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