add google script files

gs/EncodeUrlSlug.gs

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+function EncodeUrlSlug(slug) {
+    if (slug instanceof Array) {
+        for (i in slug) {
+            slug[i] = EncodeUrlSlug(slug[i]);
+        }
+        return slug;
+    } else {
+        if (slug) {
+            var charDict = [
+                [" ", "%20"],
+                ["\"", "%22"],
+                [":", "%3A"],
+                ["'", "%27"],
+                ["+", "%2B"],
+                ["(", "%28"],
+                [")", "%29"],
+                [".", ""]
+            ];
+            for (i = 0; i < charDict.length; ++i) {
+                slug = slug.split(charDict[i][0]).join(charDict[i][1]);
+            }
+            return slug;
+        } else {
+            return "";
+        }
+    }
+}

gs/GenerateHtmlAddLink.gs

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+function GenerateHtmlAddLink(url, listName) {
+    if (url instanceof Array) {
+        for (i in url) {
+            url[i] = GenerateHtmlAddLink(url[i], listName[i]);
+        }
+        return url;
+    } else {
+        if (url) {
+            var html = "<a href=\"abp:subscribe?location=" + url + "&title=" + listName + "\" title=\"Subscribe to " + listName + " in your content blocker.\" class=\"button\">Add</a>";
+            return html;
+        } else {
+            return "";
+        }
+    }
+}

gs/GenerateHtmlChangelogLink.gs

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+function GenerateHtmlChangelogLink(url, listName) {
+    if (url instanceof Array) {
+        for (i in url) {
+            url[i] = GenerateHtmlChangelogLink(url[i], listName[i]);
+        }
+        return url;
+    } else {
+        if (url) {
+            var html = "<a href=\"" + url + "\" title=\"" + listName + " Changelog\" class=\"button\">Changelog</a>";
+            return html;
+        } else {
+            return "";
+        }
+    }
+}

gs/GenerateHtmlDonateLink.gs

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+function GenerateHtmlDonateLink(url, listName) {
+    if (url instanceof Array) {
+        for (i in url) {
+            url[i] = GenerateHtmlDonateLink(url[i], listName[i]);
+        }
+        return url;
+    } else {
+        if (url) {
+            var html = "<a href=\"" + url + "\" title=\"Donate to support the maintainers of " + listName + ".\" class=\"button\">Donate</a>";
+            return html;
+        } else {
+            return "";
+        }
+    }
+}

gs/GenerateHtmlEmailLink.gs

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+function GenerateHtmlEmailLink(url, listName) {
+    if (url instanceof Array) {
+        for (i in url) {
+            url[i] = GenerateHtmlEmailLink(url[i], listName[i]);
+        }
+        return url;
+    } else {
+        if (url) {
+            var html = "<a href=\"mailto:" + url + "\" title=\"Contribute to " + listName + " via email.\" class=\"button\">Email</a>";
+            return html;
+        } else {
+            return "";
+        }
+    }
+}

gs/GenerateHtmlForksCombosLink.gs

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+function GenerateHtmlForksCombosLink(forkComboListName, filterListsPageSlug) {
+    if (forkComboListName instanceof Array) {
+        for (i in forkComboListName) {
+            forkComboListName[i] = GenerateHtmlForksCombosLink(forkComboListName[i], filterListsPageSlug[i]);
+        }
+        return forkComboListName;
+    } else {
+        // return null if no List Name provided
+        if (forkComboListName == null) {
+            return null;
+            // concatenate HTML link tag
+        } else {
+            var html = "<a href=\"https://beta.filterlists.com" + filterListsPageSlug + "#" + TrimUrlSlug(forkComboListName) + "\"";
+            return html;
+        }
+    }
+}

gs/GenerateHtmlForumLink.gs

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+function GenerateHtmlForumLink(url, listName) {
+    if (url instanceof Array) {
+        for (i in url) {
+            url[i] = GenerateHtmlForumLink(url[i], listName[i]);
+        }
+        return url;
+    } else {
+        if (url) {
+            var html = "<a href=\"" + url + "\" title=\"" + listName + " Forum\" class=\"button\">Forum</a>";
+            return html;
+        } else {
+            return "";
+        }
+    }
+}

