WHITESPACE ONLY -- expand tabs in source code

This comment expands all tabs using an 8-character tab-width. You
should ignore this commit when using git blame or use git blame -w.

In the early days, I used to use tabs where possible for indentation,
since emacs did this automatically. In recent years, I have switched
to only using spaces, which means qpdf source code has been a mixture
of spaces and tabs. I have avoided cleaning this up because of not
wanting gratuitous whitespaces change to cloud the output of git
blame, but I changed my mind after discussing with users who view qpdf
source code in editors/IDEs that have other tab widths by default and
in light of the fact that I am planning to start applying automatic
code formatting soon.

1 files changed, 47 insertions, 47 deletions

diff --git a/include/qpdf/QPDFWriter.hh b/include/qpdf/QPDFWriter.hh
index cb6585f0..97d190a7 100644
--- a/include/qpdf/QPDFWriter.hh
+++ b/include/qpdf/QPDFWriter.hh
@@ -370,73 +370,73 @@ class QPDFWriter
     // it unless you have to.
     QPDF_DLL
     void setR2EncryptionParameters(
-	char const* user_password, char const* owner_password,
-	bool allow_print, bool allow_modify,
-	bool allow_extract, bool allow_annotate);
+        char const* user_password, char const* owner_password,
+        bool allow_print, bool allow_modify,
+        bool allow_extract, bool allow_annotate);
     // R3 uses RC4, which is a weak cryptographic algorithm. Don't use
     // it unless you have to.
     QPDF_DLL
     void setR3EncryptionParameters(
-	char const* user_password, char const* owner_password,
-	bool allow_accessibility, bool allow_extract,
+        char const* user_password, char const* owner_password,
+        bool allow_accessibility, bool allow_extract,
         bool allow_assemble, bool allow_annotate_and_form,
         bool allow_form_filling, bool allow_modify_other,
-	qpdf_r3_print_e print);
+        qpdf_r3_print_e print);
     // R4 uses RC4, which is a weak cryptographic algorithm, when
     // use_aes=false. Don't use it unless you have to.
     QPDF_DLL
     void setR4EncryptionParameters(
-	char const* user_password, char const* owner_password,
-	bool allow_accessibility, bool allow_extract,
+        char const* user_password, char const* owner_password,
+        bool allow_accessibility, bool allow_extract,
         bool allow_assemble, bool allow_annotate_and_form,
         bool allow_form_filling, bool allow_modify_other,
-	qpdf_r3_print_e print, bool encrypt_metadata, bool use_aes);
+        qpdf_r3_print_e print, bool encrypt_metadata, bool use_aes);
     // R5 is deprecated.  Do not use it for production use.  Writing
     // R5 is supported by qpdf primarily to generate test files for
     // applications that may need to test R5 support.
     QPDF_DLL
     void setR5EncryptionParameters(
-	char const* user_password, char const* owner_password,
-	bool allow_accessibility, bool allow_extract,
+        char const* user_password, char const* owner_password,
+        bool allow_accessibility, bool allow_extract,
         bool allow_assemble, bool allow_annotate_and_form,
         bool allow_form_filling, bool allow_modify_other,
-	qpdf_r3_print_e print, bool encrypt_metadata);
+        qpdf_r3_print_e print, bool encrypt_metadata);
     QPDF_DLL
     void setR6EncryptionParameters(
-	char const* user_password, char const* owner_password,
-	bool allow_accessibility, bool allow_extract,
+        char const* user_password, char const* owner_password,
+        bool allow_accessibility, bool allow_extract,
         bool allow_assemble, bool allow_annotate_and_form,
         bool allow_form_filling, bool allow_modify_other,
-	qpdf_r3_print_e print, bool encrypt_metadata_aes);
+        qpdf_r3_print_e print, bool encrypt_metadata_aes);
 
