add clifmt from 'git.xdrm.io/go/aicra'

internal/clifmt/colors.go

@@ -0,0 +1,16 @@
+package clifmt
+
+import (
+	"fmt"
+)
+
+// Color returns a bash-formatted string representing
+// the string @text with the color code @color and in bold
+// if @bold (1 optional argument) is set to true
+func Color(color byte, text string, bold ...bool) string {
+	b := "0"
+	if len(bold) > 0 && bold[0] {
+		b = "1"
+	}
+	return fmt.Sprintf("\033[%s;%dm%s\033[0m", b, color, text)
+}

internal/clifmt/symbols.go

@@ -0,0 +1,57 @@
+package clifmt
+
+import (
+	"fmt"
+	"strings"
+)
+
+var titleIndex = 0
+var alignOffset = 30
+
+// Warn returns a red warning ASCII sign. If a string is given
+// as argument, it will print it after the warning sign
+func Warn(s ...string) string {
+	if len(s) == 0 {
+		return Color(31, "/!\\")
+	}
+
+	return fmt.Sprintf("%s  %s", Warn(), s[0])
+}
+
+// Info returns a blue info ASCII sign. If a string is given
+// as argument, it will print it after the info sign
+func Info(s ...string) string {
+	if len(s) == 0 {
+		return Color(34, "(!)")
+	}
+
+	return fmt.Sprintf("%s  %s", Info(), s[0])
+}
+
+// Title prints a formatted title (auto-indexed from local counted)
+func Title(s string) {
+	titleIndex++
+	fmt.Printf("\n%s |%d| %s %s\n", Color(33, ">>", false), titleIndex, s, Color(33, "<<", false))
+
+}
+
+// Align prints strings with space padding to align line ends (fixed width)
+func Align(s string) {
+
+	// 1. print string
+	fmt.Printf("%s", s)
+
+	// 2. get actual size
+	size := len(s)
+
+	// 3. remove \033[XYm format characters
+	size -= (len(strings.Split(s, "\033")) - 0) * 6
+
+	// 3. add 1 char for each \033[0m
+	size += len(strings.Split(s, "\033[0m")) - 1
+
+	// 4. print trailing spaces
+	for i := size; i < alignOffset; i++ {
+		fmt.Printf(" ")
+	}
+}