Add sanity check for "no previous regular expression" state,
bringed by 'more'
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=2768
@ -59,8 +59,11 @@ char *
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re_comp(s)
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char *s;
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{
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if (s == NULL || *s == '\0')
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if (s == NULL || *s == '\0') {
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if (re_regexp == NULL)
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return "no previous regular expression";
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return (NULL);
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}
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if (re_regexp)
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free(re_regexp);
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if (re_errstr)
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