tree: reformat
Done automatically by clang-format
This commit is contained in:
parent
669eb3fd28
commit
30a1097bb0
8 changed files with 311 additions and 278 deletions
216
csto.c
216
csto.c
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@ -4,10 +4,10 @@
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* Copyright (c) 2023-2024 Jeremy Baxter.
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*/
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <signal.h>
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#include <unistd.h>
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#include <lua/lauxlib.h>
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@ -30,11 +30,12 @@ static lua_State *globalL = NULL;
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static const char *progname = LUA_PROGNAME;
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/*
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* Use 'sigaction' when available.
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*/
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static void setsignal (int sig, void (*handler)(int)) {
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static void
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setsignal(int sig, void (*handler)(int))
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{
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struct sigaction sa;
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sa.sa_handler = handler;
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sa.sa_flags = 0;
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@ -42,31 +43,34 @@ static void setsignal (int sig, void (*handler)(int)) {
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sigaction(sig, &sa, NULL);
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}
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/*
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* Hook set by signal function to stop the interpreter.
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*/
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static void lstop (lua_State *L, lua_Debug *ar) {
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static void
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lstop(lua_State *L, lua_Debug *ar)
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{
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(void)ar; /* unused arg. */
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lua_sethook(L, NULL, 0, 0); /* reset hook */
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luaL_error(L, "interrupted!");
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}
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/*
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* Function to be called at a C signal. Because a C signal cannot
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* just change a Lua state (as there is no proper synchronization),
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* this function only sets a hook that, when called, will stop the
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* interpreter.
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*/
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static void laction (int i) {
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static void
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laction(int i)
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{
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int flag = LUA_MASKCALL | LUA_MASKRET | LUA_MASKLINE | LUA_MASKCOUNT;
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setsignal(i, SIG_DFL); /* if another SIGINT happens, terminate process */
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lua_sethook(globalL, lstop, flag, 1);
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}
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static void print_usage (const char *badoption) {
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static void
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print_usage(const char *badoption)
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{
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lua_writestringerror("%s: ", progname);
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if (badoption[1] == 'e' || badoption[1] == 'l')
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lua_writestringerror("'%s' needs argument\n", badoption);
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@ -83,28 +87,30 @@ static void print_usage (const char *badoption) {
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" -E ignore environment variables\n"
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" -W turn warnings on\n"
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" -- stop handling options\n"
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" - stop handling options and execute stdin\n"
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,
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" - stop handling options and execute stdin\n",
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progname);
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}
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/*
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* Prints an error message, adding the program name in front of it
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* (if present)
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*/
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static void l_message (const char *pname, const char *msg) {
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if (pname) lua_writestringerror("%s: ", pname);
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static void
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l_message(const char *pname, const char *msg)
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{
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if (pname)
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lua_writestringerror("%s: ", pname);
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lua_writestringerror("%s\n", msg);
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}
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/*
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* Check whether 'status' is not OK and, if so, prints the error
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* message on the top of the stack. It assumes that the error object
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* is a string, as it was either generated by Lua or by 'msghandler'.
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*/
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static int report (lua_State *L, int status) {
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static int
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report(lua_State *L, int status)
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{
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if (status != LUA_OK) {
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const char *msg = lua_tostring(L, -1);
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l_message(progname, msg);
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@ -113,11 +119,12 @@ static int report (lua_State *L, int status) {
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return status;
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}
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/*
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* Message handler used to run all chunks
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*/
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static int msghandler (lua_State *L) {
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static int
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msghandler(lua_State *L)
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{
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const char *msg = lua_tostring(L, 1);
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if (msg == NULL) { /* is error object not a string? */
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if (luaL_callmeta(L, 1, "__tostring") && /* does it have a metamethod */
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@ -131,12 +138,13 @@ static int msghandler (lua_State *L) {
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return 1; /* return the traceback */
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}
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/*
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* Interface to 'lua_pcall', which sets appropriate message function
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* and C-signal handler. Used to run all chunks.
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*/
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static int docall (lua_State *L, int narg, int nres) {
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static int
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docall(lua_State *L, int narg, int nres)
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{
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int status;
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int base = lua_gettop(L) - narg; /* function index */
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lua_pushcfunction(L, msghandler); /* push message handler */
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@ -149,13 +157,13 @@ static int docall (lua_State *L, int narg, int nres) {
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return status;
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}
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static void print_version (void) {
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static void
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print_version(void)
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{
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lua_writestring(CALLISTO_COPYRIGHT, strlen(CALLISTO_COPYRIGHT));
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lua_writeline();
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}
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/*
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* Create the 'arg' table, which stores all arguments from the
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* command line ('argv'). It should be aligned so that, at index 0,
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@ -164,9 +172,12 @@ static void print_version (void) {
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* other arguments (before the script name) go to negative indices.
