Scanning Station uses a custom regular-expression alphabet for validating registration-parameter values. The tokens below describe the available syntax.Documentation Index
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| Name | Conventional designation | Usage example |
|---|---|---|
| Any character | * | `"c"*"t"` allows words like cat, cot, etc. |
| Letter | C | `C"ot"` allows words like Rot, pot, cot, Dot, mot, etc. |
| Uppercase letter | A | `A"ot"` allows words like Rot, Cot, Mot, Dot, etc. |
| Lowercase letter | a | `a"ot"` allows words like rot, cot, mot, dot, etc. |
| Letter or number | X | `X` allows any standalone number or letter. |
| Number | N | `N"th"` allows words like 5th, 4th, 6th, etc. |
| String | " " | `"cot"` |
| Or | | | `"pl"("o"|"a")"t"` allows "plot" and "plat". |
| Character from group | [] | `[tm]"ot"` allows "tot" and "mot". |
| Character not from group | [^] | `[^t]"ot"` allows "cot", "lot", etc., but not "tot". |
| Space (within group) | \s | `[A\s]` allows only the letter A or a space. |
| Any number of repetitions | {-} | `[AB74]{-}` allows any combination of A, B, 7, 4 of any length. |
| Exactly n repetitions | {n} | `N{2}"th"` allows 25th, 84th, 11th, etc. |
| From n to m repetitions | {n-m} | `N{1-3}"th"` allows 5th, 84th, 111th, etc. |
| From 0 to n repetitions | {-n} | `N{-2}"th"` allows 84th, 5th, etc. |
| n or more repetitions | {n-} | `N{2-}"th"` allows 25th, 834th, 311th, 34576th, etc. |
| Subexpression | () | — |
| Hyphen symbol | [\-] | — |
| Slash symbol | [\\] | — |
Examples of regular expressions
| Purpose | Pattern | Sample values |
|---|---|---|
| Postal code | [0-9]{6} | 142172 |
| Zip code (USA) | [0-9]{5}("-"[0-9]{4}){-1} | 55416, 33701-4313 |
| Income | N{4-8}[,]N{2} | 15000,00, 4499,00 |
| Month (numerical) | ((|"0")[1-9])|("10")|("11")|("12") | 4, 05, 12 |
| Fraction | ("-"|)([0-9]{1-})(|((".",")([0-9]{1-}))) | 1234,567, 0.99, 100,0, -345.6788903 |
[A-Za-z0-9_]{1-}((".""-")[A-Za-z0-9_]{1-}){-3}"@"[A-Za-z0-9_]{1-}((".""-")[A-Za-z0-9_]{1-}){-4}"."([A-Za-z]{2-4}|"asia"|"museum"|"travel"|"example"|"localhost") | support@abbyy.com, my-name@company.org.ru, info@gallery.museum |