include libslang-1.4.9 and automatically build it and link erlang-slang against it

few (erlang) people will still have libslang-1.4.9 installed or spend time
to get it to link against the driver

1 files changed, 46 insertions, 0 deletions

diff --git a/libslang/examples/assoc.sl b/libslang/examples/assoc.sl
new file mode 100644
index 0000000..c4b2b37
--- /dev/null
+++ b/libslang/examples/assoc.sl
@@ -0,0 +1,46 @@
+% This example illustrates the use of associative arrays.  
+% The function 'analyse_file' counts the number of occurrences of each word
+% in a specified file.  Once the file has been read in, it writes out
+% the list of words and number of occurrences to the file counts.log
+
+define analyse_file (file)
+{
+   variable fp;
+   variable line;
+   variable i, a, n, word;
+   variable keys, values;
+
+   fp = fopen (file, "r");
+   if (fp == NULL)
+     verror ("Unable to open %s", file);
+   
+   % Create an Integer_Type assoc array with default value of 0.
+   a = Assoc_Type[Integer_Type, 0];
+   
+   while (-1 != fgets (&line, fp))
+     {
+	foreach (strtok (strlow(line), "^a-zA-Z\d128-\d255"))
+	  {
+	     word = ();
+	     a[word] = a[word] + 1;    %  default value of 0 assumed!!
+	  }
+     }
+   
+   () = fclose (fp);
+   keys = assoc_get_keys (a);
+   values = assoc_get_values (a);
+
+   i = array_sort (values);
+   keys = keys[i];
+   values = values[i];
+
+   fp = fopen ("count.log", "w");
+   % The default array_sort for Int_Type is an ascending sort.  We want the 
+   % opposite.
+   for (i = n-1; i >= 0; i--)
+     {
+	() = fputs (sprintf ("%s:\t%d\n", keys[i], values[i]), fp);
+     }
+   () = fclose (fp);
+}
+