silk/modules/md.c

64 lines
1.7 KiB
C
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#include "lua/lualib.h"
#include "3rd/md4c/md4c-html.h"
static void md_process_output(const MD_CHAR *buf, MD_SIZE len, void *udata)
{
lua_State *L = (lua_State *)udata;
lua_pushlstring(L, buf, len);
lua_call(L, 1, 0);
lua_pushvalue(L, -1);
}
static int l_md_to_html(lua_State *L)
{
const char *input = luaL_checkstring(L, 1);
if (input == NULL)
{
//lua_pushstring(L,"NULL markdown input string");
return 0;
}
if (!lua_isfunction(L, -1))
{
//lua_pushstring(L,"Invalid callback function");
return 0;
}
// duplicate top of the stack
lua_pushvalue(L, -1);
reset_hd_cnt();
if (md_html(input,
strlen(input),
md_process_output,
L,
MD_DIALECT_GITHUB |
MD_HTML_FLAG_VERBATIM_ENTITIES |
MD_FLAG_PERMISSIVEATXHEADERS |
MD_FLAG_NOINDENTEDCODEBLOCKS |
MD_FLAG_NOHTMLBLOCKS |
MD_FLAG_NOHTMLSPANS |
MD_FLAG_NOHTML |
MD_FLAG_COLLAPSEWHITESPACE |
MD_FLAG_PERMISSIVEURLAUTOLINKS |
MD_FLAG_PERMISSIVEWWWAUTOLINKS |
MD_FLAG_PERMISSIVEEMAILAUTOLINKS |
MD_FLAG_PERMISSIVEAUTOLINKS |
MD_FLAG_UNDERLINE,
MD_HTML_FLAG_XHTML) == -1)
{
//lua_pushstring(L,"Unable to parse markdown: md_parse() fails");
lua_pop(L,1);
return 0;
}
lua_pop(L,1);
return 1;
}
static const struct luaL_Reg _lib[] = {
{"to_html", l_md_to_html},
{NULL, NULL}};
int luaopen_md(lua_State *L)
{
luaL_newlib(L, _lib);
return 1;
}