private StyleRange createStyleRange(int start, int end, Styler style) {
StyleRange styleRange = new StyleRange();
styleRange.start = start;
styleRange.length = end - start;
style.applyStyles(styleRange);
return styleRange;
}
private boolean isDifferentStyle(Styler style1, Styler style2) {
if (style1 == null) {
return style2 != null;
}
return !style1.equals(style2);
}