using System;
using System.IO;
using System.Text.RegularExpressions;
using System.Windows.Forms;
namespace RobvanderWoude
{
class PDFPageCount
{
static int Main( string[] args )
{
#region Get help
if ( args.Length == 0 )
{
ShowHelp( );
return 0;
}
foreach ( string arg in args )
{
if ( arg == "/?" || arg == "-?" || arg.ToLower( ) == "--help" )
{
ShowHelp( );
return 0;
}
}
#endregion
int errors = 0;
foreach ( string arg in args )
{
try
{
Regex regexp = new Regex( @"^(.*)([^]+.pdf)$", RegexOptions.IgnoreCase );
if ( regexp.IsMatch( arg ) )
{
// Match means the filespec has a valid format (i.e. *.pdf)
string[] matches = regexp.Split( arg );
string folder = matches[1];
string filespec = matches[2];
if ( Directory.Exists( folder ) )
{
// Folder exists, check for matching files
string[] fileList = Directory.GetFiles( folder, filespec );
if ( fileList.Length == 0 )
{
// No matching files in this folder
ShowError( "ERROR: No files matching "{0}" were found in "{1}"", filespec, folder );
errors += 1;
}
else
{
// Iterate through list of matching files
foreach ( string file in fileList )
{
int pagecount = PageCount( file );
if ( pagecount == -1 )
{
// Just increase the error count, the PageCount( )
// procedure already wrote an error message to screen
errors += 1;
}
else
{
// No pages means there is a problem with the file
if ( pagecount == 0 )
{
Console.ForegroundColor = ConsoleColor.Red;
errors += 1;
}
// Display the formated result on screen
Console.WriteLine( "{0,4} {1,-10} {2}", pagecount.ToString( ), ( pagecount == 1 ? "page" : "pages" ), file );
if ( pagecount == 0 )
{
Console.ForegroundColor = ConsoleColor.Gray;
}
}
}
}
}
else
{
// Folder doesn't exist
ShowError( "ERROR: Folder "{0}" not found", folder );
errors += 1;
}
}
else
{
// No match for the regular expression means the filespec was invalid
ShowError( "ERROR: Invalid filespec "{0}", please specify PDF files only", arg );
errors += 1;
}
}
catch ( Exception e )
{
// All other errors: display an error message and then
continue
ShowError( "ERROR: {0}", e.Message );
errors += 1;
}
}
if ( errors != 0 )
{
ShowError( "{0} finished with {1} error{2}", GetExeName( ), errors.ToString( ), ( errors == 1 ? "" : "s" ) );
}
return errors;
}
static string GetExeName( )
{
string exe = Application.ExecutablePath.ToString( );
Regex regexp = new Regex( @"([^]+)$" );
return regexp.Split( exe )[1];
}
static int PageCount( string filename )
{
Regex regexp = new Regex( @".pdf$", RegexOptions.IgnoreCase );
if ( regexp.IsMatch( filename ) )
{
try
{
FileStream fs = new FileStream( filename, FileMode.Open, FileAccess.Read );
StreamReader sr = new StreamReader( fs );
string pdfText = sr.ReadToEnd( );
regexp = new Regex( @"/Types*/Page[^s]" );
MatchCollection matches = regexp.Matches( pdfText );
return matches.Count;
}
catch ( Exception e )
{
ShowError( "ERROR: {0} ({1})", e.Message, filename );
return -1;
}
}
else
{
ShowError( "ERROR: {0} is not a PDF file", filename );
return -1;
}
}
static void ShowError( string message, string param1, string param2 = "", string param3 = "" )
{
Console.Error.WriteLine( );
Console.ForegroundColor = ConsoleColor.Red;
Console.Error.WriteLine( message, param1, param2, param3 );
Console.ForegroundColor = ConsoleColor.Gray;
Console.Error.WriteLine( );
}
#region Display help text
static void ShowHelp( )
{
Console.Error.WriteLine( );
Console.Error.WriteLine( "{0}, Version 1.02", GetExeName( ) );
Console.Error.WriteLine( "Return the page count for the specified PDF file(s)" );
Console.Error.WriteLine( );
Console.Error.WriteLine( "Usage: {0} filespec [ filespec [ filespec [ ... ] ] ]", GetExeName( ).ToUpper( ) );
Console.Error.WriteLine( );
Console.Error.WriteLine( "Where: "filespec"is a file specification for the PDF file(s) to" );
Console.Error.WriteLine( " be listed (wildcards * and ? are allowed)" );
Console.Error.WriteLine( );
Console.Error.WriteLine( "Note:The program's return code equals the number of errors encountered." );
Console.Error.WriteLine( );
Console.Error.WriteLine( "Written by Rob van der Woude" );
}
#endregion
}
}
