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Fix for 'isalnum' in Windows

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According to the MSN documentation 'isalnum(c)' is only valid when c equals
EOF, or is in the range 0 to 255 inclusive. It states the behavior is
undefined outside this range, and in Debug mode triggers an assert dialog.
This commit is contained in:
Geoff McLane 2017-05-08 18:37:04 +02:00
parent fd77312175
commit 77420b94d0
1 changed files with 9 additions and 1 deletions
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10
src/attrs.c
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@ -1475,13 +1475,21 @@ static void CheckLowerCaseAttrValue( TidyDocImpl* doc, Node *node, AttVal *attva
} }
/* methods for checking value of a specific attribute */ /* methods for checking value of a specific attribute */
#ifdef _WIN32
#define ISUPPER(a) ((a >= 'A') && (a <= 'Z'))
#define ISLOWER(a) ((a >= 'a') && (a <= 'z'))
#define ISNUMERIC(a) ((a >= '0') && (a <= '9'))
#define ISALNUM(a) (ISUPPER(a) || ISLOWER(a) || ISNUMERIC(a))
#else
#define ISALNUM(a) isalnum(a)
#endif
static Bool IsURLCodePoint( ctmbstr p, uint *increment ) static Bool IsURLCodePoint( ctmbstr p, uint *increment )
{ {
uint c; uint c;
*increment = TY_(GetUTF8)( p, &c ) + 1; *increment = TY_(GetUTF8)( p, &c ) + 1;
return isalnum( c ) || return ISALNUM( c ) ||
c == '%' || /* not a valid codepoint, but an escape sequence */ c == '%' || /* not a valid codepoint, but an escape sequence */
c == '#' || /* not a valid codepoint, but a delimiter */ c == '#' || /* not a valid codepoint, but a delimiter */
c == '!' || c == '!' ||