diff options
Diffstat (limited to 'src/eval.cc')
| -rw-r--r-- | src/eval.cc | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/src/eval.cc b/src/eval.cc index 9c0210d..0192ab7 100644 --- a/src/eval.cc +++ b/src/eval.cc @@ -44,6 +44,8 @@ int eval_exe(string s, bool is_aync) } parseline(cmdline, argv); + if (argv == nullptr || argv[0] == nullptr) return 0; + if (exe_bultin_command(argv)) return 0; // block_io signals can stop shell @@ -113,12 +115,19 @@ int eval_exe(string s, bool is_aync) sigprocmask(SIG_SETMASK, &prev_with_sigchld_blocked, NULL); waitfg(pid); sigprocmask(SIG_SETMASK, &prev, NULL); + + return exit_code; } else // background { addjob(pid, BG, cmdline); sigprocmask(SIG_SETMASK, &prev, NULL); cout << "[" << pid2jid(pid) << "] (" << pid << ") " << cmdline; + + // POSIX: + // async command returns 0 immediately + // TODO: recurring async + return 0; } @@ -126,23 +135,31 @@ int eval_exe(string s, bool is_aync) return 0; } -void eval_tree_cd(size_t i, const T_lexer &lexer_instance) +int eval_tree_cd(size_t i, const T_lexer &lexer_instance) { // TODO: async + + int ret = -1; + if (lexer_instance.ast[i].token_type == TEXT) { - eval_exe(lexer_instance.ast[i].command_text, false); - return; + ret = eval_exe(lexer_instance.ast[i].command_text, false); + return ret; } + if (lexer_instance.ast[i].left != string::npos) { - eval_tree_cd(lexer_instance.ast[i].left, lexer_instance); + ret = eval_tree_cd(lexer_instance.ast[i].left, lexer_instance); } if (lexer_instance.ast[i].right != string::npos) { - eval_tree_cd(lexer_instance.ast[i].right, lexer_instance); + if (lexer_instance.ast[i].token_type == LOGIC_AND && ret != 0) return ret; + if (lexer_instance.ast[i].token_type == LOGIC_OR && ret == 0) return ret; + + ret = eval_tree_cd(lexer_instance.ast[i].right, lexer_instance); } + return ret; } /* |