Added the StaticString class, which is a slightly modified version of the old

sstring class, who's name is nonsense and now contains code specific to
squirrelmud.  Anyway, StaticString is more lightweight than the std::string
class, but much less versitile.  It really is just like a static string, but
all nice and classey.  Great for use with the HashTable.

2 files changed, 232 insertions, 0 deletions

diff --git a/src/staticstring.cpp b/src/staticstring.cpp
new file mode 100644
index 0000000..7543178
--- /dev/null
+++ b/src/staticstring.cpp
@@ -0,0 +1,184 @@
+#include "staticstring.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+StaticString::StaticString()
+{
+        lpStr = NULL;
+        nLen = 0;
+}
+
+StaticString::StaticString( int nLength )
+{
+        lpStr = new char[nLength+1];
+        nLen = nLength;
+        memset( lpStr, 0, nLength+1 );
+}
+
+StaticString::StaticString( const char *lpNewStr, int nNewLen )
+{
+        lpStr = NULL;
+        nLen = 0;
+        setString( lpNewStr, nNewLen );
+}
+
+StaticString::StaticString( StaticString &xSrcStr, int nNewLen )
+{
+        lpStr = NULL;
+        nLen = 0;
+        setString( xSrcStr, nNewLen );
+}
+
+StaticString::~StaticString()
+{
+        if( lpStr != NULL ) delete[] lpStr;
+}
+
+char *StaticString::getString()
+{
+        return lpStr;
+}
+
+int StaticString::getLength()
+{
+        return nLen;
+}
+
+int StaticString::setLength( int nNewLength )
+{
+        char *lpNewStr = new char[nNewLength+1];
+        if( lpStr != NULL )
+        {
+                strncpy( lpNewStr, lpStr, nNewLength );
+        }
+        lpNewStr[nNewLength] = '\0';
+        if( lpStr )
+        {
+                delete[] lpStr;
+        }
+        lpStr = lpNewStr;
+        nLen = nNewLength;
+}
+
+void StaticString::setString( const char *lpNewStr, int nNewLen )
+{
+        if( lpStr )
+        {
+                delete[] lpStr;
+                lpStr = NULL;
+                nLen = 0;
+        }
+        if( nNewLen < 0 )
+        {
+                if( lpNewStr == NULL ) return;
+                nLen = strlen( lpNewStr );
+                lpStr = new char[nLen+1];
+                strcpy( lpStr, lpNewStr );
+        }
+        else
+        {
+                nLen = nNewLen;
+                lpStr = new char[nLen+1];
+                memset( lpStr, 0, nLen+1 );
+                if( lpNewStr )
+                        strncpy( lpStr, lpNewStr, nNewLen );
+        }
+}
+
+void StaticString::setString( StaticString &sNewStr, int nNewLen )
+{
+        if( lpStr )
+        {
+                delete[] lpStr;
+                lpStr = NULL;
+                nLen = 0;
+        }
+        if( nNewLen < 0 )
+        {
+                if( sNewStr.lpStr == NULL ) return;
+                nLen = sNewStr.nLen;
+                lpStr = new char[nLen+1];
+                strcpy( lpStr, sNewStr.lpStr );
+        }
+        else
+        {
+                nLen = nNewLen;
+                lpStr = new char[nLen+1];
+                memset( lpStr, 0, nLen+1 );
+                if( sNewStr.lpStr )
+                        strncpy( lpStr, sNewStr.lpStr, nNewLen );
+        }
+}
+
+StaticString &StaticString::operator=( StaticString &lpOtherStr )
+{
+        setString( lpOtherStr );
+
+        return *this;
+}
+
+StaticString &StaticString::operator=( std::string &lpOtherStr )
+{
+        setString( lpOtherStr.c_str() );
+
+        return *this;
+}
+
+StaticString &StaticString::operator=( const char *lpNewStr )
+{
+        setString( lpNewStr );
+
+        return *this;
+}
+
+StaticString::operator const char *()
+{
+        return lpStr;
+}
+
+char StaticString::getAt( int nIndex )
+{
+        if( nIndex < 0 || nIndex >= nLen )
+                return '\0';
+
+        return lpStr[nIndex];
+}
+
+void StaticString::setAt( int nIndex, char cVal )
+{
+        if( nIndex < 0 || nIndex >= nLen )
+                return;
+
+        lpStr[nIndex] = cVal;
+}
+
+char &StaticString::operator[]( int nIndex )
+{
+        if( nIndex < 0 || nIndex >= nLen )
+                return lpStr[0];
+
+        return lpStr[nIndex];
+}
+
+StaticString::operator int()
+{
+        return nLen;
+}
+
+char *StaticString::operator+( int nAmnt )
+{
+        return lpStr + nAmnt;
+}
+
+char *StaticString::operator-( int nAmnt )
+{
+        return lpStr - nAmnt;
+}
+
+void StaticString::clear()
+{
+        memset( lpStr, 0, nLen+1 );
+}
+
diff --git a/src/staticstring.h b/src/staticstring.h
new file mode 100644
index 0000000..88cae70
--- /dev/null
+++ b/src/staticstring.h
@@ -0,0 +1,48 @@
+#ifndef STATIC_STRING_H
+#define STATIC_STRING_H
+
+#include <string>
+
+/**
+ * Simple string managing class.  Allows for dynamically allocated string data
+ * along with some minor caching to speed things up when accessing your
+ * string data.  Really designed for making copies of strings easy and safe,
+ * and making accessing meta-info like length fast and reliable as well.
+ *@author Mike Buland
+ */
+class StaticString
+{
+public:
+        StaticString();
+        StaticString( const char *lpNewStr, int nNewLen=-1 );
+        StaticString( StaticString &xSrcStr, int nNewLen=-1 );
+        StaticString( int nLength );
+        ~StaticString();
+
+        char *getString();
+        int getLength();
+        int setLength( int nNewLength );
+
+        void setString( const char *lpNewStr, int nNewLen=-1 );
+        void setString( StaticString &sNewStr, int nNewLen=-1 );
+
+        char getAt( int nIndex );
+        void setAt( int nIndex, char cVal );
+
+        class StaticString &operator=( class StaticString &lpOtherStr );
+        class StaticString &operator=( std::string &lpOtherStr );
+        class StaticString &operator=( const char *lpNewStr );
+        operator const char *();
+        char &operator[]( int nIndex );
+        operator int();
+        char *operator+( int nAmnt );
+        char *operator-( int nAmnt );
+
+        void clear();
+
+private:
+        char *lpStr;
+        int nLen;
+};
+
+#endif