fixed tokens

makefile

@@ -5,6 +5,9 @@
 #Compiler and Linker
 CC          := g++
 
+# Ensure POSIX utilities in MSYS2 take precedence over Windows System32
+export PATH := /usr/bin:/ucrt64/bin:$(PATH)
+
 #The Target Binary Program
 TARGET      := out.exe
 

msys2.ps1

@@ -0,0 +1,25 @@
+[CmdletBinding()]
+param(
+    [Parameter(ValueFromRemainingArguments = $true)]
+    [string[]]$Command
+)
+
+$msysRoot = if ($env:MSYS2_ROOT) { $env:MSYS2_ROOT } else { "C:\msys64" }
+$bash = Join-Path $msysRoot "usr\bin\bash.exe"
+
+if (-not (Test-Path -LiteralPath $bash)) {
+    Write-Error "MSYS2 bash was not found at: $bash"
+    exit 1
+}
+
+$env:MSYSTEM = "UCRT64"
+$env:CHERE_INVOKING = "1"
+
+if ($Command.Count -eq 0) {
+    & $bash --login
+} else {
+    $cmdString = $Command -join " "
+    & $bash -lc $cmdString
+}
+
+exit $LASTEXITCODE

src/spider/compiler/Compiler.cpp

@@ -101,7 +101,7 @@ void test_literals(TokenFactory& tf) {
 void test_addressing_modes(TokenFactory& tf) {
     std::cout << "\n--- Testing Addressing Modes ---\n";
     run_test_case(asm_ebnf::register_tok, "R0", true);
-    run_test_case(asm_ebnf::register_tok, "R15", true);
+    run_test_case(asm_ebnf::register_tok, "R15", false); // R15 does not exist!
 
     run_test_case(asm_ebnf::addrm_ind, "[ 0x1000 ]", true);
     run_test_case(asm_ebnf::addrm_ptr, "[R1]", true);

src/spider/compiler/assembler/AsmEBNF.cpp

@@ -9,7 +9,7 @@ namespace spider::asm_ebnf {
     }
 
     bool isWhithespaceCharNotCrLf(u32 ch) {
-        return ch == u32(' ');
+        return ch == u32(' ') || ch == u32('\t');
     }
 
     bool isUTF8CharNotCrLf(u32 ch) {
@@ -17,11 +17,11 @@ namespace spider::asm_ebnf {
     }
 
     bool isUTF8CharLitCont(u32 ch) {
-        return ch != u32('\'');
+        return ch != u32('\'') && ch != u32('\\') && ch != u32('\r') && ch != u32('\n');
     }
 
     bool isUTF8StringLitCont(u32 ch) {
-        return ch != u32('"');
+        return ch != u32('"') && ch != u32('\\') && ch != u32('\r') && ch != u32('\n');
     }
 
     const Token* letter;
@@ -151,12 +151,12 @@ namespace spider::asm_ebnf {
         octal_lit = tf.tag(tf.seq({ tf.opt(sign), tf["0c"], octal_digit, tf.rep(octal_digit) }), "octal_lit", true);
         binary_lit = tf.tag(tf.seq({ tf.opt(sign), tf["0b"], binary_digit, tf.rep(binary_digit) }), "binary_lit", true);
 
-        literal = tf.tag(tf.choice({ float_lit, decimal_lit, hex_lit, octal_lit, binary_lit, string_lit, char_lit }), "literal");
+        literal = tf.tag(tf.choice({ hex_lit, octal_lit, binary_lit, float_lit, decimal_lit, string_lit, char_lit }), "literal");
         literal_cast = tf.tag(tf.seq({ tf.choice("BSILFD"), ws_optional, tf["("], ws_optional, literal, ws_optional, tf[")"] }), "literal_cast");
         literal_decl = tf.tag(tf.choice({ literal, literal_cast }), "literal_decl");
 
