diff options
Diffstat (limited to '3rdparty/lua/src/modules/lua-winreg/src/lua_tstring.c')
| -rw-r--r-- | 3rdparty/lua/src/modules/lua-winreg/src/lua_tstring.c | 748 |
1 files changed, 374 insertions, 374 deletions
diff --git a/3rdparty/lua/src/modules/lua-winreg/src/lua_tstring.c b/3rdparty/lua/src/modules/lua-winreg/src/lua_tstring.c index 8a24cfe..5a96413 100644 --- a/3rdparty/lua/src/modules/lua-winreg/src/lua_tstring.c +++ b/3rdparty/lua/src/modules/lua-winreg/src/lua_tstring.c @@ -1,375 +1,375 @@ -#include <limits.h>
-#include <string.h>
-#include <lua.h>
-#include <lualib.h>
-#include <lauxlib.h>
-
-#include "luamacro.h"
-
-size_t lua_utf8towcsZ(lua_State *L, const char *s, int len){
- wchar_t UNCH = 0;
- size_t cchWC = 0; // # of wchar_t code points generated
- const unsigned char * pUTF8 = (const unsigned char *)s;
- const unsigned char * pEnd = (const unsigned char *)(s + len);
- luaL_Buffer b;
- luaL_buffinit(L, &b);
- while (pUTF8 < pEnd){
- // See if there are any trail bytes.
- if (*pUTF8 < 0xC0) {// 192
- // Found ASCII.
- UNCH = pUTF8[0];
- }else if (pUTF8[0] < 0xE0){ //224
- if ((pUTF8[1] & 0xC0) == 0x80) {
- /* A two-byte-character lead-byte not followed by trail-byte represents itself.*/
- UNCH = (wchar_t) (((pUTF8[0] & 0x1F) << 6) | (pUTF8[1] & 0x3F));
- pUTF8 += 1;
- }else{
- /* A two-byte-character lead-byte not followed by trail-byte represents itself. */
- UNCH = pUTF8[0];
- }
- }else if (pUTF8[0] < 0xF0) {//240
- if (((pUTF8[1] & 0xC0) == 0x80) && ((pUTF8[2] & 0xC0) == 0x80)) {
- /* Three-byte-character lead byte followed by two trail bytes.*/
- UNCH = (wchar_t) (((pUTF8[0] & 0x0F) << 12) | ((pUTF8[1] & 0x3F) << 6) | (pUTF8[2] & 0x3F));
- pUTF8 += 2;
- }else{
- /* Three-byte-character lead byte followed by two trail bytes.*/
- UNCH = pUTF8[0];
- }
- }else{
- UNCH = pUTF8[0];
- }
- luaL_addlstring(&b, (const char*)&UNCH, sizeof(wchar_t));
- cchWC++;
- pUTF8++;
- }
- luaL_addchar(&b, '\0');// the other '\0' will be added by lua
- luaL_pushresult(&b);
- // Return the number of wchar_t characters written.
- return (cchWC);
-}
-
-size_t lua_utf8towcs(lua_State *L, const char *s, int len){
- wchar_t UNCH = 0;
- size_t cchWC = 0; // # of wchar_t code points generated
- const unsigned char * pUTF8 = (const unsigned char *)s;
- const unsigned char * pEnd = (const unsigned char *)(s + len);
- luaL_Buffer b;
- luaL_buffinit(L, &b);
- while (pUTF8 < pEnd){
- // See if there are any trail bytes.
- if (*pUTF8 < 0xC0) {// 192
- // Found ASCII.
