Update single header

1 files changed, 871 insertions, 138 deletions

diff --git a/include/kit.inl.h b/include/kit.inl.h
index 55e05ab..1b66297 100644
--- a/include/kit.inl.h
+++ b/include/kit.inl.h
@@ -64,25 +64,28 @@ typedef double f64;
 #define KIT_STATUS_H
 enum {
   KIT_OK                           = 0,
-  KIT_ERROR_NOT_IMPLEMENTED        = 1,
+  KIT_ERROR_INTERNAL               = 1,
   KIT_ERROR_BAD_ALLOC              = (1 << 1),
   KIT_ERROR_INVALID_ARGUMENT       = (1 << 2),
   KIT_ERROR_MKDIR_FAILED           = (1 << 3),
   KIT_ERROR_RMDIR_FAILED           = (1 << 4),
   KIT_ERROR_UNLINK_FAILED          = (1 << 5),
   KIT_ERROR_FILE_ALREADY_EXISTS    = (1 << 6),
-  KIT_ERROR_FILE_DO_NOT_EXIST      = (1 << 7),
+  KIT_ERROR_FILE_DOES_NOT_EXIST    = (1 << 7),
   KIT_ERROR_PATH_TOO_LONG          = (1 << 8),
   KIT_ERROR_SOCKETS_STARTUP_FAILED = (1 << 9),
   KIT_ERROR_SOCKET_CONTROL_FAILED  = (1 << 10),
   KIT_ERROR_NAME_TOO_LONG          = (1 << 11),
   KIT_ERROR_INVALID_SIZE           = (1 << 12),
   KIT_ERROR_INVALID_NAME           = (1 << 13),
-  KIT_ERROR_SHM_OPEN_FAILED        = (1 << 14),
-  KIT_ERROR_SHM_UNLINK_FAILED      = (1 << 15),
-  KIT_ERROR_FTRUNCATE_FAILED       = (1 << 16),
-  KIT_ERROR_MMAP_FAILED            = (1 << 17),
-  KIT_ERROR_MUNMAP_FAILED          = (1 << 18),
+  KIT_ERROR_INVALID_PATH           = (1 << 14),
+  KIT_ERROR_OPEN_FAILED            = (1 << 15),
+  KIT_ERROR_TRUNCATE_FAILED        = (1 << 16),
+  KIT_ERROR_MAP_FAILED             = (1 << 17),
+  KIT_ERROR_UNMAP_FAILED           = (1 << 18),
+  KIT_ERROR_SYNC_FAILED            = (1 << 19),
+  KIT_ERROR_CLOSE_FAILED           = (1 << 20),
+  KIT_ERROR_NOT_IMPLEMENTED        = (1 << 30),
 };
 typedef i32 kit_status_t;
 #endif
@@ -123,7 +126,7 @@ typedef struct {
 //  See KIT_ENABLE_CUSTOM_ALLOC_DISPATCH macro.
 //
 void *kit_alloc_dispatch(kit_allocator_t *alloc, i32 request,
-                         i64 size, i64 previous_size, void *poi32er);
+                         i64 size, i64 previous_size, void *pointer);
 kit_allocator_t kit_alloc_default(void);
 kit_allocator_t kit_alloc_buffer(i64 size, void *buffer);
 #ifdef __cplusplus
@@ -147,7 +150,7 @@ extern "C" {
 #ifndef TIME_UTC
 #  define TIME_UTC 1
 #endif
-#ifdef __MINGW32__
+#ifdef KIT_REQUIRE_TIMESPEC_GET
 #  ifndef WIN32_LEAN_AND_MEAN
 #    define WIN32_LEAN_AND_MEAN 1
 #  endif
@@ -538,6 +541,7 @@ i8 kit_ar_compare(i64 left_element_size, i64 left_size,
  *********************************************************************/
 #ifndef KIT_DYNAMIC_ARRAY_H
 #define KIT_DYNAMIC_ARRAY_H
+#include <string.h>
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -573,11 +577,14 @@ void kit_da_resize_exact(kit_da_void_t *array, i64 element_size,
   KIT_DA_INIT(name_, (size_), NULL)
 /*  Destroy dynamic array.
  */
-#define KIT_DA_DESTROY(array_)                                 \
-  do {                                                         \
-    if ((array_).values != NULL)                               \
-      kit_alloc_dispatch((array_).alloc, KIT_DEALLOCATE, 0, 0, \
-                         (array_).values);                     \
+#define KIT_DA_DESTROY(array_)                              \
+  do {                                                      \
+    if ((array_).values != NULL)                            \
+      kit_alloc_dispatch((array_).alloc, KIT_DEALLOCATE, 0, \
+                         (array_).capacity *                \
+                             sizeof((array_).values[0]),    \
+                         (array_).values);                  \
+    memset(&(array_), 0, sizeof(array_));                   \
   } while (0)
 /*  Resize dynamic array.
  */
@@ -673,7 +680,8 @@ static char *kit_make_bs(kit_str_t s) {
   i64         n     = s.size;
   if (n > 4095)
     n = 4095;
-  memcpy(buf[index], s.values, n);
+  if (n > 0)
+    memcpy(buf[index], s.values, n);
   buf[index][n] = '\0';
   char *result  = buf[index];
   index         = (index + 1) % 8;
@@ -686,10 +694,10 @@ static char *kit_make_bs(kit_str_t s) {
 #define KIT_SZ(static_str_) \
   kit_str(sizeof(static_str_) - 1, (static_str_))
 #define KIT_WRAP_BS(string_) kit_str(strlen(string_), (string_))
-#define KIT_WRAP_STR(string_) \
-  kit_str((string_).size, (string_).values)
+#define KIT_WRAP_STR(...) \
+  kit_str((__VA_ARGS__).size, (__VA_ARGS__).values)
 #ifndef KIT_DISABLE_SHORT_NAMES
-#  define BS(string_) kit_make_bs(KIT_WRAP_STR(string_))
+#  define BS(...) kit_make_bs(KIT_WRAP_STR(__VA_ARGS__))
 #  define str_t kit_str_t
 #  define SZ KIT_SZ
 #  define WRAP_BS KIT_WRAP_BS
@@ -1331,26 +1339,44 @@ typedef struct {
   i64               offset;
   void             *internal;
   kit_str_builder_t data;
-} kit_ib_handle_t;
-typedef i8 (*kit_ib_read_condition_fn)(kit_str_t data);
-kit_ib_handle_t kit_ib_wrap(kit_is_handle_t  upstream,
-                            kit_allocator_t *alloc);
-kit_ib_handle_t kit_ib_read(kit_ib_handle_t buf, i64 size);
-kit_ib_handle_t kit_ib_read_while(kit_ib_handle_t          buf,
-                                  kit_ib_read_condition_fn condition);
-void kit_ib_destroy(kit_ib_handle_t buf);
+} kit_ib_t;
+typedef i8 (*kit_ib_read_condition_fn)(kit_str_t data, void *context);
+kit_ib_t kit_ib_wrap(kit_is_handle_t  upstream,
+                     kit_allocator_t *alloc);
+kit_ib_t kit_ib_copy(kit_ib_t buf);
+kit_ib_t kit_ib_read(kit_ib_t buf, i64 size);
+kit_ib_t kit_ib_any(kit_ib_t buf, kit_str_t data);
+kit_ib_t kit_ib_none(kit_ib_t buf, kit_str_t data);
+kit_ib_t kit_ib_exact(kit_ib_t buf, kit_str_t data);
+kit_ib_t kit_ib_until(kit_ib_t buf, kit_str_t data);
+kit_ib_t kit_ib_while(kit_ib_t                 buf,
+                      kit_ib_read_condition_fn condition,
+                      void                    *context);
+void kit_ib_destroy(kit_ib_t buf);
 #define KIT_IB_WRAP(upstream) kit_ib_wrap(upstream, NULL)
+#define KIT_IB_SKIP(buf_, proc_, ...)                \
+  do {                                               \
+    kit_ib_t temp_buf_ = (buf_);                     \
+    (buf_)             = proc_((buf_), __VA_ARGS__); \
+    kit_ib_destroy((temp_buf_));                     \
+  } while (0)
 #ifdef __cplusplus
 }
 #endif
 #ifndef KIT_DISABLE_SHORT_NAMES
-#  define ib_handle_t kit_ib_handle_t
+#  define ib_t kit_ib_t
 #  define ib_read_condition_fn kit_ib_read_condition_fn
 #  define ib_wrap kit_ib_wrap
+#  define ib_copy kit_ib_copy
 #  define ib_read kit_ib_read
-#  define ib_read_while kit_ib_read_while
+#  define ib_any kit_ib_any
+#  define ib_none kit_ib_none
+#  define ib_exact kit_ib_exact
+#  define ib_until kit_ib_until
+#  define ib_while kit_ib_while
 #  define ib_destroy kit_ib_destroy
 #  define IB_WRAP KIT_IB_WRAP
+#  define IB_SKIP KIT_IB_SKIP
 #endif
 #endif
 /*********************************************************************
@@ -1384,16 +1410,16 @@ typedef struct {
 #endif
 #define KIT_AF_INTERNAL(coro_) (*((kit_af_type_void *) (coro_)))
 #ifdef KIT_ENABLE_CUSTOM_ASYNC_FUNCTION_DISPATCH
-/*  Application should implement this function if custom async
- *  function dispatch is enabled.
