<p>Supports the same expressions as spec %if conditions because, only this returns the result as a string instead of a boolean.</p>
<p>This obviously <em>screams</em> to be wired into macro conditional syntax, but that's left as an exercise for later.</p>

<hr>

<h4>You can view, comment on, or merge this pull request online at:</h4>
<p>  <a href='https://github.com/rpm-software-management/rpm/pull/817'>https://github.com/rpm-software-management/rpm/pull/817</a></p>

<h4>Commit Summary</h4>
<ul>
  <li>Resurrect parseExpressionString()</li>
  <li>Export the expression parsing functions and move to librpmio</li>
  <li>Add %{expr:...} macro for parsing expressions</li>
</ul>

<h4>File Changes</h4>
<ul>
  <li>
    <strong>M</strong>
    <a href="https://github.com/rpm-software-management/rpm/pull/817/files#diff-0">build/Makefile.am</a>
    (2)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/rpm-software-management/rpm/pull/817/files#diff-1">build/parseSpec.c</a>
    (2)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/rpm-software-management/rpm/pull/817/files#diff-2">build/rpmbuild_internal.h</a>
    (8)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/rpm-software-management/rpm/pull/817/files#diff-3">doc/manual/macros</a>
    (1)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/rpm-software-management/rpm/pull/817/files#diff-4">rpmio/Makefile.am</a>
    (2)
  </li>
  <li>
    <strong>R</strong>
    <a href="https://github.com/rpm-software-management/rpm/pull/817/files#diff-5">rpmio/expression.c</a>
    (48)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/rpm-software-management/rpm/pull/817/files#diff-6">rpmio/macro.c</a>
    (5)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/rpm-software-management/rpm/pull/817/files#diff-7">rpmio/rpmmacro.h</a>
    (15)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/rpm-software-management/rpm/pull/817/files#diff-8">tests/rpmmacro.at</a>
    (21)
  </li>
</ul>

<h4>Patch Links:</h4>
<ul>
  <li><a href='https://github.com/rpm-software-management/rpm/pull/817.patch'>https://github.com/rpm-software-management/rpm/pull/817.patch</a></li>
  <li><a href='https://github.com/rpm-software-management/rpm/pull/817.diff'>https://github.com/rpm-software-management/rpm/pull/817.diff</a></li>
</ul>

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