- UNCH = pUTF8[0];
- }else if (pUTF8[0] < 0xE0){ //224
- if ((pUTF8[1] & 0xC0) == 0x80) {
- /* A two-byte-character lead-byte not followed by trail-byte represents itself.*/
- UNCH = (wchar_t) (((pUTF8[0] & 0x1F) << 6) | (pUTF8[1] & 0x3F));
- pUTF8 += 1;
- }else{
- /* A two-byte-character lead-byte not followed by trail-byte represents itself. */
- UNCH = pUTF8[0];
- }
- }else if (pUTF8[0] < 0xF0) {//240
- if (((pUTF8[1] & 0xC0) == 0x80) && ((pUTF8[2] & 0xC0) == 0x80)) {
- /* Three-byte-character lead byte followed by two trail bytes.*/
- UNCH = (wchar_t) (((pUTF8[0] & 0x0F) << 12) | ((pUTF8[1] & 0x3F) << 6) | (pUTF8[2] & 0x3F));
- pUTF8 += 2;
- }else{
- /* Three-byte-character lead byte followed by two trail bytes.*/
- UNCH = pUTF8[0];
- }
- }else{
- UNCH = pUTF8[0];
- }
- luaL_addlstring(&b, (const char*)&UNCH, sizeof(wchar_t));
- cchWC++;
- pUTF8++;
- }
- luaL_pushresult(&b);
- // Return the number of wchar_t characters written.
- return (cchWC);
-}
-
-// Constant Declarations.
-#define ASCII 0x007f
-#define UTF8_2_MAX 0x07ff // max UTF8 2-byte sequence (32 * 64 = 2048)
-#define UTF8_1ST_OF_2 0xc0 // 110x xxxx
-#define UTF8_1ST_OF_3 0xe0 // 1110 xxxx
-#define UTF8_TRAIL 0x80 // 10xx xxxx
-#define HIGER_6_BIT(u) ((u) >> 12)
-#define MIDDLE_6_BIT(u) (((u) & 0x0fc0) >> 6)
-#define LOWER_6_BIT(u) ((u) & 0x003f)
-
-#ifndef HIBYTE
-#define BYTE unsigned char
-#define HIBYTE(w) ((BYTE) (((wchar_t) (w) >> 8) & 0xFF))
-#define LOBYTE(w) ((BYTE) (w))
-#endif
-
-// Maps a wchar_t character string to its UTF-8 string counterpart.
-size_t lua_wcstoutf8(lua_State *L, const wchar_t *s, size_t cchSrc){
- const wchar_t * lpWC = s;
- size_t cchU8 = 0; // # of UTF8 chars generated
-
- luaL_Buffer b;
- luaL_buffinit(L, &b);
-
- while (cchSrc--) {
- if (*lpWC <= ASCII){
- // Found ASCII.
- luaL_addchar(&b, (char)*lpWC);
- cchU8++;
- }else if (*lpWC <= UTF8_2_MAX){
- // Found 2 byte sequence if < 0x07ff (11 bits).
- // Use upper 5 bits in first byte.
- // Use lower 6 bits in second byte.
- luaL_addchar(&b, (char)(UTF8_1ST_OF_2 | (*lpWC >> 6)));
- luaL_addchar(&b, (char)(UTF8_TRAIL | LOWER_6_BIT(*lpWC)));
- cchU8 += 2;
- }else{
- // Found 3 byte sequence.
- // Use upper 4 bits in first byte.
- // Use middle 6 bits in second byte.
- // Use lower 6 bits in third byte.
- luaL_addchar(&b, (char)(UTF8_1ST_OF_3 | (*lpWC >> 12)));
- luaL_addchar(&b, (char)(UTF8_TRAIL | MIDDLE_6_BIT(*lpWC)));
- luaL_addchar(&b, (char)(UTF8_TRAIL | LOWER_6_BIT(*lpWC)));
- cchU8 += 3;
- }
- lpWC++;
- }
- luaL_pushresult(&b);
- // Return the number of UTF-8 characters written.
- return (cchU8);
-}
-
-size_t lua_chartowcsZ(lua_State *L, const char *s, int len){
- luaL_Buffer b;
- size_t cchWC = 0;
- wchar_t UNCH = 0;
- const unsigned char * pCur = (const unsigned char *)s;
- const unsigned char * pEnd = (const unsigned char *)(s + len);
- luaL_buffinit(L, &b);
- while (pCur < pEnd){
- UNCH = pCur[0];
- luaL_addlstring(&b, (const char*)&UNCH, sizeof(wchar_t));
- cchWC++;
- pCur++;
- }
- luaL_addchar(&b, '\0');// the other '\0' will be added by lua
- luaL_pushresult(&b);
- // Return the number of wchar_t characters written.