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* If there is no script name, assume interpreter's name as base.
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*/
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static void createargtable (lua_State *L, char **argv, int argc, int script) {
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static void
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createargtable(lua_State *L, char **argv, int argc, int script)
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{
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int i, narg;
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if (script == argc) script = 0; /* no script name? */
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if (script == argc)
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script = 0; /* no script name? */
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narg = argc - (script + 1); /* number of positive indices */
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lua_createtable(L, narg, script + 1);
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for (i = 0; i < argc; i++) {
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@ -176,27 +187,32 @@ static void createargtable (lua_State *L, char **argv, int argc, int script) {
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lua_setglobal(L, "arg");
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}
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static int dochunk (lua_State *L, int status) {
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if (status == LUA_OK) status = docall(L, 0, 0);
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static int
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dochunk(lua_State *L, int status)
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{
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if (status == LUA_OK)
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status = docall(L, 0, 0);
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return report(L, status);
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}
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static int dofile (lua_State *L, const char *name) {
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static int
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dofile(lua_State *L, const char *name)
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{
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return dochunk(L, luaL_loadfile(L, name));
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}
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static int dostring (lua_State *L, const char *s, const char *name) {
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static int
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dostring(lua_State *L, const char *s, const char *name)
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{
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return dochunk(L, luaL_loadbuffer(L, s, strlen(s), name));
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}
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/*
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* Receives 'globname[=modname]' and runs 'globname = require(modname)'.
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*/
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static int dolibrary (lua_State *L, char *globname) {
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static int
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dolibrary(lua_State *L, char *globname)
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{
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int status;
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char *modname = strchr(globname, '=');
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if (modname == NULL) /* no explicit name? */
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@ -213,11 +229,12 @@ static int dolibrary (lua_State *L, char *globname) {
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return report(L, status);
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}
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/*
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* Push on the stack the contents of table 'arg' from 1 to #arg
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*/
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static int pushargs (lua_State *L) {
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static int
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pushargs(lua_State *L)
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{
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int i, n;
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if (lua_getglobal(L, "arg") != LUA_TTABLE)
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luaL_error(L, "'arg' is not a table");
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@ -229,8 +246,9 @@ static int pushargs (lua_State *L) {
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return n;
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}
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static int handle_script (lua_State *L, char **argv) {
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static int
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handle_script(lua_State *L, char **argv)
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{
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int status;
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const char *fname = argv[0];
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if (strcmp(fname, "-") == 0 && strcmp(argv[-1], "--") != 0)
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@ -243,7 +261,6 @@ static int handle_script (lua_State *L, char **argv) {
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return report(L, status);
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}
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/* bits of various argument indicators in 'args' */
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#define has_error 1 /* bad option */
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#define has_i 2 /* -i */
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@ -251,14 +268,15 @@ static int handle_script (lua_State *L, char **argv) {
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#define has_e 8 /* -e */
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#define has_E 16 /* -E */
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/*
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* Traverses all arguments from 'argv', returning a mask with those
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* needed before running any Lua code (or an error code if it finds
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* any invalid argument). 'first' returns the first not-handled argument
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* (either the script name or a bad argument in case of error).
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*/
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static int collectargs (char **argv, int *first) {
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static int
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collectargs(char **argv, int *first)
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{
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int args = 0;
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int i;
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for (i = 1; argv[i] != NULL; i++) {
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@ -283,7 +301,7 @@ static int collectargs (char **argv, int *first) {
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return has_error; /* invalid option */
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break;
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case 'i':
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args |= has_i; /* (-i implies -v) *//* FALLTHROUGH */
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args |= has_i; /* (-i implies -v) */ /* FALLTHROUGH */
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case 'v':
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if (argv[i][2] != '\0') /* extra characters? */
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return has_error; /* invalid option */
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@ -306,27 +324,30 @@ static int collectargs (char **argv, int *first) {
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return args;
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}
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/*
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* Processes options 'e' and 'l', which involve running Lua code, and
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* 'W', which also affects the state.
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* Returns 0 if some code raises an error.
