more functions and documentation

ansi_escape.py

@@ -1,40 +1,311 @@
-def bell():
+"""
-    print("\u0007")
+Name: ansi_escape
+By: Filip Nilsen
+Website: filip-nilsen.com
+Sources:
+https://en.wikipedia.org/wiki/ANSI_escape_code
+https://terminalguide.namepad.de/seq/
+https://man7.org/linux/man-pages/man4/console_codes.4.html
+"""
 
-def cursor_position(**coordinates):
+def set_title(title, *args):
+    """
+    Set title of the terminal emulator:
+    \u001b]{n};{t}\u001b\\
+    Where {t} is the title of the window and/or icon
+    Values of {n}
+    |0|Makes {t} title of window and minimized desktop icon
+    |1|Makes {t} title of just the minimized desktop icon
+    |2|Makes {t} title of just the terminal emulator window
+    """
+    if len(args) == 0:
+        return "\u001b]0;" + title + "\u001b\\"
+    elif args[0] == "window":
+        return "\u001b]2;" + title + "\u001b\\"
+    elif args[0] == "icon":
+        return "\u001b]1;" + title + "\u001b\\"
+    else:
+        return "\u001b]" + str(args[0]) + ";" + title + "\u001b\\"
+
+def bell_frequency(Hz):
+    return "\u001b[10;" + str(Hz) + "]"
+bell_freq = bell_frequency
+bell_f = bell_frequency
+bell_hz = bell_frequency
+
+def bell_duration(ms):
+    return "\u001b[11;" + str(ms) + "]"
+
+def blink_interval(ms):
+    return "\u001b[16;" + str(ms) + "]"
+
+def erase_character(*amount):
+    """
+    Deletes from left to right -->
+    Does not change cursor position.
+    """
+    try:
+        return "\u001b[" + str(amount[0]) + "X"
+    except:
+        return "\u001bX"
+
+
+def delete_character(*amount):
+    """
+    Deletes from left to right -->
+    Characters to the left ar shifted to the right by {amout}.
+    Does not change cursor position.
+    """
+    try:
+        return "\u001b[" + str(amount[0]) + "P"
+    except:
+        return "\u001bP"
+
+def line(a, *amount):
     return_string = "\u001b["
     try:
-        return_string += coordinates["row"]
+        return_string += str(amount[0])
+    except:
+        pass
+    if a == "insert":
+        return return_string + "L"
+    elif a == "delete":
+        return return_string + "M"
+
+def set_leds(led):
+    a = {
+        "reset": "0",
+        "clear": "0",
+        "none": "0",
+        "scroll lock": "1",
+        "num lock": "2",
+        "caps lock": "3"
+    }
+    try:
+        return "\u001b[" + a[led] + "q"
+    except:
+        return "\u001b" + str(led) + "q"
+
+def set(attr):
+    a = {
+        "bold": "1",
+        "faint": "2",
+        "italic": "3",
+        "underline": "4",
+        "blink": "5",
+        "overline": "53",
+        "inverse": "7",
+        "invisible": "8",
+        "strike": "9"
+    }
+    try:
+        return "\u001b[" + a[attr] + "m"
+    except:
+        return "\u001b[" + str(attr) + "m"
+
+def unset(attr):
+    a = {
+        "all": "0",
+        "bold": "22",
+        "faint": "22",
+        "italic": "23",
+        "underline": "24",
+        "blink": "25",
+        "overline": "55",
+        "inverse": "27",
+        "invisible": "28",
+        "strike": "29",
+        "fg": "39",
+        "bg": "49"
+    }
+    try:
+        return "\u001b[" + a[attr] + "m"
+    except:
+        return "\u001b[" + str(attr) + "m"
+
+
+def set_top_and_bottom_margins(**args):
