Select condition

It's possible to create a search condition using regular expressions. For example, there are two groups of literals: one of them contain two literals b and e going one after another, the other group contain nine literals going one after another: n, o, t, \s, t, o,\s, b, e.

\s is a space. Group of literals - is a sequence of symbols describing by symbol sorting or by literals. Group of literals is presenting in a brackets. They also save registered group of literals to special variables.

Examples of literal groups are follows:

(be)
(not\sto\sbe)

Select from two literal groups: (be)|(not\sto\sbe), "|" symbol between literals is a selection condition "or". Regular expression of checking:

(be)|(not\sto\sbe)

Regular expression is a similar if:

string is not equal "be"
or if string is not equal "not to be"

It's possible to select between literals and between groups of literals. Literal groups are combining in brackets. If it's required to select between two single literals, than two literals between there is a vertical line are to be combined in brackets.

Example of selection from two literals: s(o|u)n is son and sun.

Example of selection from two literal groups: (son)|(sun) is also son and sun.

In case of selection between single literals or between literal groups, literals are to be combined in brackets.

To enter "|" literal, it's require to enter a special symbol behind it which will mean that vertical line is a literal. This special symbol is a backslash: \|

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Documentation for POS PSIM 1.0.1.