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edba2db034
PR: ports/200631 Submitted by: Walter Hop Security: VuXML: bd1ab7a5-0e01-11e5-9976-a0f3c100ae18
23 lines
1 KiB
C
23 lines
1 KiB
C
--- src/lexer.c.orig 2008-03-22 21:06:55 UTC
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+++ src/lexer.c
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@@ -3467,16 +3467,17 @@ static tmbstr ParseValue( TidyDocImpl* d
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/* and prompts attributes unless --literal-attributes is set to yes */
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/* #994841 - Whitespace is removed from value attributes */
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- if (munge &&
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+ /* Issue #217 from tidy-html5 - Also only if/while (len > 0) - MUST NEVER GO NEGATIVE! */
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+ if ((len > 0) && munge &&
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TY_(tmbstrcasecmp)(name, "alt") &&
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TY_(tmbstrcasecmp)(name, "title") &&
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TY_(tmbstrcasecmp)(name, "value") &&
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TY_(tmbstrcasecmp)(name, "prompt"))
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{
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- while (TY_(IsWhite)(lexer->lexbuf[start+len-1]))
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+ while (TY_(IsWhite)(lexer->lexbuf[start+len-1]) && (len > 0))
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--len;
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- while (TY_(IsWhite)(lexer->lexbuf[start]) && start < len)
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+ while (TY_(IsWhite)(lexer->lexbuf[start]) && (start < len) && (len > 0))
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{
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++start;
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--len;
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