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*/
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static int runargs (lua_State *L, char **argv, int n) {
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static int
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runargs(lua_State *L, char **argv, int n)
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{
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int i;
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for (i = 1; i < n; i++) {
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int option = argv[i][1];
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lua_assert(argv[i][0] == '-'); /* already checked */
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switch (option) {
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case 'e': case 'l': {
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case 'e':
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case 'l': {
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int status;
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char *extra = argv[i] + 2; /* both options need an argument */
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if (*extra == '\0') extra = argv[++i];
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if (*extra == '\0')
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extra = argv[++i];
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lua_assert(extra != NULL);
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status = (option == 'e')
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? dostring(L, extra, "=(command line)")
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status = (option == 'e') ? dostring(L, extra, "=(command line)")
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: dolibrary(L, extra);
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if (status != LUA_OK) return 0;
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if (status != LUA_OK)
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return 0;
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break;
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}
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case 'W':
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@ -337,22 +358,23 @@ static int runargs (lua_State *L, char **argv, int n) {
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return 1;
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}
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static int handle_luainit (lua_State *L) {
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static int
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handle_luainit(lua_State *L)
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{
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const char *name = "=" LUA_INITVARVERSION;
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const char *init = getenv(name + 1);
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if (init == NULL) {
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name = "=" LUA_INIT_VAR;
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init = getenv(name + 1); /* try alternative name */
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}
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if (init == NULL) return LUA_OK;
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if (init == NULL)
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return LUA_OK;
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else if (init[0] == '@')
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return dofile(L, init+1);
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return dofile(L, init + 1);
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else
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return dostring(L, init, name);
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}
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/*
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* {==================================================================
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* Read-Eval-Print Loop (REPL)
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@ -368,7 +390,6 @@ static int handle_luainit (lua_State *L) {
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#define LUA_MAXINPUT 512
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#endif
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/*
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* lua_stdin_is_tty detects whether the standard input is a 'tty' (that
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* is, whether we're running lua interactively).
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@ -379,7 +400,6 @@ static int handle_luainit (lua_State *L) {
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#endif /* } */
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/*
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* lua_readline defines how to show a prompt and then read a line from
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* the standard input.
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@ -390,12 +410,12 @@ static int handle_luainit (lua_State *L) {
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#if defined(LUA_USE_READLINE) /* { */
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#include <readline/readline.h>
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#include <readline/history.h>
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#define lua_initreadline(L) ((void)L, rl_readline_name="lua")
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#define lua_readline(L,b,p) ((void)L, ((b)=readline(p)) != NULL)
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#define lua_saveline(L,line) ((void)L, add_history(line))
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#define lua_freeline(L,b) ((void)L, free(b))
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#include <readline/readline.h>
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#define lua_initreadline(L) ((void)L, rl_readline_name = "lua")
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#define lua_readline(L, b, p) ((void)L, ((b) = readline(p)) != NULL)
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#define lua_saveline(L, line) ((void)L, add_history(line))
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#define lua_freeline(L, b) ((void)L, free(b))
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#else /* }{ */
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@ -414,13 +434,14 @@ static int handle_luainit (lua_State *L) {
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#endif /* } */
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/*
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* Return the string to be used as a prompt by the interpreter. Leave
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* the string (or nil, if using the default value) on the stack, to keep
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* it anchored.
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*/
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static const char *get_prompt (lua_State *L, int firstline) {
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static const char *
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get_prompt(lua_State *L, int firstline)
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{
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if (lua_getglobal(L, firstline ? "_PROMPT" : "_PROMPT2") == LUA_TNIL)
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return (firstline ? LUA_PROMPT : LUA_PROMPT2); /* use the default */
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else { /* apply 'tostring' over the value */
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@ -432,15 +453,16 @@ static const char *get_prompt (lua_State *L, int firstline) {
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/* mark in error messages for incomplete statements */
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#define EOFMARK "<eof>"
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#define marklen (sizeof(EOFMARK)/sizeof(char) - 1)
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#define marklen (sizeof(EOFMARK) / sizeof(char) - 1)
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/*
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* Check whether 'status' signals a syntax error and the error
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* message at the top of the stack ends with the above mark for
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* incomplete statements.
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*/
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static int incomplete (lua_State *L, int status) {
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static int
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incomplete(lua_State *L, int status)
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{
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if (status == LUA_ERRSYNTAX) {
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size_t lmsg;
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const char *msg = lua_tolstring(L, -1, &lmsg);
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@ -452,11 +474,12 @@ static int incomplete (lua_State *L, int status) {
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return 0; /* else... */
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}
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/*
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* Prompt the user, read a line, and push it into the Lua stack.
