static char *fgetkeys(char *str, int str_size, const char *key, FILE *fd)
{
char *sp, *ep, *s;
int len;
char buf[256];
assert(fd);
assert(key);
len = strlen(key);
do {
if (fgets(buf, 256, fd) == NULL) return NULL;
sp = skipleading(buf);
//if (*sp == ';' || *sp == '#') break;
ep = strchr(sp, '=');
} while (ep == NULL ||
((int)(skiptrailing(ep, sp) - sp) != len ||
strncasecmp(sp, key, len) != 0));
assert(ep);
assert(*ep == '=');
sp = skipleading(ep + 1);
// Array
if (*sp == '{') {
s = str;
sp = skipleading(sp + 1);
do {
ep = strchr(sp, '}');
if (ep) {
ep = skiptrailing(ep, sp);
len = min(str_size, ep - sp);
strncpy(s, sp, len);
s += len;
break;
} else {
ep = skiptrailing(strchr(sp, '\0'), sp);
if (ep > sp) {
len = min(str_size, ep - sp);
strncpy(s, sp, len);
s += len;
str_size -= len;
}
}
if (fgets(buf, 256, fd) == NULL) break;
sp = skipleading(buf);
} while (1);
*s = '\0';
} else {
ep = striptrailing(sp);
if (ep > sp)
strncpy(str, sp, str_size);
}
return str;
}
static TCHAR *striptrailing(TCHAR *str)
{
TCHAR *ptr = skiptrailing(_tcschr(str, '\0'), str);
assert(ptr != NULL);
*ptr = '\0';
return str;
}
static char *striptrailing(char *str)
{
char *ptr = skiptrailing(_tcschr(str, '\0'), str);
assert(ptr != NULL);
*ptr='\0';
return str;
}
// ======================== Implementation =====================================
bool iniReadString(const char *ASection, const char *AKey, const char *AFileName, char *AOutput, uint32_t AMaxLen) {
FRESULT rslt;
// Open file
rslt = f_open(&SD.File, AFileName, FA_READ+FA_OPEN_EXISTING);
if (rslt != FR_OK) {
Uart.Printf(AFileName);
if (rslt == FR_NO_FILE) Uart.Printf(": file not found\r");
else Uart.Printf(": openFile error: %u", rslt);
return false;
}
// Check if zero file
if (SD.File.fsize == 0) {
f_close(&SD.File);
Uart.Printf("Empty file\r");
return false;
}
// Move through file one line at a time until a section is matched or EOF.
char *StartP, *EndP;
uint32_t len = strlen(ASection);
do {
if (!f_gets(IBuf, INI_BUF_SIZE, &SD.File)) {
f_close(&SD.File);
return false;
}
StartP = skipleading(IBuf);
EndP = strchr(StartP, ']');
} while ((*StartP != '[') or (EndP == NULL) or ((uint32_t)(EndP-StartP-1) != len or strnicmp(StartP+1, ASection, len) != 0));
// Section found, find the key
len = strlen(AKey);
do {
if (!f_gets(IBuf, INI_BUF_SIZE, &SD.File) or *(StartP = skipleading(IBuf)) == '[') {
f_close(&SD.File);
return false;
}
StartP = skipleading(IBuf);
EndP = strchr(StartP, '='); /* Parse out the equal sign */
} while ((*StartP == ';') or (*StartP == '#') or (EndP == NULL) or ((uint32_t)(skiptrailing(EndP, StartP)-StartP) != len or strnicmp(StartP, AKey, len) != 0));
// Copy up to ALength chars to AOutput
StartP = skipleading(EndP + 1);
// Remove a trailing comment
uint8_t isstring = 0;
for (EndP = StartP; (*EndP != '\0') and (((*EndP != ';') and (*EndP != '#')) or isstring) and ((uint32_t)(EndP - StartP) < AMaxLen); EndP++) {
if (*EndP == '"') {
if (*(EndP + 1) == '"') EndP++; // skip "" (both quotes)
else isstring = !isstring; // single quote, toggle isstring
}
else if (*EndP == '\\' && *(EndP + 1) == '"') EndP++; // skip \" (both quotes)
} // for
*EndP = '\0'; // Terminate at a comment
striptrailing(StartP);
strcpy(AOutput, StartP);
f_close(&SD.File);
return &AOutput[EndP-StartP-2]; // Pointer to last '\0'
}
static char *striptrailing(char *str)
{
char *ptr = skiptrailing(strchr(str, '\0'), str);
assert(ptr);
*ptr = '\0';
return ptr;
}
/** ini_puts()
* \param Section the name of the section to write the string in
* \param Key the name of the entry to write, or NULL to erase all keys in the section
