Add marks and regex addressing systems

- Hook up parser to buffer edits.
- Other minor fixes.

include/bed.h

@@ -31,5 +31,6 @@ struct BEd {
   ~BEd();
   void handle(std::string_view cmd, bool eof);
   void run();
+  void suffix_handle(char s);
 };
 } // namespace bed

include/internal/address/address.h

@@ -41,17 +41,11 @@ struct Address {
     char m;
   };
 
-  struct RegexLine { // /re/ or ?re?
+  struct Regex { // /re/ or ?re?
     internal::Direction dir;
     std::string re;
   };
 
-  // BEd Extended types of addressing.
-  struct Regex {             // &/re/ or &?re?
-    internal::Direction dir; // returns next/previous line containing the regex
-    std::string re;          // (not only if it matches full line)
-  };
-
   struct Diagnostic { // #n# for diagnostic number n. (From lsp.)
     uint16_t n;
   };
@@ -91,7 +85,6 @@ struct Address {
     Last,
     Number,
     Mark,
-    RegexLine,
     Regex,
     Diagnostic,
     DiagnosticNext,

include/internal/buffer/buffer.h

@@ -34,6 +34,7 @@ struct Buffer {
   void remove(uint64_t start_line, uint64_t end_line);
   void append(std::string text, uint64_t line);
   void print(BEd &ctx, uint64_t start_line, uint64_t end_line);
+  void number_print(BEd &ctx, uint64_t start_line, uint64_t end_line);
   std::string list_string(std::string_view s);
 };
 } // namespace bed::internal::buffer

include/internal/marks/marks.h

@@ -3,5 +3,55 @@
 #include "pch.h"
 
 namespace bed::internal::marks {
-struct MarksEngine {};
+struct MarksEngine {
+  uint64_t marks[1 << UINT8_WIDTH]{UINT64_MAX};
+
+  MarksEngine() {
+    for (auto &m : marks)
+      m = UINT64_MAX;
+  }
+
+  uint64_t get(uint8_t m) {
+    return marks[m];
+  }
+
+  void set(uint8_t m, uint64_t line) {
+    marks[m] = line;
+  }
+
+  void insert(uint64_t start, uint64_t count) {
+    for (uint16_t i = 0; i <= UINT8_MAX; ++i) {
+      if (marks[i] == UINT64_MAX)
+        continue;
+      if (marks[i] >= start)
+        marks[i] += count;
+    }
+  }
+
+  void erase(uint64_t start, uint64_t count) {
+    for (uint16_t i = 0; i <= UINT8_MAX; ++i) {
+      if (marks[i] == UINT64_MAX)
+        continue;
+      if (marks[i] >= start) {
+        if (marks[i] < start + count)
+          marks[i] = UINT64_MAX;
+        else
+          marks[i] -= count;
+      }
+    }
+  }
+
+  void collapse(uint64_t start, uint64_t count) {
+    for (uint16_t i = 0; i <= UINT8_MAX; ++i) {
+      if (marks[i] == UINT64_MAX)
+        continue;
+      if (marks[i] >= start) {
+        if (marks[i] < start + count)
+          marks[i] = start;
+        else
+          marks[i] -= count;
+      }
+    }
+  }
+};
 } // namespace bed::internal::marks

include/internal/syntax/decl.h

@@ -69,17 +69,8 @@ struct Token {
 };
 
 struct ParseEvent {
-  std::string_view name;
-  enum T : uint8_t {
-    Opening,
-    Closing,
-    SymbolDef,
-    Symbol
-  } ev_type;
-  uint8_t type; // type.
-
-  ParseEvent(T t) : ev_type(t) {}
-  ParseEvent(T e_t, std::string_view s, uint8_t type) : name(s), ev_type(e_t), type(type) {}
+  uint8_t closing;
+  ParseEvent(uint8_t t) : closing(t) {}
 };
 
 struct Language {
@@ -90,16 +81,6 @@ struct Language {
   std::function<void(void *)> destroy;
 };
 
-struct Symbol {
-  uint32_t definition;
-  uint16_t reference_count;
-  uint8_t type;
-  uint8_t len;
-  // first chars of count len, padded to 4 bytes.
-  // then a set of references. 32bit
-  // references later as modifying at end is faster than shifting the name.
-};
-
 struct ParseState {
   static constexpr uint64_t BRANCH_BIT = 1ull << 63;
   static constexpr uint64_t LINES_MASK = ~BRANCH_BIT;

include/internal/syntax/ruby/decl.h

@@ -5,15 +5,6 @@
 #include "tries.h"
 
 namespace bed::internal::syntax::ruby {
-enum struct ScopeTypes : uint8_t {
-  None,
-  Comment,
-  Method,
-  Class,
-  Module,
-  Block
-};
-
 struct alignas(2) RubyState {
   struct RubyInternalState {
     uint16_t brace_level;

include/internal/vase/vase.h

@@ -3,6 +3,7 @@
 #include "buffer/append.h"
 #include "buffer/original.h"
 #include "constants.h"
+#include "definitions.h"
 #include "iterators/line.h"
 #include "pch.h"
 #include "shard.h"
@@ -92,6 +93,9 @@ struct Vase {
     std::string_view pattern, Range range, std::string_view options
   );
 
+  uint64_t find_next(std::string_view pattern, uint64_t start);
+  uint64_t find_prev(std::string_view pattern, uint64_t start);
+
   bool undo();
   bool redo();
   void snapshot();