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package cgeo.geocaching.connector.gc;
import java.util.regex.Pattern;
/**
* These patterns have been optimized for speed. Improve them only if you can prove
* that *YOUR* pattern is faster. Use RegExRealPerformanceTest to show.
*
* For further information about patterns have a look at
* http://download.oracle.com/javase/1.4.2/docs/api/java/util/regex/Pattern.html
*/
public final class GCConstants {
/** Live Map */
public final static String URL_LIVE_MAP = "http://www.geocaching.com/map/default.aspx";
/** Live Map pop-up */
public final static String URL_LIVE_MAP_DETAILS = "http://www.geocaching.com/map/map.details";
/** Caches in a tile */
public final static String URL_MAP_INFO = "http://www.geocaching.com/map/map.info";
/** Tile itself */
public final static String URL_MAP_TILE = "http://www.geocaching.com/map/map.png";
/**
* Patterns for parsing the result of a (detailed) search
*/
public final static Pattern PATTERN_HINT = Pattern.compile("<div id=\"div_hint\"[^>]*>(.*?)</div>");
public final static Pattern PATTERN_DESC = Pattern.compile("<span id=\"ctl00_ContentBody_LongDescription\">(.*?)</span>\\s*</div>\\s*<p>\\s*</p>\\s*<p id=\"ctl00_ContentBody_hints\">");
public final static Pattern PATTERN_SHORTDESC = Pattern.compile("<span id=\"ctl00_ContentBody_ShortDescription\">(.*?)</span>\\s*</div>");
public final static Pattern PATTERN_GEOCODE = Pattern.compile("class=\"CoordInfoCode\">(GC[0-9A-Z]+)</span>");
public final static Pattern PATTERN_CACHEID = Pattern.compile("/seek/log\\.aspx\\?ID=(\\d+)");
public final static Pattern PATTERN_GUID = Pattern.compile(Pattern.quote("&wid=") + "([0-9a-z\\-]+)" + Pattern.quote("&"));
public final static Pattern PATTERN_SIZE = Pattern.compile("<div id=\"ctl00_ContentBody_size\" class=\"CacheSize[^\"]*\">[^<]*<p[^>]*>[^S]*Size[^:]*:[^<]*<span[^>]*>[^<]*<img src=\"[^\"]*/icons/container/[a-z_]+\\.gif\" alt=\"\\w+: ([^\"]+)\"[^>]*>[^<]*<small>[^<]*</small>[^<]*</span>[^<]*</p>");
public final static Pattern PATTERN_LATLON = Pattern.compile("<span id=\"uxLatLon\" style=\"font-weight:bold;\"[^>]*>(.*?)</span>");
public final static Pattern PATTERN_LATLON_ORIG = Pattern.compile("\\{\"isUserDefined\":true[^}]+?\"oldLatLngDisplay\":\"([^\"]+)\"\\}");
public final static Pattern PATTERN_LOCATION = Pattern.compile(Pattern.quote("<span id=\"ctl00_ContentBody_Location\">In ") + "(?:<a href=[^>]*>)?(.*?)<");
public final static Pattern PATTERN_PERSONALNOTE = Pattern.compile("<p id=\"cache_note\"[^>]*>(.*?)</p>");
public final static Pattern PATTERN_NAME = Pattern.compile("<span id=\"ctl00_ContentBody_CacheName\">(.*?)</span>");
public final static Pattern PATTERN_DIFFICULTY = Pattern.compile("<span id=\"ctl00_ContentBody_uxLegendScale\"[^>]*>[^<]*<img src=\"[^\"]*/images/stars/stars([0-9_]+)\\.gif\"");
public final static Pattern PATTERN_TERRAIN = Pattern.compile("<span id=\"ctl00_ContentBody_Localize[\\d]+\"[^>]*>[^<]*<img src=\"[^\"]*/images/stars/stars([0-9_]+)\\.gif\"");
