149 lines
3.2 KiB
C++
149 lines
3.2 KiB
C++
//+--------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1992.
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//
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// File: strlist.cxx
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//
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// Contents: CStrList implementation
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//
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// History: 24-Sep-92 DrewB Created
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//
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//---------------------------------------------------------------
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#include "headers.cxx"
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#pragma hdrstop
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#include <string.h>
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//+--------------------------------------------------------------
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//
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// Member: CStrList::CStrList, public
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//
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// Synopsis: Ctor
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//
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// History: 24-Sep-92 DrewB Created
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//
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//---------------------------------------------------------------
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CStrList::CStrList(void)
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{
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_pseHead = NULL;
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}
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//+--------------------------------------------------------------
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//
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// Member: CStrList::~CStrList, public
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//
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// Synopsis: Dtor
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//
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// History: 24-Sep-92 DrewB Created
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//
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//---------------------------------------------------------------
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CStrList::~CStrList(void)
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{
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Empty();
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}
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//+--------------------------------------------------------------
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//
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// Member: CStrList::Add, public
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//
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// Synopsis: Adds a string to the list
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//
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// Arguments: [ptcs] - String
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//
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// Returns: Pointer to entry or NULL
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//
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// History: 24-Sep-92 DrewB Created
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//
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//---------------------------------------------------------------
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SStrEntry *CStrList::Add(OLECHAR *ptcs)
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{
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SStrEntry *pse;
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// One char of string already counted in sizeof
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pse = (SStrEntry *)new
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char[sizeof(SStrEntry)+olecslen(ptcs)*sizeof(OLECHAR)];
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if (pse == NULL)
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return NULL;
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pse->pseNext = _pseHead;
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pse->psePrev = NULL;
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if (_pseHead)
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_pseHead->psePrev = pse;
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_pseHead = pse;
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olecscpy(pse->atc, ptcs);
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return pse;
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}
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//+--------------------------------------------------------------
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//
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// Member: CStrList::Remove, public
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//
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// Synopsis: Removes an entry from the list
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//
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// Arguments: [pse] - Entry
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//
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// History: 24-Sep-92 DrewB Created
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//
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//---------------------------------------------------------------
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void CStrList::Remove(SStrEntry *pse)
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{
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if (pse->psePrev)
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pse->psePrev->pseNext = pse->pseNext;
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else
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_pseHead = pse->pseNext;
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if (pse->pseNext)
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pse->pseNext->psePrev = pse->psePrev;
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delete pse;
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}
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//+--------------------------------------------------------------
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//
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// Member: CStrList::Find, public
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//
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// Synopsis: Attempts to find a string in the list
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//
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// Arguments: [ptcs] - String
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//
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// Returns: Entry or NULL
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//
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// History: 24-Sep-92 DrewB Created
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//
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//---------------------------------------------------------------
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SStrEntry *CStrList::Find(OLECHAR *ptcs)
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{
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SStrEntry *pse;
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for (pse = _pseHead; pse; pse = pse->pseNext)
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if (!olecscmp(ptcs, pse->atc))
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return pse;
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return NULL;
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}
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//+--------------------------------------------------------------
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//
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// Member: CStrList::Empty, public
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//
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// Synopsis: Frees all elements in list
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//
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// History: 24-Sep-92 DrewB Created
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//
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//---------------------------------------------------------------
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void CStrList::Empty(void)
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{
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SStrEntry *pse;
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while (_pseHead)
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{
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pse = _pseHead->pseNext;
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delete _pseHead;
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_pseHead = pse;
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}
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}
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