+    return_string = "\u001b["
+    try:
+        return_string += args["top"]
     except:
         pass
     return_string += ";"
-
     try:
-        return_string += coordinates["column"]
+        return_string += args["bottom"]
     except:
         pass
+    return_string += "r"
+    return return_string
+
+decstbm = set_top_and_bottom_margins
+set_scrolling_region = set_top_and_bottom_margins
+
+
+def select_cursor_style(a, b):
+    return_string = "\u001b["
+    if a == "blinking":
+        if b == "block":
+            return_string += "1"
+        elif b == "underline":
+            return_string += "3"
+        elif b == "bar":
+            return_string += "5"
+    elif a == "steady":
+        if b == "block":
+            return_string += "2"
+        elif b == "underline":
+            return_string += "4"
+        elif b == "bar":
+            return_string += "6"
+    return_string += " q"
+    return return_string
+
+decscusr = select_cursor_style
+
+def scroll(direction, *lines):
+    """
+    \u001b[{n}{d}
+    Scrolls the display up or down by {n} lines. {n} defaults to 1.
+    {d} is the direction to scroll in.
+    Values for {d}:
+    |S|up
+    |T|down
+    """
+    return_string = "\u001b["
+    try:
+        return_string += str(lines[0])
+    except:
+        pass
+    if direction == "up":
+        return_string += "S"
+    elif direction == "down":
+        return_string += "T"
+    return return_string
+
+def cursor_horisontal_absolute(*column):
+    """
+    \u001b[{n}G
+    Wil move the cursor to column {n}.
+    {n} defaults to 1
+    """
+    return_string = "\u001b["
+    try:
+        return_string += str(column[0]) #optional; therefore it is in a try:
+    except:
+        pass #defaults to 1
+    return_string += "G"
+    return return_string
+
+cha = cursor_horisontal_absolute
+
+def cursor_line(direction, *lines):
+    """
+    \u001b[{n}E
+    Will move the cursor {n} lines down and put the cursor at the beginning of that line.
+    If {n} is not supplied it defaults to 1.
+
+    \u001b[{n}F
+    The same as above, just that the cursor wil go up.
+    """
+
+    return_string = "\u001b[" #csi
+
+    try:
+        return_string += str(lines[0]) #try to add the optinal lines variable to the control sequence
+    except:
+        pass #lines are optional the standard defaults to 1
+
+    a = {
+        "next": "E", #indicates wanting to scroll down
+        "down": "E",
+        "previous": "F", #scroll up
+        "up": "F"
+    }
+
+    try:
+        return_string += a[direction] #replace human readable name with variable in a{}
+    except:
+        return_string += str(direction) #makes it possible to pass E or F directly to the function
+
+    return return_string
+
+def cursor_position(**coordinates):
+    """
+    \u001b[{r};{c}H
+    Will move the cursor to row {r} and column {c}.
+    If {c} and/or {r} is not provided they will default to 1.
+    \u001b;H
+    Will therefore move the cursor to 1,1.
+    """
+
+    return_string = "\u001b["
+    
+    try:
+        return_string += str(coordinates["row"])
+    except:
+        pass
+
+    return_string += ";"
+
+    try:
+        return_string += str(coordinates["column"])
+    except:
+        pass
+
     return_string += "H"
     return return_string
 
