NAME¶

patcompile() - compiles a matching pattern

SYNOPSIS¶

int patcompile(pattern, length, aux)
	char *pattern;
	int length;
	int aux[];

DESCRIPTION¶

patcompile() compiles a pattern into an internal form which patmatch(3) can use.

The string at pattern with size length is scanned. The array aux is filled in with state information for patmatch(3). aux should have at least length elements.

RETURNS¶

Returns 0 if the pattern contains an error.

Other values should be passed to patmatch(3) as the alt argument.

SEE ALSO¶

match(1)

For a description ot the regular expressions.

NOTES¶

The pattern matching functions are based on ones presented by Martin Richards in "A Compact Function for Regular Expression Pattern Matching", Software-Practice and Experience vol 9, 527-534 (1979).