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diffutils/diffutils-2.8.1-i18n-0.2.patch

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--- diffutils-2.8.7-cvs/configure.ac
+++ diffutils-2.8.7-cvs/configure.ac
@@ -57,6 +57,7 @@ if test $ac_cv_func_sigprocmask = no; th
fi
AC_FUNC_CLOSEDIR_VOID
AC_FUNC_FORK
+AC_FUNC_MBRTOWC
AM_GNU_GETTEXT([external], [need-formatstring-macros])
AM_GNU_GETTEXT_VERSION([0.15])
--- diffutils-2.8.7-cvs/src/diff.c
+++ diffutils-2.8.7-cvs/src/diff.c
@@ -276,6 +276,13 @@ main (int argc, char **argv)
re_set_syntax (RE_SYNTAX_GREP | RE_NO_POSIX_BACKTRACKING);
excluded = new_exclude ();
+#ifdef HANDLE_MULTIBYTE
+ if (MB_CUR_MAX > 1)
+ lines_differ = lines_differ_multibyte;
+ else
+#endif
+ lines_differ = lines_differ_singlebyte;
+
/* Decode the options. */
while ((c = getopt_long (argc, argv, shortopts, longopts, NULL)) != -1)
--- diffutils-2.8.7-cvs/src/diff.h
+++ diffutils-2.8.7-cvs/src/diff.h
@@ -23,6 +23,17 @@
#include <stdio.h>
#include <unlocked-io.h>
+/* For platform which support the ISO C amendement 1 functionality we
+ support user defined character classes. */
+#if defined HAVE_WCTYPE_H && defined HAVE_WCHAR_H
+/* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>. */
+# include <wchar.h>
+# include <wctype.h>
+# if defined (HAVE_MBRTOWC)
+# define HANDLE_MULTIBYTE 1
+# endif
+#endif
+
/* What kind of changes a hunk contains. */
enum changes
{
@@ -353,7 +364,13 @@ extern char const change_letter[4];
extern char const pr_program[];
char *concat (char const *, char const *, char const *);
char *dir_file_pathname (char const *, char const *);
-bool lines_differ (char const *, char const *);
+
+bool (*lines_differ) (char const *, char const *);
+bool lines_differ_singlebyte (char const *, char const *);
+#ifdef HANDLE_MULTIBYTE
+bool lines_differ_multibyte (char const *, char const *);
+#endif
+
lin translate_line_number (struct file_data const *, lin);
struct change *find_change (struct change *);
struct change *find_reverse_change (struct change *);
--- diffutils-2.8.7-cvs/src/io.c
+++ diffutils-2.8.7-cvs/src/io.c
@@ -22,6 +22,7 @@
#include <cmpbuf.h>
#include <file-type.h>
#include <xalloc.h>
+#include <assert.h>
/* Rotate an unsigned value to the left. */
#define ROL(v, n) ((v) << (n) | (v) >> (sizeof (v) * CHAR_BIT - (n)))
@@ -194,6 +195,28 @@ slurp (struct file_data *current)
/* Split the file into lines, simultaneously computing the equivalence
class for each line. */
+#ifdef HANDLE_MULTIBYTE
+# define MBC2WC(P, END, MBLENGTH, WC, STATE, CONVFAIL) \
+do \
+{ \
+ mbstate_t state_bak = STATE; \
+ \
