/
coreutils-i18n.patch
4751 lines (4526 loc) · 144 KB
/
coreutils-i18n.patch
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diff -urNp coreutils-8.22-orig/lib/linebuffer.h coreutils-8.22/lib/linebuffer.h
--- coreutils-8.22-orig/lib/linebuffer.h 2013-12-04 15:53:33.000000000 +0100
+++ coreutils-8.22/lib/linebuffer.h 2014-01-08 13:55:56.106375471 +0100
@@ -21,6 +21,11 @@
# include <stdio.h>
+/* Get mbstate_t. */
+# if HAVE_WCHAR_H
+# include <wchar.h>
+# endif
+
/* A 'struct linebuffer' holds a line of text. */
struct linebuffer
@@ -28,6 +33,9 @@ struct linebuffer
size_t size; /* Allocated. */
size_t length; /* Used. */
char *buffer;
+# if HAVE_WCHAR_H
+ mbstate_t state;
+# endif
};
/* Initialize linebuffer LINEBUFFER for use. */
diff -urNp coreutils-8.22-orig/src/cut.c coreutils-8.22/src/cut.c
--- coreutils-8.22-orig/src/cut.c 2013-12-04 15:48:30.000000000 +0100
+++ coreutils-8.22/src/cut.c 2014-01-08 13:55:56.108375451 +0100
@@ -28,6 +28,11 @@
#include <assert.h>
#include <getopt.h>
#include <sys/types.h>
+
+/* Get mbstate_t, mbrtowc(). */
+#if HAVE_WCHAR_H
+# include <wchar.h>
+#endif
#include "system.h"
#include "error.h"
@@ -37,6 +42,18 @@
#include "quote.h"
#include "xstrndup.h"
+/* MB_LEN_MAX is incorrectly defined to be 1 in at least one GCC
+ installation; work around this configuration error. */
+#if !defined MB_LEN_MAX || MB_LEN_MAX < 2
+# undef MB_LEN_MAX
+# define MB_LEN_MAX 16
+#endif
+
+/* Some systems, like BeOS, have multibyte encodings but lack mbstate_t. */
+#if HAVE_MBRTOWC && defined mbstate_t
+# define mbrtowc(pwc, s, n, ps) (mbrtowc) (pwc, s, n, 0)
+#endif
+
/* The official name of this program (e.g., no 'g' prefix). */
#define PROGRAM_NAME "cut"
@@ -53,6 +70,52 @@
} \
while (0)
+/* Refill the buffer BUF to get a multibyte character. */
+#define REFILL_BUFFER(BUF, BUFPOS, BUFLEN, STREAM) \
+ do \
+ { \
+ if (BUFLEN < MB_LEN_MAX && !feof (STREAM) && !ferror (STREAM)) \
+ { \
+ memmove (BUF, BUFPOS, BUFLEN); \
+ BUFLEN += fread (BUF + BUFLEN, sizeof(char), BUFSIZ, STREAM); \
+ BUFPOS = BUF; \
+ } \
+ } \
+ while (0)
+
+/* Get wide character on BUFPOS. BUFPOS is not included after that.
