Added the pj_get_def() function

git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@1017 4e78687f-474d-0410-85f9-8d5e500ac6b2

1 files changed, 40 insertions, 0 deletions

diff --git a/src/pj_pr_list.c b/src/pj_pr_list.c
index e4feeda6..f7a62344 100644
--- a/src/pj_pr_list.c
+++ b/src/pj_pr_list.c
@@ -46,3 +46,43 @@ pj_pr_list(PJ *P) {
 		(void)pr_list(P, 1);
 	}
 }
+
+/************************************************************************/
+/*                             pj_get_def()                             */
+/*                                                                      */
+/*      Returns the PROJ.4 command string that would produce this       */
+/*      definition expanded as much as possible.  For instance,         */
+/*      +init= calls and +datum= defintions would be expanded.          */
+/************************************************************************/
+
+char *pj_get_def( PJ *P, int options )
+
+{
+    paralist *t;
+    int l;
+    char *definition;
+    int  def_max = 10;
+
+    definition = (char *) pj_malloc(def_max);
+    definition[0] = '\0';
+
+    for (t = P->params; t; t = t->next)
+    {
+        l = strlen(t->param) + 1;
+        if( strlen(definition) + l + 5 > def_max )
+        {
+            char *def2;
+
+            def_max = def_max * 2 + l + 5;
+            def2 = (char *) pj_malloc(def_max);
+            strcpy( def2, definition );
+            pj_dalloc( definition );
+            definition = def2;
+        }
+
+        strcat( definition, " +" );
+        strcat( definition, t->param );
+    }
+
+    return definition;
+}