Function process_input

src/database/cppsqlite3.cpp:1492–1583

** Read input from *in and process it. If *in==0 then input ** is interactive - the user is typing it it. Otherwise, input ** is coming from a file or device. A prompt is issued and history ** is saved only if input is interactive. An interrupt signal will ** cause this routine to exit immediately, unless input is interactive. ** ** Return the number of errors. */

** Return the number of errors.
*/
static int process_input(struct callback_data *p, FILE *in){
	char *zLine = 0;
	char *zSql = 0;
	int nSql = 0;
	int nSqlPrior = 0;
	char *zErrMsg;
	int rc;
	int errCnt = 0;
	int lineno = 0;
	int startline = 0;

	while( errCnt==0 || !bail_on_error || (in==0 && stdin_is_interactive) ){
		//fflush(p->out);
		free(zLine);
		zLine = one_input_line(in);
		if( zLine==0 ){
			break;  /* We have reached EOF */
		}
		if( seenInterrupt ){
			if( in!=0 ) break;
			seenInterrupt = 0;
		}
		lineno++;
		if( (zSql==0 || zSql[0]==0) && _all_whitespace(zLine) ) continue;
		if( zLine && zLine[0]=='.' && nSql==0 ){
			continue;
		}
		if( _is_command_terminator(zLine) && _is_complete(zSql, nSql) ){
			memcpy(zLine,";",2);
		}
		nSqlPrior = nSql;
		if( zSql==0 ){
			int i;
			for(i=0; zLine[i] && isspace((unsigned char)zLine[i]); i++){}
			if( zLine[i]!=0 ){
				nSql = strlen30(zLine);
				zSql = (char*)malloc( nSql+3 );
				if( zSql==0 ){
					fprintf(stderr, "Error: out of memory\n");
					exit(1);
				}
				memcpy(zSql, zLine, nSql+1);
				startline = lineno;
			}
		}else{
			int len = strlen30(zLine);
			zSql = (char*)realloc( zSql, nSql + len + 4 );
			if( zSql==0 ){
				fprintf(stderr,"Error: out of memory\n");
				exit(1);
			}
			zSql[nSql++] = '\n';
			memcpy(&zSql[nSql], zLine, len+1);
			nSql += len;
		}
		if( zSql && _contains_semicolon(&zSql[nSqlPrior], nSql-nSqlPrior)
			&& sqlite3_complete(zSql) ){
				p->cnt = 0;