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Do not compile the regexp if the input string is empty.
git-svn-id: http://svn.irssi.org/repos/irssi/trunk@4569 dbcabf3a-b0e7-0310-adc4-f8d773084564
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@ -463,7 +463,7 @@ GList *textbuffer_find_text(TEXT_BUFFER_REC *buffer, LINE_REC *startline,
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g_return_val_if_fail(buffer != NULL, NULL);
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g_return_val_if_fail(text != NULL, NULL);
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if (regexp) {
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if (regexp && *text != '\0') {
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#ifdef HAVE_REGEX_H
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int flags = REG_EXTENDED | REG_NOSUB |
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(case_sensitive ? 0 : REG_ICASE);
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