Struct regex_syntax::ExprBuilder
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pub struct ExprBuilder {
// some fields omitted
}A builder for configuring regular expression parsing.
This allows setting the default values of flags and other options, such as the maximum nesting depth.
Methods
impl ExprBuilder
fn new() -> ExprBuilder
Create a new builder for configuring expression parsing.
Note that all flags are disabled by default.
fn case_insensitive(self, yes: bool) -> ExprBuilder
Set the default value for the case insensitive (i) flag.
fn multi_line(self, yes: bool) -> ExprBuilder
Set the default value for the multi-line matching (m) flag.
fn dot_matches_new_line(self, yes: bool) -> ExprBuilder
Set the default value for the any character (s) flag.
fn swap_greed(self, yes: bool) -> ExprBuilder
Set the default value for the greedy swap (U) flag.
fn ignore_whitespace(self, yes: bool) -> ExprBuilder
Set the default value for the ignore whitespace (x) flag.
fn unicode(self, yes: bool) -> ExprBuilder
Set the default value for the Unicode (u) flag.
If yes is false, then allow_bytes is set to true.
fn allow_bytes(self, yes: bool) -> ExprBuilder
Whether the Unicode flag can be used or not. By default, the flag is enabled but it cannot be toggled.
When disabled, use of the u flag will cause the parser to return an
error.
fn nest_limit(self, limit: usize) -> ExprBuilder
Set the nesting limit for regular expression parsing.
Regular expressions that nest more than this limit will result in a
StackExhausted error.
fn parse(self, s: &str) -> Result<Expr>
Parse a string as a regular expression using the current configuraiton.