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/*
* jimsh - An interactive shell for Jim
*
* Copyright 2005 Salvatore Sanfilippo <antirez@invece.org>
* Copyright 2009 Steve Bennett <steveb@workware.net.au>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE JIM TCL PROJECT ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* JIM TCL PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation
* are those of the authors and should not be interpreted as representing
* official policies, either expressed or implied, of the Jim Tcl Project.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "jim.h"
#include "jimautoconf.h"
/* From initjimsh.tcl */
extern int Jim_initjimshInit(Jim_Interp *interp);
static void JimSetArgv(Jim_Interp *interp, int argc, char *const argv[])
{
int n;
Jim_Obj *listObj = Jim_NewListObj(interp, NULL, 0);
/* Populate argv global var */
for (n = 0; n < argc; n++) {
Jim_Obj *obj = Jim_NewStringObj(interp, argv[n], -1);
Jim_ListAppendElement(interp, listObj, obj);
}
Jim_SetVariableStr(interp, "argv", listObj);
Jim_SetVariableStr(interp, "argc", Jim_NewIntObj(interp, argc));
}
static void JimPrintErrorMessage(Jim_Interp *interp)
{
Jim_MakeErrorMessage(interp);
fprintf(stderr, "%s\n", Jim_String(Jim_GetResult(interp)));
}
void usage(const char* executable_name)
{
printf("jimsh version %d.%d\n", JIM_VERSION / 100, JIM_VERSION % 100);
printf("Usage: %s\n", executable_name);
printf("or : %s [options] [filename]\n", executable_name);
printf("\n");
printf("Without options: Interactive mode\n");
printf("\n");
printf("Options:\n");
printf(" --version : prints the version string\n");
printf(" --help : prints this text\n");
printf(" -e CMD : executes command CMD\n");
printf(" NOTE: all subsequent options will be passed as arguments to the command\n");
printf(" [filename|-] : executes the script contained in the named file, or from stdin if \"-\"\n");
printf(" NOTE: all subsequent options will be passed to the script\n\n");
}
int main(int argc, char *const argv[])
{
int retcode;
Jim_Interp *interp;
char *const orig_argv0 = argv[0];
/* Parse initial arguments before interpreter is started */
if (argc > 1 && strcmp(argv[1], "--version") == 0) {
printf("%d.%d\n", JIM_VERSION / 100, JIM_VERSION % 100);
return 0;
}
else if (argc > 1 && strcmp(argv[1], "--help") == 0) {
usage(argv[0]);
return 0;
}
/* Create and initialize the interpreter */
interp = Jim_CreateInterp();
Jim_RegisterCoreCommands(interp);
/* Register static extensions */
if (Jim_InitStaticExtensions(interp) != JIM_OK) {
JimPrintErrorMessage(interp);
}
Jim_SetVariableStrWithStr(interp, "jim::argv0", orig_argv0);
Jim_SetVariableStrWithStr(interp, JIM_INTERACTIVE, argc == 1 ? "1" : "0");
retcode = Jim_initjimshInit(interp);
if (argc == 1) {
/* Executable name is the only argument - start interactive prompt */
if (retcode == JIM_ERR) {
JimPrintErrorMessage(interp);
}
if (retcode != JIM_EXIT) {
JimSetArgv(interp, 0, NULL);
retcode = Jim_InteractivePrompt(interp);
}
}
else {
/* Additional arguments - interpret them */
if (argc > 2 && strcmp(argv[1], "-e") == 0) {
/* Evaluate code in subsequent argument */
JimSetArgv(interp, argc - 3, argv + 3);
retcode = Jim_Eval(interp, argv[2]);
if (retcode != JIM_ERR) {
int len;
const char *msg = Jim_GetString(Jim_GetResult(interp), &len);
if (fwrite(msg, len, 1, stdout) == 0) {
/* nothing */
}
putchar('\n');
}
}
else {
Jim_SetVariableStr(interp, "argv0", Jim_NewStringObj(interp, argv[1], -1));
JimSetArgv(interp, argc - 2, argv + 2);
if (strcmp(argv[1], "-") == 0) {
retcode = Jim_Eval(interp, "eval [info source [stdin read] stdin 1]");
} else {
retcode = Jim_EvalFile(interp, argv[1]);
}
}
if (retcode == JIM_ERR) {
JimPrintErrorMessage(interp);
}
}
if (retcode == JIM_EXIT) {
retcode = Jim_GetExitCode(interp);
}
else if (retcode == JIM_ERR) {
retcode = 1;
}
else {
retcode = 0;
}
Jim_FreeInterp(interp);
return retcode;
}
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