文字轉聲明: 編寫程序將特定格式的輸入轉換為C語言聲明

#include

#include

#include

#define MAXTOKEN 100

enum {NAME, PARENS, BRACKETS};

int tokentype;

char token[MAXTOKEN];

char name[MAXTOKEN];

char datatype[MAXTOKEN];

char out[1000];

int p_getch(void);

void p_ungetch(int);

int main(void)

{

int type, lasttype;

char temp[MAXTOKEN];

printf("Please input(ctrl+z to quit)n");

while (gettoken() != EOF)

{

strcpy(out, token);

lasttype = 0;

while ((type = gettoken()) != n)

{

if (type == NAME)

{

sprintf(temp, "%s %s", token, out);

strcpy(out, temp);

}

else

{

if (lasttype == *)

{

sprintf(temp, "(%s)", out);

strcpy(out, temp);

}

if (type == PARENS || type == BRACKETS)

strcat(out, token);

else if (type == *)

{

sprintf(temp, "*%s", out);

strcpy(out, temp);

}

else

printf("Error: Invalid input at %s!n", token);

}

lasttype = type;

}

printf("%sn",out);

}

return 0;

}

int gettoken(void)

{

int c;

char *p = token;

while ((c = p_getch()) == || c == t)

;

if (c == ()

{

if ((c = p_getch()) == ))

{

strcpy(token, "()");

return tokentype = PARENS;

}

else

{

p_ungetch(c);

return tokentype = (;

}

}

else if (c == [)

{

for (*p++ = c; (*p++ = p_getch()) != ];)

;

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