-/* classes: src_files */
-
-/* Copyright (C) 1994 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. */
-
-\f
-
-#include <stdio.h>
-#include "_scm.h"
-
-\f
-
-#ifdef __STDC__
-int
-scm_i_index (SCM * str, SCM chr, SCM sub_start, SCM sub_end, int pos, int pos2, int pos3, int pos4, char * why)
-#else
-int
-scm_i_index (str, chr, sub_start, sub_end, pos, pos2, pos3, pos4, why)
- SCM * str;
- SCM chr;
- SCM sub_start;
- SCM sub_end;
- int pos;
- int pos2;
- int pos3;
- int pos4;
- char * why;
-#endif
-{
- unsigned char * p;
- int x;
- int bound;
- int ch;
-
- SCM_ASSERT (SCM_NIMP (*str) && SCM_ROSTRINGP (*str), *str, pos, why);
- SCM_ASSERT (SCM_ICHRP (chr), chr, pos2, why);
-
- if (sub_start == SCM_BOOL_F)
- sub_start = SCM_MAKINUM (0);
- else
- SCM_ASSERT ( SCM_INUMP (sub_start)
- && (0 <= SCM_INUM (sub_start))
- && (SCM_INUM (sub_start) <= SCM_ROLENGTH (*str)),
- sub_start, pos3, why);
-
- if (sub_end == SCM_BOOL_F)
- sub_end = SCM_MAKINUM (SCM_ROLENGTH (*str));
- else
- SCM_ASSERT ( SCM_INUMP (sub_end)
- && (SCM_INUM (sub_start) <= SCM_INUM (sub_end))
- && (SCM_INUM (sub_end) <= SCM_ROLENGTH (*str)),
- sub_end, pos4, why);
-
- p = (unsigned char *)SCM_ROCHARS (*str) + SCM_INUM (sub_start);
- bound = SCM_INUM (sub_end);
- ch = SCM_ICHR (chr);
-
- for (x = SCM_INUM (sub_start); x < bound; ++x, ++p)
- if (*p == ch)
- return x;
-
- return -1;
-}
-
-#ifdef __STDC__
-int
-scm_i_rindex (SCM * str, SCM chr, SCM sub_start, SCM sub_end, int pos, int pos2, int pos3, int pos4, char * why)
-#else
-int
-scm_i_rindex (str, chr, sub_start, sub_end, pos, pos2, pos3, pos4, why)
- SCM * str;
- SCM chr;
- SCM sub_start;
- SCM sub_end;
- int pos;
- int pos2;
- int pos3;
- int pos4;
- char * why;
-#endif
-{
- unsigned char * p;
- int x;
- int upper_bound;
- int lower_bound;
- int ch;
-
- SCM_ASSERT (SCM_NIMP (*str) && SCM_ROSTRINGP (*str), *str, pos, why);
- SCM_ASSERT (SCM_ICHRP (chr), chr, pos2, why);
-
- if (sub_start == SCM_BOOL_F)
- sub_start = SCM_MAKINUM (0);
- else
- SCM_ASSERT ( SCM_INUMP (sub_start)
- && (0 <= SCM_INUM (sub_start))
- && (SCM_INUM (sub_start) <= SCM_ROLENGTH (*str)),
- sub_start, pos3, why);
-
- if (sub_end == SCM_BOOL_F)
- sub_end = SCM_MAKINUM (SCM_ROLENGTH (*str));
- else
- SCM_ASSERT ( SCM_INUMP (sub_end)
- && (SCM_INUM (sub_start) <= SCM_INUM (sub_end))
- && (SCM_INUM (sub_end) <= SCM_ROLENGTH (*str)),
- sub_end, pos4, why);
-
- upper_bound = SCM_INUM (sub_end);
- lower_bound = SCM_INUM (sub_start);
- p = upper_bound - 1 + (unsigned char *)SCM_ROCHARS (*str);
- ch = SCM_ICHR (chr);
- for (x = upper_bound - 1; x >= lower_bound; --x, --p)
