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/*-------------------------------------------------------------------------*/
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@version $Revision: 1753 $
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@brief Parser for ini files.
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/*--------------------------------------------------------------------------*/
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$Id: iniparser.c 1753 2007-01-31 09:36:08Z xalioth $
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$Date: 2007-01-31 04:36:08 -0500 (Wed, 31 Jan 2007) $
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/*---------------------------------------------------------------------------
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---------------------------------------------------------------------------*/
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#include "iniparser.h"
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#define ASCIILINESZ 1024
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#define INI_INVALID_KEY ((char*)-1)
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/*---------------------------------------------------------------------------
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Private to this module
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---------------------------------------------------------------------------*/
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/* Private: add an entry to the dictionary */
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static void iniparser_add_entry(
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char longkey[2*ASCIILINESZ+1];
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/* Make a key as section:keyword */
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sprintf(longkey, "%s:%s", sec, key);
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/* Add (key,val) to dictionary */
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dictionary_set(d, longkey, val);
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/*-------------------------------------------------------------------------*/
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@brief Get number of sections in a dictionary
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@param d Dictionary to examine
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@return int Number of sections found in dictionary
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This function returns the number of sections found in a dictionary.
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The test to recognize sections is done on the string stored in the
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dictionary: a section name is given as "section" whereas a key is
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stored as "section:key", thus the test looks for entries that do not
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This clearly fails in the case a section name contains a colon, but
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this should simply be avoided.
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This function returns -1 in case of error.
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/*--------------------------------------------------------------------------*/
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int iniparser_getnsec(dictionary * d)
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if (d==NULL) return -1 ;
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for (i=0 ; i<d->size ; i++) {
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if (strchr(d->key[i], ':')==NULL) {
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/*-------------------------------------------------------------------------*/
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@brief Get name for section n in a dictionary.
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@param d Dictionary to examine
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@param n Section number (from 0 to nsec-1).
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@return Pointer to char string
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This function locates the n-th section in a dictionary and returns
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its name as a pointer to a string statically allocated inside the
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dictionary. Do not free or modify the returned string!
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This function returns NULL in case of error.
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/*--------------------------------------------------------------------------*/
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char * iniparser_getsecname(dictionary * d, int n)
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if (d==NULL || n<0) return NULL ;
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for (i=0 ; i<d->size ; i++) {
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if (strchr(d->key[i], ':')==NULL) {
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/*-------------------------------------------------------------------------*/
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@brief Dump a dictionary to an opened file pointer.
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@param d Dictionary to dump.
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@param f Opened file pointer to dump to.
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This function prints out the contents of a dictionary, one element by
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line, onto the provided file pointer. It is OK to specify @c stderr
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or @c stdout as output files. This function is meant for debugging
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/*--------------------------------------------------------------------------*/
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void iniparser_dump(dictionary * d, FILE * f)
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if (d==NULL || f==NULL) return ;
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for (i=0 ; i<d->size ; i++) {
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if (d->val[i]!=NULL) {
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fprintf(f, "[%s]=[%s]\n", d->key[i], d->val[i]);
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fprintf(f, "[%s]=UNDEF\n", d->key[i]);
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/*-------------------------------------------------------------------------*/
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@brief Save a dictionary to a loadable ini file
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@param d Dictionary to dump
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@param f Opened file pointer to dump to
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This function dumps a given dictionary into a loadable ini file.
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It is Ok to specify @c stderr or @c stdout as output files.
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/*--------------------------------------------------------------------------*/
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void iniparser_dump_ini(dictionary * d, FILE * f)
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char keym[ASCIILINESZ+1];
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if (d==NULL || f==NULL) return ;
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nsec = iniparser_getnsec(d);
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/* No section in file: dump all keys as they are */
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for (i=0 ; i<d->size ; i++) {
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fprintf(f, "%s = %s\n", d->key[i], d->val[i]);
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for (i=0 ; i<nsec ; i++) {
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secname = iniparser_getsecname(d, i) ;
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seclen = (int)strlen(secname);
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fprintf(f, "\n[%s]\n", secname);
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sprintf(keym, "%s:", secname);
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for (j=0 ; j<d->size ; j++) {
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if (!strncmp(d->key[j], keym, seclen+1)) {
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d->val[j] ? d->val[j] : "");
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/*-------------------------------------------------------------------------*/
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@brief Get the string associated to a key, return NULL if not found
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@param d Dictionary to search
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@param key Key string to look for
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@return pointer to statically allocated character string, or NULL.