public final static Pattern PATTERN_OWNER_USERID = Pattern.compile("<a id=\"ctl00_ContentBody_uxFindLinksHiddenByThisUser\" href=\"[^\"]*/seek/nearest\\.aspx\\?u=(.*?)\"");
public final static Pattern PATTERN_FOUND = Pattern.compile("<a id=\"ctl00_ContentBody_hlFoundItLog\"[^<]*<img src=\".*/images/stockholm/16x16/check\\.gif\"[^>]*>[^<]*</a>[^<]*</p>");
public final static Pattern PATTERN_FOUND_ALTERNATIVE = Pattern.compile("<div class=\"StatusInformationWidget FavoriteWidget\"");
public final static Pattern PATTERN_FOUND_DATE = Pattern.compile("You logged this as Found on ([^.]+?)\\.[^<]*</a>[^<]*</p>");
public final static Pattern PATTERN_OWNER_DISPLAYNAME = Pattern.compile("<div id=\"ctl00_ContentBody_mcd1\">[^<]+<a href=\"[^\"]+\">([^<]+)</a></div>");
public final static Pattern PATTERN_TYPE = Pattern.compile("<img src=\"[^\"]*/WptTypes/\\d+\\.gif\" alt=\"([^\"]+?)\"[^>]*>");
public final static Pattern PATTERN_HIDDEN = Pattern.compile("<div id=\"ctl00_ContentBody_mcd2\">\\W*Hidden[\\s:]*([^<]+?)</div>");
public final static Pattern PATTERN_HIDDENEVENT = Pattern.compile("Event\\s*Date\\s*:\\s*([^<]+)<div id=\"calLinks\">", Pattern.DOTALL);
public final static Pattern PATTERN_FAVORITE = Pattern.compile("<div id=\"pnlFavoriteCache\">"); // without 'class="hideMe"' inside the tag !
public final static Pattern PATTERN_FAVORITECOUNT = Pattern.compile("<a id=\"uxFavContainerLink\"[^>]+>[^<]*<div[^<]*<span class=\"favorite-value\">\\D*([0-9]+?)</span>");
public final static Pattern PATTERN_COUNTLOGS = Pattern.compile("<span id=\"ctl00_ContentBody_lblFindCounts\"><p(.+?)</p></span>");
public final static Pattern PATTERN_LOGBOOK = Pattern.compile("initalLogs = (\\{.+\\});");
/** Two groups ! */
public final static Pattern PATTERN_COUNTLOG = Pattern.compile("<img src=\"/images/icons/([a-z_]+)\\.gif\"[^>]+> (\\d*[,.]?\\d+)");
public static final Pattern PATTERN_PREMIUMMEMBERS = Pattern.compile("<p class=\"Warning NoBottomSpacing\">This is a Premium Member Only cache.</p>");
public final static Pattern PATTERN_ATTRIBUTES = Pattern.compile("<h3 class=\"WidgetHeader\">[^<]*<img[^>]+>\\W*Attributes[^<]*</h3>[^<]*<div class=\"WidgetBody\">((?:[^<]*<img src=\"[^\"]+\" alt=\"[^\"]+\"[^>]*>)+?)[^<]*<p");
/** Two groups ! */
public final static Pattern PATTERN_ATTRIBUTESINSIDE = Pattern.compile("[^<]*<img src=\"([^\"]+)\" alt=\"([^\"]+?)\"");
public final static Pattern PATTERN_SPOILER_IMAGE = Pattern.compile("<a href=\"(http://img\\.geocaching\\.com/cache/[^.]+\\.jpe?g)\"[^>]+><img[^>]+><span>([^<]+)</span></a>(?:<br />([^<]+)<br /><br />)?");
public final static Pattern PATTERN_INVENTORY = Pattern.compile("<span id=\"ctl00_ContentBody_uxTravelBugList_uxInventoryLabel\">\\W*Inventory[^<]*</span>[^<]*</h3>[^<]*<div class=\"WidgetBody\">([^<]*<ul>(([^<]*<li>[^<]*<a href=\"[^\"]+\"[^>]*>[^<]*<img src=\"[^\"]+\"[^>]*>[^<]*<span>[^<]+<\\/span>[^<]*<\\/a>[^<]*<\\/li>)+)[^<]*<\\/ul>)?");