- if (*p == ch)
- return x;
-
- return -1;
-}
-
-
-SCM_PROC(s_string_index, "string-index", 2, 2, 0, scm_string_index);
-#ifdef __STDC__
-SCM
-scm_string_index (SCM str, SCM chr, SCM frm, SCM to)
-#else
-SCM
-scm_string_index (str, chr, frm, to)
- SCM str;
- SCM chr;
- SCM frm;
- SCM to;
-#endif
-{
- int pos;
-
- if (frm == SCM_UNDEFINED)
- frm = SCM_BOOL_F;
- if (to == SCM_UNDEFINED)
- to = SCM_BOOL_F;
- pos = scm_i_index (&str, chr, frm, to, SCM_ARG1, SCM_ARG2, SCM_ARG3, SCM_ARG4, s_string_index);
- return (pos < 0
- ? SCM_BOOL_F
- : SCM_MAKINUM (pos));
-}
-
-SCM_PROC(s_string_rindex, "string-rindex", 2, 2, 0, scm_string_rindex);
-#ifdef __STDC__
-SCM
-scm_string_rindex (SCM str, SCM chr, SCM frm, SCM to)
-#else
-SCM
-scm_string_rindex (str, chr, frm, to)
- SCM str;
- SCM chr;
- SCM frm;
- SCM to;
-#endif
-{
- int pos;
-
- if (frm == SCM_UNDEFINED)
- frm = SCM_BOOL_F;
- if (to == SCM_UNDEFINED)
- to = SCM_BOOL_F;
- pos = scm_i_rindex (&str, chr, frm, to, SCM_ARG1, SCM_ARG2, SCM_ARG3, SCM_ARG4, s_string_index);
- return (pos < 0
- ? SCM_BOOL_F
- : SCM_MAKINUM (pos));
-}
-
-
-
-
-
-
-SCM_PROC(s_substring_move_left_x, "substring-move-left!", 2, 0, 1, scm_substring_move_left_x);
-#ifdef __STDC__
-SCM
-scm_substring_move_left_x (SCM str1, SCM start1, SCM args)
-#else
-SCM
-scm_substring_move_left_x (str1, start1, args)
- SCM str1;
- SCM start1;
- SCM args;
-#endif
-{
- SCM end1, str2, start2;
- long i, j, e;
- SCM_ASSERT (3==scm_ilength (args), args, SCM_WNA, s_substring_move_left_x);
- end1 = SCM_CAR (args); args = SCM_CDR (args);
- str2 = SCM_CAR (args); args = SCM_CDR (args);
- start2 = SCM_CAR (args);
- SCM_ASSERT (SCM_NIMP (str1) && SCM_STRINGP (str1), str1, SCM_ARG1, s_substring_move_left_x);
- SCM_ASSERT (SCM_INUMP (start1), start1, SCM_ARG2, s_substring_move_left_x);
- SCM_ASSERT (SCM_INUMP (end1), end1, SCM_ARG3, s_substring_move_left_x);
- SCM_ASSERT (SCM_NIMP (str2) && SCM_STRINGP (str2), str2, SCM_ARG4, s_substring_move_left_x);
- SCM_ASSERT (SCM_INUMP (start2), start2, SCM_ARG5, s_substring_move_left_x);
- i = SCM_INUM (start1), j = SCM_INUM (start2), e = SCM_INUM (end1);
- SCM_ASSERT (i <= SCM_LENGTH (str1) && i >= 0, start1, SCM_OUTOFRANGE, s_substring_move_left_x);
- SCM_ASSERT (j <= SCM_LENGTH (str2) && j >= 0, start2, SCM_OUTOFRANGE, s_substring_move_left_x);
- SCM_ASSERT (e <= SCM_LENGTH (str1) && e >= 0, end1, SCM_OUTOFRANGE, s_substring_move_left_x);
- SCM_ASSERT (e-i+j <= SCM_LENGTH (str2), start2, SCM_OUTOFRANGE, s_substring_move_left_x);
- while (i<e) SCM_CHARS (str2)[j++] = SCM_CHARS (str1)[i++];
- return SCM_UNSPECIFIED;
-}
-
-
