Added function to replace an element in a slice given its value

misc.go

@@ -14,6 +14,7 @@ var ANY_CHAR rune = 0xF0003    // Represents any character - used for states whe
 var LPAREN_CHAR rune = 0xF0004 // Parentheses in regex are concatenated with this - it acts as a pseudio-parentheses
 var RPAREN_CHAR rune = 0xF0005
 var NONCAPLPAREN_CHAR rune = 0xF0006 // Represents a non-capturing group's LPAREN
+var ESC_BACKSLASH rune = 0xF0007     // Represents an escaped backslash
 
 // Returns true if str[idx] and str[idx-1] are separated by a word boundary.
 func isWordBoundary(str []rune, idx int) bool {
@@ -139,3 +140,13 @@ func isHex(c rune) bool {
 func isOctal(c rune) bool {
 	return slices.Contains([]rune("01234567"), c)
 }
+
+// Replace an element in a slice with another, given both values
+func replaceByValue[T comparable](slc []T, toReplace T, replaceWith T) []T {
+	for i, val := range slc {
+		if val == toReplace {
+			slc[i] = replaceWith
+		}
+	}
+	return slc
+}