Visara Master Console Center Scripting Guide Manuale Utente Scaricare il pdf (Pagina 58)

Chapter 4 Regular Expressions

Scripting Guide 58

Inside bracket expressions, the following are true:

 The special characters ‘.’ , ‘*’, ‘[‘, and ‘\’ (period, asterisk, left bracket,

and backslash) lose their special meanings within a bracket

expression and become ordinary characters.

 The character sequences ‘[.’, ‘[=’, and ‘[:’ (left bracket followed by a

period, equal sign, or colon) are special inside a bracket expression

and are used according to Table 8. Beginning Character Sequences in

Bracket Expressions. A valid expression and the matching

terminating sequence ‘.]’, ‘=]’, or ‘:]’ must follow these symbols.

Beginning Character

Sequence:

Used to: Terminating

Sequence:

[. Delimit collating symbols. .]

[= Delimit equivalence class

expressions.

[: Delimit character class

expressions.

Table 8. Beginning Character Sequences in Bracket Expressions

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 261 262

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Visara Master Console Center Scripting Guide Manuale Utente Pagina 58