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// -*- C++ -*-
//========================================================================
//
// GString.h
//
// Simple variable-length string type.
//
// Copyright 1996-2002 Glyph & Cog, LLC
//
//========================================================================
#ifndef GSTRING_H
#define GSTRING_H
#include "aconf.h"
#ifdef USE_GCC_PRAGMAS
#pragma interface
#endif
#include <string.h>
class GString {
public:
// Create an empty string.
GString();
// Create a string from a C string.
GString(const char *sA);
// Create a string from <lengthA> chars at <sA>. This string
// can contain null characters.
GString(const char *sA, int lengthA);
// Create a string from <lengthA> chars at <idx> in <str>.
GString(GString *str, int idx, int lengthA);
// Copy a string.
GString(GString *str);
GString *copy() { return new GString(this); }
// Concatenate two strings.
GString(GString *str1, GString *str2);
// Convert an integer to a string.
static GString *fromInt(int x);
// 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]; }
// Change <i>th character.
void setChar(int i, char c) { s[i] = c; }
// Clear string to zero length.
GString *clear();
// Append a character or string.
GString *append(char c);
GString *append(GString *str);
GString *append(const char *str);
GString *append(const char *str, int lengthA);
// Insert a character or string.
GString *insert(int i, char c);
GString *insert(int i, GString *str);
GString *insert(int i, const char *str);
GString *insert(int i, const char *str, int lengthA);
// Delete a character or range of characters.
GString *del(int i, int n = 1);
// Convert string to all-upper/all-lower case.
GString *upperCase();
GString *lowerCase();
// Compare two strings: -1:< 0:= +1:>
// These functions assume the strings do not contain null characters.
int cmp(GString *str) { return strcmp(s, str->getCString()); }
int cmpN(GString *str, int n) { return strncmp(s, str->getCString(), n); }
int cmp(const char *sA) { return strcmp(s, sA); }
int cmpN(const char *sA, int n) { return strncmp(s, sA, n); }
private:
int length;
char *s;
void resize(int length1);
};
#endif
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