Reorganize repo, add rust CLI and binding code,

lib/src/language.c

@@ -0,0 +1,71 @@
+#include "runtime/language.h"
+#include "runtime/subtree.h"
+#include "runtime/error_costs.h"
+#include <string.h>
+
+void ts_language_table_entry(const TSLanguage *self, TSStateId state,
+                             TSSymbol symbol, TableEntry *result) {
+  if (symbol == ts_builtin_sym_error || symbol == ts_builtin_sym_error_repeat) {
+    result->action_count = 0;
+    result->is_reusable = false;
+    result->actions = NULL;
+  } else {
+    assert(symbol < self->token_count);
+    uint32_t action_index = self->parse_table[state * self->symbol_count + symbol];
+    const TSParseActionEntry *entry = &self->parse_actions[action_index];
+    result->action_count = entry->count;
+    result->is_reusable = entry->reusable;
+    result->actions = (const TSParseAction *)(entry + 1);
+  }
+}
+
+uint32_t ts_language_symbol_count(const TSLanguage *language) {
+  return language->symbol_count + language->alias_count;
+}
+
+uint32_t ts_language_version(const TSLanguage *language) {
+  return language->version;
+}
+
+TSSymbolMetadata ts_language_symbol_metadata(const TSLanguage *language, TSSymbol symbol) {
+  if (symbol == ts_builtin_sym_error)  {
+    return (TSSymbolMetadata){.visible = true, .named = true};
+  } else if (symbol == ts_builtin_sym_error_repeat) {
+    return (TSSymbolMetadata){.visible = false, .named = false};
+  } else {
+    return language->symbol_metadata[symbol];
+  }
+}
+
+const char *ts_language_symbol_name(const TSLanguage *language, TSSymbol symbol) {
+  if (symbol == ts_builtin_sym_error) {
+    return "ERROR";
+  } else if (symbol == ts_builtin_sym_error_repeat) {
+    return "_ERROR";
+  } else {
+    return language->symbol_names[symbol];
+  }
+}
+
+TSSymbol ts_language_symbol_for_name(const TSLanguage *self, const char *name) {
+  if (!strcmp(name, "ERROR")) return ts_builtin_sym_error;
+
+  uint32_t count = ts_language_symbol_count(self);
+  for (TSSymbol i = 0; i < count; i++) {
+    if (!strcmp(self->symbol_names[i], name)) {
+      return i;
+    }
+  }
+  return 0;
+}
+
+TSSymbolType ts_language_symbol_type(const TSLanguage *language, TSSymbol symbol) {
+  TSSymbolMetadata metadata = ts_language_symbol_metadata(language, symbol);
+  if (metadata.named) {
+    return TSSymbolTypeRegular;
+  } else if (metadata.visible) {
+    return TSSymbolTypeAnonymous;
+  } else {
+    return TSSymbolTypeAuxiliary;
+  }
+}