コード例 #1
0
ファイル: rosh.c プロジェクト: Acidburn0zzz/syslinux-mac
/* Page through a buffer string
 *	buf	Buffer to page through
 */
void rosh_more_buf(char *buf, int buflen, int rows, int cols, char *scrbuf)
{
    char *bufp, *bufeol, *bufeol2;	/* Pointer to current and next
					   end-of-line position in buffer */
    int bufpos, bufcnt;		/* current position, count characters */
    int inc;
    int i, numln;		/* Index, Number of lines */
    int elpl;		/* Extra lines per line read */

    (void)cols;

    bufpos = 0;
    bufp = buf + bufpos;
    bufeol = bufp;
    numln = rows - 1;
    ROSH_DEBUG("--(%d)\n", buflen);
    while (bufpos < buflen) {
	for (i = 0; i < numln; i++) {
	    bufeol2 = strchr(bufeol, '\n');
	    if (bufeol2 == NULL) {
		bufeol = buf + buflen;
		i = numln;
	    } else {
		elpl = ((bufeol2 - bufeol - 1) / cols);
		if (elpl < 0)
		    elpl = 0;
		i += elpl;
		ROSH_DEBUG2("  %d/%d  ", elpl, i+1);
		/* If this will not push too much, use it */
		/* but if it's the first line, use it */
		/* //HERE: We should probably snip the line off */
		if ((i < numln) || (i == elpl))
		    bufeol = bufeol2 + 1;
	    }
	}
	ROSH_DEBUG2("\n");
	bufcnt = bufeol - bufp;
	printf("--(%d/%d @%d)\n", bufcnt, buflen, bufpos);
	memcpy(scrbuf, bufp, bufcnt);
	scrbuf[bufcnt] = 0;
	printf("%s", scrbuf);
	bufp = bufeol;
	bufpos += bufcnt;
	if (bufpos == buflen)
	    break;
	inc = rosh_getkey();
	numln = 1;
	switch (inc) {
	case KEY_CTRL('c'):
	case 'q':
	case 'Q':
	    bufpos = buflen;
	    break;
	case ' ':
	    numln = rows - 1;
	}
    }
}				/* rosh_more_buf */
コード例 #2
0
ファイル: rosh.c プロジェクト: alexonixon/docker-pxe
//HERE: minor pagination issue; sometimes prints 1 less than rows
void rosh_more_buf(char *buf, int buflen, int rows, int cols)
{
    char *bufp, *bufeol, *bufeol2;	/* Pointer to current and next
					   end-of-line position in buffer */
    int bufpos, bufcnt;		/* current position, count characters */
    char scrbuf[ROSH_SBUF_SZ];
    int inc;
    int i, numln;		/* Index, Number of lines */

    (void)cols;

    bufpos = 0;
    bufp = buf + bufpos;
    bufeol = bufp;
    numln = rows - 1;
    ROSH_DEBUG("--(%d)\n", buflen);
    while (bufpos < buflen) {
	for (i = 0; i < numln; i++) {
	    bufeol2 = strchr(bufeol, '\n');
	    if (bufeol2 == NULL) {
		bufeol = buf + buflen;
		i = numln;
	    } else {
		i += ((bufeol2 - bufeol) / cols);
		bufeol = bufeol2 + 1;
	    }
	}
	bufcnt = bufeol - bufp;
	printf("--(%d/%d @%d)\n", bufcnt, buflen, bufpos);
	memcpy(scrbuf, bufp, bufcnt);
	scrbuf[bufcnt] = 0;
	printf("%s", scrbuf);
	bufp = bufeol;
	bufpos += bufcnt;
	if (bufpos == buflen)
	    break;
	inc = rosh_getkey();
	numln = 1;
	switch (inc) {
	case KEY_CTRL('c'):
	case 'q':
	case 'Q':
	    bufpos = buflen;
	    break;
	case ' ':
	    numln = rows - 1;
	}
    }
}				/* rosh_more_buf */