Files
qse/qse/samples/awk/awk01.c
hyung-hwan 6b31c85427 - deleted unnecessary callback functions - on_loop_enter() & on_loop_exit()
- modified qse_awk_rtx_loop() and Awk::loop() to return the return value
- deprecated the callback totally from the Awk class: may readd it in the future.
- added POC code to pass arguments by reference for intrinsic functions. POC ok. more works needed for full support. not enabled.
2009-07-17 02:27:53 +00:00

91 lines
2.0 KiB
C

/*
* $Id: awk01.c 236 2009-07-16 08:27:53Z hyunghwan.chung $
*
Copyright 2006-2009 Chung, Hyung-Hwan.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include <qse/awk/awk.h>
#include <qse/awk/std.h>
#include <qse/cmn/stdio.h>
const qse_char_t* src = QSE_T(
"BEGIN {"
" for (i=2;i<=9;i++)"
" {"
" for (j=1;j<=9;j++)"
" print i \"*\" j \"=\" i * j;"
" print \"---------------------\";"
" }"
"}"
);
int main ()
{
qse_awk_t* awk = QSE_NULL;
qse_awk_rtx_t* rtx = QSE_NULL;
qse_awk_val_t* retv;
qse_awk_parsestd_in_t psin;
int ret;
awk = qse_awk_openstd (0);
if (awk == QSE_NULL)
{
qse_fprintf (QSE_STDERR, QSE_T("ERROR: cannot open awk\n"));
goto oops;
}
psin.type = QSE_AWK_PARSESTD_CP;
psin.u.cp = src;
ret = qse_awk_parsestd (awk, &psin, QSE_NULL);
if (ret <= -1)
{
qse_fprintf (QSE_STDERR, QSE_T("ERROR: %s\n"),
qse_awk_geterrmsg(awk));
ret = -1; goto oops;
}
rtx = qse_awk_rtx_openstd (
awk,
0,
QSE_T("awk01"),
QSE_NULL, /* stdin */
QSE_NULL /* stdout */
);
if (rtx == QSE_NULL)
{
qse_fprintf (QSE_STDERR, QSE_T("ERROR: %s\n"),
qse_awk_geterrmsg(awk));
ret = -1; goto oops;
}
retv = qse_awk_rtx_loop (rtx);
if (retv == QSE_NULL)
{
qse_fprintf (QSE_STDERR, QSE_T("ERROR: %s\n"),
qse_awk_rtx_geterrmsg(rtx));
ret = -1; goto oops;
}
qse_awk_rtx_refdownval (rtx, retv);
ret = 0;
oops:
if (rtx != QSE_NULL) qse_awk_rtx_close (rtx);
if (awk != QSE_NULL) qse_awk_close (awk);
return ret;
}