565 lines
19 KiB
Diff
565 lines
19 KiB
Diff
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diff -urNp coreutils-8.25-orig/src/cut.c coreutils-8.25/src/cut.c
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--- coreutils-8.25-orig/src/cut.c 2015-06-26 19:05:22.000000000 +0200
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+++ coreutils-8.25/src/cut.c 2015-07-05 09:04:33.028546950 +0200
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@@ -28,6 +28,11 @@
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#include <assert.h>
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#include <getopt.h>
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#include <sys/types.h>
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+
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+/* Get mbstate_t, mbrtowc(). */
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+#if HAVE_WCHAR_H
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+# include <wchar.h>
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+#endif
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#include "system.h"
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#include "error.h"
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@@ -38,6 +43,18 @@
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#include "set-fields.h"
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+/* MB_LEN_MAX is incorrectly defined to be 1 in at least one GCC
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+ installation; work around this configuration error. */
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+#if !defined MB_LEN_MAX || MB_LEN_MAX < 2
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+# undef MB_LEN_MAX
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+# define MB_LEN_MAX 16
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+#endif
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+
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+/* Some systems, like BeOS, have multibyte encodings but lack mbstate_t. */
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+#if HAVE_MBRTOWC && defined mbstate_t
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+# define mbrtowc(pwc, s, n, ps) (mbrtowc) (pwc, s, n, 0)
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+#endif
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+
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/* The official name of this program (e.g., no 'g' prefix). */
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#define PROGRAM_NAME "cut"
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@@ -54,6 +71,52 @@
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} \
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while (0)
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+/* Refill the buffer BUF to get a multibyte character. */
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+#define REFILL_BUFFER(BUF, BUFPOS, BUFLEN, STREAM) \
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+ do \
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+ { \
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+ if (BUFLEN < MB_LEN_MAX && !feof (STREAM) && !ferror (STREAM)) \
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+ { \
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+ memmove (BUF, BUFPOS, BUFLEN); \
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+ BUFLEN += fread (BUF + BUFLEN, sizeof(char), BUFSIZ, STREAM); \
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+ BUFPOS = BUF; \
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+ } \
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+ } \
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+ while (0)
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+
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+/* Get wide character on BUFPOS. BUFPOS is not included after that.
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+ If byte sequence is not valid as a character, CONVFAIL is true. Otherwise false. */
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+#define GET_NEXT_WC_FROM_BUFFER(WC, BUFPOS, BUFLEN, MBLENGTH, STATE, CONVFAIL) \
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+ do \
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+ { \
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+ mbstate_t state_bak; \
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+ \
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+ if (BUFLEN < 1) \
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+ { \
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+ WC = WEOF; \
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+ break; \
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+ } \
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+ \
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+ /* Get a wide character. */ \
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+ CONVFAIL = false; \
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+ state_bak = STATE; \
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+ MBLENGTH = mbrtowc ((wchar_t *)&WC, BUFPOS, BUFLEN, &STATE); \
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+ \
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+ switch (MBLENGTH) \
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+ { \
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+ case (size_t)-1: \
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+ case (size_t)-2: \
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+ CONVFAIL = true; \
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+ STATE = state_bak; \
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+ /* Fall througn. */ \
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+ \
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+ case 0: \
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+ MBLENGTH = 1; \
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+ break; \
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+ } \
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+ } \
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+ while (0)
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+
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/* Pointer inside RP. When checking if a byte or field is selected
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by a finite range, we check if it is between CURRENT_RP.LO
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@@ -61,6 +124,9 @@
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CURRENT_RP.HI then we make CURRENT_RP to point to the next range pair. */
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static struct field_range_pair *current_rp;
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+/* Length of the delimiter given as argument to -d. */
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+size_t delimlen;
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+
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/* This buffer is used to support the semantics of the -s option
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(or lack of same) when the specified field list includes (does
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not include) the first field. In both of those cases, the entire
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@@ -77,15 +143,25 @@ enum operating_mode
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{
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undefined_mode,
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- /* Output characters that are in the given bytes. */
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+ /* Output bytes that are at the given positions. */
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byte_mode,
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+ /* Output characters that are at the given positions. */
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+ character_mode,
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+
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/* Output the given delimiter-separated fields. */
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field_mode
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};
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static enum operating_mode operating_mode;
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+/* If nonzero, when in byte mode, don't split multibyte characters. */
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+static int byte_mode_character_aware;
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+
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+/* If nonzero, the function for single byte locale is work
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+ if this program runs on multibyte locale. */
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+static int force_singlebyte_mode;
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+
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/* If true do not output lines containing no delimiter characters.
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Otherwise, all such lines are printed. This option is valid only
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with field mode. */
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@@ -97,6 +173,9 @@ static bool complement;
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/* The delimiter character for field mode. */
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static unsigned char delim;
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+#if HAVE_WCHAR_H
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+static wchar_t wcdelim;
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+#endif
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/* The delimiter for each line/record. */
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static unsigned char line_delim = '\n';
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@@ -164,7 +243,7 @@ Print selected parts of lines from each
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-f, --fields=LIST select only these fields; also print any line\n\
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that contains no delimiter character, unless\n\
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the -s option is specified\n\
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- -n (ignored)\n\
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+ -n with -b: don't split multibyte characters\n\
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"), stdout);
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fputs (_("\
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--complement complement the set of selected bytes, characters\n\
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@@ -280,6 +359,82 @@ cut_bytes (FILE *stream)
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}
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}
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+#if HAVE_MBRTOWC
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+/* This function is in use for the following case.
