character.cpp File Reference

($Id: character.cpp 1348 2013-02-25 17:49:03Z arr $)

#include <config.h>
#include <Defn.h>
#include <errno.h>
#include <R_ext/RS.h>
#include <R_ext/rlocale.h>
#include "RBufferUtils.h"

Include dependency graph for character.cpp:

Macros
#define	SWAP(_a, _b, _TYPE)
#define	ISORT(_base, _num, _TYPE, _comp)
#define	COMPRESS(_base, _num, _TYPE, _comp)
#define	BSEARCH(_rc, _key, _base, _nmemb, _TYPE, _comp)

Enumerations
enum	wtr_type { , WTR_CHAR, WTR_RANGE }
enum	tr_spec_type { TR_INIT, TR_CHAR, TR_RANGE }

Functions
SEXP attribute_hidden	do_nzchar (SEXP call, SEXP op, SEXP args, SEXP env)
SEXP attribute_hidden	do_nchar (SEXP call, SEXP op, SEXP args, SEXP env)
SEXP attribute_hidden	do_substr (SEXP call, SEXP op, SEXP args, SEXP env)
SEXP attribute_hidden	do_substrgets (SEXP call, SEXP op, SEXP args, SEXP env)
SEXP attribute_hidden	do_abbrev (SEXP call, SEXP op, SEXP args, SEXP env)
SEXP attribute_hidden	do_makenames (SEXP call, SEXP op, SEXP args, SEXP env)
SEXP attribute_hidden	do_tolower (SEXP call, SEXP op, SEXP args, SEXP env)
SEXP attribute_hidden	do_chartr (SEXP call, SEXP op, SEXP args, SEXP env)
SEXP attribute_hidden	do_strtrim (SEXP call, SEXP op, SEXP args, SEXP env)
SEXP attribute_hidden	do_strtoi (SEXP call, SEXP op, SEXP args, SEXP env)

---

Detailed Description

All sorts of character manipulation, including grep and agrep.

---

Macro Definition Documentation

#define ISORT	(		_base,
			_num,
			_TYPE,
			_comp
	)

Value:

{                                                              \
/* insert sort */                                              \
/* require stable data */                                      \
    int _i, _j ;                                               \
    for ( _i = 1 ; _i < _num ; _i++ )                          \
        for ( _j = _i; _j > 0 &&                               \
                      (*_comp)(_base+_j-1, _base+_j)>0; _j--)  \
           SWAP(_base+_j-1, _base+_j, _TYPE);                  \
}

#define SWAP	(		_a,
			_b,
			_TYPE
	)

Value:

{                                                              \
    _TYPE _t;                                                  \
    _t    = *(_a);                                             \
    *(_a) = *(_b);                                             \
    *(_b) = _t;                                                \
}