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Resync new repository with old repo r5166
git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5153 42af7a65-404d-4744-a932-0658087f49c3
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patacongo
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/****************************************************************************
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* tools/csvparser.c
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*
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* Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <errno.h>
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#include "csvparser.h"
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/****************************************************************************
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* Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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bool g_debug;
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char g_line[LINESIZE+1];
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char g_parm[MAX_FIELDS][MAX_PARMSIZE];
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int g_lineno;
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: skip_space
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****************************************************************************/
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static char *skip_space(char *ptr)
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{
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while (*ptr && isspace((int)*ptr)) ptr++;
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return ptr;
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}
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/****************************************************************************
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* Name: copy_parm
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****************************************************************************/
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static char *copy_parm(char *src, char *dest)
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{
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char *start = src;
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int i;
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/* De-quote the parameter and copy it into the parameter array */
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for (i = 0; i < MAX_PARMSIZE; i++)
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{
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if (*src == '"')
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{
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*dest = '\0';
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return src;
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}
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else if (*src == '\n' || *src == '\0')
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{
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fprintf(stderr, "%d: Unexpected end of line: \"%s\"\n", g_lineno, start);
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exit(4);
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}
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else
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{
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*dest++ = *src++;
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}
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}
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fprintf(stderr, "%d: Parameter too long: \"%s\"\n", g_lineno, start);
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exit(3);
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}
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/****************************************************************************
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* Name: find_parm
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****************************************************************************/
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static char *find_parm(char *ptr)
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{
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char *start = ptr;
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if (*ptr != '"')
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{
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fprintf(stderr, "%d: I'm confused: \"%s\"\n", g_lineno, start);
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exit(5);
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}
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ptr++;
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ptr = skip_space(ptr);
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if (*ptr == '\n' || *ptr == '\0')
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{
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return NULL;
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}
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else if (*ptr != ',')
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{
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fprintf(stderr, "%d: Expected ',': \"%s\"\n", g_lineno, start);
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exit(6);
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}
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ptr++;
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ptr = skip_space(ptr);
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if (*ptr != '"')
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{
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fprintf(stderr, "%d: Expected \": \"%s\"\n", g_lineno, start);
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exit(7);
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}
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ptr++;
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return ptr;
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: read_line
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****************************************************************************/
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char *read_line(FILE *stream)
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{
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char *ptr;
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for (;;)
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{
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g_line[LINESIZE] = '\0';
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if (!fgets(g_line, LINESIZE, stream))
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{
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return NULL;
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}
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else
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{
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g_lineno++;
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if (g_debug)
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{
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printf("Line: %s\n", g_line);
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}
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ptr = skip_space(g_line);
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if (*ptr && *ptr != '#' && *ptr != '\n')
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{
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return ptr;
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}
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}
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}
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}
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/****************************************************************************
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* Name: parse_csvline
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****************************************************************************/
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int parse_csvline(char *ptr)
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{
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int nparms;
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int i;
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/* Format "arg1","arg2","arg3",... Spaces will be tolerated outside of the
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* quotes. Any initial spaces have already been skipped so the first thing
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* should be '"'.
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*/
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if (*ptr != '"')
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{
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fprintf(stderr, "%d: Bad line: \"%s\"\n", g_lineno, g_line);
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exit(2);
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}
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ptr++;
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nparms = 0;
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/* Copy each comma-separated value in an array (stripping quotes from each
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* of the values).
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*/
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do
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{
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ptr = copy_parm(ptr, &g_parm[nparms][0]);
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nparms++;
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ptr = find_parm(ptr);
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}
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while (ptr);
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/* If debug is enabled, show what we got */
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if (g_debug)
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{
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printf("Parameters: %d\n", nparms);
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for (i = 0; i < nparms; i++)
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{
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printf(" Parm%d: \"%s\"\n", i+1, g_parm[i]);
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}
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}
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return nparms;
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}
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