553   const char *src;  in gmatch_aux()  local
557   for (src = s + (size_t)lua_tointeger(L, lua_upvalueindex(3));  in gmatch_aux()
558        src <= ms.src_end;  in gmatch_aux()
559        src++) {  in gmatch_aux()
562     if ((e = match(&ms, src, p)) != NULL) {  in gmatch_aux()
564       if (e == src) newstart++;  /* empty match? go at least one position */  in gmatch_aux()
567       return push_captures(&ms, src, e);  in gmatch_aux()
646   const char *src = luaL_checklstring(L, 1, &srcl);  in str_gsub()  local
659   ms.src_init = src;  in str_gsub()
660   ms.src_end = src+srcl;  in str_gsub()
664     e = match(&ms, src, p);  in str_gsub()
667       add_value(&ms, &b, src, e);  in str_gsub()
669     if (e && e>src) /* non empty match? */  in str_gsub()
670       src = e;  /* skip it */  in str_gsub()
671     else if (src < ms.src_end)  in str_gsub()
672       luaL_addchar(&b, *src++);  in str_gsub()
676   luaL_addlstring(&b, src, ms.src_end-src);  in str_gsub()