public final static Pattern PATTERN_INVENTORYINSIDE = Pattern.compile("[^<]*<li>[^<]*<a href=\"[a-z0-9\\-\\_\\.\\?\\/\\:\\@]*\\/track\\/details\\.aspx\\?guid=([0-9a-z\\-]+)[^\"]*\"[^>]*>[^<]*<img src=\"[^\"]+\"[^>]*>[^<]*<span>([^<]+)<\\/span>[^<]*<\\/a>[^<]*<\\/li>");
public final static Pattern PATTERN_WATCHLIST = Pattern.compile("icon_stop_watchlist.gif");
// Info box top-right
public static final Pattern PATTERN_LOGIN_NAME = Pattern.compile("\"SignedInProfileLink\">([^<]+)</a>");
public static final Pattern PATTERN_MEMBER_STATUS = Pattern.compile("<span id=\"ctl00_litPMLevel\">([^<]+)</span>");
public static final String MEMBER_STATUS_RENEW = "<a id=\"ctl00_hlRenew";
public static final String MEMBER_STATUS_PM = "Premium Member";
/** Use replaceAll("[,.]","") on the resulting string before converting to an int */
public static final Pattern PATTERN_CACHES_FOUND = Pattern.compile("title=\"Caches Found\"[\\s\\w=\"/.]*/>\\s*([\\d,.]+)");
public static final Pattern PATTERN_AVATAR_IMAGE_PROFILE_PAGE = Pattern.compile("<img src=\"(http://img.geocaching.com/user/avatar/[0-9a-f-]+\\.jpg)\"[^>]*\\salt=\"Avatar\"");
public static final Pattern PATTERN_LOGIN_NAME_LOGIN_PAGE = Pattern.compile("<h4>Success:</h4> <p>You are logged in as[^<]*<strong><span id=\"ctl00_ContentBody_lbUsername\"[^>]*>([^<]+)[^<]*</span>");
public static final Pattern PATTERN_CUSTOMDATE = Pattern.compile("<option selected=\"selected\" value=\"([ /Mdy-]+)\">");
/**
* Patterns for parsing trackables
*/
public final static Pattern PATTERN_TRACKABLE_GUID = Pattern.compile("<a id=\"ctl00_ContentBody_lnkPrint\" title=\"[^\"]*\" href=\".*sheet\\.aspx\\?guid=([a-z0-9\\-]+)\"[^>]*>[^<]*</a>");
public final static Pattern PATTERN_TRACKABLE_GEOCODE = Pattern.compile("<strong>(TB[0-9A-Z]+)[^<]*</strong> to reference this item.");
/**
* some parts of the webpage don't correctly encode the name, therefore this pattern must be checked with a
* trackable name that needs HTML encoding
*/
public final static Pattern PATTERN_TRACKABLE_NAME = Pattern.compile("name=\"og:title\" content=\"([^\"]+)\"");
/** Two groups ! */
public final static Pattern PATTERN_TRACKABLE_OWNER = Pattern.compile("<dt>\\W*Owner:[^<]*</dt>[^<]*<dd>[^<]*<a id=\"ctl00_ContentBody_BugDetails_BugOwner\" title=\"[^\"]*\" href=\"[^\"]*/profile/\\?guid=([a-z0-9\\-]+)\">([^<]+)<\\/a>[^<]*</dd>");
public final static Pattern PATTERN_TRACKABLE_RELEASES = Pattern.compile("<dt>\\W*Released:[^<]*</dt>[^<]*<dd>[^<]*<span id=\"ctl00_ContentBody_BugDetails_BugReleaseDate\">([^<]+)<\\/span>[^<]*</dd>");
public final static Pattern PATTERN_TRACKABLE_ORIGIN = Pattern.compile("<dt>\\W*Origin:[^<]*</dt>[^<]*<dd>[^<]*<span id=\"ctl00_ContentBody_BugDetails_BugOrigin\">([^<]+)<\\/span>[^<]*</dd>");
/** Two groups ! */
public final static Pattern PATTERN_TRACKABLE_SPOTTEDCACHE = Pattern.compile("<dt>\\W*Recently Spotted:[^<]*</dt>[^<]*<dd>[^<]*<a id=\"ctl00_ContentBody_BugDetails_BugLocation\" title=\"[^\"]*\" href=\"[^\"]*/seek/cache_details.aspx\\?guid=([a-z0-9\\-]+)\">In ([^<]+)</a>[^<]*</dd>");
/** Two groups ! */
