mirror of
https://git.savannah.gnu.org/git/guile.git
synced 2025-04-30 03:40:34 +02:00
8dc9439fc6
continuations.c, debug-malloc.c, debug.c, dynl.c, dynwind.c, environments.c, eq.c, error.c, eval.c, evalext.c, feature.c, filesys.c, fluids.c, fports.c, gc.c, goops.c, guardians.c, hash.c, hashtab.c, hooks.c, ioext.c, iselect.c, keywords.c, lang.c, list.c, load.c, macros.c, modules.c, net_db.c, numbers.c, objects.c, objprop.c, options.c, pairs.c, ports.c, posix.c, print.c, procprop.c, procs.c, properties.c, ramap.c, random.c, read.c, regex-posix.c, root.c, scmsigs.c, script.c, simpos.c, socket.c, sort.c, srcprop.c, stackchk.c, stacks.c, stime.c, strings.c, strop.c, strorder.c, strports.c, struct.c, symbols.c, tag.c, threads.c, throw.c, unif.c, variable.c, vectors.c, version.c, vports.c, weaks.c: Makes sure the snarfer output inclusion is disabled when the snarfer is run on the file. Thanks to Lars J. Aas! * Makefile.am: Install guile-procedures.txt in version-specific directory to enable multiple installed guile versions. Suggested by Karl M. Hegbloom <karlheg@debian.org, patch by Matthias Koeppe.
269 lines
8.2 KiB
C
269 lines
8.2 KiB
C
/* Copyright (C) 1995, 1996, 1999, 2000 Free Software Foundation, Inc.
|
||
*
|
||
* This program is free software; you can redistribute it and/or modify
|
||
* it under the terms of the GNU General Public License as published by
|
||
* the Free Software Foundation; either version 2, or (at your option)
|
||
* any later version.
|
||
*
|
||
* This program 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 General Public License for more details.
|
||
*
|
||
* You should have received a copy of the GNU General Public License
|
||
* along with this software; see the file COPYING. If not, write to
|
||
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
|
||
* Boston, MA 02111-1307 USA
|
||
*
|
||
* As a special exception, the Free Software Foundation gives permission
|
||
* for additional uses of the text contained in its release of GUILE.
|
||
*
|
||
* The exception is that, if you link the GUILE library with other files
|
||
* to produce an executable, this does not by itself cause the
|
||
* resulting executable to be covered by the GNU General Public License.
|
||
* Your use of that executable is in no way restricted on account of
|
||
* linking the GUILE library code into it.
|
||
*
|
||
* This exception does not however invalidate any other reasons why
|
||
* the executable file might be covered by the GNU General Public License.
|
||
*
|
||
* This exception applies only to the code released by the
|
||
* Free Software Foundation under the name GUILE. If you copy
|
||
* code from other Free Software Foundation releases into a copy of
|
||
* GUILE, as the General Public License permits, the exception does
|
||
* not apply to the code that you add in this way. To avoid misleading
|
||
* anyone as to the status of such modified files, you must delete
|
||
* this exception notice from them.
|
||
*
|
||
* If you write modifications of your own for GUILE, it is your choice
|
||
* whether to permit this exception to apply to your modifications.
|
||
* If you do not wish that, delete this exception notice. */
|
||
|
||
/* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
|
||
gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
|
||
|
||
|
||
#include <stdio.h>
|
||
#include "libguile/_scm.h"
|
||
#include "libguile/chars.h"
|
||
#include "libguile/strings.h"
|
||
#include "libguile/symbols.h"
|
||
|
||
#include "libguile/validate.h"
|
||
#include "libguile/strorder.h"
|
||
|
||
|
||
SCM_DEFINE1 (scm_string_equal_p, "string=?", scm_tc7_rpsubr,
|
||
(SCM s1, SCM s2),
|
||
"Lexicographic equality predicate; \n"
|
||
"Returns @t{#t} if the two strings are the same length and contain the same\n"
|
||
"characters in the same positions, otherwise returns @t{#f}. (r5rs)\n\n"
|
||
"@samp{String-ci=?} treats\n"
|
||
"upper and lower case letters as though they were the same character, but\n"
|
||
"@samp{string=?} treats upper and lower case as distinct characters.")
