diff --git a/examples/printf_fmt.c b/examples/printf_fmt.c
index 25b590c..fca399e 100644
--- a/examples/printf_fmt.c
+++ b/examples/printf_fmt.c
@@ -9,11 +9,7 @@ int main()
 
         struct KernAux_PrintfFmt_Spec spec = KernAux_PrintfFmt_Spec_create();
 
-        KernAux_PrintfFmt_Spec_parse_flags(&spec, &format);
-        KernAux_PrintfFmt_Spec_parse_width(&spec, &format);
-        KernAux_PrintfFmt_Spec_parse_precision(&spec, &format);
-        KernAux_PrintfFmt_Spec_parse_length(&spec, &format);
-        KernAux_PrintfFmt_Spec_parse_type(&spec, &format);
+        format = KernAux_PrintfFmt_Spec_parse(&spec, format);
 
         if (spec.set_width) {
             // Actually this line won't be executed.
@@ -36,6 +32,7 @@ int main()
 
         struct KernAux_PrintfFmt_Spec spec = KernAux_PrintfFmt_Spec_create();
 
+        // Parsing of each part may be done separately.
         KernAux_PrintfFmt_Spec_parse_flags(&spec, &format);
         KernAux_PrintfFmt_Spec_parse_width(&spec, &format);
         KernAux_PrintfFmt_Spec_parse_precision(&spec, &format);
@@ -65,15 +62,12 @@ int main()
     }
 
     {
-        const char *format = " *.*ld";
+        const char *const format = " *.*ld";
 
         struct KernAux_PrintfFmt_Spec spec = KernAux_PrintfFmt_Spec_create();
 
-        KernAux_PrintfFmt_Spec_parse_flags(&spec, &format);
-        KernAux_PrintfFmt_Spec_parse_width(&spec, &format);
-        KernAux_PrintfFmt_Spec_parse_precision(&spec, &format);
-        KernAux_PrintfFmt_Spec_parse_length(&spec, &format);
-        KernAux_PrintfFmt_Spec_parse_type(&spec, &format);
+        // Returning value may be ignored.
+        KernAux_PrintfFmt_Spec_parse(&spec, format);
 
         if (spec.set_width) {
             KernAux_PrintfFmt_Spec_set_width(&spec, 12);
diff --git a/include/kernaux/printf_fmt.h b/include/kernaux/printf_fmt.h
index 5c65f7f..7a48c7c 100644
--- a/include/kernaux/printf_fmt.h
+++ b/include/kernaux/printf_fmt.h
@@ -48,6 +48,8 @@ struct KernAux_PrintfFmt_Spec {
 struct KernAux_PrintfFmt_Spec KernAux_PrintfFmt_Spec_create();
 void KernAux_PrintfFmt_Spec_init(struct KernAux_PrintfFmt_Spec *spec);
 
+const char *KernAux_PrintfFmt_Spec_parse(struct KernAux_PrintfFmt_Spec *spec, const char *format);
+
 void KernAux_PrintfFmt_Spec_parse_flags(struct KernAux_PrintfFmt_Spec *spec, const char **format);
 void KernAux_PrintfFmt_Spec_parse_width(struct KernAux_PrintfFmt_Spec *spec, const char **format);
 void KernAux_PrintfFmt_Spec_parse_precision(struct KernAux_PrintfFmt_Spec *spec, const char **format);
diff --git a/pkgs/ruby/ext/default/extconf.rb b/pkgs/ruby/ext/default/extconf.rb
index 08ee336..710cbf7 100644
--- a/pkgs/ruby/ext/default/extconf.rb
+++ b/pkgs/ruby/ext/default/extconf.rb
@@ -22,11 +22,7 @@ have_func 'kernaux_snprintf'
 
 # TODO: do something if not found?
 have_func 'KernAux_PrintfFmt_Spec_create'
-have_func 'KernAux_PrintfFmt_Spec_parse_flags'
-have_func 'KernAux_PrintfFmt_Spec_parse_width'
-have_func 'KernAux_PrintfFmt_Spec_parse_precision'
-have_func 'KernAux_PrintfFmt_Spec_parse_length'
-have_func 'KernAux_PrintfFmt_Spec_parse_type'
+have_func 'KernAux_PrintfFmt_Spec_parse'
 have_func 'KernAux_PrintfFmt_Spec_set_width'
 have_func 'KernAux_PrintfFmt_Spec_set_precision'
 