+ CONVFAIL = 0; \
+ MBLENGTH = mbrtowc (&WC, P, END - (char const *) P, &STATE); \
+ \
+ switch (MBLENGTH) \
+ { \
+ case (size_t) -2: \
+ case (size_t) -1: \
+ STATE = state_bak; \
+ ++CONVFAIL; \
+ /* Fall through. */ \
+ case 0: \
+ MBLENGTH = 1; \
+ } \
+} \
+while (0)
+#endif
static void
find_and_hash_each_line (struct file_data *current)
@@ -220,11 +243,294 @@ find_and_hash_each_line (struct file_dat
bool same_length_diff_contents_compare_anyway =
diff_length_compare_anyway | ignore_case;
+#ifdef HANDLE_MULTIBYTE
+ wchar_t wc;
+ size_t mblength;
+ mbstate_t state;
+ int convfail;
+
+ memset (&state, '\0', sizeof (mbstate_t));
+#endif
+
while (p < suffix_begin)
{
char const *ip = p;
h = 0;
+#ifdef HANDLE_MULTIBYTE
+ if (MB_CUR_MAX > 1)
+ {
+ wchar_t lo_wc;
+ char mbc[MB_LEN_MAX];
+ mbstate_t state_wc;
+
+ /* Hash this line until we find a newline. */
+ switch (ignore_white_space)
+ {
+ case IGNORE_ALL_SPACE:
+ while (1)
+ {
+ if (*p == '\n')
+ {
+ ++p;
+ break;
+ }
+
+ MBC2WC (p, suffix_begin, mblength, wc, state, convfail);
+
+ if (convfail)
+ mbc[0] = *p++;
+ else if (!iswspace (wc))
+ {
+ bool flag = 0;
+
+ if (ignore_case)
+ {
+ lo_wc = towlower (wc);
+ if (lo_wc != wc)
+ {
+ flag = 1;
+
+ p += mblength;
+ memset (&state_wc, '\0', sizeof (mbstate_t));
+ mblength = wcrtomb (mbc, lo_wc, &state_wc);
+
+ assert (mblength != (size_t) -1 &&
+ mblength != (size_t) -2);
+
+ mblength = mblength < 1 ? 1 : mblength;
+ }
+ }
+
+ if (!flag)
+ {
+ for (i = 0; i < mblength; i++)
+ mbc[i] = *p++;
+ }
+ }
+ else
+ {
+ p += mblength;
+ continue;
+ }
+
+ for (i = 0; i < mblength; i++)
+ {
+ c = mbc[i];
+ h = HASH (h, c);
+ }
+ }
+ break;
+
+ case IGNORE_SPACE_CHANGE:
+ while (1)
+ {
+ if (*p == '\n')
+ {
+ ++p;
+ break;
+ }
+
+ MBC2WC (p, suffix_begin, mblength, wc, state, convfail);
+
+ if (!convfail && iswspace (wc))
+ {
+ while (1)
+ {
+ if (*p == '\n')
+ {
+ ++p;
+ goto hashing_done;
+ }
+
+ p += mblength;
+ MBC2WC (p, suffix_begin, mblength, wc, state, convfail);
+ if (convfail || (!convfail && !iswspace (wc)))
+ break;
+ }
+ h = HASH (h, ' ');
+ }
+
+ /* WC is now the first non-space. */
+ if (convfail)
+ mbc[0] = *p++;
+ else
+ {
+ bool flag = 0;
+
+ if (ignore_case)
+ {
+ lo_wc = towlower (wc);
+ if (lo_wc != wc)
+ {
+ flag = 1;
+
+ p += mblength;
+ memset (&state_wc, '\0', sizeof (mbstate_t));
+ mblength = wcrtomb (mbc, lo_wc, &state_wc);
+
+ assert (mblength != (size_t) -1 &&
+ mblength != (size_t) -2);
+
+ mblength = mblength < 1 ? 1 : mblength;
+ }
+ }
+
+ if (!flag)
+ {
+ for (i = 0; i < mblength; i++)
+ mbc[i] = *p++;
+ }
+ }
+
+ for (i = 0; i < mblength; i++)