- return (cchWC);
-}
-int wc2utf8(char *d, wchar_t ch){
- if (ch < 0x80) {
- *d++ = (char)ch;
- return 1;
- }
- if (ch < 0x800) {
- *d++ = (char)(( ch >> 6) | 0xc0);
- *d++ = (char)(( ch & 0x3f) | 0x80);
- return 2;
- }
- {
- *d++ = (char)(( ch >> 12) | 0xe0);
- *d++ = (char)(((ch >> 6) & 0x3f) | 0x80);
- *d++ = (char)(( ch & 0x3f) | 0x80);
- return 3;
- }
-}
-// push a wchar_t character value convert equiv utf8 chars
-void lua_pushutf8_from_wchar(lua_State *L, wchar_t ch){
- char buf[4] = {0,0,0,0};
- lua_pushlstring(L, buf, wc2utf8(buf, ch));
-}
-// add a wchar_t character to buffer converted to equiv utf8 chars
-void lua_addutf8_from_wchar(luaL_Buffer * pB, wchar_t ch){
- luaL_addsize(pB, wc2utf8(luaL_prepbuffer (pB), ch));
-}
-// gets an int character value, if string is >= 2 chars checks if utf
-wchar_t lua_checkwchar_from_utf8(lua_State *L, int i){
- const unsigned char* psz = (const unsigned char *)luaL_checkstring(L, i);
- if ((psz[0] && psz[1] == 0) || psz[0] == 0) {
- return psz[0];// single character
- }else if ((psz[0] >= 0xC0) && (psz[0] < 0xE0)
- && (psz[1] & 0xC0) == 0x80
- && (psz[2] == 0)// Two-byte-character lead-byte followed by a trail-byte.
- ){ return (wchar_t)(((psz[0] & 0x1F) << 6) | (psz[1] & 0x3F));
- }else if ((psz[0] >= 0xE0) && (psz[0] < 0xF0)
- && ((psz[1] & 0xC0) == 0x80)
- && ((psz[2] & 0xC0) == 0x80)
- && (psz[3] == 0)// Three-utf-character lead utf followed by two trail bytes.
- ){ return (wchar_t)(((psz[0] & 0x0F) << 12) | ((psz[1] & 0x3F) << 6) | (psz[2] & 0x3F));
- }else{
- luaL_argerror(L, i, "character expected");
- }
- return 0;
-}
-// lua utf8 string to wide string
-const wchar_t *lua_tolwcs_from_utf8(lua_State *L, int narg, size_t* l){
- size_t ulen = 0;
- const char * psz;
- narg = lua_absindex(L, narg);
-#if LUA_VERSION_NUM >= 501
- psz = lua_tolstring(L, narg, &ulen);
-#else
- psz = lua_tostring(L, narg);
- ulen = lua_strlen(L, narg);
-#endif
- if(psz){
- ulen = (size_t)lua_utf8towcsZ(L, psz, (int)ulen);
- if(l)*l = ulen;
- lua_replace (L, narg);
- return (const wchar_t *)lua_tostring(L, narg);
- }else{
- return NULL;
- }
-}
-// lua utf8 string to wide string, with len
-const wchar_t *lua_checklwcs_from_utf8(lua_State *L, int narg, size_t* l){
- size_t ulen = 0;
- const char * psz;
- narg = lua_absindex(L, narg);
- psz = luaL_checklstring(L, narg, &ulen);
- ulen = (size_t)lua_utf8towcsZ(L, psz, (int)ulen);
- if(l)*l = ulen;
- lua_replace (L, narg);
- return (const wchar_t *)lua_tostring(L, narg);
-}
-// lua utf8 string to wide string, with len, optional
-const wchar_t *lua_optlwcs_from_utf8(lua_State *L, int narg, const wchar_t *def, size_t *len){
- if (lua_isnoneornil(L, narg)) {
- if (len)
- *len = (def ? wcslen(def) : 0);
- return def;
- }
- else return lua_checklwcs_from_utf8(L, narg, len);
-}
-// lua push wide string, convert to utf8
-void lua_pushutf8_from_wcs (lua_State *L, const wchar_t *s) {
- if (s == NULL)
- lua_pushnil(L);
- else
- lua_wcstoutf8(L, s, wcslen(s));
-}
-
-
-size_t lua_cstowcsZ(lua_State *L, const char *s, int len){
- wchar_t UNCH = 0;
- size_t cchWC = 0; // # of wchar_t code points generated
- const unsigned char * pStr = (const unsigned char *)s;
- const unsigned char * pEnd = (const unsigned char *)(s + len);
- luaL_Buffer b;
- luaL_buffinit(L, &b);
-
- while (pStr < pEnd){
- UNCH = *pStr;
- luaL_addlstring(&b, (const char*)&UNCH, sizeof(wchar_t));
- cchWC++;
- pStr++;
- }
- luaL_addchar(&b, '\0');// the other '\0' will be added by lua
- luaL_pushresult(&b);
- // Return the number of wchar_t characters written.
