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libhttpserver/src/string_utilities.cpp at examples · MPursche/libhttpserver · GitHub
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string_utilities.cpp
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/*
This file is part of libhttpserver
Copyright (C) 2011 Sebastiano Merlino
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#
include
<
algorithm
>
#
include
<
string
>
#
include
<
istream
>
#
include
<
sstream
>
#
include
<
vector
>
#
include
<
cctype
>
#
include
<
cstdlib
>
#
include
<
cstring
>
#
include
<
regex.h
>
#
include
"
string_utilities.hpp
"
namespace
httpserver
{
namespace
string_utilities
{
void
to_upper_copy
(
const
std::string& str, std::string& result)
{
result = str;
std::transform
(result.
begin
(),
result.
end
(),
result.
begin
(),
(
int
(*)(
int
)) std::toupper
);
}
void
to_upper
(std::string& str)
{
std::transform
(str.
begin
(),
str.
end
(),
str.
begin
(),
(
int
(*)(
int
)) std::toupper
);
}
void
to_lower_copy
(
const
std::string& str, std::string& result)
{
result = str;
std::transform
(result.
begin
(),
result.
end
(),
result.
begin
(),
(
int
(*)(
int
)) std::tolower
);
}
size_t
string_split
(
const
std::string& s, std::vector<std::string>& result,
char
sep,
bool
collapse)
{
std::istringstream
buf
(s);
for
(std::string token;
getline
(buf, token, sep); )
{
if
((collapse && token !=
"
"
) || !collapse)
result.
push_back
(token);
}
return
result.
size
();
}
void
regex_replace
(
const
std::string& str,
const
std::string& pattern,
const
std::string& replace_str, std::string& result)
{
regex_t
preg;
regmatch_t
substmatch[
1
];
regcomp
(&preg, pattern.
c_str
(),
REG_EXTENDED
|
REG_ICASE
);
if
(
regexec
(&preg, str.
c_str
(),
1
, substmatch,
0
) ==
0
)
{
char
ns[substmatch[
0
].
rm_so
+
1
+ replace_str.
size
() + (str.
size
() - substmatch[
0
].
rm_eo
) +
2
];
memcpy
(ns, str.
c_str
(), substmatch[
0
].
rm_so
+
1
);
memcpy
(&ns[substmatch[
0
].
rm_so
], replace_str.
c_str
(), replace_str.
size
());
memcpy
(&ns[substmatch[
0
].
rm_so
+replace_str.
size
()], &str[substmatch[
0
].
rm_eo
],
strlen
(&str[substmatch[
0
].
rm_eo
]));
ns[ substmatch[
0
].
rm_so
+ replace_str.
size
() +
strlen
(&str[substmatch[
0
].
rm_eo
]) ] =
0
;
result =
std::string
((
char
*)ns);
}
regfree
(&preg);
}
};
};
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