问题
The command wc provides lineCount, wordCount, and charCount. I am writing a program that simulates the wc command as it takes a file and spits out the 3 properties. Line count is easy because if it sees \n it will ++lineCount and if a char exists and it's not EOF, it will ++charCount. But what does word mean? What separates words, whitespace?
回答1:
This is specified by POSIX:
The wc utility shall consider a word to be a non-zero-length string of characters delimited by white space.
The man page for wc on my system (Ubuntu 17.04) is similar:
A word is a non-zero-length sequence of characters delimited by white space.
来源：https://stackoverflow.com/questions/48816403/regarding-the-unix-command-wc-what-is-considered-as-a-word