Easy commands pageup/pagedown added to fast list file content

4 files changed, 210 insertions, 4 deletions

diff --git a/cmd/cmd_pagedown.c b/cmd/cmd_pagedown.c
new file mode 100644
index 0000000..8c4e3c4
--- /dev/null
+++ b/cmd/cmd_pagedown.c
@@ -0,0 +1,98 @@
+#include "buf.h"
+#include "core.h"
+
+#include "libcmd/cmd.h"
+#include "libcmd/cmd_parse.h"
+
+extern file_t *g_file;
+extern Buf *g_buf;
+extern int g_flags;
+
+/*
+ * blk - show block size
+ * blk <num> - set block size
+ */
+int c_pagedown( cmd_arg_t *arg )
+{
+	int argc = arg->argc;
+	char **argv = arg->argv;
+	int *type = arg->type;
+	int ret=-1;
+	int i,j;
+
+	printf("Set file position\n");
+
+	//move position
+	int pos = file_pos(g_file);
+	printf("pos %d\n",pos);
+	printf("buf size %d\n",g_buf->size());
+	pos += g_buf->size();
+	printf("pos %d\n",pos);
+	file_seekp(g_file, pos);
+
+	//read from file
+	if (g_buf->isempty())
+	{
+		//buf_resize( g_buf, g_file->blk_size );
+		g_buf->realloc(g_file->blk_size);
+	}
+
+	printf("read file\n");
+
+	char *buf_ptr;
+	int sz;
+	g_buf->get_ptr(&buf_ptr,&sz);
+	sz = g_buf->size();
+	//printf("sz %d ptr %lx",sz,buf_ptr);
+	ret = file_read_blk( g_file, (uint8_t *)buf_ptr, sz );
+	printf("Readed %d bytes\n", ret);
+	if ( (ret >= 0) && (ret <= g_buf->size()) )
+	{
+		g_buf->set_size(ret);
+	}
+
+	//dump buffer
+	for (i=0; i<g_buf->cursize(); i+=16)
+	{
+		for (j=i; j<i+16; j++)
+		{
+			if ( j<g_buf->cursize() )
+			{
+				char c;
+				g_buf->getc(j,&c);
+				printf("%02x ",(unsigned char)c);
+			} else
+			{
+				printf("   ");
+			}
+		}
+
+		for (j=i; j<i+16; j++)
+		{
+			if ( j<g_buf->cursize() ) //wrong place move to cycle?
+			{
+				char c;
+				g_buf->getc(j,&c);
+				if ( isprint(c) )
+				{
+					
+					printf("%c",(unsigned char)c);
+				} else
+				{
+					printf("\e[7m.\e[0m");
+				}
+			}
+		}
+		printf("\n");
+	}
+	printf("\n");
+	
+
+	return 0;
+}
+
+int h_pagedown( cmd_arg_t *arg )
+{
+	printf("- move position +block_size and dumpx");
+	return 0;
+}
\ No newline at end of file
diff --git a/cmd/cmd_pageup.c b/cmd/cmd_pageup.c
new file mode 100644
index 0000000..4e0612b
--- /dev/null
+++ b/cmd/cmd_pageup.c
@@ -0,0 +1,99 @@
+#include "buf.h"
+#include "core.h"
+
+#include "libcmd/cmd.h"
+#include "libcmd/cmd_parse.h"
+
+extern file_t *g_file;
+extern Buf *g_buf;
+extern int g_flags;
+
+/*
+ * blk - show block size
+ * blk <num> - set block size
+ */
+int c_pageup( cmd_arg_t *arg )
+{
+	int argc = arg->argc;
+	char **argv = arg->argv;
+	int *type = arg->type;
+	int ret=-1;
+	int i,j;
+
+	printf("Set file position\n");
+
+	//move position
+	int pos = file_pos(g_file);
+	printf("pos %d\n",pos);
+	printf("buf size %d\n",g_buf->size());
+	pos -= g_buf->size();
+	printf("pos %d\n",pos);
+	file_seekp(g_file, pos);
+
+	//read from file
+	if (g_buf->isempty())
+	{
+		//buf_resize( g_buf, g_file->blk_size );
+		g_buf->realloc(g_file->blk_size);
+	}
+
+	printf("read file\n");
+
+	char *buf_ptr;
+	int sz;
+	g_buf->get_ptr(&buf_ptr,&sz);
+	sz = g_buf->size();
+	//printf("sz %d ptr %lx",sz,buf_ptr);
+	ret = file_read_blk( g_file, (uint8_t *)buf_ptr, sz );
+	printf("Readed %d bytes\n", ret);
+	if ( (ret >= 0) && (ret <= g_buf->size()) )
+	{
+		g_buf->set_size(ret);
+	}
+
+	//dump buffer
+	for (i=0; i<g_buf->cursize(); i+=16)
+	{
+		for (j=i; j<i+16; j++)
+		{
+			if ( j<g_buf->cursize() )
+			{
+				char c;
+				g_buf->getc(j,&c);
+				printf("%02x ",(unsigned char)c);
+			} else
+			{
+				printf("   ");
+			}
+		}
+
+		for (j=i; j<i+16; j++)
+		{
+			if ( j<g_buf->cursize() ) //wrong place move to cycle?
+			{
+				char c;
+				g_buf->getc(j,&c);
+				if ( isprint(c) )
+				{
+					
+					printf("%c",(unsigned char)c);
+				} else
+				{
+					printf("\e[7m.\e[0m");
+				}
+			}
+		}
+		printf("\n");
+	}
+	printf("\n");
+	
+
+	return 0;
+	return 0;
+}
+
+int h_pageup( cmd_arg_t *arg )
+{
+	printf("- move down by block size,read and hexdump");
+	return 0;
+}
\ No newline at end of file
diff --git a/ihe.c b/ihe.c
index 4390586..aacd301 100644
--- a/ihe.c
+++ b/ihe.c
@@ -436,9 +436,15 @@ cmd_table_t tab[] = {
 	{"ls",        c_ls,  h_ls, NULL, NULL},
 	{"pwd",       c_pwd,  h_pwd, NULL, NULL},
 	{"cd",        c_cd,  h_cd, NULL, NULL},
-	//{"create",    c_create},
-	//{"th",        c_th},
-	//{"tw",        c_tw},
+	{"pageup",    c_pageup,  h_pageup, NULL, NULL},
+	{"pagedown",  c_pagedown,  h_pagedown, NULL, NULL},
+	//{"goto",      c_goto, h_goto, NULL, NULL},
+	//{"bwrite",    c_bwrite, h_bwrite, NULL, NULL},
+	//{"bread",     c_bread, h_bread, NULL, NULL},
+	//{"create",    c_create, h_create, NULL, NULL},
+	//{"th",        c_th. h_th, NULL, NULL},
+	//{"tw",        c_tw, h_tw, NULL, NULL},
+	//{"tfit",      c_tfit, h_tfit, NULL, NULL},
 	{NULL, NULL ,  NULL, NULL, NULL},
 };
 
diff --git a/ihe.h b/ihe.h
index 6f553c6..eb6c5db 100644
--- a/ihe.h
+++ b/ihe.h
@@ -53,6 +53,9 @@ int c_writes( cmd_arg_t *arg );
 int h_writes( cmd_arg_t *arg );
 int c_resize( cmd_arg_t *arg );
 int h_resize( cmd_arg_t *arg );
-
+int c_pagedown( cmd_arg_t *arg );
+int h_pagedown( cmd_arg_t *arg );
+int c_pageup( cmd_arg_t *arg );
+int h_pageup( cmd_arg_t *arg );
 
 #endif
\ No newline at end of file