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Given below is String.h file and refer also to Appendix A String.h
#ifndef __STRING_H_
#define __STRING_H_
#include <iostream> // do not use iostream as program becomes bulky..
#include <stdio.h> // for FILE and sprintf()
#include <list.h> // for list
const short INITIAL_SIZE = 50;
const short NUMBER_LENGTH = 300;
const int MAX_ISTREAM_SIZE = 2048;
class StringBuffer;
// a small class with a VERY MINIMUM of functions and variables...
// This class to be kept small...
class String
{
public:
String();
String(char bb[]); // needed by operator+
String(char bb[], int start, int slength); // subset of chars
String(int bb); // needed by operator+
String(unsigned long bb); // needed by operator+
String(long bb); // needed by operator+
String(float bb); // needed by operator+
String(double bb); // needed by operator+
String(const String & rhs); // Copy Constructor needed by operator+
String(StringBuffer sb); // Java compatibility
String(int bb, bool dummy); // for StringBuffer class
virtual ~String(); // Made virtual so that when base class is deleted
// then the derived class destructor is called.
char *val() {return sval;} // Not safe to make sval public
// Functions below imitate Java language's String object
unsigned long length() { return strlen(sval); }
char charAt(int where);
void getChars(int sourceStart, int sourceEnd,
char target[], int targetStart);
char* toCharArray();
char* getBytes();
bool equals(String str2); // See also == operator
bool equals(char *str2); // See also == operator
bool equalsIgnoreCase(String str2);
bool regionMatches(int startIndex, String str2,
int str2StartIndex, int numChars);
bool regionMatches(bool ignoreCase, int startIndex,
String str2, int str2StartIndex, int numChars);
String toUpperCase();
String toLowerCase();
bool startsWith(String str2);
bool startsWith(char *str2);
bool endsWith(String str2);
bool endsWith(char *str2);
int compareTo(String str2);
int compareTo(char *str2);
int compareToIgnoreCase(String str2);
int compareToIgnoreCase(char *str2);
int indexOf(char ch, int startIndex = 0);
int indexOf(char *str2, int startIndex = 0);
int indexOf(String str2, int startIndex = 0);
int lastIndexOf(char ch, int startIndex = 0);
int lastIndexOf(char *str2, int startIndex = 0);
int lastIndexOf(String str2, int startIndex = 0);
String substring(int startIndex, int endIndex = 0);
String replace(char original, char replacement);
String replace(char *original, char *replacement);
String trim(); // See also overloaded trim()
String concat(String str2); // See also operator +
String concat(char *str2); // See also operator +
String reverse(); // See also overloaded reverse()
String deleteCharAt(int loc);
String deleteStr(int startIndex, int endIndex); // Java's "delete()"
String valueOf(char ch)
{char aa[2]; aa[0]=ch; aa[1]=0; return String(aa);}
String valueOf(char chars[]){ return String(chars);}
String valueOf(char chars[], int startIndex, int numChars);
String valueOf(bool tf)
{if (tf) return String("true"); else return String("false");}
String valueOf(int num){ return String(num);}
String valueOf(long num){ return String(num);}
String valueOf(float num) {return String(num);}
String valueOf(double num) {return String(num);}
// See also StringBuffer class in this file given below
// ---- End of Java like String object functions -----
//////////////////////////////////////////////////////
// List of additonal functions not in java
//////////////////////////////////////////////////////
String ltrim();
void ltrim(bool dummy); // dummy to get different signature
String rtrim();
void rtrim(bool dummy); // dummy to get different signature
void chopall(char ch='\n'); // removes trailing character 'ch'
void chop(); // removes one trailing character
void roundf(float input_val, short precision);
void decompose_float(long *integral, long *fraction);
void roundd(double input_val, short precision);
void decompose_double(long *integral, long *fraction);
void explode(char *seperator); // see also token() and overloaded explode()
String *explode(int & strcount, char seperator = ' '); // see also token()
void implode(char *glue);
void join(char *glue);
String repeat(char *input, unsigned int multiplier);
String tr(char *from, char *to); // translate characters
String center(int padlength, char padchar = ' ');
String space(int number = 0, char padchar = ' ');
String xrange(char start, char end);
String compress(char *list = " ");
String left(int slength = 0, char padchar = ' ');
String right(int slength = 0, char padchar = ' ');
String overlay(char *newstr, int start = 0, int slength = 0, char padchar = ' ');
String at(char *regx); // matches first match of regx
String before(char *regx); // returns string before regx
String after(char *regx); // returns string after regx
String mid(int startIndex = 0, int length = 0);
bool isNull();
bool isInteger();
bool isInteger(int pos);
bool isNumeric();
bool isNumeric(int pos);
bool isEmpty(); // same as length() == 0
bool isUpperCase();
bool isUpperCase(int pos);
bool isLowerCase();
bool isLowerCase(int pos);
bool isWhiteSpace();
bool isWhiteSpace(int pos);
bool isBlackSpace();
bool isBlackSpace(int pos);
bool isAlpha();
bool isAlpha(int pos);
bool isAlphaNumeric();
bool isAlphaNumeric(int pos);
bool isPunct();
bool isPunct(int pos);
