-/* srfi-13.c --- SRFI-13 procedures for Guile
- *
- * Copyright (C) 2001, 2004 Free Software Foundation, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-
-#include <string.h>
-#include <ctype.h>
-
-#include <libguile.h>
-
-#include "srfi-13.h"
-#include "srfi-14.h"
-
-SCM_DEFINE (scm_string_any, "string-any", 2, 2, 0,
- (SCM pred, SCM s, SCM start, SCM end),
- "Check if the predicate @var{pred} is true for any character in\n"
- "the string @var{s}, proceeding from left (index @var{start}) to\n"
- "right (index @var{end}). If @code{string-any} returns true,\n"
- "the returned true value is the one produced by the first\n"
- "successful application of @var{pred}.")
-#define FUNC_NAME s_scm_string_any
-{
- char * cstr;
- int cstart, cend;
- SCM res;
-
- SCM_VALIDATE_PROC (1, pred);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s, cstr,
- 3, start, cstart,
- 4, end, cend);
- cstr += cstart;
- while (cstart < cend)
- {
- res = scm_call_1 (pred, SCM_MAKE_CHAR (*cstr));
- if (scm_is_true (res))
- return res;
- cstr++;
- cstart++;
- }
- return SCM_BOOL_F;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_every, "string-every", 2, 2, 0,
- (SCM pred, SCM s, SCM start, SCM end),
- "Check if the predicate @var{pred} is true for every character\n"
- "in the string @var{s}, proceeding from left (index @var{start})\n"
- "to right (index @var{end}). If @code{string-every} returns\n"
- "true, the returned true value is the one produced by the final\n"
- "application of @var{pred} to the last character of @var{s}.")
-#define FUNC_NAME s_scm_string_every
-{
- char * cstr;
- int cstart, cend;
- SCM res;
-
- SCM_VALIDATE_PROC (1, pred);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s, cstr,
- 3, start, cstart,
- 4, end, cend);
- res = SCM_BOOL_F;
- cstr += cstart;
- while (cstart < cend)
- {
- res = scm_call_1 (pred, SCM_MAKE_CHAR (*cstr));
- if (scm_is_false (res))
- return res;
- cstr++;
- cstart++;
- }
- return res;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_tabulate, "string-tabulate", 2, 0, 0,
- (SCM proc, SCM len),
- "@var{proc} is an integer->char procedure. Construct a string\n"
- "of size @var{len} by applying @var{proc} to each index to\n"
- "produce the corresponding string element. The order in which\n"
- "@var{proc} is applied to the indices is not specified.")
-#define FUNC_NAME s_scm_string_tabulate
-{
- int clen, i;
- SCM res;
- SCM ch;
- char * p;
-
- SCM_VALIDATE_PROC (1, proc);
- SCM_VALIDATE_INUM_COPY (2, len, clen);
- SCM_ASSERT_RANGE (2, len, clen >= 0);
-
- res = scm_allocate_string (clen);
- p = SCM_STRING_CHARS (res);
- i = 0;
- while (i < clen)
- {
- ch = scm_call_1 (proc, SCM_MAKINUM (i));
- if (!SCM_CHARP (ch))
- SCM_MISC_ERROR ("procedure ~S returned non-char", scm_list_1 (proc));
- *p++ = SCM_CHAR (ch);
- i++;
- }
- return res;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_to_listS, "string->list", 1, 2, 0,
- (SCM str, SCM start, SCM end),
- "Convert the string @var{str} into a list of characters.")
-#define FUNC_NAME s_scm_string_to_listS
-{
- char * cstr;
- int cstart, cend;
- SCM result = SCM_EOL;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, str, cstr,
- 2, start, cstart,
- 3, end, cend);
- while (cstart < cend)
- {
- cend--;
- result = scm_cons (SCM_MAKE_CHAR (cstr[cend]), result);
- }
- return result;
-}
-#undef FUNC_NAME
-
-SCM_DEFINE (scm_reverse_list_to_string, "reverse-list->string", 1, 0, 0,
- (SCM chrs),
- "An efficient implementation of @code{(compose string->list\n"
- "reverse)}:\n"
- "\n"
- "@smalllisp\n"
- "(reverse-list->string '(#\a #\B #\c)) @result{} \"cBa\"\n"
- "@end smalllisp")
-#define FUNC_NAME s_scm_reverse_list_to_string
-{
- SCM result;
- long i = scm_ilength (chrs);
-
- if (i < 0)
- SCM_WRONG_TYPE_ARG (1, chrs);
- result = scm_allocate_string (i);
-
- {
- unsigned char *data = SCM_STRING_UCHARS (result) + i;
-
- while (!SCM_NULLP (chrs))
- {
- SCM elt = SCM_CAR (chrs);
-
- SCM_VALIDATE_CHAR (SCM_ARGn, elt);
- data--;
- *data = SCM_CHAR (elt);
- chrs = SCM_CDR (chrs);
- }
- }
- return result;
-}
-#undef FUNC_NAME
-
-
-SCM_SYMBOL (scm_sym_infix, "infix");
-SCM_SYMBOL (scm_sym_strict_infix, "strict-infix");
-SCM_SYMBOL (scm_sym_suffix, "suffix");
-SCM_SYMBOL (scm_sym_prefix, "prefix");
-
-SCM_DEFINE (scm_string_join, "string-join", 1, 2, 0,
- (SCM ls, SCM delimiter, SCM grammar),
- "Append the string in the string list @var{ls}, using the string\n"
- "@var{delim} as a delimiter between the elements of @var{ls}.\n"
- "@var{grammar} is a symbol which specifies how the delimiter is\n"
- "placed between the strings, and defaults to the symbol\n"
- "@code{infix}.\n"
- "\n"
- "@table @code\n"
- "@item infix\n"
- "Insert the separator between list elements. An empty string\n"
- "will produce an empty list.\n"
- "@item string-infix\n"
- "Like @code{infix}, but will raise an error if given the empty\n"
- "list.\n"
- "@item suffix\n"
- "Insert the separator after every list element.\n"
- "@item prefix\n"
- "Insert the separator before each list element.\n"
- "@end table")
-#define FUNC_NAME s_scm_string_join
-{
-#define GRAM_INFIX 0
-#define GRAM_STRICT_INFIX 1
-#define GRAM_SUFFIX 2
-#define GRAM_PREFIX 3
- SCM tmp;
- SCM result;
- int gram = GRAM_INFIX;
- int del_len = 0, extra_len = 0;
- int len = 0;
- char * p;
- long strings = scm_ilength (ls);
-
- /* Validate the string list. */
- if (strings < 0)
- SCM_WRONG_TYPE_ARG (1, ls);
-
- /* Validate the delimiter and record its length. */
- if (SCM_UNBNDP (delimiter))
- {
- delimiter = scm_makfrom0str (" ");
- del_len = 1;
- }
- else
- {
- SCM_VALIDATE_STRING (2, delimiter);
- del_len = SCM_STRING_LENGTH (delimiter);
- }
-
- /* Validate the grammar symbol and remember the grammar. */
- if (SCM_UNBNDP (grammar))
- gram = GRAM_INFIX;
- else if (SCM_EQ_P (grammar, scm_sym_infix))
- gram = GRAM_INFIX;
- else if (SCM_EQ_P (grammar, scm_sym_strict_infix))
- gram = GRAM_STRICT_INFIX;
- else if (SCM_EQ_P (grammar, scm_sym_suffix))
- gram = GRAM_SUFFIX;
- else if (SCM_EQ_P (grammar, scm_sym_prefix))
- gram = GRAM_PREFIX;
- else
- SCM_WRONG_TYPE_ARG (3, grammar);
-
- /* Check grammar constraints and calculate the space required for
- the delimiter(s). */
- switch (gram)
- {
- case GRAM_INFIX:
- if (!SCM_NULLP (ls))
- extra_len = (strings > 0) ? ((strings - 1) * del_len) : 0;
- break;
- case GRAM_STRICT_INFIX:
- if (strings == 0)
- SCM_MISC_ERROR ("strict-infix grammar requires non-empty list",
- SCM_EOL);
- extra_len = (strings - 1) * del_len;
- break;
- default:
- extra_len = strings * del_len;
- break;
- }
-
- tmp = ls;
- while (SCM_CONSP (tmp))
- {
- SCM elt = SCM_CAR (tmp);
- SCM_VALIDATE_STRING (1, elt);
- len += SCM_STRING_LENGTH (elt);
- tmp = SCM_CDR (tmp);
- }
-
- result = scm_allocate_string (len + extra_len);
- p = SCM_STRING_CHARS (result);
-
- tmp = ls;
- switch (gram)
- {
- case GRAM_INFIX:
- case GRAM_STRICT_INFIX:
- while (!SCM_NULLP (tmp))
- {
- SCM elt = SCM_CAR (tmp);
- memmove (p, SCM_STRING_CHARS (elt),
- SCM_STRING_LENGTH (elt) * sizeof (char));
- p += SCM_STRING_LENGTH (elt);
- if (!SCM_NULLP (SCM_CDR (tmp)) && del_len > 0)
- {
- memmove (p, SCM_STRING_CHARS (delimiter),
- SCM_STRING_LENGTH (delimiter) * sizeof (char));
- p += del_len;
- }
- tmp = SCM_CDR (tmp);
- }
- break;
- case GRAM_SUFFIX:
- while (!SCM_NULLP (tmp))
- {
- SCM elt = SCM_CAR (tmp);
- memmove (p, SCM_STRING_CHARS (elt),
- SCM_STRING_LENGTH (elt) * sizeof (char));
- p += SCM_STRING_LENGTH (elt);
- if (del_len > 0)
- {
- memmove (p, SCM_STRING_CHARS (delimiter),
- SCM_STRING_LENGTH (delimiter) * sizeof (char));
- p += del_len;
- }
- tmp = SCM_CDR (tmp);
- }
- break;
- case GRAM_PREFIX:
- while (!SCM_NULLP (tmp))
- {
- SCM elt = SCM_CAR (tmp);
- if (del_len > 0)
- {
- memmove (p, SCM_STRING_CHARS (delimiter),
- SCM_STRING_LENGTH (delimiter) * sizeof (char));
- p += del_len;
- }
- memmove (p, SCM_STRING_CHARS (elt),
- SCM_STRING_LENGTH (elt) * sizeof (char));
- p += SCM_STRING_LENGTH (elt);
- tmp = SCM_CDR (tmp);
- }
- break;
- }
- return result;
-#undef GRAM_INFIX
-#undef GRAM_STRICT_INFIX
-#undef GRAM_SUFFIX
-#undef GRAM_PREFIX
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_copyS, "string-copy", 1, 2, 0,
- (SCM str, SCM start, SCM end),
- "Return a freshly allocated copy of the string @var{str}. If\n"
- "given, @var{start} and @var{end} delimit the portion of\n"
- "@var{str} which is copied.")