-SCM_PROC(s_substring_move_right_x, "substring-move-right!", 2, 0, 1, scm_substring_move_right_x);
-#ifdef __STDC__
-SCM
-scm_substring_move_right_x (SCM str1, SCM start1, SCM args)
-#else
-SCM
-scm_substring_move_right_x (str1, start1, args)
- SCM str1;
- SCM start1;
- SCM args;
-#endif
-{
- SCM end1, str2, start2;
- long i, j, e;
- SCM_ASSERT (3==scm_ilength (args), args, SCM_WNA, s_substring_move_right_x);
- end1 = SCM_CAR (args); args = SCM_CDR (args);
- str2 = SCM_CAR (args); args = SCM_CDR (args);
- start2 = SCM_CAR (args);
- SCM_ASSERT (SCM_NIMP (str1) && SCM_STRINGP (str1), str1, SCM_ARG1, s_substring_move_right_x);
- SCM_ASSERT (SCM_INUMP (start1), start1, SCM_ARG2, s_substring_move_right_x);
- SCM_ASSERT (SCM_INUMP (end1), end1, SCM_ARG3, s_substring_move_right_x);
- SCM_ASSERT (SCM_NIMP (str2) && SCM_STRINGP (str2), str2, SCM_ARG4, s_substring_move_right_x);
- SCM_ASSERT (SCM_INUMP (start2), start2, SCM_ARG5, s_substring_move_right_x);
- i = SCM_INUM (start1), j = SCM_INUM (start2), e = SCM_INUM (end1);
- SCM_ASSERT (i <= SCM_LENGTH (str1) && i >= 0, start1, SCM_OUTOFRANGE, s_substring_move_right_x);
- SCM_ASSERT (j <= SCM_LENGTH (str2) && j >= 0, start2, SCM_OUTOFRANGE, s_substring_move_right_x);
- SCM_ASSERT (e <= SCM_LENGTH (str1) && e >= 0, end1, SCM_OUTOFRANGE, s_substring_move_right_x);
- SCM_ASSERT ((j = e-i+j) <= SCM_LENGTH (str2), start2, SCM_OUTOFRANGE, s_substring_move_right_x);
- while (i<e) SCM_CHARS (str2)[--j] = SCM_CHARS (str1)[--e];
- return SCM_UNSPECIFIED;
-}
-
-
-SCM_PROC(s_substring_fill_x, "substring-fill!", 2, 0, 1, scm_substring_fill_x);
-#ifdef __STDC__
-SCM
-scm_substring_fill_x (SCM str, SCM start, SCM args)
-#else
-SCM
-scm_substring_fill_x (str, start, args)
- SCM str;
- SCM start;
- SCM args;
-#endif
-{
- SCM end, fill;
- long i, e;
- char c;
- SCM_ASSERT (2==scm_ilength (args), args, SCM_WNA, s_substring_fill_x);
- end = SCM_CAR (args); args = SCM_CDR (args);
- fill = SCM_CAR (args);
- SCM_ASSERT (SCM_NIMP (str) && SCM_STRINGP (str), str, SCM_ARG1, s_substring_fill_x);
- SCM_ASSERT (SCM_INUMP (start), start, SCM_ARG2, s_substring_fill_x);
- SCM_ASSERT (SCM_INUMP (end), end, SCM_ARG3, s_substring_fill_x);
- SCM_ASSERT (SCM_ICHRP (fill), fill, SCM_ARG4, s_substring_fill_x);
- i = SCM_INUM (start), e = SCM_INUM (end);c = SCM_ICHR (fill);
- SCM_ASSERT (i <= SCM_LENGTH (str) && i >= 0, start, SCM_OUTOFRANGE, s_substring_fill_x);
- SCM_ASSERT (e <= SCM_LENGTH (str) && e >= 0, end, SCM_OUTOFRANGE, s_substring_fill_x);
- while (i<e) SCM_CHARS (str)[i++] = c;
- return SCM_UNSPECIFIED;
-}
-
-
-SCM_PROC(s_string_null_p, "string-null?", 1, 0, 0, scm_string_null_p);
