libSBML Perl API
libSBML 5.10.0 Perl API
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SId
, which defines the permitted syntax of identifiers. We express the syntax using an extended form of BNF notation: letter ::= 'a'..'z','A'..'Z' digit ::= '0'..'9' idChar ::= letter | digit | '_' SId ::= ( letter | '_' ) idChar*The characters
(
and )
are used for grouping, the character *
"zero or more times", and the character |
indicates logical "or". The equality of SBML identifiers is determined by an exact character sequence match; i.e., comparisons must be performed in a case-sensitive manner. In addition, there are a few conditions for the uniqueness of identifiers in an SBML model. Please consult the SBML specifications for the exact details of the uniqueness requirements.