Delete scribble-common.js
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2141efe993
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874a94739c
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// Common functionality for PLT documentation pages
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// Page Parameters ------------------------------------------------------------
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var page_query_string =
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(location.href.search(/\?([^#]+)(?:#|$)/) >= 0) && RegExp.$1;
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var page_args =
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((function(){
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if (!page_query_string) return [];
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var args = page_query_string.split(/[&;]/);
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for (var i=0; i<args.length; i++) {
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var a = args[i];
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var p = a.indexOf('=');
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if (p >= 0) args[i] = [a.substring(0,p), a.substring(p+1)];
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else args[i] = [a, false];
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}
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return args;
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})());
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function GetPageArg(key, def) {
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for (var i=0; i<page_args.length; i++)
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if (page_args[i][0] == key) return unescape(page_args[i][1]);
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return def;
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}
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function MergePageArgsIntoLink(a) {
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if (page_args.length == 0 ||
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(!a.attributes["data-pltdoc"]) || (a.attributes["data-pltdoc"].value == ""))
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return;
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a.href.search(/^([^?#]*)(?:\?([^#]*))?(#.*)?$/);
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if (RegExp.$2.length == 0) {
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a.href = RegExp.$1 + "?" + page_query_string + RegExp.$3;
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} else {
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// need to merge here, precedence to arguments that exist in `a'
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var i, j;
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var prefix = RegExp.$1, str = RegExp.$2, suffix = RegExp.$3;
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var args = str.split(/[&;]/);
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for (i=0; i<args.length; i++) {
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j = args[i].indexOf('=');
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if (j) args[i] = args[i].substring(0,j);
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}
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var additions = "";
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for (i=0; i<page_args.length; i++) {
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var exists = false;
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for (j=0; j<args.length; j++)
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if (args[j] == page_args[i][0]) { exists = true; break; }
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if (!exists) str += "&" + page_args[i][0] + "=" + page_args[i][1];
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}
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a.href = prefix + "?" + str + suffix;
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}
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}
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// Cookies --------------------------------------------------------------------
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// Actually, try localStorage (a la HTML 5), first.
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function GetCookie(key, def) {
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try {
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var v = localStorage[key];
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if (!v) v = def;
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return v;
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} catch (e) {
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var i, cookiestrs;
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try {
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if (document.cookie.length <= 0) return def;
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cookiestrs = document.cookie.split(/; */);
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} catch (e) { return def; }
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for (i = 0; i < cookiestrs.length; i++) {
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var cur = cookiestrs[i];
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var eql = cur.indexOf('=');
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if (eql >= 0 && cur.substring(0,eql) == key)
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return unescape(cur.substring(eql+1));
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}
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return def;
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}
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}
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function SetCookie(key, val) {
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try {
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localStorage[key] = val;
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} catch(e) {
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var d = new Date();
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d.setTime(d.getTime()+(365*24*60*60*1000));
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try {
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document.cookie =
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key + "=" + escape(val) + "; expires="+ d.toGMTString() + "; path=/";
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} catch (e) {}
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}
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}
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// note that this always stores a directory name, ending with a "/"
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function SetPLTRoot(ver, relative) {
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var root = location.protocol + "//" + location.host
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+ NormalizePath(location.pathname.replace(/[^\/]*$/, relative));
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SetCookie("PLT_Root."+ver, root);
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}
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// adding index.html works because of the above
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function GotoPLTRoot(ver, relative) {
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var u = GetCookie("PLT_Root."+ver, null);
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if (u == null) return true; // no cookie: use plain up link
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// the relative path is optional, default goes to the toplevel start page
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if (!relative) relative = "index.html";
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location = u + relative;
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return false;
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}
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// Utilities ------------------------------------------------------------------
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var normalize_rxs = [/\/\/+/g, /\/\.(\/|$)/, /\/[^\/]*\/\.\.(\/|$)/];
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function NormalizePath(path) {
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var tmp, i;
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for (i = 0; i < normalize_rxs.length; i++)
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while ((tmp = path.replace(normalize_rxs[i], "/")) != path) path = tmp;
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return path;
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}
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// `noscript' is problematic in some browsers (always renders as a
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// block), use this hack instead (does not always work!)
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// document.write("<style>mynoscript { display:none; }</style>");
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// Interactions ---------------------------------------------------------------
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function DoSearchKey(event, field, ver, top_path) {
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var val = field.value;
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if (event && event.keyCode == 13) {
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var u = GetCookie("PLT_Root."+ver, null);
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if (u == null) u = top_path; // default: go to the top path
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u += "search/index.html?q=" + escape(val);
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if (page_query_string) u += "&" + page_query_string;
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location = u;
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return false;
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}
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return true;
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}
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function TocviewToggle(glyph, id) {
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var s = document.getElementById(id).style;
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var expand = s.display == "none";
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s.display = expand ? "block" : "none";
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glyph.innerHTML = expand ? "▼" : "►";
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}
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// Page Init ------------------------------------------------------------------
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// Note: could make a function that inspects and uses window.onload to chain to
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// a previous one, but this file needs to be required first anyway, since it
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// contains utilities for all other files.
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var on_load_funcs = [];
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function AddOnLoad(fun) { on_load_funcs.push(fun); }
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window.onload = function() {
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for (var i=0; i<on_load_funcs.length; i++) on_load_funcs[i]();
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};
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AddOnLoad(function(){
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var links = document.getElementsByTagName("a");
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for (var i=0; i<links.length; i++) MergePageArgsIntoLink(links[i]);
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var label = GetPageArg("ctxtname",false);
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if (!label) return;
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var indicator = document.getElementById("contextindicator");
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if (!indicator) return;
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indicator.innerHTML = label;
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indicator.style.display = "block";
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});
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