-#ifdef __STDC__
-SCM
-scm_string_null_p (SCM str)
-#else
-SCM
-scm_string_null_p (str)
- SCM str;
-#endif
-{
- SCM_ASSERT (SCM_NIMP (str) && SCM_ROSTRINGP (str), str, SCM_ARG1, s_string_null_p);
- return (SCM_ROLENGTH (str)
- ? SCM_BOOL_F
- : SCM_BOOL_T);
-}
-
-
-SCM_PROC(s_string_to_list, "string->list", 1, 0, 0, scm_string_to_list);
-#ifdef __STDC__
-SCM
-scm_string_to_list (SCM str)
-#else
-SCM
-scm_string_to_list (str)
- SCM str;
-#endif
-{
- long i;
- SCM res = SCM_EOL;
- unsigned char *src;
- SCM_ASSERT (SCM_NIMP (str) && SCM_ROSTRINGP (str), str, SCM_ARG1, s_string_to_list);
- src = SCM_ROUCHARS (str);
- for (i = SCM_ROLENGTH (str)-1;i >= 0;i--) res = scm_cons ((SCM)SCM_MAKICHR (src[i]), res);
- return res;
-}
-
-
-
-SCM_PROC(s_string_copy, "string-copy", 1, 0, 0, scm_string_copy);
-#ifdef __STDC__
-SCM
-scm_string_copy (SCM str)
-#else
-SCM
-scm_string_copy (str)
- SCM str;
-#endif
-{
- SCM_ASSERT (SCM_NIMP (str) && SCM_STRINGP (str), str, SCM_ARG1, s_string_copy);
- return scm_makfromstr (SCM_CHARS (str), (scm_sizet)SCM_LENGTH (str), 0);
-}
-
-
-SCM_PROC(s_string_fill_x, "string-fill!", 2, 0, 0, scm_string_fill_x);
-#ifdef __STDC__
-SCM
-scm_string_fill_x (SCM str, SCM chr)
-#else
-SCM
-scm_string_fill_x (str, chr)
- SCM str;
- SCM chr;
-#endif
-{
- register char *dst, c;
- register long k;
- SCM_ASSERT (SCM_NIMP (str) && SCM_STRINGP (str), str, SCM_ARG1, s_string_fill_x);
- SCM_ASSERT (SCM_ICHRP (chr), chr, SCM_ARG2, s_string_fill_x);
- c = SCM_ICHR (chr);
- dst = SCM_CHARS (str);
- for (k = SCM_LENGTH (str)-1;k >= 0;k--) dst[k] = c;
- return SCM_UNSPECIFIED;
-}
-
-
-#ifdef __STDC__
-void
-scm_init_strop (void)
-#else
-void
-scm_init_strop ()
-#endif
-{
-#include "strop.x"
-}
-
+/* classes: src_files */
+
+/* Copyright (C) 1994,1996,1997,1999,2000,2001 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. */
+
+
+
+\f
+
+#include <errno.h>
+
+#include "libguile/_scm.h"
+#include "libguile/chars.h"
+#include "libguile/strings.h"
+
+#include "libguile/validate.h"
+#include "libguile/strop.h"
+#include "libguile/read.h" /*For SCM_CASE_INSENSITIVE_P*/
+
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+
+\f
+
+/*
+xSCM_DEFINE (scm_i_index, "i-index", 2, 2, 0,
+ (SCM str, SCM chr, SCM frm, SCM to),
+ "@deftypefn {Internal C Function} {static int} scm_i_index (SCM *@var{str},\n"
+ "SCM @var{chr}, int @var{direction}, SCM @var{sub_start}, SCM @var{sub_end}, char *@var{why})
+ "This is a workhorse function that performs either an @code{index} or\n"
+ "@code{rindex} function, depending on the value of @var{direction}."
