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William J Giddings · Familiar Face Joined: 17 Jan 2010 Posts: 42

One little task that I was working on yesterday was converting a string in the form of a list space separated items, into a NULL terminated array. Ok, its simple in Tcl, but not so straight forward in C. Imagine this as:

Code: (Plaintext)
1 2	char *str; str = “but1 but2 but3”;

This needs to become the equivalent of:

Code: (Plaintext)
1	char *objnames[] = { "but1", “but2”, “but3”, NULL };

What is the most effective way of doing this?

I’ve thought of ‘tokenizing’ the source string and dynamically building an array, but then, there’s no assurance that each entry in the new array will have the same size. That is, instead of “but1 but2 but3” might, during run time, be “b1 but2 button3” or something similar.

The idea of to allow me to successfully complete the following line of code to complete the loading of portions of a builder UI xml file into a pre-existing container object. This is the relevant command.

Code: (Plaintext)
1	gtk_builder_add_objects_from_string ( builder, builder_ui, strlen ( builder_ui ) * sizeof ( gchar ), objnames, NULL );

Will

Last edited by William J Giddings on Sat Mar 13, 2010 9:48 am; edited 1 time in total

owl102 · GTK+ Geek Joined: 23 May 2008 Posts: 68

William J Giddings · Familiar Face Joined: 17 Jan 2010 Posts: 42

Thanks for that! It was exactly what I was looking for.

WJG