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fix case insensitivity

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main
Clyne 2 weeks ago
parent dac4c1baab
commit 599e15e9e4
Signed by: clyne
GPG Key ID: 3267C8EBF3F9AFC7
6 changed files with 103 additions and 90 deletions
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2
Makefile
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@ -1,5 +1,5 @@
#CXX := clang++-19
CXXFLAGS += -m32 -Os -std=c++23 -Wall -Wextra -Wpedantic -ggdb -g3
CXXFLAGS += -m32 -O0 -std=c++23 -Wall -Wextra -Wpedantic -ggdb -g3
all: main

22
core.fth
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@ -1,4 +1,4 @@
: ['] ' [ ' literal , ] ; immediate
: ['] ' postpone literal ; immediate
: if ['] _jmp0 , here 0 , ; immediate
: then here swap ! ; immediate
@ -59,14 +59,16 @@
dup here c! \ bl key u
here + c! \ bl
repeat 2drop here ;
: count dup char+ swap c@ ;
: char 0 here char+ c! bl word char+ c@ ;
: [char] char postpone literal ; immediate
: count dup char+ swap c@ ;
: char 0 here char+ c! bl word char+ c@ ;
: [char] char postpone literal ; immediate
: s" state @ if ['] _jmp , here 0 , then
[char] " word count
state @ 0= if exit then
dup cell+ allot
rot here swap !
swap postpone literal postpone literal ; immediate
: s" state @ if ['] _jmp , here 0 , then
[char] " word count
state @ 0<> if
dup cell+ allot
rot here swap !
swap postpone literal postpone literal then ; immediate
: ( begin [char] ) key = until ; immediate

14
main.cpp
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@ -37,10 +37,10 @@ constinit static sforth::native_word<".", [](auto) {
if (neg) *--ptr = '-';
std::cout << ptr << ' ';
}> dot;
constinit static sforth::native_word<"emit", [](auto) {
constinit static sforth::native_word<"EMIT", [](auto) {
std::cout << static_cast<char>(forth.pop());
}, &dot> emit;
constinit static sforth::native_word<"type", [](auto) {
constinit static sforth::native_word<"TYPE", [](auto) {
const unsigned u = forth.pop();
const auto caddr = reinterpret_cast<const char *>(forth.pop());
std::cout << std::string_view{caddr, u};
@ -69,14 +69,14 @@ bool parse_stream(auto &fth, std::istream& str, bool say_okay)
while (str.good()) {
std::getline(str, line);
if (!line.empty()) {
if (line == "bye")
return true;
for (auto& ch : line) {
if (ch >= 'A' && ch <= 'Z')
ch = ch - 'A' + 'a';
if (ch >= 'a' && ch <= 'z')
ch = ch - 'a' + 'A';
}
if (line == "BYE")
return true;
try {
fth.parse_line(line);
} catch (sforth::error e) {

2
sforth/comp_word.hpp
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@ -66,7 +66,7 @@ struct comp_word : public native_word<Name, Prol, Prev>
if (!n.has_value())
std::unreachable();
bptr->f = Prev->get_ct("_lit");
bptr->f = Prev->get_ct("_LIT");
bptr++;
bptr->c = *n;
bptr++;

