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-rw-r--r--libguile/strop.c368
1 files changed, 368 insertions, 0 deletions
diff --git a/libguile/strop.c b/libguile/strop.c
new file mode 100644
index 000000000..366d249da
--- /dev/null
+++ b/libguile/strop.c
@@ -0,0 +1,368 @@
+/* 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. */
+
+
+
+#include <stdio.h>
+#include "_scm.h"
+
+
+
+#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"
+}
+