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/* Copyright (C) 1995,1996,1998, 2000, 2001, 2004, 2006 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <ctype.h>
#include <limits.h>
#include "libguile/_scm.h"
#include "libguile/validate.h"
#include "libguile/chars.h"
#include "libguile/srfi-14.h"
SCM_DEFINE (scm_char_p, "char?", 1, 0, 0,
(SCM x),
"Return @code{#t} iff @var{x} is a character, else @code{#f}.")
#define FUNC_NAME s_scm_char_p
{
return scm_from_bool (SCM_CHARP(x));
}
#undef FUNC_NAME
SCM_DEFINE1 (scm_char_eq_p, "char=?", scm_tc7_rpsubr,
(SCM x, SCM y),
"Return @code{#t} iff @var{x} is the same character as @var{y}, else @code{#f}.")
#define FUNC_NAME s_scm_char_eq_p
{
SCM_VALIDATE_CHAR (1, x);
SCM_VALIDATE_CHAR (2, y);
return scm_from_bool (scm_is_eq (x, y));
}
#undef FUNC_NAME
SCM_DEFINE1 (scm_char_less_p, "char<?", scm_tc7_rpsubr,
(SCM x, SCM y),
"Return @code{#t} iff @var{x} is less than @var{y} in the ASCII sequence,\n"
"else @code{#f}.")
#define FUNC_NAME s_scm_char_less_p
{
SCM_VALIDATE_CHAR (1, x);
SCM_VALIDATE_CHAR (2, y);
return scm_from_bool (SCM_CHAR(x) < SCM_CHAR(y));
}
#undef FUNC_NAME
SCM_DEFINE1 (scm_char_leq_p, "char<=?", scm_tc7_rpsubr,
(SCM x, SCM y),
"Return @code{#t} iff @var{x} is less than or equal to @var{y} in the\n"
"ASCII sequence, else @code{#f}.")
#define FUNC_NAME s_scm_char_leq_p
{
SCM_VALIDATE_CHAR (1, x);
SCM_VALIDATE_CHAR (2, y);
return scm_from_bool (SCM_CHAR(x) <= SCM_CHAR(y));
}
#undef FUNC_NAME
SCM_DEFINE1 (scm_char_gr_p, "char>?", scm_tc7_rpsubr,
(SCM x, SCM y),
"Return @code{#t} iff @var{x} is greater than @var{y} in the ASCII\n"
"sequence, else @code{#f}.")
#define FUNC_NAME s_scm_char_gr_p
{
SCM_VALIDATE_CHAR (1, x);
SCM_VALIDATE_CHAR (2, y);
return scm_from_bool (SCM_CHAR(x) > SCM_CHAR(y));
}
#undef FUNC_NAME
SCM_DEFINE1 (scm_char_geq_p, "char>=?", scm_tc7_rpsubr,
(SCM x, SCM y),
"Return @code{#t} iff @var{x} is greater than or equal to @var{y} in the\n"
"ASCII sequence, else @code{#f}.")
#define FUNC_NAME s_scm_char_geq_p
{
SCM_VALIDATE_CHAR (1, x);
SCM_VALIDATE_CHAR (2, y);
return scm_from_bool (SCM_CHAR(x) >= SCM_CHAR(y));
}
#undef FUNC_NAME
SCM_DEFINE1 (scm_char_ci_eq_p, "char-ci=?", scm_tc7_rpsubr,
(SCM x, SCM y),
"Return @code{#t} iff @var{x} is the same character as @var{y} ignoring\n"
"case, else @code{#f}.")
#define FUNC_NAME s_scm_char_ci_eq_p
{
SCM_VALIDATE_CHAR (1, x);
SCM_VALIDATE_CHAR (2, y);
return scm_from_bool (scm_c_upcase(SCM_CHAR(x))==scm_c_upcase(SCM_CHAR(y)));
}
#undef FUNC_NAME
SCM_DEFINE1 (scm_char_ci_less_p, "char-ci<?", scm_tc7_rpsubr,
(SCM x, SCM y),
"Return @code{#t} iff @var{x} is less than @var{y} in the ASCII sequence\n"
"ignoring case, else @code{#f}.")
#define FUNC_NAME s_scm_char_ci_less_p
{
SCM_VALIDATE_CHAR (1, x);
SCM_VALIDATE_CHAR (2, y);
return scm_from_bool ((scm_c_upcase(SCM_CHAR(x))) < scm_c_upcase(SCM_CHAR(y)));
}
#undef FUNC_NAME
SCM_DEFINE1 (scm_char_ci_leq_p, "char-ci<=?", scm_tc7_rpsubr,
(SCM x, SCM y),
"Return @code{#t} iff @var{x} is less than or equal to @var{y} in the\n"
"ASCII sequence ignoring case, else @code{#f}.")