- *
- *  See KIT_ENABLE_CUSTOM_ASYNC_FUNCTION_DISPATCH macro.
- */
+//  Application should implement this function if custom async
+//  function dispatch is enabled.
+//
+//  See KIT_ENABLE_CUSTOM_ASYNC_FUNCTION_DISPATCH macro.
+//
 void kit_async_function_dispatch(void *promise);
 #else
 static void kit_async_function_dispatch(void *promise) {
-  /*  Dynamic dispatch by default.
-   */
+  //  Dynamic dispatch by default.
+  //
   KIT_AF_INTERNAL(promise)._state_machine(promise);
 }
 #endif
@@ -1557,6 +1583,7 @@ static void kit_async_function_dispatch(void *promise) {
  *********************************************************************/
 #ifndef KIT_FILE_H
 #define KIT_FILE_H
+#include <stdio.h>
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -1575,6 +1602,18 @@ typedef struct {
   kit_status_t status;
   KIT_DA(kit_str_builder_t) files;
 } kit_path_list_t;
+enum { KIT_FILE_MAP_PRIVATE, KIT_FILE_MAP_SHARED };
+typedef struct {
+  kit_status_t status;
+  i64          size;
+  u8          *bytes;
+#if defined(_WIN32) && !defined(__CYGWIN__)
+  void *_file;
+  void *_map;
+#else
+  int _fd;
+#endif
+} kit_mapped_file_t;
 #if defined(_WIN32) && !defined(__CYGWIN__)
 #  define KIT_PATH_DELIM_C '\\'
 #  define KIT_PATH_DELIM "\\"
@@ -1592,17 +1631,20 @@ kit_str_builder_t kit_path_user(kit_allocator_t *alloc);
 kit_str_builder_t kit_path_cache(kit_allocator_t *alloc);
 kit_str_t kit_path_index(kit_str_t path, i64 index);
 kit_str_t kit_path_take(kit_str_t path, i64 count);
-kit_status_t kit_file_create_folder(kit_str_t path);
-kit_status_t kit_file_create_folder_recursive(kit_str_t path);
+kit_status_t kit_folder_create(kit_str_t path);
+kit_status_t kit_folder_create_recursive(kit_str_t path);
 kit_status_t kit_file_remove(kit_str_t path);
-kit_status_t kit_file_remove_folder(kit_str_t path);
+kit_status_t kit_folder_remove(kit_str_t path);
 kit_status_t kit_file_remove_recursive(kit_str_t        path,
                                        kit_allocator_t *alloc);
 kit_path_type_t kit_path_type(kit_str_t path);
 kit_file_info_t kit_file_info(kit_str_t path);
-kit_path_list_t kit_file_enum_folder(kit_str_t        path,
-                                     kit_allocator_t *alloc);
+kit_path_list_t kit_folder_enum(kit_str_t        path,
+                                kit_allocator_t *alloc);
 void kit_path_list_destroy(kit_path_list_t list);
+kit_mapped_file_t kit_file_map(kit_str_t path, i64 size, i32 mode);
+kit_status_t      kit_file_sync(kit_mapped_file_t *mf);
+kit_status_t      kit_file_unmap(kit_mapped_file_t *mf);
 #ifdef __cplusplus
 }
 #endif
@@ -1613,19 +1655,24 @@ void kit_path_list_destroy(kit_path_list_t list);
 #  define path_cache kit_path_cache
 #  define path_index kit_path_index
 #  define path_take kit_path_take
-#  define file_create_folder kit_file_create_folder
-#  define file_create_folder_recursive \
-    kit_file_create_folder_recursive
+#  define folder_create kit_folder_create
+#  define folder_create_recursive kit_folder_create_recursive
 #  define file_remove kit_file_remove
-#  define file_remove_folder kit_file_remove_folder
+#  define folder_remove kit_folder_remove
 #  define file_remove_recursive kit_file_remove_recursive
 #  define path_type_t kit_path_type_t
 #  define path_type kit_path_type
 #  define file_info_t kit_file_info_t
 #  define file_info kit_file_info
 #  define path_list_t kit_path_list_t
-#  define file_enum_folder kit_file_enum_folder
+#  define folder_enum kit_folder_enum
 #  define path_list_destroy kit_path_list_destroy
+#  define mapped_file_t kit_mapped_file_t
+#  define file_map kit_file_map
+#  define file_sync kit_file_sync
+#  define file_unmap kit_file_unmap
+#  define FILE_MAP_PRIVATE KIT_FILE_MAP_PRIVATE
+#  define FILE_MAP_SHARED KIT_FILE_MAP_SHARED
 #  define PATH_DELIM_C KIT_PATH_DELIM_C
 #  define PATH_DELIM KIT_PATH_DELIM
 #  define ENV_HOME KIT_ENV_HOME
@@ -1824,7 +1871,6 @@ typedef struct {
   void *_handle;
 #else
   i8   _owned;
-  i32  _fd;
   char _name[NAME_MAX + 1];
 #endif
 } kit_shared_memory_t;
@@ -1835,9 +1881,70 @@ enum {
 kit_shared_memory_t kit_shared_memory_open(kit_str_t name, i64 size,
                                            i32 mode);
 kit_status_t        kit_shared_memory_close(kit_shared_memory_t *mem);
+kit_status_t        kit_shared_memory_clean(kit_str_t name);
 #ifdef __cplusplus
 }
 #endif
+#ifndef KIT_DISABLE_SHORT_NAMES
+#  define shared_memory_t kit_shared_memory_t
+#  define shared_memory_clean kit_shared_memory_clean
+#  define shared_memory_open kit_shared_memory_open
+#  define shared_memory_close kit_shared_memory_close
+#  define SHARED_MEMORY_OPEN KIT_SHARED_MEMORY_OPEN
+#  define SHARED_MEMORY_CREATE KIT_SHARED_MEMORY_CREATE
+#endif
+#endif
+/*********************************************************************
+ *                                                                   *
+ *    File:   source/kit/xml.h                                       *
+ *                                                                   *
+ *********************************************************************/
+#ifndef KIT_XML_H
+#define KIT_XML_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+typedef struct kit_xml_ kit_xml_t;
+typedef struct {
+  kit_str_builder_t name;
+  kit_str_builder_t value;
+} kit_xml_property_t;
+typedef KIT_DA(kit_xml_property_t) kit_da_xml_property_t;
+typedef KIT_DA(kit_xml_t) kit_da_xml_t;
+struct kit_xml_ {
+  i8                    is_declaration;
+  kit_str_builder_t     tag;
+  kit_str_builder_t     text;
+  kit_str_builder_t     tail;
+  kit_da_xml_property_t properties;
+  kit_da_xml_t          children;
+};
+typedef struct {
+  kit_status_t status;
+  kit_xml_t    xml;
+} kit_xml_parse_result_t;
+typedef struct {
+  kit_status_t      status;
+  kit_str_builder_t text;
+} kit_xml_text_t;
+kit_xml_parse_result_t kit_xml_parse(kit_is_handle_t  is,
+                                     kit_allocator_t *alloc);
+kit_xml_text_t kit_xml_print(kit_xml_t *xml, kit_allocator_t *alloc);
+kit_xml_text_t kit_xml_full_text(kit_xml_t       *xml,
