214 lines
4.2 KiB
C++
214 lines
4.2 KiB
C++
/**********************************************************************/
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/** Microsoft LAN Manager **/
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/** Copyright(c) Microsoft Corp., 1987-1999 **/
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/**********************************************************************/
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/*
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lextable.cxx
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MIDL Compiler Lexeme Table Implementation
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This class centralizes access to allocated strings throughout the
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compiler.
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*/
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/*
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FILE HISTORY :
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DonnaLi 08-23-1990 Created.
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*/
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#pragma warning ( disable : 4514 )
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#include "nulldefs.h"
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extern "C" {
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#include <stdio.h>
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#include <malloc.h>
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#include <string.h>
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}
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#include "common.hxx"
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#include "lextable.hxx"
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/**********************************************************************\
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NAME: PrintLexeme
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SYNOPSIS: Prints out the name of a lexeme table entry.
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ENTRY: key - the key to lexeme table entry to be printed.
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EXIT:
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NOTES:
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HISTORY:
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Donnali 08-06-1991 Move to LM/90 UI Coding Style
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\**********************************************************************/
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void
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PrintLexeme(
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void * key
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)
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{
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printf ("%s", ((LexKey *)key)->sz);
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}
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/**********************************************************************\
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NAME: CompareLexeme
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SYNOPSIS: Compares keys to two lexeme table entries.
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ENTRY: key1 - the key to 1st lexeme table entry to be compared.
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key2 - the key to 2nd lexeme table entry to be compared.
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EXIT: Returns a positive number if key1 > key2.
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Returns a negative number if key1 < key2.
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Returns 0 if key1 = key2.
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NOTES:
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HISTORY:
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Donnali 08-06-1991 Move to LM/90 UI Coding Style
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\**********************************************************************/
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int
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CompareLexeme(
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void * key1,
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void * key2
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)
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{
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return(strcmp(((LexKey *)key1)->sz, ((LexKey *)key2)->sz));
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}
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/**********************************************************************\
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NAME: LexTable::LexTable
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SYNOPSIS: Constructor.
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ENTRY: Allocates memory according to Size.
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Passes the compare and print functions to base class.
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EXIT:
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NOTES:
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HISTORY:
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Donnali 08-06-1991 Move to LM/90 UI Coding Style
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\**********************************************************************/
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LexTable::LexTable(
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size_t Size,
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int (* )(void *, void *),
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void (* )(void *)
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)
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#ifdef unique_lextable
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: Dictionary(pfnCompare, pfnPrint)
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#endif // unique_lextable
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{
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BufferSize = Size;
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BufferNext = 0;
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pBuffer = new char[BufferSize];
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}
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/**********************************************************************\
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NAME: LexTable::LexInsert
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SYNOPSIS: Inserts a lexeme into the lexeme table.
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ENTRY: psz - the string to be inserted.
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EXIT: Returns the string.
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NOTES:
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HISTORY:
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Donnali 08-06-1991 Move to LM/90 UI Coding Style
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\**********************************************************************/
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char *
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LexTable::LexInsert(
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char * psz
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)
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{
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char * NewString;
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#ifdef unique_lextable
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LexKey * NewLexeme;
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Dict_Status Status;
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SearchKey.SetString(psz);
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Status = Dict_Find(&SearchKey);
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switch (Status)
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{
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case EMPTY_DICTIONARY:
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case ITEM_NOT_FOUND:
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#endif // unique_lextable
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if ((BufferSize - BufferNext) <= strlen(psz))
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{
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BufferSize *= 2;
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if ( BufferSize > 32700 )
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BufferSize = 32700;
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BufferNext = 0;
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pBuffer = new char[BufferSize];
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}
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NewString = (char *)(pBuffer + BufferNext);
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(void) strcpy(NewString, psz);
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BufferNext += strlen(psz) + 1;
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#ifdef unique_lextable
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NewLexeme = new LexKey (NewString);
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Status = Dict_Insert(NewLexeme);
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#endif // unique_lextable
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return NewString;
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#ifdef unique_lextable
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default:
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return ((LexKey *)Dict_Curr_Item())->GetString();
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}
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#endif // unique_lextable
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}
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/**********************************************************************\
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NAME: LexSearch
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SYNOPSIS: Searches the lexeme table for a lexeme.
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ENTRY: psz - the string to be searched.
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EXIT: Returns the string.
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NOTES:
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HISTORY:
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Donnali 08-06-1991 Move to LM/90 UI Coding Style
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\**********************************************************************/
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char *
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LexTable::LexSearch(
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char *
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)
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{
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#ifdef unique_lextable
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Dict_Status Status;
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SearchKey.SetString(psz);
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Status = Dict_Find(&SearchKey);
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if (Status == SUCCESS)
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return ((LexKey *)Dict_Curr_Item())->GetString();
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else
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#endif // unique_lextable
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return (char *)0;
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}
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