Add the framework for character classes.

Now we have the potential to recognize character classes.  But the
most important task for us now is to experiment with ((B)RN)GLR
algorithms, so we leave the character classes at the present state for
a moment.

1 files changed, 5 insertions, 5 deletions

diff --git a/src/str.c b/src/str.c
index 46dc4a8..fdff99a 100644
--- a/src/str.c
+++ b/src/str.c
@@ -4,7 +4,7 @@
 
 H_ATTR
 str_info
-_info_getter(str *s, UNUM n)
+_info_getter(const str * const restrict s, UNUM n)
 {
   return (str_info) { (NUM) *(s->data+n), 1 };
 }
@@ -41,14 +41,14 @@ destroy_str(str *s, int flag)
 
 H_ATTR
 str_info
-get_info(str *s, UNUM n)
+get_info(const str * const restrict s, UNUM n)
 {
   return s->getter(s, n);
 }
 
 H_ATTR
 NUM
-str_length(str *s)
+str_length(const str * const restrict s)
 {
   return s->size;
 }
@@ -60,7 +60,7 @@ change_str_content(str *s, char *str, NUM size)
   s->size = size;
 }
 
-unsigned char
+BOOL
 copy_str(str *dest, str *source)
 {
   if (str_length(dest) < str_length(source))
@@ -74,7 +74,7 @@ copy_str(str *dest, str *source)
 }
 
 char *
-get_data(str *s)
+get_data(const str * const restrict s)
 {
   return s->data;
 }