pf2: skeleton str api

This commit is contained in:
Michael Scire 2021-02-03 14:28:01 -08:00
parent 60ea1dade2
commit 3107ec0127
6 changed files with 318 additions and 0 deletions

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@ -22,6 +22,7 @@
#include <vapours/svc.hpp>
#include <vapours/prfile2/prfile2_common.hpp>
#include <vapours/prfile2/prfile2_str.hpp>
#include <vapours/prfile2/prfile2_system.hpp>
#include <vapours/prfile2/pdm/prfile2_pdm_api.hpp>
#include <vapours/prfile2/pdm/prfile2_pdm_disk_management.hpp>

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@ -17,6 +17,7 @@
#include <vapours/prfile2/prfile2_build_config.hpp>
#include <vapours/prfile2/pf/prfile2_pf_config.hpp>
#include <vapours/prfile2/pf/prfile2_pf_api_common.hpp>
#include <vapours/prfile2/prfile2_wide_string.hpp>
namespace ams::prfile2 {

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/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <vapours/prfile2/prfile2_common.hpp>
namespace ams::prfile2::str {
enum CodeMode {
CodeMode_Invalid = 0,
CodeMode_Local = 1,
CodeMode_Unicode = 2,
};
enum TargetString {
TargetString_Head = 1,
TargetString_Tail = 2,
};
struct String {
const char *head;
const char *tail;
CodeMode code_mode;
};
pf::Error Initialize(String *str, const char *s, CodeMode code_mode);
void SetCodeMode(String *str, CodeMode code_mode);
CodeMode GetCodeMode(const String *str);
char *GetPos(String *str, TargetString target);
void MovePos(String *str, s16 num_char);
u16 GetLength(String *str);
u16 GetNumChar(String *str, TargetString target);
int Compare(const String *str, const char *rhs);
int Compare(const String *str, const WideChar *rhs);
/* TODO: StrNCmp */
/* TODO: ToUpperNStr */
constexpr bool IsNull(const String *str) {
return str->head == nullptr;
}
}
namespace ams::prfile2 {
using String = str::String;
}

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/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <vapours/prfile2/prfile2_common.hpp>
namespace ams::prfile2 {
using WideChar = u16;
size_t w_strlen(const WideChar *s);
size_t w_strnlen(const WideChar *s, size_t length);
WideChar *w_strcpy(WideChar *dst, const WideChar *src);
WideChar *w_strncpy(WideChar *dst, const WideChar *src, size_t length);
int w_strcmp(const WideChar *lhs, const WideChar *rhs);
int w_strncmp(const WideChar *lhs, const WideChar *rhs, size_t length);
}

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/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#if defined(ATMOSPHERE_IS_STRATOSPHERE)
#include <stratosphere.hpp>
#elif defined(ATMOSPHERE_IS_MESOSPHERE)
#include <mesosphere.hpp>
#elif defined(ATMOSPHERE_IS_EXOSPHERE)
#include <exosphere.hpp>
#else
#include <vapours.hpp>
#endif
namespace ams::prfile2::str {
namespace {
/* TODO: Where does this come from? */
/* It's maximum path length * 2, but where should the definition live? */
constexpr inline size_t StringLengthMax = 520;
}
pf::Error Initialize(String *str, const char *s, CodeMode code_mode) {
/* Check parameters. */
if (str == nullptr || s == nullptr) {
return pf::Error_InvalidParameter;
}
/* Initialize the string. */
switch (code_mode) {
case CodeMode_Local:
{
str->head = s;
str->tail = s + sizeof(char) * strnlen(s, StringLengthMax);
}
break;
case CodeMode_Unicode:
{
str->head = s;
str->tail = s + sizeof(WideChar) * w_strnlen(reinterpret_cast<const WideChar *>(s), StringLengthMax);
}
break;
default:
return pf::Error_InvalidParameter;
}
/* Set the code mode. */
str->code_mode = code_mode;
return pf::Error_Ok;
}
void SetCodeMode(String *str, CodeMode code_mode) {
str->code_mode = code_mode;
}
CodeMode GetCodeMode(const String *str) {
return str->code_mode;
}
char *GetPos(String *str, TargetString target) {
if (target == TargetString_Head) {
return const_cast<char *>(str->head);
} else {
return const_cast<char *>(str->tail);
}
}
void MovePos(String *str, s16 num_char) {
AMS_UNUSED(str, num_char);
AMS_ABORT("TODO: oem charset");
}
u16 GetLength(String *str) {
if (str->code_mode == CodeMode_Unicode) {
return (str->tail - str->head) / sizeof(WideChar);
} else {
return (str->tail - str->head) / sizeof(char);
}
}
u16 GetNumChar(String *str, TargetString target) {
AMS_UNUSED(str, target);
AMS_ABORT("TODO: oem charset");
}
int Compare(const String *str, const char *rhs) {
AMS_UNUSED(str, rhs);
AMS_ABORT("TODO: oem charset");
}
int Compare(const String *str, const WideChar *rhs) {
AMS_UNUSED(str, rhs);
AMS_ABORT("TODO: oem charset");
}
}

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/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#if defined(ATMOSPHERE_IS_STRATOSPHERE)
#include <stratosphere.hpp>
#elif defined(ATMOSPHERE_IS_MESOSPHERE)
#include <mesosphere.hpp>
#elif defined(ATMOSPHERE_IS_EXOSPHERE)
#include <exosphere.hpp>
#else
#include <vapours.hpp>
#endif
namespace ams::prfile2 {
size_t w_strlen(const WideChar *s) {
const WideChar *cur;
for (cur = s; *cur != 0; ++cur) {
/* ... */
}
return cur - s;
}
size_t w_strnlen(const WideChar *s, size_t length) {
const WideChar *cur;
for (cur = s; *cur != 0 && length != 0; ++cur, --length) {
/* ... */
}
return cur - s;
}
WideChar *w_strcpy(WideChar *dst, const WideChar *src) {
WideChar * const ret = dst;
while (true) {
const auto c = *(src++);
*(dst++) = c;
if (c == 0) {
break;
}
}
return ret;
}
WideChar *w_strncpy(WideChar *dst, const WideChar *src, size_t length) {
WideChar * const ret = dst;
while (length > 1) {
const auto c = *(src++);
*(dst++) = c;
if (c == 0) {
return ret;
}
}
if (length == 1) {
*(dst++) = 0;
}
return ret;
}
int w_strcmp(const WideChar *lhs, const WideChar *rhs) {
WideChar l, r;
while (true) {
l = *(lhs++);
r = *(rhs++);
if (l == 0 || r == 0 || l != r) {
break;
}
}
return l - r;
}
int w_strncmp(const WideChar *lhs, const WideChar *rhs, size_t length) {
if (length == 0) {
return 0;
}
WideChar l, r;
while (true) {
l = *(lhs++);
r = *(rhs++);
if (l == 0 || r == 0 || l != r) {
break;
}
if ((--length) == 0) {
return 0;
}
}
return l - r;
}
}