+                                 kit_allocator_t *alloc);
+void           kit_xml_destroy(kit_xml_t *xml);
+#ifdef __cplusplus
+}
+#endif
+#ifndef KIT_DISABLE_SHORT_NAMES
+#  define xml_parse kit_xml_parse
+#  define xml_print kit_xml_print
+#  define xml_full_text kit_xml_full_text
+#  define xml_destroy kit_xml_destroy
+#  define xml_t kit_xml_t
+#  define xml_parse_result_t kit_xml_parse_result_t
+#  define xml_text_t kit_xml_text_t
+#endif
 #endif
 #ifdef KIT_IMPLEMENTATION
 /*********************************************************************
@@ -2766,7 +2873,6 @@ void thrd_yield(void) {
  *                                                                   *
  *********************************************************************/
 #include <assert.h>
-#include <string.h>
 void kit_da_init(kit_da_void_t *array, i64 element_size, i64 size,
                  kit_allocator_t *alloc) {
   assert(array != NULL);
@@ -2958,7 +3064,8 @@ static void kit_buf_acquire_(void *p) {
   ((internal_buffer_t *) p)->ref_count++;
 }
 static void kit_buf_release_(void *p) {
-  assert(p != NULL);
+  if (p == NULL)
+    return;
   internal_buffer_t *buf = (internal_buffer_t *) p;
   if (--buf->ref_count == 0) {
     DA_DESTROY(buf->data);
@@ -2986,9 +3093,9 @@ static i64 kit_buf_read_(void *p, i64 offset, kit_str_t destination) {
   memcpy(destination.values, buf->data.values + offset, n);
   return n;
 }
-kit_ib_handle_t kit_ib_wrap(kit_is_handle_t  upstream,
-                            kit_allocator_t *alloc) {
-  kit_ib_handle_t buf;
+kit_ib_t kit_ib_wrap(kit_is_handle_t  upstream,
+                     kit_allocator_t *alloc) {
+  kit_ib_t buf;
   memset(&buf, 0, sizeof buf);
   buf.status = KIT_OK;
   DA_INIT(buf.data, 0, alloc);
@@ -2997,8 +3104,20 @@ kit_ib_handle_t kit_ib_wrap(kit_is_handle_t  upstream,
     buf.status = KIT_ERROR_BAD_ALLOC;
   return buf;
 }
-kit_ib_handle_t kit_ib_read(kit_ib_handle_t buf, i64 size) {
-  kit_ib_handle_t next;
+kit_ib_t kit_ib_copy(kit_ib_t buf) {
+  kit_ib_t next;
+  memset(&next, 0, sizeof next);
+  if (buf.status != KIT_OK) {
+    next.status = buf.status;
+    return next;
+  }
+  kit_buf_acquire_(buf.internal);
+  next.offset   = buf.offset;
+  next.internal = buf.internal;
+  return next;
+}
+kit_ib_t kit_ib_read(kit_ib_t buf, i64 size) {
+  kit_ib_t next;
   memset(&next, 0, sizeof next);
   if (buf.status != KIT_OK) {
     next.status = buf.status;
@@ -3019,9 +3138,8 @@ kit_ib_handle_t kit_ib_read(kit_ib_handle_t buf, i64 size) {
     next.status = KIT_ERROR_BAD_ALLOC;
   return next;
 }
-kit_ib_handle_t kit_ib_read_while(
-    kit_ib_handle_t buf, kit_ib_read_condition_fn condition) {
-  kit_ib_handle_t next;
+kit_ib_t kit_ib_any(kit_ib_t buf, kit_str_t data) {
+  kit_ib_t next;
   memset(&next, 0, sizeof next);
   if (buf.status != KIT_OK) {
     next.status = buf.status;
@@ -3033,14 +3151,144 @@ kit_ib_handle_t kit_ib_read_while(
   for (;; ++size) {
     kit_buf_adjust_(buf.internal, buf.offset + size + 1);
     DA_RESIZE(next.data, size + 1);
-    if (next.data.size != size + 1)
+    assert(next.data.size == size + 1);
+    if (next.data.size != size + 1) {
       next.status = KIT_ERROR_BAD_ALLOC;
+      return next;
+    }
+    kit_str_t destination = { .size   = 1,
+                              .values = next.data.values + size };
+    i64       n = kit_buf_read_(buf.internal, buf.offset + size,
+                                destination);
+    if (n != 1)
+      break;
+    i8 found = 0;
+    for (i64 i = 0; i < data.size; i++)
+      if (data.values[i] == destination.values[0]) {
+        found = 1;
+        break;
+      }
+    if (!found)
+      break;
+  }
+  next.offset   = buf.offset + size;
+  next.internal = buf.internal;
+  DA_RESIZE(next.data, size);
+  if (next.data.size != size)
+    next.status = KIT_ERROR_BAD_ALLOC;
+  return next;
+}
+kit_ib_t kit_ib_none(kit_ib_t buf, kit_str_t data) {
+  kit_ib_t next;
+  memset(&next, 0, sizeof next);
+  if (buf.status != KIT_OK) {
+    next.status = buf.status;
+    return next;
+  }
+  kit_buf_acquire_(buf.internal);
+  DA_INIT(next.data, 0, kit_buf_alloc_(buf.internal));
+  i64 size = 0;
+  for (;; ++size) {
+    kit_buf_adjust_(buf.internal, buf.offset + size + 1);
+    DA_RESIZE(next.data, size + 1);
+    assert(next.data.size == size + 1);
+    if (next.data.size != size + 1) {
+      next.status = KIT_ERROR_BAD_ALLOC;
+      return next;
+    }
+    kit_str_t destination = { .size   = 1,
+                              .values = next.data.values + size };
+    i64       n = kit_buf_read_(buf.internal, buf.offset + size,
+                                destination);
+    if (n != 1)
+      break;
+    i8 found = 0;
+    for (i64 i = 0; i < data.size; i++)
+      if (data.values[i] == destination.values[0]) {
+        found = 1;
+        break;
+      }
+    if (found)
+      break;
+  }
+  next.offset   = buf.offset + size;
+  next.internal = buf.internal;
+  DA_RESIZE(next.data, size);
+  if (next.data.size != size)
+    next.status = KIT_ERROR_BAD_ALLOC;
+  return next;
+}
+kit_ib_t kit_ib_exact(kit_ib_t buf, kit_str_t data) {
+  kit_ib_t res = kit_ib_read(buf, data.size);
+  if (!AR_EQUAL(res.data, data))
+    res.status = KIT_ERROR_INTERNAL;
+  return res;
+}
+kit_ib_t kit_ib_until(kit_ib_t buf, kit_str_t data) {
+  kit_ib_t next;
+  memset(&next, 0, sizeof next);
+  if (buf.status != KIT_OK) {
+    next.status = buf.status;
+    return next;
+  }
+  kit_buf_acquire_(buf.internal);
+  DA_INIT(next.data, 0, kit_buf_alloc_(buf.internal));
+  i64 size = 0;
+  for (;; ++size) {
+    kit_buf_adjust_(buf.internal, buf.offset + size + 1);
+    DA_RESIZE(next.data, size + 1);
+    assert(next.data.size == size + 1);
+    if (next.data.size != size + 1) {
+      next.status = KIT_ERROR_BAD_ALLOC;
+      return next;
+    }
+    kit_str_t destination = { .size   = 1,
+                              .values = next.data.values + size };
+    i64       n = kit_buf_read_(buf.internal, buf.offset + size,
+                                destination);
+    if (n != 1)
+      break;
