On Wed, Jan 30, 2013 at 8:39 AM, Rudra Banerjee
<rudra.baner...@aol.co.uk> wrote:
> Dear friends,
> I am trying hard to get rid of file reading and editing (as evident from
> my previous post)
> Here is a small code where I tried to open my file in a buffer and scan.
> Its small, 50 line code.
> I will be grateful if anybody kindly have a look and tell if this is
> really opening the file from buffer or still using the file. Please
> help.
I can't tell you what it is 'still' doing, however in the code portions
which you've posted here, you are first reading the contents of the
file into a buffer using g_file_get_contents(); and then parsing
that buffer afterwards.
I assume this is what you're after, however I should point out
that naming your allocated buffer 'fd' is thoroughly confusing
to the reader.
At first glance, it would appear that your scanner is operating
on an fd, i.e. a file descriptor, not an allocated buffer.
Cheers,
-Tristan
>
>
> void open_file(GtkWidget *widget, gpointer data){
> GScanner *scanner;
> GHashTable *table;
> char* fd;
> gsize length;
> GError* error=NULL;
> GtkWidget *dialog; //, *entry;
> GtkFileFilter *filter;
> dialog = gtk_file_chooser_dialog_new("Open File", NULL,
> GTK_FILE_CHOOSER_ACTION_OPEN,
> GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
> GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
> NULL);
>
> filter = gtk_file_filter_new();
> gtk_file_filter_set_name(filter, "All files (*.*)");
> gtk_file_filter_add_pattern(filter, "*");
> gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(dialog), filter);
>
> filter = gtk_file_filter_new();
> gtk_file_filter_set_name(filter, "Bibtex file (*.bib)");
> gtk_file_filter_add_pattern(filter, "*.bib");
> gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(dialog), filter);
> gtk_file_chooser_set_filter(GTK_FILE_CHOOSER(dialog), filter);
>
> if (gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT) {
> filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));
> gtk_list_store_clear (store);
> g_file_get_contents(filename, &fd, &length , &error);
> g_assert(!error);
>
> scanner = g_scanner_new (NULL);
> g_scanner_input_text (scanner, fd, CHAR_BUFF);
>
> table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free,
> g_free);
> do
> {
> g_hash_table_remove_all (table);
> parse_entry (scanner, table);
> output_entry (table);
>
> g_scanner_peek_next_token (scanner);
> }
> while (scanner->next_token != G_TOKEN_EOF &&
> scanner->next_token != G_TOKEN_ERROR);
>
>
> /* finsish parsing */
> g_scanner_destroy (scanner);
> g_hash_table_destroy (table);
>
> gtk_label_set_text(GTK_LABEL(flabel), filename);
> gtk_widget_destroy(dialog);
> }
> else
> gtk_widget_destroy(dialog);
> }
>
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