725 lines
12 KiB
C++
725 lines
12 KiB
C++
/*
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Copyright (C) 1999-2006 Id Software, Inc. and contributors.
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For a list of contributors, see the accompanying CONTRIBUTORS file.
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This file is part of GtkRadiant.
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GtkRadiant is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GtkRadiant is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GtkRadiant; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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//need to rewrite this
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#ifndef __UTIL_STR_H__
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#define __UTIL_STR_H__
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#include <assert.h>
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#include <string.h>
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#include <stdio.h>
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#if GDEF_COMPILER_MSVC
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#pragma warning(disable : 4710) // function 'blah' not inlined
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#endif
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void TestStringClass();
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class strdata
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{
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public:
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strdata () : len( 0 ), refcount( 0 ), data( NULL ), alloced( 0 ) {
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}
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~strdata (){
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if ( data ) {
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delete [] data;
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}
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}
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void AddRef() {
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refcount++;
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}
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bool DelRef(){ // True if killed
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refcount--;
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if ( refcount < 0 ) {
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delete this;
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return true;
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}
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return false;
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}
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int len;
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int refcount;
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char *data;
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int alloced;
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};
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class idStr {
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protected:
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strdata *m_data;
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void EnsureAlloced( int, bool keepold = true );
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void EnsureDataWritable();
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public:
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~idStr();
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idStr();
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idStr( const char *text );
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idStr( const idStr& string );
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idStr( const idStr string, int start, int end );
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idStr( const char ch );
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idStr( const int num );
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idStr( const float num );
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idStr( const unsigned num );
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int length( void ) const;
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int allocated( void ) const;
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const char * c_str( void ) const;
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void append( const char *text );
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void append( const idStr& text );
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char operator[]( int index ) const;
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char& operator[]( int index );
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void operator=( const idStr& text );
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void operator=( const char *text );
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friend idStr operator+( const idStr& a, const idStr& b );
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friend idStr operator+( const idStr& a, const char *b );
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friend idStr operator+( const char *a, const idStr& b );
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friend idStr operator+( const idStr& a, const float b );
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friend idStr operator+( const idStr& a, const int b );
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friend idStr operator+( const idStr& a, const unsigned b );
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friend idStr operator+( const idStr& a, const bool b );
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friend idStr operator+( const idStr& a, const char b );
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idStr& operator+=( const idStr& a );
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idStr& operator+=( const char *a );
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idStr& operator+=( const float a );
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idStr& operator+=( const char a );
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idStr& operator+=( const int a );
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idStr& operator+=( const unsigned a );
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idStr& operator+=( const bool a );
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friend bool operator==( const idStr& a, const idStr& b );
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friend bool operator==( const idStr& a, const char *b );
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friend bool operator==( const char *a, const idStr& b );
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friend bool operator!=( const idStr& a, const idStr& b );
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friend bool operator!=( const idStr& a, const char *b );
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friend bool operator!=( const char *a, const idStr& b );
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operator const char *() const;
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operator const char *();
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int icmpn( const char *text, int n ) const;
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int icmpn( const idStr& text, int n ) const;
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int icmp( const char *text ) const;
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int icmp( const idStr& text ) const;
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int cmpn( const char *text, int n ) const;
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int cmpn( const idStr& text, int n ) const;
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int cmp( const char *text ) const;
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int cmp( const idStr& text ) const;
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void tolower( void );
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void toupper( void );
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static char *tolower( char *s1 );
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static char *toupper( char *s1 );
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static int icmpn( const char *s1, const char *s2, int n );
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static int icmp( const char *s1, const char *s2 );
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static int cmpn( const char *s1, const char *s2, int n );
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static int cmp( const char *s1, const char *s2 );
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static void snprintf( char *dst, int size, const char *fmt, ... );
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static bool isNumeric( const char *str );
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bool isNumeric( void ) const;
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void CapLength( int );
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void BackSlashesToSlashes();
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};
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inline idStr::~idStr(){
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if ( m_data ) {
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m_data->DelRef();
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m_data = NULL;
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}
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}
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inline idStr::idStr() : m_data( NULL ){
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EnsureAlloced( 1 );
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m_data->data[ 0 ] = 0;
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}
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inline idStr::idStr
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(
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const char *text
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) : m_data( NULL ){
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int len;
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assert( text );
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if ( text ) {
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len = strlen( text );
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EnsureAlloced( len + 1 );
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strcpy( m_data->data, text );
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m_data->len = len;
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}
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else
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{
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EnsureAlloced( 1 );
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m_data->data[ 0 ] = 0;
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m_data->len = 0;
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}
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}
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inline idStr::idStr
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(
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const idStr& text
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) : m_data( NULL ){
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m_data = text.m_data;
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m_data->AddRef();
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}
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inline idStr::idStr
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(
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const idStr text,
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int start,
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int end
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) : m_data( NULL ){
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int i;
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int len;
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if ( end > text.length() ) {
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end = text.length();
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}
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if ( start > text.length() ) {
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start = text.length();