* \param Value a pointer to the buffer the string, or NULL to erase the key
* \param Filename the name and full path of the .ini file to write to
*
* \return 1 if successful, otherwise 0
*/
int ini_puts(const TCHAR *Section, const TCHAR *Key, const TCHAR *Value, const TCHAR *Filename)
{
INI_FILETYPE rfp;
INI_FILETYPE wfp;
INI_FILEPOS mark;
TCHAR *sp, *ep;
TCHAR LocalBuffer[INI_BUFFERSIZE];
int len, match, flag, cachelen;
assert(Filename != NULL);
if (!ini_openread(Filename, &rfp)) {
/* If the .ini file doesn't exist, make a new file */
if (Key != NULL && Value != NULL) {
if (!ini_openwrite(Filename, &wfp))
return 0;
writesection(LocalBuffer, Section, &wfp);
writekey(LocalBuffer, Key, Value, &wfp);
(void)ini_close(&wfp);
} /* if */
return 1;
} /* if */
/* If parameters Key and Value are valid (so this is not an "erase" request)
* and the setting already exists and it already has the correct value, do
* nothing. This early bail-out avoids rewriting the INI file for no reason.
*/
if (Key != NULL && Value != NULL) {
(void)ini_tell(&rfp, &mark);
match = getkeystring(&rfp, Section, Key, -1, -1, LocalBuffer, sizearray(LocalBuffer));
if (match && _tcscmp(LocalBuffer,Value) == 0) {
(void)ini_close(&rfp);
return 1;
} /* if */
/* key not found, or different value -> proceed (but rewind the input file first) */
(void)ini_seek(&rfp, &mark);
} /* if */
/* Get a temporary file name to copy to. Use the existing name, but with
* the last character set to a '~'.
*/
ini_tempname(LocalBuffer, Filename, INI_BUFFERSIZE);
if (!ini_openwrite(LocalBuffer, &wfp)) {
(void)ini_close(&rfp);
return 0;
} /* if */
(void)ini_tell(&rfp, &mark);
cachelen = 0;
/* Move through the file one line at a time until a section is
* matched or until EOF. Copy to temp file as it is read.
*/
len = (Section != NULL) ? _tcslen(Section) : 0;
if (len > 0) {
do {
if (!ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp)) {
/* Failed to find section, so add one to the end */
flag = cache_flush(LocalBuffer, &cachelen, &rfp, &wfp, &mark);
if (Key!=NULL && Value!=NULL) {
if (!flag)
(void)ini_write(INI_LINETERM, &wfp); /* force a new line behind the last line of the INI file */
writesection(LocalBuffer, Section, &wfp);
writekey(LocalBuffer, Key, Value, &wfp);
} /* if */
return close_rename(&rfp, &wfp, Filename, LocalBuffer); /* clean up and rename */
} /* if */
/* Copy the line from source to dest, but not if this is the section that
* we are looking for and this section must be removed
*/
sp = skipleading(LocalBuffer);
ep = _tcschr(sp, ']');
match = (*sp == '[' && ep != NULL && (int)(ep-sp-1) == len && _tcsnicmp(sp + 1,Section,len) == 0);
if (!match || Key != NULL) {
if (!cache_accum(LocalBuffer, &cachelen, INI_BUFFERSIZE)) {
cache_flush(LocalBuffer, &cachelen, &rfp, &wfp, &mark);
(void)ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp);
cache_accum(LocalBuffer, &cachelen, INI_BUFFERSIZE);
} /* if */
} /* if */
} while (!match);
} /* if */
cache_flush(LocalBuffer, &cachelen, &rfp, &wfp, &mark);
/* when deleting a section, the section head that was just found has not been
* copied to the output file, but because this line was not "accumulated" in
* the cache, the position in the input file was reset to the point just
* before the section; this must now be skipped (again)
*/
if (Key == NULL) {
(void)ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp);
(void)ini_tell(&rfp, &mark);
} /* if */
/* Now that the section has been found, find the entry. Stop searching
* upon leaving the section's area. Copy the file as it is read
* and create an entry if one is not found.
