2 * This file is part of the libsigrok project.
4 * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
20 /* Needed for POSIX.1-2008 locale functions */
22 #define _XOPEN_SOURCE 700
27 #if defined(__FreeBSD__) || defined(__APPLE__)
30 #if defined(__FreeBSD__)
31 #include <sys/param.h>
38 #include <libsigrok/libsigrok.h>
39 #include "libsigrok-internal.h"
42 #define LOG_PREFIX "strutil"
48 * Helper functions for handling or converting libsigrok-related strings.
52 * @defgroup grp_strutil String utilities
54 * Helper functions for handling or converting libsigrok-related strings.
60 * Convert a string representation of a numeric value (base 10) to a long integer. The
61 * conversion is strict and will fail if the complete string does not represent
62 * a valid long integer. The function sets errno according to the details of the
65 * @param str The string representation to convert.
66 * @param ret Pointer to long where the result of the conversion will be stored.
68 * @retval SR_OK Conversion successful.
69 * @retval SR_ERR Failure.
73 SR_PRIV int sr_atol(const char *str, long *ret)
79 tmp = strtol(str, &endptr, 10);
81 while (endptr && isspace(*endptr))
84 if (!endptr || *endptr || errno) {
95 * Convert a text to a number including support for non-decimal bases.
96 * Also optionally returns the position after the number, where callers
97 * can either error out, or support application specific suffixes.
99 * @param[in] str The input text to convert.
100 * @param[out] ret The conversion result.
101 * @param[out] end The position after the number.
102 * @param[in] base The number format's base, can be 0.
104 * @retval SR_OK Conversion successful.
105 * @retval SR_ERR Conversion failed.
109 * This routine is more general than @ref sr_atol(), which strictly
110 * expects the input text to contain just a decimal number, and nothing
111 * else in addition. The @ref sr_atol_base() routine accepts trailing
112 * text after the number, and supports non-decimal numbers (bin, hex),
113 * including automatic detection from prefix text.
115 SR_PRIV int sr_atol_base(const char *str, long *ret, char **end, int base)
120 /* Add "0b" prefix support which strtol(3) may be missing. */
121 while (str && isspace(*str))
123 if (!base && strncmp(str, "0b", strlen("0b")) == 0) {
128 /* Run the number conversion. Quick bail out if that fails. */
131 num = strtol(str, &endptr, base);
132 if (!endptr || errno) {
139 /* Advance to optional non-space trailing suffix. */
140 while (endptr && isspace(*endptr))
149 * Convert a string representation of a numeric value (base 10) to an integer. The
150 * conversion is strict and will fail if the complete string does not represent
151 * a valid integer. The function sets errno according to the details of the
154 * @param str The string representation to convert.
155 * @param ret Pointer to int where the result of the conversion will be stored.
157 * @retval SR_OK Conversion successful.
158 * @retval SR_ERR Failure.
162 SR_PRIV int sr_atoi(const char *str, int *ret)
166 if (sr_atol(str, &tmp) != SR_OK)
169 if ((int) tmp != tmp) {
179 * Convert a string representation of a numeric value to a double. The
180 * conversion is strict and will fail if the complete string does not represent
181 * a valid double. The function sets errno according to the details of the
184 * @param str The string representation to convert.
185 * @param ret Pointer to double where the result of the conversion will be stored.
187 * @retval SR_OK Conversion successful.
188 * @retval SR_ERR Failure.
192 SR_PRIV int sr_atod(const char *str, double *ret)
198 tmp = strtof(str, &endptr);
200 while (endptr && isspace(*endptr))
203 if (!endptr || *endptr || errno) {
214 * Convert a string representation of a numeric value to a float. The
215 * conversion is strict and will fail if the complete string does not represent
216 * a valid float. The function sets errno according to the details of the
219 * @param str The string representation to convert.
220 * @param ret Pointer to float where the result of the conversion will be stored.
