NAME
SPVM::StringBuffer - String buffer
SYNOPSYS
use SPVM::StringBuffer;
# new
my $buffer = SPVM::StringBuffer->new;
# push string
$buffer->push("abc");
$buffer->push("def");
# Convert to string - abcdef
my $str = $buffer->to_string;
# Cat sub string - bcd
my $offset = 1;
my $length = 3;
my $substr = $buffer->substr($offset, $length);
# Search string
my $search = "cd";
my $start_pos = 1;
my $found_pos = $buffer->index($search, $start_pos);
# new with option
my $buffer = SPVM::StringBuffer->new_opt([(object)capacity => 256]);DESCRIPTION
String buffer. Performance is better than concat operator when many strings is joined.
CLASS METHODS
new
sub new : SPVM::StringBuffer ()Create new SPVM::StringBuffer object which capacity is 16 bytes without string
new_opt
sub new_opt : SPVM::StringBuffer ($options : object[])Create new SPVM::StringBuffer object with options.
capacity : SPVM::Int
Capacity of string buffer. Capacity must be more than 0.
INSTANCE METHODS
length
sub length : int ($self : self)Get string length.
capacity
sub capacity : int ($self : self)Get capacity of string buffer.
push
sub push : void ($self : self, $string : string)Push string to string buffer.
to_string
sub to_string : string ($self : self)Convert string buffer to string.
substr
sub substr : string ($self : self, $offset : int, $length : int)Get sub string.
index
sub index : int ($self : self, $search : string, $offset : int)Search string. Return value is position of found string.
If string is not found, Return value is -1.
clear
sub clear : void ($self : self)Clear string.