Some API updates cstr, csview with utf8. Added front()/back() to cstack.

2 files changed, 3 insertions, 5 deletions

diff --git a/docs/cstr_api.md b/docs/cstr_api.md
index d4e292cd..8c28a601 100644
--- a/docs/cstr_api.md
+++ b/docs/cstr_api.md
@@ -99,7 +99,7 @@ size_t       cstr_u8_size_n(const cstr self, size_t nbytes);          // utf8 si
 size_t       cstr_u8_to_pos(const cstr* self, size_t u8idx);          // byte pos offset at utf8 codepoint index
 const char*  cstr_u8_at(const cstr* self, size_t u8idx);              // char* position at utf8 codepoint index
 csview       cstr_u8_chr(const cstr* self, size_t u8idx);             // get utf8 character as a csview
-void         cstr_u8_replace(cstr* self, size_t pos, size_t u8len, csview repl); // replace u8len utf8 chars
+void         cstr_u8_replace(cstr* self, size_t bytepos, size_t u8len, csview repl); // replace u8len utf8 chars
 
 // iterate utf8 codepoints
 cstr_iter    cstr_begin(const cstr* self);
diff --git a/docs/csview_api.md b/docs/csview_api.md
index 128a1c9d..65e9a066 100644
--- a/docs/csview_api.md
+++ b/docs/csview_api.md
@@ -49,8 +49,7 @@ csview          csview_token(csview sv, csview sep, size_t* start);    // *start
 #### UTF8 methods
 ```c
 size_t          csview_u8_size(csview sv);
-csview          csview_u8_substr(csview sv, size_t u8pos, size_t u8len);
-csview          csview_u8_slice(csview sv, size_t u8p1, size_t u8p2);
+csview          csview_u8_substr(csview sv, size_t bytepos, size_t u8len);
 bool            csview_valid_utf8(csview sv);                       // requires linking with src/utf8code.c
 
 csview_iter     csview_begin(const csview* self);
@@ -75,11 +74,10 @@ uint32_t        utf8_peek(const char* s, int pos);                  // codepoint
 ```c
 csview          cstr_substr(const cstr* self, size_t pos, size_t n);
 csview          cstr_substr_ex(const cstr* s, intptr_t pos, size_t n); // negative pos count from end
-csview          cstr_u8_substr(const cstr* self, size_t u8pos, size_t u8len);
+csview          cstr_u8_substr(const cstr* self, size_t bytepos, size_t u8len);
 
 csview          cstr_slice(const cstr* self, size_t p1, size_t p2);
 csview          cstr_slice_ex(const cstr* s, intptr_t p, intptr_t q);  // negative p or q count from end
-csview          cstr_u8_slice(const cstr* self, size_t u8p1, size_t u8p2);
 ```
 
 #### Helper methods