- return (cchWC);
-}
-// Lua char string to wide string, with len
-const wchar_t *lua_checklwcs_from_char(lua_State *L, int narg, size_t* l){
- size_t ulen = 0;
- const char * psz;
- narg = lua_absindex(L, narg);
- psz = luaL_checklstring(L, narg, &ulen);
- ulen = (size_t)lua_cstowcsZ(L, psz, (int)ulen);
- if(l)*l = ulen;
- lua_replace (L, narg);
- return (const wchar_t *)lua_tostring(L, narg);
-}
-// Lua char string to wide string, with len, optional
-const wchar_t *lua_optlwcs_from_char (lua_State *L, int narg, const wchar_t *def, size_t *len){
- if (lua_isnoneornil(L, narg)) {
- if (len)
- *len = (def ? wcslen(def) : 0);
- return def;
- }
- else return lua_checklwcs_from_char(L, narg, len);
-}
-// Maps a wchar_t character string to its char string counterpart.
-size_t lua_wcstochar(lua_State *L, const wchar_t *s, size_t cchSrc){
- const wchar_t * lpWC = s;
- size_t cch = 0; // # of UTF8 chars generated
-
- luaL_Buffer b;
- luaL_buffinit(L, &b);
-
- while (cchSrc--) {
- if (*lpWC <= 0x00ff){
- luaL_addchar(&b, (char)*lpWC);
- }else{
- luaL_addchar(&b, '?');// no choice
- }
- cch++;
- lpWC++;
- }
- luaL_pushresult(&b);
- // Return the number of char characters written.
- return (cch);
-}
-
-
-
-
-
-
-
-/*
-size_t lua_utf8towcsZ2(lua_State *L, const char *s, int len){
- size_t cchWC = 0; // # of wchar_t code points generated
- const unsigned char * pUTF8 = (const unsigned char *)s;
- const unsigned char * pEnd = (const unsigned char *)(s + len);
- wchar_t * pBuf = NULL;
- const wchar_t * pBuf0 = NULL;
- const wchar_t * pBuf1 = NULL;
- luaL_Buffer b;
- luaL_buffinit(L, &b);
- while (pUTF8 < pEnd){
- pBuf = (wchar_t *)luaL_prepbuffer(&b);
- pBuf0 = pBuf;
- pBuf1 = pBuf + (LUAL_BUFFERSIZE-sizeof(wchar_t));
- while(pUTF8 < pEnd && pBuf <= pBuf1){
- // See if there are any trail bytes.
- if (*pUTF8 < 0xC0) {// 192
- // Found ASCII.
- *pBuf++ = pUTF8[0];
- }else if (pUTF8[0] < 0xE0){ //224
- if ((pUTF8[1] & 0xC0) == 0x80) {
- // A two-byte-character lead-byte not followed by trail-byte represents itself.
- *pBuf++ = (wchar_t) (((pUTF8[0] & 0x1F) << 6) | (pUTF8[1] & 0x3F));
- pUTF8 += 1;
- }else{
- // A two-byte-character lead-byte not followed by trail-byte represents itself.
- *pBuf++ = pUTF8[0];
- }
- }else if (pUTF8[0] < 0xF0) {//240
- if (((pUTF8[1] & 0xC0) == 0x80) && ((pUTF8[2] & 0xC0) == 0x80)) {
- // Three-byte-character lead byte followed by two trail bytes.