+ {
+ c = mbc[i];
+ h = HASH (h, c);
+ }
+ }
+ break;
+
+ case IGNORE_TAB_EXPANSION:
+ {
+ size_t column = 0;
+
+ while (1)
+ {
+ if (*p == '\n')
+ {
+ ++p;
+ break;
+ }
+
+ MBC2WC (p, suffix_begin, mblength, wc, state, convfail);
+
+ if (convfail)
+ {
+ c = *p++;
+ h = HASH (h, c);
+ ++column;
+ }
+ else
+ {
+ bool flag;
+
+ switch (wc)
+ {
+ case L'\b':
+ column -= 0 < column;
+ h = HASH (h, '\b');
+ ++p;
+ break;
+
+ case L'\t':
+ {
+ size_t repetitions;
+ repetitions = tabsize - column % tabsize;
+ column = (column + repetitions < column
+ ? 0
+ : column + repetitions);
+ do
+ h = HASH (h, ' ');
+ while (--repetitions != 0);
+ ++p;
+ }
+ break;
+
+ case L'\r':
+ column = 0;
+ h = HASH (h, '\r');
+ ++p;
+ break;
+
+ default:
+ flag = 0;
+ column += wcwidth (wc);
+ if (ignore_case)
+ {
+ lo_wc = towlower (wc);
+ if (lo_wc != wc)
+ {
+ flag = 1;
+ p += mblength;
+ memset (&state_wc, '\0', sizeof (mbstate_t));
+ mblength = wcrtomb (mbc, lo_wc, &state_wc);
+
+ assert (mblength != (size_t) -1 &&
+ mblength != (size_t) -2);
+
+ mblength = mblength < 1 ? 1 : mblength;
+ }
+ }
+
+ if (!flag)
+ {
+ for (i = 0; i < mblength; i++)
+ mbc[i] = *p++;
+ }
+
+ for (i = 0; i < mblength; i++)
+ {
+ c = mbc[i];
+ h = HASH (h, c);
+ }
+ }
+ }
+ }
+ }
+ break;
+
+ default:
+ while (1)
+ {
+ if (*p == '\n')
+ {
+ ++p;
+ break;
+ }
+
+ MBC2WC (p, suffix_begin, mblength, wc, state, convfail);
+
+ if (convfail)
+ mbc[0] = *p++;
+ else
+ {
+ int flag = 0;
+
+ if (ignore_case)
+ {
+ lo_wc = towlower (wc);
+ if (lo_wc != wc)
+ {
+ flag = 1;
+ p += mblength;
+ memset (&state_wc, '\0', sizeof (mbstate_t));
+ mblength = wcrtomb (mbc, lo_wc, &state_wc);
+
+ assert (mblength != (size_t) -1 &&
+ mblength != (size_t) -2);
+
+ mblength = mblength < 1 ? 1 : mblength;
+ }
+ }
+
+ if (!flag)
+ {
+ for (i = 0; i < mblength; i++)
+ mbc[i] = *p++;
+ }
+ }
+
+ for (i = 0; i < mblength; i++)
+ {
+ c = mbc[i];
+ h = HASH (h, c);
+ }
+ }
+ }
+ goto hashing_done;
+ }
+#endif
/* Hash this line until we find a newline. */
if (ignore_case)
--- diffutils-2.8.7-cvs/src/side.c
+++ diffutils-2.8.7-cvs/src/side.c
@@ -73,11 +73,72 @@ print_half_line (char const *const *line
register size_t out_position = 0;
register char const *text_pointer = line[0];
register char const *text_limit = line[1];
+#if defined HAVE_WCHAR_H && defined HAVE_WCTYPE_H
+ unsigned char mbc[MB_LEN_MAX];
+ wchar_t wc;
+ mbstate_t state, state_bak;
+ size_t mbc_pos, mblength;
+ int mbc_loading_flag = 0;
+ int wc_width;
+
+ memset (&state, '\0', sizeof (mbstate_t));
+#endif
while (text_pointer < text_limit)
{