151
sforth/forth.hpp
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@ -144,7 +144,7 @@ struct forth : public word_list
push(*n);
if (compiling)
execute((*get("literal"))->body());
execute((*get("LITERAL"))->body());
} else {
auto body = (*ent)->body();
@ -203,44 +203,55 @@ constexpr auto initialize()
};
constexpr static auto& dict1 = native_dict<
S{"_d" }, [](auto) { fthp->push(std::bit_cast<cell>(fthp)); }, 0
, S{"sp" }, [](auto) { fthp->push(std::bit_cast<cell>(fthp) + sizeof(cell)); }, 0
, S{"rp" }, [](auto) { fthp->push(std::bit_cast<cell>(fthp) + 2 * sizeof(cell)); }, 0
, S{"ip" }, [](auto) { fthp->push(std::bit_cast<cell>(fthp) + 3 * sizeof(cell)); }, 0
, S{"dp" }, [](auto) { fthp->push(std::bit_cast<cell>(fthp) + 4 * sizeof(cell)); }, 0
, S{"state"}, [](auto) { fthp->push(std::bit_cast<cell>(fthp) + 7 * sizeof(cell)); }, 0
, S{"base" }, [](auto) { fthp->push(std::bit_cast<cell>(fthp) + 8 * sizeof(cell)); }, 0
, S{"depth"}, [](auto) { fthp->push(std::distance(fthp->sp, fthp->dstack.end())); }, 0
, S{"unused"}, [](auto) { fthp->push(sizeof(cell) * std::distance(fthp->here, fthp->dict.end())); }, 0
, S{"_lit" }, lit_impl, 0
, S{"swap" }, [](auto) { auto a = fthp->pop(); auto b = fthp->pop(); fthp->push(a, b); }, 0
, S{"drop" }, [](auto) { fthp->pop(); }, 0
, S{"dup" }, [](auto) { fthp->push(fthp->top()); }, 0
, S{"rot" }, [](auto) { auto a = fthp->pop(); auto b = fthp->pop(); auto c = fthp->pop();
S{"_D" }, [](auto) { fthp->push(std::bit_cast<cell>(fthp)); }, 0
, S{"SP" }, [](auto) { fthp->push(std::bit_cast<cell>(fthp) + sizeof(cell)); }, 0
, S{"RP" }, [](auto) { fthp->push(std::bit_cast<cell>(fthp) + 2 * sizeof(cell)); }, 0
, S{"IP" }, [](auto) { fthp->push(std::bit_cast<cell>(fthp) + 3 * sizeof(cell)); }, 0
, S{"DP" }, [](auto) { fthp->push(std::bit_cast<cell>(fthp) + 4 * sizeof(cell)); }, 0
, S{"STATE"}, [](auto) { fthp->push(std::bit_cast<cell>(fthp) + 7 * sizeof(cell)); }, 0
, S{"BASE" }, [](auto) { fthp->push(std::bit_cast<cell>(fthp) + 8 * sizeof(cell)); }, 0
, S{"DEPTH"}, [](auto) { fthp->push(std::distance(fthp->sp, fthp->dstack.end())); }, 0
, S{"UNUSED"}, [](auto) { fthp->push(sizeof(cell) * std::distance(fthp->here, fthp->dict.end())); }, 0
, S{"_LIT" }, lit_impl, 0
, S{"SWAP" }, [](auto) { auto a = fthp->pop(); auto b = fthp->pop(); fthp->push(a, b); }, 0
, S{"DROP" }, [](auto) { fthp->pop(); }, 0
, S{"DUP" }, [](auto) { fthp->push(fthp->top()); }, 0
, S{"ROT" }, [](auto) { auto a = fthp->pop(); auto b = fthp->pop(); auto c = fthp->pop();
fthp->push(b, a, c); }, 0
, S{"+" }, [](auto) { fthp->top() += fthp->pop(); }, 0
, S{"-" }, [](auto) { fthp->top() -= fthp->pop(); }, 0
, S{"*" }, [](auto) { fthp->top() *= fthp->pop(); }, 0
, S{"/" }, [](auto) { fthp->top() /= fthp->pop(); }, 0
, S{"mod" }, [](auto) { fthp->top() %= fthp->pop(); }, 0
, S{"and" }, [](auto) { fthp->top() &= fthp->pop(); }, 0
, S{"or" }, [](auto) { fthp->top() |= fthp->pop(); }, 0
, S{"xor" }, [](auto) { fthp->top() ^= fthp->pop(); }, 0
, S{"lshift"}, [](auto) { fthp->top() <<= fthp->pop(); }, 0
, S{"rshift"}, [](auto) { fthp->top() >>= fthp->pop(); }, 0
, S{"MOD" }, [](auto) { fthp->top() %= fthp->pop(); }, 0
