R正则表达式多行并搜索

Question

＆＃34; R＆＃34;语言能够跨越＆＃34;换行符执行正则表达式检查\ n \ r＆＃34; 考虑以下模式：我们需要找到给定的＆＃34; Sage得分＆＃34;什么是＆＃34;最终得分＆＃34;

下面的示例文字

"access - SAFPS Members only\n Sample PreScore\n The Sage score is a generic scorecard which indicates the\n associated with a consumer by taking into consideration the\n or default.\n Identifier    Date     Final Score  Exception\n 4738998    2015-08-31  600 Debt Summary \n This section displays a summary of all the consumer's current debt obligations" 

我的代码如下

# Read text file, get line position of \n 
con=file("C:\\Sample.txt",open="r") 
lines=readLines(con) # line position of sage score 
index <- grep("Sage score",lines,value=FALSE,ignore.case=TRUE)
valueLine <- lines[index+2]
value line returns tokenize for 3rd token. 
4738998  2015-08-31  600 

问题是没有读取整个文件我们是否有跨行的R正则表达式？