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>
This commit is contained in:
Devin J. Pohly 2018-02-24 16:32:20 -06:00
parent 30683c70ab
commit e0215d5377
4 changed files with 43 additions and 44 deletions

31
st.c
View file

@ -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);

40
st.h
View file

@ -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);

1
win.h
View file

@ -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 *);

15
x.c
View file

@ -75,6 +75,15 @@ typedef XftColor Color;
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;
@ -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 */