Code

wrapLines.go

@@ -0,0 +1,40 @@
+package main
+
+import (
+	"strings"
+)
+
+// wrapLines returns a slice with every element representing a new line
+func WrapLines(input string, maxLineLength int, breakupDelimiter string) []string {
+	breakupDelimiterLength := len([]rune(breakupDelimiter))
+	output := []string{}
+
+	previousExistingLineIndex := -1
+	for existingLineIndex, existingLine := range strings.Split(input, "\n") {
+		words := strings.Split(existingLine, breakupDelimiter)
+		length := 0
+		for _, word := range words {
+			wordLength := len([]rune(word))
+			length += breakupDelimiterLength + wordLength
+			if length > maxLineLength || len(output) == 0 || previousExistingLineIndex != existingLineIndex {
+				output = append(output, word)
+				length = wordLength
+			} else {
+				output[len(output) - 1] += breakupDelimiter + word
+			}
+			previousExistingLineIndex = existingLineIndex
+		}
+	}
+
+	return output
+}
+
+func JoinGophermapLines(typeCharacter string, lines []string, lineEnding string) string {
+	out := ""
+	for index, line := range lines {
+		out += typeCharacter + line + lineEnding
+		if index < len(lines) - 1 { out += "\n" }
+	}
+	return out
+}
+