From 93115ad750234a5cb28792675cdf24503283f6e7 Mon Sep 17 00:00:00 2001
From: sjplimp <sjplimp@f3b2605a-c512-4ea7-a41b-209d697bcdaa>
Date: Fri, 20 May 2011 15:44:23 +0000
Subject: [PATCH] git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@6154
 f3b2605a-c512-4ea7-a41b-209d697bcdaa

---
 src/force.cpp | 36 +++++++++++++++++++++++++++++-------
 src/force.h   |  4 ++--
 2 files changed, 31 insertions(+), 9 deletions(-)

diff --git a/src/force.cpp b/src/force.cpp
index 8068717be5..867101dac4 100644
--- a/src/force.cpp
+++ b/src/force.cpp
@@ -117,32 +117,54 @@ void Force::init()
    create a pair style, called from input script or restart file
 ------------------------------------------------------------------------- */
 
-void Force::create_pair(const char *style)
+void Force::create_pair(const char *style, char *suffix)
 {
   delete [] pair_style;
   if (pair) delete pair;
 
-  pair = new_pair(style);
+  pair = new_pair(style,suffix);
   int n = strlen(style) + 1;
   pair_style = new char[n];
   strcpy(pair_style,style);
 }
 
 /* ----------------------------------------------------------------------
-   generate a pair class
+   generate a pair class, first with suffix appended
 ------------------------------------------------------------------------- */
 
-Pair *Force::new_pair(const char *style)
+Pair *Force::new_pair(const char *style, char *suffix)
 {
-  if (strcmp(style,"none") == 0) return NULL;
+  int success = 0;
+
+  if (suffix) {
+    char estyle[256];
+    sprintf(estyle,"%s/%s",style,suffix);
+    success = 1;
+
+    if (0) return NULL;
 
 #define PAIR_CLASS
 #define PairStyle(key,Class) \
-  else if (strcmp(style,#key) == 0) return new Class(lmp);
+    else if (strcmp(estyle,#key) == 0) return new Class(lmp);
+#include "style_pair.h"
+#undef PairStyle
+#undef PAIR_CLASS
+
+    else success = 0;
+  }
+
+  if (!success) {
+    if (strcmp(style,"none") == 0) return NULL;
+
+#define PAIR_CLASS
+#define PairStyle(key,Class) \
+    else if (strcmp(style,#key) == 0) return new Class(lmp);
 #include "style_pair.h"
 #undef PAIR_CLASS
 
-  else error->all("Invalid pair style");
+    else error->all("Invalid pair style");
+  }
+
   return NULL;
 }
 
diff --git a/src/force.h b/src/force.h
index ee6343db98..d8b4a20136 100644
--- a/src/force.h
+++ b/src/force.h
@@ -64,8 +64,8 @@ class Force : protected Pointers {
   ~Force();
   void init();
 
-  void create_pair(const char *);
-  class Pair *new_pair(const char *);
+  void create_pair(const char *, char *suffix = NULL);
+  class Pair *new_pair(const char *, char *suffix = NULL);
   class Pair *pair_match(const char *, int);
 
   void create_bond(const char *);