222 * @retval SR_OK Conversion successful.
223 * @retval SR_ERR Failure.
227 SR_PRIV int sr_atof(const char *str, float *ret)
231 if (sr_atod(str, &tmp) != SR_OK)
234 if ((float) tmp != tmp) {
244 * Convert a string representation of a numeric value to a double. The
245 * conversion is strict and will fail if the complete string does not represent
246 * a valid double. The function sets errno according to the details of the
247 * failure. This version ignores the locale.
249 * @param str The string representation to convert.
250 * @param ret Pointer to double where the result of the conversion will be stored.
252 * @retval SR_OK Conversion successful.
253 * @retval SR_ERR Failure.
257 SR_PRIV int sr_atod_ascii(const char *str, double *ret)
263 tmp = g_ascii_strtod(str, &endptr);
265 if (!endptr || *endptr || errno) {
276 * Convert a string representation of a numeric value to a float. The
277 * conversion is strict and will fail if the complete string does not represent
278 * a valid float. The function sets errno according to the details of the
279 * failure. This version ignores the locale.
281 * @param str The string representation to convert.
282 * @param ret Pointer to float where the result of the conversion will be stored.
284 * @retval SR_OK Conversion successful.
285 * @retval SR_ERR Failure.
289 SR_PRIV int sr_atof_ascii(const char *str, float *ret)
295 tmp = g_ascii_strtod(str, &endptr);
297 if (!endptr || *endptr || errno) {
303 /* FIXME This fails unexpectedly. Some other method to safel downcast
304 * needs to be found. Checking against FLT_MAX doesn't work as well. */
306 if ((float) tmp != tmp) {
308 sr_dbg("ERANGEEEE %e != %e", (float) tmp, tmp);
318 * Compose a string with a format string in the buffer pointed to by buf.
320 * It is up to the caller to ensure that the allocated buffer is large enough
321 * to hold the formatted result.
323 * A terminating NUL character is automatically appended after the content
326 * After the format parameter, the function expects at least as many additional
327 * arguments as needed for format.
329 * This version ignores the current locale and uses the locale "C" for Linux,
330 * FreeBSD, OSX and Android.
332 * @param buf Pointer to a buffer where the resulting C string is stored.
333 * @param format C string that contains a format string (see printf).
334 * @param ... A sequence of additional arguments, each containing a value to be
335 * used to replace a format specifier in the format string.
337 * @return On success, the number of characters that would have been written,
338 * not counting the terminating NUL character.
342 SR_API int sr_sprintf_ascii(char *buf, const char *format, ...)
347 va_start(args, format);
348 ret = sr_vsprintf_ascii(buf, format, args);
355 * Compose a string with a format string in the buffer pointed to by buf.
357 * It is up to the caller to ensure that the allocated buffer is large enough
358 * to hold the formatted result.
360 * Internally, the function retrieves arguments from the list identified by
361 * args as if va_arg was used on it, and thus the state of args is likely to
362 * be altered by the call.
364 * In any case, args should have been initialized by va_start at some point
365 * before the call, and it is expected to be released by va_end at some point
368 * This version ignores the current locale and uses the locale "C" for Linux,
369 * FreeBSD, OSX and Android.
371 * @param buf Pointer to a buffer where the resulting C string is stored.
372 * @param format C string that contains a format string (see printf).
373 * @param args A value identifying a variable arguments list initialized with
376 * @return On success, the number of characters that would have been written,
377 * not counting the terminating NUL character.
381 SR_API int sr_vsprintf_ascii(char *buf, const char *format, va_list args)
388 * TODO: This part compiles with mingw-w64 but doesn't run with Win7.
389 * Doesn't start because of "Procedure entry point _create_locale
390 * not found in msvcrt.dll".
391 * mingw-w64 should link to msvcr100.dll not msvcrt.dll!
