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/**************************************************************************
* This program is Copyright (C) 1986-2002 by Jonathan Payne. JOVE is *
* provided by Jonathan and Jovehacks without charge and without *
* warranty. You may copy, modify, and/or distribute JOVE, provided that *
* this notice is included in all the source files and documentation. *
**************************************************************************/
#include "jove.h"
#include "jctype.h"
#include "disp.h"
#include "ask.h"
#include "c.h"
#include "delete.h"
#include "insert.h"
#include "extend.h"
#include "fmt.h"
#include "marks.h"
#include "misc.h"
#include "move.h"
#include "paragraph.h"
void
prCTIME()
{
f_mess(": %f %s", get_time((time_t *)NULL, (char *)NULL, 0, -1));
stickymsg = YES;
}
void
ChrToOct()
{
ZXchar c = ask_ks();
ins_str(sprint("\\%03o", c));
#ifdef PCNONASCII
if (c == PCNONASCII) {
c = waitchar();
ins_str(sprint("\\%03o", c));
}
#endif
}
void
StrLength()
{
static const char inquotes[] = "Where are the quotes?";
char *cp;
int numchars = 0;
for (cp = linebuf+curchar; ; cp--) {
if (*cp == '"' && (cp == linebuf || cp[-1] != '\\'))
break;
if (cp == linebuf)
complain(inquotes);
}
cp += 1; /* skip opening quote */
for (;;) {
switch (*cp++) {
case '\0':
complain(inquotes);
/*NOTREACHED*/
case '"':
f_mess("%d characters", numchars);
stickymsg = YES;
return;
case '\\':
if (!jisdigit(*cp)) {
if (*cp == '\0')
complain(inquotes);
cp += 1;
} else {
int num = 3;
do cp += 1; while (--num != 0 && jisdigit(*cp));
}
break;
}
numchars += 1;
}
}
/* Transpose cur_char with cur_char - 1 */
void
TransChar()
{
char before;
if (curchar == 0 || (eolp() && curchar == 1))
complain((char *)NULL); /* BEEP */
if (eolp())
b_char(1);
before = linebuf[curchar - 1];
del_char(BACKWARD, 1, NO);
f_char(1);
insert_c(before, 1);
}
/* Switch current line with previous one */
void
TransLines()
{
daddr old_prev;
if (firstp(curline))
return;
lsave();
/* Exchange l_dline values.
* CHEAT: this breaks the buffer abstraction.
* The getDOT unfools a few caching mechanisms.
*/
old_prev = curline->l_prev->l_dline;
curline->l_prev->l_dline = curline->l_dline;
curline->l_dline = old_prev;
getDOT();
if (!lastp(curline))
line_move(FORWARD, 1, NO);
else
Eol(); /* can't move to next line, so we do the next best thing */
modify();
DOLsave = NO; /* CHEAT: contents of linebuf need not override l_dline. */
}
/* exit-jove command */
void
Leave()
{
longjmp(mainjmp, JMP_QUIT);
}
/* If argument is specified, kill that many lines down. Otherwise,
* if we "appear" to be at the end of a line, i.e. everything to the
* right of the cursor is white space, we delete the line separator
* as if we were at the end of the line.
*/
void
KillEOL()
{
LinePtr line2;
int char2;
int num = arg_value();
if (is_an_arg()) {
if (num == 0) { /* Kill to beginning of line */
line2 = curline;
char2 = 0;
} else {
line2 = next_line(curline, num);
if ((LineDist(curline, line2) < num) || (line2 == curline))
char2 = length(line2);
else
char2 = 0;
}
} else if (blnkp(&linebuf[curchar])) {
line2 = next_line(curline, 1);
if (line2 == curline)
char2 = length(curline);
else
char2 = 0;
} else {
line2 = curline;
char2 = length(curline);
}
reg_kill(line2, char2, NO);
}
/* kill to beginning of sentence */
void
KillBos()
{
negate_arg();
KillEos();
}
/* Kill to end of sentence */
void
KillEos()
{
LinePtr line1;
int char1;
line1 = curline;
char1 = curchar;
Eos();
reg_kill(line1, char1, YES);
}
void
KillExpr()
{
LinePtr line1;
int char1;
line1 = curline;
char1 = curchar;
FSexpr();
reg_kill(line1, char1, YES);
}
void
Yank()
{
LinePtr line,
lp;
Bufpos *dot;
if (killbuf[killptr] == NULL)
complain("[Nothing to yank!]");
lsave();
line = killbuf[killptr];
lp = lastline(line);
dot = DoYank(line, 0, lp, length(lp), curline, curchar, curbuf);
set_mark();
SetDot(dot);
}
void
ToIndent()
{
Bol();
skip_wht_space();
}
void
skip_wht_space()
{
register char *cp = linebuf + curchar;
while (jiswhite(*cp))
cp += 1;
curchar = cp - linebuf;
}
/* GoLine -- go to a line, usually wired to goto-line, ESC g or ESC G.
* If no argument is specified it asks for a line number.
*/
void
GoLine()
{
LinePtr newline;
if (!is_an_arg())
set_arg_value(ask_int("1", "Line: ", 10));
if (arg_value() < 0)
newline = prev_line(curbuf->b_last, -1 - arg_value());
else
newline = next_line(curbuf->b_first, arg_value() - 1);
PushPntp(newline);
SetLine(newline);
}
void
NotModified()
{
unmodify();
}
void
SetLMargin()
{
int lmarg = calc_pos(linebuf, curchar);
if (lmarg >= RMargin)
complain("[Left margin must be left of right margin]");
LMargin = lmarg;
}
void
SetRMargin()
{
int rmarg = calc_pos(linebuf, curchar);
if (rmarg <= LMargin)
complain("[Right margin must be right of left margin]");
RMargin = rmarg;
}
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