|
||
#define FUNC_NAME s_scm_string_equal_p
|
||
{
|
||
scm_sizet length;
|
||
|
||
SCM_VALIDATE_STRING (1, s1);
|
||
SCM_VALIDATE_STRING (2, s2);
|
||
|
||
length = SCM_STRING_LENGTH (s2);
|
||
if (SCM_STRING_LENGTH (s1) == length)
|
||
{
|
||
unsigned char *c1 = SCM_ROUCHARS (s1) + length - 1;
|
||
unsigned char *c2 = SCM_ROUCHARS (s2) + length - 1;
|
||
scm_sizet i;
|
||
|
||
/* comparing from back to front typically finds mismatches faster */
|
||
for (i = 0; i != length; ++i, --c1, --c2)
|
||
if (*c1 != *c2)
|
||
return SCM_BOOL_F;
|
||
|
||
return SCM_BOOL_T;
|
||
}
|
||
else
|
||
{
|
||
return SCM_BOOL_F;
|
||
}
|
||
}
|
||
#undef FUNC_NAME
|
||
|
||
|
||
SCM_DEFINE1 (scm_string_ci_equal_p, "string-ci=?", scm_tc7_rpsubr,
|
||
(SCM s1, SCM s2),
|
||
"Case-insensitive string equality predicate; returns @t{#t} if\n"
|
||
"the two strings are the same length and their component characters\n"
|
||
"match (ignoring case) at each position; otherwise returns @t{#f}. (r5rs)")
|
||
#define FUNC_NAME s_scm_string_ci_equal_p
|
||
{
|
||
scm_sizet length;
|
||
|
||
SCM_VALIDATE_STRING (1, s1);
|
||
SCM_VALIDATE_STRING (2, s2);
|
||
|
||
length = SCM_STRING_LENGTH (s2);
|
||
if (SCM_STRING_LENGTH (s1) == length)
|
||
{
|
||
unsigned char *c1 = SCM_ROUCHARS (s1) + length - 1;
|
||
unsigned char *c2 = SCM_ROUCHARS (s2) + length - 1;
|
||
scm_sizet i;
|
||
|
||
/* comparing from back to front typically finds mismatches faster */
|
||
for (i = 0; i != length; ++i, --c1, --c2)
|
||
if (scm_upcase (*c1) != scm_upcase (*c2))
|
||
return SCM_BOOL_F;
|
||
|
||
return SCM_BOOL_T;
|
||
}
|
||
else
|
||
{
|
||
return SCM_BOOL_F;
|
||
}
|
||
}
|
||
#undef FUNC_NAME
|
||
|
||
|
||
SCM_DEFINE1 (scm_string_less_p, "string<?", scm_tc7_rpsubr,
|
||
(SCM s1, SCM s2),
|
||
"Lexicographic ordering predicate; returns @t{#t} if @var{s1}\n"
|
||
"is lexicographically less than @var{s2}. (r5rs)")
|
||
#define FUNC_NAME s_scm_string_less_p
|
||
{
|
||
scm_sizet i, length1, length2, lengthm;
|
||
unsigned char *c1, *c2;
|
||
|
||
SCM_VALIDATE_STRING (1, s1);
|
||
SCM_VALIDATE_STRING (2, s2);
|
||
|
||
length1 = SCM_STRING_LENGTH (s1);
|
||
length2 = SCM_STRING_LENGTH (s2);
|
||
lengthm = min (length1, length2);
|
||
c1 = SCM_ROUCHARS (s1);
|
||
c2 = SCM_ROUCHARS (s2);
|
||
|
||
for (i = 0; i != lengthm; ++i, ++c1, ++c2) {
|
||
int c = *c1 - *c2;
|
||
if (c < 0) return SCM_BOOL_T;
|
||
if (c > 0) return SCM_BOOL_F;
|
||
}
|
||
|
||
return SCM_BOOL (length1 < length2);
|
||
}
|
||
#undef FUNC_NAME
|
||
|
||
|
||
SCM_DEFINE1 (scm_string_leq_p, "string<=?", scm_tc7_rpsubr,
|
||
(SCM s1, SCM s2),
|
||
"Lexicographic ordering predicate; returns @t{#t} if @var{s1}\n"
|
||
"is lexicographically less than or equal to @var{s2}. (r5rs)")
|
||
#define FUNC_NAME s_scm_string_leq_p
|
||
{
|
||
return SCM_BOOL_NOT (scm_string_less_p (s2, s1));
|
||
}
|
||
#undef FUNC_NAME
|
||
|
||
|
||
SCM_DEFINE1 (scm_string_gr_p, "string>?", scm_tc7_rpsubr,
|
||
(SCM s1, SCM s2),
|
||
