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-rwxr-xr-xwrappers/wrapper.lua201
1 files changed, 201 insertions, 0 deletions
diff --git a/wrappers/wrapper.lua b/wrappers/wrapper.lua
new file mode 100755
index 0000000..11c5183
--- /dev/null
+++ b/wrappers/wrapper.lua
@@ -0,0 +1,201 @@
+#!/usr/bin/env luajit
+
+local ffi = require("ffi")
+
+cmark = ffi.load("libcmark")
+
+ffi.cdef[[
+
+ char *cmark_markdown_to_html(const char *text, int len);
+ typedef enum {
+ /* Block */
+ CMARK_NODE_DOCUMENT,
+ CMARK_NODE_BLOCK_QUOTE,
+ CMARK_NODE_LIST,
+ CMARK_NODE_LIST_ITEM,
+ CMARK_NODE_CODE_BLOCK,
+ CMARK_NODE_HTML,
+ CMARK_NODE_PARAGRAPH,
+ CMARK_NODE_HEADER,
+ CMARK_NODE_HRULE,
+ CMARK_NODE_REFERENCE_DEF,
+
+ CMARK_NODE_FIRST_BLOCK = CMARK_NODE_DOCUMENT,
+ CMARK_NODE_LAST_BLOCK = CMARK_NODE_REFERENCE_DEF,
+
+ /* Inline */
+ CMARK_NODE_TEXT,
+ CMARK_NODE_SOFTBREAK,
+ CMARK_NODE_LINEBREAK,
+ CMARK_NODE_INLINE_CODE,
+ CMARK_NODE_INLINE_HTML,
+ CMARK_NODE_EMPH,
+ CMARK_NODE_STRONG,
+ CMARK_NODE_LINK,
+ CMARK_NODE_IMAGE,
+
+ CMARK_NODE_FIRST_INLINE = CMARK_NODE_TEXT,
+ CMARK_NODE_LAST_INLINE = CMARK_NODE_IMAGE,
+ } cmark_node_type;
+
+ typedef enum {
+ CMARK_NO_LIST,
+ CMARK_BULLET_LIST,
+ CMARK_ORDERED_LIST
+ } cmark_list_type;
+
+ typedef enum {
+ CMARK_PERIOD_DELIM,
+ CMARK_PAREN_DELIM
+ } cmark_delim_type;
+
+ typedef struct cmark_node cmark_node;
+ typedef struct cmark_parser cmark_parser;
+
+ cmark_node* cmark_node_new(cmark_node_type type);
+
+ void
+ cmark_node_free(cmark_node *node);
+
+ cmark_node* cmark_node_next(cmark_node *node);
+
+ cmark_node* cmark_node_previous(cmark_node *node);
+
+ cmark_node* cmark_node_parent(cmark_node *node);
+
+ cmark_node* cmark_node_first_child(cmark_node *node);
+
+ cmark_node* cmark_node_last_child(cmark_node *node);
+
+ cmark_node_type cmark_node_get_type(cmark_node *node);
+
+ const char* cmark_node_get_string_content(cmark_node *node);
+
+ int cmark_node_set_string_content(cmark_node *node, const char *content);
+
+ int cmark_node_get_header_level(cmark_node *node);
+
+ int cmark_node_set_header_level(cmark_node *node, int level);
+
+ cmark_list_type cmark_node_get_list_type(cmark_node *node);
+
+ int cmark_node_set_list_type(cmark_node *node, cmark_list_type type);
+
+ int cmark_node_get_list_start(cmark_node *node);
+
+ int cmark_node_set_list_start(cmark_node *node, int start);
+
+ int cmark_node_get_list_tight(cmark_node *node);
+
+ int cmark_node_set_list_tight(cmark_node *node, int tight);
+
+ const char* cmark_node_get_fence_info(cmark_node *node);
+
+ int cmark_node_set_fence_info(cmark_node *node, const char *info);
+
+ const char* cmark_node_get_url(cmark_node *node);
+
+ int cmark_node_set_url(cmark_node *node, const char *url);
+
+ const char* cmark_node_get_title(cmark_node *node);
+
+ int cmark_node_set_title(cmark_node *node, const char *title);
+
+ int cmark_node_get_start_line(cmark_node *node);
+
+ int cmark_node_get_start_column(cmark_node *node);
+
+ int cmark_node_get_end_line(cmark_node *node);
+
+ void cmark_node_unlink(cmark_node *node);
+
+ int cmark_node_insert_before(cmark_node *node, cmark_node *sibling);
+
+ int cmark_node_insert_after(cmark_node *node, cmark_node *sibling);
+
+ int cmark_node_prepend_child(cmark_node *node, cmark_node *child);
+
+ int cmark_node_append_child(cmark_node *node, cmark_node *child);
+
+ cmark_parser *cmark_parser_new();
+
+ void cmark_parser_free(cmark_parser *parser);
+
+ cmark_node *cmark_parser_finish(cmark_parser *parser);
+
+ void cmark_parser_feed(cmark_parser *parser, const char *buffer, size_t len);
+
+ cmark_node *cmark_parse_document(const char *buffer, size_t len);
+
+ char *cmark_render_ast(cmark_node *root);
+
+ char *cmark_render_html(cmark_node *root);
+
+ ]]
+
+local inp = io.read("*all")
+local doc = cmark.cmark_parse_document(inp, string.len(inp))
+
+local cur = doc
+local next
+local child
+
+local walk = function(action)
+ level = 0
+ while cur ~= nil do
+ action(cur, level)
+ child = cmark.cmark_node_first_child(cur)
+ if child == nil then
+ next = cmark.cmark_node_next(cur)
+ while next == nil do
+ cur = cmark.cmark_node_parent(cur)
+ level = level - 1
+ if cur == nil then
+ break
+ else
+ next = cmark.cmark_node_next(cur)
+ end
+ end
+ cur = next
+ else
+ level = level + 1
+ cur = child
+ end
+ end
+end
+
+local type_table = {
+ 'BLOCK_QUOTE',
+ 'LIST',
+ 'LIST_ITEM',
+ 'CODE_BLOCK',
+ 'HTML',
+ 'PARAGRAPH',
+ 'HEADER',
+ 'HRULE',
+ 'REFERENCE_DEF',
+ 'TEXT',
+ 'SOFTBREAK',
+ 'LINEBREAK',
+ 'INLINE_CODE',
+ 'INLINE_HTML',
+ 'EMPH',
+ 'STRONG',
+ 'LINK',
+ 'IMAGE',
+}
+type_table[0] = 'DOCUMENT'
+
+local function print_type(node, level)
+ local t = tonumber(cmark.cmark_node_get_type(node))
+ io.write(string.rep(' ', level) .. type_table[t])
+ if t == cmark.CMARK_NODE_TEXT then
+ io.write(' ' .. ffi.string(cmark.cmark_node_get_string_content(node)))
+ end
+ io.write('\n')
+end
+
+walk(print_type)
+
+-- local html = ffi.string(cmark.cmark_render_html(doc))
+-- print(html)