Read and write demand categories names

Fixes #290

src/inpfile.c

@@ -333,7 +333,7 @@ int saveinpfile(EN_Project *pr, const char *fname)
         sprintf(s1, "   %s", net->Pattern[j].ID);
       else
         strcpy(s1, "");
-      fprintf(f, "\n%s %s", s, s1);
+      fprintf(f, "\n%s %s ;%s", s, s1, demand->Name);
     }
   }
 

src/input3.c

@@ -111,6 +111,7 @@ int juncdata(EN_Project *pr)
   }
   demand->Base = y;
   demand->Pat = p;
+  strncpy(demand->Name, "", MAXMSG);
   demand->next = NULL;
   node->D = demand;
   hyd->NodeDemand[Njuncs] = y;
@@ -775,6 +776,7 @@ int demanddata(EN_Project *pr)
     // with what is specified in this section
     demand->Base = y;
     demand->Pat = p;
+    strncpy(demand->Name, par->Comment, MAXMSG);
     hyd->NodeDemand[j] = MISSING; // marker - next iteration will append a new category.
   }
   else { // add new demand to junction
@@ -787,6 +789,7 @@ int demanddata(EN_Project *pr)
       return (101);
     demand->Base = y;
     demand->Pat = p;
+    strncpy(demand->Name, par->Comment, MAXMSG);
     demand->next = NULL;
     cur_demand->next = demand;
   }

src/types.h

@@ -361,6 +361,7 @@ struct Sdemand            /* DEMAND CATEGORY OBJECT */
 {
    double Base;            /* Baseline demand      */
    int    Pat;             /* Pattern index        */
+   char Name[MAXMSG+1];    /* Demand category name */
    struct Sdemand *next;   /* Next record          */
 };
 typedef struct Sdemand *Pdemand; /* Pointer to demand object */