#!/bin/bash

#program:

#       分析.c,.cpp文件,计算文件行总数，代码行总数，注释行总数，空白行总数，代码注释率

#       注释类型：

#       (1)行注释"//这里是注释内容"

#       (2)块注释"/*这里是注释内容*/"

#History:

#2013/12/16 Fgx First release

PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin

export PATH

#fileName="/home/fgx/hello_new.c"

echo "-----------------------">> result.txt

date >>result.txt

echo "统计的文件名:">>result.txt

echo "$fileName" >>result.txt

echo >>result.txt

echo "----===统计结果===----">>result.txt

declare -i fileLine=`cat $fileName | wc -l`

echo  "文件行总数："$fileLine"" >>result.txt

declare -i codeLine=`cat $fileName | grep -v '^[[:space:]]*$'|grep -v '^[[:space:]]*\/\/' |sed '/\/\*/,/\*\//d' | wc -l`

echo  "代码行总数："$codeLine"" >>result.txt

declare -i noNoteLine=`cat $fileName |  sed '/\/\*/,/\*\//d' | sed '/\/\//d'|wc -l`

declare -i noteLine=0

((noteLine=fileLine-noNoteLine))

echo  "注释行总数："$noteLine"" >>result.txt

declare -i blankLine=`cat $fileName | grep '^[[:space:]]*$' |wc -l`

echo  "空白行总数："$blankLine"" >>result.txt

declare -i line=0

((line=noteLine+codeLine))

echo -n  "代码注释率:" >>result.txt

awk 'BEGIN{printf "%.2f%\n",('$noteLine'/'$line')*100}' >>result.txt

echo "----==============----" >>result.txt