Reduce visibility wherever possible - st - Personal fork of st
 (HTM) git clone git://git.drkhsh.at/st.git
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       ---
 (DIR) commit e0215d53770a9b6bc6e5d7b9a603ecd34dbd7100
 (DIR) parent 30683c70ab62fd37b5921cf72077b9aef2cb842e
 (HTM) Author: Devin J. Pohly <djpohly@gmail.com>
       Date:   Sat, 24 Feb 2018 16:32:20 -0600
       
       Reduce visibility wherever possible
       
       When possible, declare functions/variables static and move struct
       definitions out of headers.  In order to allow utf8decode to become
       internal, use codepoint for DECSCUSR extension directly.
       
       Signed-off-by: Devin J. Pohly <djpohly@gmail.com>
       
       Diffstat:
         M st.c                                |      31 ++++++++++++++++++++++++++++++-
         M st.h                                |      40 -------------------------------
         M win.h                               |       1 -
         M x.c                                 |      15 +++++++++++++--
       
       4 files changed, 43 insertions(+), 44 deletions(-)
       ---
 (DIR) diff --git a/st.c b/st.c
       @@ -36,6 +36,7 @@
        
        /* Arbitrary sizes */
        #define UTF_INVALID   0xFFFD
       +#define UTF_SIZ       4
        #define ESC_BUF_SIZ   (128*UTF_SIZ)
        #define ESC_ARG_SIZ   16
        #define STR_BUF_SIZ   ESC_BUF_SIZ
       @@ -95,6 +96,31 @@ enum escape_state {
                ESC_DCS        =128,
        };
        
       +typedef struct {
       +        Glyph attr; /* current char attributes */
       +        int x;
       +        int y;
       +        char state;
       +} TCursor;
       +
       +typedef struct {
       +        int mode;
       +        int type;
       +        int snap;
       +        /*
       +         * Selection variables:
       +         * nb – normalized coordinates of the beginning of the selection
       +         * ne – normalized coordinates of the end of the selection
       +         * ob – original coordinates of the beginning of the selection
       +         * oe – original coordinates of the end of the selection
       +         */
       +        struct {
       +                int x, y;
       +        } nb, ne, ob, oe;
       +
       +        int alt;
       +} Selection;
       +
        /* Internal representation of the screen */
        typedef struct {
                int row;      /* nb row */
       @@ -187,15 +213,18 @@ static void tstrsequence(uchar);
        
        static void drawregion(int, int, int, int);
        
       +static void selnormalize(void);
        static void selscroll(int, int);
        static void selsnap(int *, int *, int);
        
       +static size_t utf8decode(const char *, Rune *, size_t);
        static Rune utf8decodebyte(char, size_t *);
        static char utf8encodebyte(Rune, size_t);
       -static char *utf8strchr(char *s, Rune u);
       +static char *utf8strchr(char *, Rune);
        static size_t utf8validate(Rune *, size_t);
        
        static char *base64dec(const char *);
       +static char base64dec_getc(const char **);
        
        static ssize_t xwrite(int, const char *, size_t);
        
 (DIR) diff --git a/st.h b/st.h
       @@ -1,8 +1,5 @@
        /* See LICENSE for license details. */
        
       -/* Arbitrary sizes */
       -#define UTF_SIZ       4
       -
        /* macros */
        #define MIN(a, b)                ((a) < (b) ? (a) : (b))
        #define MAX(a, b)                ((a) < (b) ? (b) : (a))
       @@ -69,41 +66,6 @@ typedef struct {
        
        typedef Glyph *Line;
        
       -typedef struct {
       -        Glyph attr; /* current char attributes */
       -        int x;
       -        int y;
       -        char state;
       -} TCursor;
       -
       -/* Purely graphic info */
       -typedef struct {
       -        int tw, th; /* tty width and height */
       -        int w, h; /* window width and height */
       -        int ch; /* char height */
       -        int cw; /* char width  */
       -        int mode; /* window state/mode flags */
       -        int cursor; /* cursor style */
       -} TermWindow;
       -
       -typedef struct {
       -        int mode;
       -        int type;
       -        int snap;
       -        /*
       -         * Selection variables:
       -         * nb – normalized coordinates of the beginning of the selection
       -         * ne – normalized coordinates of the end of the selection
       -         * ob – original coordinates of the beginning of the selection
       -         * oe – original coordinates of the end of the selection
       -         */
       -        struct {
       -                int x, y;
       -        } nb, ne, ob, oe;
       -
       -        int alt;
       -} Selection;
       -
        typedef union {
                int i;
                uint ui;
       @@ -137,11 +99,9 @@ void selclear(void);
        void selinit(void);
        void selstart(int, int, int);
        void selextend(int, int, int, int);
       -void selnormalize(void);
        int selected(int, int);
        char *getsel(void);
        
       -size_t utf8decode(const char *, Rune *, size_t);
        size_t utf8encode(Rune, char *);
        
        void *xmalloc(size_t);
 (DIR) diff --git a/win.h b/win.h
       @@ -27,7 +27,6 @@ void xbell(void);
        void xclipcopy(void);
        void xdrawcursor(int, int, Glyph, int, int, Glyph);
        void xdrawline(Line, int, int, int);
       -void xhints(void);
        void xfinishdraw(void);
        void xloadcols(void);
        int xsetcolorname(int, const char *);
 (DIR) diff --git a/x.c b/x.c
       @@ -76,6 +76,15 @@ typedef XftGlyphFontSpec GlyphFontSpec;
        
        /* Purely graphic info */
        typedef struct {
       +        int tw, th; /* tty width and height */
       +        int w, h; /* window width and height */
       +        int ch; /* char height */
       +        int cw; /* char width  */
       +        int mode; /* window state/mode flags */
       +        int cursor; /* cursor style */
       +} TermWindow;
       +
       +typedef struct {
                Display *dpy;
                Colormap cmap;
                Window win;
       @@ -133,6 +142,8 @@ static int xgeommasktogravity(int);
        static void xinit(int, int);
        static void cresize(int, int);
        static void xresize(int, int);
       +static void xhints(void);
       +static int xloadcolor(int, const char *, Color *);
        static int xloadfont(Font *, FcPattern *);
        static void xloadfonts(char *, double);
        static void xunloadfont(Font *);
       @@ -1430,8 +1441,8 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
                /* draw the new one */
                if (IS_SET(MODE_FOCUSED)) {
                        switch (win.cursor) {
       -                case 7: /* st extension: snowman */
       -                        utf8decode("☃", &g.u, UTF_SIZ);
       +                case 7: /* st extension: snowman (U+2603) */
       +                        g.u = 0x2603;
                        case 0: /* Blinking Block */
                        case 1: /* Blinking Block (Default) */
                        case 2: /* Steady Block */