public final static Pattern PATTERN_TRACKABLE_SPOTTEDUSER = Pattern.compile("<dt>\\W*Recently Spotted:[^<]*</dt>[^<]*<dd>[^<]*<a id=\"ctl00_ContentBody_BugDetails_BugLocation\" href=\"[^\"]*/profile/\\?guid=([a-z0-9\\-]+)\">In the hands of ([^<]+).</a>[^<]*</dd>");
public final static Pattern PATTERN_TRACKABLE_SPOTTEDUNKNOWN = Pattern.compile("<dt>\\W*Recently Spotted:[^<]*</dt>[^<]*<dd>[^<]*<a id=\"ctl00_ContentBody_BugDetails_BugLocation\">Unknown Location[^<]*</a>[^<]*</dd>");
public final static Pattern PATTERN_TRACKABLE_SPOTTEDOWNER = Pattern.compile("<dt>\\W*Recently Spotted:[^<]*</dt>[^<]*<dd>[^<]*<a id=\"ctl00_ContentBody_BugDetails_BugLocation\">In the hands of the owner[^<]*</a>[^<]*</dd>");
public final static Pattern PATTERN_TRACKABLE_GOAL = Pattern.compile("<div id=\"TrackableGoal\">[^<]*<p>(.*?)</p>[^<]*</div>", Pattern.DOTALL);
/** Four groups */
public final static Pattern PATTERN_TRACKABLE_DETAILSIMAGE = Pattern.compile("<h3>\\W*About This Item[^<]*</h3>[^<]*<div id=\"TrackableDetails\">([^<]*<p>([^<]*<img id=\"ctl00_ContentBody_BugDetails_BugImage\" class=\"[^\"]+\" src=\"([^\"]+)\"[^>]*>)?[^<]*</p>)?[^<]*<p[^>]*>(.*)</p>[^<]*</div> <div id=\"ctl00_ContentBody_BugDetails_uxAbuseReport\">");
public final static Pattern PATTERN_TRACKABLE_ICON = Pattern.compile("<img id=\"ctl00_ContentBody_BugTypeImage\" class=\"TravelBugHeaderIcon\" src=\"([^\"]+)\"[^>]*>");
public final static Pattern PATTERN_TRACKABLE_TYPE = Pattern.compile("<img id=\"ctl00_ContentBody_BugTypeImage\" class=\"TravelBugHeaderIcon\" src=\"[^\"]+\" alt=\"([^\"]+)\"[^>]*>");
public final static Pattern PATTERN_TRACKABLE_DISTANCE = Pattern.compile("<h4[^>]*\\W*Tracking History \\(([0-9.,]+(km|mi))[^\\)]*\\)");
public final static Pattern PATTERN_TRACKABLE_LOG = Pattern.compile("<tr class=\"Data.+?src=\"/images/icons/([^.]+)\\.gif[^>]+> ([^<]+)</td>.+?guid.+?>([^<]+)</a>.+?(?:guid=([^\"]+)\">(<span[^>]+>)?([^<]+)</.+?)?<td colspan=\"4\">(.+?)(?:<ul.+?ul>)?\\s*</td>\\s*</tr>");
public final static Pattern PATTERN_TRACKABLE_LOG_IMAGES = Pattern.compile(".+?<li><a href=\"([^\"]+)\".+?LogImgTitle.+?>([^<]+)</");
/**
* Patterns for parsing the result of a search (next)
*/
public final static Pattern PATTERN_SEARCH_TYPE = Pattern.compile("<td class=\"Merge\">[^<]*<a href=\"[^\"]*/seek/cache_details\\.aspx\\?guid=[^\"]+\"[^>]+>[^<]*<img src=\"[^\"]*/images/wpttypes/[^.]+\\.gif\" alt=\"([^\"]+)\" title=\"[^\"]+\"[^>]*>[^<]*</a>");
public final static Pattern PATTERN_SEARCH_GUIDANDDISABLED = Pattern.compile("<img src=\"[^\"]*/images/wpttypes/[^>]*>[^<]*</a></td><td class=\"Merge\">[^<]*<a href=\"[^\"]*/seek/cache_details\\.aspx\\?guid=([a-z0-9\\-]+)\" class=\"lnk([^\"]*)\">([^<]*<span>)?([^<]*)(</span>[^<]*)?</a>[^<]+<br />([^<]*)<span[^>]+>([^<]*)</span>([^<]*<img[^>]+>)?[^<]*<br />[^<]*</td>");
/** Two groups **/
public final static Pattern PATTERN_SEARCH_TRACKABLES = Pattern.compile("<a id=\"ctl00_ContentBody_dlResults_ctl[0-9]+_uxTravelBugList\" class=\"tblist\" data-tbcount=\"([0-9]+)\" data-id=\"[^\"]*\"[^>]*>(.*)</a>");
/** Second group used */
