Separate CVS parsing logic from tools/mksyscall.c; Create tools/mksymtab.c to create symbol tables from CSV files

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5075 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 205 insertions, 0 deletions

diff --git a/nuttx/tools/csvparser.c b/nuttx/tools/csvparser.c
new file mode 100644
index 000000000..739e5e1f8
--- /dev/null
+++ b/nuttx/tools/csvparser.c
@@ -0,0 +1,205 @@
+/****************************************************************************
+ * tools/csvparser.c
+ *
+ *   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <errno.h>
+
+#include "csvparser.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+bool g_debug;
+char g_line[LINESIZE+1];
+char g_parm[MAX_FIELDS][MAX_PARMSIZE];
+int g_lineno;
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+static char *skip_space(char *ptr)
+{
+  while (*ptr && isspace((int)*ptr)) ptr++;
+  return ptr;
+}
+
+static char *copy_parm(char *src, char *dest)
+{
+  char *start = src;
+  int i;
+
+  for (i = 0; i < MAX_PARMSIZE; i++)
+    {
+      if (*src == '"')
+        {
+          *dest = '\0';
+          return src;
+        }
+      else if (*src == '\n' || *src == '\0')
+        {
+          fprintf(stderr, "%d: Unexpected end of line: \"%s\"\n", g_lineno, start);
+          exit(4);
+        }
+      else
+        {
+          *dest++ = *src++;
+        }
+    }
+
+  fprintf(stderr, "%d: Parameter too long: \"%s\"\n", g_lineno, start);
+  exit(3);
+}
+
+static char *find_parm(char *ptr)
+{
+  char *start = ptr;
+
+  if (*ptr != '"')
+    {
+      fprintf(stderr, "%d: I'm confused: \"%s\"\n", g_lineno, start);
+      exit(5);
+    }
+  ptr++;
+
+  ptr = skip_space(ptr);
+  if (*ptr == '\n' || *ptr == '\0')
+    {
+      return NULL;
+    }
+  else if (*ptr != ',')
+    {
+      fprintf(stderr, "%d: Expected ',': \"%s\"\n", g_lineno, start);
+      exit(6);
+    }
+  ptr++;
+
+  ptr = skip_space(ptr);
+  if (*ptr != '"')
+    {
+      fprintf(stderr, "%d: Expected \": \"%s\"\n", g_lineno, start);
+      exit(7);
+    }
+  ptr++;
+
+  return ptr;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+char *read_line(FILE *stream)
+{
+  char *ptr;
+
+  for (;;)
+    {
+      g_line[LINESIZE] = '\0';
+      if (!fgets(g_line, LINESIZE, stream))
+        {
+          return NULL;
+        }
+      else
+        {
+          g_lineno++;
+          if (g_debug)
+            {
+              printf("Line: %s\n", g_line);
+            }
+
+          ptr = skip_space(g_line);
+          if (*ptr && *ptr != '#' && *ptr != '\n')
+            {
+              return ptr;
+            }
+        }
+    }
+}
+
+int parse_csvline(char *ptr)
+{
+  int nparms;
+  int i;
+
+  /* Format "arg1","arg2","arg3",... Spaces will be tolerated outside of the
+   * quotes.  Any initial spaces have already been skipped so the first thing
+   * should be '"'.
+   */
+
+  if (*ptr != '"')
+    {
+      fprintf(stderr, "%d: Bad line: \"%s\"\n", g_lineno, g_line);
+      exit(2);
+    }
+
+  ptr++;
+  nparms = 0;
+
+  do
+    {
+      ptr = copy_parm(ptr, &g_parm[nparms][0]);
+      nparms++;
+      ptr = find_parm(ptr);
+    }
+  while (ptr);
+
+  if (g_debug)
+    {
+      printf("Parameters: %d\n", nparms);
+      for (i = 0; i < nparms; i++)
+        {
+          printf("  Parm%d: \"%s\"\n", i+1, g_parm[i]);
+        }
+    }
+  return nparms;
+}