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-rw-r--r--debian/vendor-h2o/deps/mruby/mrbgems/mruby-bin-mirb/tools/mirb/mirb.c584
1 files changed, 0 insertions, 584 deletions
diff --git a/debian/vendor-h2o/deps/mruby/mrbgems/mruby-bin-mirb/tools/mirb/mirb.c b/debian/vendor-h2o/deps/mruby/mrbgems/mruby-bin-mirb/tools/mirb/mirb.c
deleted file mode 100644
index fe311d8..0000000
--- a/debian/vendor-h2o/deps/mruby/mrbgems/mruby-bin-mirb/tools/mirb/mirb.c
+++ /dev/null
@@ -1,584 +0,0 @@
-/*
-** mirb - Embeddable Interactive Ruby Shell
-**
-** This program takes code from the user in
-** an interactive way and executes it
-** immediately. It's a REPL...
-*/
-
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <ctype.h>
-
-#include <signal.h>
-#include <setjmp.h>
-
-#ifdef ENABLE_READLINE
-#include <readline/readline.h>
-#include <readline/history.h>
-#define MIRB_ADD_HISTORY(line) add_history(line)
-#define MIRB_READLINE(ch) readline(ch)
-#define MIRB_WRITE_HISTORY(path) write_history(path)
-#define MIRB_READ_HISTORY(path) read_history(path)
-#define MIRB_USING_HISTORY() using_history()
-#elif defined(ENABLE_LINENOISE)
-#define ENABLE_READLINE
-#include <linenoise.h>
-#define MIRB_ADD_HISTORY(line) linenoiseHistoryAdd(line)
-#define MIRB_READLINE(ch) linenoise(ch)
-#define MIRB_WRITE_HISTORY(path) linenoiseHistorySave(path)
-#define MIRB_READ_HISTORY(path) linenoiseHistoryLoad(history_path)
-#define MIRB_USING_HISTORY()
-#endif
-
-#ifndef _WIN32
-#define MIRB_SIGSETJMP(env) sigsetjmp(env, 1)
-#define MIRB_SIGLONGJMP(env, val) siglongjmp(env, val)
-#define SIGJMP_BUF sigjmp_buf
-#else
-#define MIRB_SIGSETJMP(env) setjmp(env)
-#define MIRB_SIGLONGJMP(env, val) longjmp(env, val)
-#define SIGJMP_BUF jmp_buf
-#endif
-
-#include <mruby.h>
-#include <mruby/array.h>
-#include <mruby/proc.h>
-#include <mruby/compile.h>
-#include <mruby/string.h>
-
-#ifdef ENABLE_READLINE
-
-static const char history_file_name[] = ".mirb_history";
-
-static char *
-get_history_path(mrb_state *mrb)
-{
- char *path = NULL;
- const char *home = getenv("HOME");
-
-#ifdef _WIN32
- if (home != NULL) {
- home = getenv("USERPROFILE");
- }
-#endif
-
- if (home != NULL) {
- int len = snprintf(NULL, 0, "%s/%s", home, history_file_name);
- if (len >= 0) {
- size_t size = len + 1;
- path = (char *)mrb_malloc_simple(mrb, size);
- if (path != NULL) {
- int n = snprintf(path, size, "%s/%s", home, history_file_name);
- if (n != len) {
- mrb_free(mrb, path);
- path = NULL;
- }
- }
- }
- }
-
- return path;
-}
-
-#endif
-
-static void
-p(mrb_state *mrb, mrb_value obj, int prompt)
-{
- mrb_value val;
-
- val = mrb_funcall(mrb, obj, "inspect", 0);
- if (prompt) {
- if (!mrb->exc) {
- fputs(" => ", stdout);
- }
- else {
- val = mrb_funcall(mrb, mrb_obj_value(mrb->exc), "inspect", 0);
- }
- }
- if (!mrb_string_p(val)) {
- val = mrb_obj_as_string(mrb, obj);
- }
- fwrite(RSTRING_PTR(val), RSTRING_LEN(val), 1, stdout);
- putc('\n', stdout);
-}
-
-/* Guess if the user might want to enter more
- * or if he wants an evaluation of his code now */
-static mrb_bool
-is_code_block_open(struct mrb_parser_state *parser)
-{
- mrb_bool code_block_open = FALSE;
-
- /* check for heredoc */
- if (parser->parsing_heredoc != NULL) return TRUE;
- if (parser->heredoc_end_now) {