public final static Pattern PATTERN_SEARCH_TRACKABLESINSIDE = Pattern.compile("(<img src=\"[^\"]+\" alt=\"([^\"]+)\" title=\"[^\"]*\" />[^<]*)");
public final static Pattern PATTERN_SEARCH_DIRECTION = Pattern.compile("<img id=\"ctl00_ContentBody_dlResults_ctl[0-9]+_uxDistanceAndHeading\" title=\"[^\"]*\" src=\"[^\"]*/seek/CacheDir\\.ashx\\?k=([^\"]+)\"[^>]*>");
public final static Pattern PATTERN_SEARCH_GEOCODE = Pattern.compile("\\|\\W*(GC[0-9A-Z]+)[^\\|]*\\|");
public final static Pattern PATTERN_SEARCH_ID = Pattern.compile("name=\"CID\"[^v]*value=\"([0-9]+)\"");
public final static Pattern PATTERN_SEARCH_FAVORITE = Pattern.compile("<span id=\"ctl00_ContentBody_dlResults_ctl[0-9]+_uxFavoritesValue\" title=\"[^\"]*\" class=\"favorite-rank\">([0-9]+)</span>");
public final static Pattern PATTERN_SEARCH_TOTALCOUNT = Pattern.compile("<td class=\"PageBuilderWidget\"><span>Total Records[^<]*<b>(\\d+)<\\/b>");
public final static Pattern PATTERN_SEARCH_RECAPTCHA = Pattern.compile("<script[^>]*src=\"[^\"]*/recaptcha/api/challenge\\?k=([^\"]+)\"[^>]*>");
public final static Pattern PATTERN_SEARCH_RECAPTCHACHALLENGE = Pattern.compile("challenge : '([^']+)'");
/**
* Patterns for waypoints
*/
public final static Pattern PATTERN_WPTYPE = Pattern.compile("\\/wpttypes\\/sm\\/(.+)\\.jpg");
public final static Pattern PATTERN_WPPREFIXORLOOKUPORLATLON = Pattern.compile(">([^<]*<[^>]+>)?([^<]+)(<[^>]+>[^<]*)?<\\/td>");
public final static Pattern PATTERN_WPNAME = Pattern.compile(">[^<]*<a[^>]+>([^<]*)<\\/a>");
public final static Pattern PATTERN_WPNOTE = Pattern.compile("colspan=\"6\">(.*)<\\/td>");
/**
* Patterns for different purposes
*/
/** replace linebreak and paragraph tags */
public final static Pattern PATTERN_LINEBREAK = Pattern.compile("<(br|p)[^>]*>");
public final static Pattern PATTERN_TYPEBOX = Pattern.compile("<select name=\"ctl00\\$ContentBody\\$LogBookPanel1\\$ddLogType\" id=\"ctl00_ContentBody_LogBookPanel1_ddLogType\"[^>]*>"
+ "(([^<]*<option[^>]*>[^<]+</option>)+)[^<]*</select>", Pattern.CASE_INSENSITIVE);
public final static Pattern PATTERN_TYPE2 = Pattern.compile("<option( selected=\"selected\")? value=\"(\\d+)\">[^<]+</option>", Pattern.CASE_INSENSITIVE);
// FIXME: pattern is over specified
public final static Pattern PATTERN_TRACKABLE = Pattern.compile("<tr id=\"ctl00_ContentBody_LogBookPanel1_uxTrackables_repTravelBugs_ctl[0-9]+_row\"[^>]*>"
+ "[^<]*<td>[^<]*<a href=\"[^\"]+\">([A-Z0-9]+)</a>[^<]*</td>[^<]*<td>([^<]+)</td>[^<]*<td>"
+ "[^<]*<select name=\"ctl00\\$ContentBody\\$LogBookPanel1\\$uxTrackables\\$repTravelBugs\\$ctl([0-9]+)\\$ddlAction\"[^>]*>"
+ "([^<]*<option value=\"([0-9]+)(_[a-z]+)?\">[^<]+</option>)+"
+ "[^<]*</select>[^<]*</td>[^<]*</tr>", Pattern.CASE_INSENSITIVE);
public final static Pattern PATTERN_MAINTENANCE = Pattern.compile("<span id=\"ctl00_ContentBody_LogBookPanel1_lbConfirm\"[^>]*>([^<]*<font[^>]*>)?([^<]+)(</font>[^<]*)?</span>", Pattern.CASE_INSENSITIVE);
