pinyin.c

在ARM7和UC/OSII的平台上实现了GPS自动报站的功能,涉及GPS模块LEA_4S的驱动,位置速寻算法,语音芯片ISD4004的录放音驱动,LED页面管理等等.从启动代码到操作系统的移植以及到业

/*
******************************************************************
*                  XIAMEN YAXON NETWORK CO.LTD.  
*                   XINXI BUILDING,HULI,XIAMEN
*      (c) Copyright 2002,XIAMEN YAXON NETWORK CO.LTD. ,XIAMEN
*                     All Rights Reserved
*
* FileName     :  PINYIN.C
* Programmer(s):  YANGLEI
* Description  : 
******************************************************************

*****************************************************************
*                  REVISION HISTORY
*                 
* Date:    2003-03-12
*****************************************************************
*/ 
#define  CHINESE_GLOBALS
#include "includes.h"
#include "Pinyin.h"
#include "Flash.H"
#include "Fonts.h"
//#include "UARTDrv.h"

//static INT16U PinYinIndex[] = {0x00,0x05,0x015,0x037,0x4d,0x50,0x59,0x6c,0x7f,0x7f,0x8d,0x9f,0xb8,0xcb,0xe2,0xe4,0xf5,0x103,0x111,0x134,0x147,0x147,0x147,0x150,0x15e,0x16d,0x191};
static INT16U NumberIndex[] = {0x00,0x37,0x59,0x7f,0xb8,0xe4,0x134,0x147,0x191};
//将匹配汉字的首地址集合写入到matchedindex中，返回匹配的个数
static INT8U  temppy[30][6];
static INT16U P_Y_index_temp[100];
static INT8U SearchChineseByNumber(INT8U *number,INT8U numlen, INT8U *matchedindex)
{
     INT16U upindex,downindex,i;
     INT8U* pytblptr;//地址
     INT8U  totalmatch = 0;
     INT16U tempcnt = 0,pycnt=0;
     INT8U  tempmatch[40];
   	 
     if (*number < '2' || *number > '9') return INVALID_SEARCH;

     downindex = NumberIndex[*number - '2'];
     upindex = NumberIndex[*number - '2' + 1];
     memset(P_Y_index,NULL,sizeof(P_Y_index));
     memset(P_Y_index_temp,NULL,sizeof(P_Y_index_temp));
     memset(matchpy, 0x20, sizeof(matchpy));

     for (i=downindex;i<upindex;i++) {
        pytblptr = (INT8U*)(PY_GB_BASE + sizeof(PYTBL) * i);
        memcpy((INT8U*)&CurPyTbl,pytblptr,sizeof(PYTBL));// 将pytblptr指向的内容赋给CurPyTbl
        if (CurPyTbl.pylen > numlen + 1) continue;
           
        if (memcmp(number,CurPyTbl.key,numlen) == 0) {
           if (CurPyTbl.pylen == numlen) {//完全匹配的
      		     P_Y_index[pycnt] = i * sizeof(PYTBL);
      		     *matchedindex++ = CurPyTbl.chstartH;
		     *matchedindex++ = CurPyTbl.chstartL;
      		     memcpy(&matchpy[pycnt][0],CurPyTbl.py,numlen);
      		     memset(&matchpy[pycnt][numlen],0x20,6-numlen);
      		     pycnt++;
      	   } else {
      		     P_Y_index_temp[tempcnt] = i * sizeof(PYTBL);
      		     tempmatch[2*tempcnt] = CurPyTbl.chstartH;//多一个字母的匹配
		     tempmatch[2*tempcnt+1] = CurPyTbl.chstartL;
		     memcpy(&temppy[tempcnt][0], CurPyTbl.py, numlen+1);
		     memset(&temppy[tempcnt][numlen+1],0x20,5-numlen);
		     tempcnt++;
           }
		   totalmatch++;
        }
     }
     if (totalmatch == 0) totalmatch = INVALID_SEARCH;

     for(i = 0;i<tempcnt;i++) P_Y_index[pycnt+i] = P_Y_index_temp[i];//P_Y_index存放匹配的拼音表首地址
     memcpy(matchedindex, tempmatch, 2 * tempcnt);
     memcpy(matchpy[pycnt], temppy, 6 * tempcnt);//将非完全匹配的拼音加入到matchpy后
     return totalmatch;
}
//将index所指向的被选汉字复制到tbl中
void GetChineseMessage(INT16U index,CHINESETBL *tbl)
{
     INT8U *pytblptr;
     memset(tbl, NULL, sizeof(tbl));
     if (index >= MAX_SEARCH) return;
     pytblptr = (INT8U*)(PY_GB_BASE + index);
     memcpy((INT8U*)&CurPyTbl,pytblptr,sizeof(PYTBL));
     
     tbl->pylen = CurPyTbl.pylen;
     tbl->chlen = CurPyTbl.chlen / 2;
     memcpy(tbl->py,CurPyTbl.py,CurPyTbl.pylen);
     pytblptr = (INT8U*)(GBCODE_BASE + (((INT16U)(CurPyTbl.chstartH)<<8) & 0xff00) + CurPyTbl.chstartL);
     memcpy(tbl->chinese,pytblptr,CurPyTbl.chlen);
}    
//wordaddr表示字在字表中的偏移地址；phrasestartaddr表示这个字所组词的序列在词表的起始偏移地址
//注意：词表中存放的是词字在字表的偏移地址，而不是字的ASCII码
BOOLEAN SearchPhraseByWord(INT16U wordaddr, INT8U* phrasestartaddr, INT8U *PHRNum)
{
     INT8U *pytblptr, *phrasetblptr;
     INT16U TEMPA;
     PHRASETBL CurPhraseTbl;
     
     pytblptr = (INT8U*)(GBCODE_BASE + wordaddr);

     if(IsASCII(pytblptr)==TRUE) return FALSE;

     phrasetblptr = (INT8U*)(PHRASEINDEX_BASE + (wordaddr/2)*5);
     memcpy((INT8U*) &CurPhraseTbl, phrasetblptr, sizeof(PHRASETBL));

     if(((*pytblptr)==(*phrasetblptr))&&((*(pytblptr+1))==(*(phrasetblptr+1)))) {//字表中的字和词表索引中的符合
	  TEMPA = CurPhraseTbl.phrasestartH;
	  TEMPA = (TEMPA<<8)+CurPhraseTbl.phrasestartL;
	  memset(phrasestartaddr, 0x00, sizeof(phrasestartaddr));
          memcpy(phrasestartaddr, (INT8U*)(PHRASECODE_BASE+TEMPA), CurPhraseTbl.phraselen);
          *PHRNum = CurPhraseTbl.phraselen;
          return TRUE;
     }else{
          return FALSE;
     }
}	
//形参*Input表示目前selebox.asciichar，key表示新输入的数字键，返回匹配的所有字符的偏移地址
INT8U *HZQuery(INT8U *Input, INT8U key)
{
     INT8U  i,CurPos;
     
     for (i=0; i<6;i++) PYTemp[i] = Input[i];
     for (i=0; PYTemp[i]!=0; i++) ;//找出PYTEMP[]中最新一个为0的数组项
     PYTemp[i] = key;
     CurPos = i;
     MatchNum = SearchChineseByNumber(PYTemp, CurPos + 1, PYMatchAddr);
     if (MatchNum ==INVALID_SEARCH) {
          MatchNum = SearchChineseByNumber(Input, CurPos, PYMatchAddr);
     } else {//输入的key有效
          Input[CurPos] = key;
     }
     if(MatchNum==INVALID_SEARCH) return NULL;
     return PYMatchAddr;
}