StringScanner.pm.svn-base
上传用户:market2
上传日期:2018-11-18
资源大小:18786k
文件大小:2k
源码类别:
外挂编程
开发平台:
Windows_Unix
- package Utils::StringScanner;
- use strict;
- use warnings;
- sub new {
- my ($class, $string) = @_;
- my %self = (str => $string);
- return bless %self, $class;
- }
- sub scan {
- my ($self, $regex) = @_;
- if (ref($regex) ne 'Regexp') {
- $regex = quotemeta $regex;
- }
- if ($self->{str} =~ /^$regex/sx) {
- return substr($self->{str}, 0, $+[0], '');
- } else {
- return;
- }
- }
- sub scanUntil {
- my ($self, $regex) = @_;
- if (ref($regex) ne 'Regexp') {
- $regex = quotemeta $regex;
- }
- if ($self->{str} =~ /$regex/sx) {
- return substr($self->{str}, 0, $-[0], '');
- } else {
- return;
- }
- }
- sub peek {
- my ($self, $regex) = @_;
- if (ref($regex) ne 'Regexp') {
- $regex = quotemeta $regex;
- }
- if ($self->{str} =~ /^$regex/sx) {
- return substr($self->{str}, 0, $+[0]);
- } else {
- return;
- }
- }
- sub peekUntil {
- my ($self, $regex) = @_;
- if (ref($regex) ne 'Regexp') {
- $regex = quotemeta $regex;
- }
- if ($self->{str} =~ /$regex/sx) {
- return substr($self->{str}, 0, $-[0]);
- } else {
- return;
- }
- }
- sub skip {
- my ($self, $regex) = @_;
- if (ref($regex) ne 'Regexp') {
- $regex = quotemeta $regex;
- }
- if ($self->{str} =~ /^$regex/sx) {
- substr($self->{str}, 0, $+[0], '');
- return $+[0];
- } else {
- return;
- }
- }
- sub skipUntil {
- my ($self, $regex) = @_;
- if (ref($regex) ne 'Regexp') {
- $regex = quotemeta $regex;
- }
- if ($self->{str} =~ /$regex/sx) {
- substr($self->{str}, 0, $-[0], '');
- return $+[0];
- } else {
- return;
- }
- }
- sub rest {
- my ($self) = @_;
- return $self->{str};
- }
- sub terminate {
- $_[0]->{str} = '';
- }
- sub eos {
- my ($self) = @_;
- return length($self->{str}) == 0;
- }
- 1;