From 7e0f021a9aec35fd8e6725e87e3313b101d26f5e Mon Sep 17 00:00:00 2001
From: Tobias Klauser <tklauser@distanz.ch>
Date: Sun, 27 Jan 2008 11:37:44 +0100
Subject: Initial import (2.0.2-6)

---
 reference/C/EXAMPLES/perl2.c | 106 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 106 insertions(+)
 create mode 100644 reference/C/EXAMPLES/perl2.c

(limited to 'reference/C/EXAMPLES/perl2.c')

diff --git a/reference/C/EXAMPLES/perl2.c b/reference/C/EXAMPLES/perl2.c
new file mode 100644
index 0000000..edbde2e
--- /dev/null
+++ b/reference/C/EXAMPLES/perl2.c
@@ -0,0 +1,106 @@
+/********************************************************************
+ *
+ * Date:    11-May-97
+ *
+ * Purpose: Imbed PERL code in C.
+ *
+ * Notes:   This code is based on the examples found in the
+ *          Perl man pages.
+ *
+ * Compile: To compile this code you will need a starement simular too:
+ *
+ *  g++ perl2.c -L/usr/lib/perl5/i586-linux/5.003/CORE
+ *              -I/usr/lib/perl5/i586-linux/5.003/CORE
+ *              -lperl
+ *              -lm
+ *
+ * This program uses the C++ compiler as there seem to be problems
+ * With the header files on Linux when using GCC.
+ *
+ ********************************************************************/
+
+#include <stdio.h>
+#include <EXTERN.h>
+#include <perl.h>
+
+/********************************************************************/
+
+PerlInterpreter        *my_perl;
+
+void PerlInit(char **env);
+int  PerlEval(char  *string);
+void PerlEnd (void);
+
+/********************************************************************/
+
+main (
+  int                   argc,
+  char                **argv,
+  char                **env)
+{
+  unsigned int          Length;
+
+  // ...        Initalise.
+
+  PerlInit(env);
+
+  // ...        Some basic Perl statements
+  
+  PerlEval("$a = 3;");
+  PerlEval("$a = $a+2;");
+
+  // ...        Extract an integer perl value into the C code.
+  
+  printf("a = %d\n", SvIV(perl_get_sv("a", FALSE)));
+
+  PerlEval("$a = $a+2.5;");
+
+  // ...        Extract a float perl value into the C code.
+  
+  printf("a = %f5.2\n", SvNV(perl_get_sv("a", FALSE)));
+
+  // ...        Play with strings.
+  
+  PerlEval("$a = 'rekcaH lreP rehtonA tsuJ';");
+  PerlEval("$a = reverse($a); ");
+
+  // ...        Extract a string perl value into the C code.
+
+  printf("a = %s\n", SvPV(perl_get_sv("a", FALSE), Length));
+
+  printf("%d\n", Length);
+  
+  // ...        Tidy up.
+
+  PerlEnd();
+}
+
+/********************************************************************/
+
+void PerlInit( char **env)
+{
+  char                 *Embedding[] = { "", "-e", "sub _eval_ { eval $_[0] }" };    
+
+  my_perl = perl_alloc();
+  perl_construct( my_perl );
+
+  perl_parse(my_perl, NULL, 3, Embedding, env);
+}
+
+/********************************************************************/
+
+int PerlEval(char *string)
+{
+  char *argv[2];
+  argv[0] = string;
+  argv[1] = NULL;
+  perl_call_argv("_eval_", 0, argv);
+}
+
+/********************************************************************/
+
+void PerlEnd(void)
+{
+    perl_destruct(my_perl);
+  perl_free(my_perl);
+}
-- 
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