C - 文章排版程式（單字處理）

word.h

	#ifndef WORD_H
	#define WORD_H
	/**********************************************************
	* Read_word: Reads the next word from the input and *
	* stores it in word. Makes word empty if no *
	* word could be read because of end-of-file. *
	* Truncates the word if its length exceeds *
	* len. *
	**********************************************************/
	void read_word(char *word, int len);
	#endif

view raw word.h hosted with ❤ by GitHub

word.c

	#include <stdio.h>
	#include <string.h>
	#include "word.h"
	int read_char(void) //抓取需要的字。
	{
	int ch = getchar();
	if (ch == '\n' || ch == '\t')
	return ' ';
	return ch;
	}
	void read_word(char *word, int len) //將文章的字存入word，沒字可讀時便存入\0。
	{
	int ch, pos = 0;
	while ((ch = read_char()) == ' ') //略過第一個字前的空格。
	;
	while (ch != ' ' && ch != EOF) {　//讀入字串
	word[pos++] = ch;
	ch = read_char();
	}
	word[pos] = '\0';
	if (pos >= len) { //若單字長度超過最大長度，則將超過最大長度的字元輸出至另一個檔。
	FILE *out;
	out = fopen("lost_words", "a+");
	pos = len - 1;
	do {
	fprintf(out, "%c", word[pos++]);
	} while (word[pos] != '\0');
	fprintf(out, "\n");
	word[len] = '\0';
	}
	}

view raw word.c hosted with ❤ by GitHub