Finished the implemenation with Antigravity.

Headers/slex_regex.h

@@ -0,0 +1,38 @@
+#ifndef SLEX_REGEX_H
+#define SLEX_REGEX_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+// Represents an NFA state
+typedef struct NFAState {
+    int id;
+    bool is_epsilon;
+    bool char_set[256];
+    struct NFAState* edge1;
+    struct NFAState* edge2;
+    int accept_rule_index; // -1 if not accepting, >= 0 for rule index (highest priority is lowest index)
+} NFAState;
+
+// Represents an NFA fragment (start and accept states)
+typedef struct NFAFragment {
+    NFAState* start;
+    NFAState* accept;
+} NFAFragment;
+
+// Represents a DFA state
+typedef struct DFAState {
+    int id;
+    int* nfa_states;       // Sorted list of NFA state IDs that make up this DFA state
+    int nfa_state_count;
+    int transitions[256];  // DFA state transitions for each character (-1 if no transition)
+    int accept_rule_index; // -1 if not accepting, >= 0 if accepting (stores rule index)
+} DFAState;
+
+// Compiles a set of regular expression patterns into a minimized/complete DFA
+DFAState* slex_compile_regexes(char** patterns, int pattern_count, int* dfa_state_count_out);
+
+// Frees all DFA states allocated by slex_compile_regexes
+void slex_free_dfa(DFAState* dfa_states, int dfa_state_count);
+
+#endif