ISO 10303-21:2016(E)
The graphic character combinations as specified in Table 6 may be used to control the printed appearance of an exchange structure. Except as noted below, these directives may appear at any position where a token separator may appear, and within strings and binaries. Details on token separators are given in Table 3. The graphic character combinations shall appear together without any intervening graphic characters.
Explicit print control directives are also allowed within strings. The directives "\N\" and "\F\" do not contribute to the effective contents of the string. For the encoding of strings see 6.4.3. The print control directives "\N\" and "\F\" are relevant only for the printed presentation of the exchange structure and are to be ignored otherwise. Annex G provides guidance on the printing of the exchange structure.
The directives shall not appear within UNIVERSAL_RESOURCE_IDENTIFIER tokens, within the anchor section (see 9), or the reference section (see 10).
Graphic character sequence | Meaning |
---|---|
\N\ REVERSE_SOLIDUS N REVERSE_SOLIDUS | NEWLINE |
\F\ REVERSE_SOLIDUS F REVERSE_SOLIDUS | FORMFEED |
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