*/
len = (Key!=NULL) ? _tcslen(Key) : 0;
for( ;; ) {
if (!ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp)) {
/* EOF without an entry so make one */
flag = cache_flush(LocalBuffer, &cachelen, &rfp, &wfp, &mark);
if (Key!=NULL && Value!=NULL) {
if (!flag)
(void)ini_write(INI_LINETERM, &wfp); /* force a new line behind the last line of the INI file */
writekey(LocalBuffer, Key, Value, &wfp);
} /* if */
return close_rename(&rfp, &wfp, Filename, LocalBuffer); /* clean up and rename */
} /* if */
sp = skipleading(LocalBuffer);
ep = _tcschr(sp, '='); /* Parse out the equal sign */
if (ep == NULL)
ep = _tcschr(sp, ':');
match = (ep != NULL && (int)(skiptrailing(ep,sp)-sp) == len && _tcsnicmp(sp,Key,len) == 0);
if ((Key != NULL && match) || *sp == '[')
break; /* found the key, or found a new section */
/* copy other keys in the section */
if (Key == NULL) {
(void)ini_tell(&rfp, &mark); /* we are deleting the entire section, so update the read position */
} else {
if (!cache_accum(LocalBuffer, &cachelen, INI_BUFFERSIZE)) {
cache_flush(LocalBuffer, &cachelen, &rfp, &wfp, &mark);
(void)ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp);
cache_accum(LocalBuffer, &cachelen, INI_BUFFERSIZE);
} /* if */
} /* if */
} /* for */
/* the key was found, or we just dropped on the next section (meaning that it
* wasn't found); in both cases we need to write the key, but in the latter
* case, we also need to write the line starting the new section after writing
* the key
*/
flag = (*sp == '[');
cache_flush(LocalBuffer, &cachelen, &rfp, &wfp, &mark);
if (Key != NULL && Value != NULL)
writekey(LocalBuffer, Key, Value, &wfp);
/* cache_flush() reset the "read pointer" to the start of the line with the
* previous key or the new section; read it again (because writekey() destroyed
* the buffer)
*/
(void)ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp);
if (flag) {
/* the new section heading needs to be copied to the output file */
cache_accum(LocalBuffer, &cachelen, INI_BUFFERSIZE);
} else {
/* forget the old key line */
(void)ini_tell(&rfp, &mark);
} /* if */
/* Copy the rest of the INI file */
while (ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp)) {
if (!cache_accum(LocalBuffer, &cachelen, INI_BUFFERSIZE)) {
cache_flush(LocalBuffer, &cachelen, &rfp, &wfp, &mark);
(void)ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp);
cache_accum(LocalBuffer, &cachelen, INI_BUFFERSIZE);
} /* if */
} /* while */
cache_flush(LocalBuffer, &cachelen, &rfp, &wfp, &mark);
return close_rename(&rfp, &wfp, Filename, LocalBuffer); /* clean up and rename */
}
static int getkeystring(INI_FILETYPE *fp, const TCHAR *Section, const TCHAR *Key,
int idxSection, int idxKey, TCHAR *Buffer, int BufferSize)
{
TCHAR *sp, *ep;
int len, idx;
enum quote_option quotes;
TCHAR LocalBuffer[INI_BUFFERSIZE];
assert(fp != NULL);
/* Move through file 1 line at a time until a section is matched or EOF. If
* parameter Section is NULL, only look at keys above the first section. If
* idxSection is postive, copy the relevant section name.
