qse/samples/awk/awk24.cpp

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/*
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* $Id$
*
Copyright (c) 2006-2019 Chung, Hyung-Hwan. All rights reserved.
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Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <qse/awk/StdAwk.hpp>
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#include <qse/si/sio.h>
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#include <qse/cmn/main.h>
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#include <qse/cmn/mbwc.h>
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#include <locale.h>
#if defined(_WIN32)
# include <windows.h>
#endif
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static void print_error (
const QSE::StdAwk::loc_t& loc, const QSE::StdAwk::char_t* msg)
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{
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if (loc.line > 0 || loc.colm > 0)
qse_fprintf (QSE_STDERR, QSE_T("ERROR: %s at LINE %lu COLUMN %lu\n"), msg, loc.line, loc.colm);
else
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qse_fprintf (QSE_STDERR, QSE_T("ERROR: %s\n"), msg);
}
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static int run_awk (QSE::StdAwk& awk)
{
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QSE::StdAwk::Run* run;
QSE::StdAwk::SourceString in (QSE_T(
"function pa (x) {\n"
" @reset ret;\n"
" for (i in x) { print i, \"=>\", x[i]; ret += x[i]; }\n"
" return ret + FOO++;\n"
"}\n"
"function pb (x) {\n"
" @reset ret;\n"
" for (i in x) { ret[-i] = -x[i]; }\n"
" return ret;\n"
"}"
));
// add a global variable 'FOO'
int foo = awk.addGlobal (QSE_T("FOO"));
if (foo <= -1) return -1;
// parse the script and perform no deparsing
run = awk.parse (in, QSE::StdAwk::Source::NONE);
if (run == QSE_NULL) return -1;
// set 'FOO' to 100000
QSE::StdAwk::Value foov (run);
if (foov.setInt (100000) <= -1) return -1;
if (awk.setGlobal (foo, foov) <= -1) return -1;
// prepare an indexed parameter
QSE::StdAwk::Value arg[1];
for (int i = 1; i <= 5; i++)
{
if (arg[0].setIndexedInt (run,
QSE::StdAwk::Value::IntIndex(i), i*20) <= -1) return -1;
}
if (arg[0].setIndexedStr (run,
QSE::StdAwk::Value::IntIndex(99), QSE_T("-2345")) <= -1) return -1;
QSE::StdAwk::Value dummy;
if (dummy.setStr (run, QSE_T("4567")) <= -1) return -1;
if (arg[0].setIndexedVal (run,
QSE::StdAwk::Value::IntIndex(999), dummy) <= -1) return -1;
// prepare a variable to hold the return value
QSE::StdAwk::Value r;
// call the 'pa' function
if (awk.call (QSE_T("pa"), &r, arg, 1) <= -1) return -1;
// output the result in various types
qse_printf (QSE_T("RESULT: (int) [%lld]\n"), (long long)r.toInt());
qse_printf (QSE_T(" (flt)[%Lf]\n"), (long double)r.toFlt());
qse_printf (QSE_T(" (str) [%js]\n"), r.toStr(QSE_NULL));
qse_printf (QSE_T(" (mbs) [%hs]\n"), r.toMbs(QSE_NULL));
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// get the value of 'FOO'
if (awk.getGlobal (foo, foov) <= -1) return -1;
qse_printf (QSE_T("FOO: (int) [%lld]\n"), (long long)foov.toInt());
qse_printf (QSE_T(" (flt)[%Lf]\n"), (long double)foov.toFlt());
qse_printf (QSE_T(" (str) [%js]\n"), foov.toStr(QSE_NULL));
qse_printf (QSE_T(" (mbs) [%hs]\n"), foov.toMbs(QSE_NULL));
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// call the 'pb' function
if (awk.call (QSE_T("pb"), &r, arg, QSE_COUNTOF(arg)) <= -1) return -1;
// output the returned map.
QSE_ASSERT (r.isIndexed());
QSE::StdAwk::Value::IndexIterator iter;
QSE::StdAwk::Value::Index idx;
QSE::StdAwk::Value v;
qse_printf (QSE_T("RESULT:\n"));
iter = r.getFirstIndex (&idx);
while (iter != QSE::StdAwk::Value::IndexIterator::END)
{
if (r.getIndexed (idx, &v) <= -1) return -1;
qse_printf (QSE_T("\t[%.*s]=>[%lld]\n"),
(int)idx.length(), idx.pointer(),
(long long)v.toInt()
);
iter = r.getNextIndex (&idx, iter);
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}
return 0;
}
static int awk_main (int argc, qse_char_t* argv[])
{
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QSE::StdAwk awk;
int ret = awk.open();
// allow returning a map from a function
awk.setTrait (awk.getTrait() | QSE_AWK_FLEXMAP);
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if (ret >= 0) ret = run_awk (awk);
if (ret <= -1)
{
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QSE::StdAwk::loc_t loc = awk.getErrorLocation();
print_error (loc, awk.getErrorMessage());
}
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awk.close ();
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return -1;
}
int qse_main (int argc, qse_achar_t* argv[])
{
int x;
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qse_open_stdsios ();
{
#if defined(_WIN32)
char locale[100];
UINT codepage = GetConsoleOutputCP();
if (codepage == CP_UTF8)
{
/*SetConsoleOUtputCP (CP_UTF8);*/
qse_setdflcmgrbyid (QSE_CMGR_UTF8);
}
else
{
sprintf (locale, ".%u", (unsigned int)codepage);
setlocale (LC_ALL, locale);
/*qse_setdflcmgrbyid (QSE_CMGR_SLMB);*/
}
#else
setlocale (LC_ALL, "");
/*qse_setdflcmgrbyid (QSE_CMGR_SLMB);*/
#endif
}
x = qse_run_main (argc,argv,awk_main);
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qse_close_stdsios ();
return x;
}