392 * See: https://msdn.microsoft.com/en-us/en-en/library/1kt27hek.aspx
396 locale = _create_locale(LC_NUMERIC, "C");
397 ret = _vsprintf_l(buf, format, locale, args);
398 _free_locale(locale);
401 /* vsprintf() uses the current locale, may not work correctly for floats. */
402 ret = vsprintf(buf, format, args);
405 #elif defined(__APPLE__)
408 * https://developer.apple.com/legacy/library/documentation/Darwin/Reference/ManPages/man3/printf_l.3.html
409 * https://developer.apple.com/legacy/library/documentation/Darwin/Reference/ManPages/man3/xlocale.3.html
414 locale = newlocale(LC_NUMERIC_MASK, "C", NULL);
415 ret = vsprintf_l(buf, locale, format, args);
419 #elif defined(__FreeBSD__) && __FreeBSD_version >= 901000
422 * https://www.freebsd.org/cgi/man.cgi?query=printf_l&apropos=0&sektion=3&manpath=FreeBSD+9.1-RELEASE
423 * https://www.freebsd.org/cgi/man.cgi?query=xlocale&apropos=0&sektion=3&manpath=FreeBSD+9.1-RELEASE
428 locale = newlocale(LC_NUMERIC_MASK, "C", NULL);
429 ret = vsprintf_l(buf, locale, format, args);
433 #elif defined(__ANDROID__)
435 * The Bionic libc only has two locales ("C" aka "POSIX" and "C.UTF-8"
436 * aka "en_US.UTF-8"). The decimal point is hard coded as "."
437 * See: https://android.googlesource.com/platform/bionic/+/master/libc/bionic/locale.cpp
441 ret = vsprintf(buf, format, args);
444 #elif defined(__linux__)
446 locale_t old_locale, temp_locale;
448 /* Switch to C locale for proper float/double conversion. */
449 temp_locale = newlocale(LC_NUMERIC, "C", NULL);
450 old_locale = uselocale(temp_locale);
452 ret = vsprintf(buf, format, args);
454 /* Switch back to original locale. */
455 uselocale(old_locale);
456 freelocale(temp_locale);
459 #elif defined(__unix__) || defined(__unix)
461 * This is a fallback for all other BSDs, *nix and FreeBSD <= 9.0, by
462 * using the current locale for snprintf(). This may not work correctly
467 ret = vsprintf(buf, format, args);
471 /* No implementation for unknown systems! */
477 * Composes a string with a format string (like printf) in the buffer pointed
478 * by buf (taking buf_size as the maximum buffer capacity to fill).
479 * If the resulting string would be longer than n - 1 characters, the remaining
480 * characters are discarded and not stored, but counted for the value returned
482 * A terminating NUL character is automatically appended after the content
484 * After the format parameter, the function expects at least as many additional
485 * arguments as needed for format.
487 * This version ignores the current locale and uses the locale "C" for Linux,
488 * FreeBSD, OSX and Android.
490 * @param buf Pointer to a buffer where the resulting C string is stored.
491 * @param buf_size Maximum number of bytes to be used in the buffer. The
492 * generated string has a length of at most buf_size - 1, leaving space
493 * for the additional terminating NUL character.
494 * @param format C string that contains a format string (see printf).
495 * @param ... A sequence of additional arguments, each containing a value to be
496 * used to replace a format specifier in the format string.
498 * @return On success, the number of characters that would have been written if
499 * buf_size had been sufficiently large, not counting the terminating
500 * NUL character. On failure, a negative number is returned.
501 * Notice that only when this returned value is non-negative and less
502 * than buf_size, the string has been completely written.
506 SR_API int sr_snprintf_ascii(char *buf, size_t buf_size,
507 const char *format, ...)
512 va_start(args, format);
513 ret = sr_vsnprintf_ascii(buf, buf_size, format, args);
520 * Composes a string with a format string (like printf) in the buffer pointed
521 * by buf (taking buf_size as the maximum buffer capacity to fill).