+ If byte sequence is not valid as a character, CONVFAIL is true. Otherwise false. */
+#define GET_NEXT_WC_FROM_BUFFER(WC, BUFPOS, BUFLEN, MBLENGTH, STATE, CONVFAIL) \
+ do \
+ { \
+ mbstate_t state_bak; \
+ \
+ if (BUFLEN < 1) \
+ { \
+ WC = WEOF; \
+ break; \
+ } \
+ \
+ /* Get a wide character. */ \
+ CONVFAIL = false; \
+ state_bak = STATE; \
+ MBLENGTH = mbrtowc ((wchar_t *)&WC, BUFPOS, BUFLEN, &STATE); \
+ \
+ switch (MBLENGTH) \
+ { \
+ case (size_t)-1: \
+ case (size_t)-2: \
+ CONVFAIL = true; \
+ STATE = state_bak; \
+ /* Fall througn. */ \
+ \
+ case 0: \
+ MBLENGTH = 1; \
+ break; \
+ } \
+ } \
+ while (0)
+
struct range_pair
{
@@ -75,6 +138,8 @@ static size_t n_rp;
/* Number of `struct range_pair's allocated. */
static size_t n_rp_allocated;
+/* Length of the delimiter given as argument to -d. */
+size_t delimlen;
/* Append LOW, HIGH to the list RP of range pairs, allocating additional
space if necessary. Update global variable N_RP. When allocating,
@@ -106,15 +171,25 @@ enum operating_mode
{
undefined_mode,
- /* Output characters that are in the given bytes. */
+ /* Output bytes that are at the given positions. */
byte_mode,
+ /* Output characters that are at the given positions. */
+ character_mode,
+
/* Output the given delimeter-separated fields. */
field_mode
};
static enum operating_mode operating_mode;
+/* If nonzero, when in byte mode, don't split multibyte characters. */
+static int byte_mode_character_aware;
+
+/* If nonzero, the function for single byte locale is work
+ if this program runs on multibyte locale. */
+static int force_singlebyte_mode;
+
/* If true do not output lines containing no delimeter characters.
Otherwise, all such lines are printed. This option is valid only
with field mode. */
@@ -126,6 +201,9 @@ static bool complement;
/* The delimeter character for field mode. */
static unsigned char delim;
+#if HAVE_WCHAR_H
+static wchar_t wcdelim;
+#endif
/* True if the --output-delimiter=STRING option was specified. */
static bool output_delimiter_specified;
@@ -188,7 +266,7 @@ Print selected parts of lines from each
-f, --fields=LIST select only these fields; also print any line\n\
that contains no delimiter character, unless\n\
the -s option is specified\n\
- -n (ignored)\n\
+ -n with -b: don't split multibyte characters\n\
"), stdout);
fputs (_("\
--complement complement the set of selected bytes, characters\n\
@@ -381,6 +459,9 @@ set_fields (const char *fieldstr)
if (operating_mode == byte_mode)
error (0, 0,
_("byte offset %s is too large"), quote (bad_num));
+ else if (operating_mode == character_mode)
+ error (0, 0,
+ _("character offset %s is too large"), quote (bad_num));
else
error (0, 0,
_("field number %s is too large"), quote (bad_num));
@@ -505,6 +586,82 @@ cut_bytes (FILE *stream)
}
}
+#if HAVE_MBRTOWC
+/* This function is in use for the following case.
+
+ 1. Read from the stream STREAM, printing to standard output any selected
+ characters.
+
+ 2. Read from stream STREAM, printing to standard output any selected bytes,
+ without splitting multibyte characters. */
+
+static void
+cut_characters_or_cut_bytes_no_split (FILE *stream)
+{
+ size_t idx; /* number of bytes or characters in the line so far. */
+ char buf[MB_LEN_MAX + BUFSIZ]; /* For spooling a read byte sequence. */
+ char *bufpos; /* Next read position of BUF. */
+ size_t buflen; /* The length of the byte sequence in buf. */
+ wint_t wc; /* A gotten wide character. */
+ size_t mblength; /* The byte size of a multibyte character which shows
+ as same character as WC. */
+ mbstate_t state; /* State of the stream. */
+ bool convfail = false; /* true, when conversion failed. Otherwise false. */
+ /* Whether to begin printing delimiters between ranges for the current line.