-set_cursor = cursor_position
+#set_cursor = cursor_position
 cup = cursor_position
 
 def move_cursor(direction, *cells):
-    return_string = "\u001b["
+    """
+    \u001b[{c}{d}
+    Moves the cursor {c} cells in direction {d}.
+    {d} can be A, B, C, or D which means up, down, forward/right, and backward/left respectivley.
+    {c} can be omitted and defaults to 1.
+    Examples:
+    \u001b[3A #moves the cursor 3 cells up
+    \u001b[B #moves the cursor 1 cell down
+    """
+
+    return_string = "\u001b[" #csi
+
     try:
-        return_string += cells[0]
+        return_string += str(cells[0]) #cells is optional therefore it is in a try statement
     except:
-        pass
+        pass #if no argument is supplied it defaults to 1
-    a = {
+
+    a = { #human redable names for directions to move the cursor
         "up": "A",
+
         "down": "B",
+
         "forward": "C",
-        "backward": "D"
+        "right": "C",
+
+        "backward": "D",
+        "left": "D"
     }
-    return_string += a[direction]
+
+    try:
+        return_string += a[direction] #allows human redable names to be used
+    except:
+        return_string += direction #allows the function to take A-D as parameters directly
+
     return return_string
 
 def erase_in_display(direction):
+    """
+    \u001b[{d}J
+    Erases cells on the display from the cursor to direction {d}.
+    {d} can be:
+    |0|Erases from the cursor to the end of the display.
+    |1|Erases from the cursor to the top of the display.
+    |2|Does both.
+    |3|On some terminals this will do both and erase the history. Since it is not supported in all terminals I do not recomend using this.
+    """
     return_string = "\u001b["
     a = {
         "forward": "0",
@@ -53,92 +324,136 @@ erase_in_display_from_cursor = erase_in_display
 ed = erase_in_display
 
 def erase_in_line(direction):
+    """
+    \u001b[{n}K
+    Deletes characters on the same line as the cursor in direction {n} from the cursor.
+    {n} can be:
+    |0|Deletes from the cursor to the end of the line.
+    |1|Deletes from the cursor to the beginning of the line.
+    |2|Deletes in both directions. (Clears the line)
+    """
     return_string = "\u001b["
-    a = {
+    a = { #human readable names
         "forward": "0",
+        "right": "0",
         "backward": "1",
+        "left": "1",
         "both": "2"
     }
     try:
-        return_string += a[direction]
+        return_string += a[direction] #replaces the human readable name with mthe machine readable number
     except:
-        return_string += direction
+        return_string += str(direction) #makes it posible to use numbers 0-2 instead
     return_string += "K"
     return return_string
 
 erase_in_line_from_cursor = erase_in_line
 el = erase_in_line
 
-def color(mode, ground, *args):
+def color(ground, *args):
-    return_string = "\u001b["
+    """
-    if mode == "bright":
+    Color is complicated:
-        return_string += "1;"
+    See: https://en.wikipedia.org/wiki/ANSI_escape_code#Colors
-        mode = "normal"
+
+    3-bit 8 colors support:
+    \u001b[{g}{c}m
+    Where {g} can be 3 or 4 and represents if the foreground color (aka text color) or background color should be changed.
+    |3|Change foreground color (aka text color)
+    |4|Change background color
+    {c} is a number between 0-7 that represents the color itself
+    Example:
+    \u001b[46m #makes the text background color cyan
+
+    Brighter/lighter/"more intense" variants of the 3-bit colors (4-bit color):
+    \u001b[{g}{c}m
+    Here the values of {g} are different:
+    |9 |Foreground color
+    |10|Background color
+    {c} is the same as 3-bit
+    Example:
+    \u001b[100m #sets background color to bright black (esentially grey)
+
+    8-bit 256 color support:
+    See: https://en.wikipedia.org/wiki/ANSI_escape_code#8-bit for list of colors
+    \u001b[{g}8;5;{c}m
+    {g} uses the same values as 3-bit color.
+    {c} is a number between 0-255 that represent the color.
+    Values for {c}:
+    |0-7    |Same numbers as those used for 3-bit colors
+    |8-15   |Brighter 3-bit colors
+    |16-231 |Colors
+    |232-255|Grayscale
+    Example:
+    \001b[48;5;34m #sets a light green background color
+
+    24-bit True color:
+    \u001b[8;2;{r};{g};{b}m
+    Variables {r}, {g}, and {b} are rgb values
+    """
+
+    return_string = "\u001b[" #csi
         
-    if ground == "fg":
+    if ground == "fg": #sets text color aka foreground color
         return_string += "3"
-    elif ground == "bg":
+    elif ground == "bg": #sets background color
         return_string += "4"
 