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+
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+ 1. Read from the stream STREAM, printing to standard output any selected
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+ characters.
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+
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+ 2. Read from stream STREAM, printing to standard output any selected bytes,
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+ without splitting multibyte characters. */
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+
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+static void
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+cut_characters_or_cut_bytes_no_split (FILE *stream)
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+{
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+ size_t idx; /* number of bytes or characters in the line so far. */
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+ char buf[MB_LEN_MAX + BUFSIZ]; /* For spooling a read byte sequence. */
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+ char *bufpos; /* Next read position of BUF. */
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+ size_t buflen; /* The length of the byte sequence in buf. */
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+ wint_t wc; /* A gotten wide character. */
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+ size_t mblength; /* The byte size of a multibyte character which shows
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+ as same character as WC. */
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+ mbstate_t state; /* State of the stream. */
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+ bool convfail = false; /* true, when conversion failed. Otherwise false. */
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+ /* Whether to begin printing delimiters between ranges for the current line.
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+ Set after we've begun printing data corresponding to the first range. */
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+ bool print_delimiter = false;
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+
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+ idx = 0;
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+ buflen = 0;
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+ bufpos = buf;
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+ memset (&state, '\0', sizeof(mbstate_t));
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+
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+ current_rp = frp;
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+
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+ while (1)
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+ {
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+ REFILL_BUFFER (buf, bufpos, buflen, stream);
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+
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+ GET_NEXT_WC_FROM_BUFFER (wc, bufpos, buflen, mblength, state, convfail);
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+ (void) convfail; /* ignore unused */
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+
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+ if (wc == WEOF)
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+ {
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+ if (idx > 0)
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+ putchar (line_delim);
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+ break;
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+ }
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+ else if (wc == line_delim)
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+ {
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+ putchar (line_delim);
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+ idx = 0;
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+ print_delimiter = false;
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+ current_rp = frp;
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+ }
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+ else
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+ {
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+ next_item (&idx);
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+ if (print_kth (idx))
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+ {
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+ if (output_delimiter_specified)
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+ {
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+ if (print_delimiter && is_range_start_index (idx))
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+ {
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+ fwrite (output_delimiter_string, sizeof (char),
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+ output_delimiter_length, stdout);
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+ }
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+ print_delimiter = true;
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+ }
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+ fwrite (bufpos, mblength, sizeof(char), stdout);
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+ }
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+ }
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+
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+ buflen -= mblength;
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+ bufpos += mblength;
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+ }
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+}
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+#endif
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+
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/* Read from stream STREAM, printing to standard output any selected fields. */
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static void
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@@ -425,13 +580,211 @@ cut_fields (FILE *stream)
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}
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}
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+#if HAVE_MBRTOWC
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+static void
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+cut_fields_mb (FILE *stream)
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+{
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+ int c;
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+ size_t field_idx;
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+ int found_any_selected_field;
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+ int buffer_first_field;
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+ int empty_input;
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+ char buf[MB_LEN_MAX + BUFSIZ]; /* For spooling a read byte sequence. */
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+ char *bufpos; /* Next read position of BUF. */
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+ size_t buflen; /* The length of the byte sequence in buf. */
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+ wint_t wc = 0; /* A gotten wide character. */
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+ size_t mblength; /* The byte size of a multibyte character which shows
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+ as same character as WC. */
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+ mbstate_t state; /* State of the stream. */
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+ bool convfail = false; /* true, when conversion failed. Otherwise false. */
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+
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+ current_rp = frp;
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+
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+ found_any_selected_field = 0;
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+ field_idx = 1;
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+ bufpos = buf;
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+ buflen = 0;
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+ memset (&state, '\0', sizeof(mbstate_t));
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+
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+ c = getc (stream);
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+ empty_input = (c == EOF);
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+ if (c != EOF)
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+ {
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+ ungetc (c, stream);
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+ wc = 0;
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+ }
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+ else
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+ wc = WEOF;
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+
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+ /* To support the semantics of the -s flag, we may have to buffer
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+ all of the first field to determine whether it is `delimited.'
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+ But that is unnecessary if all non-delimited lines must be printed
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+ and the first field has been selected, or if non-delimited lines
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+ must be suppressed and the first field has *not* been selected.
