Finalize the lexer rule set

# Parle\Lexer::build

(PECL parle >= 0.5.1)

Parle\Lexer::build — Finalize the lexer rule set

### Description

public Parle\Lexer::build(): void

Rules, previously added with Parle\Lexer::push() are finalized. This method call has to be done after all the necessary rules was pushed. The rule set becomes read only. The lexing can begin.

### Parameters

This function has no parameters.

### Return Values

No value is returned.

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