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dmenu
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dmenu: style improvements 

- move main to bottom, usage above main.
- dont use variable names with function prototypes.
- space before if, for, while, etc: 'if(' -> 'if ('.

this makes the code-style more consistent
This commit is contained in:
Hiltjo Posthuma 2015-09-27 23:57:39 +02:00
parent 03cb1ec55a
commit cf0fb79cd8
1 changed files with 213 additions and 204 deletions
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251
dmenu.c
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@ -35,16 +35,16 @@ struct Item {
bool out; bool out;
}; };
static void appenditem(Item *item, Item **list, Item **last); static void appenditem(Item *, Item **, Item **);
static void calcoffsets(void); static void calcoffsets(void);
static char *cistrstr(const char *s, const char *sub); static char *cistrstr(const char *, const char *);
static void cleanup(void); static void cleanup(void);
static void drawmenu(void); static void drawmenu(void);
static void grabkeyboard(void); static void grabkeyboard(void);
static void insert(const char *str, ssize_t n); static void insert(const char *, ssize_t);
static void keypress(XKeyEvent *ev); static void keypress(XKeyEvent *);
static void match(void); static void match(void);
static size_t nextrune(int inc); static size_t nextrune(int);
static void paste(void); static void paste(void);
static void readstdin(void); static void readstdin(void);
static void run(void); static void run(void);
@ -53,99 +53,30 @@ static void usage(void);
static char text[BUFSIZ] = ""; static char text[BUFSIZ] = "";
static int bh, mw, mh; static int bh, mw, mh;
static int sw, sh; /* X display screen geometry width, height */
static int inputw, promptw; static int inputw, promptw;
static size_t cursor = 0; static size_t cursor;
static Atom clip, utf8;
static Item *items = NULL; static Item *items = NULL;
static Item *matches, *matchend; static Item *matches, *matchend;
static Item *prev, *curr, *next, *sel; static Item *prev, *curr, *next, *sel;
static Window win; static int mon = -1, screen;
static Atom clip, utf8;
static Display *dpy;
static Window root, win;
static XIC xic; static XIC xic;
static int mon = -1;
static ClrScheme scheme[SchemeLast]; static ClrScheme scheme[SchemeLast];
static Display *dpy;
static int screen;
static Window root;
static Drw *drw; static Drw *drw;
static int sw, sh; /* X display screen geometry width, height */
#include "config.h" #include "config.h"
static int (*fstrncmp)(const char *, const char *, size_t) = strncmp; static int (*fstrncmp)(const char *, const char *, size_t) = strncmp;
static char *(*fstrstr)(const char *, const char *) = strstr; static char *(*fstrstr)(const char *, const char *) = strstr;
int static void
main(int argc, char *argv[]) { appenditem(Item *item, Item **list, Item **last)
bool fast = false; {
int i;
for(i = 1; i < argc; i++)
/* these options take no arguments */
if(!strcmp(argv[i], "-v")) { /* prints version information */
puts("dmenu-"VERSION", © 2006-2015 dmenu engineers, see LICENSE for details");
exit(0);
}
else if(!strcmp(argv[i], "-b")) /* appears at the bottom of the screen */
topbar = false;
else if(!strcmp(argv[i], "-f")) /* grabs keyboard before reading stdin */
fast = true;
else if(!strcmp(argv[i], "-i")) { /* case-insensitive item matching */
fstrncmp = strncasecmp;
fstrstr = cistrstr;
}
else if(i+1 == argc)
usage();
/* these options take one argument */
else if(!strcmp(argv[i], "-l")) /* number of lines in vertical list */
lines = atoi(argv[++i]);
else if(!strcmp(argv[i], "-m"))
mon = atoi(argv[++i]);
else if(!strcmp(argv[i], "-p")) /* adds prompt to left of input field */
prompt = argv[++i];
else if(!strcmp(argv[i], "-fn")) /* font or font set */
fonts[0] = argv[++i];
else if(!strcmp(argv[i], "-nb")) /* normal background color */
normbgcolor = argv[++i];
else if(!strcmp(argv[i], "-nf")) /* normal foreground color */
