Add all missing sourcesmain

2 files changed, 318 insertions, 0 deletions

diff --git a/LibTerm/Term.swift b/LibTerm/Term.swift
new file mode 100644
index 0000000..9ca17dc
--- /dev/null
+++ b/LibTerm/Term.swift
@@ -0,0 +1,280 @@
+//
+//  Term.swift
+//  CmdLine
+//
+//  Created by Jacky Jack on 25/02/2023.
+//
+
+import Foundation
+import Darwin
+
+class Term {
+    let esc = "\u{001B}"
+    
+    var ifd:Int32
+    var ofd:Int32
+    var orig_i:termios
+    var orig_o:termios
+    var raw_i:termios
+    var raw_o:termios
+    
+    init() {
+        
+        
+        
+        self.ifd = Darwin.STDIN_FILENO
+        self.ofd = Darwin.STDOUT_FILENO
+        
+        self.orig_i = termios()
+        self.orig_o = termios()
+        self.raw_i = termios()
+        self.raw_o = termios()
+        
+        //let p_i<> = UnsafeMutablePointer(self.orig_i)
+        if (-1 == tcgetattr(self.ifd, UnsafeMutablePointer(&self.orig_i))) {
+            print("tcgetattr error")
+            return
+        }
+        self.raw_i = self.orig_i
+        
+        if ( -1 == tcgetattr(self.ofd, UnsafeMutablePointer(&self.orig_o))) {
+            print("tcgetattr error")
+            return
+        }
+        self.raw_o = self.orig_o
+        
+        if (isatty(STDIN_FILENO) == 0) {
+            print("isatty failed")
+            return
+        }
+        
+    }
+    
+    func setSpeed(speed: speed_t) {
+        var ret:Int32=0
+        let raw_out = UnsafeMutablePointer(&self.raw_o)
+        ret = cfsetospeed(raw_out, speed)
+        tcsetattr(self.ofd, TCSANOW, raw_out)
+        
+        let raw_in = UnsafeMutablePointer(&self.raw_o)
+        ret = cfsetispeed(raw_in, speed)
+        tcsetattr(self.ifd, TCSANOW, raw_in)
+    }
+    
+    func getMaxCol() -> Int {
+        let orig_c = getC()
+        //go to right marging and get position
+        if (write(ofd, "\u{001B}[999C", 6) != 6) {
+            return -1
+        }
+        //get the position
+        let cur_c = getC()
+        if (cur_c == -1) {
+            return -1
+        }
+        
+        //restore previouse position
+        let restore_position = "\u{001B}[\(cur_c-orig_c)D"
+        write(ofd, restore_position, restore_position.count)
+        
+        return cur_c
+    }
+    
+    func getMaxRow() -> Int {
+        let orig_r = getR()
+        //go to right marging and get position
+        if (write(ofd, "\u{001B}[999B", 6) != 6) {
+            return -1
+        }
+        //get the position
+        let cur_r = getR()
+        if (cur_r == -1) {
+            return -1
+        }
+        
+        //restore previouse position
+        let restore_position = "\u{001B}[\(cur_r-orig_r)A"
+        write(ofd, restore_position, restore_position.count)
+        
+        return cur_r
+    }
+    
+    func getR() -> Int {
+        var buf = [UInt8](repeating: 0, count: 32)
+        
+        if (write(ofd, "\u{001B}[6n", 4) != 4) {
+            print("Cant push escape codes for column")
+        }
+        var i=0;
+        while (i<buf.capacity-1) {
+            if (read(ifd, &buf[i], 1) == -1) {
+                break
+            }
+            //if eq R
+            if (buf[i] == 0x52) {
+                break
+            }
+            i+=1
+        }
+        //maybe not most optimal way
+        while (buf.count-1 > i) {
+            buf.removeLast()
+        }
+        if (buf[0] != 0x1b) && (buf[1] != 0x5b) {
+            return -1
+        }
+        
+        var bufs:String = ""
+        for i in 0..<buf.count {
+            bufs += String(Character(UnicodeScalar(buf[i])))
+        }
+        let sindex = bufs.index(bufs.startIndex, offsetBy: 2)
+        let split = bufs.suffix(from:sindex).components(separatedBy: ";")
+        let s1 = split[0] // row
+        let s2 = split[1] //column
+        
+        return Int(s1)!
+    }
+    
+    func getC() -> Int {
+        var buf = [UInt8](repeating: 0, count: 32)
+        if (write(ofd, "\u{001B}[6n", 4) != 4) {
+            //print("Cant push escape codes for column")
+        }
+        var i=0;
+        while (i<buf.capacity-1) {
+            if (read(ifd, &buf[i], 1) == -1) {
+                break
+            }
+            //if eq R
+            if (buf[i] == 0x52) {
+                break
+            }
+            i+=1
+        }
+        //maybe not most optimal way
+        var j=0
+        while (buf.count > i) {
+            buf.removeLast()
+            j+=1
+        }
+        if (buf[0] != 0x1b) && (buf[1] != 0x5b) {
+            return -1
+        }
+        
+        var bufs:String = ""
+        for i in 0..<buf.count {
+            bufs += String(Character(UnicodeScalar(buf[i])))
+        }
+        let sindex = bufs.index(bufs.startIndex, offsetBy: 2)
+        let split = bufs.suffix(from:sindex).components(separatedBy: ";")
+        let s1 = split[0] // row
+        let s2 = split[1] //column
+        
+        return Int(s2)!
