✎ resarch:nlpa:xpath_tools_on_srcml [Pollock Lab: Private Research Space]

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\\ ** Convert source code(Java,C++,C code) to srcML(XML format)**
\\ ./src2srcml <input_filename.java> -o <output_filename.xml>
\\ **
\\ Extract method calls in order as in an srcml file. 
\\ Retains the full path of the method call**
\\ Preethas-MacBook-Pro:srcML preethac$ ./srcml2src --xpath="//src:call/src:name" SplashActivity.xml"

\\ <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
\\ <unit xmlns="http://www.sdml.info/srcML/src">

\\ <unit language="Java" filename="SplashActivity.java" item="1"><name><name>super</name>.<name>onCreate</name></name></unit>

\\ <unit language="Java" filename="SplashActivity.java" item="2"><name>setContentView</name></unit>

\\ <unit language="Java" filename="SplashActivity.java" item="3"><name><name>super</name>.<name>onResume</name></name></unit>

\\ <unit language="Java" filename="SplashActivity.java" item="4"><name>Handler</name></unit>

\\ <unit language="Java" filename="SplashActivity.java" item="5"><name>postDelayed</name></unit>

\\ <unit language="Java" filename="SplashActivity.java" item="6"><name><name>SplashActivity</name>.<name>this</name>.<name>finish</name>\</name></unit>

\\ <unit language="Java" filename="SplashActivity.java" item="7"><name>Intent</name></unit>

\\ <unit language="Java" filename="SplashActivity.java" item="8"><name><name>SplashActivity</name>.<name>this</name>.<name>startActivity</name></name></unit>

\\ <unit language="Java" filename="SplashActivity.java" item="9"><name>finish</name></unit>

\\ <unit language="Java" filename="SplashActivity.java" item="10"><name>Intent</name></unit>

\\ <unit language="Java" filename="SplashActivity.java" item="11"><name><name>SplashActivity</name>.<name>this</name>.<name>startActivity</name></name></unit>

\\ </unit>

**\\ Extract method calls in order from a specific class**
\\ Preethas-MacBook-Pro:srcML preethac$ ./srcml2src --xpath="//src:class[src:name='<class_name>']//src:call" <filename.xml> 

**\\ Storing the output in a file**
\\ <xpath-expression> > <outputfile_name>
**
\\ \\ Counting number of blocks/functions:**
\\ wifi-roaming-128-4-153-85:srcML preethac$ ./srcml2src --xpath="count(//src:block)" SplashActivity.xml

7
\\ wifi-roaming-128-4-153-85:srcML preethac$ ./srcml2src --xpath="count(//src:function)" SplashActivity.xml

\\ 3

**\\ Counting the number of calls with arguments**
\\ 'Preethas-MacBook-Pro:srcML preethac$ ./srcml2src --xpath="//src:block//src:call" SplashActivity.xml' 
\\ 
\\ 
\\ <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
\\ <unit xmlns="http://www.sdml.info/srcML/src">

\\ <unit language="Java" filename="SplashActivity.java" item="1"><call><name><name>super</name>.<name>onCreate</name></name><argument_list>(<argument><expr><name>savedInstanceState</name></expr></argument>)</argument_list></call></unit>

\\ <unit language="Java" filename="SplashActivity.java" item="2"><call><name>setContentView</name><argument_list>(<argument><expr><name><name>R</name>.<name>layout</name>.<name>splash</name></name></expr></argument>)</argument_list></call></unit>

\\ <unit language="Java" filename="SplashActivity.java" item="3"><call><name><name>super</name>.<name>onResume</name></name><argument_list>()</argument_list></call></unit>

\\ <unit language="Java" filename="SplashActivity.java" item="4"><call><name>Handler</name><argument_list>()</argument_list></call></unit>