+    if (size + 1 >= data.size &&
+        AR_EQUAL(kit_str(data.size,
+                         next.data.values + (size + 1 - data.size)),
+                 data)) {
+      size -= data.size - 1;
+      break;
+    }
+  }
+  next.offset   = buf.offset + size;
+  next.internal = buf.internal;
+  DA_RESIZE(next.data, size);
+  if (next.data.size != size)
+    next.status = KIT_ERROR_BAD_ALLOC;
+  return next;
+}
+kit_ib_t kit_ib_while(kit_ib_t                 buf,
+                      kit_ib_read_condition_fn condition,
+                      void                    *context) {
+  kit_ib_t next;
+  memset(&next, 0, sizeof next);
+  if (buf.status != KIT_OK) {
+    next.status = buf.status;
+    return next;
+  }
+  kit_buf_acquire_(buf.internal);
+  DA_INIT(next.data, 0, kit_buf_alloc_(buf.internal));
+  i64 size = 0;
+  for (;; ++size) {
+    kit_buf_adjust_(buf.internal, buf.offset + size + 1);
+    DA_RESIZE(next.data, size + 1);
+    assert(next.data.size == size + 1);
+    if (next.data.size != size + 1) {
+      next.status = KIT_ERROR_BAD_ALLOC;
+      return next;
+    }
     kit_str_t destination = { .size   = 1,
                               .values = next.data.values + size };
     i64       n = kit_buf_read_(buf.internal, buf.offset + size,
                                 destination);
     kit_str_t data = { .size = size + 1, .values = next.data.values };
-    if (n != 1 || condition == NULL || condition(data) == 0)
+    if (n != 1 || condition == NULL || condition(data, context) == 0)
       break;
   }
   next.offset   = buf.offset + size;
@@ -3050,7 +3298,7 @@ kit_ib_handle_t kit_ib_read_while(
     next.status = KIT_ERROR_BAD_ALLOC;
   return next;
 }
-void kit_ib_destroy(kit_ib_handle_t buf) {
+void kit_ib_destroy(kit_ib_t buf) {
   kit_buf_release_(buf.internal);
   DA_DESTROY(buf.data);
 }
@@ -3064,20 +3312,28 @@ void kit_ib_destroy(kit_ib_handle_t buf) {
 #include <string.h>
 enum { PATH_BUF_SIZE = 4096 };
 #if defined(_WIN32) && !defined(__CYGWIN__)
-#  include <stdint.h>
 #  ifndef WIN32_LEAN_AND_MEAN
-#    define WIN32_LEAN_AND_MEAN 1
+#    define WIN32_LEAN_AND_MEAN
 #  endif
-#  include <Windows.h>
-#  include <Shlwapi.h>
+#  ifndef NOMINMAX
+#    define NOMINMAX
+#  endif
+#  include <windows.h>
+#  include <shlwapi.h>
 #else
 #  include <dirent.h>
+#  include <sys/mman.h>
 #  include <sys/stat.h>
+#  include <fcntl.h>
 #  include <unistd.h>
+#  include <limits.h>
 #endif
 #ifdef __APPLE__
 #  define st_mtim st_mtimespec
 #endif
+#ifndef PATH_MAX
+#  define PATH_MAX MAX_PATH
+#endif
 static i32 is_delim(char c) {
   return c == '/' || c == '\\';
 }
@@ -3234,56 +3490,33 @@ kit_str_t kit_path_take(kit_str_t path, i64 count) {
     s.size = i;
   return s;
 }
-#if defined(_WIN32) && !defined(__CYGWIN__)
-static void win32_prepare_path_(WCHAR *buf, kit_str_t path) {
-  assert(path.size == 0 || path.values != NULL);
-  assert(path.size + 5 < PATH_BUF_SIZE);
-  memset(buf, 0, PATH_BUF_SIZE);
-  buf[0] = L'\\';
-  buf[1] = L'\\';
-  buf[2] = L'?';
-  buf[3] = L'\\';
-  if (path.size > 0 && path.size + 5 < PATH_BUF_SIZE)
-    for (i64 i = 0; i < path.size; i++) {
-      if (path.values[i] == '/')
-        buf[4 + i] = L'\\';
-      else
-        buf[4 + i] = path.values[i];
-    }
-}
-#  define PREPARE_PATH_BUF_   \
-    WCHAR buf[PATH_BUF_SIZE]; \
-    win32_prepare_path_(buf, path)
-#else
-static void unix_prepare_path_(char *buf, kit_str_t path) {
+static void kit_prepare_path_(char *buf, kit_str_t path) {
   assert(path.size == 0 || path.values != NULL);
   assert(path.size + 1 < PATH_BUF_SIZE);
   memset(buf, 0, PATH_BUF_SIZE);
   if (path.size > 0 && path.size + 1 < PATH_BUF_SIZE)
     memcpy(buf, path.values, path.size);
 }
-#  define PREPARE_PATH_BUF_  \
-    char buf[PATH_BUF_SIZE]; \
-    unix_prepare_path_(buf, path)
-#endif
-kit_status_t kit_file_create_folder(kit_str_t path) {
+#define PREPARE_PATH_BUF_  \
+  char buf[PATH_BUF_SIZE]; \
+  kit_prepare_path_(buf, path)
+kit_status_t kit_folder_create(kit_str_t path) {
   PREPARE_PATH_BUF_;
 #if defined(_WIN32) && !defined(__CYGWIN__)
-  return CreateDirectoryW(buf, NULL) ? KIT_OK
+  return CreateDirectoryA(buf, NULL) ? KIT_OK
                                      : KIT_ERROR_MKDIR_FAILED;
 #else
-  return mkdir(buf, 0755) == 0 ? KIT_OK : KIT_ERROR_MKDIR_FAILED;
+  return mkdir(buf, 0775) == 0 ? KIT_OK : KIT_ERROR_MKDIR_FAILED;
 #endif
 }
-kit_status_t kit_file_create_folder_recursive(kit_str_t path) {
-  i64 i;
-  for (i = 0;; i++) {
+kit_status_t kit_folder_create_recursive(kit_str_t path) {
+  for (i32 i = 0;; i++) {
     str_t part = kit_path_take(path, i);
     i32   type = kit_path_type(part);
     if (type == KIT_PATH_FILE)
       return KIT_ERROR_FILE_ALREADY_EXISTS;
     if (type == KIT_PATH_NONE) {
-      kit_status_t s = kit_file_create_folder(part);
+      kit_status_t s = kit_folder_create(part);
       if (s != KIT_OK)
         return s;
     }
@@ -3295,15 +3528,15 @@ kit_status_t kit_file_create_folder_recursive(kit_str_t path) {
 kit_status_t kit_file_remove(kit_str_t path) {
   PREPARE_PATH_BUF_;
 #if defined(_WIN32) && !defined(__CYGWIN__)
-  return DeleteFileW(buf) ? KIT_OK : KIT_ERROR_UNLINK_FAILED;
+  return DeleteFileA(buf) ? KIT_OK : KIT_ERROR_UNLINK_FAILED;
 #else
   return unlink(buf) == 0 ? KIT_OK : KIT_ERROR_UNLINK_FAILED;
 #endif
 }
-kit_status_t kit_file_remove_folder(kit_str_t path) {
+kit_status_t kit_folder_remove(kit_str_t path) {
   PREPARE_PATH_BUF_;
 #if defined(_WIN32) && !defined(__CYGWIN__)
-  return RemoveDirectoryW(buf) ? KIT_OK : KIT_ERROR_RMDIR_FAILED;
+  return RemoveDirectoryA(buf) ? KIT_OK : KIT_ERROR_RMDIR_FAILED;
 #else
   return rmdir(buf) == 0 ? KIT_OK : KIT_ERROR_RMDIR_FAILED;
 #endif
@@ -3313,30 +3546,40 @@ kit_status_t kit_file_remove_recursive(kit_str_t        path,
   i32 type = kit_path_type(path);
   i64 i;
   switch (type) {
-    case KIT_PATH_FILE: return kit_file_remove(path);
+    case KIT_PATH_FILE: {
+      kit_status_t s = kit_file_remove(path);
+      assert(s == KIT_OK);
+      return s;
+    }
     case KIT_PATH_FOLDER: {
