Added Sieve parser code in master

dev/Sieve/Extensions/rfc5260.js

@@ -0,0 +1,106 @@
+/**
+ * https://tools.ietf.org/html/rfc5260
+ */
+
+import {
+	GrammarNumber,
+	GrammarQuotedString,
+	GrammarStringList,
+	GrammarTest
+} from 'Sieve/Grammar';
+
+export class DateCommand extends GrammarTest
+{
+	constructor()
+	{
+		super();
+		this.zone         = new GrammarQuotedString;
+		this.originalzone = false;
+		this.header_name  = new GrammarQuotedString;
+		this.date_part    = new GrammarQuotedString;
+		this.key_list     = new GrammarStringList;
+		// rfc5260#section-6
+		this.index        = new GrammarNumber;
+		this.last         = false;
+	}
+
+//	get require() { return ['date','index']; }
+	get require() { return 'date'; }
+
+	toString()
+	{
+		return 'date'
+			+ (this.last ? ' :last' : (this.index.value ? ' :index ' + this.index : ''))
+			+ (this.originalzone ? ' :originalzone' : (this.zone.length ? ' :zone ' + this.zone : ''))
+			+ (this.comparator ? ' :comparator ' + this.comparator : '')
+			+ ' ' + this.match_type
+			+ ' ' + this.header_name
+			+ ' ' + this.date_part
+			+ ' ' + this.key_list.toString();
+	}
+
+	pushArguments(args)
+	{
+		let l = args.length - 1;
+		args.forEach((arg, i) => {
+			if (':originalzone' === arg) {
+				this.originalzone = true;
+			} else if (':last' === arg) {
+				this.last = true;
+			} else if (':zone' === args[i-1]) {
+				this.zone.value = arg.value;
+			} else if (':index' === args[i-1]) {
+				this.index.value = arg.value;
+			} else if (l-2 === i) {
+				this.header_name = arg;
+			} else if (l-1 === i) {
+				this.date_part = arg;
+			} else if (l === i) {
+				this.key_list = arg;
+			}
+		});
+	}
+}
+
+export class CurrentDateCommand extends GrammarTest
+{
+	constructor()
+	{
+		super('date');
+		this.zone       = new GrammarQuotedString;
+		this.date_part  = new GrammarQuotedString;
+		this.key_list   = new GrammarStringList;
+	}
+
+	get require() { return 'date'; }
+
+	toString()
+	{
+		return 'date'
+			+ (this.zone.length ? ' :zone ' + this.zone : '')
+			+ (this.comparator ? ' :comparator ' + this.comparator : '')
+			+ ' ' + this.match_type
+			+ ' ' + this.date_part
+			+ ' ' + this.key_list.toString();
+	}
+
+	pushArguments(args)
+	{
+		let l = args.length - 1;
+		args.forEach((arg, i) => {
+			if (':zone' === args[i-1]) {
+				this.zone.value = arg.value;
+			} else if (l-1 === i) {
+				this.date_part = arg;
+			} else if (l === i) {
+				this.key_list = arg;
+			}
+		});
+	}
+}
+
+/*
+Object.assign(Sieve.Commands, {
+	date: DateTestCommand,
+	currentdate: CurrentDateCommand
+*/