-    if mode == "256":
+    if len(args) == 1:
-        return_string += "8;5;"
+        return_string += "8;5;" #SGR code for 8-bit 256 color support
-        return_string += args[0]
+        color_chart = { #human readable color names instead of 0-7
-        return_string += "m"
+            "black": 0,
-        return return_string
+            "red": 1,
-
+            "green": 2,
-    elif mode == "rgb":
+            "yellow": 3,
-        return_string += "8;2;"
+            "blue": 4,
-        return_string = return_string + args[0] + ";" + args[1] + ";" +args[2]
+            "magenta": 5,
-        return_string += "m"
+            "cyan": 6,
-        return return_string
+            "white": 7
-
-    elif mode == "normal":
-        color_chart = {
-            "black": "0",
-            "red": "1",
-            "green": "2",
-            "yellow": "3",
-            "blue": "4",
-            "magenta": "5",
-            "cyan": "6",
-            "white": "7"
         }
-        a = color_chart[args[0]]
+        color = args[0]
-        return_string += a
+
+        if type(color) == str: #human readable name
+            if "bright-" in color:
+                color = color.replace("bright-", "")
+                color = color_chart[color] + 8
+            else:
+                color = color_chart[color]
+
+        return_string += str(color)
+        return_string += "m"
+        return return_string
+
+    elif len(args) == 3:
+        return_string += "8;2;" #SGR code for 24-bit RGB
+        return_string = return_string + str(args[0]) + ";" + str(args[1]) + ";" + str(args[2]) #r;g;b
         return_string += "m"
         return return_string
 
 bell = "\u0007"
+
 backspace = "\u0008"
+bs = backspace
 
 escape = "\u001b"
 esc = escape
 
 csi = escape + "["
 
-reset = csi + "0m"
+"""
-normal = reset
+Device Status Report (DSR)
-reset_formatting = reset
+Returns cursor position to the application
+\u001b[{r};{c}R
+{r} is the row
+{c} is the column
+"""
+device_status_report = csi + "6n"
+dsr = device_status_report
 
-bold = csi + "1m"
+decaln = esc + "#8" #fills screen with E
-faint = csi +"2m"
+decid = esc + "Z"
-underline = csi + "4m"
-blink = csi + "5m"
 
-invert = csi + "7m"
+save_cursor = esc + "7"
-reverse_video = invert
+decsc = save_cursor
 
-strike = csi + "9m"
+restore_cursor = esc + "8"
-crossed_out = strike
+decrc = restore_cursor
-
-normal_intensity = csi + "22m"
-#no_italic = csi + "23m" #not vidley supported
-no_blink = csi + "25m"
-no_strike = csi + "29m"
-reset_fg = csi + "39m"
-reset_bg = csi + "49m"
-overline = csi + "53m"
-no_overline = csi + "55m"
-frame = csi + "51m"
-encircle = csi + "52m"
-no_frame = csi + "54m"

doc/color.md

@@ -0,0 +1,49 @@
+Color
+=====
+256 8-bit colors
+----------------
+```python
+print(ansi_escape.color("fg", "red") + "red text")
+```
+Makes the color of the text itself (aka the foreground color) red.  
+
+```python
+print(ansi_escape.color("bg", "bright-cyan") + "bright cyan text background")
+```
+This will make the background color bright cyan.  
+
+ansi_escape.color() also supports the numbers 0-255 [here is a list explaining each number.](https://en.wikipedia.org/wiki/ANSI_escape_code#8-bit)
+
+```python
+print(ansi_escape.color("bg", 33) + "text")
+```
+
+You can also use the following human readable names insteead of 0-16:
+
+| Instead of | Use            |
+| ---------: | :------------- |
+|           0|"black"         |
+|           1|"red"           |
+|           2|"green"         |
+|           3|"yellow"        |
+|           4|"blue"          |
+|           5|"magenta"       |
+|           6|"cyan"          |
+|           7|"white"         |
+|           8|"bright-black"  |
+|           9|"bright-red"    |
+|          10|"bright-green"  |
+|          11|"bright-yellow" |
+|          12|"bright-blue"   |
+|          13|"bright-magenta"|
+|          14|"bright-cyan"   |
+|          15|"bright-white"  |
+
+24-bit True Color
+-----------------
+To do this provide ansi_escape.color() with "fg" or "bg" + 3 comma reperated values for r, g, and b respectivley, each rgb value can be a number between 0-255.  
+
+```python
+print(ansi_escape.color("bg", 128, 0, 255) + "bg for background color")
+print(ansi_escape.color("fg", 255, 69, 128) + "fg for foreground color")
+```