+*/
+/* implements index if direction > 0 otherwise rindex. */
+static long
+scm_i_index (SCM *str, SCM chr, int direction, SCM sub_start,
+ SCM sub_end, const char *why)
+{
+ unsigned char * p;
+ long x;
+ long lower;
+ long upper;
+ int ch;
+
+ SCM_ASSERT (SCM_STRINGP (*str), *str, SCM_ARG1, why);
+ SCM_ASSERT (SCM_CHARP (chr), chr, SCM_ARG2, why);
+
+ if (SCM_FALSEP (sub_start))
+ sub_start = SCM_MAKINUM (0);
+
+ SCM_ASSERT (SCM_INUMP (sub_start), sub_start, SCM_ARG3, why);
+ lower = SCM_INUM (sub_start);
+ if (lower < 0 || lower > SCM_STRING_LENGTH (*str))
+ scm_out_of_range (why, sub_start);
+
+ if (SCM_FALSEP (sub_end))
+ sub_end = SCM_MAKINUM (SCM_STRING_LENGTH (*str));
+
+ SCM_ASSERT (SCM_INUMP (sub_end), sub_end, SCM_ARG4, why);
+ upper = SCM_INUM (sub_end);
+ if (upper < SCM_INUM (sub_start) || upper > SCM_STRING_LENGTH (*str))
+ scm_out_of_range (why, sub_end);
+
+ if (direction > 0)
+ {
+ p = SCM_STRING_UCHARS (*str) + lower;
+ ch = SCM_CHAR (chr);
+
+ for (x = SCM_INUM (sub_start); x < upper; ++x, ++p)
+ if (*p == ch)
+ return x;
+ }
+ else
+ {
+ p = upper - 1 + SCM_STRING_UCHARS (*str);
+ ch = SCM_CHAR (chr);
+ for (x = upper - 1; x >= lower; --x, --p)
+ if (*p == ch)
+ return x;
+ }
+
+ return -1;
+}
+
+SCM_DEFINE (scm_string_index, "string-index", 2, 2, 0,
+ (SCM str, SCM chr, SCM frm, SCM to),
+ "Return the index of the first occurrence of @var{chr} in\n"
+ "@var{str}. The optional integer arguments @var{frm} and\n"
+ "@var{to} limit the search to a portion of the string. This\n"
+ "procedure essentially implements the @code{index} or\n"
+ "@code{strchr} functions from the C library.\n"
+ "\n"
+ "@lisp\n"
+ "(string-index \"weiner\" #\\e)\n"
+ "@result{} 1\n\n"
+ "(string-index \"weiner\" #\\e 2)\n"
+ "@result{} 4\n\n"
+ "(string-index \"weiner\" #\\e 2 4)\n"
+ "@result{} #f\n"
+ "@end lisp")
+#define FUNC_NAME s_scm_string_index
+{
+ long pos;
+
+ if (SCM_UNBNDP (frm))
+ frm = SCM_BOOL_F;
+ if (SCM_UNBNDP (to))
+ to = SCM_BOOL_F;
+ pos = scm_i_index (&str, chr, 1, frm, to, FUNC_NAME);
+ return (pos < 0
+ ? SCM_BOOL_F
+ : SCM_MAKINUM (pos));
+}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_string_rindex, "string-rindex", 2, 2, 0,
+ (SCM str, SCM chr, SCM frm, SCM to),
+ "Like @code{string-index}, but search from the right of the\n"
+ "string rather than from the left. This procedure essentially\n"
+ "implements the @code{rindex} or @code{strrchr} functions from\n"
+ "the C library.\n"
+ "\n"
+ "@lisp\n"
+ "(string-rindex \"weiner\" #\\e)\n"
+ "@result{} 4\n\n"
+ "(string-rindex \"weiner\" #\\e 2 4)\n"
+ "@result{} #f\n\n"
+ "(string-rindex \"weiner\" #\\e 2 5)\n"
+ "@result{} 4\n"
+ "@end lisp")
+#define FUNC_NAME s_scm_string_rindex
+{
+ long pos;
+
+ if (SCM_UNBNDP (frm))
+ frm = SCM_BOOL_F;
+ if (SCM_UNBNDP (to))
+ to = SCM_BOOL_F;
+ pos = scm_i_index (&str, chr, -1, frm, to, FUNC_NAME);
+ return (pos < 0
+ ? SCM_BOOL_F
+ : SCM_MAKINUM (pos));
+}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_substring_move_x, "substring-move!", 5, 0, 0,
+ (SCM str1, SCM start1, SCM end1, SCM str2, SCM start2),
+ "Copy the substring of @var{str1} bounded by @var{start1} and @var{end1}\n"
+ "into @var{str2} beginning at position @var{start2}.\n"
+ "@var{str1} and @var{str2} can be the same string.")
