--- /dev/null
+#include <string.h>
+#include <stdlib.h>
+#include <libchimara/glk.h>
+#include <libchimara/glkstart.h>
+#include "chimara-glk-private.h"
+#include "magic.h"
+#include "fileref.h"
+#include "stream.h"
+
+extern ChimaraGlkPrivate *glk_data;
+
+/**
+ * glkunix_stream_open_pathname:
+ * @pathname: A path to a file, in the system filename encoding.
+ * @usage: Bitfield with one or more of the <code>fileusage_</code> constants.
+ * @rock: The new stream's rock value.
+ *
+ * Opens an arbitrary file, in read-only mode. Note that this function is
+ * <emphasis>only</emphasis> available during glkunix_startup_code(). It is
+ * inherently non-portable; it should not and cannot be called from inside
+ * glk_main().
+ *
+ * Returns: A new stream, or %NULL if the file operation failed.
+ */
+strid_t
+glkunix_stream_open_pathname(char *pathname, glui32 usage, glui32 rock)
+{
+ if(!glk_data->in_startup)
+ ILLEGAL("glkunix_stream_open_pathname() may only be called from "
+ "glkunix_startup_code().");
+
+ g_return_val_if_fail(pathname, NULL);
+ g_return_val_if_fail(strlen(pathname) > 0, NULL);
+
+ frefid_t fileref = fileref_new(pathname, rock, usage, filemode_Read);
+ return file_stream_new(fileref, filemode_Read, rock, FALSE);
+}
+
+/**
+ * glkunix_set_base_file:
+ * @filename: A path to a file, in the system filename encoding.
+ *
+ * Sets the library's idea of the <quote>current directory</quote> for the
+ * executing program. The argument should be the name of a file (not a
+ * directory). When this is set, glk_fileref_create_by_name() will create files
+ * in the same directory as that file, and glk_fileref_create_by_prompt() will
+ * base default filenames off of the file. If this is not called, the library
+ * works in the Unix current working directory, and picks reasonable default
+ * defaults.
+ */
+void
+glkunix_set_base_file(char *filename)
+{
+ g_return_if_fail(filename);
+ g_return_if_fail(strlen(filename) > 0);
+
+ gchar *dirname = g_path_get_dirname(filename);
+ if(!g_file_test(dirname, G_FILE_TEST_IS_DIR))
+ {
+ WARNING_S("Not a directory", dirname);
+ g_free(dirname);
+ return;
+ }
+
+ glk_data->current_dir = dirname;
+}
+
+/* Internal function: parse the command line, getting only the arguments
+ requested by the plugin in its glkunix_arguments structure. Algorithm copied
+ from CheapGlk by Andrew Plotkin. */
+gboolean
+parse_command_line(glkunix_argumentlist_t glkunix_arguments[], int argc, char *argv[], glkunix_startup_t *data)
+{
+ GSList *arglist = NULL, *iter;
+ int arg;
+
+ /* Now some argument-parsing. This is probably going to hurt. */
+ for(arg = 1; arg < argc; arg++)
+ {
+ glkunix_argumentlist_t *argform;
+ char *numptr;
+
+ for(argform = glkunix_arguments; argform->argtype != glkunix_arg_End; argform++)
+ {
+ if(argform->name[0] == '\0')
+ {
+ if(((argform->argtype == glkunix_arg_ValueFollows ||
+ argform->argtype == glkunix_arg_ValueCanFollow) &&
+ argv[arg][0] != '-') ||
+ (argform->argtype == glkunix_arg_NumberValue &&
+ (atoi(argv[arg]) != 0 || argv[arg][0] == '0')))
+ {
+ arglist = g_slist_prepend(arglist, argv[arg]);
+ }
+ else
+ continue;
+ }
+
+ else if((argform->argtype == glkunix_arg_NumberValue)
+ && !strncmp(argv[arg], argform->name, strlen(argform->name))
+ && (numptr = argv[arg] + strlen(argform->name))
+ && (atoi(numptr) != 0 || numptr[0] == '0'))
+ {
+ arglist = g_slist_prepend(arglist, argv[arg]);
+ }
+
+ else if(strcmp(argv[arg], argform->name) == 0)
+ {
+ if(argform->argtype == glkunix_arg_ValueFollows)
+ {
+ if(arg + 1 >= argc) {
+ g_slist_free(arglist);
+ return FALSE; /* No more arguments, and this one is invalid */
+ }
+ arglist = g_slist_prepend(arglist, argv[arg++]);
+ arglist = g_slist_prepend(arglist, argv[arg]);
+ }
+
+ else if(argform->argtype == glkunix_arg_NoValue)
+ arglist = g_slist_prepend(arglist, argv[arg]);
+
+ else if(argform->argtype == glkunix_arg_ValueCanFollow)
+ {
+ arglist = g_slist_prepend(arglist, argv[arg]);
+ if(arg + 1 < argc && argv[arg + 1][0] != '-')
+ arglist = g_slist_prepend(arglist, argv[++arg]);
+ }
+
+ else if(argform->argtype == glkunix_arg_NumberValue)
+ {
+ if(arg + 1 >= argc || (atoi(argv[arg + 1]) == 0 && argv[arg + 1][0] != '0'))
+ {
+ g_slist_free(arglist);
+ return FALSE;
+ }
+ arglist = g_slist_prepend(arglist, argv[arg++]);
+ arglist = g_slist_prepend(arglist, argv[arg]);
+ }
+ else
+ {
+ g_slist_free(arglist);
+ return FALSE;
+ }
+ }
+ }
+ }
+
+ data->argc = g_slist_length(arglist) + 1;
+ data->argv = g_new0(char *, data->argc);
+ arglist = g_slist_reverse(arglist);
+ for(iter = arglist, arg = 1; iter; iter = g_slist_next(iter), arg++)
+ data->argv[arg] = g_strdup(iter->data);
+ g_slist_free(arglist);
+
+ return TRUE;
+}
\ No newline at end of file
projects / rodin / chimara.git / blobdiff