522 * If the resulting string would be longer than n - 1 characters, the remaining
523 * characters are discarded and not stored, but counted for the value returned
525 * A terminating NUL character is automatically appended after the content
527 * Internally, the function retrieves arguments from the list identified by
528 * args as if va_arg was used on it, and thus the state of args is likely to
529 * be altered by the call.
530 * In any case, arg should have been initialized by va_start at some point
531 * before the call, and it is expected to be released by va_end at some point
534 * This version ignores the current locale and uses the locale "C" for Linux,
535 * FreeBSD, OSX and Android.
537 * @param buf Pointer to a buffer where the resulting C string is stored.
538 * @param buf_size Maximum number of bytes to be used in the buffer. The
539 * generated string has a length of at most buf_size - 1, leaving space
540 * for the additional terminating NUL character.
541 * @param format C string that contains a format string (see printf).
542 * @param args A value identifying a variable arguments list initialized with
545 * @return On success, the number of characters that would have been written if
546 * buf_size had been sufficiently large, not counting the terminating
547 * NUL character. On failure, a negative number is returned.
548 * Notice that only when this returned value is non-negative and less
549 * than buf_size, the string has been completely written.
553 SR_API int sr_vsnprintf_ascii(char *buf, size_t buf_size,
554 const char *format, va_list args)
561 * TODO: This part compiles with mingw-w64 but doesn't run with Win7.
562 * Doesn't start because of "Procedure entry point _create_locale
563 * not found in msvcrt.dll".
564 * mingw-w64 should link to msvcr100.dll not msvcrt.dll!.
565 * See: https://msdn.microsoft.com/en-us/en-en/library/1kt27hek.aspx
569 locale = _create_locale(LC_NUMERIC, "C");
570 ret = _vsnprintf_l(buf, buf_size, format, locale, args);
571 _free_locale(locale);
574 /* vsprintf uses the current locale, may cause issues for floats. */
575 ret = vsnprintf(buf, buf_size, format, args);
578 #elif defined(__APPLE__)
581 * https://developer.apple.com/legacy/library/documentation/Darwin/Reference/ManPages/man3/printf_l.3.html
582 * https://developer.apple.com/legacy/library/documentation/Darwin/Reference/ManPages/man3/xlocale.3.html
587 locale = newlocale(LC_NUMERIC_MASK, "C", NULL);
588 ret = vsnprintf_l(buf, buf_size, locale, format, args);
592 #elif defined(__FreeBSD__) && __FreeBSD_version >= 901000
595 * https://www.freebsd.org/cgi/man.cgi?query=printf_l&apropos=0&sektion=3&manpath=FreeBSD+9.1-RELEASE
596 * https://www.freebsd.org/cgi/man.cgi?query=xlocale&apropos=0&sektion=3&manpath=FreeBSD+9.1-RELEASE
601 locale = newlocale(LC_NUMERIC_MASK, "C", NULL);
602 ret = vsnprintf_l(buf, buf_size, locale, format, args);
606 #elif defined(__ANDROID__)
608 * The Bionic libc only has two locales ("C" aka "POSIX" and "C.UTF-8"
609 * aka "en_US.UTF-8"). The decimal point is hard coded as ".".
610 * See: https://android.googlesource.com/platform/bionic/+/master/libc/bionic/locale.cpp
614 ret = vsnprintf(buf, buf_size, format, args);
617 #elif defined(__linux__)
619 locale_t old_locale, temp_locale;
621 /* Switch to C locale for proper float/double conversion. */
622 temp_locale = newlocale(LC_NUMERIC, "C", NULL);
623 old_locale = uselocale(temp_locale);
625 ret = vsnprintf(buf, buf_size, format, args);
627 /* Switch back to original locale. */
628 uselocale(old_locale);
629 freelocale(temp_locale);
632 #elif defined(__unix__) || defined(__unix)
634 * This is a fallback for all other BSDs, *nix and FreeBSD <= 9.0, by
635 * using the current locale for snprintf(). This may not work correctly
640 ret = vsnprintf(buf, buf_size, format, args);
644 /* No implementation for unknown systems! */
650 * Convert a sequence of bytes to its textual representation ("hex dump").
