fmt.awk

来自「awk scripts awk scripts awk scripts awk 」· AWK 代码 · 共 23 行

# fmt - format
#    input:  text
#    output: text formatted into lines of <= 60 characters

# AKW p120

/./  { for (i = 1; i <= NF; i++) addword($i) }
/^$/ { printline(); print "" }
END  { printline() }

function addword(w) {
    if (length(line) + length(w) > 30)
        printline()
    line = line " " w
}

function printline() {
    if (length(line) > 0) {
        print substr(line, 2)
        line = ""
    }
}