- *pBuf++ = (wchar_t) (((pUTF8[0] & 0x0F) << 12) | ((pUTF8[1] & 0x3F) << 6) | (pUTF8[2] & 0x3F));
- pUTF8 += 2;
- }else{
- // Three-byte-character lead byte followed by two trail bytes.
- *pBuf++ = pUTF8[0];
- }
- }else{
- *pBuf++ = pUTF8[0];
- }
- cchWC++;
- pUTF8++;
- }
- luaL_addsize(&b, (size_t)(pBuf0 - pBuf));
- }
- luaL_addchar(&b, '\0');// the other '\0' will be added by lua
- luaL_pushresult(&b);
- // Return the number of wchar_t characters written.
- return (cchWC);
+#include <limits.h> +#include <string.h> +#include <lua.h> +#include <lualib.h> +#include <lauxlib.h> + +#include "luamacro.h" + +size_t lua_utf8towcsZ(lua_State *L, const char *s, int len){ + wchar_t UNCH = 0; + size_t cchWC = 0; // # of wchar_t code points generated + const unsigned char * pUTF8 = (const unsigned char *)s; + const unsigned char * pEnd = (const unsigned char *)(s + len); + luaL_Buffer b; + luaL_buffinit(L, &b); + while (pUTF8 < pEnd){ + // See if there are any trail bytes. + if (*pUTF8 < 0xC0) {// 192 + // Found ASCII. + UNCH = pUTF8[0]; + }else if (pUTF8[0] < 0xE0){ //224 + if ((pUTF8[1] & 0xC0) == 0x80) { + /* A two-byte-character lead-byte not followed by trail-byte represents itself.*/ + UNCH = (wchar_t) (((pUTF8[0] & 0x1F) << 6) | (pUTF8[1] & 0x3F)); + pUTF8 += 1; + }else{ + /* A two-byte-character lead-byte not followed by trail-byte represents itself. */ + UNCH = pUTF8[0]; + } + }else if (pUTF8[0] < 0xF0) {//240 + if (((pUTF8[1] & 0xC0) == 0x80) && ((pUTF8[2] & 0xC0) == 0x80)) { + /* Three-byte-character lead byte followed by two trail bytes.*/ + UNCH = (wchar_t) (((pUTF8[0] & 0x0F) << 12) | ((pUTF8[1] & 0x3F) << 6) | (pUTF8[2] & 0x3F)); + pUTF8 += 2; + }else{ + /* Three-byte-character lead byte followed by two trail bytes.*/ + UNCH = pUTF8[0]; + } + }else{ + UNCH = pUTF8[0]; + } + luaL_addlstring(&b, (const char*)&UNCH, sizeof(wchar_t)); + cchWC++; + pUTF8++; + } + luaL_addchar(&b, '\0');// the other '\0' will be added by lua + luaL_pushresult(&b); + // Return the number of wchar_t characters written. + return (cchWC); +} + +size_t lua_utf8towcs(lua_State *L, const char *s, int len){ + wchar_t UNCH = 0; + size_t cchWC = 0; // # of wchar_t code points generated + const unsigned char * pUTF8 = (const unsigned char *)s; + const unsigned char * pEnd = (const unsigned char *)(s + len); + luaL_Buffer b; + luaL_buffinit(L, &b); + while (pUTF8 < pEnd){ + // See if there are any trail bytes. + if (*pUTF8 < 0xC0) {// 192 + // Found ASCII. + UNCH = pUTF8[0]; + }else if (pUTF8[0] < 0xE0){ //224 + if ((pUTF8[1] & 0xC0) == 0x80) { + /* A two-byte-character lead-byte not followed by trail-byte represents itself.*/ + UNCH = (wchar_t) (((pUTF8[0] & 0x1F) << 6) | (pUTF8[1] & 0x3F)); + pUTF8 += 1; + }else{ + /* A two-byte-character lead-byte not followed by trail-byte represents itself. */ + UNCH = pUTF8[0]; + } + }else if (pUTF8[0] < 0xF0) {//240 + if (((pUTF8[1] & 0xC0) == 0x80) && ((pUTF8[2] & 0xC0) == 0x80)) { + /* Three-byte-character lead byte followed by two trail bytes.