+ Set after we've begun printing data corresponding to the first range. */
+ bool print_delimiter = false;
+
+ idx = 0;
+ buflen = 0;
+ bufpos = buf;
+ memset (&state, '\0', sizeof(mbstate_t));
+
+ current_rp = rp;
+
+ while (1)
+ {
+ REFILL_BUFFER (buf, bufpos, buflen, stream);
+
+ GET_NEXT_WC_FROM_BUFFER (wc, bufpos, buflen, mblength, state, convfail);
+ (void) convfail; /* ignore unused */
+
+ if (wc == WEOF)
+ {
+ if (idx > 0)
+ putchar ('\n');
+ break;
+ }
+ else if (wc == L'\n')
+ {
+ putchar ('\n');
+ idx = 0;
+ print_delimiter = false;
+ current_rp = rp;
+ }
+ else
+ {
+ next_item (&idx);
+ if (print_kth (idx))
+ {
+ if (output_delimiter_specified)
+ {
+ if (print_delimiter && is_range_start_index (idx))
+ {
+ fwrite (output_delimiter_string, sizeof (char),
+ output_delimiter_length, stdout);
+ }
+ print_delimiter = true;
+ }
+ fwrite (bufpos, mblength, sizeof(char), stdout);
+ }
+ }
+
+ buflen -= mblength;
+ bufpos += mblength;
+ }
+}
+#endif
+
/* Read from stream STREAM, printing to standard output any selected fields. */
static void
@@ -629,13 +786,211 @@ cut_fields (FILE *stream)
}
}
+#if HAVE_MBRTOWC
+static void
+cut_fields_mb (FILE *stream)
+{
+ int c;
+ size_t field_idx;
+ int found_any_selected_field;
+ int buffer_first_field;
+ int empty_input;
+ char buf[MB_LEN_MAX + BUFSIZ]; /* For spooling a read byte sequence. */
+ char *bufpos; /* Next read position of BUF. */
+ size_t buflen; /* The length of the byte sequence in buf. */
+ wint_t wc = 0; /* A gotten wide character. */
+ size_t mblength; /* The byte size of a multibyte character which shows
+ as same character as WC. */
+ mbstate_t state; /* State of the stream. */
+ bool convfail = false; /* true, when conversion failed. Otherwise false. */
+
+ current_rp = rp;
+
+ found_any_selected_field = 0;
+ field_idx = 1;
+ bufpos = buf;
+ buflen = 0;
+ memset (&state, '\0', sizeof(mbstate_t));
+
+ c = getc (stream);
+ empty_input = (c == EOF);
+ if (c != EOF)
+ {
+ ungetc (c, stream);
+ wc = 0;
+ }
+ else
+ wc = WEOF;
+
+ /* To support the semantics of the -s flag, we may have to buffer
+ all of the first field to determine whether it is `delimited.'
+ But that is unnecessary if all non-delimited lines must be printed
+ and the first field has been selected, or if non-delimited lines
+ must be suppressed and the first field has *not* been selected.
+ That is because a non-delimited line has exactly one field. */
+ buffer_first_field = (suppress_non_delimited ^ !print_kth (1));
+
+ while (1)
+ {
+ if (field_idx == 1 && buffer_first_field)
+ {
+ int len = 0;
+
+ while (1)
+ {
+ REFILL_BUFFER (buf, bufpos, buflen, stream);
+
+ GET_NEXT_WC_FROM_BUFFER
+ (wc, bufpos, buflen, mblength, state, convfail);
+
+ if (wc == WEOF)
+ break;
+
+ field_1_buffer = xrealloc (field_1_buffer, len + mblength);
+ memcpy (field_1_buffer + len, bufpos, mblength);
+ len += mblength;
+ buflen -= mblength;