         // (* Operands *)
-        register_tok = tf.tag(tf.seq({ tf["R"], alpha_num_char }), "register", true);
+        register_tok = tf.tag(tf.seq({ tf["R"], alpha_num_char, tf.not_(tf.choice({ alpha_num_char, tf["_"] })) }), "register", true);
 
         addrm_ind = tf.tag(tf.seq({ tf["["], ws_optional, literal_decl, ws_optional, tf["]"] }), "addrm_ind", true);
         addrm_ptr = tf.tag(tf.seq({ tf["["], ws_optional, register_tok, ws_optional, tf["]"] }), "addrm_ptr", true);

src/spider/compiler/text/Token.cpp

@@ -69,6 +69,13 @@ namespace spider {
         return t;
     }
 
+    Token* TokenFactory::not_(const Token* target) {
+        uptr<Token> p = std::make_unique<NotToken>(target);
+        auto t = p.get();
+        arena.emplace_back(std::move(p));
+        return t;
+    }
+
     Token* TokenFactory::tag(const Token* target, std::string_view tagname, bool flatten) {
         uptr<Token> p = std::make_unique<TagToken>(target, tagname, flatten);
         auto t = p.get();
@@ -97,27 +104,15 @@ namespace spider {
         return { .success = false };
     }
 
-    FnToken::FnToken(FnTokenFn chfn) : fn(chfn) {}
+    FnToken::FnToken(FnTokenFn chfn) : fn(std::move(chfn)) {}
 
     TokenResult FnToken::test(TextReader& ctx) const {
-        TokenResult r;
-
-        for (;;) {
-            auto i = ctx.push();
-            auto c = ctx.current();
-
-            if (!c || !fn(*c)) {
-                ctx.pop(i);
-                break;
-            }
-
-            r.match += *c;
+        auto c = ctx.current();
+        if (c && fn(*c)) {
             ctx.nextChar();
+            return { .success = true, .match = std::u32string(1, char32_t(*c)) };
         }
-
-        r.success = !r.match.empty();
-        if(r.success) std::cout << "[fn] matched: " << unicode::toUTF8(r.flatMatch()) << std::endl;
-        return r;
+        return { .success = false };
     }
 
     // ============================================================================
@@ -166,7 +161,6 @@ namespace spider {
             // Short-circuit branch: return immediately on first valid choice match
             TokenResult res = token_ref->test(ctx);
             if (res.success) {
-                std::cout << "[or] matched: " << unicode::toUTF8(res.flatMatch()) << std::endl;
                 return res;
             }
 
@@ -188,7 +182,6 @@ namespace spider {
         TokenResult res = target->test(ctx);
 
         if (res.success) {
-            std::cout << "[~] matched: " << unicode::toUTF8(res.flatMatch()) << std::endl;
             return res; // Option matched exactly 1 instance successfully
         }
 
@@ -198,6 +191,19 @@ namespace spider {
         return { .success = true };
     }
 
+    // ============================================================================
+    // NotToken Implementation
+    // ============================================================================
+
+    NotToken::NotToken(const Token* t) : target(t) {}
+
+    TokenResult NotToken::test(TextReader& ctx) const {
+        auto i = ctx.push();
+        TokenResult res = target->test(ctx);
+        ctx.pop(i);
+        return { .success = !res.success };
+    }
+
     // ============================================================================
     // RepToken Implementation
     // ============================================================================
@@ -225,7 +231,6 @@ namespace spider {
         // Repetition rules (* token) always evaluate to successful
         // completion state, even with 0 matches.
         r.success = true;
-        std::cout << "[*] matched: " << unicode::toUTF8(r.flatMatch()) << std::endl;
         return r;
     }
 

src/spider/compiler/text/Token.hpp

@@ -98,6 +98,8 @@ namespace spider {
 
         Token* rep(const Token* target);
 
+        Token* not_(const Token* target);
+
         Token* tag(const Token* target, std::string_view tagname, bool flatten = false);
 
     };
@@ -211,6 +213,20 @@ namespace spider {
 
     };
 
+    /**
+     * @brief Negative lookahead combinator (NotToken).
+     */
+    class NotToken : public Token {
+    private:
+        const Token* target;
+
+    public:
+        explicit NotToken(const Token* t);
+
+        TokenResult test(TextReader& ctx) const override;
+
+    };
+
     /**
      * @brief Evaluates zero-to-infinite loops of a single repetitive match signature (RepToken).
      */