*/ + UNCH = (wchar_t) (((pUTF8[0] & 0x0F) << 12) | ((pUTF8[1] & 0x3F) << 6) | (pUTF8[2] & 0x3F)); + pUTF8 += 2; + }else{ + /* Three-byte-character lead byte followed by two trail bytes.*/ + UNCH = pUTF8[0]; + } + }else{ + UNCH = pUTF8[0]; + } + luaL_addlstring(&b, (const char*)&UNCH, sizeof(wchar_t)); + cchWC++; + pUTF8++; + } + luaL_pushresult(&b); + // Return the number of wchar_t characters written. + return (cchWC); +} + +// Constant Declarations. +#define ASCII 0x007f +#define UTF8_2_MAX 0x07ff // max UTF8 2-byte sequence (32 * 64 = 2048) +#define UTF8_1ST_OF_2 0xc0 // 110x xxxx +#define UTF8_1ST_OF_3 0xe0 // 1110 xxxx +#define UTF8_TRAIL 0x80 // 10xx xxxx +#define HIGER_6_BIT(u) ((u) >> 12) +#define MIDDLE_6_BIT(u) (((u) & 0x0fc0) >> 6) +#define LOWER_6_BIT(u) ((u) & 0x003f) + +#ifndef HIBYTE +#define BYTE unsigned char +#define HIBYTE(w) ((BYTE) (((wchar_t) (w) >> 8) & 0xFF)) +#define LOBYTE(w) ((BYTE) (w)) +#endif + +// Maps a wchar_t character string to its UTF-8 string counterpart. +size_t lua_wcstoutf8(lua_State *L, const wchar_t *s, size_t cchSrc){ + const wchar_t * lpWC = s; + size_t cchU8 = 0; // # of UTF8 chars generated + + luaL_Buffer b; + luaL_buffinit(L, &b); + + while (cchSrc--) { + if (*lpWC <= ASCII){ + // Found ASCII. + luaL_addchar(&b, (char)*lpWC); + cchU8++; + }else if (*lpWC <= UTF8_2_MAX){ + // Found 2 byte sequence if < 0x07ff (11 bits). + // Use upper 5 bits in first byte. + // Use lower 6 bits in second byte. + luaL_addchar(&b, (char)(UTF8_1ST_OF_2 | (*lpWC >> 6))); + luaL_addchar(&b, (char)(UTF8_TRAIL | LOWER_6_BIT(*lpWC))); + cchU8 += 2; + }else{ + // Found 3 byte sequence. + // Use upper 4 bits in first byte. + // Use middle 6 bits in second byte. + // Use lower 6 bits in third byte. + luaL_addchar(&b, (char)(UTF8_1ST_OF_3 | (*lpWC >> 12))); + luaL_addchar(&b, (char)(UTF8_TRAIL | MIDDLE_6_BIT(*lpWC))); + luaL_addchar(&b, (char)(UTF8_TRAIL | LOWER_6_BIT(*lpWC))); + cchU8 += 3; + } + lpWC++; + } + luaL_pushresult(&b); + // Return the number of UTF-8 characters written. + return (cchU8); +} + +size_t lua_chartowcsZ(lua_State *L, const char *s, int len){ + luaL_Buffer b; + size_t cchWC = 0; + wchar_t UNCH = 0; + const unsigned char * pCur = (const unsigned char *)s; + const unsigned char * pEnd = (const unsigned char *)(s + len); + luaL_buffinit(L, &b); + while (pCur < pEnd){ + UNCH = pCur[0]; + luaL_addlstring(&b, (const char*)&UNCH, sizeof(wchar_t)); + cchWC++; + pCur++; + } + luaL_addchar(&b, '\0');// the other '\0' will be added by lua + luaL_pushresult(&b); + // Return the number of wchar_t characters written. + return (cchWC); +} +int wc2utf8(char *d, wchar_t ch){ + if (ch < 0x80) { + *d++ = (char)ch; + return 1; + } + if (ch < 0x800) { + *d++ = (char)(( ch >> 6) | 0xc0); + *d++ = (char)(( ch & 0x3f) | 0x80); + return 2; + } + { + *d++ = (char)(( ch >> 12) | 0xe0); + *d++ = (char)(((ch >> 6) & 0x3f) | 0x80); + *d++ = (char)(( ch & 0x3f) | 0x80); + return 3; + } +} +// push a wchar_t character value convert equiv utf8 chars +void