"Lexicographic ordering predicate; returns @t{#t} if @var{s1}\n"
|
||
"is lexicographically greater than @var{s2}. (r5rs)")
|
||
#define FUNC_NAME s_scm_string_gr_p
|
||
{
|
||
return scm_string_less_p (s2, s1);
|
||
}
|
||
#undef FUNC_NAME
|
||
|
||
|
||
SCM_DEFINE1 (scm_string_geq_p, "string>=?", scm_tc7_rpsubr,
|
||
(SCM s1, SCM s2),
|
||
"Lexicographic ordering predicate; returns @t{#t} if @var{s1}\n"
|
||
"is lexicographically greater than or equal to @var{s2}. (r5rs)")
|
||
#define FUNC_NAME s_scm_string_geq_p
|
||
{
|
||
return SCM_BOOL_NOT (scm_string_less_p (s1, s2));
|
||
}
|
||
#undef FUNC_NAME
|
||
|
||
|
||
SCM_DEFINE1 (scm_string_ci_less_p, "string-ci<?", scm_tc7_rpsubr,
|
||
(SCM s1, SCM s2),
|
||
"Case insensitive lexicographic ordering predicate; \n"
|
||
"returns @t{#t} if @var{s1} is lexicographically less than\n"
|
||
"@var{s2} regardless of case. (r5rs)")
|
||
#define FUNC_NAME s_scm_string_ci_less_p
|
||
{
|
||
scm_sizet i, length1, length2, lengthm;
|
||
unsigned char *c1, *c2;
|
||
|
||
SCM_VALIDATE_STRING (1, s1);
|
||
SCM_VALIDATE_STRING (2, s2);
|
||
|
||
length1 = SCM_STRING_LENGTH (s1);
|
||
length2 = SCM_STRING_LENGTH (s2);
|
||
lengthm = min (length1, length2);
|
||
c1 = SCM_ROUCHARS (s1);
|
||
c2 = SCM_ROUCHARS (s2);
|
||
|
||
for (i = 0; i != lengthm; ++i, ++c1, ++c2) {
|
||
int c = scm_upcase (*c1) - scm_upcase (*c2);
|
||
if (c < 0) return SCM_BOOL_T;
|
||
if (c > 0) return SCM_BOOL_F;
|
||
}
|
||
|
||
return SCM_BOOL (length1 < length2);
|
||
}
|
||
#undef FUNC_NAME
|
||
|
||
|
||
SCM_DEFINE1 (scm_string_ci_leq_p, "string-ci<=?", scm_tc7_rpsubr,
|
||
(SCM s1, SCM s2),
|
||
"Case insensitive lexicographic ordering predicate; \n"
|
||
"returns @t{#t} if @var{s1} is lexicographically less than\n"
|
||
"or equal to @var{s2} regardless of case. (r5rs)")
|
||
#define FUNC_NAME s_scm_string_ci_leq_p
|
||
{
|
||
return SCM_BOOL_NOT (scm_string_ci_less_p (s2, s1));
|
||
}
|
||
#undef FUNC_NAME
|
||
|
||
|
||
SCM_DEFINE1 (scm_string_ci_gr_p, "string-ci>?", scm_tc7_rpsubr,
|
||
(SCM s1, SCM s2),
|
||
"Case insensitive lexicographic ordering predicate; \n"
|
||
"returns @t{#t} if @var{s1} is lexicographically greater than\n"
|
||
"@var{s2} regardless of case. (r5rs)")
|
||
#define FUNC_NAME s_scm_string_ci_gr_p
|
||
{
|
||
return scm_string_ci_less_p (s2, s1);
|
||
}
|
||
#undef FUNC_NAME
|
||
|
||
|
||
SCM_DEFINE1 (scm_string_ci_geq_p, "string-ci>=?", scm_tc7_rpsubr,
|
||
(SCM s1, SCM s2),
|
||
"Case insensitive lexicographic ordering predicate; \n"
|
||
"returns @t{#t} if @var{s1} is lexicographically greater than\n"
|
||
"or equal to @var{s2} regardless of case. (r5rs)")
|
||
#define FUNC_NAME s_scm_string_ci_geq_p
|
||
{
|
||
return SCM_BOOL_NOT (scm_string_ci_less_p (s1, s2));
|
||
}
|
||
#undef FUNC_NAME
|
||
|
||
|
||
|
||
void
|
||
scm_init_strorder ()
|
||
{
|
||
#ifndef SCM_MAGIC_SNARFER
|
||
#include "libguile/strorder.x"
|
||
#endif
|
||
}
|
||
|
||
|
||
/*
|
||
Local Variables:
|
||
c-file-style: "gnu"
|
||
End:
|
||
*/
|