+ bufpos += mblength;
+
+ if (!convfail && (wc == L'\n' || wc == wcdelim))
+ break;
+ }
+
+ if (len <= 0 && wc == WEOF)
+ break;
+
+ /* If the first field extends to the end of line (it is not
+ delimited) and we are printing all non-delimited lines,
+ print this one. */
+ if (convfail || (!convfail && wc != wcdelim))
+ {
+ if (suppress_non_delimited)
+ {
+ /* Empty. */
+ }
+ else
+ {
+ fwrite (field_1_buffer, sizeof (char), len, stdout);
+ /* Make sure the output line is newline terminated. */
+ if (convfail || (!convfail && wc != L'\n'))
+ putchar ('\n');
+ }
+ continue;
+ }
+
+ if (print_kth (1))
+ {
+ /* Print the field, but not the trailing delimiter. */
+ fwrite (field_1_buffer, sizeof (char), len - 1, stdout);
+ found_any_selected_field = 1;
+ }
+ next_item (&field_idx);
+ }
+
+ if (wc != WEOF)
+ {
+ if (print_kth (field_idx))
+ {
+ if (found_any_selected_field)
+ {
+ fwrite (output_delimiter_string, sizeof (char),
+ output_delimiter_length, stdout);
+ }
+ found_any_selected_field = 1;
+ }
+
+ while (1)
+ {
+ REFILL_BUFFER (buf, bufpos, buflen, stream);
+
+ GET_NEXT_WC_FROM_BUFFER
+ (wc, bufpos, buflen, mblength, state, convfail);
+
+ if (wc == WEOF)
+ break;
+ else if (!convfail && (wc == wcdelim || wc == L'\n'))
+ {
+ buflen -= mblength;
+ bufpos += mblength;
+ break;
+ }
+
+ if (print_kth (field_idx))
+ fwrite (bufpos, mblength, sizeof(char), stdout);
+
+ buflen -= mblength;
+ bufpos += mblength;
+ }
+ }
+
+ if ((!convfail || wc == L'\n') && buflen < 1)
+ wc = WEOF;
+
+ if (!convfail && wc == wcdelim)
+ next_item (&field_idx);
+ else if (wc == WEOF || (!convfail && wc == L'\n'))
+ {
+ if (found_any_selected_field
+ || (!empty_input && !(suppress_non_delimited && field_idx == 1)))
+ putchar ('\n');
+ if (wc == WEOF)
+ break;
+ field_idx = 1;
+ current_rp = rp;
+ found_any_selected_field = 0;
+ }
+ }
+}
+#endif
+
static void
cut_stream (FILE *stream)
{
- if (operating_mode == byte_mode)
- cut_bytes (stream);
+#if HAVE_MBRTOWC
+ if (MB_CUR_MAX > 1 && !force_singlebyte_mode)
+ {
+ switch (operating_mode)
+ {
+ case byte_mode:
+ if (byte_mode_character_aware)
+ cut_characters_or_cut_bytes_no_split (stream);
+ else
+ cut_bytes (stream);
+ break;
+
+ case character_mode:
+ cut_characters_or_cut_bytes_no_split (stream);
+ break;
+
+ case field_mode:
+ if (delimlen == 1)
+ {
+ /* Check if we have utf8 multibyte locale, so we can use this
+ optimization because of uniqueness of characters, which is
+ not true for e.g. SJIS */
+ char * loc = setlocale(LC_CTYPE, NULL);
+ if (loc && (strstr (loc, "UTF-8") || strstr (loc, "utf-8") ||
+ strstr (loc, "UTF8") || strstr (loc, "utf8")))
+ {
+ cut_fields (stream);
+ break;
+ }
+ }
+ cut_fields_mb (stream);
+ break;
+
+ default:
+ abort ();
+ }
+ }
else
- cut_fields (stream);
+#endif
+ {
+ if (operating_mode == field_mode)
+ cut_fields (stream);
+ else
+ cut_bytes (stream);
+ }
}
/* Process file FILE to standard output.