, S{"AND" }, [](auto) { fthp->top() &= fthp->pop(); }, 0
, S{"OR" }, [](auto) { fthp->top() |= fthp->pop(); }, 0
, S{"XOR" }, [](auto) { fthp->top() ^= fthp->pop(); }, 0
, S{"LSHIFT"}, [](auto) { fthp->top() <<= fthp->pop(); }, 0
, S{"RSHIFT"}, [](auto) {
const auto shift = fthp->pop();
addr val = fthp->pop();
val >>= shift;
fthp->push(val); }, 0
, S{"[" }, [](auto) { fthp->compiling = false; }, word_base::immediate
, S{"]" }, [](auto) { fthp->compiling = true; }, 0
, S{"immediate"}, [](auto) { const_cast<word_base *>(fthp->next)->make_immediate(); }, 0
, S{"literal"}, [](auto) {
//assert<error::compile_only_word>(fthp->compiling);
*fthp->here++ = std::bit_cast<cell>(&lit_impl);
*fthp->here++ = fthp->pop(); }, word_base::immediate
, S{"IMMEDIATE"}, [](auto) { const_cast<word_base *>(fthp->next)->make_immediate(); }, 0
, S{"LITERAL"}, [](auto x) {
if (fthp->compiling) {
*fthp->here++ = std::bit_cast<cell>(&lit_impl);
*fthp->here++ = fthp->pop();
} else {
lit_impl(x);
} }, word_base::immediate
, S{"@" }, [](auto) { fthp->push(*std::bit_cast<cell *>(fthp->pop())); }, 0
, S{"!" }, [](auto) { auto p = fthp->pop(); *std::bit_cast<cell *>(p) = fthp->pop(); }, 0
, S{"c@" }, [](auto) { fthp->push(*std::bit_cast<char *>(fthp->pop())); }, 0
, S{"c!" }, [](auto) { auto p = fthp->pop(); *std::bit_cast<char *>(p) = fthp->pop(); }, 0
, S{"C@" }, [](auto) { fthp->push(*std::bit_cast<char *>(fthp->pop())); }, 0
, S{"C!" }, [](auto) { auto p = fthp->pop(); *std::bit_cast<char *>(p) = fthp->pop(); }, 0
, S{"=" }, [](auto) { auto v = fthp->pop(); fthp->top() = -(fthp->top() == v); }, 0
, S{"<" }, [](auto) { auto v = fthp->pop(); fthp->top() = -(fthp->top() < v); }, 0
, S{"U<" }, [](auto) {
addr v = fthp->pop();
addr w = fthp->pop();
fthp->push(-(w < v)); }, 0
, S{"\'" }, [](auto) {
auto w = fthp->parse();
auto g = fthp->get(w);
@ -252,76 +263,76 @@ constexpr auto initialize()
fthp->compiling = true; }, 0
, S{";" }, [](auto) { *fthp->here++ = 0; fthp->compiling = false; }, word_base::immediate
, S{"\\" }, [](auto) { fthp->sourcei = std::string_view::npos; }, word_base::immediate
, S{"cell" }, [](auto) { fthp->push(sizeof(cell)); }, 0
, S{"_jmp" }, [](auto) {
, S{"CELL" }, [](auto) { fthp->push(sizeof(cell)); }, 0
, S{"_JMP" }, [](auto) {
auto ptr = ++fthp->ip;
fthp->ip = *std::bit_cast<func **>(ptr) - 1; }, 0
, S{"_jmp0"}, [](auto) {
, S{"_JMP0"}, [](auto) {
auto ptr = ++fthp->ip;
if (fthp->pop() == 0)
fthp->ip = *std::bit_cast<func **>(ptr) - 1; }, 0
, S{"chars"}, [](auto) {}, 0
, S{"postpone"}, [](auto) {
, S{"CHARS"}, [](auto) {}, 0
, S{"POSTPONE"}, [](auto) {
assert<error::compile_only_word>(fthp->compiling);
auto w = fthp->parse();
auto g = fthp->get(w);
assert<error::word_not_found>(g.has_value());
*fthp->here++ = std::bit_cast<cell>((*g)->body()); }, word_base::immediate
, S{"source"}, [](auto) {
, S{"SOURCE"}, [](auto) {
auto len = 0u;
while (fthp->source[len])
len++;
fthp->push(std::bit_cast<cell>(fthp->source));
fthp->push(len); }, 0
, S{">in"}, [](auto) { fthp->push(std::bit_cast<cell>(&fthp->sourcei)); }, 0
, S{"key"}, [](auto) {
, S{">IN"}, [](auto) { fthp->push(std::bit_cast<cell>(&fthp->sourcei)); }, 0
, S{"KEY"}, [](auto) {
if (fthp->sourcei != std::string_view::npos)