+#define FUNC_NAME s_scm_substring_move_x
+{
+ long s1, s2, e, len;
+
+ SCM_VALIDATE_STRING (1, str1);
+ SCM_VALIDATE_INUM_COPY (2, start1, s1);
+ SCM_VALIDATE_INUM_COPY (3, end1, e);
+ SCM_VALIDATE_STRING (4, str2);
+ SCM_VALIDATE_INUM_COPY (5, start2, s2);
+ len = e - s1;
+ SCM_ASSERT_RANGE (3, end1, len >= 0);
+ SCM_ASSERT_RANGE (2, start1, s1 <= SCM_STRING_LENGTH (str1) && s1 >= 0);
+ SCM_ASSERT_RANGE (5, start2, s2 <= SCM_STRING_LENGTH (str2) && s2 >= 0);
+ SCM_ASSERT_RANGE (3, end1, e <= SCM_STRING_LENGTH (str1) && e >= 0);
+ SCM_ASSERT_RANGE (5, start2, len+s2 <= SCM_STRING_LENGTH (str2));
+
+ SCM_SYSCALL(memmove((void *)(&(SCM_STRING_CHARS(str2)[s2])),
+ (void *)(&(SCM_STRING_CHARS(str1)[s1])),
+ len));
+
+ return scm_return_first(SCM_UNSPECIFIED, str1, str2);
+}
+#undef FUNC_NAME
+
+
+SCM_DEFINE (scm_substring_fill_x, "substring-fill!", 4, 0, 0,
+ (SCM str, SCM start, SCM end, SCM fill),
+ "Change every character in @var{str} between @var{start} and\n"
+ "@var{end} to @var{fill}.\n"
+ "\n"
+ "@lisp\n"
+ "(define y \"abcdefg\")\n"
+ "(substring-fill! y 1 3 #\\r)\n"
+ "y\n"
+ "@result{} \"arrdefg\"\n"
+ "@end lisp")
+#define FUNC_NAME s_scm_substring_fill_x
+{
+ long i, e;
+ char c;
+ SCM_VALIDATE_STRING (1, str);
+ SCM_VALIDATE_INUM_COPY (2, start, i);
+ SCM_VALIDATE_INUM_COPY (3, end, e);
+ SCM_VALIDATE_CHAR_COPY (4, fill, c);
+ SCM_ASSERT_RANGE (2, start, i <= SCM_STRING_LENGTH (str) && i >= 0);
+ SCM_ASSERT_RANGE (3, end, e <= SCM_STRING_LENGTH (str) && e >= 0);
+ while (i<e) SCM_STRING_CHARS (str)[i++] = c;
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+
+SCM_DEFINE (scm_string_null_p, "string-null?", 1, 0, 0,
+ (SCM str),
+ "Return @code{#t} if @var{str}'s length is zero, and\n"
+ "@code{#f} otherwise.\n"
+ "@lisp\n"
+ "(string-null? \"\") @result{} #t\n"
+ "y @result{} \"foo\"\n"
+ "(string-null? y) @result{} #f\n"
+ "@end lisp")
+#define FUNC_NAME s_scm_string_null_p
+{
+ SCM_VALIDATE_STRING (1, str);
+ return SCM_BOOL (SCM_STRING_LENGTH (str) == 0);
+}
+#undef FUNC_NAME
+
+
+SCM_DEFINE (scm_string_to_list, "string->list", 1, 0, 0,
+ (SCM str),
+ "Return a newly allocated list of the characters that make up\n"
+ "the given string @var{str}. @code{string->list} and\n"
+ "@code{list->string} are inverses as far as @samp{equal?} is\n"
+ "concerned.")
+#define FUNC_NAME s_scm_string_to_list
+{
+ long i;
+ SCM res = SCM_EOL;
+ unsigned char *src;
+ SCM_VALIDATE_STRING (1, str);
+ src = SCM_STRING_UCHARS (str);
+ for (i = SCM_STRING_LENGTH (str)-1;i >= 0;i--) res = scm_cons (SCM_MAKE_CHAR (src[i]), res);
+ return res;
+}
+#undef FUNC_NAME
+
+
+/* Helper function for the string copy and string conversion functions.
+ * No argument checking is performed. */
+static SCM
+string_copy (SCM str)
+{
+ const char* chars = SCM_STRING_CHARS (str);
+ size_t length = SCM_STRING_LENGTH (str);
+ SCM new_string = scm_mem2string (chars, length);
+ scm_remember_upto_here_1 (str);
+ return new_string;
+}
+
+
+SCM_DEFINE (scm_string_copy, "string-copy", 1, 0, 0,
+ (SCM str),
+ "Return a newly allocated copy of the given @var{string}.")