@@ -687,6 +1042,7 @@ main (int argc, char **argv)
bool ok;
bool delim_specified = false;
char *spec_list_string IF_LINT ( = NULL);
+ char mbdelim[MB_LEN_MAX + 1];
initialize_main (&argc, &argv);
set_program_name (argv[0]);
@@ -709,7 +1065,6 @@ main (int argc, char **argv)
switch (optc)
{
case 'b':
- case 'c':
/* Build the byte list. */
if (operating_mode != undefined_mode)
FATAL_ERROR (_("only one type of list may be specified"));
@@ -717,6 +1072,14 @@ main (int argc, char **argv)
spec_list_string = optarg;
break;
+ case 'c':
+ /* Build the character list. */
+ if (operating_mode != undefined_mode)
+ FATAL_ERROR (_("only one type of list may be specified"));
+ operating_mode = character_mode;
+ spec_list_string = optarg;
+ break;
+
case 'f':
/* Build the field list. */
if (operating_mode != undefined_mode)
@@ -728,10 +1091,38 @@ main (int argc, char **argv)
case 'd':
/* New delimiter. */
/* Interpret -d '' to mean 'use the NUL byte as the delimiter.' */
- if (optarg[0] != '\0' && optarg[1] != '\0')
- FATAL_ERROR (_("the delimiter must be a single character"));
- delim = optarg[0];
- delim_specified = true;
+ {
+#if HAVE_MBRTOWC
+ if(MB_CUR_MAX > 1)
+ {
+ mbstate_t state;
+
+ memset (&state, '\0', sizeof(mbstate_t));
+ delimlen = mbrtowc (&wcdelim, optarg, strnlen(optarg, MB_LEN_MAX), &state);
+
+ if (delimlen == (size_t)-1 || delimlen == (size_t)-2)
+ ++force_singlebyte_mode;
+ else
+ {
+ delimlen = (delimlen < 1) ? 1 : delimlen;
+ if (wcdelim != L'\0' && *(optarg + delimlen) != '\0')
+ FATAL_ERROR (_("the delimiter must be a single character"));
+ memcpy (mbdelim, optarg, delimlen);
+ mbdelim[delimlen] = '\0';
+ if (delimlen == 1)
+ delim = *optarg;
+ }
+ }
+
+ if (MB_CUR_MAX <= 1 || force_singlebyte_mode)
+#endif
+ {
+ if (optarg[0] != '\0' && optarg[1] != '\0')
+ FATAL_ERROR (_("the delimiter must be a single character"));
+ delim = (unsigned char) optarg[0];
+ }
+ delim_specified = true;
+ }
break;
case OUTPUT_DELIMITER_OPTION:
@@ -744,6 +1135,7 @@ main (int argc, char **argv)
break;
case 'n':
+ byte_mode_character_aware = 1;
break;
case 's':
@@ -783,15 +1175,34 @@ main (int argc, char **argv)
}
if (!delim_specified)
- delim = '\t';
+ {
+ delim = '\t';
+#ifdef HAVE_MBRTOWC
+ wcdelim = L'\t';
+ mbdelim[0] = '\t';
+ mbdelim[1] = '\0';
+ delimlen = 1;
+#endif
+ }
if (output_delimiter_string == NULL)
{
- static char dummy[2];
- dummy[0] = delim;
- dummy[1] = '\0';
- output_delimiter_string = dummy;
- output_delimiter_length = 1;
+#ifdef HAVE_MBRTOWC
+ if (MB_CUR_MAX > 1 && !force_singlebyte_mode)
+ {
+ output_delimiter_string = xstrdup(mbdelim);
+ output_delimiter_length = delimlen;
+ }
+
+ if (MB_CUR_MAX <= 1 || force_singlebyte_mode)
+#endif
+ {
+ static char dummy[2];
+ dummy[0] = delim;
+ dummy[1] = '\0';
+ output_delimiter_string = dummy;
+ output_delimiter_length = 1;
+ }
}
if (optind == argc)
diff -urNp coreutils-8.22-orig/src/expand.c coreutils-8.22/src/expand.c
--- coreutils-8.22-orig/src/expand.c 2013-12-04 15:48:30.000000000 +0100
+++ coreutils-8.22/src/expand.c 2014-01-08 13:55:56.110375431 +0100
@@ -37,12 +37,34 @@
#include <stdio.h>
#include <getopt.h>
#include <sys/types.h>
+
+/* Get mbstate_t, mbrtowc(), wcwidth(). */
+#if HAVE_WCHAR_H
+# include <wchar.h>
+#endif
+
+/* Get iswblank(). */
+#if HAVE_WCTYPE_H
+# include <wctype.h>
+#endif
+
#include "system.h"
