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Old 11 April 2010, 07:25   #1
zoneuser
 
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Expanding command line wildcards and Icon Drag and Drop

Wildcard Expansion:
How do you handle command line wildcards such as #? when writing a command line tool in C. I want my tool to take action on all files passed by the command line; ie: tool.exe #?

Icon Drag and Drop
How do I write code to handle files dragged onto my tool's icon. For example, when I drag a file(s) from workbench onto my tools icon I want to know how to get the dragged icon's filename(s).

I'm using SAS/C.

Any help/code examples would be appreciated.
 
Old 11 April 2010, 10:29   #2
thomas
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Quote:
How do you handle command line wildcards such as #? when writing a command line tool in C.
See ParsePattern/NoCase and MatchPattern/NoCase in dos.library. In 1.3 and below you can use arp.library for that.

Quote:
How do I write code to handle files dragged onto my tool's icon.
See AddAppIcon/AddAppWindow/AddAppMenu in workbench.library. In 1.3 and below there is no way to do this.


Come back when you've read the autodocs and still are suck.
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Old 13 April 2010, 09:05   #3
zoneuser
 
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I've got the argument handling finished. Now I'm trying to do some directory recursion using exnext.

I can't seem to get it right. Does anyone have some sample code for traversing directory trees recursively?
 
Old 13 April 2010, 10:47   #4
thomas
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Code:
#include <proto/dos.h>

char indent[] = "                                                                                ";


BOOL read_dir (ULONG level,char *path,BOOL recursive)

{
BOOL success = FALSE;
BPTR lock;
struct FileInfoBlock *fib;
BPTR oldcd;

if (fib = AllocDosObject (DOS_FIB,TAG_END))
	{
	if (lock = Lock (path,SHARED_LOCK))
		{
		if (Examine (lock,fib))	
			{
			success = TRUE;

			if (fib->fib_DirEntryType > 0)
				{
				if (level == 0)
					Printf ("Contents of directory %s\n",fib->fib_FileName);

				oldcd = CurrentDir (lock);
				while (ExNext (lock,fib))
					{
					if (fib->fib_DirEntryType > 0)
						{
						Printf ("%s   (Dir) %s\n",&indent[80-2*level],fib->fib_FileName);
						if (recursive)
							read_dir (level+1,fib->fib_FileName,recursive);
						}
					else
						Printf ("%s%8lu %s\n",&indent[80-2*level],fib->fib_Size,fib->fib_FileName);
					}
				CurrentDir (oldcd);
				}
			else
				Printf ("%s%8lu %s\n",&indent[80-2*level],fib->fib_Size,fib->fib_FileName);
			}

		UnLock (lock);
		}
	FreeDosObject (DOS_FIB,fib);
	}

return (success);
}



int main (void)

{
struct RDArgs *rdargs;
struct {
	char *path;
	long all;
	} args = {"",0};
int rc;

rdargs = ReadArgs ("PATH,ALL/S",(LONG *)&args,NULL);
if (!rdargs)
	{
	PrintFault (IoErr(),"error in arguments");
	return (RETURN_ERROR);
	}

rc = RETURN_FAIL;

if (read_dir (0,args.path,args.all))
	rc = RETURN_OK;

FreeArgs (rdargs);

return (rc);
}
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Old 13 April 2010, 15:17   #5
thomas
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By the way, as you were asking about wildcards before, you probably want to combine directory reading with wildcard resolution. For this the examine/exnext approach with manual recursion is not the best idea. You'd better use MatchFirst/MatchNext/MatchEnd. This works similar to the List shell command.

Here is an example. It's basically the example from the OS 4.0 SDK, adjusted for OS 3.x:

Code:
#include <proto/exec.h>
#include <proto/dos.h>
#include <dos/dostags.h>
#include <dos/dosasl.h>


int main (void)

{
struct RDArgs *rdargs;
struct {
	char *path;
	long all;
	} args = {"",0};
struct AnchorPath *ap;
LONG error;
LONG level,i;

rdargs = ReadArgs ("PATH,ALL/S",(LONG *)&args,NULL);
if (!rdargs)
	{
	PrintFault (IoErr(),NULL);
	return (RETURN_FAIL);
	}

if (ap = AllocVec (sizeof(struct AnchorPath) + 1024,MEMF_CLEAR))
	{
	ap->ap_BreakBits = SIGBREAKF_CTRL_C;
	ap->ap_Strlen = 1024;
	}

level = 0;

error = MatchFirst (args.path,ap);
if (error == 0 && ap->ap_Info.fib_DirEntryType >= 0)
	ap->ap_Flags |= APF_DODIR;

while (error == 0)
	{
	if (ap->ap_Flags & APF_DIDDIR)
		{
		/* Leaving a directory entered below (APF_DODIR) */
		level--;
		ap->ap_Flags &= ~APF_DIDDIR;
		}
	else
		{
		/* Soft linked objects are returned by the scanner
		   but they need special treatment; we are merely
		   ignoring them here in order to keep this
		   example simple */
		if (ap->ap_Info.fib_DirEntryType != ST_SOFTLINK)
			{
			/* Provide for some indentation */
			for (i = 0 ; i < level ; i++)
				Printf (" ",0);

			Printf ("%s%s\n",ap->ap_Buf,
				(ap->ap_Info.fib_DirEntryType < 0) ? "" : " (Dir)");

			/* If this is a directory, enter it */
			if (ap->ap_Info.fib_DirEntryType >= 0 && args.all)
				{
				ap->ap_Flags |= APF_DODIR;
				level++;
				}
			}
		}

	error = MatchNext (ap);
	}

MatchEnd (ap);

FreeVec (ap);

FreeArgs (rdargs);

return (RETURN_OK);
}
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Old 13 April 2010, 19:35   #6
zoneuser
 
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Thank you so much!

Do you know of any good websites with examples for Amiga coding?
 
 


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