- parser->heredoc_end_now = FALSE;
- return FALSE;
- }
-
- /* check for unterminated string */
- if (parser->lex_strterm) return TRUE;
-
- /* check if parser error are available */
- if (0 < parser->nerr) {
- const char unexpected_end[] = "syntax error, unexpected $end";
- const char *message = parser->error_buffer[0].message;
-
- /* a parser error occur, we have to check if */
- /* we need to read one more line or if there is */
- /* a different issue which we have to show to */
- /* the user */
-
- if (strncmp(message, unexpected_end, sizeof(unexpected_end) - 1) == 0) {
- code_block_open = TRUE;
- }
- else if (strcmp(message, "syntax error, unexpected keyword_end") == 0) {
- code_block_open = FALSE;
- }
- else if (strcmp(message, "syntax error, unexpected tREGEXP_BEG") == 0) {
- code_block_open = FALSE;
- }
- return code_block_open;
- }
-
- switch (parser->lstate) {
-
- /* all states which need more code */
-
- case EXPR_BEG:
- /* beginning of a statement, */
- /* that means previous line ended */
- code_block_open = FALSE;
- break;
- case EXPR_DOT:
- /* a message dot was the last token, */
- /* there has to come more */
- code_block_open = TRUE;
- break;
- case EXPR_CLASS:
- /* a class keyword is not enough! */
- /* we need also a name of the class */
- code_block_open = TRUE;
- break;
- case EXPR_FNAME:
- /* a method name is necessary */
- code_block_open = TRUE;
- break;
- case EXPR_VALUE:
- /* if, elsif, etc. without condition */
- code_block_open = TRUE;
- break;
-
- /* now all the states which are closed */
-
- case EXPR_ARG:
- /* an argument is the last token */
- code_block_open = FALSE;
- break;
-
- /* all states which are unsure */
-
- case EXPR_CMDARG:
- break;
- case EXPR_END:
- /* an expression was ended */
- break;
- case EXPR_ENDARG:
- /* closing parenthese */
- break;
- case EXPR_ENDFN:
- /* definition end */
- break;
- case EXPR_MID:
- /* jump keyword like break, return, ... */
- break;
- case EXPR_MAX_STATE:
- /* don't know what to do with this token */
- break;
- default:
- /* this state is unexpected! */
- break;
- }
-
- return code_block_open;
-}
-
-struct _args {
- FILE *rfp;
- mrb_bool verbose : 1;
- int argc;
- char** argv;
-};
-
-static void
-usage(const char *name)
-{
- static const char *const usage_msg[] = {
- "switches:",
- "-v print version number, then run in verbose mode",
- "--verbose run in verbose mode",
- "--version print the version",
- "--copyright print the copyright",
- NULL
- };
- const char *const *p = usage_msg;
-
- printf("Usage: %s [switches]\n", name);
- while (*p)
- printf(" %s\n", *p++);
-}
-
-static int
-parse_args(mrb_state *mrb, int argc, char **argv, struct _args *args)
-{
- static const struct _args args_zero = { 0 };
-
- *args = args_zero;
-
- for (argc--,argv++; argc > 0; argc--,argv++) {
- char *item;
- if (argv[0][0] != '-') break;
-
- item = argv[0] + 1;
- switch (*item++) {
- case 'v':
- if (!args->verbose) mrb_show_version(mrb);
- args->verbose = TRUE;
- break;
- case '-':
- if (strcmp((*argv) + 2, "version") == 0) {
- mrb_show_version(mrb);
- exit(EXIT_SUCCESS);
- }
- else if (strcmp((*argv) + 2, "verbose") == 0) {
- args->verbose = TRUE;
- break;
- }
- else if (strcmp((*argv) + 2, "copyright") == 0) {
- mrb_show_copyright(mrb);
- exit(EXIT_SUCCESS);
- }
- default:
- return EXIT_FAILURE;
