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Diffstat (limited to 'libguile/strorder.c')
-rw-r--r-- | libguile/strorder.c | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/libguile/strorder.c b/libguile/strorder.c new file mode 100644 index 000000000..5e1a15a26 --- /dev/null +++ b/libguile/strorder.c @@ -0,0 +1,266 @@ +/* Copyright (C) 1995,1996 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, 675 Mass Ave, Cambridge, MA 02139, 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. + */ + + +#include <stdio.h> +#include "_scm.h" + + + +SCM_PROC1 (s_string_equal_p, "string=?", scm_tc7_rpsubr, scm_string_equal_p); +#ifdef __STDC__ +SCM +scm_string_equal_p (SCM s1, SCM s2) +#else +SCM +scm_string_equal_p (s1, s2) + SCM s1; + SCM s2; +#endif +{ + register scm_sizet i; + register char *c1, *c2; + SCM_ASSERT (SCM_NIMP (s1) && SCM_ROSTRINGP (s1), s1, SCM_ARG1, s_string_equal_p); + SCM_ASSERT (SCM_NIMP (s2) && SCM_ROSTRINGP (s2), s2, SCM_ARG2, s_string_equal_p); + + i = SCM_ROLENGTH (s2); + if (SCM_ROLENGTH (s1) != i) + { + return SCM_BOOL_F; + } + c1 = SCM_ROCHARS (s1); + c2 = SCM_ROCHARS (s2); + while (0 != i--) + if (*c1++ != *c2++) + return SCM_BOOL_F; + return SCM_BOOL_T; +} + +SCM_PROC1 (s_string_ci_equal_p, "string-ci=?", scm_tc7_rpsubr, scm_string_ci_equal_p); +#ifdef __STDC__ +SCM +scm_string_ci_equal_p (SCM s1, SCM s2) +#else +SCM +scm_string_ci_equal_p (s1, s2) + SCM s1; + SCM s2; +#endif +{ + register scm_sizet i; + register unsigned char *c1, *c2; + SCM_ASSERT (SCM_NIMP (s1) && SCM_ROSTRINGP (s1), s1, SCM_ARG1, s_string_ci_equal_p); + SCM_ASSERT (SCM_NIMP (s2) && SCM_ROSTRINGP (s2), s2, SCM_ARG2, s_string_ci_equal_p); + i = SCM_ROLENGTH (s2); + if (SCM_ROLENGTH (s1) != i) + { + return SCM_BOOL_F; + } + c1 = SCM_ROUCHARS (s1); + c2 = SCM_ROUCHARS (s2); + while (0 != i--) + if (scm_upcase(*c1++) != scm_upcase(*c2++)) + return SCM_BOOL_F; + return SCM_BOOL_T; +} + +SCM_PROC1 (s_string_less_p, "string<?", scm_tc7_rpsubr, scm_string_less_p); +#ifdef __STDC__ +SCM +scm_string_less_p (SCM s1, SCM s2) +#else +SCM +scm_string_less_p (s1, s2) + SCM s1; + SCM s2; +#endif +{ + register scm_sizet i, len, s2len; + register unsigned char *c1, *c2; + register int c; + + SCM_ASSERT (SCM_NIMP (s1) && SCM_ROSTRINGP (s1), s1, SCM_ARG1, s_string_less_p); + SCM_ASSERT (SCM_NIMP (s2) && SCM_ROSTRINGP (s2), s2, SCM_ARG2, s_string_less_p); + len = SCM_ROLENGTH (s1); + s2len = i = SCM_ROLENGTH (s2); + if (len>i) i = len; + c1 = SCM_ROUCHARS (s1); + c2 = SCM_ROUCHARS (s2); + + for (i = 0;i<len;i++) { + c = (*c1++ - *c2++); + if (c>0) + return SCM_BOOL_F; + if (c<0) + return