https://sourceforge.net/projects/miyolinux/
https://stackoverflow.com/questions/37122401/execute-another-go-program-from-within-a-golang-program
https://zetcode.com/golang/exec-command/
https://gist.github.com/hyg/9c4afcd91fe24316cbf0
https://www.instructables.com/Complete-Guide-for-Tech-Beginners/
Working on Golang:
package main
import (
"fmt"
"log"
"os/exec"
"runtime"
)
func openbrowser(url string) {
var err error
switch runtime.GOOS {
case "linux":
err = exec.Command("xdg-open", url).Start()
case "windows":
err = exec.Command("rundll32", "url.dll,FileProtocolHandler", url).Start()
case "darwin":
err = exec.Command("open", url).Start()
default:
err = fmt.Errorf("unsupported platform")
}
if err != nil {
log.Fatal(err)
}
}
func main() {
openbrowser("d:/go/dokument.htm")
}
Working on TCC:
#include <stdio.h>
#include <wchar.h>
#include <stdlib.h>
#include <locale.h>
int main ()
{
setlocale(LC_ALL, "en_US.UTF-8");
FILE * fin;
FILE * fout;
wint_t wc;
fin=fopen ("in.txt","r");
fout=fopen("out.txt","w");
while((wc=fgetwc(fin))!=WEOF){
// work with: "wc"
putchar(wc);
fprintf(fout,"%c",wc);
}
fclose(fin);
fclose(fout);
printf("File has been created...\n");
return 0;
}
https://www.calculate-linux.org/
??:
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <wchar.h>
int main(void)
{
FILE *stream;
wchar_t wcs[100];
if (NULL == (stream = fopen("fgetws.dat", "r"))) {
printf("Unable to open: \"fgetws.dat\"\n");
exit(1);
}
errno = 0;
if (NULL == fgetws(wcs, 100, stream)) {
if (EILSEQ == errno) {
printf("An invalid wide character was encountered.\n");
exit(1);
}
else if (feof(stream))
printf("End of file reached.\n");
else
perror("Read error.\n");
}
printf("wcs = \"%ls\"\n", wcs);
fclose(stream);
return 0;
/************************************************************
Assuming the file fgetws.dat contains:
This test string should not return -1
The output should be similar to:
wcs = "This test string should not return -1"
************************************************************/
}
int sqlite3_exec16(
sqlite3 *db, /* The database on which the SQL executes */
const short *zSql, /* The SQL(16) to be executed */
sqlite3_callback16 xCallback, /* Invoke this callback routine */
void *pArg, /* First argument to xCallback() */
short **pzErrMsg /* Write error messages here */
){
int rc = SQLITE_OK;
const short *zLeftover;
sqlite3_stmt *pStmt = 0;
short **azCols = 0;
int nRetry = 0;
int nCallback;
if( zSql==0 ) return SQLITE_OK;
while( (rc==SQLITE_OK || (rc==SQLITE_SCHEMA && (++nRetry)<2)) && zSql[0]
){
int nCol;
short **azVals = 0;
pStmt = 0;
rc = sqlite3_prepare16_v2(db, zSql, -1, &pStmt, &zLeftover);
assert( rc==SQLITE_OK || pStmt==0 );
if( rc!=SQLITE_OK ){
continue;
}
if( !pStmt ){
/* this happens for a comment or white-space */
zSql = zLeftover;
continue;
}
nCallback = 0;
nCol = sqlite3_column_count(pStmt);
azCols = sqliteMalloc(2*nCol*sizeof(const short *) + 1);
if( azCols==0 ){
goto exec_out;
}
while( 1 ){
int i;
rc = sqlite3_step(pStmt);
/* Invoke the callback function if required */
