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352 lines
9 KiB
C
352 lines
9 KiB
C
/* classes: src_files */
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/* Copyright (C) 1994, 1996, 1997, 1999 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this software; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA */
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#include <stdio.h>
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#include "_scm.h"
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#include "chars.h"
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#include "strop.h"
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#include "read.h" /*For SCM_CASE_INSENSITIVE_P*/
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/* implements index if direction > 0 otherwise rindex. */
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static int
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scm_i_index (SCM *str, SCM chr, int direction, SCM sub_start,
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SCM sub_end, const char *why)
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{
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unsigned char * p;
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int x;
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int lower;
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int upper;
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int ch;
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SCM_ASSERT (SCM_NIMP (*str) && SCM_ROSTRINGP (*str), *str, SCM_ARG1, why);
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SCM_ASSERT (SCM_ICHRP (chr), chr, SCM_ARG2, why);
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if (sub_start == SCM_BOOL_F)
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sub_start = SCM_MAKINUM (0);
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SCM_ASSERT (SCM_INUMP (sub_start), sub_start, SCM_ARG3, why);
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lower = SCM_INUM (sub_start);
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if (lower < 0
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|| lower > SCM_ROLENGTH (*str))
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scm_out_of_range (why, sub_start);
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if (sub_end == SCM_BOOL_F)
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sub_end = SCM_MAKINUM (SCM_ROLENGTH (*str));
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SCM_ASSERT (SCM_INUMP (sub_end), sub_end, SCM_ARG4, why);
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upper = SCM_INUM (sub_end);
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if (upper < SCM_INUM (sub_start)
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|| upper > SCM_ROLENGTH (*str))
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scm_out_of_range (why, sub_end);
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if (direction > 0)
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{
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p = (unsigned char *)SCM_ROCHARS (*str) + lower;
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ch = SCM_ICHR (chr);
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for (x = SCM_INUM (sub_start); x < upper; ++x, ++p)
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if (*p == ch)
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return x;
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}
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else
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{
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p = upper - 1 + (unsigned char *)SCM_ROCHARS (*str);
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ch = SCM_ICHR (chr);
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for (x = upper - 1; x >= lower; --x, --p)
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if (*p == ch)
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return x;
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}
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return -1;
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}
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SCM_PROC(s_string_index, "string-index", 2, 2, 0, scm_string_index);
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SCM
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scm_string_index (SCM str, SCM chr, SCM frm, SCM to)
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{
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int pos;
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if (frm == SCM_UNDEFINED)
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frm = SCM_BOOL_F;
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if (to == SCM_UNDEFINED)
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to = SCM_BOOL_F;
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pos = scm_i_index (&str, chr, 1, frm, to, s_string_index);
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return (pos < 0
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? SCM_BOOL_F
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: SCM_MAKINUM (pos));
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}
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SCM_PROC(s_string_rindex, "string-rindex", 2, 2, 0, scm_string_rindex);
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SCM
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scm_string_rindex (SCM str, SCM chr, SCM frm, SCM to)
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{
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int pos;
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if (frm == SCM_UNDEFINED)
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frm = SCM_BOOL_F;
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if (to == SCM_UNDEFINED)
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to = SCM_BOOL_F;
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pos = scm_i_index (&str, chr, -1, frm, to, s_string_rindex);
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return (pos < 0
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? SCM_BOOL_F
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: SCM_MAKINUM (pos));
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}
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SCM_PROC(s_substring_move_left_x, "substring-move-left!", 5, 0, 0, scm_substring_move_x);
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SCM_PROC(s_substring_move_right_x, "substring-move-right!", 5, 0, 0, scm_substring_move_x);
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SCM_PROC(s_substring_move_x, "substring-move!", 5, 0, 0, scm_substring_move_x);
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SCM
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scm_substring_move_x (SCM str1, SCM start1, SCM end1,
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SCM str2, SCM start2)
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{
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long s1, s2, e, len;
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SCM_ASSERT (SCM_NIMP (str1) && SCM_STRINGP (str1), str1,
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SCM_ARG1, s_substring_move_x);
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SCM_ASSERT (SCM_INUMP (start1), start1, SCM_ARG2, s_substring_move_x);
