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Bug fix: let EOF resolve literal token

Browse Source 
Previously only whitespace and comments did it.  This fix is needed
for object streams whose last object is a literal (name, integer,
real, string) not terminated by space or newline.
This commit is contained in:
Jay Berkenbilt 2012-08-11 09:27:30 -04:00
parent 137dc7acb9
commit 29e9c34fe3
3 changed files with 27 additions and 15 deletions
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5
ChangeLog
View File

@ -1,3 +1,8 @@
2012-08-11 Jay Berkenbilt <ejb@ql.org>
* Bug fix: let EOF terminate a literal token as well as
whitespace or comments.
2012-07-31 Jay Berkenbilt <ejb@ql.org>
* 3.0.0: release

35
libqpdf/QPDFTokenizer.cc
View File

@ -434,22 +434,19 @@ QPDFTokenizer::presentCharacter(char ch)
void
QPDFTokenizer::presentEOF()
{
switch (state)
if (state == st_literal)
{
case st_token_ready:
case st_top:
// okay
break;
case st_in_comment:
state = st_top;
break;
default:
QTC::TC("qpdf", "QPDF_Tokenizer EOF reading appendable token");
resolveLiteral();
}
else if (state != st_token_ready)
{
QTC::TC("qpdf", "QPDF_Tokenizer EOF reading token");
type = tt_bad;
error_message = "EOF while reading token";
state = st_token_ready;
}
state = st_token_ready;
}
bool
@ -480,14 +477,22 @@ QPDFTokenizer::readToken(PointerHolder<InputSource> input,
Token token;
bool unread_char;
char char_to_unread;
bool presented_eof = false;
while (! getToken(token, unread_char, char_to_unread))
{
char ch;
if (input->read(&ch, 1) == 0)
{
throw QPDFExc(qpdf_e_damaged_pdf, input->getName(),
context, offset,
"EOF while reading token");
if (! presented_eof)
{
presentEOF();
presented_eof = true;
}
else
{
throw std::logic_error(
"getToken returned false after presenting EOF");
}
}
else
{

2
qpdf/qpdf.testcov
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@ -238,3 +238,5 @@ QPDFWriter copy use_aes 1
QPDFObjectHandle indirect without context 0
QPDFObjectHandle trailing data in parse 0
qpdf pages encryption password 0
QPDF_Tokenizer EOF reading token 0
QPDF_Tokenizer EOF reading appendable token 0