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, 107 insertions, 107 deletions

diff --git a/libqpdf/sha2big.c b/libqpdf/sha2big.c
index e4aadbdb..34d1f3d9 100644
--- a/libqpdf/sha2big.c
+++ b/libqpdf/sha2big.c
@@ -48,60 +48,60 @@
 #define SSG5_1(x)      (ROTR64(x, 19) ^ ROTR64(x, 61) ^ SPH_T64((x) >> 6))
 
 static const sph_u64 K512[80] = {
-	SPH_C64(0x428A2F98D728AE22), SPH_C64(0x7137449123EF65CD),
-	SPH_C64(0xB5C0FBCFEC4D3B2F), SPH_C64(0xE9B5DBA58189DBBC),
-	SPH_C64(0x3956C25BF348B538), SPH_C64(0x59F111F1B605D019),
-	SPH_C64(0x923F82A4AF194F9B), SPH_C64(0xAB1C5ED5DA6D8118),
-	SPH_C64(0xD807AA98A3030242), SPH_C64(0x12835B0145706FBE),
-	SPH_C64(0x243185BE4EE4B28C), SPH_C64(0x550C7DC3D5FFB4E2),
-	SPH_C64(0x72BE5D74F27B896F), SPH_C64(0x80DEB1FE3B1696B1),
-	SPH_C64(0x9BDC06A725C71235), SPH_C64(0xC19BF174CF692694),
-	SPH_C64(0xE49B69C19EF14AD2), SPH_C64(0xEFBE4786384F25E3),
-	SPH_C64(0x0FC19DC68B8CD5B5), SPH_C64(0x240CA1CC77AC9C65),
-	SPH_C64(0x2DE92C6F592B0275), SPH_C64(0x4A7484AA6EA6E483),
-	SPH_C64(0x5CB0A9DCBD41FBD4), SPH_C64(0x76F988DA831153B5),
-	SPH_C64(0x983E5152EE66DFAB), SPH_C64(0xA831C66D2DB43210),
-	SPH_C64(0xB00327C898FB213F), SPH_C64(0xBF597FC7BEEF0EE4),
-	SPH_C64(0xC6E00BF33DA88FC2), SPH_C64(0xD5A79147930AA725),
-	SPH_C64(0x06CA6351E003826F), SPH_C64(0x142929670A0E6E70),
-	SPH_C64(0x27B70A8546D22FFC), SPH_C64(0x2E1B21385C26C926),
-	SPH_C64(0x4D2C6DFC5AC42AED), SPH_C64(0x53380D139D95B3DF),
-	SPH_C64(0x650A73548BAF63DE), SPH_C64(0x766A0ABB3C77B2A8),
-	SPH_C64(0x81C2C92E47EDAEE6), SPH_C64(0x92722C851482353B),
-	SPH_C64(0xA2BFE8A14CF10364), SPH_C64(0xA81A664BBC423001),
-	SPH_C64(0xC24B8B70D0F89791), SPH_C64(0xC76C51A30654BE30),
-	SPH_C64(0xD192E819D6EF5218), SPH_C64(0xD69906245565A910),
-	SPH_C64(0xF40E35855771202A), SPH_C64(0x106AA07032BBD1B8),
-	SPH_C64(0x19A4C116B8D2D0C8), SPH_C64(0x1E376C085141AB53),
-	SPH_C64(0x2748774CDF8EEB99), SPH_C64(0x34B0BCB5E19B48A8),
-	SPH_C64(0x391C0CB3C5C95A63), SPH_C64(0x4ED8AA4AE3418ACB),
-	SPH_C64(0x5B9CCA4F7763E373), SPH_C64(0x682E6FF3D6B2B8A3),
-	SPH_C64(0x748F82EE5DEFB2FC), SPH_C64(0x78A5636F43172F60),
-	SPH_C64(0x84C87814A1F0AB72), SPH_C64(0x8CC702081A6439EC),
-	SPH_C64(0x90BEFFFA23631E28), SPH_C64(0xA4506CEBDE82BDE9),
-	SPH_C64(0xBEF9A3F7B2C67915), SPH_C64(0xC67178F2E372532B),
-	SPH_C64(0xCA273ECEEA26619C), SPH_C64(0xD186B8C721C0C207),
-	SPH_C64(0xEADA7DD6CDE0EB1E), SPH_C64(0xF57D4F7FEE6ED178),
-	SPH_C64(0x06F067AA72176FBA), SPH_C64(0x0A637DC5A2C898A6),
-	SPH_C64(0x113F9804BEF90DAE), SPH_C64(0x1B710B35131C471B),
-	SPH_C64(0x28DB77F523047D84), SPH_C64(0x32CAAB7B40C72493),
-	SPH_C64(0x3C9EBE0A15C9BEBC), SPH_C64(0x431D67C49C100D4C),
-	SPH_C64(0x4CC5D4BECB3E42B6), SPH_C64(0x597F299CFC657E2A),
