晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 sh-3ll

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sh-3ll 1.0
DIR:/proc/self/root/lib64/perl5/vendor_perl/DBI/
Upload File :
Current File : //proc/self/root/lib64/perl5/vendor_perl/DBI/ProfileSubs.pm
package DBI::ProfileSubs;

our $VERSION = "0.009396";

=head1 NAME

DBI::ProfileSubs - Subroutines for dynamic profile Path

=head1 SYNOPSIS

  DBI_PROFILE='&norm_std_n3' prog.pl

This is new and still experimental.

=head1 TO DO

Define come kind of naming convention for the subs.

=cut

use strict;
use warnings;


# would be good to refactor these regex into separate subs and find some
# way to compose them in various combinations into multiple subs.
# Perhaps via AUTOLOAD where \&auto_X_Y_Z creates a sub that does X, Y, and Z.
# The final subs always need to be very fast.
#

sub norm_std_n3 {
    # my ($h, $method_name) = @_;
    local $_ = $_;

    s/\b\d+\b/<N>/g;             # 42 -> <N>
    s/\b0x[0-9A-Fa-f]+\b/<N>/g;  # 0xFE -> <N>

    s/'.*?'/'<S>'/g;             # single quoted strings (doesn't handle escapes)
    s/".*?"/"<S>"/g;             # double quoted strings (doesn't handle escapes)

    # convert names like log20001231 into log<N>
    s/([a-z_]+)(\d{3,})\b/${1}<N>/ig;

    # abbreviate massive "in (...)" statements and similar
    s!((\s*<[NS]>\s*,\s*){100,})!sprintf("$2,<repeated %d times>",length($1)/2)!eg;

    return $_;
}

1;