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decomp_dbg: fix left/right arrow keyboard input

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decomp_dbg: use keyboard up/down arrow to control history
This commit is contained in:
Shawn Hoffman 2024-06-26 15:25:49 -07:00
parent 2b73a6157f
commit da14dbb611
1 changed files with 33 additions and 20 deletions
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53
Ghidra/Features/Decompiler/src/decompile/cpp/ifaceterm.cc
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@ -128,6 +128,7 @@ void IfaceTerm::readLine(string &line)
int4 escval;
int4 cursor,lastlen,i;
bool onecharecho;
bool history_up, history_down;
int4 hist;
string saveline;
@ -136,6 +137,7 @@ void IfaceTerm::readLine(string &line)
hist = 0;
do {
onecharecho = false;
history_up = history_down = false;
lastlen = line.size();
val = sptr->get();
if (sptr->eof())
@ -180,23 +182,10 @@ void IfaceTerm::readLine(string &line)
case 0x0c: // C-l
break;
case 0x0e: // C-n
if (hist >0) {
hist -= 1; // Get more recent history
if (hist>0)
getHistory(line,hist-1);
else
line = saveline;
cursor = line.size();
}
history_down = true;
break;
case 0x10: // C-p
if (hist < getHistorySize()) {
hist += 1; // Get more ancient history
if (hist==1)
saveline = line;
getHistory(line,hist-1);
cursor = line.size();
}
history_up = true;
break;
case 0x12: // C-r
break;
@ -209,14 +198,20 @@ void IfaceTerm::readLine(string &line)
escval <<= 8;
escval += sptr->get();
switch(escval) {
case 0x4f44: // left arrow
if (cursor>0)
cursor -= 1;
break;
case 0x4f43: // right arrow
case 0x5b41: // up arrow
history_up = true;
break;
case 0x5b42: // down arrow
history_down = true;
break;
case 0x5b43: // right arrow
if (cursor<line.size())
cursor += 1;
break;
case 0x5b44: // left arrow
if (cursor>0)
cursor -= 1;
break;
}
break;
case 0x08:
@ -230,6 +225,24 @@ void IfaceTerm::readLine(string &line)
onecharecho = true;
break;
}
if (history_down) {
if (hist >0) {
hist -= 1; // Get more recent history
if (hist>0)
getHistory(line,hist-1);
else
line = saveline;
cursor = line.size();
}
} else if (history_up) {
if (hist < getHistorySize()) {
hist += 1; // Get more ancient history
if (hist==1)
saveline = line;
getHistory(line,hist-1);
cursor = line.size();
}
}
if (onecharecho)
optr->put(val); // Echo most characters
else {