652 * Callers should free the allocated GString. See sr_hexdump_free().
654 * @param[in] data Pointer to the byte sequence to print.
655 * @param[in] len Number of bytes to print.
657 * @return NULL upon error, newly allocated GString pointer otherwise.
661 SR_PRIV GString *sr_hexdump_new(const uint8_t *data, const size_t len)
666 s = g_string_sized_new(3 * len);
667 for (i = 0; i < len; i++) {
669 g_string_append_c(s, ' ');
670 g_string_append_printf(s, "%02x", data[i]);
677 * Free a hex dump text that was created by sr_hexdump_new().
679 * @param[in] s Pointer to the GString to release.
683 SR_PRIV void sr_hexdump_free(GString *s)
686 g_string_free(s, TRUE);
690 * Convert a string representation of a numeric value to a sr_rational.
692 * The conversion is strict and will fail if the complete string does not
693 * represent a valid number. The function sets errno according to the details
694 * of the failure. This version ignores the locale.
696 * @param str The string representation to convert.
697 * @param ret Pointer to sr_rational where the result of the conversion will be stored.
699 * @retval SR_OK Conversion successful.
700 * @retval SR_ERR Failure.
704 SR_API int sr_parse_rational(const char *str, struct sr_rational *ret)
708 int64_t fractional = 0;
709 int64_t denominator = 1;
710 int32_t fractional_len = 0;
711 int32_t exponent = 0;
712 gboolean is_negative = FALSE;
713 gboolean no_integer, no_fractional;
715 while (isspace(*str))
719 integral = g_ascii_strtoll(str, &endptr, 10);
721 if (str == endptr && (str[0] == '-' || str[0] == '+') && str[1] == '.') {
724 } else if (str == endptr && str[0] == '.') {
732 if (integral < 0 || str[0] == '-')
736 if (*endptr == '.') {
737 gboolean is_exp, is_eos;
738 const char *start = endptr + 1;
739 fractional = g_ascii_strtoll(start, &endptr, 10);
740 is_exp = *endptr == 'E' || *endptr == 'e';
741 is_eos = *endptr == '\0';
742 if (endptr == start && (is_exp || is_eos)) {
748 no_fractional = endptr == start;
749 if (no_integer && no_fractional)
751 fractional_len = endptr - start;
755 if ((*endptr == 'E') || (*endptr == 'e')) {
756 exponent = g_ascii_strtoll(endptr + 1, &endptr, 10);
764 for (int i = 0; i < fractional_len; i++)
766 exponent -= fractional_len;
769 integral += fractional;
771 integral -= fractional;
773 while (exponent > 0) {
778 while (exponent < 0) {
784 ret->q = denominator;
790 * Convert a numeric value value to its "natural" string representation
793 * E.g. a value of 3000000, with units set to "W", would be converted
794 * to "3 MW", 20000 to "20 kW", 31500 would become "31.5 kW".
796 * @param x The value to convert.
797 * @param unit The unit to append to the string, or NULL if the string
800 * @return A newly allocated string representation of the samplerate value,
801 * or NULL upon errors. The caller is responsible to g_free() the
806 SR_API char *sr_si_string_u64(uint64_t x, const char *unit)
809 uint64_t quot, divisor[] = {
810 SR_HZ(1), SR_KHZ(1), SR_MHZ(1), SR_GHZ(1),
811 SR_GHZ(1000), SR_GHZ(1000 * 1000), SR_GHZ(1000 * 1000 * 1000),
813 const char *p, prefix[] = "\0kMGTPE";
814 char fmt[16], fract[20] = "", *f;
819 for (i = 0; (quot = x / divisor[i]) >= 1000; i++);
822 sprintf(fmt, ".%%0%d"PRIu64, i * 3);
823 f = fract + sprintf(fract, fmt, x % divisor[i]) - 1;
825 while (f >= fract && strchr("0.", *f))
831 return g_strdup_printf("%" PRIu64 "%s %.1s%s", quot, fract, p, unit);
835 * Convert a numeric samplerate value to its "natural" string representation.