+#define FUNC_NAME s_scm_string_copy
+{
+ SCM_VALIDATE_STRING (1, str);
+
+ return string_copy (str);
+}
+#undef FUNC_NAME
+
+
+SCM_DEFINE (scm_string_fill_x, "string-fill!", 2, 0, 0,
+ (SCM str, SCM chr),
+ "Store @var{char} in every element of the given @var{string} and\n"
+ "return an unspecified value.")
+#define FUNC_NAME s_scm_string_fill_x
+{
+ register char *dst, c;
+ register long k;
+ SCM_VALIDATE_STRING_COPY (1, str, dst);
+ SCM_VALIDATE_CHAR_COPY (2, chr, c);
+ for (k = SCM_STRING_LENGTH (str)-1;k >= 0;k--) dst[k] = c;
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+
+/* Helper function for the string uppercase conversion functions.
+ * No argument checking is performed. */
+static SCM
+string_upcase_x (SCM v)
+{
+ unsigned long k;
+
+ for (k = 0; k < SCM_STRING_LENGTH (v); ++k)
+ SCM_STRING_UCHARS (v) [k] = scm_upcase (SCM_STRING_UCHARS (v) [k]);
+
+ return v;
+}
+
+
+SCM_DEFINE (scm_string_upcase_x, "string-upcase!", 1, 0, 0,
+ (SCM str),
+ "Destructively upcase every character in @var{str} and return\n"
+ "@var{str}.\n"
+ "@lisp\n"
+ "y @result{} \"arrdefg\"\n"
+ "(string-upcase! y) @result{} \"ARRDEFG\"\n"
+ "y @result{} \"ARRDEFG\"\n"
+ "@end lisp")
+#define FUNC_NAME s_scm_string_upcase_x
+{
+ SCM_VALIDATE_STRING (1, str);
+
+ return string_upcase_x (str);
+}
+#undef FUNC_NAME
+
+
+SCM_DEFINE (scm_string_upcase, "string-upcase", 1, 0, 0,
+ (SCM str),
+ "Return a freshly allocated string containing the characters of\n"
+ "@var{str} in upper case.")
+#define FUNC_NAME s_scm_string_upcase
+{
+ SCM_VALIDATE_STRING (1, str);
+
+ return string_upcase_x (string_copy (str));
+}
+#undef FUNC_NAME
+
+
+/* Helper function for the string lowercase conversion functions.
+ * No argument checking is performed. */
+static SCM
+string_downcase_x (SCM v)
+{
+ unsigned long k;
+
+ for (k = 0; k < SCM_STRING_LENGTH (v); ++k)
+ SCM_STRING_UCHARS (v) [k] = scm_downcase (SCM_STRING_UCHARS (v) [k]);
+
+ return v;
+}
+
+
+SCM_DEFINE (scm_string_downcase_x, "string-downcase!", 1, 0, 0,
+ (SCM str),
+ "Destructively downcase every character in @var{str} and return\n"
+ "@var{str}.\n"
+ "@lisp\n"
+ "y @result{} \"ARRDEFG\"\n"
+ "(string-downcase! y) @result{} \"arrdefg\"\n"
+ "y @result{} \"arrdefg\"\n"
+ "@end lisp")
+#define FUNC_NAME s_scm_string_downcase_x
+{
+ SCM_VALIDATE_STRING (1, str);
+
+ return string_downcase_x (str);
+}
+#undef FUNC_NAME
+
+
+SCM_DEFINE (scm_string_downcase, "string-downcase", 1, 0, 0,
+ (SCM str),
+ "Return a freshly allocation string containing the characters in\n"
+ "@var{str} in lower case.")
+#define FUNC_NAME s_scm_string_downcase
+{
+ SCM_VALIDATE_STRING (1, str);
+
+ return string_downcase_x (string_copy (str));
+}
+#undef FUNC_NAME
+
+
+/* Helper function for the string capitalization functions.