bool isPrintable();
bool isPrintable(int pos);
bool isHexDigit();
bool isHexDigit(int pos);
bool isCntrl();
bool isCntrl(int pos);
bool isGraph();
bool isGraph(int pos);
void clear();
int toInteger();
long parseLong();
double toDouble();
String token(char seperator = ' '); // ref StringTokenizer, explode()
String crypt(char *original, char *salt);
String getline(FILE *infp = stdin); // see also putline()
//String getline(fstream *infp = stdin); // see also putline()
void putline(FILE *outfp = stdout); // see also getline()
//void putline(fstream *outfp = stdout); // see also getline()
void swap(String aa, String bb); // swap aa to bb
String *sort(String aa[]); // sorts array of strings
String sort(int startIndex = 0, int length = 0); // sorts characters inside a string
int freq(char ch); // returns the number of distinct, nonoverlapping matches
void Format(const char *fmt, ...);
String replace (int startIndex, int endIndex, String str);
void substring(int startIndex, int endIndex, bool dummy);
void reverse(bool dummy); // dummy to get different signature
String deleteCharAt(int loc, bool dummy);
String deleteStr(int startIndex, int endIndex, bool dummy);
void trim(bool dummy); // dummy to get different signature
String insert(int index, String str2);
String insert(int index, String str2, bool dummy);
String insert(int index, char ch);
String insert(int index, char ch, bool dummy);
String insert(char *newstr, int start = 0, int length = 0, char padchar = ' ');
// required by java's StringBuffer
void ensureCapacity(int capacity);
void setLength(int len);
void setCharAt(int where, char ch);
// required by java's Integer class, Long, Double classes
int parseInt(String ss) {return ss.toInteger();}
int parseInt(char *ss)
{String tmpstr(ss); return tmpstr.toInteger();}
long parseLong(String ss) {return ss.parseLong();}
long parseLong(char *ss)
{String tmpstr(ss); return tmpstr.parseLong();}
float floatValue() {return (float) toDouble(); }
double doubleValue() {return toDouble(); }
///////////////////////////////////////////////
// List of duplicate function names
///////////////////////////////////////////////
// char * c_str() // use val()
// bool find(); // Use regionMatches()
// bool search(); // Use regionMatches()
// bool matches(); // Use regionMatches()
// int rindex(String str2, int startIndex = 0); Use lastIndexOf()
// String blanks(int slength); // Use repeat()
// String append(String str2); // Use concat() or + operator
// String prepend(String str2); // Use + operator. See also append()
// String split(char seperator = ' '); // Use token()
bool contains(char *str2, int startIndex = 0); // use indexOf()
// void empty(); Use is_empty()
// void vacuum(); Use clear()
// void erase(); Use clear()
// void zero(); Use clear()
// bool is_float(); Use is_numeric();
// bool is_decimal(); Use is_numeric();
// bool is_Digit(); Use is_numeric();
// float float_value(); Use toDouble();
// float tofloat(); Use toDouble();
// double double_value(); Use toDouble();
// double numeric_value(); Use toDouble();
// int int_value(); Use toInteger()
// int tonumber(); Use toInteger()
// String get(); Use substring() or val() but prefer java's substring
// String getFrom(); Use substring() or val() but prefer java's substring
// String head(int len); Use substring(0, len)
// String tail(int len); Use substring(length()-len, length())
// String cut(); Use deleteCharAt() or deleteStr()
// String cutFrom(); Use deleteCharAt() or deleteStr()
// String paste(); Use insert()
// String fill(); Use replace()
// char firstChar(); // Use substring(0, 1);
// char lastChar(); // Use substring(length()-1, length());
// String findNext(); Use token()
// begin(); iterator. Use operator [ii]
// end(); iterator. Use operator [ii]
// copy(); Use assignment = operator, String aa = bb;
// clone(); Use assignment = operator, String aa = bb;
// All Operators ...
String operator+ (const String & rhs);
friend String operator+ (const String & lhs, const String & rhs);
String& operator+= (const String & rhs); // using reference will be faster
String& operator= (const String & rhs); // using reference will be faster
bool operator== (const String & rhs); // using reference will be faster
bool operator== (const char *rhs);
bool operator!= (const String & rhs);
bool operator!= (const char *rhs);
char operator [] (unsigned long Index) const;
char& operator [] (unsigned long Index);
friend ostream & operator<< (ostream & Out, const String & str2);
friend istream & operator>> (istream & In, String & str2);
static list<String> explodeH; // list head
protected:
char *sval; // Not safe to make sval public
inline void verifyIndex(unsigned long index) const;
inline void verifyIndex(unsigned long index, char *aa) const;
void _str_cat(char bb[]);
void _str_cat(int bb);
void _str_cat(unsigned long bb);
void _str_cat(float bb);
private:
// Note: All the private variables and functions begin
// with _ (underscore)
//static String *_global_String; // for use in add operator
//inline void _free_glob(String **aa);
void _str_cpy(char bb[]);
void _str_cpy(int bb); // itoa
void _str_cpy(unsigned long bb);
void _str_cpy(float bb); // itof
bool _equalto(const String & rhs, bool type = false);
bool _equalto(const char *rhs, bool type = false);
String *_pString; // temporary pointer for internal use..
