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// // Author : Al Dev Email: alavoor@yahoo.com // Use string class or String class // // To prevent memory leaks - a char class to manage character variables // Always prefer to use String or string class // instead of char[] or char * // #ifndef __STRING_H_ #define __STRING_H_ //#include <iostream> // do not use iostream as program becomes bulky.. //#include <stdlib.h> // for free() amd malloc() #include <string.h> // for strcpy() #include <ctype.h> // for isspace() #include <stdio.h> // for sprintf() #include <list.h> // for sprintf() #include <math.h> // for modf(), rint() #include "my_malloc.h" #include "debug.h" // debug_(name, value) debug2_(name, value, LOG_YES) const short INITIAL_SIZE = 50; const short NUMBER_LENGTH = 70; 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 ~String(); 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_