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*/
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static int pushline (lua_State *L, int firstline) {
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static int
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pushline(lua_State *L, int firstline)
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{
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char buffer[LUA_MAXINPUT];
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char *b = buffer;
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size_t l;
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@ -466,7 +489,7 @@ static int pushline (lua_State *L, int firstline) {
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return 0; /* no input (prompt will be popped by caller) */
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lua_pop(L, 1); /* remove prompt */
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l = strlen(b);
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if (l > 0 && b[l-1] == '\n') /* line ends with newline? */
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if (l > 0 && b[l - 1] == '\n') /* line ends with newline? */
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b[--l] = '\0'; /* remove it */
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if (firstline && b[0] == '=') /* for compatibility with 5.2, ... */
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lua_pushfstring(L, "return %s", b + 1); /* change '=' to 'return' */
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@ -476,12 +499,13 @@ static int pushline (lua_State *L, int firstline) {
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return 1;
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}
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||||
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/*
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||||
* Try to compile line on the stack as 'return <line>;'; on return, stack
|
||||
* has either compiled chunk or original line (if compilation failed).
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||||
*/
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||||
static int addreturn (lua_State *L) {
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static int
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addreturn(lua_State *L)
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||||
{
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const char *line = lua_tostring(L, -1); /* original line */
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const char *retline = lua_pushfstring(L, "return %s;", line);
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int status = luaL_loadbuffer(L, retline, strlen(retline), "=stdin");
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@ -489,17 +513,17 @@ static int addreturn (lua_State *L) {
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lua_remove(L, -2); /* remove modified line */
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if (line[0] != '\0') /* non empty? */
|
||||
lua_saveline(L, line); /* keep history */
|
||||
}
|
||||
else
|
||||
} else
|
||||
lua_pop(L, 2); /* pop result from 'luaL_loadbuffer' and modified line */
|
||||
return status;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Read multiple lines until a complete Lua statement
|
||||
*/
|
||||
static int multiline (lua_State *L) {
|
||||
static int
|
||||
multiline(lua_State *L)
|
||||
{
|
||||
for (;;) { /* repeat until gets a complete statement */
|
||||
size_t len;
|
||||
const char *line = lua_tolstring(L, 1, &len); /* get what it has */
|
||||
|
|
@ -514,14 +538,15 @@ static int multiline (lua_State *L) {
|
|||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Read a line and try to load (compile) it first as an expression (by
|
||||
* adding "return " in front of it) and second as a statement. Return
|
||||
* the final status of load/call with the resulting function (if any)
|
||||
* in the top of the stack.
|
||||
*/
|
||||
static int loadline (lua_State *L) {
|
||||
static int
|
||||
loadline(lua_State *L)
|
||||
{
|
||||
int status;
|
||||
lua_settop(L, 0);
|
||||
if (!pushline(L, 1))
|
||||
|
|
@ -533,28 +558,31 @@ static int loadline (lua_State *L) {
|
|||
return status;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Prints (calling the Lua 'print' function) any values on the stack
|
||||
*/
|
||||
static void l_print (lua_State *L) {
|
||||
static void
|
||||
l_print(lua_State *L)
|
||||
{
|
||||
int n = lua_gettop(L);
|
||||
if (n > 0) { /* any result to be printed? */
|
||||
luaL_checkstack(L, LUA_MINSTACK, "too many results to print");
|
||||
lua_getglobal(L, "print");
|
||||
lua_insert(L, 1);
|
||||
if (lua_pcall(L, n, 0, 0) != LUA_OK)
|
||||
l_message(progname, lua_pushfstring(L, "error calling 'print' (%s)",
|
||||
l_message(progname,
|
||||
lua_pushfstring(L, "error calling 'print' (%s)",
|
||||
lua_tostring(L, -1)));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Do the REPL: repeatedly read (load) a line, evaluate (call) it, and
|
||||
* print any results.
|
||||
*/
|
||||
static void doREPL (lua_State *L) {
|
||||
static void
|
||||
doREPL(lua_State *L)
|
||||
{
|
||||
int status;
|
||||
const char *oldprogname = progname;
|
||||
progname = NULL; /* no 'progname' on errors in interactive mode */
|
||||
|
|
@ -562,8 +590,10 @@ static void doREPL (lua_State *L) {
|
|||
while ((status = loadline(L)) != -1) {
|
||||
if (status == LUA_OK)
|
||||
status = docall(L, 0, LUA_MULTRET);
|
||||
if (status == LUA_OK) l_print(L);
|
||||
else report(L, status);
|
||||
if (status == LUA_OK)
|
||||
l_print(L);
|
||||
else
|
||||
report(L, status);
|
||||
}
|
||||
lua_settop(L, 0); /* clear stack */
|
||||
lua_writeline();
|
||||
|
|
@ -572,18 +602,20 @@ static void doREPL (lua_State *L) {
|
|||
|
||||
/* }================================================================== */
|
||||
|
||||
|
||||
/*
|
||||
* Main body of stand-alone interpreter (to be called in protected mode).