#define FUNC_NAME s_scm_char_ci_leq_p
{
SCM_VALIDATE_CHAR (1, x);
SCM_VALIDATE_CHAR (2, y);
return scm_from_bool (scm_c_upcase(SCM_CHAR(x)) <= scm_c_upcase(SCM_CHAR(y)));
}
#undef FUNC_NAME
SCM_DEFINE1 (scm_char_ci_gr_p, "char-ci>?", scm_tc7_rpsubr,
(SCM x, SCM y),
"Return @code{#t} iff @var{x} is greater than @var{y} in the ASCII\n"
"sequence ignoring case, else @code{#f}.")
#define FUNC_NAME s_scm_char_ci_gr_p
{
SCM_VALIDATE_CHAR (1, x);
SCM_VALIDATE_CHAR (2, y);
return scm_from_bool (scm_c_upcase(SCM_CHAR(x)) > scm_c_upcase(SCM_CHAR(y)));
}
#undef FUNC_NAME
SCM_DEFINE1 (scm_char_ci_geq_p, "char-ci>=?", scm_tc7_rpsubr,
(SCM x, SCM y),
"Return @code{#t} iff @var{x} is greater than or equal to @var{y} in the\n"
"ASCII sequence ignoring case, else @code{#f}.")
#define FUNC_NAME s_scm_char_ci_geq_p
{
SCM_VALIDATE_CHAR (1, x);
SCM_VALIDATE_CHAR (2, y);
return scm_from_bool (scm_c_upcase(SCM_CHAR(x)) >= scm_c_upcase(SCM_CHAR(y)));
}
#undef FUNC_NAME
SCM_DEFINE (scm_char_alphabetic_p, "char-alphabetic?", 1, 0, 0,
(SCM chr),
"Return @code{#t} iff @var{chr} is alphabetic, else @code{#f}.\n")
#define FUNC_NAME s_scm_char_alphabetic_p
{
return scm_char_set_contains_p (scm_char_set_letter, chr);
}
#undef FUNC_NAME
SCM_DEFINE (scm_char_numeric_p, "char-numeric?", 1, 0, 0,
(SCM chr),
"Return @code{#t} iff @var{chr} is numeric, else @code{#f}.\n")
#define FUNC_NAME s_scm_char_numeric_p
{
return scm_char_set_contains_p (scm_char_set_digit, chr);
}
#undef FUNC_NAME
SCM_DEFINE (scm_char_whitespace_p, "char-whitespace?", 1, 0, 0,
(SCM chr),
"Return @code{#t} iff @var{chr} is whitespace, else @code{#f}.\n")
#define FUNC_NAME s_scm_char_whitespace_p
{
return scm_char_set_contains_p (scm_char_set_whitespace, chr);
}
#undef FUNC_NAME
SCM_DEFINE (scm_char_upper_case_p, "char-upper-case?", 1, 0, 0,
(SCM chr),
"Return @code{#t} iff @var{chr} is uppercase, else @code{#f}.\n")
#define FUNC_NAME s_scm_char_upper_case_p
{
return scm_char_set_contains_p (scm_char_set_upper_case, chr);
}
#undef FUNC_NAME
SCM_DEFINE (scm_char_lower_case_p, "char-lower-case?", 1, 0, 0,
(SCM chr),
"Return @code{#t} iff @var{chr} is lowercase, else @code{#f}.\n")
#define FUNC_NAME s_scm_char_lower_case_p
{
return scm_char_set_contains_p (scm_char_set_lower_case, chr);
}
#undef FUNC_NAME
SCM_DEFINE (scm_char_is_both_p, "char-is-both?", 1, 0, 0,
(SCM chr),
"Return @code{#t} iff @var{chr} is either uppercase or lowercase, else @code{#f}.\n")
#define FUNC_NAME s_scm_char_is_both_p
{
if (scm_is_true (scm_char_set_contains_p (scm_char_set_lower_case, chr)))
return SCM_BOOL_T;
return scm_char_set_contains_p (scm_char_set_upper_case, chr);
}
#undef FUNC_NAME
SCM_DEFINE (scm_char_to_integer, "char->integer", 1, 0, 0,
(SCM chr),
"Return the number corresponding to ordinal position of @var{chr} in the\n"
"ASCII sequence.")