+    }
+    
+    func setC(_ pos_c: Int) {
+        let cur_r = getR()
+        let escape_string = "\u{001B}[\(cur_r);\(pos_c)H"
+        write(ofd, escape_string, escape_string.count)
+    }
+    
+    func setR(_ pos_r: Int) {
+        let cur_c = getC()
+        let escape_string = "\u{001B}[\(pos_r);\(cur_c)H"
+        write(ofd, escape_string, escape_string.count)
+    }
+    
+    func setCR(_ pos_c:Int, _ pos_r: Int) {
+        let escape_string = "\u{001B}[\(pos_c);\(pos_r)H"
+        write(ofd, escape_string, escape_string.count)
+    }
+    
+    func clearScreen() {
+        //let escape = String(Unicode.Scalar(0x1b)!)
+        let s = "\u{001B}[H\u{001B}[2J"
+        //print(s.count)
+        let ret = write(self.ofd, s, 7);
+        //let ret = write(self.ofd, String("\u{001b}[2J"),4);
+        //print("\(esc)[2J".utf8)
+    }
+    
+    func setRawMode() {
+        if ( tcgetattr(self.ifd, UnsafeMutablePointer(&self.orig_i)) == -1) {
+            print("Cannot get terminal attribures")
+            return
+        }
+        
+        raw_i = orig_i
+        var c_iflag:Int32 = Int32(raw_i.c_iflag)
+        c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON)
+        raw_i.c_iflag = UInt(c_iflag)
+        
+        var c_oflag:Int32 = Int32(raw_i.c_oflag)
+        c_oflag &= ~(OPOST)
+        raw_i.c_oflag = UInt(c_oflag)
+        
+        var c_cflag:Int32 = Int32(raw_i.c_cflag)
+        c_cflag |= (CS8)
+        raw_i.c_cflag = UInt(c_cflag)
+        
+        var c_lflag:Int32 = Int32(raw_i.c_lflag)
+        c_lflag &= ~(ECHO | ICANON | IEXTEN | ISIG)
+        raw_i.c_lflag = UInt(c_lflag)
+        //https://stackoverflow.com/questions/31465943/using-termios-in-swift
+        //raw_i.c_cc[VTIME] = 1
+        //raw_i.c_cc[VMIN] = 0;
+        /*withUnsafeMutablePointer(to: &raw_i.c_cc) { (tuplePtr) -> Void in
+            tuplePtr.withMemoryRebound(to: cc_t.self, capacity: MemoryLayout.size(ofValue: raw_i.c_cc)) {
+                $0[Int(VMIN)] = 1
+                //$0[Int(VTIME)] = 0
+            }
+        }*/
+        //print("\(raw_i)")
+        //print("VMIN=\(VMIN)")
+        raw_i.c_cc.16 = 1
+        //print("VTIME=\(VTIME)")
+        raw_i.c_cc.17 = 0
+        let p:UnsafePointer<termios> = UnsafePointer(&self.raw_i)
+        if (tcsetattr(self.ifd, TCSAFLUSH, UnsafePointer(p)) == -1) {
+            print("Cannot set new terminal input attribures")
+        }
+    }
+    
+    func setConfigMode(c_iflag:Int32, c_oflag:Int32, c_cflag:Int32, c_lflag:Int32, vmin: UInt8, vtime: UInt8) {
+        if ( tcgetattr(self.ifd, UnsafeMutablePointer(&self.orig_i)) == -1) {
+            print("Cannot get terminal attribures")
+            return
+        }
+        
+        raw_i.c_iflag = UInt(c_iflag)
+        raw_i.c_oflag = UInt(c_oflag)
+        raw_i.c_cflag = UInt(c_cflag)
+        raw_i.c_lflag = UInt(c_lflag)
+        raw_i.c_cc.16 = vmin
+        raw_i.c_cc.17 = vtime
+        let p:UnsafePointer<termios> = UnsafePointer(&self.raw_i)
+        if (tcsetattr(self.ifd, TCSAFLUSH, UnsafePointer(p)) == -1) {
+            print("Cannot set new terminal input attribures")
+        }
+    }
+    
+    func modeRows() {
+        
+    }
+    
+    func modeColumns() {
+        
+    }
+    
+    func setOrigMode() {
+        if (tcsetattr(self.ifd, TCSAFLUSH, UnsafePointer(&self.orig_i)) == -1) {
+            print("Cannot set new terminal input attribures")
+        }
+    }
+    
+    func print(_ s: String) {
+        write(self.ofd, s, s.count)
+    }
+}
diff --git a/LibTerm/TermIO.swift b/LibTerm/TermIO.swift
new file mode 100644
index 0000000..cbfb7a5
--- /dev/null
+++ b/LibTerm/TermIO.swift
@@ -0,0 +1,38 @@
+//
+//  TermIO.swift
+//  CmdLine
+//
+//  Created by Jacky Jack on 07/06/2023.
+//
+
+import Foundation
+
+class TermIO {
+    var term:Term
+    
+    init(term: Term) {
+        self.term = term
+    }
+    
+    func print(s: String) {
+        
+    }
+    
+    func getC() -> UInt8 {
+        var c:UInt8 = 0x0
+        let fret = read(self.term.ifd, UnsafeMutableRawPointer(&c), 1);
+        if (fret == 1) {
+            return c;
+        }
+        return 0
+    }
+    
+    func putC(_ c: UInt8) {
+        var buf = c
+        write(self.term.ofd, UnsafeRawPointer(&buf), 1)
+    }
+    
+    func readline(_ flag: Int) -> String {
+        return "<Empty>"
+    }
+}