gs/GenerateHtmlGuideLink.gs

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+function GenerateHtmlGuideLink(url, listName) {
+    if (url instanceof Array) {
+        for (i in url) {
+            url[i] = GenerateHtmlGuideLink(url[i], listName[i]);
+        }
+        return url;
+    } else {
+        if (url) {
+            var html = "<a href=\"" + url + "\" title=\"" + listName + " Guide\" class=\"button\">Guide</a>";
+            return html;
+        } else {
+            return "";
+        }
+    }
+}

gs/GenerateHtmlHomeLink.gs

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+function GenerateHtmlHomeLink(url, listName) {
+    if (url instanceof Array) {
+        for (i in url) {
+            url[i] = GenerateHtmlHomeLink(url[i], listName[i]);
+        }
+        return url;
+    } else {
+        if (url) {
+            var html = "<a href=\"" + url + "\" title=\"" + listName + " Home Page\" class=\"button\">Home</a>";
+            return html;
+        } else {
+            return "";
+        }
+    }
+}

gs/GenerateHtmlIssuesLink.gs

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+function GenerateHtmlIssuesLink(url, listName) {
+    if (url instanceof Array) {
+        for (i in url) {
+            url[i] = GenerateHtmlIssuesLink(url[i], listName[i]);
+        }
+        return url;
+    } else {
+        if (url) {
+            var html = "<a href=\"" + url + "\" title=\"" + listName + " GitHub Issues\" class=\"button\">Issues</a>";
+            return html;
+        } else {
+            return "";
+        }
+    }
+}

gs/GenerateHtmlListName.gs

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+function GenerateHtmlListName(listName) {
+    if (listName instanceof Array) {
+        for (i in listName) {
+            listName[i] = GenerateHtmlListName(listName[i]);
+        }
+        return listName;
+    } else {
+        if (listName) {
+            var html = "<h3 id=\"" + listName + "\">" + listName + "</h3>";
+            return html;
+        } else {
+            return "";
+        }
+    }
+}

gs/GenerateHtmlViewLink.gs

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+function GenerateHtmlViewLink(url, listName) {
+    if (url instanceof Array) {
+        for (i in url) {
+            url[i] = GenerateHtmlViewLink(url[i], listName[i]);
+        }
+        return url;
+    } else {
+        if (url) {
+            var html = "<a href=\"" + url + "\" title=\"Preview " + listName + " in your browser.\" class=\"button\">View</a>";
+            return html;
+        } else {
+            return "";
+        }
+    }
+}

gs/GetLastUpdated.gs

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+//https://archive.org/help/wayback_api.php
+//https://developers.google.com/apps-script/guides/services/external
+//http://momentjs.com/
+var moment = Moment.load();
+
+function GetLastUpdated(urlToCheck) {
+    urlToCheck = urlToCheck.replace("http://", "");
+    urlToCheck = urlToCheck.replace("https://", "");
+    var apiCall = 'http://archive.org/wayback/available?url=' + urlToCheck;
+    try {
+        var response = UrlFetchApp.fetch(apiCall);
+    } catch (e) {
+        var sleepTime = Math.floor(Math.random() * 9000) + 1000;
+        Utilities.sleep(sleepTime);
+        var response = UrlFetchApp.fetch(apiCall);
+    }
+    var json = response.getContentText();
+    var data = JSON.parse(json);
+    return moment(data.archived_snapshots.closest.timestamp, "YYYYMMDDhhmmss").fromNow();;
+}

gs/TrimUrlSlug.gs

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+function TrimUrlSlug(slug) {
+    if (slug instanceof Array) {
+        for (i in slug) {
+            slug[i] = TrimUrlSlug(slug[i]);
+        }
+        return slug;
+    } else {
+        if (slug) {
+            var charDict = [
+                [" ", ""],
+                ["\"", ""],
+                [":", ""],
+                ["'", ""],
+                ["+", ""],
+                ["(", ""],
+                [")", ""],
+                [".", ""]
+            ];
+            for (i = 0; i < charDict.length; ++i) {
+                slug = slug.split(charDict[i][0]).join(charDict[i][1]);
+            }
+            return slug;
+        } else {
+            return "";
+        }
+    }
+}