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using Regular Expressions to Look References in Source Insight :想查找的内容为：
1.包含break
2.break后有一个空格，即不查找"break;
3.空格接下来是字母而不是分号（；），即不查找"break ;"
可在查找框中输入如下正则表达式：
break\s[a-z]
查找结果如下：
RcapiDevScriptDevice.java (java\nvprormapi): break loop;
RcapiFtpListener.java (java\nvprormapi): break thread_loop;
RcapiFtpMonitor.java (java\nvprormapi): break thread_loop;
RcapiFtpMonitor.java (java\nvprormapi): break monitoring_loop;
RcapiFtpMonitor.java (java\nvprormapi): break thread_loop;
RcapiFtpMonitor.java (java\nvprormapi): break monitoring_loop;
RcapiTftpListener.java (java\nvprormapi): break thread_loop;
RcapiTftpMonitor.java (java\nvprormapi): break thread_loop;
RcapiTftpMonitor.java (java\nvprormapi): break monitoring_loop;
RcapiTftpMonitor.java (java\nvprormapi): break thread_loop;
RcapiTftpMonitor.java (java\nvprormapi): break monitoring_loop;
附： Regular Expressions in http://www.sourceinsight.com/docs35/af1070763.htm：
Matching a Tab or Space
\t
\s
\w
\t matches a single tab character.
Example: \tint abc; matches a tab character followed by int abc;.
\s matches a single space character.
Example: \sif matches a space character followed by if.
\w matches a single white space character. In other words, \w matches either a tab or space character.
Example: \wwhile matches either a tab or space character, followed by while.
Matching Any in a Set of Characters
[ .. ]
When a list of characters are enclosed in square braces [..] then any character in that set will be matched.
Example: [abc] matches a, b, and c, but not d.
When a caret ^ appears at the beginning of the set, the match succeeds only if the character is not in the set.
Example: [^abc] matches d, e, or f, but not a, b, or c.
Sets can conveniently be described with a range. A range is specified by two characters separated by a dash, such as [a-z]. The beginning character must have a lower ASCII value than the ending character.
Example: [a-z] matches any character in the range a through z, but not A or 1 or 2.
Sets can contain multiple ranges.
Example 1: [a-zA-Z] matches any alphabetic character.
Example 2: [^a-zA-Z0-9] matches any non-alphanumeric character.
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