|
||||
* Reads the options and handles them all.
|
||||
*/
|
||||
static int pmain (lua_State *L) {
|
||||
static int
|
||||
pmain(lua_State *L)
|
||||
{
|
||||
int argc = (int)lua_tointeger(L, 1);
|
||||
char **argv = (char **)lua_touserdata(L, 2);
|
||||
int script;
|
||||
int args = collectargs(argv, &script);
|
||||
luaL_checkversion(L); /* check that interpreter has correct version */
|
||||
if (argv[0] && argv[0][0]) progname = argv[0];
|
||||
if (argv[0] && argv[0][0])
|
||||
progname = argv[0];
|
||||
if (args == has_error) { /* bad arg? */
|
||||
print_usage(argv[script]); /* 'script' has index of bad arg. */
|
||||
return 0;
|
||||
|
|
@ -611,15 +643,16 @@ static int pmain (lua_State *L) {
|
|||
if (lua_stdin_is_tty()) { /* running in interactive mode? */
|
||||
print_version();
|
||||
doREPL(L); /* do read-eval-print loop */
|
||||
}
|
||||
else dofile(L, NULL); /* executes stdin as a file */
|
||||
} else
|
||||
dofile(L, NULL); /* executes stdin as a file */
|
||||
}
|
||||
lua_pushboolean(L, 1); /* signal no errors */
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
int main (int argc, char **argv) {
|
||||
int
|
||||
main(int argc, char **argv)
|
||||
{
|
||||
int status, result;
|
||||
lua_State *L = callisto_newstate(); /* create state */
|
||||
if (L == NULL) {
|
||||
|
|
@ -635,4 +668,3 @@ int main (int argc, char **argv) {
|
|||
lua_close(L);
|
||||
return (result && status == LUA_OK) ? EXIT_SUCCESS : EXIT_FAILURE;
|
||||
}
|
||||
|
||||
|
|
|
|||
6
lcl.c
6
lcl.c
|
|
@ -29,7 +29,8 @@ fmesgshift(lua_State *L, int fd, int shift)
|
|||
|
||||
lua_getglobal(L, "arg");
|
||||
if (!lua_istable(L, -1)) {
|
||||
luaL_error(L, "arg table not present/inaccessible; cannot get script name");
|
||||
luaL_error(L,
|
||||
"arg table not present/inaccessible; cannot get script name");
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
@ -246,7 +247,8 @@ cl_options(lua_State *L)
|
|||
}
|
||||
|
||||
if (optstring[0] == ':')
|
||||
return luaL_argerror(L, 2, "option string must not start with a colon (:)");
|
||||
return luaL_argerror(L, 2,
|
||||
"option string must not start with a colon (:)");
|
||||
|
||||
strprepend(optstring, ":");
|
||||
|
||||
|
|
|
|||
1
ljson.c
1
ljson.c
|
|
@ -217,7 +217,6 @@ local t = json.decode(j)
|
|||
* sparse; *>1*: use ratio
|
||||
*/
|
||||
|
||||
|
||||
int luaopen_cjson(lua_State *);
|
||||
|
||||
int
|
||||
|
|
|
|||
6
util.c
6
util.c
|
|
@ -65,7 +65,7 @@ strbcat(char *dst, const char *src, size_t dsize)
|
|||
n = dsize - dlen;
|
||||
|
||||
if (n-- == 0)
|
||||
return(dlen + strlen(src));
|
||||
return (dlen + strlen(src));
|
||||
while (*src != '\0') {
|
||||
if (n != 0) {
|
||||
*dst++ = *src;
|
||||
|
|
@ -75,7 +75,7 @@ strbcat(char *dst, const char *src, size_t dsize)
|
|||
}
|
||||
*dst = '\0';
|
||||
|
||||
return(dlen + (src - osrc)); /* count does not include NUL */
|
||||
return (dlen + (src - osrc)); /* count does not include NUL */
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -105,7 +105,7 @@ strbcpy(char *dst, const char *src, size_t dsize)
|
|||
;
|
||||
}
|
||||
|
||||
return(src - osrc - 1); /* count does not include NUL */
|
||||
return (src - osrc - 1); /* count does not include NUL */
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue