Documentation for POS Intellect 5.4. Documentation for other versions of Intellect is available too.
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To specify, for example, space in a search condition, it's required to make it visible, i.e. enter some symbol or set of symbols which will be identified as invisible.
\s - letter s after the backslash describe space or tabulation character. Space also can be specified the general way, but [a-z\s] template will be more clear than [a-z ]. Use this symbols carefully because it's the same as space, tabulation and a symbol of new string.
\S - visible symbols. i.e. all symbols which are not coincide with \s
\w - special symbol exchanging the whole symbol sorting and containing all symbols which can be specified in a word, mostly it is [a-zA-Z_], but it depends on installed localization, Unicode supporting, etc.
\W - all symbols which are not coincide with \w or [^a-zA-A_]
\d - all digits, i.e. [0-9]
\D - non-digit symbols
Often special symbols describe commonly used character sets, but these sets have boundaries, i.e. digits, letters and underlining or invisible symbols. To describe all symbols use a point. For example,
.{5} - five different symbols.
To describe a point, set the backslash before it: \.
To search a backslash after which a point is going, enter the double slash as literal in a search condition:
Similarly, to enter two backslashes, it's required to double them: \\\\