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Diffstat (limited to 'src/common/common/number.cpp')
| -rw-r--r-- | src/common/common/number.cpp | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/src/common/common/number.cpp b/src/common/common/number.cpp new file mode 100644 index 0000000..12fcac0 --- /dev/null +++ b/src/common/common/number.cpp @@ -0,0 +1,201 @@ +/*************************************************************************** + * Copyright (C) 2005-2006 Nicolas Hadacek <hadacek@kde.org> * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + ***************************************************************************/ +#include "number.h" + +#include "common/global/global.h" +#include "misc.h" +#if !defined(NO_KDE) +# include <kglobal.h> +#endif + +//----------------------------------------------------------------------------- +const NumberBase::Data NumberBase::DATA[Nb_Types] = { + { 10, "", I18N_NOOP("Decimal"), "dec" }, + { 16, "0x", I18N_NOOP("Hexadecimal"), "hex" }, + { 2, "0b", I18N_NOOP("Binary"), "bin" }, + { 8, "o", I18N_NOOP("Octal"), "oct" }, + { 256, "", I18N_NOOP("String"), "str" } +}; + +char toChar(NumberBase base, uint value) +{ + Q_ASSERT( value<base.data().base ); + if ( value>=base.data().base ) qDebug("toChar %u (%u)", value, base.data().base); + if ( base==NumberBase::String ) { + if ( !isprint(value) ) return '.'; + return value; + } + if ( value<=9 ) return '0' + value; + return 'A' + value - 10; +} + +QString toString(NumberBase base, ulong value, uint nbChars) +{ + ulong tmp = value; + QString s; + s.fill(0, nbChars); + for (uint i=0; i<nbChars; i++) { + s[nbChars-i-1] = toChar(base, uint(value % base.data().base)); + value /= base.data().base; + } + Q_ASSERT( value==0 ); + if ( value!=0 ) qDebug("toString %s nbChars=%u", toLabel(base, tmp, ::nbChars(base, tmp)).latin1(), nbChars); + return s; +} + +QString toLabel(NumberBase base, ulong value, uint nbChars) +{ + if ( base==NumberBase::String ) return "\'" + toString(base, value, nbChars) + "\'"; + return base.data().prefix + toString(base, value, nbChars); +} + +uint nbChars(NumberBase base, ulong value) +{ + uint nb = 1; + for (;;) { + value /= base.data().base; + if ( value==0 ) break; + nb++; + } + return nb; +} + +ulong maxValue(NumberBase base, uint nbChars) +{ + uint v = 1; + for (uint i=0; i<nbChars; i++) v *= base.data().base; + return v - 1; +} + +ulong fromString(NumberBase base, const QCString &s, bool *ok) +{ + return fromString(base, s.data(), s.length(), ok); +} +ulong fromString(NumberBase base, const QString &s, bool *ok) +{ +#if QT_VERSION<0x040000 + return fromString(base, s.latin1(), s.length(), ok); +#else + QByteArray a = s.toLatin1(); + return fromString(base, a.data(), a.count(), ok); +#endif +} + +ulong fromLabel(NumberBase base, const QString &s, bool *ok) +{ +#if QT_VERSION<0x040000 + return fromLabel(base, s.latin1(), s.length(), ok); +#else + QByteArray a = s.toLatin1(); + return fromLabel(base, a.data(), a.count(), ok); +#endif +} + +ulong fromLabel(NumberBase base, const QString &s, uint nbChars, bool *ok) +{ + if ( uint(s.length())!=nbChars+strlen(base.data().prefix) ) { + if (ok) *ok = false; + return 0; + } + return fromLabel(base, s, ok); +} + +ulong fromLabel(NumberBase base, const char *s, uint size, bool *ok) +{ + if (ok) *ok = false; + if ( s==0 ) return 0; + uint psize = (base==NumberBase::String ? 1 : strlen(base.data().prefix)); + uint ssize = (base==NumberBase::String ? 1 : 0); + if ( size<=(psize+ssize) ) return 0; + if ( base==NumberBase::String ) { + if ( s[0]=='"' ) { + if ( s[size-1]!='"' ) return 0; + } else if ( s[0]=='\'' ) { + if ( s[size-1]!='\'' ) return 0; + } else return 0; + } else for (uint i=0; i<psize; i++) if ( s[i]!=base.data().prefix[i] ) return 0; + return fromString(base, s+psize, size-psize-ssize, ok); +} + +ulong fromAnyLabel(const QString &s, bool *ok) +{ + uint v = 0; + bool bok = false; + FOR_EACH(NumberBase, base) { + v = fromLabel(base, s.lower(), &bok); + if (bok) break; + } + if ( !bok ) v = fromString(NumberBase::Dec, s, &bok); + if ( !bok ) { + if (ok) *ok = false; + return 0; + } + if (ok) *ok = true; + return v; +} + +uint fromChar(NumberBase base, char c, bool *ok) +{ + uint v = 0; + if ( base==NumberBase::String ) { + if (ok) *ok = true; + return c; + } + if ( c>='0' && c<='9' ) v = c - '0'; + else if ( c>='A' && c<'Z' ) v = 10 + c - 'A'; + else if ( c>='a' && c<'z' ) v = 10 + c - 'a'; + else { + if (ok) *ok = false; + return 0; + } + if (ok) *ok = ( v<base.data().base ); + return v; +} + +ulong fromString(NumberBase base, const char *s, uint size, bool *ok) +{ + if (ok) *ok = false; + if ( s==0 || size==0 ) return 0; + ulong v = 0; + for (uint i=0; i<size; i++) { + v *= base.data().base; + bool bok; + v += fromChar(base, s[i], &bok); + if ( !bok ) return 0; + } + if (ok) *ok = true; + return v; +} + +QString toLabels(NumberBase base, const QMemArray<uint> &values, uint nbChars) +{ + QString s = "["; + for (uint i=0; i<values.count(); i++) { + if ( i!=0 ) s += ' '; + s += toLabel(base, values[i], nbChars); + } + s += "]"; + return s; +} + +QString formatNumber(ulong v) +{ +#if defined(NO_KDE) + return QString::number(v); +#else + return KGlobal::locale()->formatNumber(v, 0); +#endif +} + +QByteArray toAscii(const QString &s) +{ + QByteArray a(s.length()); + for (uint i=0; i<uint(s.length()); i++) a[i] = s[i].latin1(); + return a; +} |