doc/cursor.md

@@ -0,0 +1,49 @@
+Cursor control
+==============
+Move to spesific coordinates
+----------------------------
+To move the terminal cursor using positional coordinates use the following function:
+
+```python
+ansi_escape.cursor_position()
+```
+If the function name is to long you can use:
+
+```python
+ansi_escape.cup()
+```
+instead.
+
+```python
+ansi_escape.cup() #sets position to 1,1
+ansi_escape.cursor_position(row=5) #sets cursor position to row 5 and column 1
+ansi_escape.cup(column=16) #sets cursor position to column 16 and row 1
+ansi_escape.cursor_position(row=30, column=3) #sets cursor position to row 30 and column 3
+```
+Move cursor from current position
+---------------------------------
+For relative movements use:
+
+```python
+ansi_escape(direction, cells)
+```
+direction can be:  
+ - "up"  
+ - "down"  
+ - "forward"  
+ - "backward"  
+It is the direction the cursor moves towards.  
+
+cells is an optional argumant which specifies how many character cells you want to move the cursor.  
+
+Move cursor to spesific horisontal position
+-------------------------------------------
+Use:
+
+```python
+ansi_escape.cursor_horisontal_absolute(column)
+#or
+ansi_escape.cha(column)
+```
+column can be omitted and will then default to 1.  
+This will not affect the vertical coordinates of the cursor.

doc/delete.md

@@ -0,0 +1,38 @@
+Character deletion
+==================
+Erase character
+---------------
+```python
+ansi_escape.erase_character(n)
+```
+Will erase n amount of characters from the cursor to the right of the cursor.  
+amount defaults to 1.
+<!---Example:  
+0|1|2|3|4|5|6|7|8|9|10
+:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:--
+h|e|l|l|o|{cursor}|w|o|r|l|d
+Here the cursor is on cell 5, if you where to run--->
+Delete character
+----------------
+```python
+ansi_escape.delete_character(n)
+```
+Works just like erase_character(), but after deleting the characters it wil shift any remaining characters to the left of the cursor by n amount.  
+If n is omitted it defaults to 1.
+Erase in display
+----------------
+```python
+ansi_escape.erase_in_display(n)
+#or
+ansi_escape.ed(n)
+```
+Will erase in the display from the cursor.  
+n is the direction from the cursor to erase in and can be : forward, backward, or both. n can also be "history" which works like "both", but will also include the buffered history of the terminal. I do not reccomend using history since it is not widley supported.
+Erase in line
+-------------
+```python
+ansi_escape.erase_in_line(n)
+#or
+ansi_escape.el(n)
+```
+Like erase in display, but limited to one line. The n variable works the same way, minus the history option.

examples/ansi_escape.py

@@ -1 +0,0 @@
-/home/filip/Documents/python3/ansi_escape/ansi_escape.py

examples/backspace.py

@@ -0,0 +1,7 @@
+import ansi_escape, sys, time
+print("Hello World!!", end='')
+time.sleep(1)
+a = 0
+while a < 5:
+    a += 1
+    sys.stdout.write(ansi_escape.backspace)

examples/bell.py

@@ -0,0 +1,5 @@
+import ansi_escape
+print(ansi_escape.bell_f(10000))
+a = 10
+while a < 10:
+    print(ansi_escape.bell)

examples/choose_line_to_erase.py

@@ -1,8 +0,0 @@
-import ansi_escape
-a = 0
-while a < 10:
-    a += 1
-    print("Hello World!!")
-
-a = input()
-print(ansi_escape.move_cursor("up", str(a)) + ansi_escape.el("both"))

examples/dsr.py

@@ -0,0 +1,2 @@
+import ansi_escape, sys
+print(ansi_escape.cup(column=23, row=22) + ansi_escape.dsr)

examples/erase.py

@@ -1,2 +0,0 @@
-import ansi_escape, os
-print(ansi_escape.erase_from_cursor("2"))

examples/garble_display.py

@@ -0,0 +1,7 @@
+import ansi_escape
+from random import randint as randint
+while 1:
+    print(ansi_escape.cup(column=randint(1, 80), row=randint(1, 30)) +
+    ansi_escape.color("bg", randint(0, 255), randint(0, 255), randint(0, 255)) + 
+    " " +
+    ansi_escape.unset("all"))

examples/keyboard.py

@@ -0,0 +1,3 @@
+import ansi_escape
+print(ansi_escape.set_leds("reset"))
+input()

