4/2014", "mar_hosting", "2233", "$30.00"},
+	}
+
+	var buf bytes.Buffer
+	table := NewWriter(&buf)
+	table.SetHeader([]string{"Date", "Description", "CV2", "Amount"})
+	table.SetAutoWrapText(false)
+	table.SetAutoFormatHeaders(true)
+	table.SetHeaderAlignment(ALIGN_LEFT)
+	table.SetAlignment(ALIGN_LEFT)
+	table.SetCenterSeparator("")
+	table.SetColumnSeparator("")
+	table.SetRowSeparator("")
+	table.SetHeaderLine(false)
+	table.SetBorder(false)
+	table.SetTablePadding("\t") // pad with tabs
+	table.SetNoWhiteSpace(true)
+	table.AppendBulk(data) // Add Bulk Data
+	table.Render()
+
+	want := `DATE    	DESCRIPTION        	CV2 	AMOUNT 
+1/1/2014	jan_hosting        	2233	$10.98	
+1/1/2014	feb_hosting        	2233	$54.95	
+1/4/2014	feb_extra_bandwidth	2233	$51.00	
+1/4/2014	mar_hosting        	2233	$30.00	
+`
+
+	checkEqual(t, buf.String(), want, "kube format rendering failed")
+}