Command Line Interpreter

second/cli.c

@@ -0,0 +1,75 @@
+/*
+ *
+ * (c) 2005 Laurent Vivier <LaurentVivier@wanadoo.fr>
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include "console.h"
+
+void cli_edit(char *s, int length)
+{
+	int l = strlen(s);
+	int pos = l;
+	int c = 1;
+	int i;
+
+	printf("%s", s);
+
+	while ((c = console_getchar()) != '\r')
+	{
+		if ( (c > 0x1f) && (c < 0x7f) && (l < length - 1) )
+		{
+			for (i = l; i > pos; i--)
+				s[i] = s[i - 1];
+			s[pos] = c;
+			printf("%s", s + pos);
+			l++;
+			pos++;
+			for (i = l; i > pos; i--)
+				putchar('\b');
+		}
+		else switch(c)
+		{
+			case '':
+				if (pos > 0)
+				{
+					putchar('\b');
+					pos--;
+				}
+				break;
+			case '':
+				if (pos < l)
+				{
+					putchar(s[pos]);
+					pos++;
+				}
+				break;
+			case '\b':	/* backspace */
+				if (pos > 0)
+				{
+					putchar('\b');
+					pos--;
+					strcpy(s + pos, s + pos + 1);
+					printf("%s", s + pos);
+					putchar(' ');
+					for (i = l; i > pos; i--)
+						putchar('\b');
+					l--;
+				}
+				break;
+			case 0x7f:	/* Delete */
+				if (pos < l)
+				{
+					strcpy(s + pos, s + pos + 1);
+					l--;
+					printf("%s", s + pos);
+					for (i = l; i > pos; i--)
+						putchar('\b');
+				}
+				break;
+		}
+	}
+}

second/cli.h

@@ -0,0 +1,7 @@
+/*
+ *
+ * (c) 2005 Laurent Vivier <LaurentVivier@wanadoo.fr>
+ *
+ */
+
+extern void cli_edit(char *s, int length);