Hi,
I'm using awesome more than a year, but I never got
into the lua stuff (except for a small widget box).
Yesterday I was playing around with the lua api and realized
that the awesome-client isn't the crown juwel of awesome.
So I made my own. In interaktiv mode you have a history
and multiple lines support. And you can run scripts with
> awc script.lua
or
> cat script.lua | awc
The output is still whereever you've redirected the output of awesome.
You can compile it with
gcc awc.c liblua.a -lreadline -lncurses -lm -Wl,-E -o awc
It's a lazy and ugly hack, but maybe someone will find it useful, too.
Christian
/***********************************************
* public domain
************************************************/
#include <stdio.h>
#include <string.h>
#include <readline/readline.h>
#include <readline/history.h>
#define lua_c
#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"
/***********************************************
* funcs stolen from lua.c
************************************************/
static int incomplete (lua_State *L, int status) {
if (status == LUA_ERRSYNTAX) {
size_t lmsg;
const char *msg = lua_tolstring(L, -1, &lmsg);
const char *tp = msg + lmsg - (sizeof(LUA_QL("<eof>")) - 1);
if (strstr(msg, LUA_QL("<eof>")) == tp) {
lua_pop(L, 1);
return 1;
}
}
return 0;
}
static int pushline (lua_State *L, int firstline) {
char buffer[LUA_MAXINPUT];
char *b = buffer;
size_t l;
if ( isatty(0) )
if (firstline ) b = readline("awesome> ");
else b = readline("awesome>> ");
else b = readline("");
if (b == 0 ) return 0;
l = strlen(b);
if (l > 0 && b[l-1] == '\n') /* line ends with newline? */
b[l-1] = '\0'; /* remove it */
if (firstline && b[0] == '=') /* first line starts with `=' ? */
lua_pushfstring(L, "return %s", b+1); /* change it to `return' */
else
lua_pushstring(L, b);
lua_freeline(L, b);
return 1;
}
static int loadline (lua_State *L) {
int status;
lua_settop(L, 0);
if (!pushline(L, 1)) return -1; /* no input */
for (;;) { /* repeat until gets a complete line */
status = luaL_loadbuffer(L, lua_tostring(L, 1), lua_strlen(L, 1), "=stdin");
if (!incomplete(L, status)) break; /* cannot try to add lines? */
if (!pushline(L, 0)) /* no more input? */
return -1;
lua_pushliteral(L, "\n"); /* add a new line... */
lua_insert(L, -2); /* ...between the two lines */
lua_concat(L, 3); /* join them */
}
add_history(lua_tostring(L,1));
return status;
}
static void dotty () {
int status;
using_history();
lua_State *L = lua_open(); /* create state */
//lua_gc(L, LUA_GCSTOP, 0); /* stop collector during initialization */
luaL_openlibs(L); /* open libraries */
//lua_gc(L, LUA_GCRESTART, 0);
while ((status = loadline(L)) != -1) {
FILE* f = fopen("/tmp/awc", "w");
fputs( lua_tostring(L,1) , f);
fclose(f);
dbus_send("/tmp/awc");
}
lua_settop(L, 0); /* clear stack */
fputs("\n", stdout);
fflush(stdout);
lua_close(L);
}
/***********************************************
* dbus hack
************************************************/
dbus_send(char *input) {
char buf[500];
/*
if (tty)
sprintf(buf, "dbus-send --dest=org.awesome --type=method_call --print-reply / org.awesome.Remote.Eval string:\"%s\" | tail -n +2", input);
else
*/
sprintf(buf, "dbus-send --dest=org.awesome --type=method_call --print-reply / org.awesome.Remote.Eval string:\"`cat %s | sed 's/\"/\\\"/g' `\" | tail -n +2", input);
FILE* f = popen(buf, "w");
pclose(f);
}
/***********************************************
* main
************************************************/
int main (int argc, char **argv) {
if(argc > 2) {
printf("awc: wrong aguments\nusage: awc [filename]\n");
exit(1);
}
if(argc == 1 ) {
dotty();
} else {
dbus_send(argv[1]);
}
}
