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- renamed Sed::IOStream to Sed::Stream

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- renamed StdSed::StdStream to StdSed::FileStream
- added StdSed::StringStream
This commit is contained in:
hyung-hwan
2009-12-19 21:06:28 +00:00
parent de7082d0d0
commit 92cbbbcec1
6 changed files with 192 additions and 131 deletions
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2
qse/samples/sed/sed02.cpp
View File

@ -54,7 +54,7 @@ int sed_main (int argc, qse_char_t* argv[])
qse_char_t* infile = (argc >= 3)? argv[2]: QSE_NULL;
qse_char_t* outfile = (argc >= 4)? argv[3]: QSE_NULL;
QSE::StdSed::StdStream stream (infile, outfile);
QSE::StdSed::FileStream stream (infile, outfile);
if (sed.execute (stream) == -1)
{

110
qse/samples/sed/sed03.cpp
View File

@ -21,8 +21,6 @@
#include <qse/sed/StdSed.hpp>
#include <qse/cmn/main.h>
#include <qse/cmn/sio.h>
#include <string>
#include <iostream>
#ifdef QSE_CHAR_IS_MCHAR
@ -31,116 +29,12 @@
# define xcout std::wcout
#endif
//
// The StringStream class implements a data I/O stream over strings.
//
class StringStream: public QSE::StdSed::IOStream
{
public:
StringStream (const char_t* in) { this->in.ptr = in; }
int open (Data& io)
{
const char_t* ioname = io.getName ();
if (ioname == QSE_NULL)
{
// open a main data stream
if (io.getMode() == READ)
{
in.cur = in.ptr;
io.setHandle ((void*)in.ptr);
}
else
{
out.erase ();
io.setHandle (&out);
}
}
else
{
// open files for a r or w command
qse_sio_t* sio;
int mode = (io.getMode() == READ)?
QSE_SIO_READ:
(QSE_SIO_WRITE|QSE_SIO_CREATE|QSE_SIO_TRUNCATE);
sio = qse_sio_open (((QSE::Sed*)io)->getMmgr(), 0, ioname, mode);
if (sio == QSE_NULL) return -1;
io.setHandle (sio);
}
return 1;
}
int close (Data& io)
{
const void* handle = io.getHandle();
if (handle != in.ptr && handle != &out)
qse_sio_close ((qse_sio_t*)handle);
return 0;
}
ssize_t read (Data& io, char_t* buf, size_t len)
{
const void* handle = io.getHandle();
if (handle == in.ptr)
{
ssize_t n = qse_strxcpy (buf, len, in.cur);
in.cur += n; return n;
}
else
{
QSE_ASSERT (handle != &out);
return qse_sio_getsn ((qse_sio_t*)handle, buf, len);
}
}
ssize_t write (Data& io, const char_t* buf, size_t len)
{
const void* handle = io.getHandle();
if (handle == &out)
{
try
{
out.append (buf, len);
return len;
}
catch (...)
{
((QSE::Sed*)io)->setError (QSE_SED_ENOMEM);
throw;
}
}
else
{
QSE_ASSERT (handle != in.ptr);
return qse_sio_putsn ((qse_sio_t*)handle, buf, len);
}
}
const char_t* getInput () const { return in.ptr; }
const char_t* getOutput () const { return out.c_str (); }
protected:
struct
{
const char_t* ptr;
const char_t* cur;
} in;
std::basic_string<char_t> out;
};
//
// The MySed class simplifies QSE::StdSed by utilizing exception handling.
//
class MySed: protected QSE::StdSed
{
public:
class Error
{
public:
@ -159,7 +53,7 @@ public:
throw Error (getErrorMessage());
}
void execute (IOStream& stream)
void execute (Stream& stream)
{
if (QSE::StdSed::execute (stream) <= -1)
throw Error (getErrorMessage());
@ -174,7 +68,7 @@ int sed_main (int argc, qse_char_t* argv[])
sed.compile (QSE_T("y/ABC/abc/;s/abc/def/g"));
StringStream stream (QSE_T("ABCDEFabcdef"));
QSE::StdSed::StringStream stream (QSE_T("ABCDEFabcdef"));
sed.execute (stream);
xcout << QSE_T("INPUT: ") << stream.getInput() << std::endl;