July 2002
Intermediate to advanced
560 pages
11h 10m
English
Content preview from Secure XML: The New Syntax for Signatures and Encryption
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6.4. Expressions
Expressions in XPath include the sorts of structures, operators, and data types found in most computer languages, albeit with a few differences. This section gives an overview of these distinguishing features. Consult the XPath Recommendation [XPath] for the full details. Note that location paths can appear in expressions, and expressions can appear in location paths as predicates (see Section 6.3.4).
| Abbreviation | Description |
| Examples | |
| // | Equivalent to the location step
/descendant-or-self::node()/ Because this path is defined as ending with a slash, it cannot occur at the end of a location path. Because it is defined as starting with a slash, when it occurs at the beginning of a location path, that ... |
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