1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
#include "AppHdr.h"
#include "clua.h"
#include "l_libs.h"
//////////////////////////////////////////////////////////////////////
// Miscellaneous globals
#define PATTERN_FLUSH_CEILING 100
typedef std::map<std::string, text_pattern> pattern_map;
static pattern_map pattern_cache;
static text_pattern &get_text_pattern(const std::string &s, bool checkcase)
{
pattern_map::iterator i = pattern_cache.find(s);
if (i != pattern_cache.end())
return i->second;
if (pattern_cache.size() > PATTERN_FLUSH_CEILING)
pattern_cache.clear();
pattern_cache[s] = text_pattern(s, !checkcase);
return (pattern_cache[s]);
}
static int lua_pmatch(lua_State *ls)
{
const char *pattern = luaL_checkstring(ls, 1);
if (!pattern)
return (0);
const char *text = luaL_checkstring(ls, 2);
if (!text)
return (0);
bool checkcase = true;
if (lua_isboolean(ls, 3))
checkcase = lua_toboolean(ls, 3);
text_pattern &tp = get_text_pattern(pattern, checkcase);
lua_pushboolean( ls, tp.matches(text) );
return (1);
}
void cluaopen_globals(lua_State *ls)
{
lua_pushcfunction(ls, lua_pmatch);
lua_setglobal(ls, "pmatch");
}
|
