Another example:
https://play.golang.org/p/hDKQtwHo6M
In this case, just copy the program to your machine and build it.
i called it lines.go
when i run it as:
lines < lines.go
it echos the program with the line "six" removed
On Sun, Apr 23, 2017 at 12:47 AM, Ishan Jain <ishanjai...@gmail.com> wrote:
> You can do it like this. I wrote the code to filter out lines from an
> array that does not contain words specified in array.
>
> package main
>>
>> import (
>> "os"
>> "log"
>> "bufio"
>> "io"
>> "regexp"
>> )
>>
>> var abcd = [5]string{
>> "one two",
>> "three four fix",
>> "six",
>> "seven eight nine ten",
>> "eleven twelve thirteen fourteen fifteen",
>> }
>>
>> func main() {
>>
>> inputFile, err := os.Open("file.txt")
>> if err != nil {
>> log.Fatalln(err)
>> }
>>
>> reader := bufio.NewReader(inputFile)
>>
>> for {
>> filedata, _, err := reader.ReadLine()
>> if err != nil {
>> if err != io.EOF {
>> log.Fatal(err)
>> }
>> return
>> }
>>
>> if stringsInSlice(string(filedata)) {
>>
>> // Write This Line to a file.
>>
>> }
>> }
>> }
>>
>> func stringsInSlice(str string) bool {
>> for _, v := range abcd {
>> // \b is used to create boundary, So, It won't match a word in a bigger word.
>> regex, err := regexp.Compile(`\b` + v + `\b`)
>> if err != nil {
>> log.Panic("Error In Compiling Regex")
>> }
>> if len(regex.FindAllString(str, 1)) != 0 {
>> return true
>> }
>> }
>> return false
>> }
>>
>>
> See this code in Action.
>
> https://play.golang.org/p/v-rzh-Wpui
>
> If there is something in my code that you did not understood, please let
> me know.
>
> Regards
>
> Ishan Jain
>
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--
Michael T. Jones
michael.jo...@gmail.com
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