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-rw-r--r--MANIFEST.MF1
-rwxr-xr-xbuild/jed3
-rwxr-xr-xjed3
-rw-r--r--jed.java215
-rw-r--r--makefile10
-rw-r--r--src/MANIFEST.MF1
-rw-r--r--src/cmd.java151
-rw-r--r--src/filebuffer.java76
-rw-r--r--src/jed.java29
9 files changed, 265 insertions, 224 deletions
diff --git a/MANIFEST.MF b/MANIFEST.MF
deleted file mode 100644
index 43cb809..0000000
--- a/MANIFEST.MF
+++ /dev/null
@@ -1 +0,0 @@
-Main-Class: jed
diff --git a/build/jed b/build/jed
new file mode 100755
index 0000000..3ac0634
--- /dev/null
+++ b/build/jed
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+java -jar ./jed.jar $@
diff --git a/jed b/jed
deleted file mode 100755
index 8fb1d51..0000000
--- a/jed
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/sh
-
-java -jar jed.jar $@
diff --git a/jed.java b/jed.java
deleted file mode 100644
index 8f6d249..0000000
--- a/jed.java
+++ /dev/null
@@ -1,215 +0,0 @@
-import java.util.Scanner;
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.util.ArrayList;
-import java.io.FileWriter;
-import java.io.PrintWriter;
-import java.io.IOException;
-
-class jed {
-
- private static ArrayList<String> file = new ArrayList<String>(); // Arraylist that stores every line of a file in strings
- private static Scanner kbIn = new Scanner(System.in);
- private static int currentLine = 0;
- private static boolean hasName = true;
-
- public static void main(String args[]) {
- String fileName = null;
- try { // checks if the user provided a file name
- fileName = args[0];
- readFile(args[0]);
- } catch (IndexOutOfBoundsException e) {
- hasName = false;
- }
-
- while (true) {
- String line = kbIn.nextLine();
- int err = parser(line, fileName);
- if (err == 1)
- break;
- }
- kbIn.close();
- }
-
- /* parser: the command parser for jed, takes user input and interprets the command */
- private static int parser(String cmd, String fileName) {
- int err = 0;
- if (cmd.equals("w")) // w writes the file
- err = writeFile(fileName);
- else if (cmd.equals("q")) // q quits
- return 1;
- else if (cmd.equals("a")) // a appends
- append();
- else if (cmd.equals("p")) // p prints lines
- printFile(false);
- else if (cmd.equals("n")) //n prints lines with numbers
- printFile(true);
- else if (isNum(cmd)) { // some positive integer to change lines
- currentLine = Integer.parseInt(cmd) - 1;
- System.out.printf("%d %s\n", currentLine + 1, file.get(currentLine));
- } else if (cmd.equals("c")) // c change current line
- changeLine();
- else if (cmd.equals("d")) // d delete current line
- deleteLine();
- else if (cmd.substring(0,2).equals("w ")) { // w FILENAME writes a file with user inputed name
- String s[] = new String[2];
- s = cmd.split(" ");
- hasName = true;
- err = writeFile(s[1]);
- } else if (cmd.substring(0,1).equals("g")) { // g/expression/ finds user input
- find(cmd.substring(2, cmd.length() - 1));
- } else if (cmd.substring(0,2).equals("%s")) { // %s/expression/newExpression/ replaces an expression with new user input through the whole file
- String temp[] = new String[3];
- temp = cmd.split("/");
- replace(0, file.size(), temp[1], temp[2]);
- } else if (cmd.substring(0,1).equals("<")) { // <integer, integer>command works with d and s/ex/nex/
- String temp[] = new String[2];
- temp = cmd.split(">");
- range(temp[0], temp[1]);
- } else if (cmd.substring(0,1).equals("s")) { // s/expression/newExpression/ replaces an expression with new user input in the current line
- String temp[] = new String[3];
- temp = cmd.split("/");
- replace(currentLine, currentLine + 1, temp[1], temp[2]);
- } else if (cmd.substring(0,1).equals("o")) { // o fileName opens a file
- readFile(cmd.substring(2,cmd.length()));
- } else // unknown command
- System.out.println("?");
- if (err == 1) // error in writing the file
- System.out.println("Error writing the file");
- return 0;
- }
-
- /* range: gets the inputed range and runs the command with the range */
- private static void range(String range, String cmd) {
