Introduce nvim namespace: Move files.

Move files from src/ to src/nvim/.
- src/nvim/ becomes the new root dir for nvim executable sources.
- src/libnvim/ is planned to become root dir of the neovim library.

src/nvim/ascii.h

@@ -0,0 +1,97 @@
+/*
+ * VIM - Vi IMproved	by Bram Moolenaar
+ *
+ * Do ":help uganda"  in Vim to read copying and usage conditions.
+ * Do ":help credits" in Vim to see a list of people who contributed.
+ */
+
+#ifndef NEOVIM_ASCII_H
+#define NEOVIM_ASCII_H
+
+/*
+ * Definitions of various common control characters.
+ * For EBCDIC we have to use different values.
+ */
+
+
+/* IF_EB(ASCII_constant, EBCDIC_constant) */
+#define IF_EB(a, b)     a
+
+#define CharOrd(x)      ((x) < 'a' ? (x) - 'A' : (x) - 'a')
+#define CharOrdLow(x)   ((x) - 'a')
+#define CharOrdUp(x)    ((x) - 'A')
+#define ROT13(c, a)     (((((c) - (a)) + 13) % 26) + (a))
+
+#define NUL             '\000'
+#define BELL            '\007'
+#define BS              '\010'
+#define TAB             '\011'
+#define NL              '\012'
+#define NL_STR          (char_u *)"\012"
+#define FF              '\014'
+#define CAR             '\015'  /* CR is used by Mac OS X */
+#define ESC             '\033'
+#define ESC_STR         (char_u *)"\033"
+#define ESC_STR_nc      "\033"
+#define DEL             0x7f
+#define DEL_STR         (char_u *)"\177"
+#define CSI             0x9b    /* Control Sequence Introducer */
+#define CSI_STR         "\233"
+#define DCS             0x90    /* Device Control String */
+#define STERM           0x9c    /* String Terminator */
+
+#define POUND           0xA3
+
+#define Ctrl_chr(x)     (TOUPPER_ASC(x) ^ 0x40) /* '?' -> DEL, '@' -> ^@, etc. */
+#define Meta(x)         ((x) | 0x80)
+
+#define CTRL_F_STR      "\006"
+#define CTRL_H_STR      "\010"
+#define CTRL_V_STR      "\026"
+
+#define Ctrl_AT         0   /* @ */
+#define Ctrl_A          1
+#define Ctrl_B          2
+#define Ctrl_C          3
+#define Ctrl_D          4
+#define Ctrl_E          5
+#define Ctrl_F          6
+#define Ctrl_G          7
+#define Ctrl_H          8
+#define Ctrl_I          9
+#define Ctrl_J          10
+#define Ctrl_K          11
+#define Ctrl_L          12
+#define Ctrl_M          13
+#define Ctrl_N          14
+#define Ctrl_O          15
+#define Ctrl_P          16
+#define Ctrl_Q          17
+#define Ctrl_R          18
+#define Ctrl_S          19
+#define Ctrl_T          20
+#define Ctrl_U          21
+#define Ctrl_V          22
+#define Ctrl_W          23
+#define Ctrl_X          24
+#define Ctrl_Y          25
+#define Ctrl_Z          26
+/* CTRL- [ Left Square Bracket == ESC*/
+#define Ctrl_BSL        28  /* \ BackSLash */
+#define Ctrl_RSB        29  /* ] Right Square Bracket */
+#define Ctrl_HAT        30  /* ^ */
+#define Ctrl__          31
+
+
+/*
+ * Character that separates dir names in a path.
+ */
+#ifdef BACKSLASH_IN_FILENAME
+# define PATHSEP        psepc
+# define PATHSEPSTR     pseps
+#else
+# define PATHSEP        '/'
+# define PATHSEPSTR     "/"
+#endif
+
+#endif /* NEOVIM_ASCII_H */