lua_pushutf8_from_wchar(lua_State *L, wchar_t ch){ + char buf[4] = {0,0,0,0}; + lua_pushlstring(L, buf, wc2utf8(buf, ch)); +} +// add a wchar_t character to buffer converted to equiv utf8 chars +void lua_addutf8_from_wchar(luaL_Buffer * pB, wchar_t ch){ + luaL_addsize(pB, wc2utf8(luaL_prepbuffer (pB), ch)); +} +// gets an int character value, if string is >= 2 chars checks if utf +wchar_t lua_checkwchar_from_utf8(lua_State *L, int i){ + const unsigned char* psz = (const unsigned char *)luaL_checkstring(L, i); + if ((psz[0] && psz[1] == 0) || psz[0] == 0) { + return psz[0];// single character + }else if ((psz[0] >= 0xC0) && (psz[0] < 0xE0) + && (psz[1] & 0xC0) == 0x80 + && (psz[2] == 0)// Two-byte-character lead-byte followed by a trail-byte. + ){ return (wchar_t)(((psz[0] & 0x1F) << 6) | (psz[1] & 0x3F)); + }else if ((psz[0] >= 0xE0) && (psz[0] < 0xF0) + && ((psz[1] & 0xC0) == 0x80) + && ((psz[2] & 0xC0) == 0x80) + && (psz[3] == 0)// Three-utf-character lead utf followed by two trail bytes. + ){ return (wchar_t)(((psz[0] & 0x0F) << 12) | ((psz[1] & 0x3F) << 6) | (psz[2] & 0x3F)); + }else{ + luaL_argerror(L, i, "character expected"); + } + return 0; +} +// lua utf8 string to wide string +const wchar_t *lua_tolwcs_from_utf8(lua_State *L, int narg, size_t* l){ + size_t ulen = 0; + const char * psz; + narg = lua_absindex(L, narg); +#if LUA_VERSION_NUM >= 501 + psz = lua_tolstring(L, narg, &ulen); +#else + psz = lua_tostring(L, narg); + ulen = lua_strlen(L, narg); +#endif + if(psz){ + ulen = (size_t)lua_utf8towcsZ(L, psz, (int)ulen); + if(l)*l = ulen; + lua_replace (L, narg); + return (const wchar_t *)lua_tostring(L, narg); + }else{ + return NULL; + } +} +// lua utf8 string to wide string, with len +const wchar_t *lua_checklwcs_from_utf8(lua_State *L, int narg, size_t* l){ + size_t ulen = 0; + const char * psz; + narg = lua_absindex(L, narg); + psz = luaL_checklstring(L, narg, &ulen); + ulen = (size_t)lua_utf8towcsZ(L, psz, (int)ulen); + if(l)*l = ulen; + lua_replace (L, narg); + return (const wchar_t *)lua_tostring(L, narg); +} +// lua utf8 string to wide string, with len, optional +const wchar_t *lua_optlwcs_from_utf8(lua_State *L, int narg, const wchar_t *def, size_t *len){ + if (lua_isnoneornil(L, narg)) { + if (len) + *len = (def ? wcslen(def) : 0); + return def; + } + else return lua_checklwcs_from_utf8(L, narg, len); +} +// lua push wide string, convert to utf8 +void lua_pushutf8_from_wcs (lua_State *L, const wchar_t *s) { + if (s == NULL) + lua_pushnil(L); + else + lua_wcstoutf8(L, s, wcslen(s)); +} + + +size_t lua_cstowcsZ(lua_State *L, const char *s, int len){ + wchar_t UNCH = 0; + size_t cchWC = 0; // # of wchar_t code points generated + const unsigned char * pStr = (const unsigned char *)s; + const unsigned char * pEnd = (const unsigned char *)(s + len); + luaL_Buffer b; + luaL_buffinit(L, &b); + + while (pStr < pEnd){ + UNCH = *pStr; + luaL_addlstring(&b, (const char*)&UNCH, sizeof(wchar_t)); + cchWC++; + pStr++; + } + luaL_addchar(&b, '\0');// the other '\0' will be added by