- String num[] = new String[2];
- num = range.replace("<", "").split(",");
- String temp[] = new String[3];
- temp = cmd.split("/");
- int start = Integer.parseInt(num[0]) - 1, stop = Integer.parseInt(num[1]);
- if (start <= 0 || start-1 >file.size() || stop <= 0 || stop-1 > file.size() || stop <= start)
- System.out.println("?");
- if (temp[0].equals("s"))
- replace(start, stop, temp[1], temp[2]);
- else if (temp[0].equals("d"))
- deleteLine(start, stop);
- }
-
- /* deleteLine: deletes line in the range of start to stop */
- private static void deleteLine(int start, int stop) {
- for (int i = start; i < stop; i++) {
- file.remove(start);
- }
- }
-
- /* replace: replaces an expression with new user input */
- private static void replace(int start, int stop, String ex, String newEx) {
- for (int i = start; i < stop; i++) {
- String line = file.get(i);
- file.add(i, line.replace(ex, newEx));
- file.remove(i + 1);
- }
- }
-
- /* find: finds user input in the file and prints it with line numbers */
- private static void find(String expression) {
- for (int i = 0; i < file.size(); i++) {
- String line = file.get(i);
- for (int j = 0, k = expression.length(); k < line.length(); j++, k++) {
- if (line.substring(j, k).equals(expression)) {
- System.out.printf("%d %s\n", i + 1, line);
- break;
- }
- }
- }
- }
-
- /* changeLine: changes the current line */
- private static void changeLine() {
- file.remove(currentLine);
- String input;
- int line = currentLine;
- while (!(input = kbIn.nextLine()).equals("."))
- file.add(line++, input);
- }
-
- /* deleteLine: deletes the current line */
- private static void deleteLine() {
- file.remove(currentLine);
- }
-
- /* isNum: checks if a string is a number, only to be used for changing lines */
- private static boolean isNum(String s) {
- try {
- Integer.parseInt(s);
- } catch (NumberFormatException e) {
- return false;
- } catch (NullPointerException e) {
- return false;
- }
- return true;
- }
-
- /* append: appends user input to the end of a file */
- private static void append() {
- String input;
- while (!(input = kbIn.nextLine()).equals("."))
- file.add(input);
- }
-
- /* printFile: prints strings from file arraylist, if num is true it includes line numbers */
- private static void printFile(boolean num) {
- for (int i = 0; i < file.size(); i++) {
- if (num)
- System.out.printf("%d %s\n", i+1, file.get(i));
- else
- System.out.println(file.get(i));
- }
- }
-
- /* createFile: creates a file, only to be called by writeFile */
- private static int createFile(String fileName) {
- try {
- File f = new File(fileName);
- if (f.createNewFile())
- return 1;
- return 0;
- } catch (IOException e) {
- return -1;
- }
- }
-
- /* writeFile: reads strings from file arraylist and prints them into a file */
- private static int writeFile(String fileName) {
- if (!hasName) {
- System.out.println("?");
- return 1;
- }
- int err = createFile(fileName);
- if (err == -1)
- return 1;
- try {
- FileWriter fw = new FileWriter(fileName);
- PrintWriter pw = new PrintWriter(fw);
- for (int i = 0; i < file.size(); i++)
- pw.println(file.get(i));
- pw.close();
- } catch (IOException e) {
- return 1;
- }
- return 0;
- }
-
- /* readFile: opens a file and stores each line in a string arraylist called file */
- private static int readFile(String fileName) {
- try {
- File fileObj = new File(fileName);
- Scanner fileReader = new Scanner(fileObj);
- while(fileReader.hasNextLine())
- file.add(fileReader.nextLine());
- fileReader.close();
- } catch (FileNotFoundException e) {
- createFile(fileName);
- }
- return 0;
- }
-}
diff --git a/makefile b/makefile
index afdc0d3..b2e4ba4 100644
--- a/makefile
+++ b/makefile
@@ -1,7 +1,7 @@
-all: jed.java
- javac jed.java
- jar cvmf MANIFEST.MF jed.jar jed.class
+all:
+ javac -d . src/jed.java src/cmd.java src/filebuffer.java
+ jar cvmf src/MANIFEST.MF build/jed.jar jed/jed.class jed/cmd.class jed/filebuffer.class
run: all
- ./jed
+ . build/jed
clean:
- rm jed.jar jed.class
+ rm -r build/jed.jar jed
