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author | Jose Antonio Ortega Ruiz <jao@gnu.org> | 2006-03-20 22:46:46 +0000 |
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committer | Jose Antonio Ortega Ruiz <jao@gnu.org> | 2006-03-20 22:46:46 +0000 |
commit | 300160e73da486946ae513f1d039dcd7b85ff17c (patch) | |
tree | f26691ff724b57dac450ab47e4eea91e63cdadc1 /mixlib/mix_file.c | |
parent | 50375f34b611281a3b05a37221e2baa143f5f5ca (diff) | |
download | mdk-300160e73da486946ae513f1d039dcd7b85ff17c.tar.gz mdk-300160e73da486946ae513f1d039dcd7b85ff17c.tar.bz2 |
Version 1.2.1 imported1.2.1
git-archimport-id: mdk@sv.gnu.org/mdk--devel--1--patch-1
Diffstat (limited to 'mixlib/mix_file.c')
-rw-r--r-- | mixlib/mix_file.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/mixlib/mix_file.c b/mixlib/mix_file.c new file mode 100644 index 0000000..383d3b4 --- /dev/null +++ b/mixlib/mix_file.c @@ -0,0 +1,159 @@ +/* -*-c-*- -------------- mix_file.c : + * Implementation of the functions declared in mix_file.h + * ------------------------------------------------------------------ + * 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 of the License, 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 program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#include <string.h> + +#include "xmix_io.h" +#include "mix_file.h" + +const gchar *MIX_SRC_DEFEXT = ".mixal", + *MIX_LIST_DEFEXT = ".mls", *MIX_CODE_DEFEXT = ".mix"; + +/* file names completions */ +#define needs_completion_(name,defext) \ + ( strcmp(name + strlen(name) - strlen(defext), defext) != 0 ) + +#define add_completion_(name, defext) \ + g_strconcat(name, defext, NULL) + +/* The actual definition of mix_file_t */ +struct mix_file_t +{ + mix_iochannel_t parent; + gchar *base_name; + gchar *ext; +}; + +/* Creation/destruction of files */ +static mix_file_t * +open_file_(const gchar *name, mix_fmode_t mode) +{ + mix_file_t *result; + FILE *file; + const gchar *fmode = fmode_to_type_ (mode); + + /* if the read/write file already exists, open in r+ mode */ + if (mode == mix_io_RDWRT && (file = fopen (name, "r"))) + { + fmode = "r+"; + fclose (file); + } + + result = g_new(mix_file_t, 1); + file = fopen(name, fmode); + if ( file == NULL ) { + g_free (result); + return NULL; + } + io_init_from_file_(MIX_IOCHANNEL(result), file); + return result; +} + +mix_file_t * +mix_file_new(const gchar *name, mix_fmode_t mode) +{ + mix_file_t *result; + gchar *bname; + + if ( name == NULL ) return NULL; + bname = g_strdup(name); + if ( bname == NULL ) return NULL; + result = open_file_(name, mode); + if ( result == NULL ) + { + g_free(bname); + return NULL; + } + result->base_name = bname; + result->ext = NULL; + return result; +} + +/* creates a file adding to its name the defext if missing */ +mix_file_t * +mix_file_new_with_def_ext(const gchar *name, mix_fmode_t mode, + const gchar *defext) +{ + const gchar *real_name; + mix_file_t *result; + + if ( name == NULL ) return NULL; + if ( defext == NULL ) return mix_file_new(name, mode); + real_name = needs_completion_(name, defext) ? + add_completion_(name, defext) : name; + result = open_file_(real_name, mode); + if ( real_name != name ) g_free((void *)real_name); + if ( result == NULL ) return NULL; + result->ext = g_strdup(defext); + if ( needs_completion_(name, defext) ) + result->base_name = g_strdup(name); + else + result->base_name = g_strndup(name, strlen(name) - strlen(defext)); + if ( result->ext == NULL || result->base_name == NULL ) + { + mix_file_delete(result); + return NULL; + } + return result; +} + +void +mix_file_delete(mix_file_t *file) +{ + g_return_if_fail(file != NULL); + io_close_(MIX_IOCHANNEL(file)); + if (file->base_name) g_free(file->base_name); + if (file->ext) g_free(file->ext); + g_free(file); +} + +/* convert to a standard FILE */ +extern FILE * +mix_file_to_FILE(const mix_file_t *file) +{ + if ( file == NULL ) return NULL; + return io_get_FILE_(file); +} + +/* complete a name with an extension, if needed */ +gchar * +mix_file_complete_name (const gchar *name, const gchar *extension) +{ + if (!name) return NULL; + if (!extension || !needs_completion_ (name, extension)) + return g_strdup (name); + return add_completion_ (name, extension); +} + +/* Get the base name and extension of file */ +const gchar * +mix_file_base_name(const mix_file_t *file) +{ + g_return_val_if_fail(file != NULL, NULL); + return file->base_name; +} + +const gchar * +mix_file_extension(const mix_file_t *file) +{ + g_return_val_if_fail(file != NULL, NULL); + return file->ext; +} |