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GString
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1996-06-08
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//========================================================================
//
// GString.h
//
// Simple variable-length string type.
//
// Copyright 1996 Derek B. Noonburg
//
//========================================================================
#ifndef GSTRING_H
#define GSTRING_H
#ifdef __GNUC__
//#pragma interface
#endif
#include <string.h>
class GString {
public:
// Create an empty string.
GString();
// Create a string from a C string.
GString(char *s1);
// Create a string from <length1> chars at <s1>. This string
// can contain null characters.
GString (char *s1, int length1);
// Copy a string.
GString(GString *str);
GString *copy() { return new GString(this); }
// Concatenate two strings.
GString(GString *str1, GString *str2);
// Destructor.
~GString();
// Get length.
int getLength() { return length; }
// Get C string.
char *getCString() { return s; }
// Get <i>th character.
char getChar(int i) { return s[i]; }
// Clear string to zero length.
GString *clear();
// Append a character or string.
GString *append(char c);
GString *append(GString *str);
GString *append(char *str);
// Insert a character or string.
GString *insert(int i, char c);
GString *insert(int i, GString *str);
GString *insert(int i, char *str);
// Delete a character or range of characters.
GString *del(int i, int n = 1);
// Compare two strings: -1:< 0:= +1:>
// These function assume the strings do not contain null characters.
int cmp(GString *str) { return strcmp(s, str->getCString()); }
int cmp(char *s1) { return strcmp(s, s1); }
private:
int length;
char *s;
void resize(int length1);
};
#endif