diff --git a/src/MANIFEST.MF b/src/MANIFEST.MF
new file mode 100644
index 0000000..9efb8fb
--- /dev/null
+++ b/src/MANIFEST.MF
@@ -0,0 +1 @@
+Main-Class: jed/jed
diff --git a/src/cmd.java b/src/cmd.java
new file mode 100644
index 0000000..d49c589
--- /dev/null
+++ b/src/cmd.java
@@ -0,0 +1,151 @@
+package jed;
+
+public class cmd {
+
+ private static int currentLine = 0;
+
+ /* parser: the command parser for jed, takes user input and interprets the command */
+ public static int parser(String cmd) {
+ int err = 0;
+ if (isNum(cmd)) {
+ currentLine = Integer.parseInt(cmd) - 1;
+ System.out.printf("%d %s\n", currentLine + 1, jed.file.buffer.get(currentLine));
+ } else {
+ char c = cmd.charAt(0);
+ switch (c) {
+ case 'w':
+ if (cmd.length() > 1) {
+ String s[] = new String[2];
+ s = cmd.split(" ");
+ jed.file.hasName = true;
+ jed.file.fileName = s[1];
+ }
+ err = jed.file.writeFile();
+ break;
+ case 'q': // q quits
+ return 1;
+ case 'a': // a appends
+ append();
+ break;
+ case 'p': // p prints lines
+ jed.file.printFile(false);
+ break;
+ case 'n': //n prints lines with numbers
+ jed.file.printFile(true);
+ break;
+ case 'c': // c change current line
+ changeLine();
+ break;
+ case 'd':
+ deleteLine(); // d delete current line
+ break;
+ case 'g': // g/expression/ finds user input
+ find(cmd.substring(2, cmd.length() - 1));
+ break;
+ case '%': // %s/expression/newExpression/ replaces an expression with new user input through the whole file
+ String s[] = new String[3];
+ s = cmd.split("/");
+ replace(0, jed.file.buffer.size(), s[1], s[2]);
+ break;
+ case '<': // <integer, integer>command works with d and s/ex/nex/
+ String t[] = new String[2];
+ t = cmd.split(">");
+ range(t[0], t[1]);
+ break;
+ case 's': // s/expression/newExpression/ replaces an expression with new user input in the current line
+ String m[] = new String[3];
+ m = cmd.split("/");
+ replace(currentLine, currentLine + 1, m[1], m[2]);
+ break;
+ case 'o': // o fileName opens a file
+ jed.file.fileName = cmd.substring(2,cmd.length());
+ jed.file.hasName = true;
+ jed.file.readFile();
+ break;
+ default:
+ System.out.println("?");
+ break;
+ }
+ }
+ if (err == 1) // error in writing the file
+ System.out.println("Error writing the file");
+ return 0;
+ }
+
+ /* range: gets the inputed range and runs the command with the range */
+ private static void range(String range, String cmd) {
+ String num[] = new String[2];
+ num = range.replace("<", "").split(",");
+ String temp[] = new String[3];
+ temp = cmd.split("/");
+ int start = Integer.parseInt(num[0]) - 1, stop = Integer.parseInt(num[1]);
+ if (start <= 0 || start-1 >jed.file.buffer.size() || stop <= 0 || stop-1 > jed.file.buffer.size() || stop <= start)
+ System.out.println("?");
+ if (temp[0].equals("s"))
+ replace(start, stop, temp[1], temp[2]);
+ else if (temp[0].equals("d"))
+ deleteLine(start, stop);
+ }
+
+ /* deleteLine: deletes line in the range of start to stop */
+ private static void deleteLine(int start, int stop) {
+ for (int i = start; i < stop; i++) {
+ jed.file.buffer.remove(start);
+ }
+ }
+
+ /* replace: replaces an expression with new user input */
+ private static void replace(int start, int stop, String ex, String newEx) {
+ for (int i = start; i < stop; i++) {
+ String line = jed.file.buffer.get(i);
+ jed.file.buffer.add(i, line.replace(ex, newEx));
+ jed.file.buffer.remove(i + 1);
+ }
+ }
+
+ /* find: finds user input in the file and prints it with line numbers */
+ private static void find(String expression) {
+ for (int i = 0; i < jed.file.buffer.size(); i++) {
+ String line = jed.file.buffer.get(i);
+ for (int j = 0, k = expression.length(); k < line.length(); j++, k++) {
+ if (line.substring(j, k).equals(expression)) {
+ System.out.printf("%d %s\n", i + 1, line);
+ break;
+ }
+ }
+ }
+ }
+
+ /* changeLine: changes the current line */
+ private static void changeLine() {
+ jed.file.buffer.remove(currentLine);
+ String input;
+ int line = currentLine;
+ while (!(input = jed.kbIn.nextLine()).equals("."))
