This is helper class with regular expression built in to detect if some string have HTML body or not.
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public final class HTMLHelper { public static final String TAG_START = "<\\w+((\\s+\\w+(\\s*=\\s*(?:\".*?\"|'.*?'|[^'\">\\s]+))?)+\\s*|\\s*)>"; public static final String TAG_END = "</\\w+>"; public static final String TAG_SELF_CLOSING = "<\\w+((\\s+\\w+(\\s*=\\s*(?:\".*?\"|'.*?'|[^'\">\\s]+))?)+\\s*|\\s*)/>"; public static final String HTML_ENTITY = "&[a-zA-Z][a-zA-Z0-9]+;"; public static final Pattern htmlPattern = Pattern .compile("(" + TAG_START + ".*" + TAG_END + ")|(" + TAG_SELF_CLOSING + ")|(" + HTML_ENTITY + ")", Pattern.DOTALL); private HTMLHelper() { } public static boolean isHtml(String htmlString) { boolean isHTML = false; if (htmlString != null) { isHTML = htmlPattern.matcher(htmlString).find(); } return isHTML; } } |