-#define FUNC_NAME s_scm_string_copyS
-{
- char * cstr;
- int cstart, cend;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, str, cstr,
- 2, start, cstart,
- 3, end, cend);
- return scm_mem2string (cstr + cstart, cend - cstart);
-
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_substring_shared, "substring/shared", 2, 1, 0,
- (SCM str, SCM start, SCM end),
- "Like @code{substring}, but the result may share memory with the\n"
- "argument @var{str}.")
-#define FUNC_NAME s_scm_substring_shared
-{
- SCM_VALIDATE_STRING (1, str);
- SCM_VALIDATE_INUM (2, start);
- if (SCM_UNBNDP (end))
- end = SCM_MAKINUM (SCM_STRING_LENGTH (str));
- else
- SCM_VALIDATE_INUM (3, end);
- if (SCM_INUM (start) == 0 &&
- SCM_INUM (end) == SCM_STRING_LENGTH (str))
- return str;
- return scm_substring (str, start, end);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_copy_x, "string-copy!", 3, 2, 0,
- (SCM target, SCM tstart, SCM s, SCM start, SCM end),
- "Copy the sequence of characters from index range [@var{start},\n"
- "@var{end}) in string @var{s} to string @var{target}, beginning\n"
- "at index @var{tstart}. The characters are copied left-to-right\n"
- "or right-to-left as needed -- the copy is guaranteed to work,\n"
- "even if @var{target} and @var{s} are the same string. It is an\n"
- "error if the copy operation runs off the end of the target\n"
- "string.")
-#define FUNC_NAME s_scm_string_copy_x
-{
- char * cstr, * ctarget;
- int cstart, cend, ctstart, dummy;
- int len;
- SCM sdummy = SCM_UNDEFINED;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, target, ctarget,
- 2, tstart, ctstart,
- 2, sdummy, dummy);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (3, s, cstr,
- 4, start, cstart,
- 5, end, cend);
- len = cend - cstart;
- SCM_ASSERT_RANGE (3, s, len <= SCM_STRING_LENGTH (target) - ctstart);
-
- memmove (SCM_STRING_CHARS (target) + ctstart,
- SCM_STRING_CHARS (s) + cstart,
- len * sizeof (char));
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_take, "string-take", 2, 0, 0,
- (SCM s, SCM n),
- "Return the @var{n} first characters of @var{s}.")
-#define FUNC_NAME s_scm_string_take
-{
- char * cstr;
- int cn;
-
- SCM_VALIDATE_STRING_COPY (1, s, cstr);
- SCM_VALIDATE_INUM_COPY (2, n, cn);
- SCM_ASSERT_RANGE (2, n, cn >= 0 && cn <= SCM_STRING_LENGTH (s));
-
- return scm_mem2string (cstr, cn);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_drop, "string-drop", 2, 0, 0,
- (SCM s, SCM n),
- "Return all but the first @var{n} characters of @var{s}.")
-#define FUNC_NAME s_scm_string_drop
-{
- char * cstr;
- int cn;
-
- SCM_VALIDATE_STRING_COPY (1, s, cstr);
- SCM_VALIDATE_INUM_COPY (2, n, cn);
- SCM_ASSERT_RANGE (2, n, cn >= 0 && cn <= SCM_STRING_LENGTH (s));
-
- return scm_mem2string (cstr + cn, SCM_STRING_LENGTH (s) - cn);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_take_right, "string-take-right", 2, 0, 0,
- (SCM s, SCM n),
- "Return the @var{n} last characters of @var{s}.")
-#define FUNC_NAME s_scm_string_take_right
-{
- char * cstr;
- int cn;
-
- SCM_VALIDATE_STRING_COPY (1, s, cstr);
- SCM_VALIDATE_INUM_COPY (2, n, cn);
- SCM_ASSERT_RANGE (2, n, cn >= 0 && cn <= SCM_STRING_LENGTH (s));
-
- return scm_mem2string (cstr + SCM_STRING_LENGTH (s) - cn, cn);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_drop_right, "string-drop-right", 2, 0, 0,
- (SCM s, SCM n),
- "Return all but the last @var{n} characters of @var{s}.")
-#define FUNC_NAME s_scm_string_drop_right
-{
- char * cstr;
- int cn;
-
- SCM_VALIDATE_STRING_COPY (1, s, cstr);
- SCM_VALIDATE_INUM_COPY (2, n, cn);
- SCM_ASSERT_RANGE (2, n, cn >= 0 && cn <= SCM_STRING_LENGTH (s));
-
- return scm_mem2string (cstr, SCM_STRING_LENGTH (s) - cn);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_pad, "string-pad", 2, 3, 0,
- (SCM s, SCM len, SCM chr, SCM start, SCM end),
- "Take that characters from @var{start} to @var{end} from the\n"
- "string @var{s} and return a new string, right-padded by the\n"
- "character @var{chr} to length @var{len}. If the resulting\n"
- "string is longer than @var{len}, it is truncated on the right.")
-#define FUNC_NAME s_scm_string_pad
-{
- char cchr;
- char * cstr;
- int cstart, cend, clen;
- SCM result;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s, cstr,
- 4, start, cstart,
- 5, end, cend);
- SCM_VALIDATE_INUM_COPY (2, len, clen);
- if (SCM_UNBNDP (chr))
- cchr = ' ';
- else
- {
- SCM_VALIDATE_CHAR (3, chr);
- cchr = SCM_CHAR (chr);
- }
- result = scm_allocate_string (clen);
- if (clen < (cend - cstart))
- memmove (SCM_STRING_CHARS (result),
- cstr + cend - clen,
- clen * sizeof (char));
- else
- {
- memset (SCM_STRING_CHARS (result), cchr,
- (clen - (cend - cstart)) * sizeof (char));
- memmove (SCM_STRING_CHARS (result) + (clen - (cend - cstart)),
- cstr + cstart,
- (cend - cstart) * sizeof (char));
- }
- return result;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_pad_right, "string-pad-right", 2, 3, 0,
- (SCM s, SCM len, SCM chr, SCM start, SCM end),
- "Take that characters from @var{start} to @var{end} from the\n"
- "string @var{s} and return a new string, left-padded by the\n"
- "character @var{chr} to length @var{len}. If the resulting\n"
- "string is longer than @var{len}, it is truncated on the left.")
-#define FUNC_NAME s_scm_string_pad_right
-{
- char cchr;
- char * cstr;
- int cstart, cend, clen;
- SCM result;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s, cstr,
- 4, start, cstart,
- 5, end, cend);
- SCM_VALIDATE_INUM_COPY (2, len, clen);
- if (SCM_UNBNDP (chr))
- cchr = ' ';
- else
- {
- SCM_VALIDATE_CHAR (3, chr);
- cchr = SCM_CHAR (chr);
- }
- result = scm_allocate_string (clen);
- if (clen < (cend - cstart))
- memmove (SCM_STRING_CHARS (result), cstr + cstart, clen * sizeof (char));
- else
- {
- memset (SCM_STRING_CHARS (result) + (cend - cstart),
- cchr, (clen - (cend - cstart)) * sizeof (char));
- memmove (SCM_STRING_CHARS (result), cstr + cstart,
- (cend - cstart) * sizeof (char));
- }
- return result;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_trim, "string-trim", 1, 3, 0,
- (SCM s, SCM char_pred, SCM start, SCM end),
- "Trim @var{s} by skipping over all characters on the left\n"
- "that satisfy the parameter @var{char_pred}:\n"
- "\n"
- "@itemize @bullet\n"
- "@item\n"
- "if it is the character @var{ch}, characters equal to\n"
- "@var{ch} are trimmed,\n"
- "\n"
- "@item\n"
- "if it is a procedure @var{pred} characters that\n"
- "satisfy @var{pred} are trimmed,\n"
- "\n"
- "@item\n"
- "if it is a character set, characters in that set are trimmed.\n"
- "@end itemize\n"
- "\n"
- "If called without a @var{char_pred} argument, all whitespace is\n"
- "trimmed.")
-#define FUNC_NAME s_scm_string_trim
-{
- char * cstr;
- int cstart, cend;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s, cstr,
- 3, start, cstart,
- 4, end, cend);
- if (SCM_UNBNDP (char_pred))
- {
- while (cstart < cend)
- {
- if (!isspace((int) (unsigned char) cstr[cstart]))
- break;
- cstart++;
- }
- }
- else if (SCM_CHARP (char_pred))
- {
- char chr = SCM_CHAR (char_pred);
- while (cstart < cend)
- {
- if (chr != cstr[cstart])
- break;
- cstart++;
- }
- }
- else if (SCM_CHARSETP (char_pred))
- {
- while (cstart < cend)
- {
- if (!SCM_CHARSET_GET (char_pred, cstr[cstart]))
- break;
- cstart++;
- }
- }
- else
- {
- SCM_VALIDATE_PROC (2, char_pred);
- while (cstart < cend)
- {
- SCM res;
-
- res = scm_call_1 (char_pred, SCM_MAKE_CHAR (cstr[cstart]));
- if (scm_is_false (res))
- break;
- cstart++;
- }
- }
- return scm_mem2string (cstr + cstart, cend - cstart);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_trim_right, "string-trim-right", 1, 3, 0,
- (SCM s, SCM char_pred, SCM start, SCM end),
- "Trim @var{s} by skipping over all characters on the rightt\n"
- "that satisfy the parameter @var{char_pred}:\n"
- "\n"
- "@itemize @bullet\n"
- "@item\n"
- "if it is the character @var{ch}, characters equal to @var{ch}\n"
- "are trimmed,\n"
- "\n"
- "@item\n"
- "if it is a procedure @var{pred} characters that satisfy\n"
- "@var{pred} are trimmed,\n"
- "\n"
- "@item\n"
- "if it is a character sets, all characters in that set are\n"
- "trimmed.\n"
- "@end itemize\n"
- "\n"
- "If called without a @var{char_pred} argument, all whitespace is\n"
- "trimmed.")