- }
- }
-
- if (args->rfp == NULL) {
- if (*argv != NULL) {
- args->rfp = fopen(argv[0], "r");
- if (args->rfp == NULL) {
- printf("Cannot open program file. (%s)\n", *argv);
- return EXIT_FAILURE;
- }
- argc--; argv++;
- }
- }
- args->argv = (char **)mrb_realloc(mrb, args->argv, sizeof(char*) * (argc + 1));
- memcpy(args->argv, argv, (argc+1) * sizeof(char*));
- args->argc = argc;
-
- return EXIT_SUCCESS;
-}
-
-static void
-cleanup(mrb_state *mrb, struct _args *args)
-{
- if (args->rfp)
- fclose(args->rfp);
- mrb_free(mrb, args->argv);
- mrb_close(mrb);
-}
-
-/* Print a short remark for the user */
-static void
-print_hint(void)
-{
- printf("mirb - Embeddable Interactive Ruby Shell\n\n");
-}
-
-#ifndef ENABLE_READLINE
-/* Print the command line prompt of the REPL */
-static void
-print_cmdline(int code_block_open)
-{
- if (code_block_open) {
- printf("* ");
- }
- else {
- printf("> ");
- }
- fflush(stdout);
-}
-#endif
-
-void mrb_codedump_all(mrb_state*, struct RProc*);
-
-static int
-check_keyword(const char *buf, const char *word)
-{
- const char *p = buf;
- size_t len = strlen(word);
-
- /* skip preceding spaces */
- while (*p && isspace((unsigned char)*p)) {
- p++;
- }
- /* check keyword */
- if (strncmp(p, word, len) != 0) {
- return 0;
- }
- p += len;
- /* skip trailing spaces */
- while (*p) {
- if (!isspace((unsigned char)*p)) return 0;
- p++;
- }
- return 1;
-}
-
-
-#ifndef ENABLE_READLINE
-volatile sig_atomic_t input_canceled = 0;
-void
-ctrl_c_handler(int signo)
-{
- input_canceled = 1;
-}
-#else
-SIGJMP_BUF ctrl_c_buf;
-void
-ctrl_c_handler(int signo)
-{
- MIRB_SIGLONGJMP(ctrl_c_buf, 1);
-}
-#endif
-
-int
-main(int argc, char **argv)
-{
- char ruby_code[4096] = { 0 };
- char last_code_line[1024] = { 0 };
-#ifndef ENABLE_READLINE
- int last_char;
- size_t char_index;
-#else
- char *history_path;
- char* line;
-#endif
- mrbc_context *cxt;
- struct mrb_parser_state *parser;
- mrb_state *mrb;
- mrb_value result;
- struct _args args;
- mrb_value ARGV;
- int n;
- int i;
- mrb_bool code_block_open = FALSE;
- int ai;
- unsigned int stack_keep = 0;
-
- /* new interpreter instance */
- mrb = mrb_open();
- if (mrb == NULL) {
- fputs("Invalid mrb interpreter, exiting mirb\n", stderr);
- return EXIT_FAILURE;
- }
-
- n = parse_args(mrb, argc, argv, &args);
- if (n == EXIT_FAILURE) {
- cleanup(mrb, &args);
- usage(argv[0]);
- return n;
- }
-
- ARGV = mrb_ary_new_capa(mrb, args.argc);
- for (i = 0; i < args.argc; i++) {
- char* utf8 = mrb_utf8_from_locale(args.argv[i], -1);
- if (utf8) {
- mrb_ary_push(mrb, ARGV, mrb_str_new_cstr(mrb, utf8));
- mrb_utf8_free(utf8);
- }
- }
- mrb_define_global_const(mrb, "ARGV", ARGV);
-
-#ifdef ENABLE_READLINE
- history_path = get_history_path(mrb);
- if (history_path == NULL) {
- fputs("failed to get history path\n", stderr);
- mrb_close(mrb);
- return EXIT_FAILURE;
- }
-
- MIRB_USING_HISTORY();
- MIRB_READ_HISTORY(history_path);
-#endif
-
- print_hint();
-
- cxt = mrbc_context_new(mrb);
- cxt->capture_errors = TRUE;
- cxt->lineno = 1;
- mrbc_filename(mrb, cxt, "(mirb)");
- if (args.verbose) cxt->dump_result = TRUE;
-
- ai = mrb_gc_arena_save(mrb);
-
- while (TRUE) {
- char *utf8;
-
- if (args.rfp) {
- if (fgets(last_code_line, sizeof(last_code_line)-1, args.rfp) != NULL)
- goto done;
