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Add a /bin/clear that prints the clear terminal escape sequence.

Browse source 
It doesn't work yet, but it will!
This commit is contained in:
Andreas Kling 2018-10-27 17:39:08 +02:00
parent 8f91a47aeb
commit cc7e3519a6
Notes: sideshowbarker 2024-07-19 18:37:29 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/cc7e3519a67
6 changed files with 25 additions and 8 deletions
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14
AK/printf.cpp
View file

@ -1,8 +1,10 @@
#define ALWAYS_INLINE inline __attribute__ ((always_inline))
typedef unsigned char byte;
typedef unsigned short word;
typedef unsigned int dword;
inline size_t strlen(const char* str)
ALWAYS_INLINE size_t strlen(const char* str)
{
size_t len = 0;
while (*(str++))
@ -13,7 +15,7 @@ inline size_t strlen(const char* str)
static constexpr const char* h = "0123456789abcdef";
template<typename PutChFunc>
int printHex(PutChFunc putch, char*& bufptr, dword number, byte fields)
ALWAYS_INLINE int printHex(PutChFunc putch, char*& bufptr, dword number, byte fields)
{
int ret = 0;
byte shr_count = fields * 4;
@ -26,7 +28,7 @@ int printHex(PutChFunc putch, char*& bufptr, dword number, byte fields)
}
template<typename PutChFunc>
int printNumber(PutChFunc putch, char*& bufptr, dword number, bool leftPad, bool zeroPad, dword fieldWidth)
ALWAYS_INLINE int printNumber(PutChFunc putch, char*& bufptr, dword number, bool leftPad, bool zeroPad, dword fieldWidth)
{
dword divisor = 1000000000;
char ch;
@ -67,7 +69,7 @@ int printNumber(PutChFunc putch, char*& bufptr, dword number, bool leftPad, bool
}
template<typename PutChFunc>
int printString(PutChFunc putch, char*& bufptr, const char* str, bool leftPad, dword fieldWidth)
ALWAYS_INLINE int printString(PutChFunc putch, char*& bufptr, const char* str, bool leftPad, dword fieldWidth)
{
size_t len = strlen(str);
if (!fieldWidth)
@ -88,7 +90,7 @@ int printString(PutChFunc putch, char*& bufptr, const char* str, bool leftPad, d
template<typename PutChFunc>
int printSignedNumber(PutChFunc putch, char*& bufptr, int number, bool leftPad, bool zeroPad, dword fieldWidth)
ALWAYS_INLINE int printSignedNumber(PutChFunc putch, char*& bufptr, int number, bool leftPad, bool zeroPad, dword fieldWidth)
{
if (number < 0) {
putch(bufptr, '-');
@ -98,7 +100,7 @@ int printSignedNumber(PutChFunc putch, char*& bufptr, int number, bool leftPad,
}
template<typename PutChFunc>
int printfInternal(PutChFunc putch, char* buffer, const char*& fmt, char*& ap)
ALWAYS_INLINE int printfInternal(PutChFunc putch, char* buffer, const char*& fmt, char*& ap)
{
const char *p;

BIN
Kernel/_fs_contents
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Binary file not shown.

1
Kernel/sync-sh
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@ -12,6 +12,7 @@ cp ../Userland/false mnt/bin/false
cp ../Userland/hostname mnt/bin/hostname
cp ../Userland/cat mnt/bin/cat
cp ../Userland/uname mnt/bin/uname
cp ../Userland/clear mnt/bin/clear
cp kernel.map mnt/
umount mnt
sync

1
Userland/.gitignore vendored
View file

@ -11,3 +11,4 @@ true
hostname
cat
uname
clear

9
Userland/Makefile
View file

@ -10,7 +10,8 @@ OBJS = \
false.o \
hostname.o \
cat.o \
uname.o
uname.o \
clear.o
APPS = \
id \
@ -24,7 +25,8 @@ APPS = \
false \
hostname \
cat \
uname
uname \
clear
ARCH_FLAGS =
STANDARD_FLAGS = -std=c++17 -nostdinc++ -nostdlib
@ -80,6 +82,9 @@ cat: cat.o
uname: uname.o
$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
clear: clear.o
$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
.cpp.o:
@echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $<

8
Userland/clear.cpp Normal file
View file

@ -0,0 +1,8 @@
#include <LibC/stdio.h>
int main(int, char**)
{
printf("\033[3J\033[H\033[2J");
return 0;
}