AutoHotkey:为什么赋值、InsertAt、长度和 MaxIndex 对 RegExMatch() 生成的数组不起作用?

AutoHotkey: Why are assignment, InsertAt, length, and MaxIndex, not working on an array generated by RegExMatch()?

在 AutoHotkey 中,RegExMatch() in mode 3 (match object) puts the matched strings in an array. I can get the matches using array[index], and I can get the number of matches using .count()。但是我有以下问题:

此行为由以下脚本演示:

; "TestScript.ahk"

; Use a regular expression to read data from a string, then test the behavior of the resulting array.

#NoEnv
#Warn

^+z::                           ; Hotkey for this script: Ctrl-shift-Z
sDataString := "A1B2C3"
nFoundPosn := RegExMatch(sDataString, "O)A(\d)B(\d)C(\d)", asData)
asData[2] := "4"
asData.InsertAt(3, "5")
MsgBox % "I expect the following to produce:`n"
        . "{1, 4, 5, 3}`n"
        . ">4<, >4<, >4<`n"
        . "`n"
        . "but instead I get:`n"
        . "{" . asData[1] . ", " . asData[2] . ", " . asData[3] . ", " . asData[4] . "}`n"
        . ">" . asData.count() . "<, >" . asData.length() . "<, >" . asData.MaxIndex() . "<"
return

产生以下输出:

显然,对于正在生成的数组以及如何使用它,我有一些不了解的地方。赋值和插入不起作用的事实向我表明数组变量是一个指针,但我在上面链接的文档中没有看到任何关于它的信息,所以如果它是一个指针,我不知道如何访问它指向的对象。我做错了什么,或者我误解了什么?

你遇到了什么有趣的事情!我以为你肯定犯了错误,但我错了。似乎唯一可用的属性是那些 listed in the help documentation for that mode. Annoyingly, it cannot be treated as a standard object; you can't even clone it to do useful work with it. As highly-esteemed AHK forum user jeeswg found (here),唯一的选择是循环遍历匹配对象并从中构建一个数组,如下所示。

^+z::
asDataNew := []
sDataString := "A1B2C3"
nFoundPosn := RegExMatch(sDataString, "O)A(\d)B(\d)C(\d)", asData)

Loop , % asData.count()
    asDataNew[A_Index] := asData[A_Index]

asDataNew[2] := "4"
asDataNew.InsertAt(3, "5")
MsgBox % "I expect the following to produce:`n"
        . "{1, 4, 5, 3}`n"
        . ">4<, >4<, >4<`n"
        . "`n"
        . "but instead I get:`n"
        . "{" . asData.1 . ", " . asData[2] . ", " . asData[3] . ", " . asData[4] . "}`n"
        . ">" . asData.count() . "<, >" . asData.length() . "<, >" . asData.MaxIndex() . "<`n"
        . "`n"
        . "With hard copy I get:`n"
        . "{" . asDataNew.1 . ", " . asDataNew[2] . ", " . asDataNew[3] . ", " . asDataNew[4] . "}`n"
        . ">" . asDataNew.count() . "<, >" . asDataNew.length() . "<, >" . asDataNew.MaxIndex() . "<"
return