diff options
Diffstat (limited to 'src/cmd.java')
| -rw-r--r-- | src/cmd.java | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/src/cmd.java b/src/cmd.java deleted file mode 100644 index d49c589..0000000 --- a/src/cmd.java +++ /dev/null @@ -1,151 +0,0 @@ -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 |
