正则表达式默认情况下实现的是最大化匹配,这在有些情况下是非常不愿意出现的,比如下面这段代码:
# starting IndiaInventoryAPP.exe" ~~DisplayVariableValues "parameterGroup,mailRecipients,ModuleArgs"~DisplayVariableValues "LogFolder"~$binaryExitCode = 0~~$IndiaInventoryArgs = "-asWin32Console -S HKDRMSUAT3 -D $DatabaseName -U $DatabaseUserName -P $DatabasePassword -L $LogFolder -MailRecipients $mailRecipients -T $today_yyyy -Z D:\cs48516\posIds.txt"~ExecuteBinaryCommand ([ref]$binaryExitCode) "$applicationPath/IndiaInventoryAPP.exe" $IndiaInventoryArgs $true~
我们想匹配#与~中间的任何文字,实现最小匹配的方法就是利用(?i)
下面是具体实现方法:
代码如下 | 复制代码 |
stringcommentGrammer =@"(?i)\#.*?~"; Regex commentRegex =newRegex(commentGrammer,RegexOptions.IgnoreCase|RegexOptions.Singleline); MatchCollection commentMC = commentRegex.Matches(input); foreach(Match matchincommentMC) { intlength = match.Length; intindex = match.Index; richTextBox.Select(index, length); richTextBox.SelectionColor = Color.Green; } |