-      kit_path_list_t list = kit_file_enum_folder(path, alloc);
+      kit_path_list_t list = kit_folder_enum(path, alloc);
+      assert(list.status == KIT_OK);
       if (list.status != KIT_OK) {
         kit_path_list_destroy(list);
         return list.status;
       }
       for (i = 0; i < list.files.size; i++) {
-        str_t s = { .size   = list.files.values[i].size,
-                    .values = list.files.values[i].values };
-        kit_file_remove_recursive(s, alloc);
+        str_builder_t full_path = kit_path_join(
+            path, WRAP_STR(list.files.values[i]), alloc);
+        kit_status_t s = kit_file_remove_recursive(
+            WRAP_STR(full_path), alloc);
+        DA_DESTROY(full_path);
+        assert(s == KIT_OK);
       }
       kit_path_list_destroy(list);
-      return kit_file_remove_folder(path);
+      kit_status_t s = kit_folder_remove(path);
+      assert(s == KIT_OK);
+      return s;
     }
     default:;
   }
-  return KIT_ERROR_FILE_DO_NOT_EXIST;
+  return KIT_ERROR_FILE_DOES_NOT_EXIST;
 }
 kit_path_type_t kit_path_type(kit_str_t path) {
   PREPARE_PATH_BUF_;
 #if defined(_WIN32) && !defined(__CYGWIN__)
-  if (PathFileExistsW(buf)) {
-    if ((GetFileAttributesW(buf) & FILE_ATTRIBUTE_DIRECTORY) != 0)
+  if (PathFileExistsA(buf)) {
+    if ((GetFileAttributesA(buf) & FILE_ATTRIBUTE_DIRECTORY) != 0)
       return KIT_PATH_FOLDER;
     else
       return KIT_PATH_FILE;
@@ -3357,7 +3600,7 @@ kit_file_info_t kit_file_info(kit_str_t path) {
   memset(&result, 0, sizeof result);
   PREPARE_PATH_BUF_;
 #if defined(_WIN32) && !defined(__CYGWIN__)
-  HANDLE f = CreateFileW(buf, GENERIC_READ, FILE_SHARE_READ, NULL,
+  HANDLE f = CreateFileA(buf, GENERIC_READ, FILE_SHARE_READ, NULL,
                          OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
   if (f != INVALID_HANDLE_VALUE) {
     FILETIME ft;
@@ -3381,54 +3624,55 @@ kit_file_info_t kit_file_info(kit_str_t path) {
   if (stat(buf, &info) == 0 && S_ISREG(info.st_mode)) {
     result.size = (i64) info.st_size;
 #  ifndef st_mtime
-    /*  No support for nanosecond timestamps.
-     */
+    //  No support for nanosecond timestamps.
+    //
     result.time_modified_sec = (i64) info.st_mtime;
 #  else
     result.time_modified_sec  = (i64) info.st_mtim.tv_sec;
     result.time_modified_nsec = (i32) info.st_mtim.tv_nsec;
 #  endif
-    result.status = KIT_OK;
+    result.status            = KIT_OK;
     return result;
   }
 #endif
-  result.status = KIT_ERROR_FILE_DO_NOT_EXIST;
+  result.status = KIT_ERROR_FILE_DOES_NOT_EXIST;
   return result;
 }
-kit_path_list_t kit_file_enum_folder(kit_str_t        path,
-                                     kit_allocator_t *alloc) {
+kit_path_list_t kit_folder_enum(kit_str_t        path,
+                                kit_allocator_t *alloc) {
   PREPARE_PATH_BUF_;
   kit_path_list_t result = { .status = KIT_OK };
   DA_INIT(result.files, 0, alloc);
 #if defined(_WIN32) && !defined(__CYGWIN__)
-  if (path.size + 7 >= PATH_BUF_SIZE) {
+  if (path.size + 3 >= PATH_BUF_SIZE) {
     result.status = KIT_ERROR_PATH_TOO_LONG;
     return result;
   }
-  buf[path.size + 4] = '\\';
-  buf[path.size + 5] = '*';
-  WIN32_FIND_DATAW data;
-  HANDLE           find = FindFirstFileW(buf, &data);
+  buf[path.size]     = '\\';
+  buf[path.size + 1] = '*';
+  WIN32_FIND_DATAA data;
+  HANDLE           find = FindFirstFileA(buf, &data);
   if (find == INVALID_HANDLE_VALUE)
     return result;
   do {
+    if (strcmp(data.cFileName, ".") == 0 ||
+        strcmp(data.cFileName, "..") == 0)
+      continue;
     i64 n = result.files.size;
     DA_RESIZE(result.files, n + 1);
     if (result.files.size != n + 1) {
       result.status = KIT_ERROR_BAD_ALLOC;
       break;
     }
-    i64 size = 0;
-    while (size < MAX_PATH && data.cFileName[size] != L'\0') size++;
+    i64 size = (i64) strlen(data.cFileName);
     DA_INIT(result.files.values[n], size, alloc);
     if (result.files.values[n].size != size) {
       DA_RESIZE(result.files, n);
       result.status = KIT_ERROR_BAD_ALLOC;
       break;
     }
-    for (i64 i = 0; i < size; i++)
-      result.files.values[n].values[i] = data.cFileName[i];
-  } while (FindNextFileW(find, &data) != 0);
+    memcpy(result.files.values[n].values, data.cFileName, size);
+  } while (FindNextFileA(find, &data) != 0);
   FindClose(find);
 #else
   DIR *directory = opendir(buf);
@@ -3466,6 +3710,135 @@ void kit_path_list_destroy(kit_path_list_t list) {
     DA_DESTROY(list.files.values[i]);
   DA_DESTROY(list.files);
 }
+kit_mapped_file_t kit_file_map(kit_str_t path, i64 size, i32 mode) {
+  assert(size > 0);
+  assert(path.size > 0);
+  assert(path.size <= PATH_MAX);
+  assert(path.values != NULL);
+  kit_mapped_file_t mf;
+  memset(&mf, 0, sizeof mf);
+  if (size <= 0) {
+    mf.status = KIT_ERROR_INVALID_SIZE;
+    return mf;
+  }
+  if (path.size <= 0) {
+    mf.status = KIT_ERROR_INVALID_ARGUMENT;
+    return mf;
+  }
+  if (path.size > PATH_MAX) {
+    mf.status = KIT_ERROR_PATH_TOO_LONG;
+    return mf;
+  }
+#if defined(_WIN32) && !defined(__CYGWIN__)
+  char buf[MAX_PATH + 1];
+  memcpy(buf, path.values, path.size);
+  buf[path.size] = '\0';
+  HANDLE file = CreateFileA(
+      buf, GENERIC_READ | GENERIC_WRITE,
+      mode == FILE_MAP_SHARED ? FILE_SHARE_READ | FILE_SHARE_WRITE
+                              : 0,
+      NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+  if (file == INVALID_HANDLE_VALUE) {
+    mf.status = KIT_ERROR_OPEN_FAILED;
+    return mf;
+  }
+  LONG high = (LONG) (size >> 32);
+  if (SetFilePointer(file, (LONG) size, &high, FILE_BEGIN) ==
+      INVALID_SET_FILE_POINTER) {
+    CloseHandle(file);
+    assert(0);
+    mf.status = KIT_ERROR_TRUNCATE_FAILED;
+    return mf;
+  }
+  if (!SetEndOfFile(file)) {
+    CloseHandle(file);
+    assert(0);
+    mf.status = KIT_ERROR_TRUNCATE_FAILED;
+    return mf;
+  }
+  HANDLE map = CreateFileMappingA(file, NULL, PAGE_READWRITE,
+                                  (DWORD) (size >> 32), (DWORD) size,
+                                  NULL);
