1 files changed, 121 insertions, 0 deletions
diff --git a/ports/unix/input.c b/ports/unix/input.c
new file mode 100644
index 000000000..7d60b46cc
--- /dev/null
+++ b/ports/unix/input.c
@@ -0,0 +1,121 @@
+/*
+ * This file is part of the MicroPython 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+
+#include "py/mpstate.h"
+#include "py/mphal.h"
+#include "input.h"
+
+#if MICROPY_USE_READLINE == 1
+#include "lib/mp-readline/readline.h"
+#endif
+
+#if MICROPY_USE_READLINE == 0
+char *prompt(char *p) {
+    // simple read string
+    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);
+    return line;
+}
+#endif
+
+void prompt_read_history(void) {
+#if MICROPY_USE_READLINE_HISTORY
+    #if MICROPY_USE_READLINE == 1
+    readline_init0(); // will clear history pointers
+    char *home = getenv("HOME");
+    if (home != NULL) {
+        vstr_t vstr;
+        vstr_init(&vstr, 50);
+        vstr_printf(&vstr, "%s/.micropython.history", home);
+        int fd = open(vstr_null_terminated_str(&vstr), O_RDONLY);
+        if (fd != -1) {
+            vstr_reset(&vstr);
+            for (;;) {
+                char c;
+                int sz = read(fd, &c, 1);
+                if (sz < 0) {
+                    break;
+                }
+                if (sz == 0 || c == '\n') {
+                    readline_push_history(vstr_null_terminated_str(&vstr));
+                    if (sz == 0) {
+                        break;
+                    }
+                    vstr_reset(&vstr);
+                } else {
+                    vstr_add_byte(&vstr, c);
+                }
+            }
+            close(fd);
+        }
+        vstr_clear(&vstr);
+    }
+    #endif
+#endif
+}
+
+void prompt_write_history(void) {
+#if MICROPY_USE_READLINE_HISTORY
+    #if MICROPY_USE_READLINE == 1
+    char *home = getenv("HOME");
+    if (home != NULL) {
+        vstr_t vstr;
+        vstr_init(&vstr, 50);
+        vstr_printf(&vstr, "%s/.micropython.history", home);
+        int fd = open(vstr_null_terminated_str(&vstr), O_CREAT | O_TRUNC | O_WRONLY, 0644);
+        if (fd != -1) {
+            for (int i = MP_ARRAY_SIZE(MP_STATE_PORT(readline_hist)) - 1; i >= 0; i--) {
+                const char *line = MP_STATE_PORT(readline_hist)[i];
+                if (line != NULL) {
+                    int res;
+                    res = write(fd, line, strlen(line));
+                    res = write(fd, "\n", 1);
+                    (void)res;
+                }
+            }
+            close(fd);
+        }
+    }
+    #endif
+#endif
+}