+ * No argument checking is performed. */
+static SCM
+string_capitalize_x (SCM str)
+{
+ unsigned char *sz;
+ long i, len;
+ int in_word=0;
+
+ len = SCM_STRING_LENGTH(str);
+ sz = SCM_STRING_UCHARS (str);
+ for(i=0; i<len; i++) {
+ if (!SCM_FALSEP (scm_char_alphabetic_p (SCM_MAKE_CHAR (sz[i])))) {
+ if(!in_word) {
+ sz[i] = scm_upcase(sz[i]);
+ in_word = 1;
+ } else {
+ sz[i] = scm_downcase(sz[i]);
+ }
+ }
+ else in_word = 0;
+ }
+ return str;
+}
+
+
+SCM_DEFINE (scm_string_capitalize_x, "string-capitalize!", 1, 0, 0,
+ (SCM str),
+ "Upcase the first character of every word in @var{str}\n"
+ "destructively and return @var{str}.\n"
+ "\n"
+ "@lisp\n"
+ "y @result{} \"hello world\"\n"
+ "(string-capitalize! y) @result{} \"Hello World\"\n"
+ "y @result{} \"Hello World\"\n"
+ "@end lisp")
+#define FUNC_NAME s_scm_string_capitalize_x
+{
+ SCM_VALIDATE_STRING (1, str);
+
+ return string_capitalize_x (str);
+}
+#undef FUNC_NAME
+
+
+SCM_DEFINE (scm_string_capitalize, "string-capitalize", 1, 0, 0,
+ (SCM str),
+ "Return a freshly allocated string with the characters in\n"
+ "@var{str}, where the first character of every word is\n"
+ "capitalized.")
+#define FUNC_NAME s_scm_string_capitalize
+{
+ SCM_VALIDATE_STRING (1, str);
+
+ return string_capitalize_x (string_copy (str));
+}
+#undef FUNC_NAME
+
+
+SCM_DEFINE (scm_string_split, "string-split", 2, 0, 0,
+ (SCM str, SCM chr),
+ "Split the string @var{str} into the a list of the substrings delimited\n"
+ "by appearances of the character @var{chr}. Note that an empty substring\n"
+ "between separator characters will result in an empty string in the\n"
+ "result list.\n"
+ "\n"
+ "@lisp\n"
+ "(string-split \"root:x:0:0:root:/root:/bin/bash\" #\\:)\n"
+ "@result{}\n"
+ "(\"root\" \"x\" \"0\" \"0\" \"root\" \"/root\" \"/bin/bash\")\n"
+ "\n"
+ "(string-split \"::\" #\\:)\n"
+ "@result{}\n"
+ "(\"\" \"\" \"\")\n"
+ "\n"
+ "(string-split \"\" #\\:)\n"
+ "@result{}\n"
+ "(\"\")\n"
+ "@end lisp")
+#define FUNC_NAME s_scm_string_split
+{
+ long idx, last_idx;
+ char * p;
+ int ch;
+ SCM res = SCM_EOL;
+
+ SCM_VALIDATE_STRING (1, str);
+ SCM_VALIDATE_CHAR (2, chr);
+
+ idx = SCM_STRING_LENGTH (str);
+ p = SCM_STRING_CHARS (str);
+ ch = SCM_CHAR (chr);
+ while (idx >= 0)
+ {
+ last_idx = idx;
+ while (idx > 0 && p[idx - 1] != ch)
+ idx--;
+ if (idx >= 0)
+ {
+ res = scm_cons (scm_mem2string (p + idx, last_idx - idx), res);
+ idx--;
+ }
+ }
+ scm_remember_upto_here_1 (str);
+ return res;
+}
+#undef FUNC_NAME
+
+
+SCM_DEFINE (scm_string_ci_to_symbol, "string-ci->symbol", 1, 0, 0,
+ (SCM str),
+ "Return the symbol whose name is @var{str}. @var{str} is\n"
+ "converted to lowercase before the conversion is done, if Guile\n"
+ "is currently reading symbols case-insensitively.")
+#define FUNC_NAME s_scm_string_ci_to_symbol
+{
+ return scm_string_to_symbol (SCM_CASE_INSENSITIVE_P
+ ? scm_string_downcase(str)
+ : str);
+}
+#undef FUNC_NAME
+
+void
+scm_init_strop ()
+{
+#include "libguile/strop.x"
+}
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/
HCoop / bpt / guile.git / blobdiff