/*-------------------------------------------------------------------------*//**   @file    iniparser.c   @author  N. Devillard   @date    Sep 2007   @version 3.0   @brief   Parser for ini files.*//*--------------------------------------------------------------------------*//*    $Id: iniparser.c,v 2.18 2008-01-03 18:35:39 ndevilla Exp $    $Revision: 2.18 $    $Date: 2008-01-03 18:35:39 $*//*---------------------------- Includes ------------------------------------*/#include <ctype.h>#include "iniparser.h"/*---------------------------- Defines -------------------------------------*/#define ASCIILINESZ         (1024)#define INI_INVALID_KEY     ((char*)-1)/*---------------------------------------------------------------------------                        Private to this module ---------------------------------------------------------------------------*//** * This enum stores the status for each parsed line (internal use only). */typedef enum _line_status_ {    LINE_UNPROCESSED,    LINE_ERROR,    LINE_EMPTY,    LINE_COMMENT,    LINE_SECTION,    LINE_VALUE} line_status ;/*-------------------------------------------------------------------------*//**  @brief	Convert a string to lowercase.  @param	s	String to convert.  @return	ptr to statically allocated string.  This function returns a pointer to a statically allocated string  containing a lowercased version of the input string. Do not free  or modify the returned string! Since the returned string is statically  allocated, it will be modified at each function call (not re-entrant). *//*--------------------------------------------------------------------------*/static char * strlwc(const char * s){    static char l[ASCIILINESZ+1];    int i ;    if (s==NULL) return NULL ;    memset(l, 0, ASCIILINESZ+1);    i=0 ;    while (s[i] && i<ASCIILINESZ) {        l[i] = (char)tolower((int)s[i]);        i++ ;    }    l[ASCIILINESZ]=(char)0;    return l ;}/*-------------------------------------------------------------------------*//**  @brief	Remove blanks at the beginning and the end of a string.  @param	s	String to parse.  @return	ptr to statically allocated string.  This function returns a pointer to a statically allocated string,  which is identical to the input string, except that all blank  characters at the end and the beg. of the string have been removed.  Do not free or modify the returned string! Since the returned string  is statically allocated, it will be modified at each function call  (not re-entrant). *//*--------------------------------------------------------------------------*/static char * strstrip(char * s){    static char l[ASCIILINESZ+1];	char * last ;	    if (s==NULL) return NULL ;    	while (isspace((int)*s) && *s) s++;	memset(l, 0, ASCIILINESZ+1);	strcpy(l, s);	last = l + strlen(l);	while (last > l) {		if (!isspace((int)*(last-1)))			break ;		last -- ;	}	*last = (char)0;	return (char*)l ;}/*-------------------------------------------------------------------------*//**  @brief    Get number of sections in a dictionary  @param    d   Dictionary to examine  @return   int Number of sections found in dictionary  This function returns the number of sections found in a dictionary.  The test to recognize sections is done on the string stored in the  dictionary: a section name is given as "section" whereas a key is  stored as "section:key", thus the test looks for entries that do not  contain a colon.  This clearly fails in the case a section name contains a colon, but  this should simply be avoided.  This function returns -1 in case of error. *//*--------------------------------------------------------------------------*/int iniparser_getnsec(dictionary * d){    int i ;    int nsec ;    if (d==NULL) return -1 ;    nsec=0 ;    for (i=0 ; i<d->size ; i++) {        if (d->key[i]==NULL)            continue ;        if (strchr(d->key[i], ':')==NULL) {            nsec ++ ;        }    }    return nsec ;}/*-------------------------------------------------------------------------*//**  @brief    Get name for section n in a dictionary.  @param    d   Dictionary to examine  @param    n   Section number (from 0 to nsec-1).  @return   Pointer to char string  This function locates the n-th section in a dictionary and returns  its name as a pointer to a string statically allocated inside the  dictionary. Do not free or modify the returned string!  This function returns NULL in case of error. *//*--------------------------------------------------------------------------*/char * iniparser_getsecname(dictionary * d, int n){    int i ;    int foundsec ;    if (d==NULL || n<0) return NULL ;    foundsec=0 ;    for (i=0 ; i<d->size ; i++) {        if (d->key[i]==NULL)            continue ;        if (strchr(d->key[i], ':')==NULL) {            foundsec++ ;            if (foundsec>n)                break ;        }    }    if (foundsec<=n) {        return NULL ;    }    return d->key[i] ;}/*-------------------------------------------------------------------------*//**  @brief    Dump a dictionary to an opened file pointer.  @param    d   Dictionary to dump.  @param    f   Opened file pointer to dump to.  @return   void  This function prints out the contents of a dictionary, one element by  line, onto the provided file pointer. It is OK to specify @c stderr  or @c stdout as output files. This function is meant for debugging  purposes mostly. *//*--------------------------------------------------------------------------*/void iniparser_dump(dictionary * d, FILE * f){    int     i ;    if (d==NULL || f==NULL) return ;    for (i=0 ; i<d->size ; i++) {        if (d->key[i]==NULL)            continue ;        if (d->val[i]!=NULL) {            fprintf(f, "[%s]=[%s]\n", d->key[i], d->val[i]);        } else {            fprintf(f, "[%s]=UNDEF\n", d->key[i]);        }    }    return ;}/*-------------------------------------------------------------------------*//**  @brief    Save a dictionary to a loadable ini file  @param    d   Dictionary to dump  @param    f   Opened file pointer to dump to  @return   void  This function dumps a given dictionary into a loadable ini file.  It is Ok to specify @c stderr or @c stdout as output files. *//*--------------------------------------------------------------------------*/void iniparser_dump_ini(dictionary * d, FILE * f){    int     i, j ;    char    keym[ASCIILINESZ+1];    int     nsec ;    char *  secname ;    int     seclen ;    if (d==NULL || f==NULL) return ;    nsec = iniparser_getnsec(d);    if (nsec<1) {        /* No section in file: dump all keys as they are */        for (i=0 ; i<d->size ; i++) {            if (d->key[i]==NULL)                continue ;            fprintf(f, "%s = %s\n", d->key[i], d->val[i]);        }        return ;    }    for (i=0 ; i<nsec ; i++) {        secname = iniparser_getsecname(d, i) ;        seclen  = (int)strlen(secname);        fprintf(f, "\n[%s]\n", secname);        sprintf(keym, "%s:", secname);        for (j=0 ; j<d->size ; j++) {            if (d->key[j]==NULL)                continue ;            if (!strncmp(d->key[j], keym, seclen+1)) {                fprintf(f,                        "%-30s = %s\n",                        d->key[j]+seclen+1,                        d->val[j] ? d->val[j] : "");            }        }    }    fprintf(f, "\n");    return ;}/*-------------------------------------------------------------------------*//**  @brief    Get the string associated to a key  @param    d       Dictionary to search  @param    key     Key string to look for  @param    def     Default value to return if key not found.  @return   pointer to statically allocated character string  This function queries a dictionary for a key. A key as read from an  ini file is given as "section:key". If the key cannot be found,  the pointer passed as 'def' is returned.  The returned char pointer is pointing to a string allocated in  the dictionary, do not free or modify it. *//*--------------------------------------------------------------------------*/char * iniparser_getstring(dictionary * d, const char * key, char * def){    char * lc_key ;    char * sval ;    if (d==NULL || key==NULL)        return def ;    lc_key = strlwc(key);    sval = dictionary_get(d, lc_key, def);    return sval ;}/*-------------------------------------------------------------------------*//**  @brief    Get the string associated to a key, convert to an int  @param    d Dictionary to search  @param    key Key string to look for  @param    notfound Value to return in case of error  @return   integer  This function queries a dictionary for a key. A key as read from an  ini file is given as "section:key". If the key cannot be found,  the notfound value is returned.  Supported values for integers include the usual C notation  so decimal, octal (starting with 0) and hexadecimal (starting with 0x)  are supported. Examples:  "42"      ->  42  "042"     ->  34 (octal -> decimal)  "0x42"    ->  66 (hexa  -> decimal)  Warning: the conversion may overflow in various ways. Conversion is  totally outsourced to strtol(), see the associated man page for overflow  handling.  Credits: Thanks to A. Becker for suggesting strtol() *//*--------------------------------------------------------------------------*/int iniparser_getint(dictionary * d, const char * key, int notfound){    char    *   str ;    str = iniparser_getstring(d, key, INI_INVALID_KEY);    if (str==INI_INVALID_KEY) return notfound ;    return (int)strtol(str, NULL, 0);}/*-------------------------------------------------------------------------*//**  @brief    Get the string associated to a key, convert to a double  @param    d Dictionary to search  @param    key Key string to look for  @param    notfound Value to return in case of error  @return   double