Updated more referencs to constants

regex/compile.go

@@ -171,7 +171,7 @@ func shuntingYard(re string, flags ...ReFlag) ([]postfixNode, error) {
 			}
 			re_runes = append(re_runes, []rune(regex)...)
 		} else if c == '(' && i < len(re_runes_orig)-2 && re_runes_orig[i+1] == '?' && re_runes_orig[i+2] == ':' {
-			re_runes = append(re_runes, NONCAPLPAREN_CHAR)
+			re_runes = append(re_runes, nonCapLparenRune)
 			i += 2
 		} else if c == '\\' && i < len(re_runes_orig)-1 && re_runes_orig[i+1] == '\\' { // Escaped backslash
 			re_runes = append(re_runes, escBackslashRune)
@@ -254,7 +254,7 @@ func shuntingYard(re string, flags ...ReFlag) ([]postfixNode, error) {
 			re_postfix = append(re_postfix, re_runes[i]) // Append closing brace
 		}
 		if i < len(re_runes)-3 && string(re_runes[i+1:i+4]) == "(?:" { // Non-capturing lparen
-			re_postfix = append(re_postfix, NONCAPLPAREN_CHAR)
+			re_postfix = append(re_postfix, nonCapLparenRune)
 			i += 3
 		}
 		if i < len(re_runes) && re_runes[i] == '\\' { // Something is being escaped (I don't add the backslash to re_postfix, because it was already added earlier)
@@ -303,7 +303,7 @@ func shuntingYard(re string, flags ...ReFlag) ([]postfixNode, error) {
 				if i >= len(re_runes) {
 					return nil, fmt.Errorf("unclosed lookaround")
 				}
-				if re_runes[i] == '(' || re_runes[i] == NONCAPLPAREN_CHAR {
+				if re_runes[i] == '(' || re_runes[i] == nonCapLparenRune {
 					numOpenParens++
 				}
 				if re_runes[i] == ')' {
@@ -317,7 +317,7 @@ func shuntingYard(re string, flags ...ReFlag) ([]postfixNode, error) {
 			}
 			continue
 		}
-		if i < len(re_runes) && (re_runes[i] != '(' && re_runes[i] != NONCAPLPAREN_CHAR && re_runes[i] != '|' && re_runes[i] != '\\') || (i > 0 && re_runes[i-1] == '\\') { // Every character should be concatenated if it is escaped
+		if i < len(re_runes) && (re_runes[i] != '(' && re_runes[i] != nonCapLparenRune && re_runes[i] != '|' && re_runes[i] != '\\') || (i > 0 && re_runes[i-1] == '\\') { // Every character should be concatenated if it is escaped
 			if i < len(re_runes)-1 {
 				if re_runes[i+1] != '|' && re_runes[i+1] != '*' && re_runes[i+1] != '+' && re_runes[i+1] != '?' && re_runes[i+1] != ')' && re_runes[i+1] != '{' {
 					re_postfix = append(re_postfix, concatRune)
@@ -433,7 +433,7 @@ func shuntingYard(re string, flags ...ReFlag) ([]postfixNode, error) {
 				if i >= len(re_postfix) {
 					return nil, fmt.Errorf("unclosed lookaround")
 				}
-				if re_postfix[i] == '(' || re_postfix[i] == NONCAPLPAREN_CHAR {
+				if re_postfix[i] == '(' || re_postfix[i] == nonCapLparenRune {
 					numOpenParens++
 				}
 				if re_postfix[i] == ')' {
@@ -757,7 +757,7 @@ func shuntingYard(re string, flags ...ReFlag) ([]postfixNode, error) {
 			outQueue[idx].startReps = startRangeNum
 			outQueue[idx].endReps = endRangeNum
 		}
-		if c == '(' || c == NONCAPLPAREN_CHAR {
+		if c == '(' || c == nonCapLparenRune {
 			opStack = append(opStack, c)
 			if c == '(' { // We only push _capturing_ group parentheses to outQueue
 				outQueue = append(outQueue, newPostfixNode(c))
@@ -768,7 +768,7 @@ func shuntingYard(re string, flags ...ReFlag) ([]postfixNode, error) {
 			// Keep popping from opStack until we encounter an opening parantheses or a NONCAPLPAREN_CHAR. Throw error if we reach the end of the stack.
 			var val rune
 			var err error
-			for val, err = peek(opStack); val != '(' && val != NONCAPLPAREN_CHAR; val, err = peek(opStack) {
+			for val, err = peek(opStack); val != '(' && val != nonCapLparenRune; val, err = peek(opStack) {
 				if err != nil {
 					return nil, fmt.Errorf("imbalanced parantheses")
 				}

regex/range2regex.go

@@ -99,13 +99,13 @@ func range2regex(start int, end int) (string, error) {
 	// Last range - tmp to rangeEnd
 	ranges = append(ranges, numRange{tmp, rangeEnd})
 
-	regex := string(NONCAPLPAREN_CHAR)
+	regex := string(nonCapLparenRune)
 	// Generate the regex
 	for i, rg := range ranges {
 		if i > 0 {
 			regex += "|"
 		}
-		regex += string(NONCAPLPAREN_CHAR)
+		regex += string(nonCapLparenRune)
 		startSlc := intToSlc(rg.start)
 		endSlc := intToSlc(rg.end)
 		if len(startSlc) != len(endSlc) {
@@ -115,7 +115,7 @@ func range2regex(start int, end int) (string, error) {
 			if startSlc[i] == endSlc[i] {
 				regex += string(rune(startSlc[i] + 48)) // '0' is ascii value 48, 1 is 49 etc. To convert the digit to its character form, we can just add 48.
 			} else {
-				regex += fmt.Sprintf("%c%c-%c%c", LBRACKET, rune(startSlc[i]+48), rune(endSlc[i]+48), RBRACKET)
+				regex += fmt.Sprintf("%c%c-%c%c", lbracketRune, rune(startSlc[i]+48), rune(endSlc[i]+48), rbracketRune)
 			}
 		}
 		regex += ")"