-#define FUNC_NAME s_scm_string_trim_right
-{
- char * cstr;
- int cstart, cend;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s, cstr,
- 3, start, cstart,
- 4, end, cend);
- if (SCM_UNBNDP (char_pred))
- {
- while (cstart < cend)
- {
- if (!isspace((int) (unsigned char) cstr[cend - 1]))
- break;
- cend--;
- }
- }
- else if (SCM_CHARP (char_pred))
- {
- char chr = SCM_CHAR (char_pred);
- while (cstart < cend)
- {
- if (chr != cstr[cend - 1])
- break;
- cend--;
- }
- }
- else if (SCM_CHARSETP (char_pred))
- {
- while (cstart < cend)
- {
- if (!SCM_CHARSET_GET (char_pred, cstr[cend - 1]))
- break;
- cend--;
- }
- }
- else
- {
- SCM_VALIDATE_PROC (2, char_pred);
- while (cstart < cend)
- {
- SCM res;
-
- res = scm_call_1 (char_pred, SCM_MAKE_CHAR (cstr[cend - 1]));
- if (scm_is_false (res))
- break;
- cend--;
- }
- }
- return scm_mem2string (cstr + cstart, cend - cstart);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_trim_both, "string-trim-both", 1, 3, 0,
- (SCM s, SCM char_pred, SCM start, SCM end),
- "Trim @var{s} by skipping over all characters on both sides of\n"
- "the string that satisfy the parameter @var{char_pred}:\n"
- "\n"
- "@itemize @bullet\n"
- "@item\n"
- "if it is the character @var{ch}, characters equal to @var{ch}\n"
- "are trimmed,\n"
- "\n"
- "@item\n"
- "if it is a procedure @var{pred} characters that satisfy\n"
- "@var{pred} are trimmed,\n"
- "\n"
- "@item\n"
- "if it is a character set, the characters in the set are\n"
- "trimmed.\n"
- "@end itemize\n"
- "\n"
- "If called without a @var{char_pred} argument, all whitespace is\n"
- "trimmed.")
-#define FUNC_NAME s_scm_string_trim_both
-{
- char * cstr;
- int cstart, cend;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s, cstr,
- 3, start, cstart,
- 4, end, cend);
- if (SCM_UNBNDP (char_pred))
- {
- while (cstart < cend)
- {
- if (!isspace((int) (unsigned char) cstr[cstart]))
- break;
- cstart++;
- }
- while (cstart < cend)
- {
- if (!isspace((int) (unsigned char) cstr[cend - 1]))
- break;
- cend--;
- }
- }
- else if (SCM_CHARP (char_pred))
- {
- char chr = SCM_CHAR (char_pred);
- while (cstart < cend)
- {
- if (chr != cstr[cstart])
- break;
- cstart++;
- }
- while (cstart < cend)
- {
- if (chr != cstr[cend - 1])
- break;
- cend--;
- }
- }
- else if (SCM_CHARSETP (char_pred))
- {
- while (cstart < cend)
- {
- if (!SCM_CHARSET_GET (char_pred, cstr[cstart]))
- break;
- cstart++;
- }
- while (cstart < cend)
- {
- if (!SCM_CHARSET_GET (char_pred, cstr[cend - 1]))
- break;
- cend--;
- }
- }
- else
- {
- SCM_VALIDATE_PROC (2, char_pred);
- while (cstart < cend)
- {
- SCM res;
-
- res = scm_call_1 (char_pred, SCM_MAKE_CHAR (cstr[cstart]));
- if (scm_is_false (res))
- break;
- cstart++;
- }
- while (cstart < cend)
- {
- SCM res;
-
- res = scm_call_1 (char_pred, SCM_MAKE_CHAR (cstr[cend - 1]));
- if (scm_is_false (res))
- break;
- cend--;
- }
- }
- return scm_mem2string (cstr + cstart, cend - cstart);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_fill_xS, "string-fill!", 2, 2, 0,
- (SCM str, SCM chr, SCM start, SCM end),
- "Stores @var{chr} in every element of the given @var{str} and\n"
- "returns an unspecified value.")
-#define FUNC_NAME s_scm_string_fill_xS
-{
- char * cstr;
- int cstart, cend;
- int c;
- long k;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, str, cstr,
- 3, start, cstart,
- 4, end, cend);
- SCM_VALIDATE_CHAR_COPY (2, chr, c);
- for (k = cstart; k < cend; k++)
- cstr[k] = c;
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_compare, "string-compare", 5, 4, 0,
- (SCM s1, SCM s2, SCM proc_lt, SCM proc_eq, SCM proc_gt, SCM start1, SCM end1, SCM start2, SCM end2),
- "Apply @var{proc_lt}, @var{proc_eq}, @var{proc_gt} to the\n"
- "mismatch index, depending upon whether @var{s1} is less than,\n"
- "equal to, or greater than @var{s2}. The mismatch index is the\n"
- "largest index @var{i} such that for every 0 <= @var{j} <\n"
- "@var{i}, @var{s1}[@var{j}] = @var{s2}[@var{j}] -- that is,\n"
- "@var{i} is the first position that does not match.")
-#define FUNC_NAME s_scm_string_compare
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 6, start1, cstart1,
- 7, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 8, start2, cstart2,
- 9, end2, cend2);
- SCM_VALIDATE_PROC (3, proc_lt);
- SCM_VALIDATE_PROC (4, proc_eq);
- SCM_VALIDATE_PROC (5, proc_gt);
-
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- if (cstr1[cstart1] < cstr2[cstart2])
- return scm_call_1 (proc_lt, SCM_MAKINUM (cstart1));
- else if (cstr1[cstart1] > cstr2[cstart2])
- return scm_call_1 (proc_gt, SCM_MAKINUM (cstart1));
- cstart1++;
- cstart2++;
- }
- if (cstart1 < cend1)
- return scm_call_1 (proc_gt, SCM_MAKINUM (cstart1));
- else if (cstart2 < cend2)
- return scm_call_1 (proc_lt, SCM_MAKINUM (cstart1));
- else
- return scm_call_1 (proc_eq, SCM_MAKINUM (cstart1));
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_compare_ci, "string-compare-ci", 5, 4, 0,
- (SCM s1, SCM s2, SCM proc_lt, SCM proc_eq, SCM proc_gt, SCM start1, SCM end1, SCM start2, SCM end2),
- "Apply @var{proc_lt}, @var{proc_eq}, @var{proc_gt} to the\n"
- "mismatch index, depending upon whether @var{s1} is less than,\n"
- "equal to, or greater than @var{s2}. The mismatch index is the\n"
- "largest index @var{i} such that for every 0 <= @var{j} <\n"
- "@var{i}, @var{s1}[@var{j}] = @var{s2}[@var{j}] -- that is,\n"
- "@var{i} is the first position that does not match. The\n"
- "character comparison is done case-insensitively.")
-#define FUNC_NAME s_scm_string_compare_ci
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 6, start1, cstart1,
- 7, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 8, start2, cstart2,
- 9, end2, cend2);
- SCM_VALIDATE_PROC (3, proc_lt);
- SCM_VALIDATE_PROC (4, proc_eq);
- SCM_VALIDATE_PROC (5, proc_gt);
-
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- if (scm_c_downcase (cstr1[cstart1]) < scm_c_downcase (cstr2[cstart2]))
- return scm_call_1 (proc_lt, SCM_MAKINUM (cstart1));
- else if (scm_c_downcase (cstr1[cstart1]) > scm_c_downcase (cstr2[cstart2]))
- return scm_call_1 (proc_gt, SCM_MAKINUM (cstart1));
- cstart1++;
- cstart2++;
- }
- if (cstart1 < cend1)
- return scm_call_1 (proc_gt, SCM_MAKINUM (cstart1));
- else if (cstart2 < cend2)
- return scm_call_1 (proc_lt, SCM_MAKINUM (cstart1));
- else
- return scm_call_1 (proc_eq, SCM_MAKINUM (cstart1));
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_eq, "string=", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Return @code{#f} if @var{s1} and @var{s2} are not equal, a true\n"
- "value otherwise.")
-#define FUNC_NAME s_scm_string_eq
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
-
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- if (cstr1[cstart1] < cstr2[cstart2])
- return SCM_BOOL_F;
- else if (cstr1[cstart1] > cstr2[cstart2])
- return SCM_BOOL_F;
- cstart1++;
- cstart2++;
- }
- if (cstart1 < cend1)
- return SCM_BOOL_F;
- else if (cstart2 < cend2)
- return SCM_BOOL_F;
- else
- return SCM_MAKINUM (cstart1);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_neq, "string<>", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Return @code{#f} if @var{s1} and @var{s2} are equal, a true\n"
- "value otherwise.")
-#define FUNC_NAME s_scm_string_neq
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
-
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- if (cstr1[cstart1] < cstr2[cstart2])
- return SCM_MAKINUM (cstart1);
- else if (cstr1[cstart1] > cstr2[cstart2])
- return SCM_MAKINUM (cstart1);
- cstart1++;
- cstart2++;
- }
- if (cstart1 < cend1)
- return SCM_MAKINUM (cstart1);
- else if (cstart2 < cend2)
- return SCM_MAKINUM (cstart1);
- else
- return SCM_BOOL_F;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_lt, "string<", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Return @code{#f} if @var{s1} is greater or equal to @var{s2}, a\n"
- "true value otherwise.")
-#define FUNC_NAME s_scm_string_lt
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
-
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- if (cstr1[cstart1] < cstr2[cstart2])
- return SCM_MAKINUM (cstart1);
- else if (cstr1[cstart1] > cstr2[cstart2])
- return SCM_BOOL_F;
- cstart1++;
- cstart2++;
- }
- if (cstart1 < cend1)
- return SCM_BOOL_F;
- else if (cstart2 < cend2)
- return SCM_MAKINUM (cstart1);
- else
- return SCM_BOOL_F;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_gt, "string>", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Return @code{#f} if @var{s1} is less or equal to @var{s2}, a\n"
- "true value otherwise.")
-#define FUNC_NAME s_scm_string_gt
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
-
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- if (cstr1[cstart1] < cstr2[cstart2])
- return SCM_BOOL_F;
- else if (cstr1[cstart1] > cstr2[cstart2])
- return SCM_MAKINUM (cstart1);
- cstart1++;
- cstart2++;
- }
- if (cstart1 < cend1)
- return SCM_MAKINUM (cstart1);
- else if (cstart2 < cend2)
- return SCM_BOOL_F;
- else
- return SCM_BOOL_F;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_le, "string<=", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Return @code{#f} if @var{s1} is greater to @var{s2}, a true\n"
- "value otherwise.")
-#define FUNC_NAME s_scm_string_le
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
-
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- if (cstr1[cstart1] < cstr2[cstart2])
- return SCM_MAKINUM (cstart1);
- else if (cstr1[cstart1] > cstr2[cstart2])
- return SCM_BOOL_F;
- cstart1++;
- cstart2++;
- }
- if (cstart1 < cend1)
- return SCM_BOOL_F;
- else if (cstart2 < cend2)
- return SCM_MAKINUM (cstart1);
- else
- return SCM_MAKINUM (cstart1);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_ge, "string>=", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Return @code{#f} if @var{s1} is less to @var{s2}, a true value\n"
- "otherwise.")
