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authorAlessio Treglia <alessio@debian.org>2011-09-03 12:12:54 +0200
committerAlessio Treglia <alessio@debian.org>2011-09-03 12:12:54 +0200
commita25eb08be6af9cc6580f9731a1e515be120331fc (patch)
treed28f304fa76bb0175ae1d887cf4c4b27d8ac29ec /src/simple-scan.vala
parent5c8211aeb400deaf51d30eddd0c92017db7b4422 (diff)
parent8227fe5bd1a0cee50359c2581184c32a371c754e (diff)
Merge commit 'upstream/3.1.90'
Diffstat (limited to 'src/simple-scan.vala')
-rw-r--r--src/simple-scan.vala79
1 files changed, 79 insertions, 0 deletions
diff --git a/src/simple-scan.vala b/src/simple-scan.vala
index 0ced7ad..cff06f8 100644
--- a/src/simple-scan.vala
+++ b/src/simple-scan.vala
@@ -13,6 +13,7 @@ public class Application
{
static bool show_version;
static bool debug_enabled;
+ static string? fix_pdf_filename = null;
public static const OptionEntry[] options =
{
{ "version", 'v', 0, OptionArg.NONE, ref show_version,
@@ -21,6 +22,8 @@ public class Application
{ "debug", 'd', 0, OptionArg.NONE, ref debug_enabled,
/* Help string for command line --debug flag */
N_("Print debugging messages"), null},
+ { "fix-pdf", 0, 0, OptionArg.STRING, ref fix_pdf_filename,
+ N_("Fix PDF files generated with older versions of Simple Scan"), "FILENAME..."},
{ null }
};
private static Timer log_timer;
@@ -455,6 +458,67 @@ public class Application
{
scanner.redetect ();
}
+
+ private static void fix_pdf (string filename) throws Error
+ {
+ uint8[] data;
+ FileUtils.get_data (filename, out data);
+
+ var fixed_file = FileStream.open (filename + ".fixed", "w");
+
+ var offset = 0;
+ var line_number = 0;
+ var xref_offset = 0;
+ var xref_line = -1;
+ var xref_regex = new Regex ("^\\d\\d\\d\\d\\d\\d\\d\\d\\d\\d 0000 n$");
+ MatchInfo xref_match;
+ var line = new StringBuilder ();
+ while (offset < data.length)
+ {
+ var end_offset = offset;
+ line.assign ("");
+ while (end_offset < data.length)
+ {
+ var c = data[end_offset];
+ line.append_c ((char) c);
+ end_offset++;
+ if (c == '\n')
+ break;
+ }
+
+ if (line.str == "startxref\n")
+ xref_line = line_number;
+
+ /* Fix PDF header and binary comment */
+ if (line_number < 2 && line.str.has_prefix ("%%"))
+ {
+ xref_offset--;
+ fixed_file.printf ("%s", line.str.substring (1));
+ }
+
+ /* Fix xref format */
+ else if (xref_regex.match (line.str, 0, out xref_match))
+ fixed_file.printf ("%010d 00000 n \n", int.parse (xref_match.get_string ()) + xref_offset);
+
+ /* Fix xref offset */
+ else if (xref_line > 0 && line_number == xref_line + 1)
+ fixed_file.printf ("%d\n".printf (int.parse (line.str) + xref_offset));
+
+ /* Fix EOF marker */
+ else if (line_number == xref_line + 2 && line.str.has_prefix ("%%%%"))
+ fixed_file.printf ("%s", line.str.substring (2));
+
+ else
+ for (var i = offset; i < end_offset; i++)
+ fixed_file.putc ((char) data[i]);
+
+ line_number++;
+ offset = end_offset;
+ }
+
+ if (FileUtils.rename (filename, filename + "~") >= 0)
+ FileUtils.rename (filename + ".fixed", filename);
+ }
public static int main (string[] args)
{
@@ -487,6 +551,21 @@ public class Application
stderr.printf ("simple-scan %s\n", Config.VERSION);
return Posix.EXIT_SUCCESS;
}
+ if (fix_pdf_filename != null)
+ {
+ try
+ {
+ fix_pdf (fix_pdf_filename);
+ for (var i = 1; i < args.length; i++)
+ fix_pdf (args[i]);
+ }
+ catch (Error e)
+ {
+ stderr.printf ("Error fixing PDF file: %s", e.message);
+ return Posix.EXIT_FAILURE;
+ }
+ return Posix.EXIT_SUCCESS;
+ }
ScanDevice? device = null;
if (args.length > 1)