+  if (map == INVALID_HANDLE_VALUE) {
+    CloseHandle(file);
+    assert(0);
+    mf.status = KIT_ERROR_MAP_FAILED;
+    return mf;
+  }
+  void *p = MapViewOfFile(map, FILE_MAP_ALL_ACCESS, 0, 0,
+                          (SIZE_T) size);
+  if (p == NULL) {
+    CloseHandle(map);
+    CloseHandle(file);
+    assert(0);
+    mf.status = KIT_ERROR_MAP_FAILED;
+    return mf;
+  }
+  mf.status = KIT_OK;
+  mf.size   = size;
+  mf.bytes  = p;
+  mf._file  = file;
+  mf._map   = map;
+#else
+  char buf[PATH_MAX + 1];
+  memcpy(buf, path.values, path.size);
+  buf[path.size] = '\0';
+  i32 fd = open(buf, O_RDWR | O_CREAT, 0664);
+  if (fd == -1) {
+    mf.status = KIT_ERROR_OPEN_FAILED;
+    return mf;
+  }
+  if (ftruncate(fd, size) == -1) {
+    close(fd);
+    assert(0);
+    mf.status = KIT_ERROR_TRUNCATE_FAILED;
+    return mf;
+  }
+  void *p = mmap(
+      NULL, size, PROT_READ | PROT_WRITE,
+      mode == KIT_FILE_MAP_SHARED ? MAP_SHARED : MAP_PRIVATE, fd, 0);
+  if (p == MAP_FAILED) {
+    close(fd);
+    assert(0);
+    mf.status = KIT_ERROR_MAP_FAILED;
+    return mf;
+  }
+  mf.status = KIT_OK;
+  mf.size   = size;
+  mf.bytes  = (u8 *) p;
+  mf._fd    = fd;
+#endif
+  return mf;
+}
+kit_status_t kit_file_sync(kit_mapped_file_t *mf) {
+  assert(mf != NULL);
+  if (mf == NULL)
+    return KIT_ERROR_INVALID_ARGUMENT;
+  kit_status_t status = KIT_OK;
+#if !defined(_WIN32) || defined(__CYGWIN__)
+  if (msync(mf->bytes, mf->size, MS_SYNC) != 0)
+    status |= KIT_ERROR_SYNC_FAILED;
+#endif
+  return status;
+}
+kit_status_t kit_file_unmap(kit_mapped_file_t *mf) {
+  assert(mf != NULL);
+  if (mf == NULL)
+    return KIT_ERROR_INVALID_ARGUMENT;
+  kit_status_t status = KIT_OK;
+#if defined(_WIN32) && !defined(__CYGWIN__)
+  if (!UnmapViewOfFile(mf->bytes))
+    status |= KIT_ERROR_UNMAP_FAILED;
+  if (!CloseHandle(mf->_map) || !CloseHandle(mf->_file))
+    status |= KIT_ERROR_CLOSE_FAILED;
+#else
+  if (munmap(mf->bytes, mf->size) != 0)
+    status |= KIT_ERROR_UNMAP_FAILED;
+  if (close(mf->_fd) != 0)
+    status |= KIT_ERROR_CLOSE_FAILED;
+#endif
+  return status;
+}
 /*********************************************************************
  *                                                                   *
  *    File:   source/kit/mersenne_twister_64.c                       *
@@ -3737,28 +4110,28 @@ kit_shared_memory_t kit_shared_memory_open(kit_str_t name, i64 size,
                         : O_RDWR,
                     mode == KIT_SHARED_MEMORY_CREATE ? 0660 : 0);
   if (fd == -1) {
-    mem.status = KIT_ERROR_SHM_OPEN_FAILED;
+    mem.status = KIT_ERROR_OPEN_FAILED;
     return mem;
   }
   if (mode == KIT_SHARED_MEMORY_CREATE && ftruncate(fd, size) == -1) {
     shm_unlink(mem._name);
     assert(0);
-    mem.status = KIT_ERROR_FTRUNCATE_FAILED;
+    mem.status = KIT_ERROR_TRUNCATE_FAILED;
     return mem;
   }
   void *p = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd,
                  0);
+  close(fd);
   if (p == MAP_FAILED) {
     shm_unlink(mem._name);
     assert(0);
-    mem.status = KIT_ERROR_MMAP_FAILED;
+    mem.status = KIT_ERROR_MAP_FAILED;
     return mem;
   }
   mem.status = KIT_OK;
   mem.size   = size;
   mem.bytes  = (u8 *) p;
   mem._owned = (mode == KIT_SHARED_MEMORY_CREATE);
-  mem._fd    = fd;
   return mem;
 }
 kit_status_t kit_shared_memory_close(kit_shared_memory_t *mem) {
@@ -3767,11 +4140,29 @@ kit_status_t kit_shared_memory_close(kit_shared_memory_t *mem) {
     return KIT_ERROR_INVALID_ARGUMENT;
   kit_status_t status = KIT_OK;
   if (munmap(mem->bytes, mem->size) != 0)
-    status |= KIT_ERROR_MUNMAP_FAILED;
+    status |= KIT_ERROR_UNMAP_FAILED;
   if (mem->_owned && shm_unlink(mem->_name) != 0)
     status |= KIT_ERROR_UNLINK_FAILED;
   return status;
 }
+kit_status_t kit_shared_memory_clean(kit_str_t name) {
+  assert(name.size > 0);
+  assert(name.size + 1 <= NAME_MAX);
+  assert(name.values != NULL);
+  if (name.size <= 0)
+    return KIT_ERROR_INVALID_NAME;
+  if (name.size + 1 > NAME_MAX)
+    return KIT_ERROR_NAME_TOO_LONG;
+  for (i64 i = 0; i < name.size; i++)
+    if (name.values[i] == '/' || name.values[i] == '\\')
+      return KIT_ERROR_INVALID_NAME;
+  char buf[NAME_MAX + 1] = "/";
+  memcpy(buf + 1, name.values, name.size);
+  buf[1 + name.size] = '\0';
+  if (shm_unlink(buf) != 0)
+    return KIT_ERROR_UNLINK_FAILED;
+  return KIT_OK;
+}
 #endif
 /*********************************************************************
  *                                                                   *
@@ -3811,18 +4202,19 @@ kit_shared_memory_t kit_shared_memory_open(kit_str_t name, i64 size,
   memcpy(buf + 7, name.values, name.size);
   buf[7 + name.size] = '\0';
   HANDLE h = mode == KIT_SHARED_MEMORY_CREATE
-                 ? CreateFileMappingA(INVALID_HANDLE_VALUE, NULL,
-                                      PAGE_READWRITE, 0, size, buf)
+                 ? CreateFileMappingA(
+                       INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
+                       (DWORD) (size >> 32), (DWORD) size, buf)
                  : OpenFileMappingA(FILE_MAP_ALL_ACCESS, 0, buf);
-  if (h == NULL) {
-    mem.status = KIT_ERROR_SHM_OPEN_FAILED;
+  if (h == INVALID_HANDLE_VALUE) {
+    mem.status = KIT_ERROR_OPEN_FAILED;
     return mem;
   }
-  void *p = MapViewOfFile(h, FILE_MAP_ALL_ACCESS, 0, 0, size);
-  assert(p != NULL);
+  void *p = MapViewOfFile(h, FILE_MAP_ALL_ACCESS, 0, 0,
+                          (SIZE_T) size);
   if (p == NULL) {
     CloseHandle(h);
-    mem.status = KIT_ERROR_MMAP_FAILED;
+    mem.status = KIT_ERROR_MAP_FAILED;
     return mem;
   }
   mem.status  = KIT_OK;
@@ -3835,11 +4227,352 @@ kit_status_t kit_shared_memory_close(kit_shared_memory_t *mem) {
   assert(mem != NULL);
   i32 status = KIT_OK;
   if (!UnmapViewOfFile(mem->bytes))
-    status |= KIT_ERROR_MUNMAP_FAILED;
+    status |= KIT_ERROR_UNMAP_FAILED;
   if (!CloseHandle(mem->_handle))
     status |= KIT_ERROR_UNLINK_FAILED;
   return status;
 }
+kit_status_t kit_shared_memory_clean(kit_str_t name) {
+  //  Do nothing.
