diff options
Diffstat (limited to 'doc/oldfmt.c')
-rw-r--r-- | doc/oldfmt.c | 218 |
1 files changed, 0 insertions, 218 deletions
diff --git a/doc/oldfmt.c b/doc/oldfmt.c deleted file mode 100644 index 19fbffcc5..000000000 --- a/doc/oldfmt.c +++ /dev/null @@ -1,218 +0,0 @@ -/* Copyright (C) 2000,2001 Free Software Foundation, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this software; see the file COPYING. If not, write to - * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, - * Boston, MA 02111-1307 USA - * - * As a special exception, the Free Software Foundation gives permission - * for additional uses of the text contained in its release of GUILE. - * - * The exception is that, if you link the GUILE library with other files - * to produce an executable, this does not by itself cause the - * resulting executable to be covered by the GNU General Public License. - * Your use of that executable is in no way restricted on account of - * linking the GUILE library code into it. - * - * This exception does not however invalidate any other reasons why - * the executable file might be covered by the GNU General Public License. - * - * This exception applies only to the code released by the - * Free Software Foundation under the name GUILE. If you copy - * code from other Free Software Foundation releases into a copy of - * GUILE, as the General Public License permits, the exception does - * not apply to the code that you add in this way. To avoid misleading - * anyone as to the status of such modified files, you must delete - * this exception notice from them. - * - * If you write modifications of your own for GUILE, it is your choice - * whether to permit this exception to apply to your modifications. - * If you do not wish that, delete this exception notice. - */ - - - -/* From NEWS: - * - * * New primitive: `simple-format', affects `scm-error', scm_display_error, & scm_error message strings - * - * (ice-9 boot) makes `format' an alias for `simple-format' until possibly - * extended by the more sophisticated version in (ice-9 format) - * - * (simple-format port message . args) - * Write MESSAGE to DESTINATION, defaulting to `current-output-port'. - * MESSAGE can contain ~A (was %s) and ~S (was %S) escapes. When printed, - * the escapes are replaced with corresponding members of ARGS: - * ~A formats using `display' and ~S formats using `write'. - * If DESTINATION is #t, then use the `current-output-port', - * if DESTINATION is #f, then return a string containing the formatted text. - * Does not add a trailing newline." - * - * The two C procedures: scm_display_error and scm_error, as well as the - * primitive `scm-error', now use scm_format to do their work. This means - * that the message strings of all code must be updated to use ~A where %s - * was used before, and ~S where %S was used before. - * - * During the period when there still are a lot of old Guiles out there, - * you might want to support both old and new versions of Guile. - * - * There are basically two methods to achieve this. Both methods use - * autoconf. Put - * - * AC_CHECK_FUNCS(scm_simple_format) - * - * in your configure.in. - * - * Method 1: Use the string concatenation features of ANSI C's - * preprocessor. - * - * In C: - * - * #ifdef HAVE_SCM_SIMPLE_FORMAT - * #define FMT_S "~S" - * #else - * #define FMT_S "%S" - * #endif - * - * Then represent each of your error messages using a preprocessor macro: - * - * #define E_SPIDER_ERROR "There's a spider in your " ## FMT_S ## "!!!" - * - * In Scheme: - * - * (define fmt-s (if (defined? 'simple-format) "~S" "%S")) - * (define make-message string-append) - * - * (define e-spider-error - * (make-message "There's a spider in your " fmt-s "!!!")) - * - * Method 2: Use the oldfmt function found in doc/oldfmt.c. - * - * In C: - * - * scm_misc_error ("picnic", scm_c_oldfmt0 ("There's a spider in your ~S!!!"), - * ...); - * - * In Scheme: - * - * (scm-error 'misc-error "picnic" (oldfmt "There's a spider in your ~S!!!") - * ...) - * - */ - -/* - * Take a format string FROM adhering to the new standard format (~A and ~S - * as placeholders) of length N and return a string which is adapted - * to the format used by the Guile interpreter which you are running. - * - * On successive calls with similar strings but different storage, the - * same string with same storage is returned. This is necessary since - * the existence of a garbage collector in the system may cause the same - * format string to be represented with different storage at different - * calls. - */ - -char * -scm_c_oldfmt (char *from, int n) -{ -#ifdef HAVE_SCM_SIMPLE_FORMAT - return from; -#else - static struct { int n; char *from; char *to; } *strings; - static int size = 0; - static int n_strings = 0; - char *to; - int i; - - for (i = 0; i < n_strings; ++i) - if (n == strings[i].n && strncmp (from, strings[i].from, n) == 0) - return strings[i].to; - - if (n_strings == size) - { - if (size == 0) - { - size = 10; - strings = scm_must_malloc (size * sizeof (*strings), s_oldfmt); - } - else - { - int oldsize = size; - size = 3 * oldsize / 2; - strings = scm_must_realloc (strings, - oldsize * sizeof (*strings), - size * sizeof (*strings), - s_oldfmt); - } - } - - strings[n_strings].n = n; - strings[n_strings].from = strncpy (scm_must_malloc (n, s_oldfmt), from, n); - to = strings[n_strings].to = scm_must_malloc (n + 1, s_oldfmt); - n_strings++; - - for (i = 0; i < n; ++i) - { - if (from[i] == '~' && ++i < n) - { - if (from[i] == 'A') - { - to[i - 1] = '%'; - to[i] = 's'; - } - else if (from[i] == 'S') - { - to[i - 1] = '%'; - to[i] = 'S'; - } - else - { - to[i - 1] = '~'; - to[i] = from[i]; - } - continue; - } - to[i] = from[i]; - } - to[i] = '\0'; - - return to; -#endif -} - -char * -scm_c_oldfmt0 (char *s) -{ -#ifdef HAVE_SCM_SIMPLE_FORMAT - return s; -#else - return scm_c_oldfmt (s, strlen (s)); -#endif -} - -SCM_PROC (s_oldfmt, "oldfmt", 1, 0, 0, scm_oldfmt); - -SCM -scm_oldfmt (SCM s) -{ -#ifdef HAVE_SCM_SIMPLE_FORMAT - return s; -#else - int n; - SCM_ASSERT (SCM_NIMP (s) && SCM_STRINGP (s), s, 1, s_oldfmt); - n = SCM_LENGTH (s); - return scm_return_first (scm_mem2string (scm_c_oldfmt (SCM_ROCHARS (s), n), - n), - s); -#endif -} |