SCM_BOOL_T; + } + { + SCM answer; + answer = (s2len != len) ? SCM_BOOL_T : SCM_BOOL_F; + return answer; + } +} + +SCM_PROC1 (s_string_leq_p, "string<=?", scm_tc7_rpsubr, scm_string_leq_p); +#ifdef __STDC__ +SCM +scm_string_leq_p (SCM s1, SCM s2) +#else +SCM +scm_string_leq_p (s1, s2) + SCM s1; + SCM s2; +#endif +{ + return SCM_BOOL_NOT (scm_string_less_p (s2, s1)); +} + +SCM_PROC1 (s_string_gr_p, "string>?", scm_tc7_rpsubr, scm_string_gr_p); +#ifdef __STDC__ +SCM +scm_string_gr_p (SCM s1, SCM s2) +#else +SCM +scm_string_gr_p (s1, s2) + SCM s1; + SCM s2; +#endif +{ + return scm_string_less_p (s2, s1); +} + +SCM_PROC1 (s_string_geq_p, "string>=?", scm_tc7_rpsubr, scm_string_geq_p); +#ifdef __STDC__ +SCM +scm_string_geq_p (SCM s1, SCM s2) +#else +SCM +scm_string_geq_p (s1, s2) + SCM s1; + SCM s2; +#endif +{ + return SCM_BOOL_NOT (scm_string_less_p (s1, s2)); +} + +SCM_PROC1 (s_string_ci_less_p, "string-ci<?", scm_tc7_rpsubr, scm_string_ci_less_p); +#ifdef __STDC__ +SCM +scm_string_ci_less_p (SCM s1, SCM s2) +#else +SCM +scm_string_ci_less_p (s1, s2) + SCM s1; + SCM s2; +#endif +{ + register scm_sizet i, len, s2len; + register unsigned char *c1, *c2; + register int c; + SCM_ASSERT (SCM_NIMP (s1) && SCM_ROSTRINGP (s1), s1, SCM_ARG1, s_string_ci_less_p); + SCM_ASSERT (SCM_NIMP (s2) && SCM_ROSTRINGP (s2), s2, SCM_ARG2, s_string_ci_less_p); + len = SCM_ROLENGTH (s1); + s2len = i = SCM_ROLENGTH (s2); + if (len>i) i=len; + c1 = SCM_ROUCHARS (s1); + c2 = SCM_ROUCHARS (s2); + for (i = 0;i<len;i++) { + c = (scm_upcase(*c1++) - scm_upcase(*c2++)); + if (c>0) return SCM_BOOL_F; + if (c<0) return SCM_BOOL_T; + } + return (s2len != len) ? SCM_BOOL_T : SCM_BOOL_F; +} + +SCM_PROC1 (s_string_ci_leq_p, "string-ci<=?", scm_tc7_rpsubr, scm_string_ci_leq_p); +#ifdef __STDC__ +SCM +scm_string_ci_leq_p (SCM s1, SCM s2) +#else +SCM +scm_string_ci_leq_p (s1, s2) + SCM s1; + SCM s2; +#endif +{ + return SCM_BOOL_NOT (scm_string_ci_less_p (s2, s1)); +} + +SCM_PROC1 (s_string_ci_gr_p, "string-ci>?", scm_tc7_rpsubr, scm_string_ci_gr_p); +#ifdef __STDC__ +SCM +scm_string_ci_gr_p (SCM s1, SCM s2) +#else +SCM +scm_string_ci_gr_p (s1, s2) + SCM s1; + SCM s2; +#endif +{ + return scm_string_ci_less_p (s2, s1); +} + +SCM_PROC1 (s_string_ci_geq_p, "string-ci>=?", scm_tc7_rpsubr, scm_string_ci_geq_p); +#ifdef __STDC__ +SCM +scm_string_ci_geq_p (SCM s1, SCM s2) +#else +SCM +scm_string_ci_geq_p (s1, s2) + SCM s1; + SCM s2; +#endif +{ + return SCM_BOOL_NOT (scm_string_ci_less_p (s1, s2)); +} + + +#ifdef __STDC__ +void +scm_init_strorder (void) +#else +void +scm_init_strorder () +#endif +{ +#include "strorder.x" +} + |