public final static Pattern PATTERN_OK1 = Pattern.compile("<h2[^>]*>[^<]*<span id=\"ctl00_ContentBody_lbHeading\"[^>]*>[^<]*</span>[^<]*</h2>", Pattern.CASE_INSENSITIVE | Pattern.MULTILINE);
public final static Pattern PATTERN_OK2 = Pattern.compile("<div id=[\"|']ctl00_ContentBody_LogBookPanel1_ViewLogPanel[\"|']>", Pattern.CASE_INSENSITIVE);
public final static Pattern PATTERN_VIEWSTATEFIELDCOUNT = Pattern.compile("id=\"__VIEWSTATEFIELDCOUNT\"[^(value)]+value=\"(\\d+)\"[^>]+>", Pattern.CASE_INSENSITIVE | Pattern.MULTILINE);
public final static Pattern PATTERN_VIEWSTATES = Pattern.compile("id=\"__VIEWSTATE(\\d*)\"[^(value)]+value=\"([^\"]+)\"[^>]+>", Pattern.CASE_INSENSITIVE | Pattern.MULTILINE);
public final static Pattern PATTERN_USERTOKEN = Pattern.compile("userToken\\s*=\\s*'([^']+)'");
/**
* Patterns for GC and TB codes
*/
public final static Pattern PATTERN_GC_CODE = Pattern.compile("GC[0-9A-Z]+", Pattern.CASE_INSENSITIVE);
public final static Pattern PATTERN_TB_CODE = Pattern.compile("TB[0-9A-Z]+", Pattern.CASE_INSENSITIVE);
/** Live Map since 14.02.2012 */
public final static Pattern PATTERN_USERSESSION = Pattern.compile("UserSession\\('([^']+)'");
public final static Pattern PATTERN_SESSIONTOKEN = Pattern.compile("sessionToken:'([^']+)'");
public final static String STRING_PREMIUMONLY_2 = "Sorry, the owner of this listing has made it viewable to Premium Members only.";
public final static String STRING_PREMIUMONLY_1 = "has chosen to make this cache listing visible to Premium Members only.";
public final static String STRING_UNPUBLISHED_OWNER = "Cache is Unpublished";
public final static String STRING_UNPUBLISHED_OTHER = "you cannot view this cache listing until it has been published";
public final static String STRING_UNKNOWN_ERROR = "An Error Has Occurred";
public final static String STRING_DISABLED = "<li>This cache is temporarily unavailable.";
public final static String STRING_ARCHIVED = "<li>This cache has been archived,";
public final static String STRING_CACHEDETAILS = "id=\"cacheDetails\"";
/** Number of logs to retrieve from GC.com */
public final static int NUMBER_OF_LOGS = 35;
private final static String SEQUENCE_GCID = "0123456789ABCDEFGHJKMNPQRTVWXYZ";
private final static long GC_BASE31 = 31;
private final static long GC_BASE16 = 16;
/**
* Convert GCCode (geocode) to (old) GCIds
*
* Based on http://www.geoclub.de/viewtopic.php?f=111&t=54859&start=40
* see http://support.groundspeak.com/index.php?pg=kb.printer.friendly&id=1#p221
*/
public static long gccodeToGCId(final String gccode) {
long gcid = 0;
long base = GC_BASE31;
String geocodeWO = gccode.substring(2).toUpperCase();
if ((geocodeWO.length() < 4) || (geocodeWO.length() == 4 && SEQUENCE_GCID.indexOf(geocodeWO.charAt(0)) < 16)) {
base = GC_BASE16;
}
for (int p = 0; p < geocodeWO.length(); p++) {
gcid = base * gcid + SEQUENCE_GCID.indexOf(geocodeWO.charAt(p));
}
if (base == GC_BASE31) {
gcid += Math.pow(16, 4) - 16 * Math.pow(31, 3);
}
return gcid;
}
private GCConstants() {
// this class shall not have instances
}
}
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