     // Pre qpdf 8.4.0 API
     [[deprecated("see newer API above")]]
     QPDF_DLL
     void setR3EncryptionParameters(
-	char const* user_password, char const* owner_password,
-	bool allow_accessibility, bool allow_extract,
-	qpdf_r3_print_e print, qpdf_r3_modify_e modify);
+        char const* user_password, char const* owner_password,
+        bool allow_accessibility, bool allow_extract,
+        qpdf_r3_print_e print, qpdf_r3_modify_e modify);
     [[deprecated("see newer API above")]]
     QPDF_DLL
     void setR4EncryptionParameters(
-	char const* user_password, char const* owner_password,
-	bool allow_accessibility, bool allow_extract,
-	qpdf_r3_print_e print, qpdf_r3_modify_e modify,
-	bool encrypt_metadata, bool use_aes);
+        char const* user_password, char const* owner_password,
+        bool allow_accessibility, bool allow_extract,
+        qpdf_r3_print_e print, qpdf_r3_modify_e modify,
+        bool encrypt_metadata, bool use_aes);
     [[deprecated("see newer API above")]]
     QPDF_DLL
     void setR5EncryptionParameters(
-	char const* user_password, char const* owner_password,
-	bool allow_accessibility, bool allow_extract,
-	qpdf_r3_print_e print, qpdf_r3_modify_e modify,
-	bool encrypt_metadata);
+        char const* user_password, char const* owner_password,
+        bool allow_accessibility, bool allow_extract,
+        qpdf_r3_print_e print, qpdf_r3_modify_e modify,
+        bool encrypt_metadata);
     [[deprecated("see newer API above")]]
     QPDF_DLL
     void setR6EncryptionParameters(
-	char const* user_password, char const* owner_password,
-	bool allow_accessibility, bool allow_extract,
-	qpdf_r3_print_e print, qpdf_r3_modify_e modify,
-	bool encrypt_metadata_aes);
+        char const* user_password, char const* owner_password,
+        bool allow_accessibility, bool allow_extract,
+        qpdf_r3_print_e print, qpdf_r3_modify_e modify,
+        bool encrypt_metadata_aes);
 
     // Create linearized output.  Disables qdf mode, content
     // normalization, and stream prefiltering.
@@ -494,8 +494,8 @@ class QPDFWriter
 
   private:
     // flags used by unparseObject
-    static int const f_stream = 	1 << 0;
-    static int const f_filtered =	1 << 1;
+    static int const f_stream =         1 << 0;
+    static int const f_filtered =       1 << 1;
     static int const f_in_ostream =     1 << 2;
     static int const f_hex_string =     1 << 3;
     static int const f_no_encryption =  1 << 4;
@@ -544,14 +544,14 @@ class QPDFWriter
     void writeObjectStream(QPDFObjectHandle object);
     void writeObject(QPDFObjectHandle object, int object_stream_index = -1);
     void writeTrailer(trailer_e which, int size,
-		      bool xref_stream, qpdf_offset_t prev,
+                      bool xref_stream, qpdf_offset_t prev,
                       int linearization_pass);
     bool willFilterStream(QPDFObjectHandle stream,
                           bool& compress_stream, bool& is_metadata,
                           PointerHolder<Buffer>* stream_data);
     void unparseObject(QPDFObjectHandle object, int level, int flags,
-		       // for stream dictionaries
-		       size_t stream_length = 0, bool compress = false);
+                       // for stream dictionaries
+                       size_t stream_length = 0, bool compress = false);
     void unparseChild(QPDFObjectHandle child, int level, int flags);
     void initializeSpecialStreams();
     void preserveObjectStreams();
@@ -559,24 +559,24 @@ class QPDFWriter
     std::string getOriginalID1();
     void generateID();
     void interpretR3EncryptionParameters(
-	std::set<int>& bits_to_clear,
-	char const* user_password, char const* owner_password,
-	bool allow_accessibility, bool allow_extract,
+        std::set<int>& bits_to_clear,
+        char const* user_password, char const* owner_password,
+        bool allow_accessibility, bool allow_extract,
         bool allow_assemble, bool allow_annotate_and_form,
         bool allow_form_filling, bool allow_modify_other,
-	qpdf_r3_print_e print, qpdf_r3_modify_e modify);
+        qpdf_r3_print_e print, qpdf_r3_modify_e modify);
     void disableIncompatibleEncryption(int major, int minor,
                                        int extension_level);
     void parseVersion(std::string const& version, int& major, int& minor) const;
     int compareVersions(int major1, int minor1, int major2, int minor2) const;
     void setEncryptionParameters(
-	char const* user_password, char const* owner_password,
-	int V, int R, int key_len, std::set<int>& bits_to_clear);
+        char const* user_password, char const* owner_password,
+        int V, int R, int key_len, std::set<int>& bits_to_clear);
     void setEncryptionParametersInternal(
-	int V, int R, int key_len, int P,
-	std::string const& O, std::string const& U,
-	std::string const& OE, std::string const& UE, std::string const& Perms,
-	std::string const& id1, std::string const& user_password,
+        int V, int R, int key_len, int P,
+        std::string const& O, std::string const& U,
+        std::string const& OE, std::string const& UE, std::string const& Perms,
+        std::string const& id1, std::string const& user_password,
         std::string const& encryption_key);
     void setDataKey(int objid);
     int openObject(int objid = 0);
@@ -679,8 +679,8 @@ class QPDFWriter
         int encryption_V;
         int encryption_R;
 
-        std::string id1;		// for /ID key of
-        std::string id2;		// trailer dictionary
+        std::string id1;                // for /ID key of
+        std::string id2;                // trailer dictionary
         std::string final_pdf_version;
         int final_extension_level;
         std::string min_pdf_version;