-#define FUNC_NAME s_scm_string_ge
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
-
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- if (cstr1[cstart1] < cstr2[cstart2])
- return SCM_BOOL_F;
- else if (cstr1[cstart1] > cstr2[cstart2])
- return SCM_MAKINUM (cstart1);
- cstart1++;
- cstart2++;
- }
- if (cstart1 < cend1)
- return SCM_MAKINUM (cstart1);
- else if (cstart2 < cend2)
- return SCM_BOOL_F;
- else
- return SCM_MAKINUM (cstart1);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_ci_eq, "string-ci=", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Return @code{#f} if @var{s1} and @var{s2} are not equal, a true\n"
- "value otherwise. The character comparison is done\n"
- "case-insensitively.")
-#define FUNC_NAME s_scm_string_ci_eq
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
-
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- if (scm_c_downcase (cstr1[cstart1]) < scm_c_downcase (cstr2[cstart2]))
- return SCM_BOOL_F;
- else if (scm_c_downcase (cstr1[cstart1]) > scm_c_downcase (cstr2[cstart2]))
- return SCM_BOOL_F;
- cstart1++;
- cstart2++;
- }
- if (cstart1 < cend1)
- return SCM_BOOL_F;
- else if (cstart2 < cend2)
- return SCM_BOOL_F;
- else
- return SCM_MAKINUM (cstart1);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_ci_neq, "string-ci<>", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Return @code{#f} if @var{s1} and @var{s2} are equal, a true\n"
- "value otherwise. The character comparison is done\n"
- "case-insensitively.")
-#define FUNC_NAME s_scm_string_ci_neq
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
-
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- if (scm_c_downcase (cstr1[cstart1]) < scm_c_downcase (cstr2[cstart2]))
- return SCM_MAKINUM (cstart1);
- else if (scm_c_downcase (cstr1[cstart1]) > scm_c_downcase (cstr2[cstart2]))
- return SCM_MAKINUM (cstart1);
- cstart1++;
- cstart2++;
- }
- if (cstart1 < cend1)
- return SCM_MAKINUM (cstart1);
- else if (cstart2 < cend2)
- return SCM_MAKINUM (cstart1);
- else
- return SCM_BOOL_F;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_ci_lt, "string-ci<", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Return @code{#f} if @var{s1} is greater or equal to @var{s2}, a\n"
- "true value otherwise. The character comparison is done\n"
- "case-insensitively.")
-#define FUNC_NAME s_scm_string_ci_lt
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
-
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- if (scm_c_downcase (cstr1[cstart1]) < scm_c_downcase (cstr2[cstart2]))
- return SCM_MAKINUM (cstart1);
- else if (scm_c_downcase (cstr1[cstart1]) > scm_c_downcase (cstr2[cstart2]))
- return SCM_BOOL_F;
- cstart1++;
- cstart2++;
- }
- if (cstart1 < cend1)
- return SCM_BOOL_F;
- else if (cstart2 < cend2)
- return SCM_MAKINUM (cstart1);
- else
- return SCM_BOOL_F;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_ci_gt, "string-ci>", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Return @code{#f} if @var{s1} is less or equal to @var{s2}, a\n"
- "true value otherwise. The character comparison is done\n"
- "case-insensitively.")
-#define FUNC_NAME s_scm_string_ci_gt
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
-
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- if (scm_c_downcase (cstr1[cstart1]) < scm_c_downcase (cstr2[cstart2]))
- return SCM_BOOL_F;
- else if (scm_c_downcase (cstr1[cstart1]) > scm_c_downcase (cstr2[cstart2]))
- return SCM_MAKINUM (cstart1);
- cstart1++;
- cstart2++;
- }
- if (cstart1 < cend1)
- return SCM_MAKINUM (cstart1);
- else if (cstart2 < cend2)
- return SCM_BOOL_F;
- else
- return SCM_BOOL_F;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_ci_le, "string-ci<=", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Return @code{#f} if @var{s1} is greater to @var{s2}, a true\n"
- "value otherwise. The character comparison is done\n"
- "case-insensitively.")
-#define FUNC_NAME s_scm_string_ci_le
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
-
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- if (scm_c_downcase (cstr1[cstart1]) < scm_c_downcase (cstr2[cstart2]))
- return SCM_MAKINUM (cstart1);
- else if (scm_c_downcase (cstr1[cstart1]) > scm_c_downcase (cstr2[cstart2]))
- return SCM_BOOL_F;
- cstart1++;
- cstart2++;
- }
- if (cstart1 < cend1)
- return SCM_BOOL_F;
- else if (cstart2 < cend2)
- return SCM_MAKINUM (cstart1);
- else
- return SCM_MAKINUM (cstart1);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_ci_ge, "string-ci>=", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Return @code{#f} if @var{s1} is less to @var{s2}, a true value\n"
- "otherwise. The character comparison is done\n"
- "case-insensitively.")
-#define FUNC_NAME s_scm_string_ci_ge
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
-
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- if (scm_c_downcase (cstr1[cstart1]) < scm_c_downcase (cstr2[cstart2]))
- return SCM_BOOL_F;
- else if (scm_c_downcase (cstr1[cstart1]) > scm_c_downcase (cstr2[cstart2]))
- return SCM_MAKINUM (cstart1);
- cstart1++;
- cstart2++;
- }
- if (cstart1 < cend1)
- return SCM_MAKINUM (cstart1);
- else if (cstart2 < cend2)
- return SCM_BOOL_F;
- else
- return SCM_MAKINUM (cstart1);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_prefix_length, "string-prefix-length", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Return the length of the longest common prefix of the two\n"
- "strings.")
-#define FUNC_NAME s_scm_string_prefix_length
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
- int len = 0;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- if (cstr1[cstart1] != cstr2[cstart2])
- return SCM_MAKINUM (len);
- len++;
- cstart1++;
- cstart2++;
- }
- return SCM_MAKINUM (len);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_prefix_length_ci, "string-prefix-length-ci", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Return the length of the longest common prefix of the two\n"
- "strings, ignoring character case.")
-#define FUNC_NAME s_scm_string_prefix_length_ci
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
- int len = 0;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- if (scm_c_downcase (cstr1[cstart1]) != scm_c_downcase (cstr2[cstart2]))
- return SCM_MAKINUM (len);
- len++;
- cstart1++;
- cstart2++;
- }
- return SCM_MAKINUM (len);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_suffix_length, "string-suffix-length", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Return the length of the longest common suffix of the two\n"
- "strings.")
-#define FUNC_NAME s_scm_string_suffix_length
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
- int len = 0;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- cend1--;
- cend2--;
- if (cstr1[cend1] != cstr2[cend2])
- return SCM_MAKINUM (len);
- len++;
- }
- return SCM_MAKINUM (len);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_suffix_length_ci, "string-suffix-length-ci", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Return the length of the longest common suffix of the two\n"
- "strings, ignoring character case.")
-#define FUNC_NAME s_scm_string_suffix_length_ci
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
- int len = 0;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- cend1--;
- cend2--;
- if (scm_c_downcase (cstr1[cend1]) != scm_c_downcase (cstr2[cend2]))
- return SCM_MAKINUM (len);
- len++;
- }
- return SCM_MAKINUM (len);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_prefix_p, "string-prefix?", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Is @var{s1} a prefix of @var{s2}?")
-#define FUNC_NAME s_scm_string_prefix_p
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
- int len = 0, len1;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
- len1 = cend1 - cstart1;
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- if (cstr1[cstart1] != cstr2[cstart2])
- return scm_from_bool (len == len1);
- len++;
- cstart1++;
- cstart2++;
- }
- return scm_from_bool (len == len1);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_prefix_ci_p, "string-prefix-ci?", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Is @var{s1} a prefix of @var{s2}, ignoring character case?")
-#define FUNC_NAME s_scm_string_prefix_ci_p
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
- int len = 0, len1;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
- len1 = cend1 - cstart1;
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- if (scm_c_downcase (cstr1[cstart1]) != scm_c_downcase (cstr2[cstart2]))
- return scm_from_bool (len == len1);
- len++;
- cstart1++;
- cstart2++;
- }
- return scm_from_bool (len == len1);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_suffix_p, "string-suffix?", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Is @var{s1} a suffix of @var{s2}?")
-#define FUNC_NAME s_scm_string_suffix_p
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
- int len = 0, len1;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
- len1 = cend1 - cstart1;
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- cend1--;
- cend2--;
- if (cstr1[cend1] != cstr2[cend2])
- return scm_from_bool (len == len1);
- len++;
- }
- return scm_from_bool (len == len1);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_suffix_ci_p, "string-suffix-ci?", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Is @var{s1} a suffix of @var{s2}, ignoring character case?")
