oldXMenu/FindSel.c

   1 #include "copyright.h"
   2
   3 /* $Header: /u/src/emacs/19.0/oldXMenu/RCS/FindSel.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  *      XMenuFindSelection - Find the first selection in a pane who's
  10  *                           label matches a particular string.
  11  *
  12  *      Author:         Tony Della Fera, DEC
  13  *                      January 22, 1986
  14  *
  15  */
  16
  17 #include "XMenuInt.h"
  18
  19 int
  20 XMenuFindSelection(menu, p_num, label)
  21     register XMenu *menu;
  22     int p_num;
  23     register char *label;
  24 {
  25     register XMPane *p_ptr;
  26     register XMSelect *s_ptr;
  27     register int i = 0;
  28
  29     /*
  30      * Check for NULL pointers!
  31      */
  32     if (label == NULL) {
  33         _XMErrorCode = XME_ARG_BOUNDS;
  34         return(XM_FAILURE);
  35     }
  36
  37     /*
  38      * Find the right pane.
  39      */
  40     p_ptr = _XMGetPanePtr(menu, p_num);
  41     if (p_ptr == NULL) return(XM_FAILURE);
  42
  43     /*
  44      * Find the right selection.
  45      */
  46     for (
  47         s_ptr = p_ptr->s_list->next;
  48         s_ptr != p_ptr->s_list;
  49         s_ptr = s_ptr->next
  50     ){
  51         if (s_ptr->label_length == 0) {
  52             if (*label == '\0') {
  53                 _XMErrorCode = XME_NO_ERROR;
  54                 return (i);
  55             }
  56         }
  57         else {
  58             if (strncmp (label, s_ptr->label, s_ptr->label_length) == 0) {
  59                 _XMErrorCode = XME_NO_ERROR;
  60                 return (i);
  61             }
  62         }
  63         i++;
  64     }
  65
  66     /*
  67      * If we get here then we have not found
  68      * a match.
  69      */
  70     _XMErrorCode = XME_S_NOT_FOUND;
  71     return (XM_FAILURE);
  72 }