Re: [go-nuts] weird thing happened to string concatenation on win7 OS

[Tad Glines]

reader.ReadString('\n') is splitting the input on '\n', but on Windows the line delimiter is "\r\n" so the "\r|" remains at the end of the line returned by ReadString('\n'). You need to either switch to using ReadLine() or check for and trim off the "\r" at the end of the line.

On Thu, May 16, 2013 at 4:08 PM, 卢红 <cma...@gmail.com> wrote:

package main

import (

"fmt"

"bufio"

"io"

"os"

"regexp"

)

func main() {

configFile, configErr := os.Open(".\\config.ini")

properties := make(map[string]string)

reader := bufio.NewReader(configFile)

matcher, _ := regexp.Compile("(^\\w+)(\\s*=\\s*)(.*)")

var content string

var err error

for {

content, err = reader.ReadString('\n')

kv := matcher.FindAllStringSubmatch(content, 1)

if len(kv) > 0 {

properties[kv[0][1]] = kv[0][3]

}

if io.EOF == err {

break

}

}

if nil != configErr {

fmt.Println("Failed to configure program -> ", configErr)

fmt.Scanln()

return

}

localMp3Path := properties["saveLocation"]

fmt.Println(localMp3Path + "hello worlddddddddddddddddddddddddddd")

}

the content of config.ini

saveLocation=c:\golang\workspace\helloworld\test\src\

baseUrl=http://test.com/eng/ez/morning

the expected result:

c:\golang\workspace\helloworld\test\src\hello worlddddddddddddddddddddddddddd

but the actual output result:

hello worlddddddddddhelloworld\test\src\

what's happened to the string from regexp function...

Thanks

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[卢红]

thanks very much. change to ReadLine(). the problem is solved.

[dlin]

After Go1.1, use this to read line

http://golang.org/pkg/bufio/#example_Scanner_lines