-#define FUNC_NAME s_scm_string_suffix_ci_p
-{
- char * cstr1, * cstr2;
- int cstart1, cend1, cstart2, cend2;
- int len = 0, len1;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
- len1 = cend1 - cstart1;
- while (cstart1 < cend1 && cstart2 < cend2)
- {
- cend1--;
- cend2--;
- if (scm_c_downcase (cstr1[cend1]) != scm_c_downcase (cstr2[cend2]))
- return scm_from_bool (len == len1);
- len++;
- }
- return scm_from_bool (len == len1);
-}
-#undef FUNC_NAME
-
-
-/* FIXME::martin: The `S' is to avoid a name clash with the procedure
- in the core, which does not accept a predicate. */
-SCM_DEFINE (scm_string_indexS, "string-index", 2, 2, 0,
- (SCM s, SCM char_pred, SCM start, SCM end),
- "Search through the string @var{s} from left to right, returning\n"
- "the index of the first occurence of a character which\n"
- "\n"
- "@itemize @bullet\n"
- "@item\n"
- "equals @var{char_pred}, if it is character,\n"
- "\n"
- "@item\n"
- "satisifies the predicate @var{char_pred}, if it is a procedure,\n"
- "\n"
- "@item\n"
- "is in the set @var{char_pred}, if it is a character set.\n"
- "@end itemize")
-#define FUNC_NAME s_scm_string_indexS
-{
- char * cstr;
- int cstart, cend;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s, cstr,
- 3, start, cstart,
- 4, end, cend);
- if (SCM_CHARP (char_pred))
- {
- char cchr = SCM_CHAR (char_pred);
- while (cstart < cend)
- {
- if (cchr == cstr[cstart])
- return SCM_MAKINUM (cstart);
- cstart++;
- }
- }
- else if (SCM_CHARSETP (char_pred))
- {
- while (cstart < cend)
- {
- if (SCM_CHARSET_GET (char_pred, cstr[cstart]))
- return SCM_MAKINUM (cstart);
- cstart++;
- }
- }
- else
- {
- SCM_VALIDATE_PROC (2, char_pred);
- while (cstart < cend)
- {
- SCM res;
- res = scm_call_1 (char_pred, SCM_MAKE_CHAR (cstr[cstart]));
- if (scm_is_true (res))
- return SCM_MAKINUM (cstart);
- cstart++;
- }
- }
- return SCM_BOOL_F;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_index_right, "string-index-right", 2, 2, 0,
- (SCM s, SCM char_pred, SCM start, SCM end),
- "Search through the string @var{s} from right to left, returning\n"
- "the index of the last occurence of a character which\n"
- "\n"
- "@itemize @bullet\n"
- "@item\n"
- "equals @var{char_pred}, if it is character,\n"
- "\n"
- "@item\n"
- "satisifies the predicate @var{char_pred}, if it is a procedure,\n"
- "\n"
- "@item\n"
- "is in the set if @var{char_pred} is a character set.\n"
- "@end itemize")
-#define FUNC_NAME s_scm_string_index_right
-{
- char * cstr;
- int cstart, cend;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s, cstr,
- 3, start, cstart,
- 4, end, cend);
- if (SCM_CHARP (char_pred))
- {
- char cchr = SCM_CHAR (char_pred);
- while (cstart < cend)
- {
- cend--;
- if (cchr == cstr[cend])
- return SCM_MAKINUM (cend);
- }
- }
- else if (SCM_CHARSETP (char_pred))
- {
- while (cstart < cend)
- {
- cend--;
- if (SCM_CHARSET_GET (char_pred, cstr[cend]))
- return SCM_MAKINUM (cend);
- }
- }
- else
- {
- SCM_VALIDATE_PROC (2, char_pred);
- while (cstart < cend)
- {
- SCM res;
- cend--;
- res = scm_call_1 (char_pred, SCM_MAKE_CHAR (cstr[cend]));
- if (scm_is_true (res))
- return SCM_MAKINUM (cend);
- }
- }
- return SCM_BOOL_F;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_skip, "string-skip", 2, 2, 0,
- (SCM s, SCM char_pred, SCM start, SCM end),
- "Search through the string @var{s} from left to right, returning\n"
- "the index of the first occurence of a character which\n"
- "\n"
- "@itemize @bullet\n"
- "@item\n"
- "does not equal @var{char_pred}, if it is character,\n"
- "\n"
- "@item\n"
- "does not satisify the predicate @var{char_pred}, if it is a\n"
- "procedure,\n"
- "\n"
- "@item\n"
- "is not in the set if @var{char_pred} is a character set.\n"
- "@end itemize")
-#define FUNC_NAME s_scm_string_skip
-{
- char * cstr;
- int cstart, cend;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s, cstr,
- 3, start, cstart,
- 4, end, cend);
- if (SCM_CHARP (char_pred))
- {
- char cchr = SCM_CHAR (char_pred);
- while (cstart < cend)
- {
- if (cchr != cstr[cstart])
- return SCM_MAKINUM (cstart);
- cstart++;
- }
- }
- else if (SCM_CHARSETP (char_pred))
- {
- while (cstart < cend)
- {
- if (!SCM_CHARSET_GET (char_pred, cstr[cstart]))
- return SCM_MAKINUM (cstart);
- cstart++;
- }
- }
- else
- {
- SCM_VALIDATE_PROC (2, char_pred);
- while (cstart < cend)
- {
- SCM res;
- res = scm_call_1 (char_pred, SCM_MAKE_CHAR (cstr[cstart]));
- if (scm_is_false (res))
- return SCM_MAKINUM (cstart);
- cstart++;
- }
- }
- return SCM_BOOL_F;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_skip_right, "string-skip-right", 2, 2, 0,
- (SCM s, SCM char_pred, SCM start, SCM end),
- "Search through the string @var{s} from right to left, returning\n"
- "the index of the last occurence of a character which\n"
- "\n"
- "@itemize @bullet\n"
- "@item\n"
- "does not equal @var{char_pred}, if it is character,\n"
- "\n"
- "@item\n"
- "does not satisifie the predicate @var{char_pred}, if it is a\n"
- "procedure,\n"
- "\n"
- "@item\n"
- "is not in the set if @var{char_pred} is a character set.\n"
- "@end itemize")
-#define FUNC_NAME s_scm_string_skip_right
-{
- char * cstr;
- int cstart, cend;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s, cstr,
- 3, start, cstart,
- 4, end, cend);
- if (SCM_CHARP (char_pred))
- {
- char cchr = SCM_CHAR (char_pred);
- while (cstart < cend)
- {
- cend--;
- if (cchr != cstr[cend])
- return SCM_MAKINUM (cend);
- }
- }
- else if (SCM_CHARSETP (char_pred))
- {
- while (cstart < cend)
- {
- cend--;
- if (!SCM_CHARSET_GET (char_pred, cstr[cend]))
- return SCM_MAKINUM (cend);
- }
- }
- else
- {
- SCM_VALIDATE_PROC (2, char_pred);
- while (cstart < cend)
- {
- SCM res;
- cend--;
- res = scm_call_1 (char_pred, SCM_MAKE_CHAR (cstr[cend]));
- if (scm_is_false (res))
- return SCM_MAKINUM (cend);
- }
- }
- return SCM_BOOL_F;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_count, "string-count", 2, 2, 0,
- (SCM s, SCM char_pred, SCM start, SCM end),
- "Return the count of the number of characters in the string\n"
- "@var{s} which\n"
- "\n"
- "@itemize @bullet\n"
- "@item\n"
- "equals @var{char_pred}, if it is character,\n"
- "\n"
- "@item\n"
- "satisifies the predicate @var{char_pred}, if it is a procedure.\n"
- "\n"
- "@item\n"
- "is in the set @var{char_pred}, if it is a character set.\n"
- "@end itemize")
-#define FUNC_NAME s_scm_string_count
-{
- char * cstr;
- int cstart, cend;
- int count = 0;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s, cstr,
- 3, start, cstart,
- 4, end, cend);
- if (SCM_CHARP (char_pred))
- {
- char cchr = SCM_CHAR (char_pred);
- while (cstart < cend)
- {
- if (cchr == cstr[cstart])
- count++;
- cstart++;
- }
- }
- else if (SCM_CHARSETP (char_pred))
- {
- while (cstart < cend)
- {
- if (SCM_CHARSET_GET (char_pred, cstr[cstart]))
- count++;
- cstart++;
- }
- }
- else
- {
- SCM_VALIDATE_PROC (2, char_pred);
- while (cstart < cend)
- {
- SCM res;
- res = scm_call_1 (char_pred, SCM_MAKE_CHAR (cstr[cstart]));
- if (scm_is_true (res))
- count++;
- cstart++;
- }
- }
- return SCM_MAKINUM (count);
-}
-#undef FUNC_NAME
-
-
-/* FIXME::martin: This should definitely get implemented more
- efficiently -- maybe with Knuth-Morris-Pratt, like in the reference
- implementation. */
-SCM_DEFINE (scm_string_contains, "string-contains", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Does string @var{s1} contain string @var{s2}? Return the index\n"
- "in @var{s1} where @var{s2} occurs as a substring, or false.\n"
- "The optional start/end indices restrict the operation to the\n"
- "indicated substrings.")
-#define FUNC_NAME s_scm_string_contains
-{
- char * cs1, * cs2;
- int cstart1, cend1, cstart2, cend2;
- int len2, i, j;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cs1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cs2,
- 5, start2, cstart2,
- 6, end2, cend2);
- len2 = cend2 - cstart2;
- while (cstart1 <= cend1 - len2)
- {
- i = cstart1;
- j = cstart2;
- while (i < cend1 && j < cend2 && cs1[i] == cs2[j])
- {
- i++;
- j++;
- }
- if (j == cend2)
- return SCM_MAKINUM (cstart1);
- cstart1++;
- }
- return SCM_BOOL_F;
-}
-#undef FUNC_NAME
-
-
-/* FIXME::martin: This should definitely get implemented more
- efficiently -- maybe with Knuth-Morris-Pratt, like in the reference
- implementation. */
-SCM_DEFINE (scm_string_contains_ci, "string-contains-ci", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Does string @var{s1} contain string @var{s2}? Return the index\n"
- "in @var{s1} where @var{s2} occurs as a substring, or false.\n"
- "The optional start/end indices restrict the operation to the\n"
- "indicated substrings. Character comparison is done\n"
- "case-insensitively.")
-#define FUNC_NAME s_scm_string_contains_ci
-{
- char * cs1, * cs2;
- int cstart1, cend1, cstart2, cend2;
- int len2, i, j;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cs1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cs2,
- 5, start2, cstart2,
- 6, end2, cend2);
- len2 = cend2 - cstart2;
- while (cstart1 <= cend1 - len2)
- {
- i = cstart1;
- j = cstart2;
- while (i < cend1 && j < cend2 &&
- scm_c_downcase (cs1[i]) == scm_c_downcase (cs2[j]))
- {
- i++;
- j++;
- }
- if (j == cend2)
- return SCM_MAKINUM (cstart1);
- cstart1++;
- }
- return SCM_BOOL_F;
-}
-#undef FUNC_NAME
-
-
-/* Helper function for the string uppercase conversion functions.
- * No argument checking is performed. */
-static SCM
-string_upcase_x (SCM v, int start, int end)
-{
- unsigned long k;
-
- for (k = start; k < end; ++k)
- SCM_STRING_UCHARS (v) [k] = scm_c_upcase (SCM_STRING_UCHARS (v) [k]);
-
- return v;
-}
-
-
-/* FIXME::martin: The `S' is to avoid a name clash with the procedure
- in the core, which does not accept start/end indices */
-SCM_DEFINE (scm_string_upcase_xS, "string-upcase!", 1, 2, 0,
- (SCM str, SCM start, SCM end),
- "Destructively upcase every character in @code{str}.\n"
- "\n"
- "@lisp\n"
- "(string-upcase! y)\n"
- "@result{} \"ARRDEFG\"\n"
- "y\n"
- "@result{} \"ARRDEFG\"\n"
- "@end lisp")
-#define FUNC_NAME s_scm_string_upcase_xS
-{
- char * cstr;
- int cstart, cend;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, str, cstr,
- 2, start, cstart,
- 3, end, cend);
- return string_upcase_x (str, cstart, cend);
-}
-#undef FUNC_NAME
-
-
-/* FIXME::martin: The `S' is to avoid a name clash with the procedure
- in the core, which does not accept start/end indices */
-SCM_DEFINE (scm_string_upcaseS, "string-upcase", 1, 2, 0,
- (SCM str, SCM start, SCM end),
- "Upcase every character in @code{str}.")
