Add automatic generation of headers

- The 'stripdecls.py' script replaces declarations in all headers by includes to
  generated headers.
  `ag '#\s*if(?!ndef NEOVIM_).*((?!#\s*endif).*\n)*#ifdef INCLUDE_GENERATED'`
  was used for this.
- Add and integrate gendeclarations.lua into the build system to generate the
  required includes.
- Add -Wno-unused-function
- Made a bunch of old-style definitions ANSI

This adds a requirement: all type and structure definitions must be present
before INCLUDE_GENERATED_DECLARATIONS-protected include.

Warning: mch_expandpath (path.h.generated.h) was moved manually. So far it is
the only exception.

1 files changed, 3 insertions, 61 deletions

diff --git a/src/nvim/charset.h b/src/nvim/charset.h
index f273ed4c96..a4e5ca0eba 100644
--- a/src/nvim/charset.h
+++ b/src/nvim/charset.h
@@ -1,66 +1,8 @@
 #ifndef NVIM_CHARSET_H
 #define NVIM_CHARSET_H
 
-int init_chartab(void);
-int buf_init_chartab(buf_T *buf, int global);
-void trans_characters(char_u *buf, int bufsize);
-char_u *transstr(char_u *s);
-char_u *str_foldcase(char_u *str, int orglen, char_u *buf, int buflen);
-char_u *transchar(int c);
-char_u *transchar_byte(int c);
-void transchar_nonprint(char_u *buf, int c);
-void transchar_hex(char_u *buf, int c);
-int byte2cells(int b);
-int char2cells(int c);
-int ptr2cells(char_u *p);
-int vim_strsize(char_u *s);
-int vim_strnsize(char_u *s, int len);
-int chartabsize(char_u *p, colnr_T col);
-int linetabsize(char_u *s);
-int linetabsize_col(int startcol, char_u *s);
-int win_linetabsize(win_T *wp, char_u *p, colnr_T len);
-int vim_isIDc(int c);
-int vim_iswordc(int c);
-int vim_iswordc_buf(int c, buf_T *buf);
-int vim_iswordp(char_u *p);
-int vim_iswordp_buf(char_u *p, buf_T *buf);
-int vim_isfilec(int c);
-int vim_isfilec_or_wc(int c);
-int vim_isprintc(int c);
-int vim_isprintc_strict(int c);
-int lbr_chartabsize(unsigned char *s, colnr_T col);
-int lbr_chartabsize_adv(char_u **s, colnr_T col);
-int win_lbr_chartabsize(win_T *wp, char_u *s, colnr_T col, int *headp);
-int in_win_border(win_T *wp, colnr_T vcol);
-void getvcol(win_T *wp, pos_T *pos, colnr_T *start, colnr_T *cursor,
-             colnr_T *end);
-colnr_T getvcol_nolist(pos_T *posp);
-void getvvcol(win_T *wp, pos_T *pos, colnr_T *start, colnr_T *cursor,
-              colnr_T *end);
-void getvcols(win_T *wp, pos_T *pos1, pos_T *pos2, colnr_T *left,
-              colnr_T *right);
-char_u *skipwhite(char_u *q);
-char_u *skipdigits(char_u *q);
-char_u *skiphex(char_u *q);
-char_u *skiptodigit(char_u *q);
-char_u *skiptohex(char_u *q);
-int vim_isdigit(int c);
-int vim_isxdigit(int c);
-int vim_islower(int c);
-int vim_isupper(int c);
-int vim_toupper(int c);
-int vim_tolower(int c);
-char_u *skiptowhite(char_u *p);
-char_u *skiptowhite_esc(char_u *p);
-long getdigits(char_u **pp);
-int vim_isblankline(char_u *lbuf);
-void vim_str2nr(char_u *start, int *hexp, int *len, int dooct,
-                int dohex, long *nptr,
-                unsigned long *unptr);
-int hex2nr(int c);
-int hexhex2nr(char_u *p);
-int rem_backslash(char_u *str);
-void backslash_halve(char_u *p);
-char_u *backslash_halve_save(char_u *p);
 
+#ifdef INCLUDE_GENERATED_DECLARATIONS
+# include "charset.h.generated.h"
+#endif
 #endif  // NVIM_CHARSET_H