-	SPH_C64(0x5FCB6FAB3AD6FAEC), SPH_C64(0x6C44198C4A475817)
+        SPH_C64(0x428A2F98D728AE22), SPH_C64(0x7137449123EF65CD),
+        SPH_C64(0xB5C0FBCFEC4D3B2F), SPH_C64(0xE9B5DBA58189DBBC),
+        SPH_C64(0x3956C25BF348B538), SPH_C64(0x59F111F1B605D019),
+        SPH_C64(0x923F82A4AF194F9B), SPH_C64(0xAB1C5ED5DA6D8118),
+        SPH_C64(0xD807AA98A3030242), SPH_C64(0x12835B0145706FBE),
+        SPH_C64(0x243185BE4EE4B28C), SPH_C64(0x550C7DC3D5FFB4E2),
+        SPH_C64(0x72BE5D74F27B896F), SPH_C64(0x80DEB1FE3B1696B1),
+        SPH_C64(0x9BDC06A725C71235), SPH_C64(0xC19BF174CF692694),
+        SPH_C64(0xE49B69C19EF14AD2), SPH_C64(0xEFBE4786384F25E3),
+        SPH_C64(0x0FC19DC68B8CD5B5), SPH_C64(0x240CA1CC77AC9C65),
+        SPH_C64(0x2DE92C6F592B0275), SPH_C64(0x4A7484AA6EA6E483),
+        SPH_C64(0x5CB0A9DCBD41FBD4), SPH_C64(0x76F988DA831153B5),
+        SPH_C64(0x983E5152EE66DFAB), SPH_C64(0xA831C66D2DB43210),
+        SPH_C64(0xB00327C898FB213F), SPH_C64(0xBF597FC7BEEF0EE4),
+        SPH_C64(0xC6E00BF33DA88FC2), SPH_C64(0xD5A79147930AA725),
+        SPH_C64(0x06CA6351E003826F), SPH_C64(0x142929670A0E6E70),
+        SPH_C64(0x27B70A8546D22FFC), SPH_C64(0x2E1B21385C26C926),
+        SPH_C64(0x4D2C6DFC5AC42AED), SPH_C64(0x53380D139D95B3DF),
+        SPH_C64(0x650A73548BAF63DE), SPH_C64(0x766A0ABB3C77B2A8),
+        SPH_C64(0x81C2C92E47EDAEE6), SPH_C64(0x92722C851482353B),
+        SPH_C64(0xA2BFE8A14CF10364), SPH_C64(0xA81A664BBC423001),
+        SPH_C64(0xC24B8B70D0F89791), SPH_C64(0xC76C51A30654BE30),
+        SPH_C64(0xD192E819D6EF5218), SPH_C64(0xD69906245565A910),
+        SPH_C64(0xF40E35855771202A), SPH_C64(0x106AA07032BBD1B8),
+        SPH_C64(0x19A4C116B8D2D0C8), SPH_C64(0x1E376C085141AB53),
+        SPH_C64(0x2748774CDF8EEB99), SPH_C64(0x34B0BCB5E19B48A8),
+        SPH_C64(0x391C0CB3C5C95A63), SPH_C64(0x4ED8AA4AE3418ACB),
+        SPH_C64(0x5B9CCA4F7763E373), SPH_C64(0x682E6FF3D6B2B8A3),
+        SPH_C64(0x748F82EE5DEFB2FC), SPH_C64(0x78A5636F43172F60),
+        SPH_C64(0x84C87814A1F0AB72), SPH_C64(0x8CC702081A6439EC),
+        SPH_C64(0x90BEFFFA23631E28), SPH_C64(0xA4506CEBDE82BDE9),
+        SPH_C64(0xBEF9A3F7B2C67915), SPH_C64(0xC67178F2E372532B),
+        SPH_C64(0xCA273ECEEA26619C), SPH_C64(0xD186B8C721C0C207),
+        SPH_C64(0xEADA7DD6CDE0EB1E), SPH_C64(0xF57D4F7FEE6ED178),
+        SPH_C64(0x06F067AA72176FBA), SPH_C64(0x0A637DC5A2C898A6),
+        SPH_C64(0x113F9804BEF90DAE), SPH_C64(0x1B710B35131C471B),
+        SPH_C64(0x28DB77F523047D84), SPH_C64(0x32CAAB7B40C72493),
+        SPH_C64(0x3C9EBE0A15C9BEBC), SPH_C64(0x431D67C49C100D4C),
+        SPH_C64(0x4CC5D4BECB3E42B6), SPH_C64(0x597F299CFC657E2A),
+        SPH_C64(0x5FCB6FAB3AD6FAEC), SPH_C64(0x6C44198C4A475817)
 };
 
