mirrors
/
Tasmota
mirror of https://github.com/arendst/Tasmota.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Berry bytes() allow negative indices

This commit is contained in:
Stephan Hadinger 2021-10-17 19:13:32 +02:00
parent 5d53da4dc6
commit e49eadff4e
2 changed files with 93 additions and 72 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

144
lib/libesp32/Berry/src/be_byteslib.c
View File

@ -883,6 +883,9 @@ static int m_item(bvm *vm)
buf_impl attr = bytes_check_data(vm, 0); /* we reserve 4 bytes anyways */
if (argc >=2 && be_isint(vm, 2)) { /* single byte */
int index = be_toint(vm,2);
if (index < 0) {
index += attr.len;
}
if (index >= 0 && index < attr.len) {
be_pushint(vm, buf_get1(&attr, index));
be_return(vm);
@ -900,6 +903,9 @@ static int m_item(bvm *vm)
be_getmember(vm, 2, "__upper__");
upper = be_toint(vm, -1);
be_pop(vm, 1);
/* handle negative limits */
if (upper < 0) { upper += attr.len; }
if (lower < 0) { lower += attr.len; }
/* protection scope */
upper = upper < size ? upper : size - 1;
lower = lower < 0 ? 0 : lower;
@ -1257,38 +1263,38 @@ be_local_closure(getbits, /* name */
(be_nested_const_str("getbits", -1200798317, 7)),
(be_nested_const_str("input", -103256197, 5)),
( &(const binstruction[32]) { /* code */
0x180C0500, // 0000 LE R3 R2 K0
0x740E0002, // 0001 JMPT R3 #0005
0x540E001F, // 0002 LDINT R3 32
0x240C0403, // 0003 GT R3 R2 R3
0x780E0000, // 0004 JMPF R3 #0006
0xB0060302, // 0005 RAISE 1 K1 K2
0x580C0000, // 0006 LDCONST R3 K0
0x3C100303, // 0007 SHR R4 R1 K3
0x54160007, // 0008 LDINT R5 8
0x10040205, // 0009 MOD R1 R1 R5
0x58140000, // 000A LDCONST R5 K0
0x24180500, // 000B GT R6 R2 K0
0x781A0011, // 000C JMPF R6 #001F
0x541A0007, // 000D LDINT R6 8
0x04180C01, // 000E SUB R6 R6 R1
0x241C0C02, // 000F GT R7 R6 R2
0x781E0000, // 0010 JMPF R7 #0012
0x5C180400, // 0011 MOVE R6 R2
0x381E0806, // 0012 SHL R7 K4 R6
0x041C0F04, // 0013 SUB R7 R7 K4
0x381C0E01, // 0014 SHL R7 R7 R1
0x94200004, // 0015 GETIDX R8 R0 R4
0x2C201007, // 0016 AND R8 R8 R7
0x3C201001, // 0017 SHR R8 R8 R1
0x38201005, // 0018 SHL R8 R8 R5
0x300C0608, // 0019 OR R3 R3 R8
0x00140A06, // 001A ADD R5 R5 R6
0x04080406, // 001B SUB R2 R2 R6
0x58040000, // 001C LDCONST R1 K0
0x00100904, // 001D ADD R4 R4 K4
0x7001FFEB, // 001E JMP #000B
0x80040600, // 001F RET 1 R3
0x180C0500, // 0000 LE R3 R2 K0
0x740E0002, // 0001 JMPT R3 #0005
0x540E001F, // 0002 LDINT R3 32
0x240C0403, // 0003 GT R3 R2 R3
0x780E0000, // 0004 JMPF R3 #0006
0xB0060302, // 0005 RAISE 1 K1 K2
0x580C0000, // 0006 LDCONST R3 K0
0x3C100303, // 0007 SHR R4 R1 K3
0x54160007, // 0008 LDINT R5 8
0x10040205, // 0009 MOD R1 R1 R5
0x58140000, // 000A LDCONST R5 K0
0x24180500, // 000B GT R6 R2 K0
0x781A0011, // 000C JMPF R6 #001F
0x541A0007, // 000D LDINT R6 8
0x04180C01, // 000E SUB R6 R6 R1
0x241C0C02, // 000F GT R7 R6 R2
0x781E0000, // 0010 JMPF R7 #0012
0x5C180400, // 0011 MOVE R6 R2
0x381E0806, // 0012 SHL R7 K4 R6
0x041C0F04, // 0013 SUB R7 R7 K4
0x381C0E01, // 0014 SHL R7 R7 R1