\\ <unit language="Java" filename="SplashActivity.java" item="5"><call><name>postDelayed</name><argument_list>(<argument><expr>new <class><super><name>Runnable</name></super><argument_list>()</argument_list> <block>{
                <function><type><specifier>public</specifier> <name>void</name></type> <name>run</name><parameter_list>()</parameter_list> <block>{
                    <comment type="line">//Finish the splash activity so it can't be returned to.</comment>
                    <expr_stmt><expr><call><name><name>SplashActivity</name>.<name>this</name>.<name>finish</name></name><argument_list>()</argument_list></call></expr>;</expr_stmt>
                    <comment type="line">// Create an Intent that will start the main activity.</comment>
                    <decl_stmt><decl><type><name>Intent</name></type> <name>mainIntent</name> <init>= <expr>new <call><name>Intent</name><argument_list>(<argument><expr><name><name>SplashActivity</name>.<name>this</name></name></expr></argument>, <argument><expr><name><name>CuringDepressionActivity</name>.<name>class</name></name></expr></argument>)</argument_list></call></expr></init></decl>;</decl_stmt>
                    <expr_stmt><expr><call><name><name>SplashActivity</name>.<name>this</name>.<name>startActivity</name></name><argument_list>(<argument><expr><name>mainIntent</name></expr></argument>)</argument_list></call></expr>;</expr_stmt>
                }</block></function>
            }</block></class></expr></argument>, <argument><expr><name>SPLASH_DISPLAY_LENGTH</name></expr></argument>)</argument_list></call></unit>

<unit language="Java" filename="SplashActivity.java" item="6"><call><name><name>SplashActivity</name>.<name>this</name>.<name>finish</name></name><argument_list>()</argument_list></call></unit>

<unit language="Java" filename="SplashActivity.java" item="7"><call><name>Intent</name><argument_list>(<argument><expr><name><name>SplashActivity</name>.<name>this</name></name></expr></argument>, <argument><expr><name><name>CuringDepressionActivity</name>.<name>class</name></name></expr></argument>)</argument_list></call></unit>

<unit language="Java" filename="SplashActivity.java" item="8"><call><name><name>SplashActivity</name>.<name>this</name>.<name>startActivity</name></name><argument_list>(<argument><expr><name>mainIntent</name></expr></argument>)</argument_list></call></unit>

<unit language="Java" filename="SplashActivity.java" item="9"><call><name>finish</name><argument_list>()</argument_list></call></unit>

<unit language="Java" filename="SplashActivity.java" item="10"><call><name>Intent</name><argument_list>(<argument><expr><name><name>SplashActivity</name>.<name>this</name></name></expr></argument>, <argument><expr><name><name>CuringDepressionActivity</name>.<name>class</name></name></expr></argument>)</argument_list></call></unit>

<unit language="Java" filename="SplashActivity.java" item="11"><call><name><name>SplashActivity</name>.<name>this</name>.<name>startActivity</name></name><argument_list>(<argument><expr><name>mainIntent</name></expr></argument>)</argument_list></call></unit>

</unit>
Preethas-MacBook-Pro:srcML preethac$ 
\\ **
\\ Extracting method call sequences between control statements**
\\ **Important: Does not work for commented out snippets of code.**

**\\ Preethas-MacBook-Pro:srcML preethac$ ./srcml2src --xpath="//src:for//src:call/src:name" CuringDepressionActivity.xml** 
\\ <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<unit xmlns="http://www.sdml.info/srcML/src">

<unit language="Java" filename="CuringDepressionActivity.java" item="1"><name><name>Log</name>.<name>v</name></name></unit>

<unit language="Java" filename="CuringDepressionActivity.java" item="2"><name><name>question</name>.<name>toString</name></name></unit>

<unit language="Java" filename="CuringDepressionActivity.java" item="3"><name>View</name></unit>

<unit language="Java" filename="CuringDepressionActivity.java" item="4"><name><name>question</name>.<name>type</name>.<name>equals</name></name></unit>

<unit language="Java" filename="CuringDepressionActivity.java" item="5"><name><name>question</name>.<name>type</name>.<name>equals</name></name></unit>

<unit language="Java" filename="CuringDepressionActivity.java" item="6"><name><name>question</name>.<name>type</name>.<name>equals</name></name></unit>

<unit language="Java" filename="CuringDepressionActivity.java" item="7"><name><name>questionViews</name>.<name>add</name></name></unit>

<unit language="Java" filename="CuringDepressionActivity.java" item="8"><name><name>text</name>.<name>append</name></name></unit>

<unit language="Java" filename="CuringDepressionActivity.java" item="9"><name><name>question</name>.<name>toString</name></name></unit>