+  //
+  return KIT_OK;
+}
 #endif
+/*********************************************************************
+ *                                                                   *
+ *    File:   source/kit/xml.c                                       *
+ *                                                                   *
+ *********************************************************************/
+#include <assert.h>
+typedef struct {
+  ib_t              last;
+  kit_str_builder_t text;
+  kit_da_xml_t      tags;
+} kit_xml_intermediate_t;
+static kit_status_t kit_xml_unescape_(str_builder_t *str) {
+  assert(str != NULL);
+  str_builder_t buf;
+  DA_INIT(buf, str->size, str->alloc);
+  buf.size = 0;
+  for (i64 i = 0; i < str->size; i++)
+    if (str->values[i] != '&')
+      buf.values[buf.size++] = str->values[i];
+    else {
+      i64 n = 1;
+      while (i + n < str->size && str->values[i + n] != ';') n++;
+      if (i + n >= str->size) {
+        DA_DESTROY(buf);
+        return KIT_ERROR_INTERNAL;
+      }
+      if (n == 3 && memcmp(str->values + i, "&lt;", 4) == 0)
+        buf.values[buf.size++] = '<';
+      else if (n == 3 && memcmp(str->values + i, "&gt;", 4) == 0)
+        buf.values[buf.size++] = '>';
+      else if (n == 4 && memcmp(str->values + i, "&amp;", 5) == 0)
+        buf.values[buf.size++] = '&';
+      else if (n == 5 && memcmp(str->values + i, "&quot;", 6) == 0)
+        buf.values[buf.size++] = '"';
+      else if (n == 5 && memcmp(str->values + i, "&apos;", 6) == 0)
+        buf.values[buf.size++] = '\'';
+      else {
+        DA_DESTROY(buf);
+        return KIT_ERROR_INTERNAL;
+      }
+      i += n;
+    }
+  DA_DESTROY(*str);
+  *str = buf;
+  return KIT_OK;
+}
+static ib_t kit_xml_parse_text_(ib_t begin) {
+  ib_t text = ib_until(begin, SZ("<"));
+  ib_t last = ib_copy(text);
+  for (;;) {
+    ib_t comment_open = ib_exact(last, SZ("<!--"));
+    if (comment_open.status != KIT_OK) {
+      ib_destroy(comment_open);
+      break;
+    }
+    ib_t comment_text  = ib_until(comment_open, SZ("-->"));
+    ib_t comment_close = ib_exact(comment_text, SZ("-->"));
+    ib_t next_text     = ib_until(comment_close, SZ("<"));
+    if (next_text.status == KIT_OK && next_text.data.size > 0) {
+      i64 n = text.data.size;
+      DA_RESIZE(text.data, n + next_text.data.size);
+      if (text.data.size != n + next_text.data.size)
+        next_text.status = KIT_ERROR_BAD_ALLOC;
+      else
+        memcpy(text.data.values + n, next_text.data.values,
+               next_text.data.size);
+    }
+    ib_destroy(last);
+    last = ib_copy(next_text);
+    ib_destroy(comment_open);
+    ib_destroy(comment_text);
+    ib_destroy(comment_close);
+    ib_destroy(next_text);
+  }
+  //  move
+  DA_DESTROY(last.data);
+  last.data = text.data;
+  memset(&text.data, 0, sizeof text.data);
+  kit_status_t s = kit_xml_unescape_(&last.data);
+  if (s != KIT_OK)
+    last.status = s;
+  ib_destroy(text);
+  return last;
+}
+static ib_t kit_xml_parse_string_(ib_t begin) {
+  ib_t quotes_open = ib_exact(begin, SZ("\""));
+  ib_t apostr_open = ib_exact(begin, SZ("'"));
+  ib_t open = quotes_open.status == KIT_OK ? quotes_open
+                                           : apostr_open;
+  ib_t text  = ib_until(open, WRAP_STR(open.data));
+  ib_t close = ib_exact(text, WRAP_STR(open.data));
+  //  move
+  DA_DESTROY(close.data);
+  close.data = text.data;
+  memset(&text.data, 0, sizeof text.data);
+  kit_status_t s = kit_xml_unescape_(&close.data);
+  if (s == KIT_OK)
+    close.status = s;
+  ib_destroy(quotes_open);
+  ib_destroy(apostr_open);
+  ib_destroy(text);
+  return close;
+}
+static kit_xml_intermediate_t kit_xml_parse_buf_(
+    ib_t begin, kit_allocator_t *alloc) {
+  kit_xml_intermediate_t res;
+  memset(&res, 0, sizeof res);
+  ib_t last, spaces;
+  memset(&last, 0, sizeof last);
+  memset(&spaces, 0, sizeof spaces);
+  ib_t tag_text = kit_xml_parse_text_(begin);
+  last          = ib_copy(tag_text);
+  DA_INIT(res.tags, 0, alloc);
+  for (;;) {
+    ib_t tagend_open = ib_exact(last, SZ("</"));
+    ib_destroy(tagend_open);
+    if (tagend_open.status == KIT_OK)
+      break;
+    ib_t tag_open = ib_exact(last, SZ("<"));
+    if (tag_open.status != KIT_OK) {
+      ib_destroy(tag_open);
+      break;
+    }
+    xml_t tag;
+    memset(&tag, 0, sizeof tag);
+    ib_t decl_open = ib_exact(tag_open, SZ("?"));
+    ib_destroy(last);
+    if (decl_open.status == KIT_OK) {
+      tag.is_declaration = 1;
+      last               = ib_copy(decl_open);
+    } else
+      last = ib_copy(tag_open);
+    ib_destroy(decl_open);
+    spaces        = ib_any(last, SZ(" \t\r\n"));
+    ib_t tag_name = ib_none(spaces, SZ(" \t\r\n/>"));
+    ib_destroy(spaces);
+    DA_INIT(tag.properties, 0, alloc);
+    ib_destroy(last);
+    last = ib_copy(tag_name);
+    for (;;) {
+      spaces        = ib_any(last, SZ(" \t\r\n"));
+      ib_t property = ib_none(spaces, SZ(" \t\r\n=?/>"));
+      ib_destroy(spaces);
+      if (property.status != KIT_OK || property.data.size == 0) {
+        ib_destroy(property);
+        break;
+      }
+      spaces      = ib_any(property, SZ(" \t\r\n"));
+      ib_t equals = ib_exact(spaces, SZ("="));
+      ib_destroy(spaces);
+      spaces     = ib_any(equals, SZ(" \t\r\n"));
+      ib_t value = kit_xml_parse_string_(spaces);
+      ib_destroy(spaces);
+      ib_destroy(last);
+      last = ib_copy(value);
+      if (last.status == KIT_OK) {
+        i64 n = tag.properties.size;
+        DA_RESIZE(tag.properties, n + 1);
+        if (tag.properties.size != n + 1) {
+          last.status = KIT_ERROR_BAD_ALLOC;
+          DA_DESTROY(tag.properties);
+        } else {
+          //  move
+          tag.properties.values[n].name = property.data;
