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PORemoving strings from C source code
 

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    <p>Can anyone point me to a program that strips off strings from C source code? Example</p> <pre><code>#include &lt;stdio.h&gt; static const char *place = "world"; char * multiline_str = "one \ two \ three\n"; int main(int argc, char *argv[]) { printf("Hello %s\n", place); printf("The previous line says \"Hello %s\"\n", place); return 0; } </code></pre> <p>becomes</p> <pre><code>#include &lt;stdio.h&gt; static const char *place = ; char * multiline_str = ; int main(int argc, char *argv[]) { printf(, place); printf(, place); return 0; } </code></pre> <p>What I am looking for is a program very much like <a href="http://www.bdc.cx/software/stripcmt/" rel="nofollow noreferrer">stripcmt</a> only that I want to strip strings and not comments.</p> <p>The reason that I am looking for an already developed program and not just some handy regular expression is because when you start considering all corner cases (quotes within strings, multi-line strings etc) things typically start to be (much) more complex than it first appears. And there are limits on what REs can achieve, I suspect it is not possible for this task. If you do think you have an <em>extremely</em> robust regular expression feel free to submit, but please no naive <code>sed 's/"[^"]*"//g'</code> like suggestions.</p> <p>(No need for special handling of (possibly un-ended) strings within comments, those will be removed first)</p> <p>Support for multi-line strings with embedded newlines is not important (not legal C), but strings spanning multiple lines ending with \ at the end must be supported.</p> <p>This is almost the same as the <a href="https://stackoverflow.com/questions/914913/regular-expression-for-stripping-strings-from-source-code">some</a> <a href="https://stackoverflow.com/questions/676296/how-to-tokenize-parse-string-literals-from-javascript-source-code">other</a> <a href="https://stackoverflow.com/questions/965667/regex-to-parse-c-source-code-to-find-all-strings">questions</a>, but I found no reference to any tools.</p>
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    1. COPurely as a matter of interest, why do you need such a tool? In other words, what are you going to do with the tool's output?
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    2. COIt is for token searching. For instance "in what files are functions x, y and z called". By pre-processing, removing comments and strings I will get an accurate result. Currently the strings are generating noise.
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    3. COWouldn't it be better to use a code analysis tool that understands C? There are a lot of them.
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