normfgcolor = argv[++i];
else if(!strcmp(argv[i], "-sb")) /* selected background color */
selbgcolor = argv[++i];
else if(!strcmp(argv[i], "-sf")) /* selected foreground color */
selfgcolor = argv[++i];
else
usage();
if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
fputs("warning: no locale support\n", stderr);
if(!(dpy = XOpenDisplay(NULL)))
die("dmenu: cannot open display\n");
screen = DefaultScreen(dpy);
root = RootWindow(dpy, screen);
sw = DisplayWidth(dpy, screen);
sh = DisplayHeight(dpy, screen);
drw = drw_create(dpy, screen, root, sw, sh);
drw_load_fonts(drw, fonts, LENGTH(fonts));
if(!drw->fontcount)
die("No fonts could be loaded.\n");
drw_setscheme(drw, &scheme[SchemeNorm]);
if(fast) {
grabkeyboard();
readstdin();
}
else {
readstdin();
grabkeyboard();
}
setup();
run();
return 1; /* unreachable */
}
void
appenditem(Item *item, Item **list, Item **last) {
if (*last) if (*last)
(*last)->right = item; (*last)->right = item;
else else
@ -156,8 +87,9 @@ appenditem(Item *item, Item **list, Item **last) {
*last = item; *last = item;
} }
void static void
calcoffsets(void) { calcoffsets(void)
{
int i, n; int i, n;
if (lines > 0) if (lines > 0)
@ -173,8 +105,9 @@ calcoffsets(void) {
break; break;
} }
void static void
cleanup(void) { cleanup(void)
{
XUngrabKey(dpy, AnyKey, AnyModifier, root); XUngrabKey(dpy, AnyKey, AnyModifier, root);
drw_clr_free(scheme[SchemeNorm].bg); drw_clr_free(scheme[SchemeNorm].bg);
drw_clr_free(scheme[SchemeNorm].fg); drw_clr_free(scheme[SchemeNorm].fg);
@ -187,8 +120,9 @@ cleanup(void) {
XCloseDisplay(dpy); XCloseDisplay(dpy);
} }
char * static char *
cistrstr(const char *s, const char *sub) { cistrstr(const char *s, const char *sub)
{
size_t len; size_t len;
for (len = strlen(sub); *s; s++) for (len = strlen(sub); *s; s++)
@ -197,8 +131,9 @@ cistrstr(const char *s, const char *sub) {
return NULL; return NULL;
} }
void static void
drawmenu(void) { drawmenu(void)
{
int curpos; int curpos;
Item *item; Item *item;
int x = 0, y = 0, h = bh, w; int x = 0, y = 0, h = bh, w;
@ -235,8 +170,7 @@ drawmenu(void) {
drw_text(drw, x, y, w, bh, item->text, 0); drw_text(drw, x, y, w, bh, item->text, 0);
} }
} } else if (matches) {
else if(matches) {
/* draw horizontal list */ /* draw horizontal list */
x += inputw; x += inputw;
w = TEXTW("<"); w = TEXTW("<");
@ -266,8 +200,9 @@ drawmenu(void) {
drw_map(drw, win, 0, 0, mw, mh); drw_map(drw, win, 0, 0, mw, mh);
} }
void static void
grabkeyboard(void) { grabkeyboard(void)
{
int i; int i;
/* try to grab keyboard, we may have to wait for another process to ungrab */ /* try to grab keyboard, we may have to wait for another process to ungrab */
@ -280,8 +215,9 @@ grabkeyboard(void) {
die("cannot grab keyboard\n"); die("cannot grab keyboard\n");
} }
void static void
insert(const char *str, ssize_t n) { insert(const char *str, ssize_t n)
{
if (strlen(text) + n > sizeof text - 1) if (strlen(text) + n > sizeof text - 1)
return; return;
/* move existing text out of the way, insert new text, and update cursor */ /* move existing text out of the way, insert new text, and update cursor */
@ -292,8 +228,9 @@ insert(const char *str, ssize_t n) {
match(); match();
} }
void static void
keypress(XKeyEvent *ev) { keypress(XKeyEvent *ev)
{
char buf[32]; char buf[32];
int len; int len;
KeySym ksym = NoSymbol; KeySym ksym = NoSymbol;
@ -461,8 +398,9 @@ keypress(XKeyEvent *ev) {
drawmenu(); drawmenu();
} }
void static void
match(void) { match(void)
{
static char **tokv = NULL; static char **tokv = NULL;
static int tokn = 0; static int tokn = 0;
@ -497,8 +435,7 @@ match(void) {
if (matches) { if (matches) {
matchend->right = lprefix; matchend->right = lprefix;
lprefix->left = matchend; lprefix->left = matchend;
} } else
else
matches = lprefix; matches = lprefix;
matchend = prefixend; matchend = prefixend;
} }
@ -506,8 +443,7 @@ match(void) {
if (matches) { if (matches) {
matchend->right = lsubstr; matchend->right = lsubstr;