+          memset(&property.data, 0, sizeof property.data);
+          //  move
+          tag.properties.values[n].value = value.data;
+          memset(&value.data, 0, sizeof value.data);
+        }
+      }
+      ib_destroy(property);
+      ib_destroy(equals);
+      ib_destroy(value);
+    }
+    spaces = ib_any(last, SZ(" \t\r\n"));
+    if (tag.is_declaration) {
+      ib_t tag_decl_close = ib_exact(spaces, SZ("?>"));
+      ib_destroy(spaces);
+      ib_destroy(last);
+      last = tag_decl_close;
+      DA_INIT(tag.text, 0, alloc);
+      DA_INIT(tag.children, 0, alloc);
+    } else {
+      ib_t tag_close       = ib_exact(spaces, SZ(">"));
+      ib_t tag_close_empty = ib_exact(spaces, SZ("/>"));
+      ib_destroy(spaces);
+      if (tag_close.status == KIT_OK) {
+        kit_xml_intermediate_t im = kit_xml_parse_buf_(tag_close,
+                                                       alloc);
+        tag.text                  = im.text;
+        tag.children              = im.tags;
+        tagend_open = ib_exact(im.last, SZ("</"));
+        ib_destroy(im.last);
+        spaces           = ib_any(tagend_open, SZ(" \t\r\n"));
+        ib_t tagend_name = ib_exact(spaces, WRAP_STR(tag_name.data));
+        ib_destroy(spaces);
+        spaces            = ib_any(tagend_name, SZ(" \t\r\n"));
+        ib_t tagend_close = ib_exact(spaces, SZ(">"));
+        ib_destroy(spaces);
+        ib_destroy(tagend_open);
+        ib_destroy(tagend_name);
+        ib_destroy(last);
+        last = tagend_close;
+      } else if (tag_close_empty.status == KIT_OK) {
+        ib_destroy(last);
+        last = ib_copy(tag_close_empty);
+        DA_INIT(tag.text, 0, alloc);
+        DA_INIT(tag.children, 0, alloc);
+      } else
+        last.status = KIT_ERROR_INTERNAL;
+      ib_destroy(tag_close);
+      ib_destroy(tag_close_empty);
+    }
+    ib_t tag_tail = kit_xml_parse_text_(last);
+    ib_destroy(last);
+    last = ib_copy(tag_tail);
+    if (last.status == KIT_OK) {
+      i64 n = res.tags.size;
+      DA_RESIZE(res.tags, n + 1);
+      if (res.tags.size != n + 1) {
+        last.status = KIT_ERROR_BAD_ALLOC;
+        xml_destroy(&tag);
+      } else {
+        //  move
+        tag.tag = tag_name.data;
+        memset(&tag_name.data, 0, sizeof tag_name.data);
+        //  move
+        tag.tail = tag_tail.data;
+        memset(&tag_tail.data, 0, sizeof tag_tail.data);
+        res.tags.values[n] = tag;
+      }
+    } else
+      xml_destroy(&tag);
+    ib_destroy(tag_open);
+    ib_destroy(tag_name);
+    ib_destroy(tag_tail);
+  }
+  if (last.status != KIT_OK) {
+    for (i64 i = 0; i < res.tags.size; i++)
+      xml_destroy(res.tags.values + i);
+    DA_DESTROY(res.text);
+    DA_DESTROY(res.tags);
+  } else {
+    //  move
+    res.text = tag_text.data;
+    memset(&tag_text.data, 0, sizeof tag_text.data);
+  }
+  ib_destroy(tag_text);
+  res.last = last;
+  return res;
+}
+kit_xml_parse_result_t kit_xml_parse(kit_is_handle_t  is,
+                                     kit_allocator_t *alloc) {
+  ib_t                   ib = ib_wrap(is, alloc);
+  kit_xml_intermediate_t im = kit_xml_parse_buf_(ib, alloc);
+  ib_destroy(ib);
+  kit_xml_parse_result_t res;
+  memset(&res, 0, sizeof res);
+  res.status = im.last.status;
+  ib_destroy(im.last);
+  if (res.status != KIT_OK)
+    return res;
+  if (im.text.size == 0 && im.tags.size == 1) {
+    res.xml = im.tags.values[0];
+    DA_DESTROY(im.text);
+    DA_DESTROY(im.tags);
+    return res;
+  }
+  DA_INIT(res.xml.tag, 0, alloc);
+  DA_INIT(res.xml.tail, 0, alloc);
+  DA_INIT(res.xml.properties, 0, alloc);
+  res.xml.text     = im.text;
+  res.xml.children = im.tags;
+  return res;
+}
+kit_xml_text_t kit_xml_print(kit_xml_t *xml, kit_allocator_t *alloc) {
+  assert(xml != NULL);
+  xml_text_t result;
+  memset(&result, 0, sizeof result);
+  result.status = KIT_ERROR_NOT_IMPLEMENTED;
+  return result;
+}
+static kit_status_t kit_xml_append_text_(str_builder_t *buf,
+                                         xml_t         *xml) {
+  assert(buf != NULL);
+  assert(xml != NULL);
+  i64 n = buf->size;
+  DA_RESIZE(*buf, n + xml->text.size);
+  assert(buf->size == n + xml->text.size);
+  if (buf->size != n + xml->text.size)
+    return KIT_ERROR_BAD_ALLOC;
+  memcpy(buf->values + n, xml->text.values, xml->text.size);
+  for (i64 i = 0; i < xml->children.size; i++) {
+    kit_status_t s = kit_xml_append_text_(buf,
+                                          xml->children.values + i);
+    if (s != KIT_OK)
+      return s;
+    str_t tail = WRAP_STR(xml->children.values[i].tail);
+    if (tail.size <= 0)
+      continue;
+    n = buf->size;
+    DA_RESIZE(*buf, n + tail.size);
+    assert(buf->size == n + tail.size);
+    if (buf->size != n + tail.size)
+      return KIT_ERROR_BAD_ALLOC;
+    memcpy(buf->values + n, tail.values, tail.size);
+  }
+  return KIT_OK;
+}
+kit_xml_text_t kit_xml_full_text(kit_xml_t       *xml,
+                                 kit_allocator_t *alloc) {
+  kit_xml_text_t res;
+  res.status = KIT_OK;
+  DA_INIT(res.text, 0, alloc);
+  if (xml != NULL)
+    res.status = kit_xml_append_text_(&res.text, xml);
+  else
+    res.status = KIT_ERROR_INVALID_ARGUMENT;
+  return res;
+}
+void kit_xml_destroy(kit_xml_t *xml) {
+  assert(xml != NULL);
+  if (xml == NULL)
+    return;
+  for (i64 i = 0; i < xml->properties.size; i++) {
+    DA_DESTROY(xml->properties.values[i].name);
+    DA_DESTROY(xml->properties.values[i].value);
+  }
+  for (i64 i = 0; i < xml->children.size; i++)
+    kit_xml_destroy(xml->children.values + i);
+  DA_DESTROY(xml->tag);
+  DA_DESTROY(xml->text);
+  DA_DESTROY(xml->tail);
+  DA_DESTROY(xml->properties);
+  DA_DESTROY(xml->children);
+}
 #endif
 #endif