837 * E.g. a value of 3000000 would be converted to "3 MHz", 20000 to "20 kHz",
838 * 31500 would become "31.5 kHz".
840 * @param samplerate The samplerate in Hz.
842 * @return A newly allocated string representation of the samplerate value,
843 * or NULL upon errors. The caller is responsible to g_free() the
848 SR_API char *sr_samplerate_string(uint64_t samplerate)
850 return sr_si_string_u64(samplerate, "Hz");
854 * Convert a numeric period value to the "natural" string representation
855 * of its period value.
857 * The period is specified as a rational number's numerator and denominator.
859 * E.g. a pair of (1, 5) would be converted to "200 ms", (10, 100) to "100 ms".
861 * @param v_p The period numerator.
862 * @param v_q The period denominator.
864 * @return A newly allocated string representation of the period value,
865 * or NULL upon errors. The caller is responsible to g_free() the
870 SR_API char *sr_period_string(uint64_t v_p, uint64_t v_q)
875 freq = 1 / ((double)v_p / v_q);
877 if (freq > SR_GHZ(1)) {
878 v = (double)v_p / v_q * 1000000000000.0;
879 prec = ((v - (uint64_t)v) < FLT_MIN) ? 0 : 3;
880 return g_strdup_printf("%.*f ps", prec, v);
881 } else if (freq > SR_MHZ(1)) {
882 v = (double)v_p / v_q * 1000000000.0;
883 prec = ((v - (uint64_t)v) < FLT_MIN) ? 0 : 3;
884 return g_strdup_printf("%.*f ns", prec, v);
885 } else if (freq > SR_KHZ(1)) {
886 v = (double)v_p / v_q * 1000000.0;
887 prec = ((v - (uint64_t)v) < FLT_MIN) ? 0 : 3;
888 return g_strdup_printf("%.*f us", prec, v);
889 } else if (freq > 1) {
890 v = (double)v_p / v_q * 1000.0;
891 prec = ((v - (uint64_t)v) < FLT_MIN) ? 0 : 3;
892 return g_strdup_printf("%.*f ms", prec, v);
894 v = (double)v_p / v_q;
895 prec = ((v - (uint64_t)v) < FLT_MIN) ? 0 : 3;
896 return g_strdup_printf("%.*f s", prec, v);
901 * Convert a numeric voltage value to the "natural" string representation
902 * of its voltage value. The voltage is specified as a rational number's
903 * numerator and denominator.
905 * E.g. a value of 300000 would be converted to "300mV", 2 to "2V".
907 * @param v_p The voltage numerator.
908 * @param v_q The voltage denominator.
910 * @return A newly allocated string representation of the voltage value,
911 * or NULL upon errors. The caller is responsible to g_free() the
916 SR_API char *sr_voltage_string(uint64_t v_p, uint64_t v_q)
919 return g_strdup_printf("%" PRIu64 " mV", v_p);
921 return g_strdup_printf("%" PRIu64 " V", v_p);
923 return g_strdup_printf("%g V", (float)v_p / (float)v_q);
927 * Convert a "natural" string representation of a size value to uint64_t.
929 * E.g. a value of "3k" or "3 K" would be converted to 3000, a value
930 * of "15M" would be converted to 15000000.
932 * Value representations other than decimal (such as hex or octal) are not
933 * supported. Only 'k' (kilo), 'm' (mega), 'g' (giga) suffixes are supported.
