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small code simplification

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This commit is contained in:
Mathias Gumz 2011-10-23 09:01:19 +02:00
parent ee34b376d7
commit dc18666ef2
1 changed files with 69 additions and 74 deletions
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143
src/FbTk/FbString.cc
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@ -50,13 +50,14 @@
#include <iostream>
#include <vector>
#ifndef HAVE_ICONV
typedef int iconv_t;
#endif // HAVE_ICONV
#ifdef HAVE_FRIBIDI
#include <fribidi/fribidi.h>
#endif
using std::string;
#ifdef DEBUG
using std::cerr;
using std::endl;
@ -64,6 +65,8 @@ using std::endl;
namespace {
const iconv_t ICONV_NULL = (iconv_t)(-1);
#ifdef HAVE_FRIBIDI
FbTk::FbString makeVisualFromLogical(const FbTk::FbString& src) {
@ -106,7 +109,6 @@ FbTk::FbString makeVisualFromLogical(const FbTk::FbString& src) {
namespace FbTk {
BiDiString::BiDiString(const FbString& logical)
#ifdef HAVE_FRIBIDI
: m_visual_dirty(false)
@ -145,63 +147,60 @@ const FbString& BiDiString::visual() const {
namespace FbStringUtil {
enum ConvType { FB2X = 0, X2FB, LOCALE2FB, FB2LOCALE, CONVSIZE };
enum ConvType {
FB2X = 0,
X2FB,
LOCALE2FB,
FB2LOCALE,
CONVSIZE
};
#ifdef HAVE_ICONV
static iconv_t *iconv_convs = 0;
#else
typedef int iconv_t;
static int iconv_convs[CONVSIZE];
#endif // HAVE_ICONV
static string locale_codeset;
static bool s_inited = false;
static iconv_t s_iconv_convs[CONVSIZE];
static std::string s_locale_codeset;
/// Initialise all of the iconv conversion descriptors
void init() {
if (s_inited)
return;
s_inited = true;
setlocale(LC_CTYPE, "");
#ifdef HAVE_ICONV
if (iconv_convs != 0)
return;
iconv_convs = new iconv_t[CONVSIZE];
#ifdef CODESET
locale_codeset = nl_langinfo(CODESET);
s_locale_codeset = nl_langinfo(CODESET);
#else // openbsd doesnt have this (yet?)
locale_codeset = "";
string locale = setlocale(LC_CTYPE, NULL);
std::string locale = setlocale(LC_CTYPE, NULL);
size_t pos = locale.find('.');
if (pos != string::npos)
locale_codeset = locale.substr(pos+1);
s_locale_codeset = locale.substr(pos+1);
#endif // CODESET
#ifdef DEBUG
cerr<<"FbTk::FbString: setup converts for local codeset = "<<locale_codeset<<endl;
cerr << "FbTk::FbString: setup converts for local codeset = " << s_locale_codeset << endl;
#endif // DEBUG
iconv_convs[FB2X] = iconv_open("ISO8859-1", "UTF-8");
iconv_convs[X2FB] = iconv_open("UTF-8", "ISO8859-1");
iconv_convs[FB2LOCALE] = iconv_open(locale_codeset.c_str(), "UTF-8");
iconv_convs[LOCALE2FB] = iconv_open("UTF-8", locale_codeset.c_str());
s_iconv_convs[FB2X] = iconv_open("ISO8859-1", "UTF-8");
s_iconv_convs[X2FB] = iconv_open("UTF-8", "ISO8859-1");
s_iconv_convs[FB2LOCALE] = iconv_open(s_locale_codeset.c_str(), "UTF-8");
s_iconv_convs[LOCALE2FB] = iconv_open("UTF-8", s_locale_codeset.c_str());
#else
for (int i=0; i < CONVSIZE; ++i)
iconv_convs[i] = 0;
memset(s_iconv_convs, 0, sizeof(s_iconv_convs));
#endif // HAVE_ICONV
}
void shutdown() {
#ifdef HAVE_ICONV
if (iconv_convs == 0)
return;
int i;
for (i = 0; i < CONVSIZE; ++i)
if (s_iconv_convs[i] != ICONV_NULL)
iconv_close(s_iconv_convs[i]);
for (int i=0; i < CONVSIZE; ++i)
if (iconv_convs[i] != (iconv_t)(-1))
iconv_close(iconv_convs[i]);
delete[] iconv_convs;
iconv_convs = 0;
memset(s_iconv_convs, 0, sizeof(s_iconv_convs));
s_inited = false;
#endif // HAVE_ICONV
}
@ -216,7 +215,7 @@ void shutdown() {
@param size number of BYTES to convert
@return the recoded string, or 0 on failure
*/
string recode(iconv_t cd, const string &in) {
std::string recode(iconv_t cd, const std::string &in) {
#ifdef HAVE_ICONV
/**
@ -231,13 +230,13 @@ string recode(iconv_t cd, const string &in) {
if (in.empty())
return "";
if (cd == ((iconv_t)(-1)))
if (cd == ICONV_NULL)
return in; // can't convert
size_t insize = in.size();
size_t outsize = insize;
char * out = (char *) malloc(outsize * sizeof(char)); // need realloc
char * out_ptr = out;
std::vector<char> out(outsize);
char* out_ptr = &out[0];
size_t inbytesleft = insize;
size_t outbytesleft = outsize;
@ -245,7 +244,7 @@ string recode(iconv_t cd, const string &in) {
#ifdef HAVE_CONST_ICONV
const char* in_ptr = in.data();
#else
char * in_ptr = const_cast<char *>(in.data());
char* in_ptr = const_cast<char*>(in.data());
#endif
size_t result = (size_t)(-1);
bool again = true;
@ -267,11 +266,11 @@ string recode(iconv_t cd, const string &in) {
case E2BIG:
// need more space!