0x94200004, // 0015 GETIDX R8 R0 R4
0x2C201007, // 0016 AND R8 R8 R7
0x3C201001, // 0017 SHR R8 R8 R1
0x38201005, // 0018 SHL R8 R8 R5
0x300C0608, // 0019 OR R3 R3 R8
0x00140A06, // 001A ADD R5 R5 R6
0x04080406, // 001B SUB R2 R2 R6
0x58040000, // 001C LDCONST R1 K0
0x00100904, // 001D ADD R4 R4 K4
0x7001FFEB, // 001E JMP #000B
0x80040600, // 001F RET 1 R3
})
)
);
@ -1317,43 +1323,43 @@ be_local_closure(setbits, /* name */
(be_nested_const_str("setbits", -1532559129, 7)),
(be_nested_const_str("input", -103256197, 5)),
( &(const binstruction[37]) { /* code */
0x14100500, // 0000 LT R4 R2 K0
0x74120002, // 0001 JMPT R4 #0005
0x5412001F, // 0002 LDINT R4 32
0x24100404, // 0003 GT R4 R2 R4
0x78120000, // 0004 JMPF R4 #0006
0xB0060302, // 0005 RAISE 1 K1 K2
0x60100009, // 0006 GETGBL R4 G9
0x5C140600, // 0007 MOVE R5 R3
0x7C100200, // 0008 CALL R4 1
0x5C0C0800, // 0009 MOVE R3 R4
0x3C100303, // 000A SHR R4 R1 K3
0x54160007, // 000B LDINT R5 8
0x10040205, // 000C MOD R1 R1 R5
0x24140500, // 000D GT R5 R2 K0
0x78160014, // 000E JMPF R5 #0024
0x54160007, // 000F LDINT R5 8
0x04140A01, // 0010 SUB R5 R5 R1
0x24180A02, // 0011 GT R6 R5 R2
0x781A0000, // 0012 JMPF R6 #0014
0x5C140400, // 0013 MOVE R5 R2
0x381A0805, // 0014 SHL R6 K4 R5
0x04180D04, // 0015 SUB R6 R6 K4
0x541E00FE, // 0016 LDINT R7 255
0x38200C01, // 0017 SHL R8 R6 R1
0x041C0E08, // 0018 SUB R7 R7 R8
0x94200004, // 0019 GETIDX R8 R0 R4
0x2C201007, // 001A AND R8 R8 R7
0x2C240606, // 001B AND R9 R3 R6
0x38241201, // 001C SHL R9 R9 R1
0x30201009, // 001D OR R8 R8 R9
0x98000808, // 001E SETIDX R0 R4 R8
0x3C0C0605, // 001F SHR R3 R3 R5
0x04080405, // 0020 SUB R2 R2 R5
0x58040000, // 0021 LDCONST R1 K0
0x00100904, // 0022 ADD R4 R4 K4
0x7001FFE8, // 0023 JMP #000D
0x80040000, // 0024 RET 1 R0
0x14100500, // 0000 LT R4 R2 K0
0x74120002, // 0001 JMPT R4 #0005
0x5412001F, // 0002 LDINT R4 32
0x24100404, // 0003 GT R4 R2 R4
0x78120000, // 0004 JMPF R4 #0006
0xB0060302, // 0005 RAISE 1 K1 K2
0x60100009, // 0006 GETGBL R4 G9
0x5C140600, // 0007 MOVE R5 R3
0x7C100200, // 0008 CALL R4 1
0x5C0C0800, // 0009 MOVE R3 R4
0x3C100303, // 000A SHR R4 R1 K3
0x54160007, // 000B LDINT R5 8
0x10040205, // 000C MOD R1 R1 R5
0x24140500, // 000D GT R5 R2 K0
0x78160014, // 000E JMPF R5 #0024
0x54160007, // 000F LDINT R5 8
0x04140A01, // 0010 SUB R5 R5 R1
0x24180A02, // 0011 GT R6 R5 R2
0x781A0000, // 0012 JMPF R6 #0014
0x5C140400, // 0013 MOVE R5 R2
0x381A0805, // 0014 SHL R6 K4 R5
0x04180D04, // 0015 SUB R6 R6 K4
0x541E00FE, // 0016 LDINT R7 255
0x38200C01, // 0017 SHL R8 R6 R1
0x041C0E08, // 0018 SUB R7 R7 R8
0x94200004, // 0019 GETIDX R8 R0 R4
0x2C201007, // 001A AND R8 R8 R7
0x2C240606, // 001B AND R9 R3 R6
0x38241201, // 001C SHL R9 R9 R1
0x30201009, // 001D OR R8 R8 R9
0x98000808, // 001E SETIDX R0 R4 R8
0x3C0C0605, // 001F SHR R3 R3 R5
0x04080405, // 0020 SUB R2 R2 R5
0x58040000, // 0021 LDCONST R1 K0
0x00100904, // 0022 ADD R4 R4 K4
0x7001FFE8, // 0023 JMP #000D
0x80040000, // 0024 RET 1 R0
})
)
);