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SCM_ASSERT (SCM_INUMP (end1), end1, SCM_ARG3, s_substring_move_x);
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SCM_ASSERT (SCM_NIMP (str2) && SCM_STRINGP (str2), str2,
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SCM_ARG4, s_substring_move_x);
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SCM_ASSERT (SCM_INUMP (start2), start2, SCM_ARG5, s_substring_move_x);
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s1 = SCM_INUM (start1), s2 = SCM_INUM (start2), e = SCM_INUM (end1);
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len = e - s1;
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SCM_ASSERT (len >= 0, end1, SCM_OUTOFRANGE, s_substring_move_x);
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SCM_ASSERT (s1 <= SCM_LENGTH (str1) && s1 >= 0, start1,
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SCM_OUTOFRANGE, s_substring_move_x);
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SCM_ASSERT (s2 <= SCM_LENGTH (str2) && s2 >= 0, start2,
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SCM_OUTOFRANGE, s_substring_move_x);
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SCM_ASSERT (e <= SCM_LENGTH (str1) && e >= 0, end1,
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SCM_OUTOFRANGE, s_substring_move_x);
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SCM_ASSERT (len+s2 <= SCM_LENGTH (str2), start2,
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SCM_OUTOFRANGE, s_substring_move_x);
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SCM_SYSCALL(memmove((void *)(&(SCM_CHARS(str2)[s2])),
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(void *)(&(SCM_CHARS(str1)[s1])),
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len));
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return scm_return_first(SCM_UNSPECIFIED, str1, str2);
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}
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SCM_PROC(s_substring_fill_x, "substring-fill!", 4, 0, 0, scm_substring_fill_x);
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SCM
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scm_substring_fill_x (SCM str, SCM start, SCM end, SCM fill)
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{
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long i, e;
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char c;
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SCM_ASSERT (SCM_NIMP (str) && SCM_STRINGP (str), str, SCM_ARG1, s_substring_fill_x);
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SCM_ASSERT (SCM_INUMP (start), start, SCM_ARG2, s_substring_fill_x);
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SCM_ASSERT (SCM_INUMP (end), end, SCM_ARG3, s_substring_fill_x);
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SCM_ASSERT (SCM_ICHRP (fill), fill, SCM_ARG4, s_substring_fill_x);
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i = SCM_INUM (start), e = SCM_INUM (end);c = SCM_ICHR (fill);
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SCM_ASSERT (i <= SCM_LENGTH (str) && i >= 0, start,
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SCM_OUTOFRANGE, s_substring_fill_x);
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SCM_ASSERT (e <= SCM_LENGTH (str) && e >= 0, end,
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SCM_OUTOFRANGE, s_substring_fill_x);
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while (i<e) SCM_CHARS (str)[i++] = c;
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return SCM_UNSPECIFIED;
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}
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SCM_PROC(s_string_null_p, "string-null?", 1, 0, 0, scm_string_null_p);
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SCM
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scm_string_null_p (str)
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SCM str;
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{
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SCM_ASSERT (SCM_NIMP (str) && SCM_ROSTRINGP (str), str, SCM_ARG1, s_string_null_p);
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return (SCM_ROLENGTH (str)
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? SCM_BOOL_F
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: SCM_BOOL_T);
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}
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SCM_PROC(s_string_to_list, "string->list", 1, 0, 0, scm_string_to_list);
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SCM
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scm_string_to_list (str)
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SCM str;
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{
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long i;
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SCM res = SCM_EOL;
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unsigned char *src;
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SCM_ASSERT (SCM_NIMP (str) && SCM_ROSTRINGP (str), str, SCM_ARG1, s_string_to_list);
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src = SCM_ROUCHARS (str);
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for (i = SCM_ROLENGTH (str)-1;i >= 0;i--) res = scm_cons ((SCM)SCM_MAKICHR (src[i]), res);
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return res;
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}
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SCM_PROC(s_string_copy, "string-copy", 1, 0, 0, scm_string_copy);
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SCM
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scm_string_copy (str)
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SCM str;
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{
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SCM_ASSERT (SCM_NIMP (str) && (SCM_STRINGP (str) || SCM_SUBSTRP (str)),
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str, SCM_ARG1, s_string_copy);
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return scm_makfromstr (SCM_ROCHARS (str), (scm_sizet)SCM_ROLENGTH (str), 0);
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}
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SCM_PROC(s_string_fill_x, "string-fill!", 2, 0, 0, scm_string_fill_x);
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SCM
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scm_string_fill_x (str, chr)
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SCM str;
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SCM chr;
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{
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register char *dst, c;
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register long k;
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SCM_ASSERT (SCM_NIMP (str) && SCM_STRINGP (str), str, SCM_ARG1, s_string_fill_x);
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SCM_ASSERT (SCM_ICHRP (chr), chr, SCM_ARG2, s_string_fill_x);
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c = SCM_ICHR (chr);
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dst = SCM_CHARS (str);
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for (k = SCM_LENGTH (str)-1;k >= 0;k--) dst[k] = c;
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return SCM_UNSPECIFIED;
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}