#include "error.h"
#include "fadvise.h"
#include "quote.h"
#include "xstrndup.h"
+/* MB_LEN_MAX is incorrectly defined to be 1 in at least one GCC
+ installation; work around this configuration error. */
+#if !defined MB_LEN_MAX || MB_LEN_MAX < 2
+# define MB_LEN_MAX 16
+#endif
+
+/* Some systems, like BeOS, have multibyte encodings but lack mbstate_t. */
+#if HAVE_MBRTOWC && defined mbstate_t
+# define mbrtowc(pwc, s, n, ps) (mbrtowc) (pwc, s, n, 0)
+#endif
+
/* The official name of this program (e.g., no 'g' prefix). */
#define PROGRAM_NAME "expand"
@@ -357,6 +379,142 @@ expand (void)
}
}
+#if HAVE_MBRTOWC
+static void
+expand_multibyte (void)
+{
+ FILE *fp; /* Input strem. */
+ mbstate_t i_state; /* Current shift state of the input stream. */
+ mbstate_t i_state_bak; /* Back up the I_STATE. */
+ mbstate_t o_state; /* Current shift state of the output stream. */
+ char buf[MB_LEN_MAX + BUFSIZ]; /* For spooling a read byte sequence. */
+ char *bufpos = buf; /* Next read position of BUF. */
+ size_t buflen = 0; /* The length of the byte sequence in buf. */
+ wchar_t wc; /* A gotten wide character. */
+ size_t mblength; /* The byte size of a multibyte character
+ which shows as same character as WC. */
+ int tab_index = 0; /* Index in `tab_list' of next tabstop. */
+ int column = 0; /* Column on screen of the next char. */
+ int next_tab_column; /* Column the next tab stop is on. */
+ int convert = 1; /* If nonzero, perform translations. */
+
+ fp = next_file ((FILE *) NULL);
+ if (fp == NULL)
+ return;
+
+ memset (&o_state, '\0', sizeof(mbstate_t));
+ memset (&i_state, '\0', sizeof(mbstate_t));
+
+ for (;;)
+ {
+ /* Refill the buffer BUF. */
+ if (buflen < MB_LEN_MAX && !feof(fp) && !ferror(fp))
+ {
+ memmove (buf, bufpos, buflen);
+ buflen += fread (buf + buflen, sizeof(char), BUFSIZ, fp);
+ bufpos = buf;
+ }
+
+ /* No character is left in BUF. */
+ if (buflen < 1)
+ {
+ fp = next_file (fp);
+
+ if (fp == NULL)
+ break; /* No more files. */
+ else
+ {
+ memset (&i_state, '\0', sizeof(mbstate_t));
+ continue;
+ }
+ }
+
+ /* Get a wide character. */
+ i_state_bak = i_state;
+ mblength = mbrtowc (&wc, bufpos, buflen, &i_state);
+
+ switch (mblength)
+ {
+ case (size_t)-1: /* illegal byte sequence. */
+ case (size_t)-2:
+ mblength = 1;
+ i_state = i_state_bak;
+ if (convert)
+ {
+ ++column;
+ if (convert_entire_line == 0 && !isblank(*bufpos))
+ convert = 0;
+ }
+ putchar (*bufpos);
+ break;
+
+ case 0: /* null. */
+ mblength = 1;
+ if (convert && convert_entire_line == 0)
+ convert = 0;
+ putchar ('\0');
+ break;
+
+ default:
+ if (wc == L'\n') /* LF. */
+ {
+ tab_index = 0;
+ column = 0;
+ convert = 1;
+ putchar ('\n');
+ }
+ else if (wc == L'\t' && convert) /* Tab. */
+ {
+ if (tab_size == 0)
+ {
+ /* Do not let tab_index == first_free_tab;
+ stop when it is 1 less. */
+ while (tab_index < first_free_tab - 1
+ && column >= tab_list[tab_index])
+ tab_index++;
+ next_tab_column = tab_list[tab_index];
+ if (tab_index < first_free_tab - 1)
+ tab_index++;
+ if (column >= next_tab_column)
+ next_tab_column = column + 1;
+ }
+ else
+ next_tab_column = column + tab_size - column % tab_size;
+
+ while (column < next_tab_column)
+ {
+ putchar (' ');
+ ++column;
+ }
+ }
+ else /* Others. */
+ {
+ if (convert)
+ {
+ if (wc == L'\b')
+ {
+ if (column > 0)
+ --column;
+ }
+ else
+ {
+ int width; /* The width of WC. */
