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The zero-width non-joiner (ZWNJ) is a non-printing character used in the computerization of writing systems that make use of ligatures. When placed between two characters that would otherwise be connected into a ligature, a ZWNJ causes them to be printed in their final and initial forms, respectively. This is also an effect of a space character, but a ZWNJ is used when it is desirable to keep the words closer together or to connect a word with its morpheme. The ZWNJ is encoded in Unicode as . == Use of the ZWNJ and US for correct typography == In certain languages, the ZWNJ is necessary to unambiguously specify the correct typographic form of a character sequence. The ASCII control code Unit Separator was formerly used for this. In the Biblical Hebrew example, the placement of the holam dot to the left of the letter ' ⟨⟩ is correct. If a dot were placed over the ⟨⟩, it would resemble ⟨⟩, "seasons". In Modern Hebrew, there is no reason to use the ' after the ', and the ligature is not needed, so it is rarely used in Modern Hebrew typesetting. In German typography, ligatures may not cross the constituent boundaries within compounds. Thus, in the first German example, the prefix ''Auf-'' is separated from the rest of the word to prohibit the ligature ''fl''. Persian uses this character extensively for certain prefixes, suffixes and compound words,〔(【引用サイトリンク】title=The Zero-Width-Non-Joiner )〕 and is necessary to disambiguate between non-compound words, which uses a full space. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Zero-width non-joiner」の詳細全文を読む スポンサード リンク
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