uregex_open

// icuin.dll
#include <windows.h>

URegularExpression* uregex_open(
    const WORD* pattern,
    INT patternLength,
    DWORD flags,
    UParseError* pe,
    UErrorCode* status
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function uregex_open(
    ByRef pattern As UShort,   ' WORD*
    patternLength As Integer,   ' INT
    flags As UInteger,   ' DWORD
    pe As IntPtr,   ' UParseError* in/out
    ByRef status As Integer   ' UErrorCode* in/out
) As IntPtr
End Function

' pattern : WORD*
' patternLength : INT
' flags : DWORD
' pe : UParseError* in/out
' status : UErrorCode* in/out
Declare PtrSafe Function uregex_open Lib "icuin" ( _
    ByRef pattern As Integer, _
    ByVal patternLength As Long, _
    ByVal flags As Long, _
    ByVal pe As LongPtr, _
    ByRef status As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

uregex_open = ctypes.cdll.icuin.uregex_open
uregex_open.restype = ctypes.c_void_p
uregex_open.argtypes = [
    ctypes.POINTER(ctypes.c_ushort),  # pattern : WORD*
    ctypes.c_int,  # patternLength : INT
    wintypes.DWORD,  # flags : DWORD
    ctypes.c_void_p,  # pe : UParseError* in/out
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
uregex_open = Fiddle::Function.new(
  lib['uregex_open'],
  [
    Fiddle::TYPE_VOIDP,  # pattern : WORD*
    Fiddle::TYPE_INT,  # patternLength : INT
    -Fiddle::TYPE_INT,  # flags : DWORD
    Fiddle::TYPE_VOIDP,  # pe : UParseError* in/out
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn uregex_open(
        pattern: *const u16,  // WORD*
        patternLength: i32,  // INT
        flags: u32,  // DWORD
        pe: *mut UParseError,  // UParseError* in/out
        status: *mut i32  // UErrorCode* in/out
    ) -> *mut isize;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuin.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr uregex_open(ref ushort pattern, int patternLength, uint flags, IntPtr pe, ref int status);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuin_uregex_open' -Namespace Win32 -PassThru
# $api::uregex_open(pattern, patternLength, flags, pe, status)

#uselib "icuin.dll"
#func global uregex_open "uregex_open" sptr, sptr, sptr, sptr, sptr
; uregex_open varptr(pattern), patternLength, flags, varptr(pe), status   ; 戻り値は stat
; pattern : WORD* -> "sptr"
; patternLength : INT -> "sptr"
; flags : DWORD -> "sptr"
; pe : UParseError* in/out -> "sptr"
; status : UErrorCode* in/out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

#uselib "icuin.dll"
#cfunc global uregex_open "uregex_open" var, int, int, var, int
; res = uregex_open(pattern, patternLength, flags, pe, status)
; pattern : WORD* -> "var"
; patternLength : INT -> "int"
; flags : DWORD -> "int"
; pe : UParseError* in/out -> "var"
; status : UErrorCode* in/out -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; URegularExpression* uregex_open(WORD* pattern, INT patternLength, DWORD flags, UParseError* pe, UErrorCode* status)
#uselib "icuin.dll"
#cfunc global uregex_open "uregex_open" var, int, int, var, int
; res = uregex_open(pattern, patternLength, flags, pe, status)
; pattern : WORD* -> "var"
; patternLength : INT -> "int"
; flags : DWORD -> "int"
; pe : UParseError* in/out -> "var"
; status : UErrorCode* in/out -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	icuin = windows.NewLazySystemDLL("icuin.dll")
	procuregex_open = icuin.NewProc("uregex_open")
)

// pattern (WORD*), patternLength (INT), flags (DWORD), pe (UParseError* in/out), status (UErrorCode* in/out)
r1, _, err := procuregex_open.Call(
	uintptr(pattern),
	uintptr(patternLength),
	uintptr(flags),
	uintptr(pe),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // URegularExpression*

function uregex_open(
  pattern: Pointer;   // WORD*
  patternLength: Integer;   // INT
  flags: DWORD;   // DWORD
  pe: Pointer;   // UParseError* in/out
  status: Pointer   // UErrorCode* in/out
): Pointer; cdecl;
  external 'icuin.dll' name 'uregex_open';

result := DllCall("icuin\uregex_open"
    , "Ptr", pattern   ; WORD*
    , "Int", patternLength   ; INT
    , "UInt", flags   ; DWORD
    , "Ptr", pe   ; UParseError* in/out
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Ptr")   ; return: URegularExpression*

●uregex_open(pattern, patternLength, flags, pe, status) = DLL("icuin.dll", "void* uregex_open(void*, int, dword, void*, void*)")
# 呼び出し: uregex_open(pattern, patternLength, flags, pe, status)
# pattern : WORD* -> "void*"
# patternLength : INT -> "int"
# flags : DWORD -> "dword"
# pe : UParseError* in/out -> "void*"
# status : UErrorCode* in/out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。
# ※cdecl関数。DLL()宣言はstdcall前提。cdeclは EXEC_PTR(`cdecl`,…) を使用。