21
lib/libesp32/Berry/tests/bytes.be
View File

@ -8,8 +8,8 @@ assert(str(b) == "bytes('')")
b=bytes(1)
assert(str(b) == "bytes('')")
b=bytes(-1)
assert(str(b) == "bytes('')")
assert(b.size() == 0)
assert(str(b) == "bytes(\'00\')")
assert(b.size() == 1)
b=bytes("a")
assert(str(b) == "bytes('')")
@ -120,7 +120,7 @@ assert(b[2] == 0x55)
#- item range -#
b = bytes("00112233445566778899AABBCCDDEEFF")
assert(str(b[1..1]) =="bytes('11')")
assert(str(b[-11..1]) =="bytes('0011')")
assert(str(b[-1..1]) =="bytes('')")
assert(str(b[0..40]) =="bytes('00112233445566778899AABBCCDDEEFF')")
assert(str(b[1..0]) =="bytes('')")
@ -168,3 +168,18 @@ assert(str(b) =="bytes('4C6F72656D20697073756D20646F6C6F722073697420616D65742C20
assert(b.tostring(0) =="bytes('4C6F72656D20697073756D20646F6C6F722073697420616D65742C20636F6E73656374657475722061646970697363696E6720656C69742C2073656420646F20656975736D6F642074656D706F7220696E6369646964756E74207574206C61626F726520657420646F6C6F7265206D61676E6120616C697175612E')")
assert(size(bytes('4C6F72656D20697073756D20646F6C6F722073697420616D65742C20636F6E73656374657475722061646970697363696E6720656C69742C2073656420646F20656975736D6F642074656D706F7220696E6369646964756E74207574206C61626F726520657420646F6C6F7265206D61676E6120616C697175612E')) == 123)
#- negative index -#
b=bytes("112233")
assert(b[0] == 0x11)
assert(b[-1] == 0x33) #- last element -#
assert(b[-3] == 0x11)
#- ranges with negative indices -#
b = bytes("00112233445566778899AABBCCDDEEFF")
assert(b[0..-1] == b)
assert(b[1..-2] == bytes("112233445566778899AABBCCDDEE"))
assert(b[5..10] == bytes("5566778899AA"))
assert(b[-10..-5] == bytes("66778899AABB"))
assert(b[5..-10] == bytes("5566"))
assert(b[7..-12] == bytes())