e2e31d1ae34fe4cdcc97be98a4bc2f35a9cd2037

Contains my string stripper utility. Used by the VCD input module

Signed-off-by: Michel Pollet <buserror@gmail.com>

diff --git a/simavr/sim/sim_utils.c b/simavr/sim/sim_utils.c
new file mode 100644 (file)
index 0000000..eeb4986
--- /dev/null
+++ b/simavr/sim/sim_utils.c
@@ -0,0 +1,68 @@
+/*
+       sim_utils.c
+
+       Implements a Value Change Dump file outout to generate
+       traces & curves and display them in gtkwave.
+
+       Copyright 2008, 2009 Michel Pollet <buserror@gmail.com>
+
+       This file is part of simavr.
+
+       simavr 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 3 of the License, or
+       (at your option) any later version.
+
+       simavr 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 simavr.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <string.h>
+#include <stdlib.h>
+
+#include "sim_utils.h"
+
+static argv_p
+argv_realloc(
+       argv_p  argv,
+       uint32_t size )
+{
+       argv = realloc(argv,
+                               sizeof(argv_t) + (size * sizeof(argv->argv[0])));
+       argv->size = size;
+       return argv;
+}
+
+argv_p
+argv_parse(
+       argv_p  argv,
+       char * line )
+{
+       if (!argv)
+               argv = argv_realloc(argv, 8);
+       argv->argc = 0;
+
+       /* strip end of lines and trailing spaces */
+       char *d = line + strlen(line);
+       while ((d - line) > 0 && *(--d) <= ' ')
+               *d = 0;
+       /* stop spaces + tabs */
+       char *s = line;
+       while (*s && *s <= ' ')
+               s++;
+       argv->line = s;
+       char * a = NULL;
+       do {
+               if (argv->argc == argv->size)
+                       argv = argv_realloc(argv, argv->size + 8);
+               if ((a = strsep(&s, " \t")) != NULL)
+                       argv->argv[argv->argc++] = a;
+       } while (a);
+       argv->argv[argv->argc] = NULL;
+       return argv;
+}

diff --git a/simavr/sim/sim_utils.h b/simavr/sim/sim_utils.h
new file mode 100644 (file)
index 0000000..44cb2c5
--- /dev/null
+++ b/simavr/sim/sim_utils.h
@@ -0,0 +1,51 @@
+/*
+       sim_utils.h
+
+       Implements a Value Change Dump file outout to generate
+       traces & curves and display them in gtkwave.
+
+       Copyright 2008, 2009 Michel Pollet <buserror@gmail.com>
+
+       This file is part of simavr.
+
+       simavr 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 3 of the License, or
+       (at your option) any later version.
+
+       simavr 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 simavr.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __SIM_UTILS_H__
+#define __SIM_UTILS_H__
+
+#include <stdint.h>
+
+typedef struct argv_t {
+       uint32_t size, argc;
+       char * line;
+       char * argv[];
+} argv_t, *argv_p;
+
+/*
+ * Allocate a argv_t structure, split 'line' into words (destructively)
+ * and fills up argc, and argv fields with pointers to the individual
+ * words. The line is stripped of any \r\n as well
+ * You can pass an already allocated argv_t for it to be reused (and
+ * grown to fit).
+ *
+ * You are still responsible, as the caller, to (free) the resulting
+ * pointer, and the 'line' text, if appropriate, no duplication is made
+ */
+argv_p
+argv_parse(
+       argv_p  argv,
+       char * line );
+
+#endif /* __SIM_UTILS_H__ */