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。
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/* idna.h --- Prototypes for Internationalized Domain Name library.
Copyright (C) 2002-2016 Simon Josefsson
This file is part of GNU Libidn.
GNU Libidn is free software: you can redistribute it and/or
modify it under the terms of either:
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version.
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version.
or both in parallel, as here.
GNU Libidn is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifndef IDNA_H
# define IDNA_H
# ifndef IDNAPI
# if defined LIBIDN_BUILDING && defined HAVE_VISIBILITY && HAVE_VISIBILITY
# define IDNAPI __attribute__((__visibility__("default")))
# elif defined LIBIDN_BUILDING && defined _MSC_VER && ! defined LIBIDN_STATIC
# define IDNAPI __declspec(dllexport)
# elif defined _MSC_VER && ! defined LIBIDN_STATIC
# define IDNAPI __declspec(dllimport)
# else
# define IDNAPI
# endif
# endif
# include <stddef.h> /* size_t */
# include <idn-int.h> /* uint32_t */
# ifdef __cplusplus
extern "C"
{
# endif
/* Error codes. */
typedef enum
{
IDNA_SUCCESS = 0,
IDNA_STRINGPREP_ERROR = 1,
IDNA_PUNYCODE_ERROR = 2,
IDNA_CONTAINS_NON_LDH = 3,
/* Workaround typo in earlier versions. */
IDNA_CONTAINS_LDH = IDNA_CONTAINS_NON_LDH,
IDNA_CONTAINS_MINUS = 4,
IDNA_INVALID_LENGTH = 5,
IDNA_NO_ACE_PREFIX = 6,
IDNA_ROUNDTRIP_VERIFY_ERROR = 7,
IDNA_CONTAINS_ACE_PREFIX = 8,
IDNA_ICONV_ERROR = 9,
/* Internal errors. */
IDNA_MALLOC_ERROR = 201,
IDNA_DLOPEN_ERROR = 202
} Idna_rc;
/* IDNA flags */
typedef enum
{
IDNA_ALLOW_UNASSIGNED = 0x0001,
IDNA_USE_STD3_ASCII_RULES = 0x0002
} Idna_flags;
# ifndef IDNA_ACE_PREFIX
# define IDNA_ACE_PREFIX "xn--"
# endif
extern IDNAPI const char *idna_strerror (Idna_rc rc);
/* Core functions */
extern IDNAPI int idna_to_ascii_4i (const uint32_t * in, size_t inlen,
char *out, int flags);
extern IDNAPI int idna_to_unicode_44i (const uint32_t * in, size_t inlen,
uint32_t * out, size_t * outlen,
int flags);
/* Wrappers that handle several labels */
extern IDNAPI int idna_to_ascii_4z (const uint32_t * input,
char **output, int flags);
extern IDNAPI int idna_to_ascii_8z (const char *input, char **output,
int flags);
extern IDNAPI int idna_to_ascii_lz (const char *input, char **output,
int flags);
extern IDNAPI int idna_to_unicode_4z4z (const uint32_t * input,
uint32_t ** output, int flags);
extern IDNAPI int idna_to_unicode_8z4z (const char *input,
uint32_t ** output, int flags);
extern IDNAPI int idna_to_unicode_8z8z (const char *input,
char **output, int flags);
extern IDNAPI int idna_to_unicode_8zlz (const char *input,
char **output, int flags);
extern IDNAPI int idna_to_unicode_lzlz (const char *input,
char **output, int flags);
# ifdef __cplusplus
}
# endif
#endif /* IDNA_H */