Captures point to string positions using indices

That uses 4 bytes (uint) instead of 8 (char*); the size of the
structure 'Capture' reduces from 16 to 8 bytes in 64-bit machines.

1 files changed, 1 insertions, 0 deletions

diff --git a/lptree.c b/lptree.c
index 330471a..475b0c3 100644
--- a/lptree.c
+++ b/lptree.c
@@ -1253,6 +1253,7 @@ static int lp_match (lua_State *L) {
   const char *s = luaL_checklstring(L, SUBJIDX, &l);
   size_t i = initposition(L, l);
   int ptop = lua_gettop(L);
+  luaL_argcheck(L, l < MAXINDT, SUBJIDX, "subject too long");
   lua_pushnil(L);  /* initialize subscache */
   lua_pushlightuserdata(L, capture);  /* initialize caplistidx */
   lua_getuservalue(L, 1);  /* initialize ktableidx */