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/****************************************************************************
*
* Copyright 2016 Samsung Electronics All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied. See the License for the specific
* language governing permissions and limitations under the License.
*
****************************************************************************/
/****************************************************************************
* 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
****************************************************************************/
/****************************************************************************
* Name: skip_space
****************************************************************************/
static char *skip_space(char *ptr)
{
while (*ptr && isspace((int)*ptr))
ptr++;
return ptr;
}
/****************************************************************************
* Name: copy_parm
****************************************************************************/
static char *copy_parm(char *src, char *dest)
{
char *start = src;
int i;
/* De-quote the parameter and copy it into the parameter array */
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);
}
/****************************************************************************
* Name: find_parm
****************************************************************************/
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
****************************************************************************/
/****************************************************************************
* Name: read_line
****************************************************************************/
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;
}
}
}
/****************************************************************************
* Name: parse_csvline
****************************************************************************/
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;
/* Copy each comma-separated value in an array (stripping quotes from each
* of the values).
*/
do {
ptr = copy_parm(ptr, &g_parm[nparms][0]);
nparms++;
ptr = find_parm(ptr);
} while (ptr);
/* If debug is enabled, show what we got */
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;
}
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