</unit>
\\ **Preethas-MacBook-Pro:srcML preethac$ ./srcml2src --xpath="//src:if//src:call/src:name" CuringDepressionActivity.xml** 
\\ <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<unit xmlns="http://www.sdml.info/srcML/src">

<unit language="Java" filename="CuringDepressionActivity.java" item="1"><name>moveTaskToBack</name></unit>

<unit language="Java" filename="CuringDepressionActivity.java" item="2"><name>setContentView</name></unit>

<unit language="Java" filename="CuringDepressionActivity.java" item="3"><name><name>question</name>.<name>type</name>.<name>equals</name></name></unit>

<unit language="Java" filename="CuringDepressionActivity.java" item="4"><name><name>question</name>.<name>type</name>.<name>equals</name></name></unit>

<unit language="Java" filename="CuringDepressionActivity.java" item="5"><name><name>question</name>.<name>type</name>.<name>equals</name></name></unit>

</unit>
Preethas-MacBook-Pro:srcML preethac$ 
**
\\ With Position Enabled**
\\ Preethas-MacBook-Pro:srcML preethac$ ./srcml2src --xpath="//src:if//src:call/src:name" CuringDepressionActivity.xml 
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<unit xmlns="http://www.sdml.info/srcML/src" xmlns:pos="http://www.sdml.info/srcML/position">

<unit language="Java" filename="CuringDepressionActivity.java" pos:tabs="8" pos:line="1" pos:column="1" item="1"><name pos:line="97" pos:column="17">moveTaskToBack</name></unit>

<unit language="Java" filename="CuringDepressionActivity.java" pos:tabs="8" pos:line="1" pos:column="1" item="2"><name pos:line="102" pos:column="13">setContentView</name></unit>

<unit language="Java" filename="CuringDepressionActivity.java" pos:tabs="8" pos:line="1" pos:column="1" item="3"><name><name pos:line="113" pos:column="17">question</name>.<name pos:line="113" pos:column="26">type</name>.<name pos:line="113" pos:column="31">equals</name></name></unit>

<unit language="Java" filename="CuringDepressionActivity.java" pos:tabs="8" pos:line="1" pos:column="1" item="4"><name><name pos:line="116" pos:column="22">question</name>.<name pos:line="116" pos:column="31">type</name>.<name pos:line="116" pos:column="36">equals</name></name></unit>

<unit language="Java" filename="CuringDepressionActivity.java" pos:tabs="8" pos:line="1" pos:column="1" item="5"><name><name pos:line="119" pos:column="22">question</name>.<name pos:line="119" pos:column="31">type</name>.<name pos:line="119" pos:column="36">equals</name></name></unit>

\\ Preethas-MacBook-Pro:srcML preethac$ ./srcml2src --xpath="//src:if//src:block//src:call/src:name" CuringDepressionActivity.xml

\\ <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<unit xmlns="http://www.sdml.info/srcML/src">

<unit language="Java" filename="CuringDepressionActivity.java" item="1"><name>moveTaskToBack</name></unit>

<unit language="Java" filename="CuringDepressionActivity.java" item="2"><name>setContentView</name></unit>

</unit>

**\\ With position enabled:**

\\ Preethas-MacBook-Pro:srcML preethac$ ./srcml2src --xpath="//src:if//src:block//src:call/src:name" CuringDepressionActivity.xml 
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<unit xmlns="http://www.sdml.info/srcML/src" xmlns:pos="http://www.sdml.info/srcML/position">

<unit language="Java" filename="CuringDepressionActivity.java" pos:tabs="8" pos:line="1" pos:column="1" item="1"><name pos:line="97" pos:column="17">moveTaskToBack</name></unit>

<unit language="Java" filename="CuringDepressionActivity.java" pos:tabs="8" pos:line="1" pos:column="1" item="2"><name pos:line="102" pos:column="13">setContentView</name></unit>


\\ 
**\\ To store line numbers of source code**
\\ Preethas-MacBook-Pro:srcML preethac$ ./src2srcml --position CuringDepressionActivity.java -o  CuringDepressionActivity.xml
\\ 
**\\ Question?**
\\ How to determine the control statements?if/for etc?