 static const sph_u64 H384[8] = {
-	SPH_C64(0xCBBB9D5DC1059ED8), SPH_C64(0x629A292A367CD507),
-	SPH_C64(0x9159015A3070DD17), SPH_C64(0x152FECD8F70E5939),
-	SPH_C64(0x67332667FFC00B31), SPH_C64(0x8EB44A8768581511),
-	SPH_C64(0xDB0C2E0D64F98FA7), SPH_C64(0x47B5481DBEFA4FA4)
+        SPH_C64(0xCBBB9D5DC1059ED8), SPH_C64(0x629A292A367CD507),
+        SPH_C64(0x9159015A3070DD17), SPH_C64(0x152FECD8F70E5939),
+        SPH_C64(0x67332667FFC00B31), SPH_C64(0x8EB44A8768581511),
+        SPH_C64(0xDB0C2E0D64F98FA7), SPH_C64(0x47B5481DBEFA4FA4)
 };
 
 static const sph_u64 H512[8] = {
-	SPH_C64(0x6A09E667F3BCC908), SPH_C64(0xBB67AE8584CAA73B),
-	SPH_C64(0x3C6EF372FE94F82B), SPH_C64(0xA54FF53A5F1D36F1),
-	SPH_C64(0x510E527FADE682D1), SPH_C64(0x9B05688C2B3E6C1F),
-	SPH_C64(0x1F83D9ABFB41BD6B), SPH_C64(0x5BE0CD19137E2179)
+        SPH_C64(0x6A09E667F3BCC908), SPH_C64(0xBB67AE8584CAA73B),
+        SPH_C64(0x3C6EF372FE94F82B), SPH_C64(0xA54FF53A5F1D36F1),
+        SPH_C64(0x510E527FADE682D1), SPH_C64(0x9B05688C2B3E6C1F),
+        SPH_C64(0x1F83D9ABFB41BD6B), SPH_C64(0x5BE0CD19137E2179)
 };
 