934 * Spaces (but not other whitespace) between value and suffix are allowed.
936 * @param sizestring A string containing a (decimal) size value.
937 * @param size Pointer to uint64_t which will contain the string's size value.
939 * @return SR_OK upon success, SR_ERR upon errors.
943 SR_API int sr_parse_sizestring(const char *sizestring, uint64_t *size)
950 *size = strtoull(sizestring, &s, 10);
954 while (s && *s && multiplier == 0 && !done) {
959 frac_part = g_ascii_strtod(s, &s);
963 multiplier = SR_KHZ(1);
967 multiplier = SR_MHZ(1);
971 multiplier = SR_GHZ(1);
975 multiplier = SR_GHZ(1000);
979 multiplier = SR_GHZ(1000 * 1000);
983 multiplier = SR_GHZ(1000 * 1000 * 1000);
991 if (multiplier > 0) {
993 *size += frac_part * multiplier;
998 if (s && *s && g_ascii_strcasecmp(s, "Hz"))
1005 * Convert a "natural" string representation of a time value to an
1006 * uint64_t value in milliseconds.
1008 * E.g. a value of "3s" or "3 s" would be converted to 3000, a value
1009 * of "15ms" would be converted to 15.
1011 * Value representations other than decimal (such as hex or octal) are not
1012 * supported. Only lower-case "s" and "ms" time suffixes are supported.
1013 * Spaces (but not other whitespace) between value and suffix are allowed.
1015 * @param timestring A string containing a (decimal) time value.
1016 * @return The string's time value as uint64_t, in milliseconds.
1018 * @todo Add support for "m" (minutes) and others.
1019 * @todo Add support for picoseconds?
1020 * @todo Allow both lower-case and upper-case? If no, document it.
1024 SR_API uint64_t sr_parse_timestring(const char *timestring)
1029 /* TODO: Error handling, logging. */
1031 time_msec = strtoull(timestring, &s, 10);
1032 if (time_msec == 0 && s == timestring)
1038 if (!strcmp(s, "s"))
1040 else if (!strcmp(s, "ms"))
1050 SR_API gboolean sr_parse_boolstring(const char *boolstr)
1053 * Complete absence of an input spec is assumed to mean TRUE,
1054 * as in command line option strings like this:
1055 * ...:samplerate=100k:header:numchannels=4:...
1057 if (!boolstr || !*boolstr)
1060 if (!g_ascii_strncasecmp(boolstr, "true", 4) ||
1061 !g_ascii_strncasecmp(boolstr, "yes", 3) ||
1062 !g_ascii_strncasecmp(boolstr, "on", 2) ||
1063 !g_ascii_strncasecmp(boolstr, "1", 1))
1070 SR_API int sr_parse_period(const char *periodstr, uint64_t *p, uint64_t *q)
1074 *p = strtoull(periodstr, &s, 10);
1075 if (*p == 0 && s == periodstr)
1076 /* No digits found. */
1082 if (!strcmp(s, "fs"))
1083 *q = UINT64_C(1000000000000000);
1084 else if (!strcmp(s, "ps"))
1085 *q = UINT64_C(1000000000000);
1086 else if (!strcmp(s, "ns"))
1087 *q = UINT64_C(1000000000);
1088 else if (!strcmp(s, "us"))
1090 else if (!strcmp(s, "ms"))
1092 else if (!strcmp(s, "s"))
1095 /* Must have a time suffix. */
1103 SR_API int sr_parse_voltage(const char *voltstr, uint64_t *p, uint64_t *q)
1107 *p = strtoull(voltstr, &s, 10);
1108 if (*p == 0 && s == voltstr)
1109 /* No digits found. */
1115 if (!g_ascii_strcasecmp(s, "mv"))
1117 else if (!g_ascii_strcasecmp(s, "v"))
1120 /* Must have a base suffix. */