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219 lines
6.6 KiB
219 lines
6.6 KiB
#ifndef _MARKDOWN_D
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#define _MARKDOWN_D
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#include "cstring.h"
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/* reference-style links (and images) are stored in an array
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* of footnotes.
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*/
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typedef struct footnote {
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Cstring tag; /* the tag for the reference link */
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Cstring link; /* what this footnote points to */
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Cstring title; /* what it's called (TITLE= attribute) */
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int height, width; /* dimensions (for image link) */
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int dealloc; /* deallocation needed? */
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int refnumber;
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int flags;
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#define EXTRA_BOOKMARK 0x01
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#define REFERENCED 0x02
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} Footnote;
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/* each input line is read into a Line, which contains the line,
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* the offset of the first non-space character [this assumes
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* that all tabs will be expanded to spaces!], and a pointer to
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* the next line.
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*/
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typedef enum { chk_text, chk_code,
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chk_hr, chk_dash,
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chk_tilde, chk_backtick,
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chk_equal } line_type;
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typedef struct line {
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Cstring text;
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struct line *next;
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int dle; /* leading indent on the line */
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int flags; /* special attributes for this line */
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#define PIPECHAR 0x01 /* line contains a | */
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#define CHECKED 0x02
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line_type kind;
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int count;
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} Line;
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/* a paragraph is a collection of Lines, with links to the next paragraph
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* and (if it's a QUOTE, UL, or OL) to the reparsed contents of this
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* paragraph.
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*/
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typedef struct paragraph {
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struct paragraph *next; /* next paragraph */
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struct paragraph *down; /* recompiled contents of this paragraph */
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struct line *text; /* all the text in this paragraph */
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char *ident; /* %id% tag for QUOTE */
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char *lang; /* lang attribute for CODE */
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enum { WHITESPACE=0, CODE, QUOTE, MARKUP,
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HTML, STYLE, DL, UL, OL, AL, LISTITEM,
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HDR, HR, TABLE, SOURCE } typ;
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enum { IMPLICIT=0, PARA, CENTER} align;
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int hnumber; /* <Hn> for typ == HDR */
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} Paragraph;
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enum { ETX, SETEXT }; /* header types */
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typedef struct block {
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enum { bTEXT, bSTAR, bUNDER } b_type;
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int b_count;
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char b_char;
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Cstring b_text;
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Cstring b_post;
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} block;
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typedef STRING(block) Qblock;
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typedef char* (*mkd_callback_t)(const char*, const int, void*);
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typedef void (*mkd_free_t)(char*, void*);
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typedef struct callback_data {
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void *e_data; /* private data for callbacks */
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mkd_callback_t e_url; /* url edit callback */
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mkd_callback_t e_flags; /* extra href flags callback */
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mkd_free_t e_free; /* edit/flags callback memory deallocator */
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} Callback_data;
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struct escaped {
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char *text;
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struct escaped *up;
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} ;
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/* a magic markdown io thing holds all the data structures needed to
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* do the backend processing of a markdown document
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*/
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typedef struct mmiot {
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Cstring out;
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Cstring in;
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Qblock Q;
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int isp;
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int reference;
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struct escaped *esc;
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char *ref_prefix;
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STRING(Footnote) *footnotes;
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DWORD flags;
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#define MKD_NOLINKS 0x00000001
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#define MKD_NOIMAGE 0x00000002
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#define MKD_NOPANTS 0x00000004
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#define MKD_NOHTML 0x00000008
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#define MKD_STRICT 0x00000010
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#define MKD_TAGTEXT 0x00000020
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#define MKD_NO_EXT 0x00000040
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#define MKD_CDATA 0x00000080
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#define MKD_NOSUPERSCRIPT 0x00000100
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#define MKD_NORELAXED 0x00000200
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#define MKD_NOTABLES 0x00000400
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#define MKD_NOSTRIKETHROUGH 0x00000800
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#define MKD_TOC 0x00001000
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#define MKD_1_COMPAT 0x00002000
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#define MKD_AUTOLINK 0x00004000
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#define MKD_SAFELINK 0x00008000
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#define MKD_NOHEADER 0x00010000
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#define MKD_TABSTOP 0x00020000
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#define MKD_NODIVQUOTE 0x00040000
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#define MKD_NOALPHALIST 0x00080000
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#define MKD_NODLIST 0x00100000
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#define MKD_EXTRA_FOOTNOTE 0x00200000
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#define MKD_NOSTYLE 0x00400000
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#define IS_LABEL 0x08000000
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#define USER_FLAGS 0x0FFFFFFF
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#define INPUT_MASK (MKD_NOHEADER|MKD_TABSTOP)
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Callback_data *cb;
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} MMIOT;
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/*
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* the mkdio text input functions return a document structure,
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* which contains a header (retrieved from the document if
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* markdown was configured * with the * --enable-pandoc-header
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* and the document begins with a pandoc-style header) and the
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* root of the linked list of Lines.