- break;
- }
-
-#ifndef ENABLE_READLINE
- print_cmdline(code_block_open);
-
- signal(SIGINT, ctrl_c_handler);
- char_index = 0;
- while ((last_char = getchar()) != '\n') {
- if (last_char == EOF) break;
- if (char_index >= sizeof(last_code_line)-2) {
- fputs("input string too long\n", stderr);
- continue;
- }
- last_code_line[char_index++] = last_char;
- }
- signal(SIGINT, SIG_DFL);
- if (input_canceled) {
- ruby_code[0] = '\0';
- last_code_line[0] = '\0';
- code_block_open = FALSE;
- puts("^C");
- input_canceled = 0;
- continue;
- }
- if (last_char == EOF) {
- fputs("\n", stdout);
- break;
- }
-
- last_code_line[char_index++] = '\n';
- last_code_line[char_index] = '\0';
-#else
- if (MIRB_SIGSETJMP(ctrl_c_buf) == 0) {
- ;
- }
- else {
- ruby_code[0] = '\0';
- last_code_line[0] = '\0';
- code_block_open = FALSE;
- puts("^C");
- }
- signal(SIGINT, ctrl_c_handler);
- line = MIRB_READLINE(code_block_open ? "* " : "> ");
- signal(SIGINT, SIG_DFL);
-
- if (line == NULL) {
- printf("\n");
- break;
- }
- if (strlen(line) > sizeof(last_code_line)-2) {
- fputs("input string too long\n", stderr);
- continue;
- }
- strcpy(last_code_line, line);
- strcat(last_code_line, "\n");
- MIRB_ADD_HISTORY(line);
- free(line);
-#endif
-
-done:
-
- if (code_block_open) {
- if (strlen(ruby_code)+strlen(last_code_line) > sizeof(ruby_code)-1) {
- fputs("concatenated input string too long\n", stderr);
- continue;
- }
- strcat(ruby_code, last_code_line);
- }
- else {
- if (check_keyword(last_code_line, "quit") || check_keyword(last_code_line, "exit")) {
- break;
- }
- strcpy(ruby_code, last_code_line);
- }
-
- utf8 = mrb_utf8_from_locale(ruby_code, -1);
- if (!utf8) abort();
-
- /* parse code */
- parser = mrb_parser_new(mrb);
- if (parser == NULL) {
- fputs("create parser state error\n", stderr);
- break;
- }
- parser->s = utf8;
- parser->send = utf8 + strlen(utf8);
- parser->lineno = cxt->lineno;
- mrb_parser_parse(parser, cxt);
- code_block_open = is_code_block_open(parser);
- mrb_utf8_free(utf8);
-
- if (code_block_open) {
- /* no evaluation of code */
- }
- else {
- if (0 < parser->nerr) {
- /* syntax error */
- printf("line %d: %s\n", parser->error_buffer[0].lineno, parser->error_buffer[0].message);
- }
- else {
- /* generate bytecode */
- struct RProc *proc = mrb_generate_code(mrb, parser);
- if (proc == NULL) {
- fputs("codegen error\n", stderr);
- mrb_parser_free(parser);
- break;
- }
-
- if (args.verbose) {
- mrb_codedump_all(mrb, proc);
- }
- /* pass a proc for evaluation */
- /* evaluate the bytecode */
- result = mrb_vm_run(mrb,
- proc,
- mrb_top_self(mrb),
- stack_keep);
- stack_keep = proc->body.irep->nlocals;
- /* did an exception occur? */
- if (mrb->exc) {
- p(mrb, mrb_obj_value(mrb->exc), 0);
- mrb->exc = 0;
- }
- else {
- /* no */
- if (!mrb_respond_to(mrb, result, mrb_intern_lit(mrb, "inspect"))){
- result = mrb_any_to_s(mrb, result);
- }
- p(mrb, result, 1);
- }
- }
- ruby_code[0] = '\0';
- last_code_line[0] = '\0';
- mrb_gc_arena_restore(mrb, ai);
- }
- mrb_parser_free(parser);
- cxt->lineno++;
- }
-
-#ifdef ENABLE_READLINE
- MIRB_WRITE_HISTORY(history_path);
- mrb_free(mrb, history_path);
-#endif
-
- mrbc_context_free(mrb, cxt);
- mrb_close(mrb);
-
- return 0;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-24 23:53:23 +0000