-#define FUNC_NAME s_scm_string_upcaseS
-{
- char * cstr;
- int cstart, cend;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, str, cstr,
- 2, start, cstart,
- 3, end, cend);
- return string_upcase_x (scm_string_copy (str), cstart, cend);
-}
-#undef FUNC_NAME
-
-
-/* Helper function for the string lowercase conversion functions.
- * No argument checking is performed. */
-static SCM
-string_downcase_x (SCM v, int start, int end)
-{
- unsigned long k;
-
- for (k = start; k < end; ++k)
- SCM_STRING_UCHARS (v) [k] = scm_c_downcase (SCM_STRING_UCHARS (v) [k]);
-
- return v;
-}
-
-
-/* FIXME::martin: The `S' is to avoid a name clash with the procedure
- in the core, which does not accept start/end indices */
-SCM_DEFINE (scm_string_downcase_xS, "string-downcase!", 1, 2, 0,
- (SCM str, SCM start, SCM end),
- "Destructively downcase every character in @var{str}.\n"
- "\n"
- "@lisp\n"
- "y\n"
- "@result{} \"ARRDEFG\"\n"
- "(string-downcase! y)\n"
- "@result{} \"arrdefg\"\n"
- "y\n"
- "@result{} \"arrdefg\"\n"
- "@end lisp")
-#define FUNC_NAME s_scm_string_downcase_xS
-{
- char * cstr;
- int cstart, cend;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, str, cstr,
- 2, start, cstart,
- 3, end, cend);
- return string_downcase_x (str, cstart, cend);
-}
-#undef FUNC_NAME
-
-
-/* FIXME::martin: The `S' is to avoid a name clash with the procedure
- in the core, which does not accept start/end indices */
-SCM_DEFINE (scm_string_downcaseS, "string-downcase", 1, 2, 0,
- (SCM str, SCM start, SCM end),
- "Downcase every character in @var{str}.")
-#define FUNC_NAME s_scm_string_downcaseS
-{
- char * cstr;
- int cstart, cend;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, str, cstr,
- 2, start, cstart,
- 3, end, cend);
- return string_downcase_x (scm_string_copy (str), cstart, cend);
-}
-#undef FUNC_NAME
-
-
-/* Helper function for the string capitalization functions.
- * No argument checking is performed. */
-static SCM
-string_titlecase_x (SCM str, int start, int end)
-{
- unsigned char * sz;
- int i, in_word = 0;
-
- sz = SCM_STRING_UCHARS (str);
- for(i = start; i < end; i++)
- {
- if (scm_is_true (scm_char_alphabetic_p (SCM_MAKE_CHAR (sz[i]))))
- {
- if (!in_word)
- {
- sz[i] = scm_c_upcase(sz[i]);
- in_word = 1;
- }
- else
- {
- sz[i] = scm_c_downcase(sz[i]);
- }
- }
- else
- in_word = 0;
- }
- return str;
-}
-
-
-SCM_DEFINE (scm_string_titlecase_x, "string-titlecase!", 1, 2, 0,
- (SCM str, SCM start, SCM end),
- "Destructively titlecase every first character in a word in\n"
- "@var{str}.")
-#define FUNC_NAME s_scm_string_titlecase_x
-{
- char * cstr;
- int cstart, cend;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, str, cstr,
- 2, start, cstart,
- 3, end, cend);
- return string_titlecase_x (str, cstart, cend);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_titlecase, "string-titlecase", 1, 2, 0,
- (SCM str, SCM start, SCM end),
- "Titlecase every first character in a word in @var{str}.")
-#define FUNC_NAME s_scm_string_titlecase
-{
- char * cstr;
- int cstart, cend;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, str, cstr,
- 2, start, cstart,
- 3, end, cend);
- return string_titlecase_x (scm_string_copy (str), cstart, cend);
-}
-#undef FUNC_NAME
-
-
-/* Reverse the portion of @var{str} between str[cstart] (including)
- and str[cend] excluding. */
-static void
-string_reverse_x (char * str, int cstart, int cend)
-{
- char tmp;
-
- cend--;
- while (cstart < cend)
- {
- tmp = str[cstart];
- str[cstart] = str[cend];
- str[cend] = tmp;
- cstart++;
- cend--;
- }
-}
-
-
-SCM_DEFINE (scm_string_reverse, "string-reverse", 1, 2, 0,
- (SCM str, SCM start, SCM end),
- "Reverse the string @var{str}. The optional arguments\n"
- "@var{start} and @var{end} delimit the region of @var{str} to\n"
- "operate on.")
-#define FUNC_NAME s_scm_string_reverse
-{
- char * cstr;
- int cstart;
- int cend;
- SCM result;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, str, cstr,
- 2, start, cstart,
- 3, end, cend);
- result = scm_string_copy (str);
- string_reverse_x (SCM_STRING_CHARS (result), cstart, cend);
- return result;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_reverse_x, "string-reverse!", 1, 2, 0,
- (SCM str, SCM start, SCM end),
- "Reverse the string @var{str} in-place. The optional arguments\n"
- "@var{start} and @var{end} delimit the region of @var{str} to\n"
- "operate on. The return value is unspecified.")
-#define FUNC_NAME s_scm_string_reverse_x
-{
- char * cstr;
- int cstart;
- int cend;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, str, cstr,
- 2, start, cstart,
- 3, end, cend);
- string_reverse_x (SCM_STRING_CHARS (str), cstart, cend);
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_append_shared, "string-append/shared", 0, 0, 1,
- (SCM ls),
- "Like @code{string-append}, but the result may share memory\n"
- "with the argument strings.")
-#define FUNC_NAME s_scm_string_append_shared
-{
- long i;
-
- SCM_VALIDATE_REST_ARGUMENT (ls);
-
- /* Optimize the one-argument case. */
- i = scm_ilength (ls);
- if (i == 1)
- return SCM_CAR (ls);
- else
- return scm_string_append (ls);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_concatenate, "string-concatenate", 1, 0, 0,
- (SCM ls),
- "Append the elements of @var{ls} (which must be strings)\n"
- "together into a single string. Guaranteed to return a freshly\n"
- "allocated string.")
-#define FUNC_NAME s_scm_string_concatenate
-{
- long strings = scm_ilength (ls);
- SCM tmp, result;
- int len = 0;
- char * p;
-
- /* Validate the string list. */
- if (strings < 0)
- SCM_WRONG_TYPE_ARG (1, ls);
-
- /* Calculate the size of the result string. */
- tmp = ls;
- while (!SCM_NULLP (tmp))
- {
- SCM elt = SCM_CAR (tmp);
- SCM_VALIDATE_STRING (1, elt);
- len += SCM_STRING_LENGTH (elt);
- tmp = SCM_CDR (tmp);
- }
- result = scm_allocate_string (len);
-
- /* Copy the list elements into the result. */
- p = SCM_STRING_CHARS (result);
- tmp = ls;
- while (!SCM_NULLP (tmp))
- {
- SCM elt = SCM_CAR (tmp);
- memmove (p, SCM_STRING_CHARS (elt),
- SCM_STRING_LENGTH (elt) * sizeof (char));
- p += SCM_STRING_LENGTH (elt);
- tmp = SCM_CDR (tmp);
- }
- return result;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_concatenate_reverse, "string-concatenate-reverse", 1, 2, 0,
- (SCM ls, SCM final_string, SCM end),
- "Without optional arguments, this procedure is equivalent to\n"
- "\n"
- "@smalllisp\n"
- "(string-concatenate (reverse ls))\n"
- "@end smalllisp\n"
- "\n"
- "If the optional argument @var{final_string} is specified, it is\n"
- "consed onto the beginning to @var{ls} before performing the\n"
- "list-reverse and string-concatenate operations. If @var{end}\n"
- "is given, only the characters of @var{final_string} up to index\n"
- "@var{end} are used.\n"
- "\n"
- "Guaranteed to return a freshly allocated string.")
-#define FUNC_NAME s_scm_string_concatenate_reverse
-{
- long strings;
- SCM tmp, result;
- int len = 0;
- char * p;
- int cend = 0;
-
- /* Check the optional arguments and calculate the additional length
- of the result string. */
- if (!SCM_UNBNDP (final_string))
- {
- SCM_VALIDATE_STRING (2, final_string);
- if (!SCM_UNBNDP (end))
- {
- SCM_VALIDATE_INUM_COPY (3, end, cend);
- SCM_ASSERT_RANGE (3, end,
- (cend >= 0) &&
- (cend <= SCM_STRING_LENGTH (final_string)));
- }
- else
- {
- cend = SCM_STRING_LENGTH (final_string);
- }
- len += cend;
- }
- strings = scm_ilength (ls);
- /* Validate the string list. */
- if (strings < 0)
- SCM_WRONG_TYPE_ARG (1, ls);
-
- /* Calculate the length of the result string. */
- tmp = ls;
- while (!SCM_NULLP (tmp))
- {
- SCM elt = SCM_CAR (tmp);
- SCM_VALIDATE_STRING (1, elt);
- len += SCM_STRING_LENGTH (elt);
- tmp = SCM_CDR (tmp);
- }
-
- result = scm_allocate_string (len);
-
- p = SCM_STRING_CHARS (result) + len;
-
- /* Construct the result string, possibly by using the optional final
- string. */
- if (!SCM_UNBNDP (final_string))
- {
- p -= cend;
- memmove (p, SCM_STRING_CHARS (final_string), cend * sizeof (char));
- }
- tmp = ls;
- while (!SCM_NULLP (tmp))
- {
- SCM elt = SCM_CAR (tmp);
- p -= SCM_STRING_LENGTH (elt);
- memmove (p, SCM_STRING_CHARS (elt),
- SCM_STRING_LENGTH (elt) * sizeof (char));
- tmp = SCM_CDR (tmp);
- }
- return result;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_concatenate_shared, "string-concatenate/shared", 1, 0, 0,
- (SCM ls),
- "Like @code{string-concatenate}, but the result may share memory\n"
- "with the strings in the list @var{ls}.")
-#define FUNC_NAME s_scm_string_concatenate_shared
-{
- /* Optimize the one-string case. */
- long i = scm_ilength (ls);
- if (i == 1)
- {
- SCM_VALIDATE_STRING (1, SCM_CAR (ls));
- return SCM_CAR (ls);
- }
- return scm_string_concatenate (ls);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_concatenate_reverse_shared, "string-concatenate-reverse/shared", 1, 2, 0,
- (SCM ls, SCM final_string, SCM end),
- "Like @code{string-concatenate-reverse}, but the result may\n"
- "share memory with the the strings in the @var{ls} arguments.")