examples/move_cursor.py

@@ -1,7 +0,0 @@
-import keyboard, ansi_escape
-print(ansi_escape.erase_from_cursor("both"))
-keyboard.add_hotkey('up', ansi_escape.cursor, args=('up'))
-keyboard.add_hotkey('down', ansi_escape.cursor, args=('down'))
-keyboard.add_hotkey('left', ansi_escape.cursor, args=('backward'))
-keyboard.add_hotkey('right', ansi_escape.cursor, args=('forward'))
-keyboard.wait()

examples/palette.py

@@ -2,8 +2,6 @@ import ansi_escape
 color = 0
 print(ansi_escape.escape + "]0;256 Color Terminal Palette" + ansi_escape.bell)
 while color <= 255:
-    color = str(color)
+    print(ansi_escape.color("bg", color) + "   " + " " * ( len(str(color)) - 2 ) + str(color) + "   ", end="")
-    print(ansi_escape.color("256", "bg", color) + "   " + " " * ( len(color) - 2 ) + color + "   ", end="")
-    color = int(color)
     color += 1
 input()

examples/random_cursor_positions.py

@@ -1,4 +0,0 @@
-import ansi_escape, random
-while 1:
-    print(ansi_escape.set_cursor(row=str(random.randint(1,20)), column=str(random.randint(1,20))) + ansi_escape.color("normal", "bg", "red") + " " + ansi_escape.reset)
-    input()

examples/simple_colors.py

@@ -0,0 +1,10 @@
+import ansi_escape
+print(ansi_escape.set("underline"))
+print(ansi_escape.color("ul", "bright-black") + "aa")
+print(ansi_escape.color("bg", "bright-red") + "  ")
+print(ansi_escape.color("bg", "bright-green") + "  ")
+print(ansi_escape.color("bg", "bright-yellow") + "  ")
+print(ansi_escape.color("bg", "bright-blue") + "  ")
+print(ansi_escape.color("bg", "bright-magenta") + "  ")
+print(ansi_escape.color("bg", "bright-cyan") + "  ")
+print(ansi_escape.color("bg", "bright-white") + "  ")

examples/size.py

@@ -0,0 +1,2 @@
+import ansi_escape
+print(ansi_escape.esc + "[18t")

examples/test.py

@@ -1,13 +0,0 @@
-import ansi_escape
-a = 0
-while a < 256:
-    b = str(a)
-    print(ansi_escape.color("256", "bg", b) + " " + b + " " + ansi_escape.reset, end='')
-    a += 1
-
-print(ansi_escape.escape + "]0;Demo" + ansi_escape.escape + "\\")
-input()
-print("hello" + ansi_escape.move_cursor("up", "2"))
-input()
-print(ansi_escape.erase_from_cursor("forward"))
-input()

examples/title.py

@@ -0,0 +1,3 @@
+import ansi_escape
+print(ansi_escape.set_title("hello"))
+input()

readme.md

@@ -1,9 +1,23 @@
-# ansi_escape
+ansi_escape
-## A pure python3 library for ansi VT-100 escape codes
+===========
+A pure python3 library for ansi VT-100 escape codes
+---------------------------------------------------
+See the doc/ folder and ansi_escape.py for documentation (WIP)  
+See the examples directory for examples/ You need to copy the ansi_escape.py file to the example/ directory to run the examples.  
+Since this library wraps around text sent to the terminal it only returns strings that need to be put inside a print() statement, example:  
+
+```python
+print(ansi_escape.color("fg", "red") + "Hello")
+```
+On the positive side that means that you easily can send
+ output to a file using .write() or write it to the terminal using sys.stdout.write().
+You are not limited by the limitations of print().
 Features:  
- SGR (Select Graphic Rendition)  
+---------
-SGR foreground and background color in 4-bit color, 8-bit color and 24-bit color  
+SGR (Select Graphic Rendition)  
+SGR foreground and background color support with support for 256 8-bit colors and 24-bit true color  
 SGR text formating like; underline, overline and bold text  
-Easy way to use the bell character  
+Use the bell character  
-Move cursor  
+Free cursor movement  
-Clear parts of screen or line
+Clear parts of screen or line  
+Toggle keyboard leds