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回复 楼主 shilaike 的帖子
标准Unicode库的汉字解析函数：
/*
*从nandflash中读取字库数据 :576为一个字符的数据量;返回点阵开始的位置
*/
u32 getWordDataFromNandFlash(u8 *tmpbuffer, u8 * ptr, fonts fontType)
{
u32 retNum = 0;
u32 code1 = *ptr, code2 = 0; /* code1放的是区码，而code2放的是位码 */
NAND_ADDRESS WriteReadAddrTmp1;
switch (fontType) {
case font_12:
if (code1 < 0x80) {
WriteReadAddrTmp1.Zone = 0;
WriteReadAddrTmp1.Block = ASC12_STORE_START_BLOCK;
WriteReadAddrTmp1.Page = 0;
retNum = (code1-32) * 12;
} else {
WriteReadAddrTmp1.Zone = 0;
WriteReadAddrTmp1.Block = HZK12_STORE_START_BLOCK;
WriteReadAddrTmp1.Page = 0;
code2 = *(ptr + 1); /* 获取汉字位码 */
retNum = ((code1-0xa1) * 94 + (code2-0xa1)) * 24;
}
break;
case font_16: //8*16ASCII码/16*16汉字
if (code1 < 0x80) {
if(code1 == '^')
{ //上标显示
code1 = *(ptr + 1);
WriteReadAddrTmp1.Zone = 0;
WriteReadAddrTmp1.Block = ASC12_STORE_START_BLOCK;
WriteReadAddrTmp1.Page = 0;
retNum = (code1-32) * 12;
break;
}else if(code1 == '~')
{
code1 = *(ptr + 1);
{
WriteReadAddrTmp1.Zone = 0;
WriteReadAddrTmp1.Block = ASC12_STORE_START_BLOCK;
WriteReadAddrTmp1.Page = 0;
retNum = (code1-32) * 12;
}
break;
}
} else {
code2 = *(ptr + 1);
WriteReadAddrTmp1.Zone = 0;
WriteReadAddrTmp1.Block = ZHK16_STORE_START_BLOCK;
WriteReadAddrTmp1.Page = 0;
retNum = ((code1-0xa1) * 94 + (code2-0xa1)) * 32;
}
break;
case font_24: //16*24ASCII码/24*24汉字
if (code1 < 0x80) {
} else {
code2 = *(ptr + 1);
WriteReadAddrTmp1.Zone = 0;
WriteReadAddrTmp1.Block = ZHK24_STORE_START_BLOCK;
WriteReadAddrTmp1.Page = 0;
retNum = ((code1-0xb0) * 94 + (code2-0xa1)) * 72;
}
break;
case font_48: //24*48ASCII码
if (code1 < 0x80) {
WriteReadAddrTmp1.Zone = 0;
WriteReadAddrTmp1.Block = ASC48_STORE_START_BLOCK;
WriteReadAddrTmp1.Page = 0;
retNum = (code1-32) * 144;
}
break;
/*case font_96:
{
WriteReadAddrTmp1.Zone = 0;
WriteReadAddrTmp1.Block = _4896_STORE_START_BLOCK;
WriteReadAddrTmp1.Page = 0;
if(code1 == '+')
{
retNum = 0;
}
else if(code1 == '-')
{
retNum = 576;
}
else if(code1 >= '0' && code1 <= '9')
{
retNum = (code1 - '0' + 2) * 576 ;
}
else if(code1 == '.')
{
retNum = 12 * 576;
}else if(code1 >= 'A' && code1 <= 'Z')
{
retNum = (code1 - 'A' + 13) * 576;
}
}*/
default :
break;
}
WriteReadAddrTmp1.Page = retNum/NAND_PAGE_SIZE;
{
u16 tmpBlock = WriteReadAddrTmp1.Page / NAND_BLOCK_SIZE,i = 0;
for(;i <= tmpBlock; i++) {
if(checkNandFlashBlockState(WriteReadAddrTmp1))
tmpBlock ++;
WriteReadAddrTmp1.Block ++;
}
WriteReadAddrTmp1.Block --;
}
WriteReadAddrTmp1.Page %= NAND_BLOCK_SIZE;
retNum %= NAND_PAGE_SIZE;
FSMC_NAND_ReadSmallPage(tmpbuffer,WriteReadAddrTmp1,2);
return retNum;
}
与现在主流的方法一样，利用查表结构实现拼音输入法：（以部分汉字为例，我将全部的一级汉字加到工程里面了，坛友有需要可以联系）
1.拼音结构的实现
结构体的实现：
typedef struct {
unsigned char str[5];
unsigned char bit_code;
unsigned char zone_code;
}PY_index;
typedef PY_index *pointer;
然后看所有一级汉字拼音的指针数组结构：
pointer PY_index_pointer[]={
PY_index_a, PY_index_b,PY_index_c,PY_index_d,PY_index_e,PY_index_f,PY_index_g,PY_index_h,