diff --git a/pkgs/ruby/ext/default/printf.c b/pkgs/ruby/ext/default/printf.c
index 78f4114..314bf04 100644
--- a/pkgs/ruby/ext/default/printf.c
+++ b/pkgs/ruby/ext/default/printf.c
@@ -42,11 +42,8 @@ VALUE rb_KernAux_snprintf1(
     if (*(fmt++) != '%') rb_raise(rb_eArgError, "invalid format");
 
     struct KernAux_PrintfFmt_Spec spec = KernAux_PrintfFmt_Spec_create();
-    KernAux_PrintfFmt_Spec_parse_flags(&spec, &fmt);
-    KernAux_PrintfFmt_Spec_parse_width(&spec, &fmt);
-    KernAux_PrintfFmt_Spec_parse_precision(&spec, &fmt);
-    KernAux_PrintfFmt_Spec_parse_length(&spec, &fmt);
-    KernAux_PrintfFmt_Spec_parse_type(&spec, &fmt);
+
+    fmt = KernAux_PrintfFmt_Spec_parse(&spec, fmt);
 
     while (*fmt) {
         if (*(fmt++) == '%') rb_raise(rb_eArgError, "invalid format");
diff --git a/src/printf.c b/src/printf.c
index 423321b..677b62e 100644
--- a/src/printf.c
+++ b/src/printf.c
@@ -153,11 +153,7 @@ int _vsnprintf(out_fct_type out, char* buffer, const size_t maxlen, const char*
 
         struct KernAux_PrintfFmt_Spec spec = KernAux_PrintfFmt_Spec_create();
 
-        KernAux_PrintfFmt_Spec_parse_flags(&spec, &format);
-        KernAux_PrintfFmt_Spec_parse_width(&spec, &format);
-        KernAux_PrintfFmt_Spec_parse_precision(&spec, &format);
-        KernAux_PrintfFmt_Spec_parse_length(&spec, &format);
-        KernAux_PrintfFmt_Spec_parse_type(&spec, &format);
+        format = KernAux_PrintfFmt_Spec_parse(&spec, format);
 
         if (spec.set_width) {
             KernAux_PrintfFmt_Spec_set_width(&spec, va_arg(va, int));
diff --git a/src/printf_fmt.c b/src/printf_fmt.c
index 3ab2746..8e95fbd 100644
--- a/src/printf_fmt.c
+++ b/src/printf_fmt.c
@@ -37,6 +37,20 @@ void KernAux_PrintfFmt_Spec_init(struct KernAux_PrintfFmt_Spec *const spec)
     spec->set_precision = false;
 }
 
+const char *KernAux_PrintfFmt_Spec_parse(struct KernAux_PrintfFmt_Spec *spec, const char *format)
+{
+    KERNAUX_NOTNULL_RETVAL(spec, NULL);
+    KERNAUX_NOTNULL_RETVAL(format, NULL);
+
+    KernAux_PrintfFmt_Spec_parse_flags(spec, &format);
+    KernAux_PrintfFmt_Spec_parse_width(spec, &format);
+    KernAux_PrintfFmt_Spec_parse_precision(spec, &format);
+    KernAux_PrintfFmt_Spec_parse_length(spec, &format);
+    KernAux_PrintfFmt_Spec_parse_type(spec, &format);
+
+    return format;
+}
+
 void KernAux_PrintfFmt_Spec_parse_flags(struct KernAux_PrintfFmt_Spec *const spec, const char **const format)
 {
     KERNAUX_NOTNULL_RETURN(spec);
diff --git a/tests/printf_fmt_gen.jinja b/tests/printf_fmt_gen.jinja
index f1f2777..90cc611 100644
--- a/tests/printf_fmt_gen.jinja
+++ b/tests/printf_fmt_gen.jinja
@@ -10,15 +10,11 @@ int main()
 {
     {% for case in cases %}
     {
-        const char *format = {{ escape_str(case.in.format) }};
+        const char *const format = {{ escape_str(case.in.format) }};
 
         struct KernAux_PrintfFmt_Spec spec = KernAux_PrintfFmt_Spec_create();
 
-        KernAux_PrintfFmt_Spec_parse_flags(&spec, &format);
-        KernAux_PrintfFmt_Spec_parse_width(&spec, &format);
-        KernAux_PrintfFmt_Spec_parse_precision(&spec, &format);
-        KernAux_PrintfFmt_Spec_parse_length(&spec, &format);
-        KernAux_PrintfFmt_Spec_parse_type(&spec, &format);
+        KernAux_PrintfFmt_Spec_parse(&spec, format);
 
         if (spec.set_width) {
             KernAux_PrintfFmt_Spec_set_width(&spec, {{ none_to_zero(case.in.width) }});