 /*
@@ -120,50 +120,50 @@ static const sph_u64 H512[8] = {
  */
 
 #define SHA3_STEP(A, B, C, D, E, F, G, H, i)   do { \
-		sph_u64 T1, T2; \
-		T1 = SPH_T64(H + BSG5_1(E) + CH(E, F, G) + K512[i] + W[i]); \
-		T2 = SPH_T64(BSG5_0(A) + MAJ(A, B, C)); \
-		D = SPH_T64(D + T1); \
-		H = SPH_T64(T1 + T2); \
-	} while (0)
+                sph_u64 T1, T2; \
+                T1 = SPH_T64(H + BSG5_1(E) + CH(E, F, G) + K512[i] + W[i]); \
+                T2 = SPH_T64(BSG5_0(A) + MAJ(A, B, C)); \
+                D = SPH_T64(D + T1); \
+                H = SPH_T64(T1 + T2); \
+        } while (0)
 
 #define SHA3_ROUND_BODY(in, r)   do { \
-		int i; \
-		sph_u64 A, B, C, D, E, F, G, H; \
-		sph_u64 W[80]; \
+                int i; \
+                sph_u64 A, B, C, D, E, F, G, H; \
+                sph_u64 W[80]; \
  \
- 		for (i = 0; i < 16; i ++) \
-			W[i] = in(i); \
-		for (i = 16; i < 80; i ++) \
- 			W[i] = SPH_T64(SSG5_1(W[i - 2]) + W[i - 7] \
-				+ SSG5_0(W[i - 15]) + W[i - 16]); \
-		A = (r)[0]; \
-		B = (r)[1]; \
-		C = (r)[2]; \
-		D = (r)[3]; \
-		E = (r)[4]; \
-		F = (r)[5]; \
-		G = (r)[6]; \
-		H = (r)[7]; \
-		for (i = 0; i < 80; i += 8) { \
-			SHA3_STEP(A, B, C, D, E, F, G, H, i + 0); \
-			SHA3_STEP(H, A, B, C, D, E, F, G, i + 1); \
-			SHA3_STEP(G, H, A, B, C, D, E, F, i + 2); \
-			SHA3_STEP(F, G, H, A, B, C, D, E, i + 3); \
-			SHA3_STEP(E, F, G, H, A, B, C, D, i + 4); \
-			SHA3_STEP(D, E, F, G, H, A, B, C, i + 5); \
-			SHA3_STEP(C, D, E, F, G, H, A, B, i + 6); \
-			SHA3_STEP(B, C, D, E, F, G, H, A, i + 7); \
-		} \
-		(r)[0] = SPH_T64((r)[0] + A); \
-		(r)[1] = SPH_T64((r)[1] + B); \
-		(r)[2] = SPH_T64((r)[2] + C); \
-		(r)[3] = SPH_T64((r)[3] + D); \
-		(r)[4] = SPH_T64((r)[4] + E); \
-		(r)[5] = SPH_T64((r)[5] + F); \
-		(r)[6] = SPH_T64((r)[6] + G); \
-		(r)[7] = SPH_T64((r)[7] + H); \
-	} while (0)
+                for (i = 0; i < 16; i ++) \
+                        W[i] = in(i); \
+                for (i = 16; i < 80; i ++) \
+                        W[i] = SPH_T64(SSG5_1(W[i - 2]) + W[i - 7] \
+                                + SSG5_0(W[i - 15]) + W[i - 16]); \
+                A = (r)[0]; \
+                B = (r)[1]; \
+                C = (r)[2]; \
+                D = (r)[3]; \
+                E = (r)[4]; \
+                F = (r)[5]; \
+                G = (r)[6]; \
+                H = (r)[7]; \
+                for (i = 0; i < 80; i += 8) { \
+                        SHA3_STEP(A, B, C, D, E, F, G, H, i + 0); \
+                        SHA3_STEP(H, A, B, C, D, E, F, G, i + 1); \
+                        SHA3_STEP(G, H, A, B, C, D, E, F, i + 2); \
+                        SHA3_STEP(F, G, H, A, B, C, D, E, i + 3); \
+                        SHA3_STEP(E, F, G, H, A, B, C, D, i + 4); \
+                        SHA3_STEP(D, E, F, G, H, A, B, C, i + 5); \
+                        SHA3_STEP(C, D, E, F, G, H, A, B, i + 6); \
+                        SHA3_STEP(B, C, D, E, F, G, H, A, i + 7); \
+                } \
+                (r)[0] = SPH_T64((r)[0] + A); \
+                (r)[1] = SPH_T64((r)[1] + B); \
+                (r)[2] = SPH_T64((r)[2] + C); \
+                (r)[3] = SPH_T64((r)[3] + D); \
+                (r)[4] = SPH_T64((r)[4] + E); \
+                (r)[5] = SPH_T64((r)[5] + F); \
+                (r)[6] = SPH_T64((r)[6] + G); \
+                (r)[7] = SPH_T64((r)[7] + H); \
+        } while (0)
 
