compliehead.h

编译原理

#include "stdio.h"
#include "malloc.h"

typedef struct 
{
	int attribute;
	char* value;
}AttributeByte;

typedef enum
{
	KEYWORD,
	SYMBOL,
	OPERATION,
	CONST_NUM,
	CONST_STRING,
	CONST_CHAR,
	BOUNDARY,
	EMPTY
};

FILE* initFile(const char* fileName, char* openFileType)
{
	FILE* pScrFile;
	if((pScrFile = fopen(fileName, openFileType)) == NULL)
	{
		printf("Can't open file!");
	}
	return pScrFile;
}

void loadFromFileToBuffer(FILE* pScrFile, char* pBuffer, int bufferSize)
{
	char ch;
	int i;
	for(i=0; i<bufferSize; i++)
	{
		if(!feof(pScrFile))
		{
			ch = fgetc(pScrFile);
			*pBuffer = ch;
			pBuffer ++;
		}
	}
}

void putAttributeToFile(FILE* pDesFile, AttributeByte* pByte)
{
	char* ch;
	bool empty;
	empty = false;
	switch(pByte->attribute)
	{
	case KEYWORD:
		ch = "KEYWORD";
		break;
	case SYMBOL:
		ch = "SYMBOL";
		break;
	case OPERATION:
		ch = "OPERATION";
		break;
	case CONST_NUM:
		ch = "CONST_NUM";
		break;
	case BOUNDARY:
		ch = "BOUNDARY";
		break;
	case CONST_STRING:
		ch = "CONST_STRING";
		break;
	case CONST_CHAR:
		ch = "CONST_CHAR";
		break;
	case EMPTY:
		empty = true;
		break;
	}
	if(!empty)
	{
		while(*ch != '\0')
		{
			fputc(*ch, pDesFile);
			ch ++;
		}
		fputc(32, pDesFile);
		ch = pByte->value;
		while(*ch != '\0')
		{
			fputc(*ch, pDesFile);
			ch ++;
		}
		fputc('\n', pDesFile);
	}
}

void closeFile(FILE *pFile)
{
	fclose(pFile);
}

bool isLetter(char inputChar)
{
	if((inputChar >= 65 && inputChar <= 90) || (inputChar >= 97 && inputChar <= 122))
	{
		return true;
	}
	return false;
}

bool isNumber(char inputChar)
{
	if(inputChar >= 48 && inputChar <= 57) 
	{
		return true;
	}
	return false;
}

bool is16Number(char inputChar)
{
	if((inputChar >= 48 && inputChar <= 57 ) || (inputChar >= 65 && inputChar <= 70) || (inputChar >= 97 && inputChar <= 102))
	{
		return true;
	}
	return false;
}
//debug
void printBuffer(char *buffer, int bufferSize)
{
	int i;
	for(i=0; i<bufferSize; i++)
	{
		printf("%c", buffer[i]);
	}
	printf("\n");
}