+ jed.file.buffer.add(line++, input);
+ }
+
+ /* deleteLine: deletes the current line */
+ private static void deleteLine() {
+ jed.file.buffer.remove(currentLine);
+ }
+
+ /* isNum: checks if a string is a number, only to be used for changing lines */
+ private static boolean isNum(String s) {
+ try {
+ Integer.parseInt(s);
+ } catch (NumberFormatException e) {
+ return false;
+ } catch (NullPointerException e) {
+ return false;
+ }
+ return true;
+ }
+
+ /* append: appends user input to the end of a file */
+ private static void append() {
+ String input;
+ while (!(input = jed.kbIn.nextLine()).equals("."))
+ jed.file.buffer.add(input);
+ }
+} \ No newline at end of file
diff --git a/src/filebuffer.java b/src/filebuffer.java
new file mode 100644
index 0000000..1ed0406
--- /dev/null
+++ b/src/filebuffer.java
@@ -0,0 +1,76 @@
+package jed;
+
+import java.io.*;
+import java.util.ArrayList;
+import java.util.Scanner;
+
+public class filebuffer {
+
+ public ArrayList<String> buffer;
+ public String fileName;
+ public boolean hasName;
+
+ public filebuffer(String fn, boolean hn) {
+ buffer = new ArrayList<String>(); // Arraylist that stores every line of a file in strings
+ hasName = hn;
+ if (hasName)
+ fileName = fn;
+ }
+
+ /* printFile: prints strings from file arraylist, if num is true it includes line numbers */
+ public void printFile(boolean num) {
+ for (int i = 0; i < buffer.size(); i++) {
+ if (num)
+ System.out.printf("%d %s\n", i+1, buffer.get(i));
+ else
+ System.out.println(buffer.get(i));
+ }
+ }
+
+ /* createFile: creates a file, only to be called by writeFile */
+ private int createFile() {
+ try {
+ File f = new File(fileName);
+ if (f.createNewFile())
+ return 1;
+ return 0;
+ } catch (IOException e) {
+ return -1;
+ }
+ }
+
+ /* writeFile: reads strings from file arraylist and prints them into a file */
+ public int writeFile() {
+ if (!hasName) {
+ System.out.println("?");
+ return 1;
+ }
+ int err = createFile();
+ if (err == -1)
+ return 1;
+ try {
+ FileWriter fw = new FileWriter(fileName);
+ PrintWriter pw = new PrintWriter(fw);
+ for (int i = 0; i < buffer.size(); i++)
+ pw.println(buffer.get(i));
+ pw.close();
+ } catch (IOException e) {
+ return 1;
+ }
+ return 0;
+ }
+
+ /* readFile: opens a file and stores each line in a string arraylist called file */
+ public int readFile() {
+ try {
+ File fileObj = new File(fileName);
+ Scanner fileReader = new Scanner(fileObj);
+ while(fileReader.hasNextLine())
+ buffer.add(fileReader.nextLine());
+ fileReader.close();
+ } catch (FileNotFoundException e) {
+ createFile();
+ }
+ return 0;
+ }
+} \ No newline at end of file
diff --git a/src/jed.java b/src/jed.java
new file mode 100644
index 0000000..7c14070
--- /dev/null
+++ b/src/jed.java
@@ -0,0 +1,29 @@
+package jed;
+
+import java.util.Scanner;
+
+public class jed {
+
+ public static Scanner kbIn = new Scanner(System.in);
+ public static filebuffer file;
+
+ public static void main(String args[]) {
+ String fileName = null;
+ boolean hasName = true;
+ try { // checks if the user provided a file name
+ fileName = args[0];
+ } catch (IndexOutOfBoundsException e) {
+ hasName = false;
+ }
+
+ file = new filebuffer(fileName, hasName);
+
+ while (true) {
+ String line = kbIn.nextLine();
+ int err = cmd.parser(line);
+ if (err == 1)
+ break;
+ }
+ kbIn.close();
+ }
+} \ No newline at end of file
generated by cgit v1.2.3 (git 2.46.0) at 2026-05-15 10:30:20 +0000