if( xCallback && (SQLITE_ROW==rc ||
(SQLITE_DONE==rc && !nCallback && db->flags&SQLITE_NullCallback))
){
if( 0==nCallback ){
for(i=0; i<nCol; i++){
azCols[i] = (short *)sqlite3_column_name16(pStmt, i);
}
nCallback++;
}
if( rc==SQLITE_ROW ){
azVals = &azCols[nCol];
for(i=0; i<nCol; i++){
azVals[i] = (short *)sqlite3_column_text16(pStmt, i);
}
}
if( xCallback(pArg, nCol, azVals, azCols) ){
rc = SQLITE_ABORT;
goto exec_out;
}
}
if( rc!=SQLITE_ROW ){
rc = sqlite3_finalize(pStmt);
pStmt = 0;
if( rc!=SQLITE_SCHEMA ){
nRetry = 0;
zSql = zLeftover;
while( iswspace((unsigned char)zSql[0]) ) zSql++;
}
break;
}
}
sqliteFree(azCols);
azCols = 0;
}
exec_out:
if( pStmt ) sqlite3_finalize(pStmt);
if( azCols ) sqliteFree(azCols);
rc = sqlite3ApiExit(0, rc);
if( rc!=SQLITE_OK && rc==sqlite3_errcode(db) && pzErrMsg ){
*pzErrMsg = sqlite3_malloc(1+strlen(sqlite3_errmsg16(db)));
if( *pzErrMsg ){
strcpy(*pzErrMsg, sqlite3_errmsg16(db));
}
}else if( pzErrMsg ){
*pzErrMsg = 0;
}
assert( (rc&db->errMask)==rc );
return rc;
}
sqlite3 *db, /* The database on which the SQL executes */
const short *zSql, /* The SQL(16) to be executed */
sqlite3_callback16 xCallback, /* Invoke this callback routine */
void *pArg, /* First argument to xCallback() */
short **pzErrMsg /* Write error messages here */
){
int rc = SQLITE_OK;
const short *zLeftover;
sqlite3_stmt *pStmt = 0;
short **azCols = 0;
int nRetry = 0;
int nCallback;
if( zSql==0 ) return SQLITE_OK;
while( (rc==SQLITE_OK || (rc==SQLITE_SCHEMA && (++nRetry)<2)) && zSql[0]
){
int nCol;
short **azVals = 0;
pStmt = 0;
rc = sqlite3_prepare16_v2(db, zSql, -1, &pStmt, &zLeftover);
assert( rc==SQLITE_OK || pStmt==0 );
if( rc!=SQLITE_OK ){
continue;
}
if( !pStmt ){
/* this happens for a comment or white-space */
zSql = zLeftover;
continue;
}
nCallback = 0;
nCol = sqlite3_column_count(pStmt);
azCols = sqliteMalloc(2*nCol*sizeof(const short *) + 1);
if( azCols==0 ){
goto exec_out;
}
while( 1 ){
int i;
rc = sqlite3_step(pStmt);
/* Invoke the callback function if required */
if( xCallback && (SQLITE_ROW==rc ||
(SQLITE_DONE==rc && !nCallback && db->flags&SQLITE_NullCallback))
){
if( 0==nCallback ){
for(i=0; i<nCol; i++){
azCols[i] = (short *)sqlite3_column_name16(pStmt, i);
}
nCallback++;
}
if( rc==SQLITE_ROW ){
azVals = &azCols[nCol];
for(i=0; i<nCol; i++){
azVals[i] = (short *)sqlite3_column_text16(pStmt, i);
}
}
if( xCallback(pArg, nCol, azVals, azCols) ){
rc = SQLITE_ABORT;
goto exec_out;
}
}
if( rc!=SQLITE_ROW ){
rc = sqlite3_finalize(pStmt);
pStmt = 0;
if( rc!=SQLITE_SCHEMA ){
nRetry = 0;
zSql = zLeftover;
while( iswspace((unsigned char)zSql[0]) ) zSql++;
}
break;
}
}
sqliteFree(azCols);
azCols = 0;
}
exec_out:
if( pStmt ) sqlite3_finalize(pStmt);
if( azCols ) sqliteFree(azCols);
rc = sqlite3ApiExit(0, rc);
if( rc!=SQLITE_OK && rc==sqlite3_errcode(db) && pzErrMsg ){
*pzErrMsg = sqlite3_malloc(1+strlen(sqlite3_errmsg16(db)));
if( *pzErrMsg ){
strcpy(*pzErrMsg, sqlite3_errmsg16(db));
}
}else if( pzErrMsg ){
*pzErrMsg = 0;
}
assert( (rc&db->errMask)==rc );
return rc;
}