 /*
  * One round of SHA-384 / SHA-512. The data must be aligned for 64-bit access.
@@ -172,7 +172,7 @@ static void
 sha3_round(const unsigned char *data, sph_u64 r[8])
 {
 #define SHA3_IN(x)   sph_dec64be_aligned(data + (8 * (x)))
-	SHA3_ROUND_BODY(SHA3_IN, r);
+        SHA3_ROUND_BODY(SHA3_IN, r);
 #undef SHA3_IN
 }
 
@@ -180,22 +180,22 @@ sha3_round(const unsigned char *data, sph_u64 r[8])
 void
 sph_sha384_init(void *cc)
 {
-	sph_sha384_context *sc;
+        sph_sha384_context *sc;
 
-	sc = cc;
-	memcpy(sc->val, H384, sizeof H384);
-	sc->count = 0;
+        sc = cc;
+        memcpy(sc->val, H384, sizeof H384);
+        sc->count = 0;
 }
 
 /* see sph_sha3.h */
 void
 sph_sha512_init(void *cc)
 {
-	sph_sha512_context *sc;
+        sph_sha512_context *sc;
 
-	sc = cc;
-	memcpy(sc->val, H512, sizeof H512);
-	sc->count = 0;
+        sc = cc;
+        memcpy(sc->val, H512, sizeof H512);
+        sc->count = 0;
 }
 
 #define RFUN   sha3_round
@@ -207,32 +207,32 @@ sph_sha512_init(void *cc)
 void
 sph_sha384_close(void *cc, void *dst)
 {
-	sha384_close(cc, dst, 6);
-	sph_sha384_init(cc);
+        sha384_close(cc, dst, 6);
+        sph_sha384_init(cc);
 }
 
 /* see sph_sha3.h */
 void
 sph_sha384_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst)
 {
-	sha384_addbits_and_close(cc, ub, n, dst, 6);
-	sph_sha384_init(cc);
+        sha384_addbits_and_close(cc, ub, n, dst, 6);
+        sph_sha384_init(cc);
 }
 
 /* see sph_sha3.h */
 void
 sph_sha512_close(void *cc, void *dst)
 {
-	sha384_close(cc, dst, 8);
-	sph_sha512_init(cc);
+        sha384_close(cc, dst, 8);
+        sph_sha512_init(cc);
 }
 
 /* see sph_sha3.h */
 void
 sph_sha512_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst)
 {
-	sha384_addbits_and_close(cc, ub, n, dst, 8);
-	sph_sha512_init(cc);
+        sha384_addbits_and_close(cc, ub, n, dst, 8);
+        sph_sha512_init(cc);
 }
 
 /* see sph_sha3.h */
@@ -240,7 +240,7 @@ void
 sph_sha384_comp(const sph_u64 msg[16], sph_u64 val[8])
 {
 #define SHA3_IN(x)   msg[x]
-	SHA3_ROUND_BODY(SHA3_IN, val);
+        SHA3_ROUND_BODY(SHA3_IN, val);
 #undef SHA3_IN
 }