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Merge pull request #72 from akuhtr/master

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Fix debug assertation.
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John McNamara 2016-10-12 23:11:26 +01:00 • committed by GitHub
commit f8bcdbcf7f
1 changed files with 1 additions and 1 deletions
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src/utility.c
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@ -441,7 +441,7 @@ lxw_quote_sheetname(const char *str)
/* Check if the sheetname contains any characters that require it
* to be quoted. Also check for single quotes within the string. */
for (i = 0; i < len; i++) {
if (!isalnum(str[i]) && str[i] != '_' && str[i] != '.')
if (!isalnum((unsigned char)str[i]) && str[i] != '_' && str[i] != '.')
needs_quoting = 1;
if (str[i] == '\'') {