-#define FUNC_NAME s_scm_string_concatenate_reverse_shared
-{
- /* Just call the non-sharing version. */
- return scm_string_concatenate_reverse (ls, final_string, end);
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_map, "string-map", 2, 2, 0,
- (SCM proc, SCM s, SCM start, SCM end),
- "@var{proc} is a char->char procedure, it is mapped over\n"
- "@var{s}. The order in which the procedure is applied to the\n"
- "string elements is not specified.")
-#define FUNC_NAME s_scm_string_map
-{
- char * cstr, *p;
- int cstart, cend;
- SCM result;
-
- SCM_VALIDATE_PROC (1, proc);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s, cstr,
- 3, start, cstart,
- 4, end, cend);
- result = scm_allocate_string (cend - cstart);
- p = SCM_STRING_CHARS (result);
- while (cstart < cend)
- {
- unsigned int c = (unsigned char) cstr[cstart];
- SCM ch = scm_call_1 (proc, SCM_MAKE_CHAR (c));
- if (!SCM_CHARP (ch))
- SCM_MISC_ERROR ("procedure ~S returned non-char", scm_list_1 (proc));
- cstart++;
- *p++ = SCM_CHAR (ch);
- }
- return result;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_map_x, "string-map!", 2, 2, 0,
- (SCM proc, SCM s, SCM start, SCM end),
- "@var{proc} is a char->char procedure, it is mapped over\n"
- "@var{s}. The order in which the procedure is applied to the\n"
- "string elements is not specified. The string @var{s} is\n"
- "modified in-place, the return value is not specified.")
-#define FUNC_NAME s_scm_string_map_x
-{
- char * cstr, *p;
- int cstart, cend;
-
- SCM_VALIDATE_PROC (1, proc);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s, cstr,
- 3, start, cstart,
- 4, end, cend);
- p = SCM_STRING_CHARS (s) + cstart;
- while (cstart < cend)
- {
- unsigned int c = (unsigned char) cstr[cstart];
- SCM ch = scm_call_1 (proc, SCM_MAKE_CHAR (c));
- if (!SCM_CHARP (ch))
- SCM_MISC_ERROR ("procedure ~S returned non-char", scm_list_1 (proc));
- cstart++;
- *p++ = SCM_CHAR (ch);
- }
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_fold, "string-fold", 3, 2, 0,
- (SCM kons, SCM knil, SCM s, SCM start, SCM end),
- "Fold @var{kons} over the characters of @var{s}, with @var{knil}\n"
- "as the terminating element, from left to right. @var{kons}\n"
- "must expect two arguments: The actual character and the last\n"
- "result of @var{kons}' application.")
-#define FUNC_NAME s_scm_string_fold
-{
- char * cstr;
- int cstart, cend;
- SCM result;
-
- SCM_VALIDATE_PROC (1, kons);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (3, s, cstr,
- 4, start, cstart,
- 5, end, cend);
- result = knil;
- while (cstart < cend)
- {
- unsigned int c = (unsigned char) cstr[cstart];
- result = scm_call_2 (kons, SCM_MAKE_CHAR (c), result);
- cstart++;
- }
- return result;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_fold_right, "string-fold-right", 3, 2, 0,
- (SCM kons, SCM knil, SCM s, SCM start, SCM end),
- "Fold @var{kons} over the characters of @var{s}, with @var{knil}\n"
- "as the terminating element, from right to left. @var{kons}\n"
- "must expect two arguments: The actual character and the last\n"
- "result of @var{kons}' application.")
-#define FUNC_NAME s_scm_string_fold_right
-{
- char * cstr;
- int cstart, cend;
- SCM result;
-
- SCM_VALIDATE_PROC (1, kons);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (3, s, cstr,
- 4, start, cstart,
- 5, end, cend);
- result = knil;
- while (cstart < cend)
- {
- unsigned int c = (unsigned char) cstr[cend - 1];
- result = scm_call_2 (kons, SCM_MAKE_CHAR (c), result);
- cend--;
- }
- return result;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_unfold, "string-unfold", 4, 2, 0,
- (SCM p, SCM f, SCM g, SCM seed, SCM base, SCM make_final),
- "@itemize @bullet\n"
- "@item @var{g} is used to generate a series of @emph{seed}\n"
- "values from the initial @var{seed}: @var{seed}, (@var{g}\n"
- "@var{seed}), (@var{g}^2 @var{seed}), (@var{g}^3 @var{seed}),\n"
- "@dots{}\n"
- "@item @var{p} tells us when to stop -- when it returns true\n"
- "when applied to one of these seed values.\n"
- "@item @var{f} maps each seed value to the corresponding\n"
- "character in the result string. These chars are assembled\n"
- "into the string in a left-to-right order.\n"
- "@item @var{base} is the optional initial/leftmost portion\n"
- "of the constructed string; it default to the empty\n"
- "string.\n"
- "@item @var{make_final} is applied to the terminal seed\n"
- "value (on which @var{p} returns true) to produce\n"
- "the final/rightmost portion of the constructed string.\n"
- "It defaults to @code{(lambda (x) "")}.\n"
- "@end itemize")
-#define FUNC_NAME s_scm_string_unfold
-{
- SCM res, ans;
-
- SCM_VALIDATE_PROC (1, p);
- SCM_VALIDATE_PROC (2, f);
- SCM_VALIDATE_PROC (3, g);
- if (!SCM_UNBNDP (base))
- {
- SCM_VALIDATE_STRING (5, base);
- ans = base;
- }
- else
- ans = scm_allocate_string (0);
- if (!SCM_UNBNDP (make_final))
- SCM_VALIDATE_PROC (6, make_final);
-
- res = scm_call_1 (p, seed);
- while (scm_is_false (res))
- {
- SCM str;
- SCM ch = scm_call_1 (f, seed);
- if (!SCM_CHARP (ch))
- SCM_MISC_ERROR ("procedure ~S returned non-char", scm_list_1 (f));
- str = scm_allocate_string (1);
- *SCM_STRING_CHARS (str) = SCM_CHAR (ch);
-
- ans = scm_string_append (scm_list_2 (ans, str));
- seed = scm_call_1 (g, seed);
- res = scm_call_1 (p, seed);
- }
- if (!SCM_UNBNDP (make_final))
- {
- res = scm_call_1 (make_final, seed);
- return scm_string_append (scm_list_2 (ans, res));
- }
- else
- return ans;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_unfold_right, "string-unfold-right", 4, 2, 0,
- (SCM p, SCM f, SCM g, SCM seed, SCM base, SCM make_final),
- "@itemize @bullet\n"
- "@item @var{g} is used to generate a series of @emph{seed}\n"
- "values from the initial @var{seed}: @var{seed}, (@var{g}\n"
- "@var{seed}), (@var{g}^2 @var{seed}), (@var{g}^3 @var{seed}),\n"
- "@dots{}\n"
- "@item @var{p} tells us when to stop -- when it returns true\n"
- "when applied to one of these seed values.\n"
- "@item @var{f} maps each seed value to the corresponding\n"
- "character in the result string. These chars are assembled\n"
- "into the string in a right-to-left order.\n"
- "@item @var{base} is the optional initial/rightmost portion\n"
- "of the constructed string; it default to the empty\n"
- "string.\n"
- "@item @var{make_final} is applied to the terminal seed\n"
- "value (on which @var{p} returns true) to produce\n"
- "the final/leftmost portion of the constructed string.\n"
- "It defaults to @code{(lambda (x) "")}.\n"
- "@end itemize")
-#define FUNC_NAME s_scm_string_unfold_right
-{
- SCM res, ans;
-
- SCM_VALIDATE_PROC (1, p);
- SCM_VALIDATE_PROC (2, f);
- SCM_VALIDATE_PROC (3, g);
- if (!SCM_UNBNDP (base))
- {
- SCM_VALIDATE_STRING (5, base);
- ans = base;
- }
- else
- ans = scm_allocate_string (0);
- if (!SCM_UNBNDP (make_final))
- SCM_VALIDATE_PROC (6, make_final);
-
- res = scm_call_1 (p, seed);
- while (scm_is_false (res))
- {
- SCM str;
- SCM ch = scm_call_1 (f, seed);
- if (!SCM_CHARP (ch))
- SCM_MISC_ERROR ("procedure ~S returned non-char", scm_list_1 (f));
- str = scm_allocate_string (1);
- *SCM_STRING_CHARS (str) = SCM_CHAR (ch);
-
- ans = scm_string_append (scm_list_2 (str, ans));
- seed = scm_call_1 (g, seed);
- res = scm_call_1 (p, seed);
- }
- if (!SCM_UNBNDP (make_final))
- {
- res = scm_call_1 (make_final, seed);
- return scm_string_append (scm_list_2 (res, ans));
- }
- else
- return ans;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_for_each, "string-for-each", 2, 2, 0,
- (SCM proc, SCM s, SCM start, SCM end),
- "@var{proc} is mapped over @var{s} in left-to-right order. The\n"
- "return value is not specified.")
-#define FUNC_NAME s_scm_string_for_each
-{
- char * cstr;
- int cstart, cend;
-
- SCM_VALIDATE_PROC (1, proc);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s, cstr,
- 3, start, cstart,
- 4, end, cend);
- while (cstart < cend)
- {
- unsigned int c = (unsigned char) cstr[cstart];
- scm_call_1 (proc, SCM_MAKE_CHAR (c));
- cstart++;
- }
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-SCM_DEFINE (scm_string_for_each_index, "string-for-each-index", 2, 2, 0,
- (SCM proc, SCM s, SCM start, SCM end),
- "@var{proc} is mapped over @var{s} in left-to-right order. The\n"
- "return value is not specified.")
-#define FUNC_NAME s_scm_string_for_each
-{
- char * cstr;
- int cstart, cend;
-
- SCM_VALIDATE_PROC (1, proc);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s, cstr,
- 3, start, cstart,
- 4, end, cend);
- while (cstart < cend)
- {
- scm_call_1 (proc, SCM_MAKINUM (cstart));
- cstart++;
- }
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-SCM_DEFINE (scm_xsubstring, "xsubstring", 2, 3, 0,
- (SCM s, SCM from, SCM to, SCM start, SCM end),
- "This is the @emph{extended substring} procedure that implements\n"
- "replicated copying of a substring of some string.\n"
- "\n"
- "@var{s} is a string, @var{start} and @var{end} are optional\n"
- "arguments that demarcate a substring of @var{s}, defaulting to\n"
- "0 and the length of @var{s}. Replicate this substring up and\n"
- "down index space, in both the positive and negative directions.\n"
- "@code{xsubstring} returns the substring of this string\n"
- "beginning at index @var{from}, and ending at @var{to}, which\n"
- "defaults to @var{from} + (@var{end} - @var{start}).")
