Added Sieve parser code in master

dev/Sieve/Extensions/rfc5235.js

@@ -0,0 +1,77 @@
+/**
+ * https://tools.ietf.org/html/rfc5235
+ */
+
+import {
+	GrammarQuotedString,
+	GrammarString,
+	GrammarTest
+} from 'Sieve/Grammar';
+
+export class SpamTestCommand extends GrammarTest
+{
+	constructor()
+	{
+		super();
+		this.percent = false, // 0 - 100 else 0 - 10
+		this.value = new GrammarQuotedString;
+	}
+
+//	get require() { return this.percent ? 'spamtestplus' : 'spamtest'; }
+	get require() { return /:value|:count/.test(this.match_type) ? ['spamtestplus','relational'] : 'spamtestplus'; }
+
+	toString()
+	{
+		return 'spamtest'
+			+ (this.percent ? ' :percent' : '')
+			+ (this.comparator ? ' :comparator ' + this.comparator : '')
+			+ ' ' + this.match_type
+			+ ' ' + this.value;
+	}
+
+	pushArguments(args)
+	{
+		args.forEach(arg => {
+			if (':percent' === arg) {
+				this.percent = true;
+			} else if (arg instanceof GrammarString) {
+				this.value = arg;
+			}
+		});
+	}
+}
+
+export class VirusTestCommand extends GrammarTest
+{
+	constructor()
+	{
+		super();
+		this.value = new GrammarQuotedString; // 1 - 5
+	}
+
+	get require() { return /:value|:count/.test(this.match_type) ? ['virustest','relational'] : 'virustest'; }
+
+	toString()
+	{
+		return 'virustest'
+			+ (this.comparator ? ' :comparator ' + this.comparator : '')
+			+ ' ' + this.match_type
+			+ ' ' + this.value;
+	}
+
+	pushArguments(args)
+	{
+		args.forEach(arg => {
+			if (arg instanceof GrammarString) {
+				this.value = arg;
+			}
+		});
+	}
+}
+
+/*
+Object.assign(Sieve.Commands, {
+	spamtest: SpamTestCommand,
+	virustest: VirusTestCommand
+});
+*/