+
+ width = wcwidth (wc);
+ column += (width > 0) ? width : 0;
+ if (convert_entire_line == 0 && !iswblank(wc))
+ convert = 0;
+ }
+ }
+ fwrite (bufpos, sizeof(char), mblength, stdout);
+ }
+ }
+ buflen -= mblength;
+ bufpos += mblength;
+ }
+}
+#endif
+
int
main (int argc, char **argv)
{
@@ -421,7 +579,12 @@ main (int argc, char **argv)
file_list = (optind < argc ? &argv[optind] : stdin_argv);
- expand ();
+#if HAVE_MBRTOWC
+ if (MB_CUR_MAX > 1)
+ expand_multibyte ();
+ else
+#endif
+ expand ();
if (have_read_stdin && fclose (stdin) != 0)
error (EXIT_FAILURE, errno, "-");
diff -urNp coreutils-8.22-orig/src/fold.c coreutils-8.22/src/fold.c
--- coreutils-8.22-orig/src/fold.c 2013-12-04 15:48:30.000000000 +0100
+++ coreutils-8.22/src/fold.c 2014-01-08 13:55:56.111375421 +0100
@@ -22,12 +22,34 @@
#include <getopt.h>
#include <sys/types.h>
+/* Get mbstate_t, mbrtowc(), wcwidth(). */
+#if HAVE_WCHAR_H
+# include <wchar.h>
+#endif
+
+/* Get iswprint(), iswblank(), wcwidth(). */
+#if HAVE_WCTYPE_H
+# include <wctype.h>
+#endif
+
#include "system.h"
#include "error.h"
#include "fadvise.h"
#include "quote.h"
#include "xstrtol.h"
+/* MB_LEN_MAX is incorrectly defined to be 1 in at least one GCC
+ installation; work around this configuration error. */
+#if !defined MB_LEN_MAX || MB_LEN_MAX < 2
+# undef MB_LEN_MAX
+# define MB_LEN_MAX 16
+#endif
+
+/* Some systems, like BeOS, have multibyte encodings but lack mbstate_t. */
+#if HAVE_MBRTOWC && defined mbstate_t
+# define mbrtowc(pwc, s, n, ps) (mbrtowc) (pwc, s, n, 0)
+#endif
+
#define TAB_WIDTH 8
/* The official name of this program (e.g., no 'g' prefix). */
@@ -35,20 +57,41 @@
#define AUTHORS proper_name ("David MacKenzie")
+#define FATAL_ERROR(Message) \
+ do \
+ { \
+ error (0, 0, (Message)); \
+ usage (2); \
+ } \
+ while (0)
+
+enum operating_mode
+{
+ /* Fold texts by columns that are at the given positions. */
+ column_mode,
+
+ /* Fold texts by bytes that are at the given positions. */
+ byte_mode,
+
+ /* Fold texts by characters that are at the given positions. */
+ character_mode,
+};
+
+/* The argument shows current mode. (Default: column_mode) */
+static enum operating_mode operating_mode;
+
/* If nonzero, try to break on whitespace. */
static bool break_spaces;
-/* If nonzero, count bytes, not column positions. */
-static bool count_bytes;
-
/* If nonzero, at least one of the files we read was standard input. */
static bool have_read_stdin;
-static char const shortopts[] = "bsw:0::1::2::3::4::5::6::7::8::9::";
+static char const shortopts[] = "bcsw:0::1::2::3::4::5::6::7::8::9::";
static struct option const longopts[] =
{
{"bytes", no_argument, NULL, 'b'},
+ {"characters", no_argument, NULL, 'c'},
{"spaces", no_argument, NULL, 's'},
{"width", required_argument, NULL, 'w'},
{GETOPT_HELP_OPTION_DECL},
@@ -76,6 +119,7 @@ standard output.\n\
fputs (_("\
-b, --bytes count bytes rather than columns\n\
+ -c, --characters count characters rather than columns\n\
-s, --spaces break at spaces\n\
-w, --width=WIDTH use WIDTH columns instead of 80\n\
"), stdout);
@@ -93,7 +137,7 @@ standard output.\n\
static size_t
adjust_column (size_t column, char c)
{
- if (!count_bytes)
+ if (operating_mode != byte_mode)
{
if (c == '\b')
{
@@ -116,30 +160,14 @@ adjust_column (size_t column, char c)
to stdout, with maximum line length WIDTH.
