strutil: Assume bool is true when no value is specified

[libsigrok.git] / src / strutil.c

diff --git a/src/strutil.c b/src/strutil.c
index 72378d4a2942d5dd7f411e35d41ffb7a01b9a183..382708936244ba9a3f0b2aa0972c66fab12177c2 100644 (file)
--- a/src/strutil.c
+++ b/src/strutil.c
@@ -555,8 +555,13 @@ SR_API uint64_t sr_parse_timestring(const char *timestring)
 /** @since 0.1.0 */
 SR_API gboolean sr_parse_boolstring(const char *boolstr)
 {
-       if (!boolstr)
-               return FALSE;
+       /*
+        * Complete absence of an input spec is assumed to mean TRUE,
+        * as in command line option strings like this:
+        *   ...:samplerate=100k:header:numchannels=4:...
+        */
+       if (!boolstr || !*boolstr)
+               return TRUE;
 
        if (!g_ascii_strncasecmp(boolstr, "true", 4) ||
            !g_ascii_strncasecmp(boolstr, "yes", 3) ||