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}
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len = end - start;
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if ( len < 0 ) {
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len = 0;
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}
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EnsureAlloced( len + 1 );
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for ( i = 0; i < len; i++ )
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{
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m_data->data[ i ] = text[ start + i ];
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}
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m_data->data[ len ] = 0;
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m_data->len = len;
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}
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inline idStr::idStr
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(
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const char ch
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) : m_data( NULL ){
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EnsureAlloced( 2 );
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m_data->data[ 0 ] = ch;
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m_data->data[ 1 ] = 0;
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m_data->len = 1;
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}
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inline idStr::idStr
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(
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const float num
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) : m_data( NULL ){
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char text[ 32 ];
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int len;
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sprintf( text, "%.3f", num );
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len = strlen( text );
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EnsureAlloced( len + 1 );
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strcpy( m_data->data, text );
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m_data->len = len;
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}
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inline idStr::idStr
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(
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const int num
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) : m_data( NULL ){
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char text[ 32 ];
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int len;
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sprintf( text, "%d", num );
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len = strlen( text );
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EnsureAlloced( len + 1 );
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strcpy( m_data->data, text );
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m_data->len = len;
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}
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inline idStr::idStr
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(
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const unsigned num
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) : m_data( NULL ){
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char text[ 32 ];
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int len;
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sprintf( text, "%u", num );
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len = strlen( text );
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EnsureAlloced( len + 1 );
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strcpy( m_data->data, text );
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m_data->len = len;
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}
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inline int idStr::length( void ) const {
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return ( m_data != NULL ) ? m_data->len : 0;
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}
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inline int idStr::allocated( void ) const {
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return ( m_data != NULL ) ? m_data->alloced + sizeof( *m_data ) : 0;
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}
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inline const char *idStr::c_str( void ) const {
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assert( m_data );
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return m_data->data;
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}
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inline void idStr::append
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(
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const char *text
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){
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int len;
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assert( text );
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if ( text ) {
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len = length() + strlen( text );
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EnsureAlloced( len + 1 );
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strcat( m_data->data, text );
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m_data->len = len;
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}
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}
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inline void idStr::append
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(
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const idStr& text
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){
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int len;
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len = length() + text.length();
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EnsureAlloced( len + 1 );
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strcat( m_data->data, text.c_str() );
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m_data->len = len;
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}
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inline char idStr::operator[]( int index ) const {
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assert( m_data );
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if ( !m_data ) {
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return 0;
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}
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// don't include the '/0' in the test, because technically, it's out of bounds
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assert( ( index >= 0 ) && ( index < m_data->len ) );
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// In release mode, give them a null character
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// don't include the '/0' in the test, because technically, it's out of bounds
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if ( ( index < 0 ) || ( index >= m_data->len ) ) {
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return 0;
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}
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return m_data->data[ index ];
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}
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inline char& idStr::operator[]
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(
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int index
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){
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// Used for result for invalid indices
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static char dummy = 0;
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assert( m_data );
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// We don't know if they'll write to it or not
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// if it's not a const object
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EnsureDataWritable();
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if ( !m_data ) {
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return dummy;
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}
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// don't include the '/0' in the test, because technically, it's out of bounds
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assert( ( index >= 0 ) && ( index < m_data->len ) );
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// In release mode, let them change a safe variable
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// don't include the '/0' in the test, because technically, it's out of bounds
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if ( ( index < 0 ) || ( index >= m_data->len ) ) {
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return dummy;
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}
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return m_data->data[ index ];
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}
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inline void idStr::operator=
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(
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const idStr& text
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){
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// adding the reference before deleting our current reference prevents
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// us from deleting our string if we are copying from ourself
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text.m_data->AddRef();
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m_data->DelRef();
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m_data = text.m_data;
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}
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inline void idStr::operator=
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(
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const char *text
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){
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int len;
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assert( text );
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if ( !text ) {
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// safe behaviour if NULL
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EnsureAlloced( 1, false );
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m_data->data[0] = 0;
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m_data->len = 0;
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return;
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}
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if ( !m_data ) {
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len = strlen( text );
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EnsureAlloced( len + 1, false );
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strcpy( m_data->data, text );
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m_data->len = len;
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return;
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}
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if ( text == m_data->data ) {
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return; // Copying same thing. Punt.
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}
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// If we alias and I don't do this, I could corrupt other strings... This
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// will get called with EnsureAlloced anyway
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EnsureDataWritable();
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// Now we need to check if we're aliasing..
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if ( text >= m_data->data && text <= m_data->data + m_data->len ) {
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// Great, we're aliasing. We're copying from inside ourselves.
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// This means that I don't have to ensure that anything is alloced,
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// though I'll assert just in case.
