Add line fixers: FixTabIndentationToSpaces, FixTabIndentationToSpaces, FixTabIndentationToSpaces.

editorconfig/line_fixers.go

@@ -0,0 +1,55 @@
+package editorconfig
+
+import (
+	"strconv"
+	"strings"
+)
+
+type LineFixer func(ruleValue string, line string) string
+
+func FixTabIndentationToSpaces(ruleValueNumberOfSpaces string, line string) string {
+	numberOfSpaces, _ := strconv.Atoi(ruleValueNumberOfSpaces)
+
+	line = indentedWithTabsRegexp.ReplaceAllStringFunc(line, func(tabs string) string {
+		return strings.Repeat(" ", len(tabs)*numberOfSpaces)
+	})
+
+	return line
+}
+
+func FixMixedIndentationToSpaces(ruleValueNumberOfSpaces string, line string) string {
+	numberOfSpaces, _ := strconv.Atoi(ruleValueNumberOfSpaces)
+
+	for indentedWithMixedTabsAndSpacesRegexp.MatchString(line) {
+		line = indentedWithMixedTabsAndSpacesRegexp.ReplaceAllStringFunc(line, func(tabsAndSpaces string) string {
+			tabs := strings.Replace(tabsAndSpaces, " ", "", -1)
+			spaces := strings.Replace(tabsAndSpaces, "\t", "", -1)
+
+			return strings.Repeat(" ", (len(tabs)*numberOfSpaces)+len(spaces))
+		})
+	}
+
+	return line
+}
+
+func FixUndividableIndentationToNearestSpacesAmount(ruleValueNumberOfSpaces string, line string) string {
+	numberOfSpaces, _ := strconv.Atoi(ruleValueNumberOfSpaces)
+	if numberOfSpaces < 1 {
+		ExitBecauseOfInternalError("Number of spaces must be integer greater than 0, is: " + ruleValueNumberOfSpaces)
+	}
+
+	if GetNumberOfLeftSpaces(line) == 0 {
+		return line
+	}
+
+	for true {
+		leftSpaces := GetNumberOfLeftSpaces(line)
+		if leftSpaces%numberOfSpaces != 0 {
+			line = " " + line
+		} else {
+			break
+		}
+	}
+
+	return line
+}