From 77d7c356e9db81f780b83f0cd10b654eb8be1302 Mon Sep 17 00:00:00 2001
From: Tom-on64 <kubecekt@gmail.com>
Date: Tue, 28 May 2024 20:43:30 +0200
Subject: [PATCH] Added \ escape code support in echo command!

---
 docs/escape.txt | 29 ++++++++++++++++++++---------
 src/kernel.c    | 23 ++++++++++++++++++++++-
 2 files changed, 42 insertions(+), 10 deletions(-)

diff --git a/docs/escape.txt b/docs/escape.txt
index 47b349b..335d0b3 100644
--- a/docs/escape.txt
+++ b/docs/escape.txt
@@ -11,25 +11,36 @@ Note: the escape character will be denoted by ESC here
 Syntax:
     All escape sequenced start with the escape character followed by an opening square bracket '['
     The sequence can take any number of arguments in a semicolon separated list
-    If a argument is skipped, it will be implicitly set to 0
+    If a argument is skipped, it will be implicitly set to 0 unless stated otherwise 
     The escape sequence must end with a uppercase or lowercase letter
 
 Available escape sequences:
     - Cursor Controls -
-    `ESC[#A` - Moves cursor # rows up
-    `ESC[#B` - Moves cursor # rows down
-    `ESC[#C` - Moves cursor # columns left
-    `ESC[#D` - Moves cursor # columns right
+    `ESC[#A` - Moves cursor # rows up (default: 1)
+    `ESC[#B` - Moves cursor # rows down (default: 1)
+    `ESC[#C` - Moves cursor # columns left (default: 1)
+    `ESC[#D` - Moves cursor # columns right (default: 1)
     `ESC[#E` - Moves cursor to #th row
     `ESC[#F` - Moves cursor to #th column
     `ESC[#G` - Show (# = 1) or hide (# = 0) cursor
-    `ESC[{row};{col}H`  - Moves cursor to specified position (if not arguments given, moves to [0,0])a
+    `ESC[{row};{col}H`  - Moves cursor to specified position (if not arguments given, moves to [0,0])
     - Erase functions -
-    `ESC[I`  - Reserved
+    `ESC[I`  - Reserved (Falls though to erase screen)
     `ESC[J`  - Erase screen
     `ESC[K`  - Erase line (not implemented)
     `ESC[L`  - Erase column (not implemented)
     - Text Style -
-    `ESC[#M` - Sets foreground color to #
-    `ESC[#N` - Sets backgorund color to #
+    `ESC[#M` - Sets foreground color to # (default 8)
+    `ESC[#N` - Sets backgorund color to # (default 8)
+
+Color codes:
+    0 - Black   
+    1 - Red     
+    2 - Green   
+    3 - Yellow  
+    4 - Blue    
+    5 - Magenta 
+    6 - Cyan    
+    7 - White   
+    8 - Default
 
diff --git a/src/kernel.c b/src/kernel.c
index 6c6bc81..b4559f0 100644
--- a/src/kernel.c
+++ b/src/kernel.c
@@ -22,6 +22,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
+#include <color.h>
 
 #define PROMPT "#> "
 
@@ -133,7 +134,27 @@ void main() {
                 continue;
             }
         } else if (strcmp(input, "echo") == 0) {
-            print(args);
+            char* str = args;
+            char* printStr = args;
+
+            while (*args != '\0') {
+                if (*args == '\\') {
+                    args++;
+                    if (*args == 'n') *str++ = '\n';
+                    else if (*args == 'b') *str++ = '\b';
+                    else if (*args == 'e') *str++ = '\x1b';
+                    else if (*args == '\\') *str++ = '\\';
+                    else {
+                        *str++ = '\\';
+                        *str++ = *args;
+                    }
+                    args++;
+                } else {
+                    *str++ = *args++;
+                }
+            }
+            *str = '\0';
+            print(printStr);
         } else if (strcmp(input, "exit") == 0) {
             break;
         } else if (strcmp(input, "gfx") == 0) {