register unsigned char c = *text_pointer++;
+#if defined HAVE_WCHAR_H && defined HAVE_WCTYPE_H
+ if (MB_CUR_MAX > 1 && mbc_loading_flag)
+ {
+ mbc_loading_flag = 0;
+ state_bak = state;
+ mbc[mbc_pos++] = c;
+
+process_mbc:
+ mblength = mbrtowc (&wc, mbc, mbc_pos, &state);
+
+ switch (mblength)
+ {
+ case (size_t)-2: /* Incomplete multibyte character. */
+ mbc_loading_flag = 1;
+ state = state_bak;
+ break;
+
+ case (size_t)-1: /* Invalid as a multibyte character. */
+ if (in_position++ < out_bound)
+ {
+ out_position = in_position;
+ putc (mbc[0], out);
+ }
+ memmove (mbc, mbc + 1, --mbc_pos);
+ if (mbc_pos > 0)
+ {
+ mbc[mbc_pos] = '\0';
+ goto process_mbc;
+ }
+ break;
+
+ default:
+ wc_width = wcwidth (wc);
+ if (wc_width < 1) /* Unprintable multibyte character. */
+ {
+ if (in_position <= out_bound)
+ fprintf (out, "%lc", (wint_t)wc);
+ }
+ else /* Printable multibyte character. */
+ {
+ in_position += wc_width;
+ if (in_position <= out_bound)
+ {
+ out_position = in_position;
+ fprintf (out, "%lc", (wint_t)wc);
+ }
+ }
+ }
+ continue;
+ }
+#endif
switch (c)
{
case '\t':
@@ -135,8 +196,39 @@ print_half_line (char const *const *line
break;
default:
- if (! isprint (c))
- goto control_char;
+#if defined HAVE_WCHAR_H && defined HAVE_WCTYPE_H
+ if (MB_CUR_MAX > 1)
+ {
+ memset (mbc, '\0', MB_LEN_MAX);
+ mbc_pos = 0;
+ mbc[mbc_pos++] = c;
+ state_bak = state;
+
+ mblength = mbrtowc (&wc, mbc, mbc_pos, &state);
+
+ /* The value of mblength is always less than 2 here. */
+ switch (mblength)
+ {
+ case (size_t)-2: /* Incomplete multibyte character. */
+ state = state_bak;
+ mbc_loading_flag = 1;
+ continue;
+
+ case (size_t)-1: /* Invalid as a multibyte character. */
+ state = state_bak;
+ break;
+
+ default:
+ if (! iswprint (wc))
+ goto control_char;
+ }
+ }
+ else
+#endif
+ {
+ if (! isprint (c))
+ goto control_char;
+ }
/* falls through */
case ' ':
if (in_position++ < out_bound)
--- diffutils-2.8.7-cvs/src/util.c
+++ diffutils-2.8.7-cvs/src/util.c
@@ -317,7 +317,7 @@ finish_output (void)
Return nonzero if the lines differ. */
bool
-lines_differ (char const *s1, char const *s2)
+lines_differ_singlebyte (char const *s1, char const *s2)
{
register char const *t1 = s1;
register char const *t2 = s2;
@@ -446,6 +446,293 @@ lines_differ (char const *s1, char const
return true;
}
+
+#ifdef HANDLE_MULTIBYTE
+# define MBC2WC(T, END, MBLENGTH, WC, STATE, CONVFAIL) \
+do \
+{ \
+ mbstate_t bak = STATE; \
+ \
+ CONVFAIL = 0; \
+ MBLENGTH = mbrtowc (&WC, T, END - T, &STATE); \
+ \
+ switch (MBLENGTH) \
+ { \
+ case (size_t)-2: \
+ case (size_t)-1: \
+ STATE = bak; \
+ ++CONVFAIL; \
