Add input command for unix

1 files changed, 84 insertions, 0 deletions

diff --git a/unix/input.c b/unix/input.c
new file mode 100644
index 0000000000..0774503d90
--- /dev/null
+++ b/unix/input.c
@@ -0,0 +1,84 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013, 2014 Damien P. George
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mpconfig.h"
+#include "nlr.h"
+#include "misc.h"
+#include "qstr.h"
+#include "obj.h"
+#include "input.h"
+
+#if MICROPY_USE_READLINE
+#include <readline/readline.h>
+#include <readline/history.h>
+#endif
+
+#define CTRL_D  '\x04'
+
+char *prompt(char *p) {
+#if MICROPY_USE_READLINE
+    char *line = readline(p);
+    if (line) {
+        add_history(line);
+    }
+#else
+    static char buf[256];
+    fputs(p, stdout);
+    char *s = fgets(buf, sizeof(buf), stdin);
+    if (!s) {
+        return NULL;
+    }
+    int l = strlen(buf);
+    if (buf[l - 1] == '\n') {
+        buf[l - 1] = 0;
+    } else {
+        l++;
+    }
+    char *line = malloc(l);
+    memcpy(line, buf, l);
+#endif
+    return line;
+}
+
+STATIC mp_obj_t mp_builtin_input(uint n_args, const mp_obj_t *args) {
+    if (n_args == 1) {
+        mp_obj_print(args[0], PRINT_STR);
+    }
+
+    char *line = prompt("");
+    if (line == NULL) {
+        nlr_raise(mp_obj_new_exception(&mp_type_EOFError));
+    }
+    mp_obj_t o = mp_obj_new_str((const byte*)line, strlen(line), false);
+    free(line);
+    return o;
+}
+
+MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_builtin_input_obj, 0, 1, mp_builtin_input);