oldXMenu/FindPane.c

   1 #include "copyright.h"
   2
   3 /* $Header: /u/src/emacs/19.0/oldXMenu/RCS/FindPane.c,v 1.1 1992/04/11 22:10:19 jimb Exp $ */
   4 /* Copyright    Massachusetts Institute of Technology    1985   */
   5
   6 /*
   7  * XMenu:       MIT Project Athena, X Window system menu package
   8  *
   9  *      XMenuFindPane - Find the first menu pane who's label matches a
  10  *                      particular string.
  11  *
  12  *      Author:         Tony Della Fera, DEC
  13  *                      January 22, 1986
  14  *
  15  */
  16
  17 #include "XMenuInt.h"
  18
  19 int
  20 XMenuFindPane(menu, label)
  21     register XMenu *menu;
  22     register char *label;
  23 {
  24     register XMPane *p_ptr;
  25     register int i = 0;
  26
  27     /*
  28      * Check for NULL pointers!
  29      */
  30     if (label == NULL) {
  31         _XMErrorCode = XME_ARG_BOUNDS;
  32         return(XM_FAILURE);
  33     }
  34
  35     /*
  36      * Find the pane who's label matches the given label.
  37      */
  38     for (
  39         p_ptr = menu->p_list->next;
  40         p_ptr != menu->p_list;
  41         p_ptr = p_ptr->next
  42     ){
  43         if (p_ptr->label_length == 0) {
  44             if (*label == '\0') {
  45                 _XMErrorCode = XME_NO_ERROR;
  46                 return (i);
  47             }
  48         }
  49         else {
  50             if (strncmp (label, p_ptr->label, p_ptr->label_length) == 0) {
  51                 _XMErrorCode = XME_NO_ERROR;
  52                 return (i);
  53             }
  54         }
  55         i++;
  56     }
  57
  58     /*
  59      * If we get here then we have not found
  60      * a match.
  61      */
  62     _XMErrorCode = XME_P_NOT_FOUND;
  63     return (XM_FAILURE);
  64 }