Struct hyperscan_sys::hs_expr_info

#[repr(C)]
pub struct hs_expr_info {
    pub min_width: c_uint,
    pub max_width: c_uint,
    pub unordered_matches: c_char,
    pub matches_at_eod: c_char,
    pub matches_only_at_eod: c_char,
}

A type containing information related to an expression that is returned by @ref hs_expression_info() or @ref hs_expression_ext_info.

Fields

min_width: c_uint

The minimum length in bytes of a match for the pattern.

Note: in some cases when using advanced features to suppress matches (such as extended parameters or the @ref HS_FLAG_SINGLEMATCH flag) this may represent a conservative lower bound for the true minimum length of a match.

max_width: c_uint

The maximum length in bytes of a match for the pattern. If the pattern has an unbounded maximum length, this will be set to the maximum value of an unsigned int (UINT_MAX).

Note: in some cases when using advanced features to suppress matches (such as extended parameters or the @ref HS_FLAG_SINGLEMATCH flag) this may represent a conservative upper bound for the true maximum length of a match.

unordered_matches: c_char

Whether this expression can produce matches that are not returned in order, such as those produced by assertions. Zero if false, non-zero if true.

matches_at_eod: c_char

Whether this expression can produce matches at end of data (EOD). In streaming mode, EOD matches are raised during @ref hs_close_stream(), since it is only when @ref hs_close_stream() is called that the EOD location is known. Zero if false, non-zero if true.

Note: trailing \b word boundary assertions may also result in EOD matches as end-of-data can act as a word boundary.

matches_only_at_eod: c_char

Whether this expression can only produce matches at end of data (EOD). In streaming mode, all matches for this expression are raised during @ref hs_close_stream(). Zero if false, non-zero if true.

Trait Implementations

impl Clone for hs_expr_info

fn clone(&self) -> hs_expr_info

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for hs_expr_info

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for hs_expr_info

fn default() -> hs_expr_info

Returns the “default value” for a type.

impl PartialEq<hs_expr_info> for hs_expr_info

fn eq(&self, other: &hs_expr_info) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for hs_expr_info

impl Eq for hs_expr_info

impl StructuralEq for hs_expr_info

impl StructuralPartialEq for hs_expr_info