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path: root/xfa/fxfa/fm2js/cxfa_fmparser.cpp
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Diffstat (limited to 'xfa/fxfa/fm2js/cxfa_fmparser.cpp')
-rw-r--r--xfa/fxfa/fm2js/cxfa_fmparser.cpp11
1 files changed, 8 insertions, 3 deletions
diff --git a/xfa/fxfa/fm2js/cxfa_fmparser.cpp b/xfa/fxfa/fm2js/cxfa_fmparser.cpp
index 5079ab110e..dca427a20a 100644
--- a/xfa/fxfa/fm2js/cxfa_fmparser.cpp
+++ b/xfa/fxfa/fm2js/cxfa_fmparser.cpp
@@ -16,7 +16,7 @@
namespace {
constexpr unsigned int kMaxParseDepth = 1250;
-constexpr unsigned int kMaxPostExpressions = 16384;
+constexpr unsigned int kMaxPostExpressions = 256;
} // namespace
@@ -688,6 +688,7 @@ std::unique_ptr<CXFA_FMSimpleExpression> CXFA_FMParser::ParsePostExpression(
case TOKlparen: {
if (!NextToken())
return nullptr;
+
std::vector<std::unique_ptr<CXFA_FMSimpleExpression>> expressions;
if (m_token.m_type != TOKrparen) {
while (m_token.m_type != TOKrparen) {
@@ -789,7 +790,8 @@ std::unique_ptr<CXFA_FMSimpleExpression> CXFA_FMParser::ParsePostExpression(
std::move(expr), TOKdot, tempStr, std::move(s));
continue;
}
- } break;
+ break;
+ }
case TOKdotdot: {
if (!NextToken())
return nullptr;
@@ -814,7 +816,8 @@ std::unique_ptr<CXFA_FMSimpleExpression> CXFA_FMParser::ParsePostExpression(
std::move(expr), TOKdotdot, tempStr, std::move(s));
continue;
}
- } break;
+ break;
+ }
case TOKdotscream: {
if (!NextToken())
return nullptr;
@@ -824,6 +827,7 @@ std::unique_ptr<CXFA_FMSimpleExpression> CXFA_FMParser::ParsePostExpression(
WideStringView tempStr = m_token.m_string;
if (!NextToken())
return nullptr;
+
if (m_token.m_type != TOKlbracket) {
std::unique_ptr<CXFA_FMSimpleExpression> s =
pdfium::MakeUnique<CXFA_FMIndexExpression>(ACCESSOR_NO_INDEX,
@@ -832,6 +836,7 @@ std::unique_ptr<CXFA_FMSimpleExpression> CXFA_FMParser::ParsePostExpression(
std::move(expr), TOKdotscream, tempStr, std::move(s));
continue;
}
+
std::unique_ptr<CXFA_FMSimpleExpression> s = ParseIndexExpression();
if (!s)
return nullptr;