Rename construct to construct_nfa and improve tests

lib/construct.c

@@ -143,7 +143,7 @@ static void construct_term(const regex_term_t *term, fsa_t *out)
 		construct_base(out, term->literal);
 		break;
 	case REGEX_TERM_SUBEXPR:
-		construct(&term->subexpr, out);
+		construct_nfa(&term->subexpr, out);
 		break;
 	case REGEX_TERM_WILDCARD:
 	case REGEX_TERM_CLASS:
@@ -199,7 +199,7 @@ static void construct_union(fsa_t *f, const fsa_t *o)
 	fsa_add_rule(f, final, 0, EPSILON);
 }
 
-void construct(const regex_t *regex, fsa_t *out)
+void construct_nfa(const regex_t *regex, fsa_t *out)
 {
 	assert(regex->count > 0);
 

lib/include/construct.h

@@ -9,6 +9,6 @@
 #include "fsa.h"
 #include "regex.h"
 
-void construct(const regex_t *regex, fsa_t *out);
+void construct_nfa(const regex_t *regex, fsa_t *out);
 
 #endif