src/main.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35

#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <readline/readline.h>
#include <readline/history.h>
#include <string.h>

#include "config.h"
#include "syntax.h"
#include "stages.h"
#include "utils.h"


void execute_string_line(char *line, ShellState *shstate) {
    int pgid = -1;
    Ast ast = lex(line);
    PipelineTree pltree = process_ast(*ast.root, shstate);
    execute_command_pipeline(*pltree.root, STDIN_CHA, STDOUT_CHA, true, &pgid, shstate);
}


int main() {
    signal(SIGTTIN, SIG_IGN);
    signal(SIGTTOU, SIG_IGN);
    ShellState shstate = {.shell_vars = make_KeyValMap(256), .aliases = make_KeyValMap(256)};
    source_script(RCFILENAME, &shstate);
    char* line;
    while (1) {
        line = readline("$ ");
        if (line[0] == '\0') continue;  
        add_history(line);
        execute_string_line(line, &shstate);
    }
    free(line);
}