*/
len = (Section != NULL) ? _tcslen(Section) : 0;
if (len > 0 || idxSection >= 0) {
idx = -1;
do {
if (!ini_read(LocalBuffer, INI_BUFFERSIZE, fp))
return 0;
sp = skipleading(LocalBuffer);
ep = _tcschr(sp, ']');
} while (*sp != '[' || ep == NULL || (((int)(ep-sp-1) != len || _tcsnicmp(sp+1,Section,len) != 0) && ++idx != idxSection));
if (idxSection >= 0) {
if (idx == idxSection) {
assert(ep != NULL);
assert(*ep == ']');
*ep = '\0';
save_strncpy(Buffer, sp + 1, BufferSize, QUOTE_NONE);
return 1;
} /* if */
return 0; /* no more section found */
} /* if */
} /* if */
/* Now that the section has been found, find the entry.
* Stop searching upon leaving the section's area.
*/
assert(Key != NULL || idxKey >= 0);
len = (Key != NULL) ? (int)_tcslen(Key) : 0;
idx = -1;
do {
if (!ini_read(LocalBuffer,INI_BUFFERSIZE,fp) || *(sp = skipleading(LocalBuffer)) == '[')
return 0;
sp = skipleading(LocalBuffer);
ep = _tcschr(sp, '='); /* Parse out the equal sign */
if (ep == NULL)
ep = _tcschr(sp, ':');
} while (*sp == ';' || *sp == '#' || ep == NULL || (((int)(skiptrailing(ep,sp)-sp) != len || _tcsnicmp(sp,Key,len) != 0) && ++idx != idxKey));
if (idxKey >= 0) {
if (idx == idxKey) {
assert(ep != NULL);
assert(*ep == '=' || *ep == ':');
*ep = '\0';
striptrailing(sp);
save_strncpy(Buffer, sp, BufferSize, QUOTE_NONE);
return 1;
} /* if */
return 0; /* no more key found (in this section) */
} /* if */
/* Copy up to BufferSize chars to buffer */
assert(ep != NULL);
assert(*ep == '=' || *ep == ':');
sp = skipleading(ep + 1);
sp = cleanstring(sp, "es); /* Remove a trailing comment */
save_strncpy(Buffer, sp, BufferSize, quotes);
return 1;
}
static int getkeystring(INI_FILETYPE *fp, const TCHAR *Section, const TCHAR *Key,
int idxSection, int idxKey, TCHAR *Buffer, int BufferSize)
{
TCHAR *sp, *ep;
int len, idx, isstring;
enum quote_option quotes;
TCHAR LocalBuffer[INI_BUFFERSIZE];
assert(fp != NULL);
/* Move through file 1 line at a time until a section is matched or EOF. If
* parameter Section is NULL, only look at keys above the first section. If
* idxSection is postive, copy the relevant section name.
*/
len = (Section != NULL) ? _tcslen(Section) : 0;
if (len > 0 || idxSection >= 0) {
idx = -1;
do {
if (!ini_read(LocalBuffer, INI_BUFFERSIZE, fp))
return 0;
sp = skipleading(LocalBuffer);
ep = _tcschr(sp, ']');
} while (*sp != '[' || ep == NULL || (((int)(ep-sp-1) != len || _tcsnicmp(sp+1,Section,len) != 0) && ++idx != idxSection));
if (idxSection >= 0) {
if (idx == idxSection) {
assert(ep != NULL);
assert(*ep == ']');
*ep = '\0';
save_strncpy(Buffer, sp + 1, BufferSize, QUOTE_NONE);
return 1;
} /* if */
return 0; /* no more section found */
} /* if */
} /* if */
/* Now that the section has been found, find the entry.
* Stop searching upon leaving the section's area.
