1 files changed, 69 insertions, 0 deletions
diff --git a/cmark/src/chunk.h b/cmark/src/chunk.h
new file mode 100644
index 0000000000..54c28f8b82
--- /dev/null
+++ b/cmark/src/chunk.h
@@ -0,0 +1,69 @@
+#ifndef CMARK_CHUNK_H
+#define CMARK_CHUNK_H
+
+#include <string.h>
+#include <stdlib.h>
+#include <assert.h>
+#include "cmark.h"
+#include "buffer.h"
+#include "cmark_ctype.h"
+
+#define CMARK_CHUNK_EMPTY                                                      \
+  { NULL, 0 }
+
+typedef struct {
+  const unsigned char *data;
+  bufsize_t len;
+} cmark_chunk;
+
+// NOLINTNEXTLINE(clang-diagnostic-unused-function)
+static inline void cmark_chunk_free(cmark_chunk *c) {
+  c->data = NULL;
+  c->len = 0;
+}
+
+static inline void cmark_chunk_ltrim(cmark_chunk *c) {
+  while (c->len && cmark_isspace(c->data[0])) {
+    c->data++;
+    c->len--;
+  }
+}
+
+static inline void cmark_chunk_rtrim(cmark_chunk *c) {
+  while (c->len > 0) {
+    if (!cmark_isspace(c->data[c->len - 1]))
+      break;
+
+    c->len--;
+  }
+}
+
+// NOLINTNEXTLINE(clang-diagnostic-unused-function)
+static inline void cmark_chunk_trim(cmark_chunk *c) {
+  cmark_chunk_ltrim(c);
+  cmark_chunk_rtrim(c);
+}
+
+// NOLINTNEXTLINE(clang-diagnostic-unused-function)
+static inline bufsize_t cmark_chunk_strchr(cmark_chunk *ch, int c,
+                                           bufsize_t offset) {
+  const unsigned char *p =
+      (unsigned char *)memchr(ch->data + offset, c, ch->len - offset);
+  return p ? (bufsize_t)(p - ch->data) : ch->len;
+}
+
+// NOLINTNEXTLINE(clang-diagnostic-unused-function)
+static inline cmark_chunk cmark_chunk_literal(const char *data) {
+  bufsize_t len = data ? (bufsize_t)strlen(data) : 0;
+  cmark_chunk c = {(unsigned char *)data, len};
+  return c;
+}
+
+// NOLINTNEXTLINE(clang-diagnostic-unused-function)
+static inline cmark_chunk cmark_chunk_dup(const cmark_chunk *ch, bufsize_t pos,
+                                          bufsize_t len) {
+  cmark_chunk c = {ch->data + pos, len};
+  return c;
+}
+
+#endif