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*/
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typedef struct document {
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int magic; /* "I AM VALID" magic number */
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#define VALID_DOCUMENT 0x19600731
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Line *title;
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Line *author;
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Line *date;
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ANCHOR(Line) content; /* uncompiled text, not valid after compile() */
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Paragraph *code; /* intermediate code generated by compile() */
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int compiled; /* set after mkd_compile() */
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int html; /* set after (internal) htmlify() */
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int tabstop; /* for properly expanding tabs (ick) */
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char *ref_prefix;
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MMIOT *ctx; /* backend buffers, flags, and structures */
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Callback_data cb; /* callback functions & private data */
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} Document;
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/*
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* economy FILE-type structure for pulling characters out of a
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* fixed-length string.
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*/
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struct string_stream {
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const char *data; /* the unread data */
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int size; /* and how much is there? */
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} ;
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extern int mkd_firstnonblank(Line *);
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extern int mkd_compile(Document *, DWORD);
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extern int mkd_document(Document *, char **);
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extern int mkd_generatehtml(Document *, FILE *);
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extern int mkd_css(Document *, char **);
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extern int mkd_generatecss(Document *, FILE *);
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#define mkd_style mkd_generatecss
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extern int mkd_xml(char *, int , char **);
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extern int mkd_generatexml(char *, int, FILE *);
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extern void mkd_cleanup(Document *);
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extern int mkd_line(char *, int, char **, DWORD);
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extern int mkd_generateline(char *, int, FILE*, DWORD);
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#define mkd_text mkd_generateline
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extern void mkd_basename(Document*, char *);
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typedef int (*mkd_sta_function_t)(const int,const void*);
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extern void mkd_string_to_anchor(char*,int, mkd_sta_function_t, void*, int);
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extern Document *mkd_in(FILE *, DWORD);
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extern Document *mkd_string(const char*,int, DWORD);
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extern Document *gfm_in(FILE *, DWORD);
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extern Document *gfm_string(const char*,int, DWORD);
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extern void mkd_initialize();
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extern void mkd_shlib_destructor();
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extern void mkd_ref_prefix(Document*, char*);
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/* internal resource handling functions.
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*/
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extern void ___mkd_freeLine(Line *);
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extern void ___mkd_freeLines(Line *);
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extern void ___mkd_freeParagraph(Paragraph *);
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extern void ___mkd_freefootnote(Footnote *);
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extern void ___mkd_freefootnotes(MMIOT *);
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extern void ___mkd_initmmiot(MMIOT *, void *);
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extern void ___mkd_freemmiot(MMIOT *, void *);
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extern void ___mkd_freeLineRange(Line *, Line *);
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extern void ___mkd_xml(char *, int, FILE *);
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extern void ___mkd_reparse(char *, int, int, MMIOT*, char*);
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extern void ___mkd_emblock(MMIOT*);
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extern void ___mkd_tidy(Cstring *);
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extern Document *__mkd_new_Document();
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extern void __mkd_enqueue(Document*, Cstring *);
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extern void __mkd_header_dle(Line *);
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extern int __mkd_io_strget(struct string_stream *);
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#endif/*_MARKDOWN_D*/
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