问题描述
我尝试使用 string.find(中国",中")
.当我开发我的cocos-lua游戏时,它在PC上成功,但在Android上失败.
I try to use string.find("中国", "中")
. It successed on PC but failed on Android when I develop my cocos-lua game.
在Android上, string.find
返回 nil
on Android, string.find
return nil
首先,我认为它们的编码可能有所不同,所以我尝试打印出它们的字节.
Fristly, I think their encoding may be diffent, so I try to print out their byte.
在Android上:text1:中国",text2:中".
on Android: text1: "中国", text2:"中".
local text1 = self.__editBox2:getText()
local text2 = self.__editBox3:getText()
local code1 = ""
for i = 1, string.len(text1) do
code1 = code1 .. "-" .. tostring(string.byte(text1, i))
end
local code2 = ""
for i = 1, string.len(text2) do
code2 = code2 .. "-" .. tostring(string.byte(text1, i))
end
self.__editBox2:setText(code1)
self.__editBox3:setText(code2)
local a, b = string.find(text1, text2)
local data = tostring(a) .. ":" .. tostring(b)
self.__editBox1:setText(data)
text1:
228-184-173-229-155-189
text2:
228-184-173
答案仍然是:
nil:nil
PS: string.find
static int str_find_aux (lua_State *L, int find) {
size_t l1, l2;
const char *s = luaL_checklstring(L, 1, &l1);
const char *p = luaL_checklstring(L, 2, &l2);
ptrdiff_t init = posrelat(luaL_optinteger(L, 3, 1), l1) - 1;
if (init < 0) init = 0;
else if ((size_t)(init) > l1) init = (ptrdiff_t)l1;
if (find && (lua_toboolean(L, 4) || /* explicit request? */
strpbrk(p, SPECIALS) == NULL)) { /* or no special characters? */
/* do a plain search */
const char *s2 = lmemfind(s+init, l1-init, p, l2);
if (s2) {
lua_pushinteger(L, s2-s+1);
lua_pushinteger(L, s2-s+l2);
return 2;
}
}
else {
MatchState ms;
int anchor = (*p == '^') ? (p++, 1) : 0;
const char *s1=s+init;
ms.L = L;
ms.src_init = s;
ms.src_end = s+l1;
do {
const char *res;
ms.level = 0;
if ((res=match(&ms, s1, p)) != NULL) {
if (find) {
lua_pushinteger(L, s1-s+1); /* start */
lua_pushinteger(L, res-s); /* end */
return push_captures(&ms, NULL, 0) + 2;
}
else
return push_captures(&ms, s1, res);
}
} while (s1++ < ms.src_end && !anchor);
}
lua_pushnil(L); /* not found */
return 1;
}
static int str_find (lua_State *L) {
return str_find_aux(L, 1);
}
推荐答案
Lua没有对开箱即用的unicode字符的适当支持,但是有很好的库可以解决这个问题.我从来没有使用过cocos2d,我不确定他们是否有任何附加组件可以解决这个问题.但是您可以尝试使用以下一种: https://luarocks.org/modules/xavier-wang/luautf8.我曾经成功使用过一次.希望这会有所帮助!
Lua does not have proper support to unicode characters out of the box, but there are good libraries that will fix that. I have never used cocos2d and I'm unsure if they have any add-ons to deal with this. But you could try using this one:https://luarocks.org/modules/xavier-wang/luautf8. I have used it with success once. Hope this helps!
这篇关于string.find在Android中无法显示中文字符,但在开发cocos-lua游戏时在PC上成功的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!