outsize += insize;
out = (char *) realloc(out, outsize*sizeof(char));
if (out != NULL)
out.resize(outsize);
if (out.capacity() != outsize)
again = true;
outbytesleft += insize;
out_ptr = out + outsize - outbytesleft;
out_ptr = (&out[0] + outsize) - outbytesleft;
break;
default:
// something else broke
@ -282,42 +281,39 @@ string recode(iconv_t cd, const string &in) {
}
// copy to our return string
string ret;
ret.append(out, outsize - outbytesleft);
std::string ret;
ret.append(&out[0], outsize - outbytesleft);
// reset the conversion descriptor
iconv(cd, NULL, NULL, NULL, NULL);
if (out)
free(out);
return ret;
#else
return in;
#endif // HAVE_ICONV
}
FbString XStrToFb(const string &src) {
return recode(iconv_convs[X2FB], src);
FbString XStrToFb(const std::string &src) {
return recode(s_iconv_convs[X2FB], src);
}
string FbStrToX(const FbString &src) {
return recode(iconv_convs[FB2X], src);
std::string FbStrToX(const FbString &src) {
return recode(s_iconv_convs[FB2X], src);
}
/// Handle thislocale string encodings (strings coming from userspace)
FbString LocaleStrToFb(const string &src) {
return recode(iconv_convs[LOCALE2FB], src);
FbString LocaleStrToFb(const std::string &src) {
return recode(s_iconv_convs[LOCALE2FB], src);
}
string FbStrToLocale(const FbString &src) {
return recode(iconv_convs[FB2LOCALE], src);
std::string FbStrToLocale(const FbString &src) {
return recode(s_iconv_convs[FB2LOCALE], src);
}
bool haveUTF8() {
#ifdef HAVE_ICONV
if (iconv_convs[LOCALE2FB] != ((iconv_t)(-1)))
if (s_iconv_convs[LOCALE2FB] != ICONV_NULL)
return true;
#endif // HAVE_ICONV
@ -328,9 +324,9 @@ bool haveUTF8() {
} // end namespace StringUtil
#ifdef HAVE_ICONV
StringConvertor::StringConvertor(EncodingTarget target) : m_iconv((iconv_t)(-1)) {
StringConvertor::StringConvertor(EncodingTarget target) : m_iconv(ICONV_NULL) {
if (target == ToLocaleStr)
m_destencoding = FbStringUtil::locale_codeset;
m_destencoding = FbStringUtil::s_locale_codeset;
else
m_destencoding = "UTF-8";
}
@ -339,23 +335,22 @@ StringConvertor::StringConvertor(EncodingTarget target) { }
#endif
StringConvertor::~StringConvertor() {
#ifdef HAVE_ICONV
if (m_iconv != ((iconv_t)-1))
iconv_close(m_iconv);
#endif
reset();
}
bool StringConvertor::setSource(const string &encoding) {
bool StringConvertor::setSource(const std::string &encoding) {
#ifdef HAVE_ICONV
string tempenc = encoding;
if (encoding == "")
tempenc = FbStringUtil::locale_codeset;
std::string tempenc = encoding.empty() ? FbStringUtil::s_locale_codeset : encoding;
if ((tempenc == m_destencoding) && (m_iconv == ICONV_NULL)) {
return true;
}
iconv_t newiconv = iconv_open(m_destencoding.c_str(), tempenc.c_str());
if (newiconv == ((iconv_t)(-1)))
if (newiconv == ICONV_NULL)
return false;
else {
if (m_iconv != ((iconv_t)-1))
if (m_iconv != ICONV_NULL)
iconv_close(m_iconv);
m_iconv = newiconv;
return true;
@ -365,7 +360,7 @@ bool StringConvertor::setSource(const string &encoding) {
#endif
}
FbString StringConvertor::recode(const string &src) {
FbString StringConvertor::recode(const std::string &src) {
#ifdef HAVE_ICONV
return FbStringUtil::recode(m_iconv, src);
#else
@ -375,9 +370,9 @@ FbString StringConvertor::recode(const string &src) {
void StringConvertor::reset() {
#ifdef HAVE_ICONV
if (m_iconv != ((iconv_t)-1))
if (m_iconv != ICONV_NULL)
iconv_close(m_iconv);
m_iconv = ((iconv_t)(-1));
m_iconv = ICONV_NULL;
#endif
}