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) i
** inserts a new key into a hash table; first, check whether key's main ** position is free. If not, check whether colliding node is in its main ** position or not: if it is not, move colliding node to an empty place and ** put new key in its main position; otherwise (collid...
In particular,you can use next(t) to check whether a table is empty. The order in which the indices are enumerated is not specified, evenfor numeric indices. (To traverse a table in numerical order, use a numerical for.) The behavior of next is undefined if, during the traversal, you...
2)table访问 我们要讨论的第二部分内容,就是table的访问。不论如何,首先我们都要先处理primaryexp,这是table的本体(即table自身),而访问处理也是针对它来进行的。从上面的EBNF范式来看,table的组织,可以抽象为以下的形式: primaryexp { .NAME | '[' expr ']' } 直接通过’.‘来访问,和通过方括号来访问,现在...
lua-nginx-module : 该模块是 OpenResty 的核心组件,目录是将lua的功能嵌入到Nginx http服务器中。 lua-resty-redis : 该模块是在 OpenResty 项目下基于 cosocket API 的 ngx_lua 的 Lua redis 客户端驱动。 温馨提示: 如果不是现有业务大量使用Nginx进行承载不能直接替换其它优秀的解决方案,只能一步一步来,从而...
}// 检查脚本是否出错if(err) {/* Error object is a table of the following format: * {err='<error msg>', source='<source file>', line=<line>} * We can construct the error message from this information */if(!lua_istable(lua, -1)) {/* Should not happened, and we should consid...
Change "v1" to "v2" in test.lua, then hotfix module test and call func() again. The result shows that func() has been updated, but the count is kept. > hotfix = require("hotfix.hotfix") > hotfix.hotfix_module("test") table: 0000000002752060 > test.func() v2 > test.count 2 ...
if not results then ngx.say("failed to commit the pipelined requests: ", err) return end -- 结果遍历 for i, res in ipairs(results) do if type(res) == "table" then if res[1] == false then ngx.say("failed to run command ", i, ": ", res[2],"<br/>") ...
if (!lua_istable(_L, -1)) { lua_pop(_L, 1); return 1; } // Stack: errmsg, debug, traceback lua_getfield(_L, -1, "traceback"); if (!lua_isfunction(_L, -1)) { lua_pop(_L, 2); return 1;
elseif rawget(cObject, "_className") then if "string" == type(cObject._className) then strName = strName .. "[class:" .. cObject._className .. "]" end end -- Check if table is _G. if cObject == _G then strName = strName .. "[_G]" end -- Get metatable...