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int diff = text - m_data->data;
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int i;
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assert( strlen( text ) < (unsigned) m_data->len );
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for ( i = 0; text[i]; i++ )
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{
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m_data->data[i] = text[i];
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}
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m_data->data[i] = 0;
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m_data->len -= diff;
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return;
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}
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len = strlen( text );
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EnsureAlloced( len + 1, false );
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strcpy( m_data->data, text );
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m_data->len = len;
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}
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inline idStr operator+
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(
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const idStr& a,
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const idStr& b
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){
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idStr result( a );
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result.append( b );
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return result;
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}
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inline idStr operator+
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(
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const idStr& a,
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const char *b
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){
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idStr result( a );
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result.append( b );
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return result;
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}
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inline idStr operator+
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(
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const char *a,
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const idStr& b
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){
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idStr result( a );
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result.append( b );
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return result;
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}
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inline idStr operator+
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(
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const idStr& a,
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const bool b
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){
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idStr result( a );
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result.append( b ? "true" : "false" );
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return result;
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}
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inline idStr operator+
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(
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const idStr& a,
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const char b
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){
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char text[ 2 ];
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text[ 0 ] = b;
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text[ 1 ] = 0;
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return a + text;
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}
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inline idStr& idStr::operator+=
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(
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const idStr& a
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){
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append( a );
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return *this;
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}
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inline idStr& idStr::operator+=
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(
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const char *a
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){
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append( a );
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return *this;
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}
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inline idStr& idStr::operator+=
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(
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const char a
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){
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char text[ 2 ];
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text[ 0 ] = a;
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text[ 1 ] = 0;
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append( text );
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return *this;
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}
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inline idStr& idStr::operator+=
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(
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const bool a
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){
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append( a ? "true" : "false" );
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return *this;
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}
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inline bool operator==
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(
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const idStr& a,
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const idStr& b
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){
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return ( !strcmp( a.c_str(), b.c_str() ) );
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}
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inline bool operator==
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(
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const idStr& a,
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const char *b
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){
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assert( b );
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if ( !b ) {
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return false;
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}
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return ( !strcmp( a.c_str(), b ) );
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}
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inline bool operator==
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(
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const char *a,
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const idStr& b
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){
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assert( a );
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if ( !a ) {
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return false;
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}
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return ( !strcmp( a, b.c_str() ) );
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}
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inline bool operator!=
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(
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const idStr& a,
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const idStr& b
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){
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return !( a == b );
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}
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inline bool operator!=
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(
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const idStr& a,
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const char *b
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){
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return !( a == b );
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}
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inline bool operator!=
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(
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const char *a,
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const idStr& b
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){
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return !( a == b );
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}
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inline int idStr::icmpn
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(
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const char *text,
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int n
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) const {
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assert( m_data );
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assert( text );
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return idStr::icmpn( m_data->data, text, n );
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}
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inline int idStr::icmpn
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(
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const idStr& text,
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int n
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) const {
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assert( m_data );
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assert( text.m_data );
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return idStr::icmpn( m_data->data, text.m_data->data, n );
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}
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inline int idStr::icmp
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(
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const char *text
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) const {
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assert( m_data );
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assert( text );
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return idStr::icmp( m_data->data, text );
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}
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inline int idStr::icmp
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|
(
|
|
const idStr& text
|
|
) const {
|
|
assert( c_str() );
|
|
assert( text.c_str() );
|
|
|
|
return idStr::icmp( c_str(), text.c_str() );
|
|
}
|
|
|
|
inline int idStr::cmp
|
|
(
|
|
const char *text
|
|
) const {
|
|
assert( m_data );
|
|
assert( text );
|
|
|
|
return idStr::cmp( m_data->data, text );
|
|
}
|
|
|
|
inline int idStr::cmp
|
|
(
|
|
const idStr& text
|
|
) const {
|
|
assert( c_str() );
|
|
assert( text.c_str() );
|
|
|
|
return idStr::cmp( c_str(), text.c_str() );
|
|
}
|
|
|
|
inline int idStr::cmpn
|
|
(
|
|
const char *text,
|
|
int n
|
|
) const {
|
|
assert( c_str() );
|
|
assert( text );
|
|
|
|
return idStr::cmpn( c_str(), text, n );
|
|
}
|
|
|
|
inline int idStr::cmpn
|
|
(
|
|
const idStr& text,
|
|
int n
|
|
) const {
|
|
assert( c_str() );
|
|
assert( text.c_str() );
|
|
|
|
return idStr::cmpn( c_str(), text.c_str(), n );
|
|
}
|
|
|
|
inline void idStr::tolower
|
|
(
|
|
void
|
|
){
|
|
assert( m_data );
|
|
|
|
EnsureDataWritable();
|
|
|
|
idStr::tolower( m_data->data );
|
|
}
|
|
|
|
inline void idStr::toupper
|
|
(
|
|
void
|
|
){
|
|
assert( m_data );
|
|
|
|
EnsureDataWritable();
|
|
|
|
idStr::toupper( m_data->data );
|
|
}
|
|
|
|
inline bool idStr::isNumeric
|
|
(
|
|
void
|
|
) const {
|
|
assert( m_data );
|
|
return idStr::isNumeric( m_data->data );
|
|
}
|
|
|
|
inline idStr::operator const char *() {
|
|
return c_str();
|
|
}
|
|
|
|
inline idStr::operator const char *
|
|
(
|
|
void
|
|
) const {
|
|
return c_str();
|
|
}
|
|
|
|
#endif
|