From cb769c62e55599e9f980001830bc61d9fcaa64a9 Mon Sep 17 00:00:00 2001
From: Jay Berkenbilt <ejb@ql.org>
Date: Tue, 8 Feb 2022 09:18:08 -0500
Subject: 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.
---
 libqpdf/Pl_ASCII85Decoder.cc | 140 +++++++++++++++++++++----------------------
 1 file changed, 70 insertions(+), 70 deletions(-)

(limited to 'libqpdf/Pl_ASCII85Decoder.cc')

diff --git a/libqpdf/Pl_ASCII85Decoder.cc b/libqpdf/Pl_ASCII85Decoder.cc
index 21926d95..c8e6d860 100644
--- a/libqpdf/Pl_ASCII85Decoder.cc
+++ b/libqpdf/Pl_ASCII85Decoder.cc
@@ -21,77 +21,77 @@ Pl_ASCII85Decoder::write(unsigned char* buf, size_t len)
 {
     if (eod > 1)
     {
-	return;
+        return;
     }
     for (size_t i = 0; i < len; ++i)
     {
-	if (eod > 1)
-	{
-	    break;
-	}
-	else if (eod == 1)
-	{
-	    if (buf[i] == '>')
-	    {
-		flush();
-		eod = 2;
-	    }
-	    else
-	    {
-		throw std::runtime_error(
-		    "broken end-of-data sequence in base 85 data");
-	    }
-	}
-	else
-	{
-	    switch (buf[i])
-	    {
-	      case ' ':
-	      case '\f':
-	      case '\v':
-	      case '\t':
-	      case '\r':
-	      case '\n':
-		QTC::TC("libtests", "Pl_ASCII85Decoder ignore space");
-		// ignore whitespace
-		break;
+        if (eod > 1)
+        {
+            break;
+        }
+        else if (eod == 1)
+        {
+            if (buf[i] == '>')
+            {
+                flush();
+                eod = 2;
+            }
+            else
+            {
+                throw std::runtime_error(
+                    "broken end-of-data sequence in base 85 data");
+            }
+        }
+        else
+        {
+            switch (buf[i])
+            {
+              case ' ':
+              case '\f':
+              case '\v':
+              case '\t':
+              case '\r':
+              case '\n':
+                QTC::TC("libtests", "Pl_ASCII85Decoder ignore space");
+                // ignore whitespace
+                break;
 
-	      case '~':
-		eod = 1;
-		break;
+              case '~':
+                eod = 1;
+                break;
 
-	      case 'z':
-		if (pos != 0)
-		{
-		    throw std::runtime_error(
-			"unexpected z during base 85 decode");
-		}
-		else
-		{
-		    QTC::TC("libtests", "Pl_ASCII85Decoder read z");
+              case 'z':
+                if (pos != 0)
+                {
+                    throw std::runtime_error(
+                        "unexpected z during base 85 decode");
+                }
+                else
+                {
+                    QTC::TC("libtests", "Pl_ASCII85Decoder read z");
                     unsigned char zeroes[4];
                     memset(zeroes, '\0', 4);
-		    getNext()->write(zeroes, 4);
-		}
-		break;
+                    getNext()->write(zeroes, 4);
+                }
+                break;
 
-	      default:
-		if ((buf[i] < 33) || (buf[i] > 117))
-		{
-		    throw std::runtime_error(
-			"character out of range during base 85 decode");
-		}
-		else
-		{
-		    this->inbuf[this->pos++] = buf[i];
-		    if (pos == 5)
-		    {
-			flush();
-		    }
-		}
-		break;
-	    }
-	}
+              default:
+                if ((buf[i] < 33) || (buf[i] > 117))
+                {
+                    throw std::runtime_error(
+                        "character out of range during base 85 decode");
+                }
+                else
+                {
+                    this->inbuf[this->pos++] = buf[i];
+                    if (pos == 5)
+                    {
+                        flush();
+                    }
+                }
+                break;
+            }
+        }
     }
 }
 
@@ -100,26 +100,26 @@ Pl_ASCII85Decoder::flush()
 {
     if (this->pos == 0)
     {
-	QTC::TC("libtests", "Pl_ASCII85Decoder no-op flush");
-	return;
+        QTC::TC("libtests", "Pl_ASCII85Decoder no-op flush");
+        return;
     }
     unsigned long lval = 0;
     for (int i = 0; i < 5; ++i)
     {
-	lval *= 85;
-	lval += (this->inbuf[i] - 33U);
+        lval *= 85;
+        lval += (this->inbuf[i] - 33U);
     }
 
     unsigned char outbuf[4];
     memset(outbuf, 0, 4);
     for (int i = 3; i >= 0; --i)
     {
-	outbuf[i] = lval & 0xff;
-	lval >>= 8;
+        outbuf[i] = lval & 0xff;
+        lval >>= 8;
     }
 
     QTC::TC("libtests", "Pl_ASCII85Decoder partial flush",
-	    (this->pos == 5) ? 0 : 1);
+            (this->pos == 5) ? 0 : 1);
     // Reset before calling getNext()->write in case that throws an
     // exception.
     auto t = this->pos - 1;
-- 
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