lsubstr->left = matchend; lsubstr->left = matchend;
} } else
else
matches = lsubstr; matches = lsubstr;
matchend = substrend; matchend = substrend;
} }
@ -515,17 +451,20 @@ match(void) {
calcoffsets(); calcoffsets();
} }
size_t static size_t
nextrune(int inc) { nextrune(int inc)
{
ssize_t n; ssize_t n;
/* return location of next utf8 rune in the given direction (+1 or -1) */ /* return location of next utf8 rune in the given direction (+1 or -1) */
for(n = cursor + inc; n + inc >= 0 && (text[n] & 0xc0) == 0x80; n += inc); for (n = cursor + inc; n + inc >= 0 && (text[n] & 0xc0) == 0x80; n += inc)
;
return n; return n;
} }
void static void
paste(void) { paste(void)
{
char *p, *q; char *p, *q;
int di; int di;
unsigned long dl; unsigned long dl;
@ -539,8 +478,9 @@ paste(void) {
drawmenu(); drawmenu();
} }
void static void
readstdin(void) { readstdin(void)
{
char buf[sizeof text], *p, *maxstr = NULL; char buf[sizeof text], *p, *maxstr = NULL;
size_t i, max = 0, size = 0; size_t i, max = 0, size = 0;
@ -563,8 +503,9 @@ readstdin(void) {
lines = MIN(lines, i); lines = MIN(lines, i);
} }
void static void
run(void) { run(void)
{
XEvent ev; XEvent ev;
while (!XNextEvent(dpy, &ev)) { while (!XNextEvent(dpy, &ev)) {
@ -590,8 +531,9 @@ run(void) {
} }
} }
void static void
setup(void) { setup(void)
{
int x, y; int x, y;
XSetWindowAttributes swa; XSetWindowAttributes swa;
XIM xim; XIM xim;
@ -647,8 +589,7 @@ setup(void) {
y = info[i].y_org + (topbar ? 0 : info[i].height - mh); y = info[i].y_org + (topbar ? 0 : info[i].height - mh);
mw = info[i].width; mw = info[i].width;
XFree(info); XFree(info);
} } else
else
#endif #endif
{ {
x = 0; x = 0;
@ -678,9 +619,77 @@ setup(void) {
drawmenu(); drawmenu();
} }
void static void
usage(void) { usage(void)
{
fputs("usage: dmenu [-b] [-f] [-i] [-l lines] [-p prompt] [-fn font] [-m monitor]\n" fputs("usage: dmenu [-b] [-f] [-i] [-l lines] [-p prompt] [-fn font] [-m monitor]\n"
" [-nb color] [-nf color] [-sb color] [-sf color] [-v]\n", stderr); " [-nb color] [-nf color] [-sb color] [-sf color] [-v]\n", stderr);
exit(1); exit(1);
} }
int
main(int argc, char *argv[])
{
bool fast = false;
int i;
for (i = 1; i < argc; i++)
/* these options take no arguments */
if (!strcmp(argv[i], "-v")) { /* prints version information */
puts("dmenu-"VERSION);
exit(0);
} else if (!strcmp(argv[i], "-b")) /* appears at the bottom of the screen */
topbar = false;
else if (!strcmp(argv[i], "-f")) /* grabs keyboard before reading stdin */
fast = true;
else if (!strcmp(argv[i], "-i")) { /* case-insensitive item matching */
fstrncmp = strncasecmp;
fstrstr = cistrstr;
} else if (i + 1 == argc)
usage();
/* these options take one argument */
else if (!strcmp(argv[i], "-l")) /* number of lines in vertical list */
lines = atoi(argv[++i]);
else if (!strcmp(argv[i], "-m"))
mon = atoi(argv[++i]);
else if (!strcmp(argv[i], "-p")) /* adds prompt to left of input field */
prompt = argv[++i];
else if (!strcmp(argv[i], "-fn")) /* font or font set */
fonts[0] = argv[++i];
else if (!strcmp(argv[i], "-nb")) /* normal background color */
normbgcolor = argv[++i];
else if (!strcmp(argv[i], "-nf")) /* normal foreground color */
normfgcolor = argv[++i];
else if (!strcmp(argv[i], "-sb")) /* selected background color */
selbgcolor = argv[++i];
else if (!strcmp(argv[i], "-sf")) /* selected foreground color */
selfgcolor = argv[++i];
else
usage();
if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
fputs("warning: no locale support\n", stderr);
if (!(dpy = XOpenDisplay(NULL)))
die("cannot open display\n");
screen = DefaultScreen(dpy);
root = RootWindow(dpy, screen);
sw = DisplayWidth(dpy, screen);
sh = DisplayHeight(dpy, screen);
drw = drw_create(dpy, screen, root, sw, sh);
drw_load_fonts(drw, fonts, LENGTH(fonts));
if (!drw->fontcount)
die("no fonts could be loaded.\n");
drw_setscheme(drw, &scheme[SchemeNorm]);
if (fast) {
grabkeyboard();
readstdin();
} else {
readstdin();
grabkeyboard();
}
setup();
run();
return 1; /* unreachable */
}