Add 'cmark/' from commit '64efa3b3b3d35f2ffb604b57a8a9c89047cb420b'

git-subtree-dir: cmark
git-subtree-mainline: 6bf7c5ce92ff6237c0b17c332873805018812b40
git-subtree-split: 64efa3b3b3d35f2ffb604b57a8a9c89047cb420b

1 files changed, 74 insertions, 0 deletions

diff --git a/cmark/src/buffer.h b/cmark/src/buffer.h
new file mode 100644
index 0000000000..e6a085724c
--- /dev/null
+++ b/cmark/src/buffer.h
@@ -0,0 +1,74 @@
+#ifndef CMARK_BUFFER_H
+#define CMARK_BUFFER_H
+
+#include <limits.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "cmark.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef int32_t bufsize_t;
+
+typedef struct {
+  cmark_mem *mem;
+  unsigned char *ptr;
+  bufsize_t asize, size;
+} cmark_strbuf;
+
+extern unsigned char cmark_strbuf__initbuf[];
+
+#define CMARK_BUF_INIT(mem)                                                    \
+  { mem, cmark_strbuf__initbuf, 0, 0 }
+
+/**
+ * Initialize a cmark_strbuf structure.
+ *
+ * For the cases where CMARK_BUF_INIT cannot be used to do static
+ * initialization.
+ */
+void cmark_strbuf_init(cmark_mem *mem, cmark_strbuf *buf,
+                       bufsize_t initial_size);
+
+/**
+ * Grow the buffer to hold at least `target_size` bytes.
+ */
+void cmark_strbuf_grow(cmark_strbuf *buf, bufsize_t target_size);
+
+void cmark_strbuf_free(cmark_strbuf *buf);
+
+unsigned char *cmark_strbuf_detach(cmark_strbuf *buf);
+
+/*
+static inline const char *cmark_strbuf_cstr(const cmark_strbuf *buf) {
+ return (char *)buf->ptr;
+}
+*/
+
+#define cmark_strbuf_at(buf, n) ((buf)->ptr[n])
+
+void cmark_strbuf_set(cmark_strbuf *buf, const unsigned char *data,
+                      bufsize_t len);
+void cmark_strbuf_putc(cmark_strbuf *buf, int c);
+void cmark_strbuf_put(cmark_strbuf *buf, const unsigned char *data,
+                      bufsize_t len);
+void cmark_strbuf_puts(cmark_strbuf *buf, const char *string);
+void cmark_strbuf_clear(cmark_strbuf *buf);
+
+void cmark_strbuf_drop(cmark_strbuf *buf, bufsize_t n);
+void cmark_strbuf_truncate(cmark_strbuf *buf, bufsize_t len);
+void cmark_strbuf_rtrim(cmark_strbuf *buf);
+void cmark_strbuf_trim(cmark_strbuf *buf);
+void cmark_strbuf_normalize_whitespace(cmark_strbuf *s);
+void cmark_strbuf_unescape(cmark_strbuf *s);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif