uregex_group

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

INT uregex_group(
    URegularExpression* regexp,
    INT groupNum,
    WORD* dest,
    INT destCapacity,
    UErrorCode* status
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function uregex_group(
    ByRef regexp As IntPtr,   ' URegularExpression* in/out
    groupNum As Integer,   ' INT
    ByRef dest As UShort,   ' WORD* in/out
    destCapacity As Integer,   ' INT
    ByRef status As Integer   ' UErrorCode* in/out
) As Integer
End Function

' regexp : URegularExpression* in/out
' groupNum : INT
' dest : WORD* in/out
' destCapacity : INT
' status : UErrorCode* in/out
Declare PtrSafe Function uregex_group Lib "icuin" ( _
    ByRef regexp As LongPtr, _
    ByVal groupNum As Long, _
    ByRef dest As Integer, _
    ByVal destCapacity As Long, _
    ByRef status As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

uregex_group = ctypes.cdll.icuin.uregex_group
uregex_group.restype = ctypes.c_int
uregex_group.argtypes = [
    ctypes.c_void_p,  # regexp : URegularExpression* in/out
    ctypes.c_int,  # groupNum : INT
    ctypes.POINTER(ctypes.c_ushort),  # dest : WORD* in/out
    ctypes.c_int,  # destCapacity : INT
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
uregex_group = Fiddle::Function.new(
  lib['uregex_group'],
  [
    Fiddle::TYPE_VOIDP,  # regexp : URegularExpression* in/out
    Fiddle::TYPE_INT,  # groupNum : INT
    Fiddle::TYPE_VOIDP,  # dest : WORD* in/out
    Fiddle::TYPE_INT,  # destCapacity : INT
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_INT, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn uregex_group(
        regexp: *mut isize,  // URegularExpression* in/out
        groupNum: i32,  // INT
        dest: *mut u16,  // WORD* in/out
        destCapacity: i32,  // INT
        status: *mut i32  // UErrorCode* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuin.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern int uregex_group(ref IntPtr regexp, int groupNum, ref ushort dest, int destCapacity, ref int status);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuin_uregex_group' -Namespace Win32 -PassThru
# $api::uregex_group(regexp, groupNum, dest, destCapacity, status)

#uselib "icuin.dll"
#func global uregex_group "uregex_group" sptr, sptr, sptr, sptr, sptr
; uregex_group regexp, groupNum, varptr(dest), destCapacity, status   ; 戻り値は stat
; regexp : URegularExpression* in/out -> "sptr"
; groupNum : INT -> "sptr"
; dest : WORD* in/out -> "sptr"
; destCapacity : INT -> "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_group "uregex_group" int, int, var, int, int
; res = uregex_group(regexp, groupNum, dest, destCapacity, status)
; regexp : URegularExpression* in/out -> "int"
; groupNum : INT -> "int"
; dest : WORD* in/out -> "var"
; destCapacity : INT -> "int"
; 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。

; INT uregex_group(URegularExpression* regexp, INT groupNum, WORD* dest, INT destCapacity, UErrorCode* status)
#uselib "icuin.dll"
#cfunc global uregex_group "uregex_group" int, int, var, int, int
; res = uregex_group(regexp, groupNum, dest, destCapacity, status)
; regexp : URegularExpression* in/out -> "int"
; groupNum : INT -> "int"
; dest : WORD* in/out -> "var"
; destCapacity : INT -> "int"
; 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_group = icuin.NewProc("uregex_group")
)

// regexp (URegularExpression* in/out), groupNum (INT), dest (WORD* in/out), destCapacity (INT), status (UErrorCode* in/out)
r1, _, err := procuregex_group.Call(
	uintptr(regexp),
	uintptr(groupNum),
	uintptr(dest),
	uintptr(destCapacity),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function uregex_group(
  regexp: Pointer;   // URegularExpression* in/out
  groupNum: Integer;   // INT
  dest: Pointer;   // WORD* in/out
  destCapacity: Integer;   // INT
  status: Pointer   // UErrorCode* in/out
): Integer; cdecl;
  external 'icuin.dll' name 'uregex_group';

result := DllCall("icuin\uregex_group"
    , "Ptr", regexp   ; URegularExpression* in/out
    , "Int", groupNum   ; INT
    , "Ptr", dest   ; WORD* in/out
    , "Int", destCapacity   ; INT
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: INT

●uregex_group(regexp, groupNum, dest, destCapacity, status) = DLL("icuin.dll", "int uregex_group(void*, int, void*, int, void*)")
# 呼び出し: uregex_group(regexp, groupNum, dest, destCapacity, status)
# regexp : URegularExpression* in/out -> "void*"
# groupNum : INT -> "int"
# dest : WORD* in/out -> "void*"
# destCapacity : INT -> "int"
# 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。