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/* $OpenBSD: modes.c,v 1.21 2017/05/30 07:05:22 florian Exp $ */
/* This file is in the public domain. */
/*
* Commands to toggle modes. Without an argument, these functions will
* toggle the given mode. A negative or zero argument will turn the mode
* off. A positive argument will turn the mode on.
*/
#include <sys/queue.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include "def.h"
#include "kbd.h"
int changemode(int, int, char *);
int defb_nmodes = 0;
struct maps_s *defb_modes[PBMODES] = { &fundamental_mode };
int defb_flag = 0;
int
changemode(int f, int n, char *newmode)
{
int i;
struct maps_s *m;
if ((m = name_mode(newmode)) == NULL) {
dobeep();
ewprintf("Can't find mode %s", newmode);
return (FALSE);
}
if (!(f & FFARG)) {
for (i = 0; i <= curbp->b_nmodes; i++)
if (curbp->b_modes[i] == m) {
/* mode already set */
n = 0;
break;
}
}
if (n > 0) {
for (i = 0; i <= curbp->b_nmodes; i++)
if (curbp->b_modes[i] == m)
/* mode already set */
return (TRUE);
if (curbp->b_nmodes >= PBMODES - 1) {
dobeep();
ewprintf("Too many modes");
return (FALSE);
}
curbp->b_modes[++(curbp->b_nmodes)] = m;
} else {
/* fundamental is b_modes[0] and can't be unset */
for (i = 1; i <= curbp->b_nmodes && m != curbp->b_modes[i];
i++);
if (i > curbp->b_nmodes)
return (TRUE); /* mode wasn't set */
for (; i < curbp->b_nmodes; i++)
curbp->b_modes[i] = curbp->b_modes[i + 1];
curbp->b_nmodes--;
}
upmodes(curbp);
return (TRUE);
}
int
indentmode(int f, int n)
{
return (changemode(f, n, "indent"));
}
int
fillmode(int f, int n)
{
return (changemode(f, n, "fill"));
}
#ifdef NOTAB
int
notabmode(int f, int n)
{
if (changemode(f, n, "notab") == FALSE)
return (FALSE);
if (f & FFARG) {
if (n <= 0)
curbp->b_flag &= ~BFNOTAB;
else
curbp->b_flag |= BFNOTAB;
} else
curbp->b_flag ^= BFNOTAB;
return (TRUE);
}
#endif /* NOTAB */
int
overwrite_mode(int f, int n)
{
if (changemode(f, n, "overwrite") == FALSE)
return (FALSE);
if (f & FFARG) {
if (n <= 0)
curbp->b_flag &= ~BFOVERWRITE;
else
curbp->b_flag |= BFOVERWRITE;
} else
curbp->b_flag ^= BFOVERWRITE;
return (TRUE);
}
int
set_default_mode(int f, int n)
{
int i;
struct maps_s *m;
char modebuf[32], *bufp;
if ((bufp = eread("Set Default Mode: ", modebuf, sizeof(modebuf),
EFNEW)) == NULL)
return (ABORT);
else if (bufp[0] == '\0')
return (FALSE);
if ((m = name_mode(modebuf)) == NULL) {
dobeep();
ewprintf("can't find mode %s", modebuf);
return (FALSE);
}
if (!(f & FFARG)) {
for (i = 0; i <= defb_nmodes; i++)
if (defb_modes[i] == m) {
/* mode already set */
n = 0;
break;
}
}
if (n > 0) {
for (i = 0; i <= defb_nmodes; i++)
if (defb_modes[i] == m)
/* mode already set */
return (TRUE);
if (defb_nmodes >= PBMODES - 1) {
dobeep();
ewprintf("Too many modes");
return (FALSE);
}
defb_modes[++defb_nmodes] = m;
} else {
/* fundamental is defb_modes[0] and can't be unset */
for (i = 1; i <= defb_nmodes && m != defb_modes[i]; i++);
if (i > defb_nmodes)
/* mode was not set */
return (TRUE);
for (; i < defb_nmodes; i++)
defb_modes[i] = defb_modes[i + 1];
defb_nmodes--;
}
if (strcmp(modebuf, "overwrite") == 0) {
if (n <= 0)
defb_flag &= ~BFOVERWRITE;
else
defb_flag |= BFOVERWRITE;
}
#ifdef NOTAB
if (strcmp(modebuf, "notab") == 0) {
if (n <= 0)
defb_flag &= ~BFNOTAB;
else
defb_flag |= BFNOTAB;
}
#endif /* NOTAB */
return (TRUE);
}
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