diff options
Diffstat (limited to 'srfi/srfi-13.c')
-rw-r--r-- | srfi/srfi-13.c | 3009 |
1 files changed, 0 insertions, 3009 deletions
diff --git a/srfi/srfi-13.c b/srfi/srfi-13.c deleted file mode 100644 index 8b9f4933c..000000000 --- a/srfi/srfi-13.c +++ /dev/null @@ -1,3009 +0,0 @@ -/* srfi-13.c --- SRFI-13 procedures for Guile - * - * Copyright (C) 2001 Free Software Foundation, Inc. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2, or (at - * your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this software; see the file COPYING. If not, write to - * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, - * Boston, MA 02111-1307 USA - * - * As a special exception, the Free Software Foundation gives - * permission for additional uses of the text contained in its release - * of GUILE. - * - * The exception is that, if you link the GUILE library with other - * files to produce an executable, this does not by itself cause the - * resulting executable to be covered by the GNU General Public - * License. Your use of that executable is in no way restricted on - * account of linking the GUILE library code into it. - * - * This exception does not however invalidate any other reasons why - * the executable file might be covered by the GNU General Public - * License. - * - * This exception applies only to the code released by the Free - * Software Foundation under the name GUILE. If you copy code from - * other Free Software Foundation releases into a copy of GUILE, as - * the General Public License permits, the exception does not apply to - * the code that you add in this way. To avoid misleading anyone as - * to the status of such modified files, you must delete this - * exception notice from them. - * - * If you write modifications of your own for GUILE, it is your choice - * whether to permit this exception to apply to your modifications. - * If you do not wish that, delete this exception notice. */ - - -#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_FALSEP (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_FALSEP (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(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_FALSEP (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(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_FALSEP (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(cstr[cstart])) - break; - cstart++; - } - while (cstart < cend) - { - if (!isspace(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_FALSEP (res)) - break; - cstart++; - } - while (cstart < cend) - { - SCM res; - - res = scm_call_1 (char_pred, SCM_MAKE_CHAR (cstr[cend - 1])); - if (SCM_FALSEP (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_downcase (cstr1[cstart1]) < scm_downcase (cstr2[cstart2])) - return scm_call_1 (proc_lt, SCM_MAKINUM (cstart1)); - else if (scm_downcase (cstr1[cstart1]) > scm_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_downcase (cstr1[cstart1]) < scm_downcase (cstr2[cstart2])) - return SCM_BOOL_F; - else if (scm_downcase (cstr1[cstart1]) > scm_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_downcase (cstr1[cstart1]) < scm_downcase (cstr2[cstart2])) - return SCM_MAKINUM (cstart1); - else if (scm_downcase (cstr1[cstart1]) > scm_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_downcase (cstr1[cstart1]) < scm_downcase (cstr2[cstart2])) - return SCM_MAKINUM (cstart1); - else if (scm_downcase (cstr1[cstart1]) > scm_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_downcase (cstr1[cstart1]) < scm_downcase (cstr2[cstart2])) - return SCM_BOOL_F; - else if (scm_downcase (cstr1[cstart1]) > scm_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_downcase (cstr1[cstart1]) < scm_downcase (cstr2[cstart2])) - return SCM_MAKINUM (cstart1); - else if (scm_downcase (cstr1[cstart1]) > scm_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_downcase (cstr1[cstart1]) < scm_downcase (cstr2[cstart2])) - return SCM_BOOL_F; - else if (scm_downcase (cstr1[cstart1]) > scm_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_downcase (cstr1[cstart1]) != scm_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_downcase (cstr1[cend1]) != scm_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_BOOL (len == len1); - len++; - cstart1++; - cstart2++; - } - return SCM_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_downcase (cstr1[cstart1]) != scm_downcase (cstr2[cstart2])) - return SCM_BOOL (len == len1); - len++; - cstart1++; - cstart2++; - } - return SCM_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_BOOL (len == len1); - len++; - } - return SCM_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_downcase (cstr1[cend1]) != scm_downcase (cstr2[cend2])) - return SCM_BOOL (len == len1); - len++; - } - return SCM_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_FALSEP (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_FALSEP (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_FALSEP (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_FALSEP (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_FALSEP (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_downcase (cs1[i]) == scm_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_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_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_FALSEP (scm_char_alphabetic_p (SCM_MAKE_CHAR (sz[i])))) - { - if (!in_word) - { - sz[i] = scm_upcase(sz[i]); - in_word = 1; - } - else - { - sz[i] = scm_downcase(sz[i]); - } - } - else - in_word = 0; - } - return str; -} - - -SCM_DEFINE (scm_string_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) - { - SCM ch = scm_call_1 (proc, SCM_MAKE_CHAR (cstr[cstart])); - 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) - { - SCM ch = scm_call_1 (proc, SCM_MAKE_CHAR (cstr[cstart])); - 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) - { - result = scm_call_2 (kons, SCM_MAKE_CHAR (cstr[cstart]), 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) - { - result = scm_call_2 (kons, SCM_MAKE_CHAR (cstr[cend - 1]), 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_FALSEP (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_FALSEP (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) - { - scm_call_1 (proc, SCM_MAKE_CHAR (cstr[cstart])); - 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_FALSEP (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_FALSEP (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. */ |