Bringing in Linenoise example.

* linenoise/example.c: New file.

1 files changed, 75 insertions, 0 deletions

diff --git a/linenoise/example.c b/linenoise/example.c
new file mode 100644
index 00000000..a5046fa3
--- /dev/null
+++ b/linenoise/example.c
@@ -0,0 +1,75 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "linenoise.h"
+
+typedef unsigned char mem_t;
+
+mem_t *chk_malloc(size_t n)
+{
+    return malloc(n);
+}
+
+mem_t *chk_realloc(mem_t *old, size_t size)
+{
+    return realloc(old, size);
+}
+
+void completion(const char *buf, lino_completions_t *lc) {
+    if (buf[0] == 'h') {
+        lino_add_completion(lc, "hello");
+        lino_add_completion(lc, "hello there");
+    }
+}
+
+int main(int argc, char **argv) {
+    char *line;
+    char *prgname = argv[0];
+
+    /* Parse options, with --multiline we enable multi line editing. */
+    while(argc > 1) {
+        argc--;
+        argv++;
+        if (!strcmp(*argv,"--multiline")) {
+            lino_set_multiline(1);
+            printf("Multi-line mode enabled.\n");
+        } else if (!strcmp(*argv,"--keycodes")) {
+            lino_print_keycodes();
+            exit(0);
+        } else {
+            fprintf(stderr, "Usage: %s [--multiline] [--keycodes]\n", prgname);
+            exit(1);
+        }
+    }
+
+    /* Set the completion callback. This will be called every time the
+     * user uses the <tab> key. */
+    lino_set_completion_cb(completion);
+
+    /* Load history from file. The history file is just a plain text file
+     * where entries are separated by newlines. */
+    lino_hist_load("history.txt"); /* Load the history at startup */
+
+    /* Now this is the main loop of the typical linenoise-based application.
+     * The call to linenoise() will block as long as the user types something
+     * and presses enter.
+     *
+     * The typed string is returned as a malloc() allocated string by
+     * linenoise, so the user needs to free() it. */
+    while((line = linenoise("hello> ")) != NULL) {
+        /* Do something with the string. */
+        if ((1 || line[0] != '\0') && line[0] != '/') {
+            printf("echo: '%s'\n", line);
+            lino_hist_add(line); /* Add to the history. */
+            lino_hist_save("history.txt"); /* Save the history on disk. */
+        } else if (!strncmp(line,"/historylen",11)) {
+            /* The "/historylen" command will change the history len. */
+            int len = atoi(line+11);
+            lino_hist_set_max_len(len);
+        } else if (line[0] == '/') {
+            printf("Unreconized command: %s\n", line);
+        }
+        free(line);
+    }
+    return 0;
+}