new file

2 files changed, 166 insertions, 0 deletions

diff --git a/mixlib/mix_src_file.c b/mixlib/mix_src_file.c
new file mode 100644
index 0000000..b8c4356
--- /dev/null
+++ b/mixlib/mix_src_file.c
@@ -0,0 +1,109 @@
+/* -*-c-*- -------------- mix_src_file.c :
+ * Implementation of the functions declared in mix_src_file.h
+ * ------------------------------------------------------------------
+ *  Last change: Time-stamp: "00/12/16 16:41:46 jose"
+ * ------------------------------------------------------------------
+ * Copyright (C) 2000 jose antonio ortega ruiz <jaortega@acm.org>
+ *  
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *  
+ */
+
+
+#include "mix_src_file.h"
+
+/* the MIXAL source file type */
+struct mix_src_file_t 
+{
+  gchar *path;			/* the path to the disk file */
+  GPtrArray *lines;		/* an array of the file lines */
+  guint lineno;			/* the number of lines */
+};
+  
+
+/* create a new src file from an existing disk file */
+mix_src_file_t *
+mix_src_file_new_for_read (const gchar *path)
+{
+  mix_file_t *file = mix_file_new_with_def_ext (path,
+						mix_io_READ,
+						MIX_SRC_DEFEXT);
+  if (file == NULL)
+    return NULL;
+  else
+    {
+      mix_src_file_t *result = g_new (mix_src_file_t, 1);
+      FILE  *f = mix_file_to_FILE (file);
+      result->lines = g_prt_array_new ();
+      result->path = path;
+      result->lineno = 0;
+      
+      ssize_t s = 0;
+      gchar *newline = NULL;
+      size_t a = 0;
+      
+      while (s != -1)
+	{
+	  s = getline (&newline, &a, f);
+	  if (s>0)
+	    {
+	      g_ptr_array_add (result->lines, (gpointer) newline);
+	      result->lineno++;
+	    }
+	  newline = NULL;
+	  a = 0;
+	}
+      
+      mix_file_delete (file);
+      return result;
+    }
+}
+
+/* destroy a src file object */
+void
+mix_src_file_delete (mix_src_file_t *src)
+{
+  g_return_val_if_fail (src != NULL, NULL);
+  g_ptr_array_free (src->lines);
+  g_free (src);
+}
+
+/* get the source file path */
+const gchar *
+mix_src_file_get_path (const mix_src_file_t *src)
+{
+  g_return_val_if_fail (src != NULL, NULL);
+  return src->path;
+}
+
+/* get a given line of the source file */
+const gchar *
+mix_src_file_get_line (const mix_src_file_t *src, guint lineno)
+{
+  g_return_val_if_fail (src != NULL, NULL);
+  if (lineno > src->lineo || lineno == 0)
+    return NULL;
+  else
+    return (gchar *)g_prt_array_index (src->lines, lineno - 1);
+}
+
+/* get the total no. of lines in the file */
+guint
+mix_src_file_get_line_no (const mix_src_file_t *src)
+{
+  g_return_val_if_fail (src != NULL, NULL);
+  return src->lineno;
+}
+
diff --git a/mixlib/mix_src_file.h b/mixlib/mix_src_file.h
new file mode 100644
index 0000000..8f46111
--- /dev/null
+++ b/mixlib/mix_src_file.h
@@ -0,0 +1,57 @@
+/* -*-c-*- ---------------- mix_src_file.h :
+ * Declaration of mix_src_file_t, a type representing a MIXAL source
+ * file.
+ * ------------------------------------------------------------------
+ *  Last change: Time-stamp: <00/12/16 15:06:57 jose>
+ * ------------------------------------------------------------------
+ * Copyright (C) 2000 jose antonio ortega ruiz <jaortega@acm.org>
+ *  
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *  
+ */
+
+
+#ifndef MIX_SRC_FILE_H
+#define MIX_SRC_FILE_H
+
+#include "mix_file.h"
+
+/* the MIXAL source file type */
+typedef struct mix_src_file_t mix_src_file_t;
+
+/* create a new src file from an existing disk file */
+extern mix_src_file_t *
+mix_src_file_new_for_read (const gchar *path);
+
+/* destroy a src file object */
+extern void
+mix_src_file_delete (mix_src_file_t *src);
+
+/* get the source file path */
+extern const gchar *
+mix_src_file_get_path (const mix_src_file_t *src);
+
+/* get a given line of the source file */
+extern const gchar *
+mix_src_file_get_line (const mix_src_file_t *src, guint lineno);
+
+/* get the total no. of lines in the file */
+extern guint
+mix_src_file_get_line_no (const mix_src_file_t *src);
+
+
+
+#endif /* MIX_SRC_FILE_H */
+