-#define FUNC_NAME s_scm_xsubstring
-{
- char * cs, * p;
- int cstart, cend, cfrom, cto;
- SCM result;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s, cs,
- 4, start, cstart,
- 5, end, cend);
- SCM_VALIDATE_INUM_COPY (2, from, cfrom);
- SCM_VALIDATE_INUM_DEF_COPY (3, to, cfrom + (cend - cstart), cto);
- if (cstart == cend && cfrom != cto)
- SCM_MISC_ERROR ("start and end indices must not be equal", SCM_EOL);
-
- result = scm_allocate_string (cto - cfrom);
-
- p = SCM_STRING_CHARS (result);
- while (cfrom < cto)
- {
- int t = ((cfrom < 0) ? -cfrom : cfrom) % (cend - cstart);
- if (cfrom < 0)
- *p = cs[(cend - cstart) - t];
- else
- *p = cs[t];
- cfrom++;
- p++;
- }
- return result;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_xcopy_x, "string-xcopy!", 4, 3, 0,
- (SCM target, SCM tstart, SCM s, SCM sfrom, SCM sto, SCM start, SCM end),
- "Exactly the same as @code{xsubstring}, but the extracted text\n"
- "is written into the string @var{target} starting at index\n"
- "@var{tstart}. The operation is not defined if @code{(eq?\n"
- "@var{target} @var{s})} or these arguments share storage -- you\n"
- "cannot copy a string on top of itself.")
-#define FUNC_NAME s_scm_string_xcopy_x
-{
- char * ctarget, * cs, * p;
- int ctstart, csfrom, csto, cstart, cend;
- SCM dummy = SCM_UNDEFINED;
- int cdummy;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, target, ctarget,
- 2, tstart, ctstart,
- 2, dummy, cdummy);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (3, s, cs,
- 6, start, cstart,
- 7, end, cend);
- SCM_VALIDATE_INUM_COPY (4, sfrom, csfrom);
- SCM_VALIDATE_INUM_DEF_COPY (5, sto, csfrom + (cend - cstart), csto);
- if (cstart == cend && csfrom != csto)
- SCM_MISC_ERROR ("start and end indices must not be equal", SCM_EOL);
- SCM_ASSERT_RANGE (1, tstart,
- ctstart + (csto - csfrom) <= SCM_STRING_LENGTH (target));
-
- p = ctarget + ctstart;
- while (csfrom < csto)
- {
- int t = ((csfrom < 0) ? -csfrom : csfrom) % (cend - cstart);
- if (csfrom < 0)
- *p = cs[(cend - cstart) - t];
- else
- *p = cs[t];
- csfrom++;
- p++;
- }
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_replace, "string-replace", 2, 4, 0,
- (SCM s1, SCM s2, SCM start1, SCM end1, SCM start2, SCM end2),
- "Return the string @var{s1}, but with the characters\n"
- "@var{start1} @dots{} @var{end1} replaced by the characters\n"
- "@var{start2} @dots{} @var{end2} from @var{s2}.")
-#define FUNC_NAME s_scm_string_replace
-{
- char * cstr1, * cstr2, * p;
- int cstart1, cend1, cstart2, cend2;
- SCM result;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s1, cstr1,
- 3, start1, cstart1,
- 4, end1, cend1);
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (2, s2, cstr2,
- 5, start2, cstart2,
- 6, end2, cend2);
- result = scm_allocate_string (cstart1 + (cend2 - cstart2) +
- SCM_STRING_LENGTH (s1) - cend1);
- p = SCM_STRING_CHARS (result);
- memmove (p, cstr1, cstart1 * sizeof (char));
- memmove (p + cstart1, cstr2 + cstart2, (cend2 - cstart2) * sizeof (char));
- memmove (p + cstart1 + (cend2 - cstart2),
- cstr1 + cend1,
- (SCM_STRING_LENGTH (s1) - cend1) * sizeof (char));
- return result;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_tokenize, "string-tokenize", 1, 3, 0,
- (SCM s, SCM token_set, SCM start, SCM end),
- "Split the string @var{s} into a list of substrings, where each\n"
- "substring is a maximal non-empty contiguous sequence of\n"
- "characters from the character set @var{token_set}, which\n"
- "defaults to @code{char-set:graphic} from module (srfi srfi-14).\n"
- "If @var{start} or @var{end} indices are provided, they restrict\n"
- "@code{string-tokenize} to operating on the indicated substring\n"
- "of @var{s}.")
-#define FUNC_NAME s_scm_string_tokenize
-{
- char * cstr;
- int cstart, cend;
- SCM result = SCM_EOL;
-
- static SCM charset_graphic = SCM_BOOL_F;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s, cstr,
- 3, start, cstart,
- 4, end, cend);
-
- if (SCM_UNBNDP (token_set))
- {
- if (charset_graphic == SCM_BOOL_F)
- {
- SCM srfi_14_module = scm_c_resolve_module ("srfi srfi-14");
- SCM charset_graphic_var = scm_c_module_lookup (srfi_14_module,
- "char-set:graphic");
- charset_graphic =
- scm_permanent_object (SCM_VARIABLE_REF (charset_graphic_var));
- }
- token_set = charset_graphic;
- }
-
- if (SCM_CHARSETP (token_set))
- {
- int idx;
-
- while (cstart < cend)
- {
- while (cstart < cend)
- {
- if (SCM_CHARSET_GET (token_set, cstr[cend - 1]))
- break;
- cend--;
- }
- if (cstart >= cend)
- break;
- idx = cend;
- while (cstart < cend)
- {
- if (!SCM_CHARSET_GET (token_set, cstr[cend - 1]))
- break;
- cend--;
- }
- result = scm_cons (scm_mem2string (cstr + cend, idx - cend), result);
- }
- }
- else SCM_WRONG_TYPE_ARG (2, token_set);
- return result;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_filter, "string-filter", 2, 2, 0,
- (SCM s, SCM char_pred, SCM start, SCM end),
- "Filter the string @var{s}, retaining only those characters that\n"
- "satisfy the @var{char_pred} argument. If the argument is a\n"
- "procedure, it is applied to each character as a predicate, if\n"
- "it is a character, it is tested for equality and if it is a\n"
- "character set, it is tested for membership.")
-#define FUNC_NAME s_scm_string_filter
-{
- char * cstr;
- int cstart, cend;
- SCM result;
- int idx;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s, cstr,
- 3, start, cstart,
- 4, end, cend);
- if (SCM_CHARP (char_pred))
- {
- SCM ls = SCM_EOL;
- char chr;
-
- chr = SCM_CHAR (char_pred);
- idx = cstart;
- while (idx < cend)
- {
- if (cstr[idx] == chr)
- ls = scm_cons (SCM_MAKE_CHAR (cstr[idx]), ls);
- idx++;
- }
- result = scm_reverse_list_to_string (ls);
- }
- else if (SCM_CHARSETP (char_pred))
- {
- SCM ls = SCM_EOL;
-
- idx = cstart;
- while (idx < cend)
- {
- if (SCM_CHARSET_GET (char_pred, cstr[idx]))
- ls = scm_cons (SCM_MAKE_CHAR (cstr[idx]), ls);
- idx++;
- }
- result = scm_reverse_list_to_string (ls);
- }
- else
- {
- SCM ls = SCM_EOL;
-
- SCM_VALIDATE_PROC (2, char_pred);
- idx = cstart;
- while (idx < cend)
- {
- SCM res;
- res = scm_call_1 (char_pred, SCM_MAKE_CHAR (cstr[idx]));
- if (scm_is_true (res))
- ls = scm_cons (SCM_MAKE_CHAR (cstr[idx]), ls);
- idx++;
- }
- result = scm_reverse_list_to_string (ls);
- }
- return result;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_string_delete, "string-delete", 2, 2, 0,
- (SCM s, SCM char_pred, SCM start, SCM end),
- "Filter the string @var{s}, retaining only those characters that\n"
- "do not satisfy the @var{char_pred} argument. If the argument\n"
- "is a procedure, it is applied to each character as a predicate,\n"
- "if it is a character, it is tested for equality and if it is a\n"
- "character set, it is tested for membership.")
-#define FUNC_NAME s_scm_string_delete
-{
- char * cstr;
- int cstart, cend;
- SCM result;
- int idx;
-
- SCM_VALIDATE_SUBSTRING_SPEC_COPY (1, s, cstr,
- 3, start, cstart,
- 4, end, cend);
- if (SCM_CHARP (char_pred))
- {
- SCM ls = SCM_EOL;
- char chr;
-
- chr = SCM_CHAR (char_pred);
- idx = cstart;
- while (idx < cend)
- {
- if (cstr[idx] != chr)
- ls = scm_cons (SCM_MAKE_CHAR (cstr[idx]), ls);
- idx++;
- }
- result = scm_reverse_list_to_string (ls);
- }
- else if (SCM_CHARSETP (char_pred))
- {
- SCM ls = SCM_EOL;
-
- idx = cstart;
- while (idx < cend)
- {
- if (!SCM_CHARSET_GET (char_pred, cstr[idx]))
- ls = scm_cons (SCM_MAKE_CHAR (cstr[idx]), ls);
- idx++;
- }
- result = scm_reverse_list_to_string (ls);
- }
- else
- {
- SCM ls = SCM_EOL;
-
- SCM_VALIDATE_PROC (2, char_pred);
- idx = cstart;
- while (idx < cend)
- {
- SCM res;
- res = scm_call_1 (char_pred, SCM_MAKE_CHAR (cstr[idx]));
- if (scm_is_false (res))
- ls = scm_cons (SCM_MAKE_CHAR (cstr[idx]), ls);
- idx++;
- }
- result = scm_reverse_list_to_string (ls);
- }
- return result;
-}
-#undef FUNC_NAME
-
-
-/* Initialize the SRFI-13 module. This function will be called by the
- loading Scheme module. */
-void
-scm_init_srfi_13 (void)
-{
- /* We initialize the SRFI-14 module here, because the string
- primitives need the charset smob type created by that module. */
- scm_c_init_srfi_14 ();
-
- /* Install the string primitives. */
-#include "srfi/srfi-13.x"
-}
-
-/* End of srfi-13.c. */
+/* srfi-13.c --- old place of SRFI-13 procedures for Guile
+ *
+ * Copyright (C) 2001, 2004, 2006 Free Software Foundation, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+
+/* This file is now empty since all its procedures are now in the
+ core. We keep the libguile-srfi-srfi-13.so library around anyway
+ since people might still be linking with it.
+*/
+
+#include "srfi/srfi-13.h"
+
+void
+scm_init_srfi_13 (void)
+{
+}
+
+void
+scm_init_srfi_13_14 (void)
+{
+}
HCoop / bpt / guile.git / blobdiff