Mild const-correctness improvements.
Only touch a few things, the main focus is to improve code readability.
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9e68fdbcdb
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44
st.c
44
st.c
@ -186,18 +186,18 @@ static void tputc(Rune);
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static void treset(void);
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static void tscrollup(int, int);
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static void tscrolldown(int, int);
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static void tsetattr(int *, int);
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static void tsetchar(Rune, Glyph *, int, int);
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static void tsetattr(const int *, int);
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static void tsetchar(Rune, const Glyph *, int, int);
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static void tsetdirt(int, int);
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static void tsetscroll(int, int);
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static void tswapscreen(void);
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static void tsetmode(int, int, int *, int);
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static void tsetmode(int, int, const int *, int);
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static int twrite(const char *, int, int);
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static void tfulldirt(void);
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static void tcontrolcode(uchar );
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static void tdectest(char );
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static void tdefutf8(char);
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static int32_t tdefcolor(int *, int *, int);
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static int32_t tdefcolor(const int *, int *, int);
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static void tdeftran(char);
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static void tstrsequence(uchar);
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@ -226,10 +226,10 @@ static int iofd = 1;
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static int cmdfd;
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static pid_t pid;
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static uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
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static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
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static Rune utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
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static Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
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static const uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
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static const uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
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static const Rune utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
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static const Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
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ssize_t
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xwrite(int fd, const char *s, size_t len)
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@ -269,12 +269,14 @@ xrealloc(void *p, size_t len)
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}
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char *
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xstrdup(char *s)
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xstrdup(const char *s)
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{
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if ((s = strdup(s)) == NULL)
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char *p;
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if ((p = strdup(s)) == NULL)
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die("strdup: %s\n", strerror(errno));
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return s;
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return p;
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}
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size_t
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@ -518,7 +520,7 @@ selsnap(int *x, int *y, int direction)
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{
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int newx, newy, xt, yt;
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int delim, prevdelim;
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Glyph *gp, *prevgp;
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const Glyph *gp, *prevgp;
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switch (sel.snap) {
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case SNAP_WORD:
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@ -591,7 +593,7 @@ getsel(void)
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{
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char *str, *ptr;
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int y, bufsize, lastx, linelen;
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Glyph *gp, *last;
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const Glyph *gp, *last;
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if (sel.ob.x == -1)
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return NULL;
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@ -758,7 +760,7 @@ stty(char **args)
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}
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int
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ttynew(char *line, char *cmd, char *out, char **args)
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ttynew(const char *line, char *cmd, const char *out, char **args)
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{
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int m, s;
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@ -1186,9 +1188,9 @@ tmoveto(int x, int y)
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}
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void
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tsetchar(Rune u, Glyph *attr, int x, int y)
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tsetchar(Rune u, const Glyph *attr, int x, int y)
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{
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static char *vt100_0[62] = { /* 0x41 - 0x7e */
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static const char *vt100_0[62] = { /* 0x41 - 0x7e */
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"↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
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0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
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0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
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@ -1300,7 +1302,7 @@ tdeleteline(int n)
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}
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int32_t
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tdefcolor(int *attr, int *npar, int l)
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tdefcolor(const int *attr, int *npar, int l)
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{
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int32_t idx = -1;
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uint r, g, b;
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@ -1350,7 +1352,7 @@ tdefcolor(int *attr, int *npar, int l)
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}
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void
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tsetattr(int *attr, int l)
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tsetattr(const int *attr, int l)
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{
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int i;
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int32_t idx;
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@ -1468,9 +1470,9 @@ tsetscroll(int t, int b)
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}
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void
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tsetmode(int priv, int set, int *args, int narg)
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tsetmode(int priv, int set, const int *args, int narg)
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{
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int alt, *lim;
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int alt; const int *lim;
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for (lim = args + narg; args < lim; ++args) {
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if (priv) {
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@ -2020,7 +2022,7 @@ void
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tdumpline(int n)
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{
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char buf[UTF_SIZ];
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Glyph *bp, *end;
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const Glyph *bp, *end;
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bp = &term.line[n][0];
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end = &bp[MIN(tlinelen(n), term.col) - 1];
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4
st.h
4
st.h
@ -91,7 +91,7 @@ void tnew(int, int);
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void tresize(int, int);
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void tsetdirtattr(int);
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void ttyhangup(void);
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int ttynew(char *, char *, char *, char **);
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int ttynew(const char *, char *, const char *, char **);
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size_t ttyread(void);
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void ttyresize(int, int);
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void ttywrite(const char *, size_t, int);
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@ -109,7 +109,7 @@ size_t utf8encode(Rune, char *);
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void *xmalloc(size_t);
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void *xrealloc(void *, size_t);
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char *xstrdup(char *);
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char *xstrdup(const char *);
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/* config.h globals */
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extern char *utmp;
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6
x.c
6
x.c
@ -156,7 +156,7 @@ static void xresize(int, int);
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static void xhints(void);
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static int xloadcolor(int, const char *, Color *);
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static int xloadfont(Font *, FcPattern *);
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static void xloadfonts(char *, double);
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static void xloadfonts(const char *, double);
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static void xunloadfont(Font *);
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static void xunloadfonts(void);
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static void xsetenv(void);
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@ -952,7 +952,7 @@ xloadfont(Font *f, FcPattern *pattern)
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}
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void
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xloadfonts(char *fontstr, double fontsize)
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xloadfonts(const char *fontstr, double fontsize)
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{
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FcPattern *pattern;
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double fontval;
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@ -960,7 +960,7 @@ xloadfonts(char *fontstr, double fontsize)
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if (fontstr[0] == '-')
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pattern = XftXlfdParse(fontstr, False, False);
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else
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pattern = FcNameParse((FcChar8 *)fontstr);
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pattern = FcNameParse((const FcChar8 *)fontstr);
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if (!pattern)
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die("can't open font %s\n", fontstr);
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