More work; command parsing via readline.

test/test_physfs.c

@@ -1,11 +1,14 @@
 #include <stdio.h>
+#include <stdlib.h>
+#include <readline.h>
+#include <history.h>
 #include "physfs.h"
 
 #define TEST_VERSION_MAJOR  0
 #define TEST_VERSION_MINOR  1
 #define TEST_VERSION_PATCH  0
 
-void output_versions(void)
+static void output_versions(void)
 {
     PHYSFS_Version compiled;
     PHYSFS_Version linked;
@@ -22,7 +25,7 @@ void output_versions(void)
 } /* output_versions */
 
 
-void output_archivers(void)
+static void output_archivers(void)
 {
     const PHYSFS_ArchiveInfo **rc = PHYSFS_supportedArchiveTypes();
     const PHYSFS_ArchiveInfo **i;
@@ -39,11 +42,85 @@ void output_archivers(void)
                     (*i)->author, (*i)->url);
         } /* for */
     } /* else */
+
+    printf("\n");
 } /* output_archivers */
 
 
+static int cmd_help(char *cmdstr)
+{
+    printf("Commands:\n"
+           "  quit - exit this program.\n"
+           "  help - this information.\n");
+    return(1);
+} /* output_cmd_help */
+
+
+static int cmd_quit(char *cmdstr)
+{
+    return(0);
+} /* cmd_quit */
+
+
+typedef struct
+{
+    const char *cmd;
+    int (*func)(char *cmdstr);
+} command_info;
+
+static command_info commands[] =
+{
+    {"quit", cmd_quit},
+    {"q",    cmd_quit},
+    {"help", cmd_help},
+    {NULL, NULL}
+};
+
+
+static int process_command(char *complete_cmd)
+{
+    command_info *i;
+    char *ptr = strchr(complete_cmd, ' ');
+    char *cmd = NULL;
+    int rc = 1;
+
+    if (ptr == NULL)
+    {
+        cmd = malloc(strlen(complete_cmd) + 1);
+        strcpy(cmd, complete_cmd);
+    } /* if */
+    else
+    {
+        *ptr = '\0';
+        cmd = malloc(strlen(complete_cmd) + 1);
+        strcpy(cmd, complete_cmd);
+        *ptr = ' ';
+    } /* else */
+
+    for (i = commands; i->cmd != NULL; i++)
+    {
+        if (strcmp(i->cmd, cmd) == 0)
+        {
+            rc = i->func(complete_cmd);
+            break;
+        } /* if */
+    } /* for */
+
+    if (i->cmd == NULL)
+        printf("Unknown command. Enter \"help\" for instructions.\n");
+
+    free(cmd);
+    return(rc);
+} /* process_command */
+
+
 int main(int argc, char **argv)
 {
+    char *buf = NULL;
+    int rc = 0;
+
+    printf("\n");
+
     if (!PHYSFS_init(argv[0]))
     {
         printf("PHYSFS_init() failed!\n  reason: %s\n", PHYSFS_getLastError());
@@ -53,6 +130,15 @@ int main(int argc, char **argv)
     output_versions();
     output_archivers();
 
+    printf("Enter commands. Enter \"help\" for instructions.\n");
+
+    do
+    {
+        buf = readline("> ");
+        rc = process_command(buf);
+        free(buf);
+    } while (rc);
+
     return(0);
 } /* main */