accounts/usbwallet, vendor: use hidapi instead of libusb directly
This commit is contained in:
Péter Szilágyi
227
vendor/github.com/karalabe/hid/wchar.go
generated
vendored
Normal file
227
vendor/github.com/karalabe/hid/wchar.go
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vendored
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// This file is https://github.com/orofarne/gowchar/blob/master/gowchar.go
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//
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// It was vendored inline to work around CGO limitations that don't allow C types
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// to directly cross package API boundaries.
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//
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// The vendored file is licensed under the 3-clause BSD license, according to:
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// https://github.com/orofarne/gowchar/blob/master/LICENSE
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// +build !ios
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// +build linux darwin windows
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package hid
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/*
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#include <wchar.h>
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const size_t SIZEOF_WCHAR_T = sizeof(wchar_t);
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void gowchar_set (wchar_t *arr, int pos, wchar_t val)
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{
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arr[pos] = val;
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}
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wchar_t gowchar_get (wchar_t *arr, int pos)
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{
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return arr[pos];
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}
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*/
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import "C"
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import (
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"fmt"
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"unicode/utf16"
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"unicode/utf8"
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)
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var sizeofWcharT C.size_t = C.size_t(C.SIZEOF_WCHAR_T)
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func stringToWcharT(s string) (*C.wchar_t, C.size_t) {
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switch sizeofWcharT {
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case 2:
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return stringToWchar2(s) // Windows
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case 4:
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return stringToWchar4(s) // Unix
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default:
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panic(fmt.Sprintf("Invalid sizeof(wchar_t) = %v", sizeofWcharT))
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}
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}
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func wcharTToString(s *C.wchar_t) (string, error) {
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switch sizeofWcharT {
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case 2:
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return wchar2ToString(s) // Windows
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case 4:
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return wchar4ToString(s) // Unix
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default:
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panic(fmt.Sprintf("Invalid sizeof(wchar_t) = %v", sizeofWcharT))
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}
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}
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func wcharTNToString(s *C.wchar_t, size C.size_t) (string, error) {
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switch sizeofWcharT {
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case 2:
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return wchar2NToString(s, size) // Windows
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case 4:
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return wchar4NToString(s, size) // Unix
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default:
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panic(fmt.Sprintf("Invalid sizeof(wchar_t) = %v", sizeofWcharT))
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}
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}
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// Windows
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func stringToWchar2(s string) (*C.wchar_t, C.size_t) {
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var slen int
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s1 := s
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for len(s1) > 0 {
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r, size := utf8.DecodeRuneInString(s1)
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if er, _ := utf16.EncodeRune(r); er == '\uFFFD' {
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slen += 1
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} else {
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slen += 2
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}
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s1 = s1[size:]
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}
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slen++ // \0
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res := C.malloc(C.size_t(slen) * sizeofWcharT)
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var i int
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for len(s) > 0 {
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r, size := utf8.DecodeRuneInString(s)
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if r1, r2 := utf16.EncodeRune(r); r1 != '\uFFFD' {
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C.gowchar_set((*C.wchar_t)(res), C.int(i), C.wchar_t(r1))
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i++
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C.gowchar_set((*C.wchar_t)(res), C.int(i), C.wchar_t(r2))
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i++
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} else {
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C.gowchar_set((*C.wchar_t)(res), C.int(i), C.wchar_t(r))
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i++
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}
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s = s[size:]
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}
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C.gowchar_set((*C.wchar_t)(res), C.int(slen-1), C.wchar_t(0)) // \0
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return (*C.wchar_t)(res), C.size_t(slen)
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}
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// Unix
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func stringToWchar4(s string) (*C.wchar_t, C.size_t) {
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slen := utf8.RuneCountInString(s)
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slen++ // \0
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res := C.malloc(C.size_t(slen) * sizeofWcharT)
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var i int
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for len(s) > 0 {
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r, size := utf8.DecodeRuneInString(s)
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C.gowchar_set((*C.wchar_t)(res), C.int(i), C.wchar_t(r))
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s = s[size:]
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i++
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}
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C.gowchar_set((*C.wchar_t)(res), C.int(slen-1), C.wchar_t(0)) // \0
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return (*C.wchar_t)(res), C.size_t(slen)
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}
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// Windows
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func wchar2ToString(s *C.wchar_t) (string, error) {
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var i int
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var res string
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for {
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ch := C.gowchar_get(s, C.int(i))
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if ch == 0 {
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break
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}
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r := rune(ch)
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i++
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if !utf16.IsSurrogate(r) {
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if !utf8.ValidRune(r) {
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err := fmt.Errorf("Invalid rune at position %v", i)
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return "", err
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}
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res += string(r)
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} else {
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ch2 := C.gowchar_get(s, C.int(i))
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r2 := rune(ch2)
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r12 := utf16.DecodeRune(r, r2)
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if r12 == '\uFFFD' {
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err := fmt.Errorf("Invalid surrogate pair at position %v", i-1)
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return "", err
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}
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res += string(r12)
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i++
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}
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}
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return res, nil
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}
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// Unix
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func wchar4ToString(s *C.wchar_t) (string, error) {
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var i int
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var res string
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for {
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ch := C.gowchar_get(s, C.int(i))
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if ch == 0 {
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break
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}
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r := rune(ch)
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if !utf8.ValidRune(r) {
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err := fmt.Errorf("Invalid rune at position %v", i)
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return "", err
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}
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res += string(r)
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i++
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}
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return res, nil
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}
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// Windows
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func wchar2NToString(s *C.wchar_t, size C.size_t) (string, error) {
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var i int
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var res string
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N := int(size)
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for i < N {
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ch := C.gowchar_get(s, C.int(i))
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if ch == 0 {
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break
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}
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r := rune(ch)
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i++
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if !utf16.IsSurrogate(r) {
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if !utf8.ValidRune(r) {
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err := fmt.Errorf("Invalid rune at position %v", i)
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return "", err
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}
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res += string(r)
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} else {
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if i >= N {
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err := fmt.Errorf("Invalid surrogate pair at position %v", i-1)
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return "", err
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}
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ch2 := C.gowchar_get(s, C.int(i))
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r2 := rune(ch2)
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r12 := utf16.DecodeRune(r, r2)
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if r12 == '\uFFFD' {
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err := fmt.Errorf("Invalid surrogate pair at position %v", i-1)
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return "", err
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}
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res += string(r12)
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i++
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}
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}
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return res, nil
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}
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// Unix
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func wchar4NToString(s *C.wchar_t, size C.size_t) (string, error) {
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var i int
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var res string
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N := int(size)
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for i < N {
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ch := C.gowchar_get(s, C.int(i))
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r := rune(ch)
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if !utf8.ValidRune(r) {
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err := fmt.Errorf("Invalid rune at position %v", i)
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return "", err
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}
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res += string(r)
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i++
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}
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return res, nil
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}
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