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+ That is because a non-delimited line has exactly one field. */
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+ buffer_first_field = (suppress_non_delimited ^ !print_kth (1));
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+
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+ while (1)
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+ {
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+ if (field_idx == 1 && buffer_first_field)
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+ {
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+ int len = 0;
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+
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+ while (1)
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+ {
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+ REFILL_BUFFER (buf, bufpos, buflen, stream);
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+
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+ GET_NEXT_WC_FROM_BUFFER
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+ (wc, bufpos, buflen, mblength, state, convfail);
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+
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+ if (wc == WEOF)
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+ break;
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+
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+ field_1_buffer = xrealloc (field_1_buffer, len + mblength);
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+ memcpy (field_1_buffer + len, bufpos, mblength);
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+ len += mblength;
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+ buflen -= mblength;
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+ bufpos += mblength;
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+
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+ if (!convfail && (wc == line_delim || wc == wcdelim))
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+ break;
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+ }
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+
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+ if (len <= 0 && wc == WEOF)
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+ break;
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+
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+ /* If the first field extends to the end of line (it is not
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+ delimited) and we are printing all non-delimited lines,
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+ print this one. */
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+ if (convfail || (!convfail && wc != wcdelim))
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+ {
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+ if (suppress_non_delimited)
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+ {
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+ /* Empty. */
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+ }
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+ else
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+ {
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+ fwrite (field_1_buffer, sizeof (char), len, stdout);
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+ /* Make sure the output line is newline terminated. */
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+ if (convfail || (!convfail && wc != line_delim))
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+ putchar (line_delim);
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+ }
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+ continue;
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+ }
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+
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+ if (print_kth (1))
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+ {
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+ /* Print the field, but not the trailing delimiter. */
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+ fwrite (field_1_buffer, sizeof (char), len - 1, stdout);
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+ found_any_selected_field = 1;
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+ }
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+ next_item (&field_idx);
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+ }
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+
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+ if (wc != WEOF)
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+ {
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+ if (print_kth (field_idx))
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+ {
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+ if (found_any_selected_field)
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+ {
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+ fwrite (output_delimiter_string, sizeof (char),
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+ output_delimiter_length, stdout);
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+ }
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+ found_any_selected_field = 1;
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+ }
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+
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+ while (1)
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+ {
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+ REFILL_BUFFER (buf, bufpos, buflen, stream);
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+
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+ GET_NEXT_WC_FROM_BUFFER
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+ (wc, bufpos, buflen, mblength, state, convfail);
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+
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+ if (wc == WEOF)
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+ break;
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+ else if (!convfail && (wc == wcdelim || wc == line_delim))
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+ {
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+ buflen -= mblength;
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+ bufpos += mblength;
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+ break;
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+ }
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+
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+ if (print_kth (field_idx))
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+ fwrite (bufpos, mblength, sizeof(char), stdout);
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+
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+ buflen -= mblength;
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+ bufpos += mblength;
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+ }
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+ }
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+
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+ if ((!convfail || wc == line_delim) && buflen < 1)
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+ wc = WEOF;
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+
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+ if (!convfail && wc == wcdelim)
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+ next_item (&field_idx);
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+ else if (wc == WEOF || (!convfail && wc == line_delim))
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+ {
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+ if (found_any_selected_field
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+ || (!empty_input && !(suppress_non_delimited && field_idx == 1)))
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+ putchar (line_delim);
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+ if (wc == WEOF)
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+ break;
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+ field_idx = 1;
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+ current_rp = frp;
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+ found_any_selected_field = 0;
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+ }
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+ }
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+}
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+#endif
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+
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static void
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cut_stream (FILE *stream)
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{
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- if (operating_mode == byte_mode)
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- cut_bytes (stream);
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+#if HAVE_MBRTOWC
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+ if (MB_CUR_MAX > 1 && !force_singlebyte_mode)
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+ {
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+ switch (operating_mode)
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+ {
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+ case byte_mode:
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+ if (byte_mode_character_aware)
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+ cut_characters_or_cut_bytes_no_split (stream);
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+ else
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+ cut_bytes (stream);
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+ break;
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+
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+ case character_mode:
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+ cut_characters_or_cut_bytes_no_split (stream);
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+ break;
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+
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+ case field_mode:
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+ if (delimlen == 1)
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+ {
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+ /* Check if we have utf8 multibyte locale, so we can use this
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+ optimization because of uniqueness of characters, which is
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+ not true for e.g. SJIS */
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+ char * loc = setlocale(LC_CTYPE, NULL);
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+ if (loc && (strstr (loc, "UTF-8") || strstr (loc, "utf-8") ||
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+ strstr (loc, "UTF8") || strstr (loc, "utf8")))
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+ {
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+ cut_fields (stream);
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+ break;
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+ }
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+ }
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+ cut_fields_mb (stream);
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|
+ 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.
|
||
|
@@ -483,6 +836,7 @@ 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]);
|
||
|
@@ -505,7 +859,6 @@ 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"));
|
||
|
@@ -513,6 +866,14 @@ 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)
|
||
|
@@ -524,10 +885,38 @@ 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:
|
||
|
@@ -540,6 +929,7 @@ main (int argc, char **argv)
|
||
|
break;
|
||
|
|
||
|
case 'n':
|
||
|
+ byte_mode_character_aware = 1;
|
||
|
break;
|
||
|
|
||
|
case 's':
|
||
|
@@ -579,15 +969,34 @@ main (int argc, char **argv)
|
||
|
| (complement ? SETFLD_COMPLEMENT : 0) );
|
||
|
|
||
|
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)
|