Function local_getline

src/database/cppsqlite3.cpp:1208–1248

** This routine reads a line of text from FILE in, stores ** the text in memory obtained from malloc() and returns a pointer ** to the text. NULL is returned at end of file, or if malloc() ** fails. ** ** The interface is like "readline" but no command-line editing ** is done. */

** is done.
*/
static char *local_getline(char *zPrompt, FILE *in){
	char *zLine;
	int nLine;
	int n;
	int eol;

	if( zPrompt && *zPrompt ){
		printf("%s",zPrompt);
		fflush(stdout);
	}
	nLine = 100;
	zLine = (char*)malloc( nLine );
	if( zLine==0 ) return 0;
	n = 0;
	eol = 0;
	while( !eol ){
		if( n+100>nLine ){
			nLine = nLine*2 + 100;
			zLine = (char*)realloc(zLine, nLine);
			if( zLine==0 ) return 0;
		}
		if( fgets(&zLine[n], nLine - n, in)==0 ){
			if( n==0 ){
				free(zLine);
				return 0;
			}
			zLine[n] = 0;
			eol = 1;
			break;
		}
		while( zLine[n] ){ n++; }
		if( n>0 && zLine[n-1]=='\n' ){
			n--;
			if( n>0 && zLine[n-1]=='\r' ) n--;
			zLine[n] = 0;
			eol = 1;
		}
	}
	zLine = (char*)realloc( zLine, n+1 );
	return zLine;
}
/*
** Retrieve a single line of input text.
**