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-rw-r--r--core/src/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp16
1 files changed, 9 insertions, 7 deletions
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp
index eaff29d812..255d0ce29c 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp
@@ -8,7 +8,6 @@
#include "../../../include/fpdfapi/fpdf_parser.h"
#include "../../../include/fpdfapi/fpdf_module.h"
#include "../../../include/fxcodec/fx_codec.h"
-#include "../../../include/fxcrt/fx_ext.h"
#define _STREAM_MAX_SIZE_ 20 * 1024 * 1024
@@ -136,20 +135,23 @@ FX_DWORD _HexDecode(const uint8_t* src_buf,
continue;
int digit;
- if (std::isxdigit(ch)) {
- digit = HexCharToDigit(ch);
+ if (ch <= '9' && ch >= '0') {
+ digit = ch - '0';
+ } else if (ch <= 'f' && ch >= 'a') {
+ digit = ch - 'a' + 10;
+ } else if (ch <= 'F' && ch >= 'A') {
+ digit = ch - 'A' + 10;
} else if (ch == '>') {
i++;
break;
} else {
continue;
}
-
- if (bFirstDigit)
+ if (bFirstDigit) {
dest_buf[dest_size] = digit * 16;
- else
+ } else {
dest_buf[dest_size++] += digit;
-
+ }
bFirstDigit = !bFirstDigit;
}
if (!bFirstDigit) {