*/
assert(Key != NULL || idxKey >= 0);
len = (Key != NULL) ? (int)_tcslen(Key) : 0;
idx = -1;
do {
if (!ini_read(LocalBuffer,INI_BUFFERSIZE,fp) || *(sp = skipleading(LocalBuffer)) == '[')
return 0;
sp = skipleading(LocalBuffer);
ep = _tcschr(sp, '='); /* Parse out the equal sign */
if (ep == NULL)
ep = _tcschr(sp, ':');
} while (*sp == ';' || *sp == '#' || ep == NULL || (((int)(skiptrailing(ep,sp)-sp) != len || _tcsnicmp(sp,Key,len) != 0) && ++idx != idxKey));
if (idxKey >= 0) {
if (idx == idxKey) {
assert(ep != NULL);
assert(*ep == '=' || *ep == ':');
*ep = '\0';
striptrailing(sp);
save_strncpy(Buffer, sp, BufferSize, QUOTE_NONE);
return 1;
} /* if */
return 0; /* no more key found (in this section) */
} /* if */
/* Copy up to BufferSize chars to buffer */
assert(ep != NULL);
assert(*ep == '=' || *ep == ':');
sp = skipleading(ep + 1);
/* Remove a trailing comment */
isstring = 0;
for (ep = sp; *ep != '\0' && ((*ep != ';' && *ep != '#') || isstring); ep++) {
if (*ep == '"') {
if (*(ep + 1) == '"')
ep++; /* skip "" (both quotes) */
else
isstring = !isstring; /* single quote, toggle isstring */
} else if (*ep == '\\' && *(ep + 1) == '"') {
ep++; /* skip \" (both quotes */
} /* if */
} /* for */
assert(ep != NULL && (*ep == '\0' || *ep == ';' || *ep == '#'));
*ep = '\0'; /* terminate at a comment */
striptrailing(sp);
/* Remove double quotes surrounding a value */
quotes = QUOTE_NONE;
if (*sp == '"' && (ep = _tcschr(sp, '\0')) != NULL && *(ep - 1) == '"') {
sp++;
*--ep = '\0';
quotes = QUOTE_DEQUOTE; /* this is a string, so remove escaped characters */
} /* if */
save_strncpy(Buffer, sp, BufferSize, quotes);
return 1;
}
static char* striptrailing(char *S) {
char *ptr = skiptrailing(strchr(S, '\0'), S);
*ptr='\0';
return (char*)S;
}
/** ini_puts()
* \param Section the name of the section to write the string in
* \param Key the name of the entry to write, or NULL to erase all keys in the section
* \param Value a pointer to the buffer the string, or NULL to erase the key
* \param Filename the name and full path of the .ini file to write to
*
* \return 1 if successful, otherwise 0
*/
int ini_puts(const TCHAR *Section, const TCHAR *Key, const TCHAR *Value, const TCHAR *Filename)
{
INI_FILETYPE rfp;
INI_FILETYPE wfp;
TCHAR *sp, *ep;
TCHAR LocalBuffer[INI_BUFFERSIZE];
int len, match, count;
assert(Filename!=NULL);
if (!ini_openread(Filename, &rfp)) {
/* If the .ini file doesn't exist, make a new file */
if (Key!=NULL && Value!=NULL) {
if (!ini_openwrite(Filename, &wfp))
return 0;
writesection(LocalBuffer, Section, &wfp);
writekey(LocalBuffer, Key, Value, &wfp);
ini_close(&wfp);
} /* if */
return 1;
} /* if */
/* If parameters Key and Value are valid (so this is not an "erase" request)
* and the setting already exists and it already has the correct value, do
* nothing. This early bail-out avoids rewriting the INI file for no reason.
*/
if (Key!=NULL && Value!=NULL) {
match = getkeystring(&rfp, Section, Key, -1, -1, LocalBuffer, sizearray(LocalBuffer));
if (match && _tcscmp(LocalBuffer,Value)==0) {
ini_close(&rfp);
return 1;
} /* if */
/* key not found, or different value -> proceed (but rewind the input file first) */
ini_rewind(&rfp);
} /* if */
/* Get a temporary file name to copy to. Use the existing name, but with
* the last character set to a '~'.
*/
ini_tempname(LocalBuffer, Filename, INI_BUFFERSIZE);
if (!ini_openwrite(LocalBuffer, &wfp)) {
ini_close(&rfp);
return 0;
} /* if */
/* Move through the file one line at a time until a section is
* matched or until EOF. Copy to temp file as it is read.
