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readline.cpp File Reference

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <assert.h>
#include <string.h>
#include <malloc.h>
#include "readline.h"

Go to the source code of this file.

Defines
#define	HISTORY_SIZE   8
Functions
void	addline (char *s)
	Add a new line to the history buffer.
char *	getline (int line)
	Get a line from the history buffer.
char *	readline (char *s, int n)
	A simple version of the GNU readline function.
Variables
char *	history [HISTORY_SIZE]
int	numlines = 0

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Define Documentation

#define HISTORY_SIZE   8

Definition at line 29 of file readline.cpp. Referenced by addline().

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Function Documentation

void addline (  char *    s )  [static]

Add a new line to the history buffer. If the history is already full, the oldest entry gets discarded. Parameters: s  string to add Definition at line 42 of file readline.cpp. References history, HISTORY_SIZE, and numlines. Referenced by readline().

char* getline (  int    line )  [static]

Get a line from the history buffer. Parameters: line  line number to get Returns: string from the history, or NULL if line was out of bounds. Definition at line 63 of file readline.cpp. References history, and numlines. Referenced by readline().

char* readline (  char *    s, int    n )

A simple version of the GNU readline function. Only the most basic editing functions are implemented. Parameters: s  pointer to string to read into n  maximum length (including \0) Returns: pointer to string Bug: there's still a bug when pressing cursor up or down while the history buffer is empty (try it right after the program is started - it will copy garbage to the current line) Definition at line 85 of file readline.cpp. References addline(), getline(), and numlines.

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Variable Documentation

char* history[HISTORY_SIZE] [static]

Definition at line 31 of file readline.cpp. Referenced by addline(), and getline().

int numlines = 0 [static]

Definition at line 32 of file readline.cpp. Referenced by addline(), getline(), and readline().

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