#define FUNC_NAME s_scm_char_to_integer
{
SCM_VALIDATE_CHAR (1, chr);
return scm_from_ulong (SCM_CHAR(chr));
}
#undef FUNC_NAME
SCM_DEFINE (scm_integer_to_char, "integer->char", 1, 0, 0,
(SCM n),
"Return the character at position @var{n} in the ASCII sequence.")
#define FUNC_NAME s_scm_integer_to_char
{
return SCM_MAKE_CHAR (scm_to_uchar (n));
}
#undef FUNC_NAME
SCM_DEFINE (scm_char_upcase, "char-upcase", 1, 0, 0,
(SCM chr),
"Return the uppercase character version of @var{chr}.")
#define FUNC_NAME s_scm_char_upcase
{
SCM_VALIDATE_CHAR (1, chr);
return SCM_MAKE_CHAR (toupper (SCM_CHAR (chr)));
}
#undef FUNC_NAME
SCM_DEFINE (scm_char_downcase, "char-downcase", 1, 0, 0,
(SCM chr),
"Return the lowercase character version of @var{chr}.")
#define FUNC_NAME s_scm_char_downcase
{
SCM_VALIDATE_CHAR (1, chr);
return SCM_MAKE_CHAR (tolower (SCM_CHAR(chr)));
}
#undef FUNC_NAME
/*
TODO: change name to scm_i_.. ? --hwn
*/
int
scm_c_upcase (unsigned int c)
{
if (c <= UCHAR_MAX)
return toupper (c);
else
return c;
}
int
scm_c_downcase (unsigned int c)
{
if (c <= UCHAR_MAX)
return tolower (c);
else
return c;
}
#ifdef _DCC
# define ASCII
#else
# if (('\n'=='\025') && (' '=='\100') && ('a'=='\201') && ('A'=='\301'))
# define EBCDIC
# endif /* (('\n'=='\025') && (' '=='\100') && ('a'=='\201') && ('A'=='\301')) */
# if (('\n'=='\012') && (' '=='\040') && ('a'=='\141') && ('A'=='\101'))
# define ASCII
# endif /* (('\n'=='\012') && (' '=='\040') && ('a'=='\141') && ('A'=='\101')) */
#endif /* def _DCC */
#ifdef EBCDIC
char *const scm_charnames[] =
{
"nul", "soh", "stx", "etx", "pf", "ht", "lc", "del",
0 , 0 , "smm", "vt", "ff", "cr", "so", "si",
"dle", "dc1", "dc2", "dc3", "res", "nl", "bs", "il",
"can", "em", "cc", 0 , "ifs", "igs", "irs", "ius",
"ds", "sos", "fs", 0 , "byp", "lf", "eob", "pre",
0 , 0 , "sm", 0 , 0 , "enq", "ack", "bel",
0 , 0 , "syn", 0 , "pn", "rs", "uc", "eot",
0 , 0 , 0 , 0 , "dc4", "nak", 0 , "sub",
"space", scm_s_newline, "tab", "backspace", "return", "page", "null"};
const char scm_charnums[] =
"\000\001\002\003\004\005\006\007\
\010\011\012\013\014\015\016\017\
\020\021\022\023\024\025\026\027\
\030\031\032\033\034\035\036\037\
\040\041\042\043\044\045\046\047\
\050\051\052\053\054\055\056\057\
\060\061\062\063\064\065\066\067\
\070\071\072\073\074\075\076\077\
\n\t\b\r\f\0";
#endif /* def EBCDIC */
#ifdef ASCII
char *const scm_charnames[] =
{
"nul","soh","stx","etx","eot","enq","ack","bel",
"bs", "ht", "newline", "vt", "np", "cr", "so", "si",
"dle","dc1","dc2","dc3","dc4","nak","syn","etb",
"can", "em","sub","esc", "fs", "gs", "rs", "us",
"space", "sp", "nl", "tab", "backspace", "return", "page", "null", "del"};
const char scm_charnums[] =
"\000\001\002\003\004\005\006\007\
\010\011\012\013\014\015\016\017\
\020\021\022\023\024\025\026\027\
\030\031\032\033\034\035\036\037\
\n\t\b\r\f\0\177";
#endif /* def ASCII */
int scm_n_charnames = sizeof (scm_charnames) / sizeof (char *);
void
scm_init_chars ()
{
#include "libguile/chars.x"
}
/*
Local Variables:
c-file-style: "gnu"
End:
*/
|