+ /* Fall through. */ \
+ case 0: \
+ MBLENGTH = 1; \
+ } \
+} \
+while (0)
+
+bool
+lines_differ_multibyte (char const *s1, char const *s2)
+{
+ unsigned char const *end1, *end2;
+ unsigned char c1, c2;
+ wchar_t wc1, wc2, wc1_bak, wc2_bak;
+ size_t mblen1, mblen2;
+ mbstate_t state1, state2, state1_bak, state2_bak;
+ int convfail1, convfail2, convfail1_bak, convfail2_bak;
+
+ unsigned char const *t1 = (unsigned char const *) s1;
+ unsigned char const *t2 = (unsigned char const *) s2;
+ unsigned char const *t1_bak, *t2_bak;
+ size_t column = 0;
+
+ if (ignore_white_space == IGNORE_NO_WHITE_SPACE && !ignore_case)
+ {
+ while (*t1 != '\n')
+ if (*t1++ != * t2++)
+ return 1;
+ return 0;
+ }
+
+ memset (&state1, '\0', sizeof (mbstate_t));
+ memset (&state2, '\0', sizeof (mbstate_t));
+
+ end1 = s1 + strlen (s1);
+ end2 = s2 + strlen (s2);
+
+ while (1)
+ {
+ c1 = *t1;
+ c2 = *t2;
+ MBC2WC (t1, end1, mblen1, wc1, state1, convfail1);
+ MBC2WC (t2, end2, mblen2, wc2, state2, convfail2);
+
+ /* Test for exact char equality first, since it's a common case. */
+ if (convfail1 ^ convfail2)
+ break;
+ else if (convfail1 && convfail2 && c1 != c2)
+ break;
+ else if (!convfail1 && !convfail2 && wc1 != wc2)
+ {
+ switch (ignore_white_space)
+ {
+ case IGNORE_ALL_SPACE:
+ /* For -w, just skip past any white space. */
+ while (1)
+ {
+ if (convfail1)
+ break;
+ else if (wc1 == L'\n' || !iswspace (wc1))
+ break;
+
+ t1 += mblen1;
+ c1 = *t1;
+ MBC2WC (t1, end1, mblen1, wc1, state1, convfail1);
+ }
+
+ while (1)
+ {
+ if (convfail2)
+ break;
+ else if (wc2 == L'\n' || !iswspace (wc2))
+ break;
+
+ t2 += mblen2;
+ c2 = *t2;
+ MBC2WC (t2, end2, mblen2, wc2, state2, convfail2);
+ }
+ t1 += mblen1;
+ t2 += mblen2;
+ break;
+
+ case IGNORE_SPACE_CHANGE:
+ /* For -b, advance past any sequence of white space in
+ line 1 and consider it just one space, or nothing at
+ all if it is at the end of the line. */
+ if (wc1 != L'\n' && iswspace (wc1))
+ {
+ size_t mblen_bak;
+ mbstate_t state_bak;
+
+ do
+ {
+ t1 += mblen1;
+ mblen_bak = mblen1;
+ state_bak = state1;
+ MBC2WC (t1, end1, mblen1, wc1, state1, convfail1);
+ }
+ while (!convfail1 && (wc1 != L'\n' && iswspace (wc1)));
+
+ state1 = state_bak;
+ mblen1 = mblen_bak;
+ t1 -= mblen1;
+ convfail1 = 0;
+ wc1 = L' ';
+ }
+
+ /* Likewise for line 2. */
+ if (wc2 != L'\n' && iswspace (wc2))
+ {
+ size_t mblen_bak;
+ mbstate_t state_bak;
+
+ do
+ {
+ t2 += mblen2;
+ mblen_bak = mblen2;
+ state_bak = state2;
+ MBC2WC (t2, end2, mblen2, wc2, state2, convfail2);
+ }
+ while (!convfail2 && (wc2 != L'\n' && iswspace (wc2)));
+
