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From jperkin : Merge libedit 2.11 and related files,

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based on NetBSD CVS as of 2009/02/06 20:09:00.
This commit is contained in:
Georgi Kodinov
2009-02-10 14:39:14 +02:00
parent 67bd15a554
commit 773b18e69a
56 changed files with 2273 additions and 3923 deletions
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76
cmd-line-utils/libedit/refresh.c
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@ -1,4 +1,4 @@
/* $NetBSD: refresh.c,v 1.26 2003/08/07 16:44:33 agc Exp $ */
/* $NetBSD: refresh.c,v 1.28 2008/09/10 15:45:37 christos Exp $ */
/*-
* Copyright (c) 1992, 1993
@ -32,7 +32,13 @@
* SUCH DAMAGE.
*/
#include <config.h>
#include "config.h"
#if !defined(lint) && !defined(SCCSID)
#if 0
static char sccsid[] = "@(#)refresh.c 8.1 (Berkeley) 6/4/93";
#else
#endif
#endif /* not lint && not SCCSID */
/*
* refresh.c: Lower level screen refreshing functions
@ -49,6 +55,7 @@ private void re_update_line(EditLine *, char *, char *, int);
private void re_insert (EditLine *, char *, int, int, char *, int);
private void re_delete(EditLine *, char *, int, int, int);
private void re_fastputc(EditLine *, int);
private void re_clear_eol(EditLine *, int, int, int);
private void re__strncopy(char *, char *, size_t);
private void re__copy_and_pad(char *, const char *, size_t);
@ -315,9 +322,9 @@ re_goto_bottom(EditLine *el)
{
term_move_to_line(el, el->el_refresh.r_oldcv);
term__putc('\n');
term__putc(el, '\n');
re_clear_display(el);
term__flush();
term__flush(el);
}
@ -340,7 +347,7 @@ re_insert(EditLine *el __attribute__((__unused__)),
ELRE_DEBUG(1,
(__F, "re_insert() starting: %d at %d max %d, d == \"%s\"\n",
num, dat, dlen, d));
ELRE_DEBUG(1, (__F, "s == \"%s\"n", s));
ELRE_DEBUG(1, (__F, "s == \"%s\"\n", s));
/* open up the space for num chars */
if (num > 0) {
@ -353,7 +360,7 @@ re_insert(EditLine *el __attribute__((__unused__)),
ELRE_DEBUG(1, (__F,
"re_insert() after insert: %d at %d max %d, d == \"%s\"\n",
num, dat, dlen, d));
ELRE_DEBUG(1, (__F, "s == \"%s\"n", s));
ELRE_DEBUG(1, (__F, "s == \"%s\"\n", s));
/* copy the characters */
for (a = d + dat; (a < d + dlen) && (num > 0); num--)
@ -362,7 +369,7 @@ re_insert(EditLine *el __attribute__((__unused__)),
ELRE_DEBUG(1,
(__F, "re_insert() after copy: %d at %d max %d, %s == \"%s\"\n",
num, dat, dlen, d, s));
ELRE_DEBUG(1, (__F, "s == \"%s\"n", s));
ELRE_DEBUG(1, (__F, "s == \"%s\"\n", s));
}
@ -411,6 +418,32 @@ re__strncopy(char *a, char *b, size_t n)
*a++ = *b++;
}
/* re_clear_eol():
* Find the number of characters we need to clear till the end of line
* in order to make sure that we have cleared the previous contents of
* the line. fx and sx is the number of characters inserted or deleted
* int the first or second diff, diff is the difference between the
* number of characters between the new and old line.
*/
private void
re_clear_eol(EditLine *el, int fx, int sx, int diff)
{
ELRE_DEBUG(1, (__F, "re_clear_eol sx %d, fx %d, diff %d\n",
sx, fx, diff));
if (fx < 0)
fx = -fx;
if (sx < 0)
sx = -sx;
if (fx > diff)
diff = fx;
if (sx > diff)
diff = sx;
ELRE_DEBUG(1, (__F, "re_clear_eol %d\n", diff));
term_clear_EOL(el, diff);
}
/*****************************************************************
re_update_line() is based on finding the middle difference of each line
@ -626,7 +659,7 @@ re_update_line(EditLine *el, char *old, char *new, int i)
fx = (nsb - nfd) - (osb - ofd);
sx = (nls - nse) - (ols - ose);
ELRE_DEBUG(1, (__F, "\n"));
ELRE_DEBUG(1, (__F, "fx %d, sx %d\n", fx, sx));
ELRE_DEBUG(1, (__F, "ofd %d, osb %d, ose %d, ols %d, oe %d\n",
ofd - old, osb - old, ose - old, ols - old, oe - old));
ELRE_DEBUG(1, (__F, "nfd %d, nsb %d, nse %d, nls %d, ne %d\n",
@ -775,9 +808,7 @@ re_update_line(EditLine *el, char *old, char *new, int i)
* write (nsb-nfd) chars of new starting at nfd
*/
term_overwrite(el, nfd, (nsb - nfd));
ELRE_DEBUG(1, (__F,
"cleareol %d\n", (oe - old) - (ne - new)));
term_clear_EOL(el, (oe - old) - (ne - new));
re_clear_eol(el, fx, sx, (oe - old) - (ne - new));
/*
* Done
*/
@ -818,10 +849,7 @@ re_update_line(EditLine *el, char *old, char *new, int i)
ELRE_DEBUG(1, (__F,
"but with nothing left to save\r\n"));
term_overwrite(el, nse, (nls - nse));
ELRE_DEBUG(1, (__F,
"cleareol %d\n", (oe - old) - (ne - new)));
if ((oe - old) - (ne - new) != 0)
term_clear_EOL(el, (oe - old) - (ne - new));
re_clear_eol(el, fx, sx, (oe - old) - (ne - new));
}
}
/*
@ -982,7 +1010,7 @@ re_refresh_cursor(EditLine *el)
/* now go there */
term_move_to_line(el, v);
term_move_to_char(el, h);
term__flush();
term__flush(el);
}
@ -993,7 +1021,7 @@ private void
re_fastputc(EditLine *el, int c)
{
term__putc(c);
term__putc(el, c);
el->el_display[el->el_cursor.v][el->el_cursor.h++] = c;
if (el->el_cursor.h >= el->el_term.t_size.h) {
/* if we must overflow */
@ -1020,12 +1048,12 @@ re_fastputc(EditLine *el, int c)
}
if (EL_HAS_AUTO_MARGINS) {
if (EL_HAS_MAGIC_MARGINS) {
term__putc(' ');
term__putc('\b');
term__putc(el, ' ');
term__putc(el, '\b');
}
} else {
term__putc('\r');
term__putc('\n');
term__putc(el, '\r');
term__putc(el, '\n');
}
}
}
@ -1065,7 +1093,7 @@ re_fastaddc(EditLine *el)
re_fastputc(el, (int)(((((unsigned int)c) >> 3) & 7) + '0'));
re_fastputc(el, (c & 7) + '0');
}
term__flush();
term__flush(el);
}
@ -1104,7 +1132,7 @@ re_clear_lines(EditLine *el)
} else {
term_move_to_line(el, el->el_refresh.r_oldcv);
/* go to last line */
term__putc('\r'); /* go to BOL */
term__putc('\n'); /* go to new line */
term__putc(el, '\r'); /* go to BOL */
term__putc(el, '\n'); /* go to new line */
}
}