path: root/src/cmark.h

#ifndef _CMARK_H_
#define _CMARK_H_

#include <stdbool.h>
#include <stdio.h>
#include "buffer.h"
#include "chunk.h"
#include "references.h"

#ifdef __cplusplus
extern "C" {
#endif

#define CMARK_VERSION "0.1"
#define CMARK_CODE_INDENT 4

#define CMARK_MAX_LINK_LABEL_LENGTH 1000

struct cmark_node_inl {
    enum {
        CMARK_INL_STRING,
        CMARK_INL_SOFTBREAK,
        CMARK_INL_LINEBREAK,
        CMARK_INL_CODE,
        CMARK_INL_RAW_HTML,
        CMARK_INL_EMPH,
        CMARK_INL_STRONG,
        CMARK_INL_LINK,
        CMARK_INL_IMAGE
    } tag;
    union {
        cmark_chunk literal;
        struct cmark_node_inl *inlines;
        struct {
            struct cmark_node_inl *label;
            unsigned char *url;
            unsigned char *title;
        } linkable;
    } content;
    struct cmark_node_inl *next;
};

typedef struct cmark_node_inl cmark_node_inl;

// Types for blocks
struct cmark_ListData {
    enum {
        bullet,
        ordered
    }  list_type;
    int               marker_offset;
    int               padding;
    int               start;
    enum {
        period,
        parens
    } delimiter;
    unsigned char     bullet_char;
    bool              tight;
};

struct cmark_FencedCodeData {
    int               fence_length;
    int               fence_offset;
    unsigned char     fence_char;
    cmark_strbuf      info;
};

struct cmark_node_block {
    enum {
        CMARK_BLOCK_DOCUMENT,
        CMARK_BLOCK_BQUOTE,
        CMARK_BLOCK_LIST,
        CMARK_BLOCK_LIST_ITEM,
        CMARK_BLOCK_FENCED_CODE,
        CMARK_BLOCK_INDENTED_CODE,
        CMARK_BLOCK_HTML,
        CMARK_BLOCK_PARAGRAPH,
        CMARK_BLOCK_ATX_HEADER,
        CMARK_BLOCK_SETEXT_HEADER,
        CMARK_BLOCK_HRULE,
        CMARK_BLOCK_REFERENCE_DEF
    } tag;
    int start_line;
    int start_column;
    int end_line;
    bool open;
    bool last_line_blank;
    struct cmark_node_block* children;
    struct cmark_node_block* last_child;
    struct cmark_node_block* parent;
    struct cmark_node_block* top;
    cmark_strbuf string_content;
    cmark_node_inl* inline_content;

    union  {
        struct cmark_ListData list;
        struct cmark_FencedCodeData code;
        struct {
            int level;
        } header;
        struct {
            cmark_reference_map *refmap;
        } document;
    } as;

    struct cmark_node_block *next;
    struct cmark_node_block *prev;
};

typedef struct cmark_node_block cmark_node_block;

cmark_node_block *cmark_parse_document(const unsigned char *buffer, size_t len);
cmark_node_block *cmark_parse_file(FILE *f);

void cmark_free_nodes(cmark_node_block *e);

void cmark_debug_print(cmark_node_block *root);
void cmark_render_html(cmark_strbuf *html, cmark_node_block *root);

unsigned char *cmark_markdown_to_html(unsigned char *text, int len);

#ifndef CMARK_NO_SHORT_NAMES
  #define VERSION                   CMARK_VERSION
  #define CODE_INDENT               CMARK_CODE_INDENT
  #define MAX_LINK_LABEL_LENGTH     CMARK_MAX_LINK_LABEL_LENGTH
  #define node_inl                  cmark_node_inl
  #define INL_STRING                CMARK_INL_STRING
  #define INL_SOFTBREAK             CMARK_INL_SOFTBREAK
  #define INL_LINEBREAK             CMARK_INL_LINEBREAK
  #define INL_CODE                  CMARK_INL_CODE
  #define INL_RAW_HTML              CMARK_INL_RAW_HTML
  #define INL_EMPH                  CMARK_INL_EMPH
  #define INL_STRONG                CMARK_INL_STRONG
  #define INL_LINK                  CMARK_INL_LINK
  #define INL_IMAGE                 CMARK_INL_IMAGE
  #define ListData                  cmark_ListData
  #define FencedCodeData            cmark_FencedCodeData
  #define node_block                cmark_node_block
  #define BLOCK_DOCUMENT            CMARK_BLOCK_DOCUMENT
  #define BLOCK_BQUOTE              CMARK_BLOCK_BQUOTE
  #define BLOCK_LIST                CMARK_BLOCK_LIST
  #define BLOCK_LIST_ITEM           CMARK_BLOCK_LIST_ITEM
  #define BLOCK_FENCED_CODE         CMARK_BLOCK_FENCED_CODE
  #define BLOCK_INDENTED_CODE       CMARK_BLOCK_INDENTED_CODE
  #define BLOCK_HTML                CMARK_BLOCK_HTML
  #define BLOCK_PARAGRAPH           CMARK_BLOCK_PARAGRAPH
  #define BLOCK_ATX_HEADER          CMARK_BLOCK_ATX_HEADER
  #define BLOCK_SETEXT_HEADER       CMARK_BLOCK_SETEXT_HEADER
  #define BLOCK_HRULE               CMARK_BLOCK_HRULE
  #define BLOCK_REFERENCE_DEF       CMARK_BLOCK_REFERENCE_DEF
#endif

#ifdef __cplusplus
}
#endif

#endif