<p>In <a href="https://github.com/geany/geany/pull/1160#discussion_r73525627">ctags/main/entry.c</a>:</p>
<pre style='color:#555'>> @@ -387,7 +387,7 @@ extern void makeTagEntry (const tagEntryInfo *const tag)
>  {
>    Assert (tag->name != NULL);
>    if (tag->name [0] == '\0')
> -          error (WARNING, "ignoring null tag in %s", vStringValue (File.name));
> +          error (WARNING, "ignoring null tag in %s", getInputFileName ());
</pre>
<p>The difference is only when #line directives are used - the "input" value is without line directives processed (which we want because we want the lines in source files) while "source" is when the directives are taken into account. But I think this happens only when some command-line switch is enabled and if not, both are the same.</p>

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