*/
count = 0;
len = (Section != NULL) ? _tcslen(Section) : 0;
if (len > 0) {
do {
if (!ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp)) {
/* Failed to find section, so add one to the end */
if (Key!=NULL && Value!=NULL) {
ini_write(INI_LINETERM, &wfp); /* force a new line (there may not have been one) behind the last line of the INI file */
writesection(LocalBuffer, Section, &wfp);
writekey(LocalBuffer, Key, Value, &wfp);
} /* if */
/* Clean up and rename */
ini_close(&rfp);
ini_close(&wfp);
ini_remove(Filename);
ini_tempname(LocalBuffer, Filename, INI_BUFFERSIZE);
ini_rename(LocalBuffer, Filename);
return 1;
} /* if */
/* Copy the line from source to dest, but not if this is the section that
* we are looking for and this section must be removed
*/
sp = skipleading(LocalBuffer);
ep = _tcschr(sp, ']');
match = (*sp == '[' && ep != NULL && (int)(ep-sp-1) == len && _tcsnicmp(sp + 1,Section,len) == 0);
if (!match || Key!=NULL) {
/* Remove blank lines, but insert a blank line (possibly one that was
* removed on the previous iteration) before a new section. This creates
* "neat" INI files.
*/
if (_tcslen(sp) > 0) {
if (*sp == '[' && count > 0)
ini_write(INI_LINETERM, &wfp);
ini_write(sp, &wfp);
count++;
} /* if */
} /* if */
} while (!match);
} /* if */
/* Now that the section has been found, find the entry. Stop searching
* upon leaving the section's area. Copy the file as it is read
* and create an entry if one is not found.
*/
len = (Key!=NULL) ? _tcslen(Key) : 0;
for( ;; ) {
if (!ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp)) {
/* EOF without an entry so make one */
if (Key!=NULL && Value!=NULL) {
ini_write(INI_LINETERM, &wfp); /* force a new line (there may not have been one) behind the last line of the INI file */
writekey(LocalBuffer, Key, Value, &wfp);
} /* if */
/* Clean up and rename */
ini_close(&rfp);
ini_close(&wfp);
ini_remove(Filename);
ini_tempname(LocalBuffer, Filename, INI_BUFFERSIZE);
ini_rename(LocalBuffer, Filename);
return 1;
} /* if */
sp = skipleading(LocalBuffer);
ep = _tcschr(sp, '='); /* Parse out the equal sign */
if (ep == NULL)
ep = _tcschr(sp, ':');
match = (ep != NULL && (int)(skiptrailing(ep,sp)-sp) == len && _tcsnicmp(sp,Key,len) == 0);
if ((Key!=NULL && match) || *sp == '[')
break; /* found the key, or found a new section */
/* in the section that we re-write, do not copy empty lines */
if (Key!=NULL && _tcslen(sp) > 0)
ini_write(sp, &wfp);
} /* for */
if (*sp == '[') {
/* found start of new section, the key was not in the specified
* section, so we add it just before the new section
*/
if (Key!=NULL && Value!=NULL) {
/* We cannot use "writekey()" here, because we need to preserve the
* contents of LocalBuffer.
*/
ini_write(Key, &wfp);
ini_write("=", &wfp);
write_quoted(Value, &wfp);
ini_write(INI_LINETERM INI_LINETERM, &wfp); /* put a blank line between the current and the next section */
} /* if */
/* write the new section header that we read previously */
ini_write(sp, &wfp);
} else {
/* We found the key; ignore the line just read (with the key and
* the current value) and write the key with the new value.
*/
if (Key!=NULL && Value!=NULL)
writekey(LocalBuffer, Key, Value, &wfp);
} /* if */
/* Copy the rest of the INI file (removing empty lines, except before a section) */
while (ini_read(LocalBuffer, INI_BUFFERSIZE, &rfp)) {
sp = skipleading(LocalBuffer);
if (_tcslen(sp) > 0) {
if (*sp == '[')
ini_write(INI_LINETERM, &wfp);
ini_write(sp, &wfp);
} /* if */
} /* while */
/* Clean up and rename */
ini_close(&rfp);
ini_close(&wfp);
ini_remove(Filename);
ini_tempname(LocalBuffer, Filename, INI_BUFFERSIZE);
ini_rename(LocalBuffer, Filename);
return 1;
}
