A string literal is made up from a string of characters inside double quotes, along with escape characters to allow for special characters to be used. It evaluates to a fixed string (an actual human readable string).
This page describes the syntax for string literal expressions in PhixFlow.
All expressions in PhixFlow are written in the PhixFlow scripting language, //and every expression resolves to one of the following:
- A regular expresion, following the POSIX style
- A string literal expression
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Regular expressions are used for text pattern-matching, whereas string literals can be used both to do literal character matching and provide output values. In simple terms, writing a string literal expression for a string valued field on a stream would result in a (that) string being output to the database, but a regular expression would have no meaning in this context.
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