Adding string.h & printf()

1 files changed, 52 insertions, 15 deletions

diff --git a/src/tty.c b/src/tty.c
index c3fe295..bb3965d 100644
--- a/src/tty.c
+++ b/src/tty.c
@@ -1,32 +1,69 @@
 #include<stdbool.h>
 #include<stddef.h>
 #include<stdint.h>
-bool stringcmp(char *str1,char *str2);
-size_t pieces(char pieces[][15],char *buffer);
+
+#include"string.h"
+#include"stdio.h"
+
+#define CMD_LENGTH 20
+
 void clear();
-void terminal_writestring(const char* data);
-void terminal_putchar(char c);
 
-void echo(size_t numberof,char parts[][15])
+size_t pieces(char pieces[][CMD_LENGTH],char *buffer)
+{
+    for(size_t x=0;x<CMD_LENGTH;x++) for(size_t y=0;y<CMD_LENGTH;y++) pieces[x][y]='\0';
+
+    size_t i=0,j=0,r=0;
+    while(buffer[i]==' '&&buffer[i]!='\0') i++;
+    for(;buffer[i]!='\0';i++)
+    {
+	if(buffer[i]==' ')
+	{
+	    while(buffer[i]==' '&&buffer[i]!='\0') i++;
+	    j=0;
+	    r++;
+	    i--;
+	}
+	else
+	{
+	    pieces[r][j++]=buffer[i];
+	}
+    }
+    return r+1;
+}
+
+void echo(size_t numberof,char parts[][CMD_LENGTH])
 {
     for(size_t i=1;i<numberof;i++)
     {
-	terminal_writestring(parts[i]);
-	terminal_putchar(' ');
+	printf("%s ",parts[i]);
     }
-    terminal_putchar('\n');
+    printf("\n");
+}
+
+void merge(char parts[][CMD_LENGTH])
+{
+    char *str1=parts[1];
+    char *str2=parts[2];
+    stringcat(str1,str2);
+    printf("%s\n",str1);
+}
+
+void ls(size_t numberof,char parts[][CMD_LENGTH])
+{
+    size_t i=numberof;
+    char *part=parts[0];
+    printf("filesystem not implemented yet\n");
 }
 
 void tty(char *buffer)
 {
-    char parts[15][15];
+    char parts[CMD_LENGTH][CMD_LENGTH];
     size_t numberof=pieces(parts,buffer);
     if(stringcmp(parts[0],"clear")) clear();
     else if(stringcmp(parts[0],"echo")) echo(numberof,parts);
-    else
-    {
-	terminal_writestring("command not found: ");
-	terminal_writestring(parts[0]);
-	terminal_putchar('\n');
-    }
+    else if(stringcmp(parts[0],"merge")) merge(parts);
+    else if(stringcmp(parts[0],"ls")) ls(numberof,parts);
+    else if(stringcmp(parts[0],"number")) printf("number times two is %d\n",stoi(parts[1])*2);
+    else printf("command not found: %s\n",parts[0]);
 }