אֵ to represent /e/). The way in which the are set in the heading of the Weinreich article (in his name) is discussed below. Computerized text production There are orthographic alternatives in the digital representation of Yiddish text that may not be visually apparent but are of crucial importance to computer applications that compare two sequences of characters to determine if they match exactly. Examples of this are database queries and spell checkers. Situations where differing representations of typographically similar characters can give unexpected or incorrect results are described below. This may prove a particular concern for Internet users as Yiddish is increasingly used in Internationalized Domain Names, and in Web and e-mail addresses. Some mobile clients only provide limited support for typing pointed text, restricting the range of available characters for such things as instant messaging and other forms of spontaneous digital text. Even people who are skilled in using laptop or desktop keyboards for that purpose (which also requires some erudition) are subject to this constraint. This fuels the move toward unpointed text and is illustrated in the blog, Yiddish with an alef. This is of particular note given the late acceptance of the SYO by its parent publication, The Jewish Daily Forward, discussed below. Digraphs There are two different ways in which each of the digraphs tsvey vovn, vov yud, and tsvey yudn can be typed on Yiddish and Hebrew keyboards (which are both commonly used for the production of Yiddish text). If the digraph appears on a single key, as is normal in a Yiddish keyboard layout, pressing that key will produce a single-character ligature. In the Unicode code chart the HEBREW LIGATURE YIDDISH DOUBLE VAV appears in position U+05F0, the HEBREW LIGATURE YIDDISH VAV YOD at U+05F1, and the HEBREW LIGATURE YIDDISH DOUBLE YOD at U+05F2 (where the "U+" indicates that the numerical position of the character in the Unicode chart is given by following four hexadecimal digits). These ligatures are, however, frequently missing from Hebrew keyboards — a characteristic inherited from the similarly differentiated Yiddish and Hebrew typewriter layouts. A separate vov yud was, however, not provided on either. Hebrew typewriters were modified specifically for Yiddish by the replacement of the first two keys in the second row, which were used for punctuation marks, with one shifting key for "tsvey yudn/tsvey vovn" and another for "komets alef/pey" (with dagesh). This can be seen on