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Reduce visibility wherever possible

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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
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31
st.c
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@ -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);