initial commit

1 files changed, 148 insertions, 0 deletions

diff --git a/util.c b/util.c
new file mode 100644
index 0000000..57c98c3
--- /dev/null
+++ b/util.c
@@ -0,0 +1,148 @@
+#include "Python.h"
+#include "util.h"
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+#include "api_scilab.h"
+
+const int sci_max_len = 1024 ;
+static const char* SCI_ETC_FILE = "/etc/sciscilab" ;
+
+
+/** Return the scilab type
+ *
+ * Returns the scilab type of the scilab variable name
+ *
+ * */
+int read_sci_type(char *name)
+{
+    char job[BUFSIZE] ;
+    int m, n ;
+    double type[1] ;
+
+    SciErr sciErr;
+
+    snprintf(job, BUFSIZE, "_tmp_value_ = type(%s);", name) ;
+    SendScilabJob(job) ;
+    sciErr = readNamedMatrixOfDouble(pvApiCtx, "_tmp_value_", &m, &n, NULL);
+    if (sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+    }
+
+    if (m*n != 1)
+    {
+        return -1 ;
+    }
+
+
+    sciErr = readNamedMatrixOfDouble(pvApiCtx, "_tmp_value_", &m, &n, &type[0]);
+    if (sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+    }
+
+    return (int) type[0] ;
+} ;
+
+/** Check if a matrix is real or not
+ *
+ *  Returns 1 if the matrix is real
+ *
+ */
+int is_real(char *name)
+{
+    return !isNamedVarComplex(pvApiCtx, name);
+}
+
+void sci_debug(const char *format, ...)
+{
+#if SCIDEBUG == 1
+    va_list argp ;
+    va_start(argp, format) ;
+    vprintf(format, argp) ;
+    va_end(argp) ;
+#endif
+}
+
+void sci_error(const char *format, ...)
+{
+    va_list argp ;
+    va_start(argp, format) ;
+    vprintf(format, argp) ;
+    va_end(argp) ;
+}
+
+/** Put a Python object in a list
+ */
+PyObject* create_list(PyObject *obj)
+{
+    PyObject* new_list ;
+
+    new_list = PyList_New(1) ;
+    PyList_SET_ITEM(new_list, 0, obj) ;
+    return new_list ;
+} ;
+
+/** Return the root directory of scilab
+
+Tries to open a file SCI_ETC_FILE and looks
+for a line SCI=where/is/scilab_root
+and return where/is/scilab_root
+
+sci must point to a big enough allocated space
+
+*/
+char *get_SCI(char *sci)
+{
+    FILE* fd = NULL ;
+    char var[sci_max_len] ;
+
+    *sci = '\0' ;
+
+    fd = fopen(SCI_ETC_FILE, "r") ;
+
+    if (!fd)
+    {
+        return sci;
+    }
+    else
+        while (!feof(fd))
+        {
+            char *str = fgets(var, sci_max_len, fd) ;
+            if (str == NULL)
+            {
+                goto finally ;
+            }
+
+            var[sci_max_len - 1] = '\0' ;
+            if (strncmp(var, "SCI", 3) == 0)
+            {
+                char *ptr ;
+                sci = &var[3] ;
+                while (*sci == ' ' || *sci == '=' )
+                {
+                    sci++ ;
+                }
+                ptr = sci ;
+                while (*ptr != '\0')
+                    if (*ptr == ' ' || *ptr == '\n')
+                    {
+                        *ptr = '\0' ;
+                    }
+                    else
+                    {
+                        ptr++ ;
+                    }
+
+                goto finally ;
+            }
+
+        }
+
+finally:
+    fclose(fd) ;
+    return sci ;
+}
+
+