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This function queries a dictionary for a key. A key as read from an
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ini file is given as "section:key". If the key cannot be found,
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The returned char pointer is pointing to a string allocated in
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the dictionary, do not free or modify it.
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This function is only provided for backwards compatibility with
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previous versions of iniparser. It is recommended to use
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iniparser_getstring() instead.
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/*--------------------------------------------------------------------------*/
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const char * iniparser_getstr(const dictionary * d, const char * key)
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return iniparser_getstring(d, key, NULL);
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/*-------------------------------------------------------------------------*/
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@brief Get the string associated to a key
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@param d Dictionary to search
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@param key Key string to look for
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@param def Default value to return if key not found.
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@return pointer to statically allocated character string
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This function queries a dictionary for a key. A key as read from an
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ini file is given as "section:key". If the key cannot be found,
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the pointer passed as 'def' is returned.
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The returned char pointer is pointing to a string allocated in
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the dictionary, do not free or modify it.
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/*--------------------------------------------------------------------------*/
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const char * iniparser_getstring(const dictionary * d, const char * key, const char * def)
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const char * lc_key ;
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if (d==NULL || key==NULL)
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lc_key = strlwc(key);
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sval = dictionary_get(d, lc_key, def);
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/*-------------------------------------------------------------------------*/
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@brief Get the string associated to a key, convert to an int
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@param d Dictionary to search
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@param key Key string to look for
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@param notfound Value to return in case of error
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This function queries a dictionary for a key. A key as read from an
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ini file is given as "section:key". If the key cannot be found,
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the notfound value is returned.
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/*--------------------------------------------------------------------------*/
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int iniparser_getint(dictionary * d, const char * key, int notfound)
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str = iniparser_getstring(d, key, INI_INVALID_KEY);
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if (str==INI_INVALID_KEY) return notfound ;
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/*-------------------------------------------------------------------------*/
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@brief Get the string associated to a key, convert to a double
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@param d Dictionary to search
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@param key Key string to look for
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@param notfound Value to return in case of error
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This function queries a dictionary for a key. A key as read from an
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ini file is given as "section:key". If the key cannot be found,
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the notfound value is returned.
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/*--------------------------------------------------------------------------*/
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double iniparser_getdouble(dictionary * d, const char * key, double notfound)
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str = iniparser_getstring(d, key, INI_INVALID_KEY);
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if (str==INI_INVALID_KEY) return notfound ;
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/*-------------------------------------------------------------------------*/
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@brief Get the string associated to a key, convert to a boolean
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@param d Dictionary to search
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@param key Key string to look for
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@param notfound Value to return in case of error
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This function queries a dictionary for a key. A key as read from an
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ini file is given as "section:key". If the key cannot be found,
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the notfound value is returned.
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A true boolean is found if one of the following is matched:
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- A string starting with 'y'
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- A string starting with 'Y'
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- A string starting with 't'
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- A string starting with 'T'
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- A string starting with '1'
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A false boolean is found if one of the following is matched:
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- A string starting with 'n'
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- A string starting with 'N'
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- A string starting with 'f'
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- A string starting with 'F'
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- A string starting with '0'
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The notfound value returned if no boolean is identified, does not
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necessarily have to be 0 or 1.
