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Diffstat (limited to 'nuttx/tools/cfgparser.c')
| -rw-r--r-- | nuttx/tools/cfgparser.c | 296 |
1 files changed, 0 insertions, 296 deletions
diff --git a/nuttx/tools/cfgparser.c b/nuttx/tools/cfgparser.c deleted file mode 100644 index ac25bd26b..000000000 --- a/nuttx/tools/cfgparser.c +++ /dev/null @@ -1,296 +0,0 @@ -/**************************************************************************** - * tools/cfgpaser.c - * - * Copyright (C) 2007-2012 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 <string.h> -#include <stdlib.h> -#include <ctype.h> - -#include "cfgparser.h" - -/**************************************************************************** - * Definitions - ****************************************************************************/ - -/**************************************************************************** - * Public Data - ****************************************************************************/ - -char line[LINESIZE+1]; - -/**************************************************************************** - * Private Data - ****************************************************************************/ - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - - /* Skip over any spaces */ - -static char *skip_space(char *ptr) -{ - while (*ptr && isspace((int)*ptr)) ptr++; - return ptr; -} - -/* Find the end of a variable string */ - -static char *find_name_end(char *ptr) -{ - while (*ptr && (isalnum((int)*ptr) || *ptr == '_')) ptr++; - return ptr; -} - -/* Find the end of a value string */ - -static char *find_value_end(char *ptr) -{ - while (*ptr && !isspace((int)*ptr)) - { - if (*ptr == '"') - { - do ptr++; while (*ptr && *ptr != '"'); - if (*ptr) ptr++; - } - else - { - do ptr++; while (*ptr && !isspace((int)*ptr) && *ptr != '"'); - } - } - return ptr; -} - -/* Read the next line from the configuration file */ - -static char *read_line(FILE *stream) -{ - char *ptr; - - for (;;) - { - line[LINESIZE] = '\0'; - if (!fgets(line, LINESIZE, stream)) - { - return NULL; - } - else - { - ptr = skip_space(line); - if (*ptr && *ptr != '#' && *ptr != '\n') - { - return ptr; - } - } - } -} - -/* Parse the line from the configuration file into a variable name - * string and a value string. - */ - -static void parse_line(char *ptr, char **varname, char **varval) -{ - /* Skip over any leading spaces */ - - ptr = skip_space(ptr); - - /* The first no-space is the beginning of the variable name */ - - *varname = skip_space(ptr); - *varval = NULL; - - /* Parse to the end of the variable name */ - - ptr = find_name_end(ptr); - - /* An equal sign is expected next, perhaps after some white space */ - - if (*ptr && *ptr != '=') - { - /* Some else follows the variable name. Terminate the variable - * name and skip over any spaces. - */ - - *ptr = '\0'; - ptr = skip_space(ptr + 1); - } - - /* Verify that the equal sign is present */ - - if (*ptr == '=') - { - /* Make sure that the variable name is terminated (this was already - * done if the name was followed by white space. - */ - - *ptr = '\0'; - - /* The variable value should follow =, perhaps separated by some - * white space. - */ - - ptr = skip_space(ptr + 1); - if (*ptr) - { - /* Yes.. a variable follows. Save the pointer to the start - * of the variable string. - */ - - *varval = ptr; - - /* Find the end of the variable string and make sure that it - * is terminated. - */ - - ptr = find_value_end(ptr); - *ptr = '\0'; - } - } -} - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -void parse_file(FILE *stream, struct variable_s **list) -{ - struct variable_s *curr; - struct variable_s *prev; - struct variable_s *next; - char *varname; - char *varval; - char *ptr; - - /* Loop until the entire file has been parsed. */ - - do - { - /* Read the next line from the file */ - - ptr = read_line(stream); - if (ptr) - { - /* Parse the line into a variable and a value field */ - - parse_line(ptr, &varname, &varval); - - /* If the variable has not value (or the special value 'n'), then - * ignore it. - */ - - if (!varval || strcmp(varval, "n") == 0) - { - continue; - } - - /* Make sure that a variable name was found. */ - - if (varname) - { - int varlen = strlen(varname) + 1; - int vallen = 0; - - /* Get the size of the value, including the NUL terminating - * character. - */ - - if (varval) - { - vallen = strlen(varval) + 1; - } - - /* Allocate memory to hold the struct variable_s with the - * variable name and the value. - */ - - curr = (struct variable_s *)malloc(sizeof(struct variable_s) + varlen + vallen - 1); - if (curr) - { - /* Add the variable to the list */ - - curr->var = &curr->storage[0]; - strcpy(curr->var, varname); - - curr->val = NULL; - if (varval) - { - curr->val = &curr->storage[varlen]; - strcpy(curr->val, varval); - } - } - - prev = 0; - next = *list; - while (next && strcmp(next->var, curr->var) <= 0) - { - prev = next; - next = next->flink; - } - - if (prev) - { - prev->flink = curr; - } - else - { - *list = curr; - } - - curr->flink = next; - } - } - } - while (ptr); -} - -struct variable_s *find_variable(const char *varname, struct variable_s *list) -{ - while (list) - { - if (strcmp(varname, list->var) == 0) - { - return list; - } - - list = list->flink; - } - - return NULL; -} - |