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SCM_PROC(s_string_upcase_x, "string-upcase!", 1, 0, 0, scm_string_upcase_x);
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SCM
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scm_string_upcase_x (v)
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SCM v;
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{
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register long k;
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register unsigned char *cs;
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SCM_ASRTGO (SCM_NIMP (v), badarg1);
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k = SCM_LENGTH (v);
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switch SCM_TYP7
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(v)
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{
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case scm_tc7_string:
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cs = SCM_UCHARS (v);
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while (k--)
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cs[k] = scm_upcase(cs[k]);
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break;
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default:
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badarg1:scm_wta (v, (char *) SCM_ARG1, s_string_upcase_x);
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}
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return v;
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}
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SCM_PROC(s_string_upcase, "string-upcase", 1, 0, 0, scm_string_upcase);
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SCM
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scm_string_upcase(SCM str)
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{
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return scm_string_upcase_x(scm_string_copy(str));
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}
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SCM_PROC(s_string_downcase_x, "string-downcase!", 1, 0, 0, scm_string_downcase_x);
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SCM
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scm_string_downcase_x (v)
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SCM v;
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{
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register long k;
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register unsigned char *cs;
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SCM_ASRTGO (SCM_NIMP (v), badarg1);
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k = SCM_LENGTH (v);
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switch (SCM_TYP7(v))
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{
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case scm_tc7_string:
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cs = SCM_UCHARS (v);
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while (k--)
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cs[k] = scm_downcase(cs[k]);
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break;
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default:
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badarg1:scm_wta (v, (char *) SCM_ARG1, s_string_downcase_x);
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}
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return v;
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}
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SCM_PROC(s_string_downcase, "string-downcase", 1, 0, 0, scm_string_downcase);
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SCM
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scm_string_downcase(SCM str)
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{
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SCM_ASSERT(SCM_NIMP(str) && SCM_STRINGP(str), str, SCM_ARG1, s_string_downcase);
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return scm_string_downcase_x(scm_string_copy(str));
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}
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SCM_PROC(s_string_capitalize_x, "string-capitalize!", 1, 0, 0, scm_string_capitalize_x);
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SCM
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scm_string_capitalize_x (SCM s)
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{
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char *str;
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int i, len, in_word=0;
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SCM_ASSERT(SCM_NIMP(s) && SCM_STRINGP(s), s, SCM_ARG1, s_string_capitalize_x);
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len = SCM_LENGTH(s);
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str = SCM_CHARS(s);
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for(i=0; i<len; i++) {
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if(SCM_NFALSEP(scm_char_alphabetic_p(SCM_MAKICHR(str[i])))) {
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if(!in_word) {
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str[i] = scm_upcase(str[i]);
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in_word = 1;
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} else {
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str[i] = scm_downcase(str[i]);
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}
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}
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else in_word = 0;
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}
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return s;
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}
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SCM_PROC(s_string_capitalize, "string-capitalize", 1, 0, 0, scm_string_capitalize);
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SCM
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scm_string_capitalize(SCM s)
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{
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SCM_ASSERT((SCM_NIMP(s)) && (SCM_STRINGP(s)), s, SCM_ARG1, s_string_capitalize);
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return scm_string_capitalize_x(scm_string_copy(s));
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}
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SCM_PROC(s_string_ci_to_symbol, "string-ci->symbol", 1, 0, 0, scm_string_ci_to_symbol);
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SCM
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scm_string_ci_to_symbol(SCM str)
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{
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return scm_string_to_symbol (SCM_CASE_INSENSITIVE_P
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? scm_string_downcase(str)
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: str);
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}
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void
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scm_init_strop ()
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{
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#include "strop.x"
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}
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