+ state2 = state_bak;
+ mblen2 = mblen_bak;
+ t2 -= mblen2;
+ convfail2 = 0;
+ wc2 = L' ';
+ }
+
+ if (wc1 != wc2)
+ {
+ if (wc2 == L' ' && wc1 != L'\n' &&
+ t1 > (unsigned char const *)s1 &&
+ !convfail1_bak && iswspace (wc1_bak))
+ {
+ t1 = t1_bak;
+ wc1 = wc1_bak;
+ state1 = state1_bak;
+ convfail1 = convfail1_bak;
+ continue;
+ }
+ if (wc1 == L' ' && wc2 != L'\n'
+ && t2 > (unsigned char const *)s2
+ && !convfail2_bak && iswspace (wc2_bak))
+ {
+ t2 = t2_bak;
+ wc2 = wc2_bak;
+ state2 = state2_bak;
+ convfail2 = convfail2_bak;
+ continue;
+ }
+ }
+
+ t1_bak = t1; t2_bak = t2;
+ wc1_bak = wc1; wc2_bak = wc2;
+ state1_bak = state1; state2_bak = state2;
+ convfail1_bak = convfail1; convfail2_bak = convfail2;
+
+ if (wc1 == L'\n')
+ wc1 = L' ';
+ else
+ t1 += mblen1;
+
+ if (wc2 == L'\n')
+ wc2 = L' ';
+ else
+ t2 += mblen2;
+
+ break;
+
+ case IGNORE_TAB_EXPANSION:
+ if ((wc1 == L' ' && wc2 == L'\t')
+ || (wc1 == L'\t' && wc2 == L' '))
+ {
+ size_t column2 = column;
+
+ while (1)
+ {
+ if (convfail1)
+ {
+ ++t1;
+ break;
+ }
+ else if (wc1 == L' ')
+ column++;
+ else if (wc1 == L'\t')
+ column += tabsize - column % tabsize;
+ else
+ {
+ t1 += mblen1;
+ break;
+ }
+
+ t1 += mblen1;
+ c1 = *t1;
+ MBC2WC (t1, end1, mblen1, wc1, state1, convfail1);
+ }
+
+ while (1)
+ {
+ if (convfail2)
+ {
+ ++t2;
+ break;
+ }
+ else if (wc2 == L' ')
+ column2++;
+ else if (wc2 == L'\t')
+ column2 += tabsize - column2 % tabsize;
+ else
+ {
+ t2 += mblen2;
+ break;
+ }
+
+ t2 += mblen2;
+ c2 = *t2;
+ MBC2WC (t2, end2, mblen2, wc2, state2, convfail2);
+ }
+
+ if (column != column2)
+ return 1;
+ }
+ else
+ {
+ t1 += mblen1;
+ t2 += mblen2;
+ }
+ break;
+
+ case IGNORE_NO_WHITE_SPACE:
+ t1 += mblen1;
+ t2 += mblen2;
+ break;
+ }
+
+ /* Lowercase all letters if -i is specified. */
+ if (ignore_case)
+ {
+ if (!convfail1)
+ wc1 = towlower (wc1);
+ if (!convfail2)
+ wc2 = towlower (wc2);
+ }
+
+ if (convfail1 ^ convfail2)
+ break;
+ else if (convfail1 && convfail2 && c1 != c2)
+ break;
+ else if (!convfail1 && !convfail2 && wc1 != wc2)
+ break;
+ }
+ else
+ {
+ t1_bak = t1; t2_bak = t2;
+ wc1_bak = wc1; wc2_bak = wc2;
+ state1_bak = state1; state2_bak = state2;
+ convfail1_bak = convfail1; convfail2_bak = convfail2;
+
+ t1 += mblen1; t2 += mblen2;
+ }
+
+ if (!convfail1 && wc1 == L'\n')
+ return 0;
+
+ column += convfail1 ? 1 :
+ (wc1 == L'\t') ? tabsize - column % tabsize : wcwidth (wc1);
+ }
+
+ return 1;
+}
+#endif
/* Find the consecutive changes at the start of the script START.
Return the last link before the first gap. */
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