Return true if successful. */
-static bool
-fold_file (char const *filename, size_t width)
+static void
+fold_text (FILE *istream, size_t width, int *saved_errno)
{
- FILE *istream;
int c;
size_t column = 0; /* Screen column where next char will go. */
size_t offset_out = 0; /* Index in 'line_out' for next char. */
static char *line_out = NULL;
static size_t allocated_out = 0;
- int saved_errno;
-
- if (STREQ (filename, "-"))
- {
- istream = stdin;
- have_read_stdin = true;
- }
- else
- istream = fopen (filename, "r");
-
- if (istream == NULL)
- {
- error (0, errno, "%s", filename);
- return false;
- }
fadvise (istream, FADVISE_SEQUENTIAL);
@@ -169,6 +197,15 @@ fold_file (char const *filename, size_t
bool found_blank = false;
size_t logical_end = offset_out;
+ /* If LINE_OUT has no wide character,
+ put a new wide character in LINE_OUT
+ if column is bigger than width. */
+ if (offset_out == 0)
+ {
+ line_out[offset_out++] = c;
+ continue;
+ }
+
/* Look for the last blank. */
while (logical_end)
{
@@ -215,11 +252,221 @@ fold_file (char const *filename, size_t
line_out[offset_out++] = c;
}
- saved_errno = errno;
+ *saved_errno = errno;
if (offset_out)
fwrite (line_out, sizeof (char), (size_t) offset_out, stdout);
+}
+
+#if HAVE_MBRTOWC
+static void
+fold_multibyte_text (FILE *istream, size_t width, int *saved_errno)
+{
+ char buf[MB_LEN_MAX + BUFSIZ]; /* For spooling a read byte sequence. */
+ size_t buflen = 0; /* The length of the byte sequence in buf. */
+ char *bufpos = buf; /* Next read position of BUF. */
+ wint_t wc; /* A gotten wide character. */
+ size_t mblength; /* The byte size of a multibyte character which shows
+ as same character as WC. */
+ mbstate_t state, state_bak; /* State of the stream. */
+ int convfail = 0; /* 1, when conversion is failed. Otherwise 0. */
+
+ static char *line_out = NULL;
+ size_t offset_out = 0; /* Index in `line_out' for next char. */
+ static size_t allocated_out = 0;
+
+ int increment;
+ size_t column = 0;
+
+ size_t last_blank_pos;
+ size_t last_blank_column;
+ int is_blank_seen;
+ int last_blank_increment = 0;
+ int is_bs_following_last_blank;
+ size_t bs_following_last_blank_num;
+ int is_cr_after_last_blank;
+
+#define CLEAR_FLAGS \
+ do \
+ { \
+ last_blank_pos = 0; \
+ last_blank_column = 0; \
+ is_blank_seen = 0; \
+ is_bs_following_last_blank = 0; \
+ bs_following_last_blank_num = 0; \
+ is_cr_after_last_blank = 0; \
+ } \
+ while (0)
+
+#define START_NEW_LINE \
+ do \
+ { \
+ putchar ('\n'); \
+ column = 0; \