fthp->push(fthp->source[fthp->sourcei++]);
else
fthp->push(0); }, 0
>::word;
constexpr static auto& dict2 = comp_dict<prologue, &dict1
, S{"align" }, S{"here dup aligned swap - allot"}, 0
, S{"aligned"}, S{"cell 1- + cell 1- invert and"}, 0
, S{"decimal"}, S{"10 base !"}, 0
, S{"hex" }, S{"16 base !"}, 0
, S{"<=" }, S{"2dup < >r = r> or"}, 0
, S{"2!" }, S{"swap over ! cell+ !"}, 0
, S{"2@" }, S{"dup cell+ @ swap @"}, 0
, S{"c," }, S{"here c! 1 allot"}, 0
, S{"exit" }, S{"0 ,"}, word_base::immediate
, S{"," }, S{"here ! cell allot"}, 0
, S{"allot" }, S{"dp +!"}, 0
, S{"+!" }, S{"dup >r swap r> @ + swap !"}, 0
, S{"2swap" }, S{"rot >r rot r>"}, 0
, S{"2dup" }, S{"over over"}, 0
, S{"2over" }, S{"3 pick 3 pick"}, 0
, S{">r" }, S{"rp@ cell - rp ! rp@ cell+ @ rp@ ! rp@ cell+ !"}, 0
, S{"r>" }, S{"rp@ @ rp@ cell+ rp ! rp@ @ swap rp@ !"}, 0
, S{"over" }, S{"1 pick"}, 0
, S{"pick" }, S{"cells cell+ sp@ + @"}, 0
, S{"sp@" }, S{"sp @"}, 0
, S{"rp@" }, S{"rp @ cell+"}, 0
, S{"here" }, S{"dp @"}, 0
, S{"latest"}, S{"_d @"}, 0
, S{"ALIGN" }, S{"HERE DUP ALIGNED SWAP - ALLOT"}, 0
, S{"ALIGNED"}, S{"CELL 1- + CELL 1- INVERT AND"}, 0
, S{"DECIMAL"}, S{"10 BASE !"}, 0
, S{"HEX" }, S{"16 BASE !"}, 0
, S{"<=" }, S{"2DUP < >R = R> OR"}, 0
, S{"2!" }, S{"SWAP OVER ! CELL+ !"}, 0
, S{"2@" }, S{"DUP CELL+ @ SWAP @"}, 0
, S{"C," }, S{"HERE C! 1 ALLOT"}, 0
, S{"EXIT" }, S{"0 ,"}, word_base::immediate
, S{"," }, S{"HERE ! CELL ALLOT"}, 0
, S{"ALLOT" }, S{"DP +!"}, 0
, S{"+!" }, S{"DUP >R SWAP R> @ + SWAP !"}, 0
, S{"2SWAP" }, S{"ROT >R ROT R>"}, 0
, S{"2DUP" }, S{"OVER OVER"}, 0
, S{"2OVER" }, S{"3 PICK 3 PICK"}, 0
, S{">R" }, S{"RP@ CELL - RP ! RP@ CELL+ @ RP@ ! RP@ CELL+ !"}, 0
, S{"R>" }, S{"RP@ @ RP@ CELL+ RP ! RP@ @ SWAP RP@ !"}, 0
, S{"OVER" }, S{"1 PICK"}, 0
, S{"PICK" }, S{"CELLS CELL+ SP@ + @"}, 0
, S{"SP@" }, S{"SP @"}, 0
, S{"RP@" }, S{"RP @ CELL+"}, 0
, S{"HERE" }, S{"DP @"}, 0
, S{"LATEST"}, S{"_D @"}, 0
, S{"1-" }, S{"1 -" }, 0
, S{"1+" }, S{"1 +" }, 0
, S{"cell+" }, S{"cell +"}, 0
, S{"cells" }, S{"cell *"}, 0
, S{"char+" }, S{"1 +" }, 0
, S{"-rot" }, S{"rot rot"}, 0
, S{"2drop" }, S{"drop drop"}, 0
, S{"CELL+" }, S{"CELL +"}, 0
, S{"CELLS" }, S{"CELL *"}, 0
, S{"CHAR+" }, S{"1 +" }, 0
, S{"-ROT" }, S{"ROT ROT"}, 0
, S{"2DROP" }, S{"DROP DROP"}, 0
, S{"0<" }, S{"0 <"}, 0
, S{"0<>" }, S{"0 <>"}, 0
, S{"<>" }, S{"= 0="}, 0
, S{"0=" }, S{"0 ="}, 0
, S{">" }, S{"swap <"}, 0
, S{"invert"}, S{"-1 xor"}, 0
, S{"negate"}, S{"-1 *"}, 0
, S{">" }, S{"SWAP <"}, 0
, S{"INVERT"}, S{"-1 XOR"}, 0
, S{"NEGATE"}, S{"-1 *"}, 0
, S{"2*" }, S{"2 *"}, 0
, S{"bl" }, S{"32"}, 0
, S{"false" }, S{"0"}, 0
, S{"true" }, S{"-1"}, 0
, S{"BL" }, S{"32"}, 0
, S{"FALSE" }, S{"0"}, 0
, S{"TRUE" }, S{"-1"}, 0
>::word;
return &dict2;

2
sforth/native_word.hpp
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@ -31,7 +31,7 @@ struct native_word : public word_base
func body;
constexpr const func *get_ct(std::string_view name) const {
if (name == std::string_view{Name.data})
if (name == std::string_view{namebuf.data()})
return &body;
else if constexpr (Prev != nullptr)
return Prev->get_ct(name);

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