PY_index_j,PY_index_j,PY_index_k,PY_index_l,PY_index_m,PY_index_n,PY_index_o,PY_index_p,
PY_index_q,PY_index_r,PY_index_s,PY_index_t,PY_index_w,PY_index_w,PY_index_w,PY_index_x,
PY_index_y,PY_index_z,PY_index_end
};
/* 拼音输入法查询码表 ，只给出以a和b开关的拼音表 */
_index PY_index_a[] = {
{"", 0x00, 0x00},
{"i ", 0x08, 0x00},
{"n ", 0x24, 0x00},
{"ng ", 0x33, 0x00},
{"o ", 0x3a, 0x00},
};
PY_index PY_index_b[]={
{"a ",0x4D,0x00},
{"ai ",0x70,0x00},
{"an ",0x81,0x00},
{"ang",0xA0,0x00},
{"ao ",0xB9,0x00},
{"ei ",0xDE,0x00},
{"en ",0xFD,0x00},
{"eng",0x08,0x01},
{"i ",0x15,0x01},
{"ian",0x44,0x01},
{"iao",0x5D,0x01},
{"ie ",0x66,0x01},
{"in ",0x6F,0x01},
{"ing",0x7C,0x01},
{"o ",0x8F,0x01},
{"u ",0xB8,0x01},
};
汉字码表的建立：
//"拼音输入法汉字排列表，只给出a和开头的汉字一级表
unsigned char PY_mb_a []={"阿啊"};
unsigned char PY_mb_ai []={"哎哀唉埃挨皑癌矮蔼艾爱隘碍"};
unsigned char PY_mb_an []={"安氨鞍俺岸按案胺暗"};
unsigned char PY_mb_ang []={"肮昂盎"};
unsigned char PY_mb_ao []={"凹敖熬翱袄傲奥澳懊"};
unsigned char PY_mb_ba []={"八巴叭扒吧芭疤捌笆拔跋把靶坝爸罢霸"};
unsigned char PY_mb_bai []={"白百佰柏摆败拜稗"};
unsigned char PY_mb_ban []={"扳班般颁斑搬板版办半伴扮拌绊瓣"};
unsigned char PY_mb_bang []={"邦帮梆绑榜膀蚌傍棒谤磅镑"};
unsigned char PY_mb_bao []={"包苞胞褒雹宝饱保堡报抱豹鲍暴爆剥薄瀑"};
unsigned char PY_mb_bei []={"卑杯悲碑北贝狈备背钡倍被惫焙辈"};
unsigned char PY_mb_ben []={"奔本苯笨夯"};
unsigned char PY_mb_beng []={"崩绷甭泵迸蹦"};
unsigned char PY_mb_bi []={"逼鼻比彼笔鄙币必毕闭庇毖陛毙敝痹蓖弊碧蔽壁避臂"};
unsigned char PY_mb_bian []={"边编鞭贬扁卞便变遍辨辩辫"};
unsigned char PY_mb_biao []={"彪标膘表"};
unsigned char PY_mb_bie []={"憋鳖别瘪"};
unsigned char PY_mb_bin []={"宾彬斌滨濒摈"};
unsigned char PY_mb_bing []={"冰兵丙秉柄炳饼并病"};
unsigned char PY_mb_bo []={"拨波玻钵脖菠播伯驳帛泊勃铂舶博渤搏箔膊卜"};
unsigned char PY_mb_bu []={"补哺捕不布步怖部埠簿"};
拼音解析函数：
//"拼音输入法杳询函数，input_py为已输入的拼音码，反回值为中文的起始地址，当为0时，杳询失败"
unsigned char code * py_ime(unsigned char input_py_val[]);
//"========================================主程序体========================================"
unsigned char code * py_ime(unsigned char input_py_val[])
{
unsigned char code (* xdata p1)[8],(* xdata p2)[8],(* xdata p3)[8];
unsigned char xdata i=1;
if (input_py_val[0]==0) return(0); //"如果输入空字符返回0"
if (input_py_val[0]=='i') return(0);
if (input_py_val[0]=='u') return(0);
if (input_py_val[0]=='v') return(0);
p1=p2=PY_index_pointer[input_py_val[0]-0x61]; //"计算入口树根"
p3=PY_index_pointer[input_py_val[0]-0x60]; //"设置指针界限"
if (p1==0) return(0); //"查询失败返回0"
while (p1
p1=p2;
while (p1
if (((*p1)==input_py_val[i+1])&&((*p1)[i-1]==input_py_val))
{
p2=p1;
i++;
}
else p1++;
return((unsigned char code *)((*p2)[6]+(*p2)[7]*256+py_mb_begin)); //"返回查询结果首地址"
}
测试函数：上位机测试（注意：window下的字符串实际占用的空间数与理论上的占用数是有差距的，请结合实际查看）
int main(void)
{
unsigned char pinyin[] = {"an"};
unsigned char pinyin1[]={"ai"};
unsigned char chinese_string[100]={0};
unsigned char chinese_string1[100]={0};
sprintf(chinese_string, "%s", py_ime(pinyin));
sprintf(chinese_string1, "%s", py_ime(pinyin1));
printf("%s\n", chinese_string);
return 0;
}
显示结果请看图： |
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