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/*--------------------------------------------------------------------------*/
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int iniparser_getboolean(dictionary * d, const char * key, int notfound)
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c = iniparser_getstring(d, key, INI_INVALID_KEY);
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if (c==INI_INVALID_KEY) return notfound ;
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if (c[0]=='y' || c[0]=='Y' || c[0]=='1' || c[0]=='t' || c[0]=='T') {
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} else if (c[0]=='n' || c[0]=='N' || c[0]=='0' || c[0]=='f' || c[0]=='F') {
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/*-------------------------------------------------------------------------*/
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@brief Finds out if a given entry exists in a dictionary
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@param ini Dictionary to search
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@param entry Name of the entry to look for
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@return integer 1 if entry exists, 0 otherwise
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Finds out if a given entry exists in the dictionary. Since sections
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are stored as keys with NULL associated values, this is the only way
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of querying for the presence of sections in a dictionary.
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/*--------------------------------------------------------------------------*/
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int iniparser_find_entry(
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if (iniparser_getstring(ini, entry, INI_INVALID_KEY)!=INI_INVALID_KEY) {
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/*-------------------------------------------------------------------------*/
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@brief Set an entry in a dictionary.
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@param ini Dictionary to modify.
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@param entry Entry to modify (entry name)
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@param val New value to associate to the entry.
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@return int 0 if Ok, -1 otherwise.
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If the given entry can be found in the dictionary, it is modified to
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contain the provided value. If it cannot be found the entry is created.
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It is Ok to set val to NULL.
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/*--------------------------------------------------------------------------*/
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int iniparser_setstr(dictionary * ini, const char * entry, const char * val)
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dictionary_set(ini, strlwc(entry), val);
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/*-------------------------------------------------------------------------*/
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@brief Delete an entry in a dictionary
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@param ini Dictionary to modify
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@param entry Entry to delete (entry name)
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If the given entry can be found, it is deleted from the dictionary.
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/*--------------------------------------------------------------------------*/
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void iniparser_unset(dictionary * ini, const char * entry)
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dictionary_unset(ini, strlwc(entry));
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/*-------------------------------------------------------------------------*/
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@brief Parse an ini file and return an allocated dictionary object
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@param ininame Name of the ini file to read.
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@return Pointer to newly allocated dictionary
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This is the parser for ini files. This function is called, providing
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the name of the file to be read. It returns a dictionary object that
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should not be accessed directly, but through accessor functions
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The returned dictionary must be freed using iniparser_freedict().
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/*--------------------------------------------------------------------------*/
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dictionary * iniparser_load(const char * ininame)
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char lin[ASCIILINESZ+1];
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char sec[ASCIILINESZ+1];
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char key[ASCIILINESZ+1];
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char val[ASCIILINESZ+1];
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if ((ini=fopen(ininame, "rb"))==NULL) {
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* Initialize a new dictionary entry
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d = dictionary_new(0);
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while (fgets(lin, ASCIILINESZ, ini)!=NULL) {
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where = strskp(lin); /* Skip leading spaces */
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if (*where==';' || *where=='#' || *where==0)
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continue ; /* Comment lines */
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if (sscanf(where, "[%[^]]", sec)==1) {
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/* Valid section name */
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strcpy(sec, strlwc(sec));
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iniparser_add_entry(d, sec, NULL, NULL);
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} else if (sscanf (where, "%[^=] = \"%[^\"]\"", key, val) == 2
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|| sscanf (where, "%[^=] = '%[^\']'", key, val) == 2
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|| sscanf (where, "%[^=] = %[^;#]", key, val) == 2) {
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strcpy(key, strlwc(strcrop(key)));
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* sscanf cannot handle "" or '' as empty value,
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if (!strcmp(val, "\"\"") || !strcmp(val, "''")) {
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strcpy(val, strcrop(val));
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iniparser_add_entry(d, sec, key, val);
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/*-------------------------------------------------------------------------*/
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@brief Free all memory associated to an ini dictionary
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@param d Dictionary to free
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Free all memory associated to an ini dictionary.
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It is mandatory to call this function before the dictionary object
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gets out of the current context.
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/*--------------------------------------------------------------------------*/
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void iniparser_freedict(dictionary * d)
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/* vim: set ts=4 et sw=4 tw=75 */
added
removed
src/stelutils/iniparser/iniparser.c