lua + luaL_pushresult(&b); + // Return the number of wchar_t characters written. + return (cchWC); +} +// Lua char string to wide string, with len +const wchar_t *lua_checklwcs_from_char(lua_State *L, int narg, size_t* l){ + size_t ulen = 0; + const char * psz; + narg = lua_absindex(L, narg); + psz = luaL_checklstring(L, narg, &ulen); + ulen = (size_t)lua_cstowcsZ(L, psz, (int)ulen); + if(l)*l = ulen; + lua_replace (L, narg); + return (const wchar_t *)lua_tostring(L, narg); +} +// Lua char string to wide string, with len, optional +const wchar_t *lua_optlwcs_from_char (lua_State *L, int narg, const wchar_t *def, size_t *len){ + if (lua_isnoneornil(L, narg)) { + if (len) + *len = (def ? wcslen(def) : 0); + return def; + } + else return lua_checklwcs_from_char(L, narg, len); +} +// Maps a wchar_t character string to its char string counterpart. +size_t lua_wcstochar(lua_State *L, const wchar_t *s, size_t cchSrc){ + const wchar_t * lpWC = s; + size_t cch = 0; // # of UTF8 chars generated + + luaL_Buffer b; + luaL_buffinit(L, &b); + + while (cchSrc--) { + if (*lpWC <= 0x00ff){ + luaL_addchar(&b, (char)*lpWC); + }else{ + luaL_addchar(&b, '?');// no choice + } + cch++; + lpWC++; + } + luaL_pushresult(&b); + // Return the number of char characters written. + return (cch); +} + + + + + + + +/* +size_t lua_utf8towcsZ2(lua_State *L, const char *s, int len){ + size_t cchWC = 0; // # of wchar_t code points generated + const unsigned char * pUTF8 = (const unsigned char *)s; + const unsigned char * pEnd = (const unsigned char *)(s + len); + wchar_t * pBuf = NULL; + const wchar_t * pBuf0 = NULL; + const wchar_t * pBuf1 = NULL; + luaL_Buffer b; + luaL_buffinit(L, &b); + while (pUTF8 < pEnd){ + pBuf = (wchar_t *)luaL_prepbuffer(&b); + pBuf0 = pBuf; + pBuf1 = pBuf + (LUAL_BUFFERSIZE-sizeof(wchar_t)); + while(pUTF8 < pEnd && pBuf <= pBuf1){ + // See if there are any trail bytes. + if (*pUTF8 < 0xC0) {// 192 + // Found ASCII. + *pBuf++ = pUTF8[0]; + }else if (pUTF8[0] < 0xE0){ //224 + if ((pUTF8[1] & 0xC0) == 0x80) { + // A two-byte-character lead-byte not followed by trail-byte represents itself. + *pBuf++ = (wchar_t) (((pUTF8[0] & 0x1F) << 6) | (pUTF8[1] & 0x3F)); + pUTF8 += 1; + }else{ + // A two-byte-character lead-byte not followed by trail-byte represents itself. + *pBuf++ = pUTF8[0]; + } + }else if (pUTF8[0] < 0xF0) {//240 + if (((pUTF8[1] & 0xC0) == 0x80) && ((pUTF8[2] & 0xC0) == 0x80)) { + // Three-byte-character lead byte followed by two trail bytes. + *pBuf++ = (wchar_t) (((pUTF8[0] & 0x0F) << 12) | ((pUTF8[1] & 0x3F) << 6) | (pUTF8[2] & 0x3F)); + pUTF8 += 2; + }else{ + // Three-byte-character lead byte followed by two trail bytes. + *pBuf++ = pUTF8[0]; + } + }else{ + *pBuf++ = pUTF8[0]; + } + cchWC++; + pUTF8++; + } + luaL_addsize(&b, (size_t)(pBuf0 - pBuf)); + } + luaL_addchar(&b, '\0');// the other '\0' will be added by lua + luaL_pushresult(&b); + // Return the number of wchar_t characters written. + return (cchWC); }//*/
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