inline void _allocpString();
inline void _reverse();
inline void _deleteCharAt(int loc);
inline void _deleteStr(int startIndex, int endIndex);
inline void _trim();
inline void _ltrim();
inline void _rtrim();
inline void _substring(int startIndex, int endIndex);
};
// Imitate Java's StringBuffer object
// This class is provided so that the Java code is
// portable to C++, requiring minimum code changes
// Note: While coding in C++ DO NOT use this class StringBuffer,
// this is provided only for compiling code written in Java
// which is cut/pasted inside C++ code.
class StringBuffer: public String
{
public:
StringBuffer();
StringBuffer(int size);
StringBuffer(String str);
~StringBuffer();
int capacity() {return strlen(sval);}
StringBuffer append(String str2)
{ *this += str2; return *this;} // See also operator +
StringBuffer append(char *str2)
{ *this += str2; return *this;} // See also operator +
StringBuffer append(int bb)
{ *this += bb; return *this;} // See also operator +
StringBuffer append(unsigned long bb)
{ *this += bb; return *this;} // See also operator +
StringBuffer append(float bb)
{ *this += bb; return *this;} // See also operator +
StringBuffer append(double bb)
{ *this += bb; return *this;} // See also operator +
StringBuffer insert(int index, String str2)
{ return String::insert(index, str2, true);}
StringBuffer insert(int index, char ch)
{ return String::insert(index, ch, true);}
StringBuffer reverse()
{ String::reverse(true); return *this;}
// Java's "delete()". Cannot use name delete in C++
StringBuffer deleteStr(int startIndex, int endIndex)
{ String::deleteStr(startIndex, endIndex, true); return *this;}
StringBuffer deleteCharAt(int loc)
{ String::deleteCharAt(loc, true); return *this;}
StringBuffer substring(int startIndex, int endIndex = 0)
{ String::substring(startIndex, endIndex, true); return *this;}
};
static String Integer("0"); // java's Integer.parseInt(String);
static String Long("0"); // java's Long.parseLong(String);
// Imitate java's Float class and Float.floatValue()
// provided to compile java code in C++
class Float: public String
{
public:
Float(String str);
Float valueOf(String str2) {return Float(str2);}
float floatValue() {return (float) toDouble(); }
};
// Imitate java's Double class and Double.doubleValue()
// provided to compile java code in C++
class Double: public String
{
public:
Double(String str);
Double valueOf(String str2) {return Double(str2);}
double doubleValue() {return toDouble(); }
};
// Imitate java's StringTokenizer class
// provided to compile java code in C++ and vice-versa
class StringTokenizer: public String
{
public:
StringTokenizer(String str);
StringTokenizer(String str, String delimiters);
StringTokenizer(String str, String delimiters, bool dflag);
~StringTokenizer();
int countTokens();
bool hasMoreElements();
bool hasMoreTokens();
String nextElement(); // in java returns type 'Object'
String nextToken();
String nextToken(String delimiters);
private:
int _current_position; // current index on string
int _total_tokens;
int _remaining_tokens;
char * _listofdl; // list of delimiters
char * _workstr; // temp work string
char * _origstr; // original string passed
bool _dflag; // delimiter flag
inline void _prepworkstr(char *delimiters = NULL);
};
// Imitate java's StringReader class
// provided to compile java code in C++
class StringReader: public String
{
public:
StringReader(String str);
void close() {} // close the stream
void mark(int readAheadLimit);
bool markSupported() {return true;} // tell whether this stream supports the mark() operation, which it does
int read();
int read(char cbuf[], int offset, int length);
bool ready() {return true;} // tell whether this stream is ready to read
void reset();
long skip(long ii);
private:
unsigned long _curpos;
unsigned long _mark_pos;
};
// Imitate java's StringWriter class
// provided to compile java code in C++
class StringWriter: public String
{
public:
StringWriter();
StringWriter(int bufferSize);
void close() {clear();}
void flush() {clear();}
StringBuffer getBuffer() {return (StringBuffer) *this;}
String toString() {return (String) *this;}
void write(int);
void write(String);
void write(char *str1);
void write(char str1[], int startIndex, int endIndex);
void write(String str1, int startIndex, int endIndex);
};
// Global variables are defined in String.cpp
#endif // __STRING_H_
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