fxlink: start implementing TUI commands (mainly gintctl tests)

CMakeLists.txt

@@ -55,14 +55,15 @@ add_executable(fxlink
   fxlink/modes/interactive.c
   fxlink/modes/list.c
   fxlink/modes/push.c
-  fxlink/modes/tui-interactive.c
   fxlink/modes/udisks2.c
   fxlink/tooling/libpng.c
   fxlink/tooling/sdl2.c
   fxlink/tooling/udisks2.c
+  fxlink/tui/commands.c
   fxlink/tui/input.c
   fxlink/tui/layout.c
-  fxlink/tui/render.c)
+  fxlink/tui/render.c
+  fxlink/tui/tui-interactive.c)
 target_link_libraries(fxlink
   PkgConfig::libpng PkgConfig::libusb PkgConfig::ncurses -lm)
 target_include_directories(fxlink PRIVATE

fxlink/tui/commands.c

@@ -0,0 +1,240 @@
+//---------------------------------------------------------------------------//
+// ==>/[_]\   fxlink: A community communication tool for CASIO calculators.  //
+//    |:::|   Made by Lephe' as part of the fxSDK.                           //
+//    \___/   License: MIT <https://opensource.org/licenses/MIT>             //
+//---------------------------------------------------------------------------//
+
+#include "tui.h"
+#include <string.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <stdarg.h>
+
+//---
+// Parsing utilities
+//---
+
+struct command {
+    int argc;
+    char const **argv;
+    char *data;
+};
+
+static struct command parse_command(char const *input)
+{
+    struct command cmd;
+    cmd.argc = 0;
+    cmd.argv = NULL;
+    cmd.data = malloc(strlen(input) + 1);
+    if(!cmd.data)
+        return cmd;
+
+    char const *escapes1 = "\\nter";
+    char const *escapes2 = "\\\n\t\e\r";
+
+    /* Whether a new word needs to be created at the next character */
+    bool word_finished = true;
+    /* Offset into cmd.data */
+    int i = 0;
+
+    /* Read words eagerly, appending to cmd.data as we go */
+    for(int j = 0; input[j]; j++) {
+        int c = input[j];
+
+        /* Stop words at spaces */
+        if(isspace(c)) {
+            if(!word_finished)
+                cmd.data[i++] = 0;
+            word_finished = true;
+            continue;
+        }
+
+        /* Translate escapes */
+        if(c == '\\') {
+            char *p = strchr(escapes1, input[j+1]);
+            if(p) {
+                c = escapes2[p - escapes1];
+                j++;
+            }
+        }
+
+        /* Add a new word if necessary */
+        if(word_finished) {
+            cmd.argv = realloc(cmd.argv, (++cmd.argc) * sizeof *cmd.argv);
+            cmd.argv[cmd.argc - 1] = cmd.data + i;
+            word_finished = false;
+        }
+
+        /* Copy literals */
+        cmd.data[i++] = c;
+    }
+
+    cmd.data[i++] = 0;
+    return cmd;
+}
+
+static void dump_command(struct command const *cmd)
+{
+    print(TUI.wConsole, "command(%d)", cmd->argc);
+    for(int i = 0; i < cmd->argc; i++) {
+        char const *arg = cmd->argv[i];
+        print(TUI.wConsole, " '%s'(%d)", arg, (int)strlen(arg));
+    }
+    print(TUI.wConsole, "\n");
+}
+
+static void free_command(struct command *cmd)
+{
+    free(cmd->argv);
+    free(cmd->data);
+}
+
+/* Parse a list of arguments into strings/integers/etc. The format is a string
+   of argument specifiers, which can be:
+     s   String
+     d   Integer
+     *   Other variadic arguments (integer holding first index)
+   (-- will probably be expanded later.)
+   Returns true if parsing succeeded, false otherwise (including if arguments
+   are missing) after printing an error message. */
+static bool parse_arguments(int argc, char const **argv, char const *fmt, ...)
+{
+    va_list args;
+    va_start(args, fmt);
+
+    int i = 1;
+    char const *spec = fmt;
+
+    while(*spec) {
+        if(i >= argc) {
+            fprint(TUI.wConsole, FMT_RED, "error: ");
+            print(TUI.wConsole, "too few arguments\n");
+            goto failure;
+        }
+
+        /* Parse an argument specifier */
+        if(*spec == 's') {
+            char const **ptr = va_arg(args, char const **);
+            *ptr = argv[i];
+        }
+        else if(*spec == 'd') {
+            int *ptr = va_arg(args, int *);
+            char *endptr;
+            long l = strtol(argv[i], &endptr, 0);
+            if(*endptr) {
+                fprint(TUI.wConsole, FMT_RED, "error: ");
+                print(TUI.wConsole, "not a valid integer: '%s'\n", argv[i]);
+                goto failure;
+            }
+            *ptr = l;
+        }
+
+        spec++;
+    }
+
+    va_end(args);
+    return true;
+
+failure:
+    va_end(args);
+    return false;
+}
+
+static bool run_no_device(int argc, char const **argv)
+{
+    (void)argc;
+    (void)argv;
+    return false;
+}
+
+static void run_gintctl_command(int argc, char const **argv,
+    struct fxlink_device *fdev)
+{
+    if(!strcmp(argv[0], "read-long")) {
+        int count = 0;
+        if(!parse_arguments(argc, argv, "d", &count))
+            return;
+        if(count < 0 || count > 8192)
+            return;
+
+        uint32_t *data = malloc(count * 4);
+        for(int i = 0; i < count; i++)
+            data[i] = i;
+        fxlink_device_start_bulk_OUT(fdev,
+            "gintctl", "echo-bounds", data, count * 4, true);
+    }
+}
+
+static bool run_with_device(int argc, char const **argv,
+    struct fxlink_device *fdev)
+{
+    if(!strcmp(argv[0], "/echo")) {
+        int l = 5, j = 5;
+        for(int i = 1; i < argc; i++)
+            l += strlen(argv[i]) + 1;
+
+        char *concat = malloc(l + 1);
+        strcpy(concat, "echo ");
+        for(int i = 1; i < argc; i++) {
+            strcpy(concat + j, argv[i]);
+            j += strlen(argv[i]);
+            concat[j++] = (i == argc - 1) ? '\n' : ' ';
+        }
+        concat[j] = '\0';
+
+        fxlink_device_start_bulk_OUT(fdev,
+            "fxlink", "command", concat, l, true);
+    }
+    else if(!strcmp(argv[0], "/identify")) {
+        fxlink_device_start_bulk_OUT(fdev,
+            "fxlink", "command", "identify", 8, false);
+    }
+    else if(!strcmp(argv[0], "gintctl")) {
+        if(argc <= 1) {
+            fprint(TUI.wConsole, FMT_RED, "error: ");
+            print(TUI.wConsole, "gintctl command needs sub-command\n");
+            return true;
+        }
+        run_gintctl_command(argc-1, argv+1, fdev);
+        return true;
+    }
+    else
+        return false;
+    return true;
+}
+
+void TUI_execute_command(char const *command)
+{
+    struct command cmd = parse_command(command);
+    (void)dump_command;
+
+    /* Connected device (TODO: Use the "selected" device) */
+    struct fxlink_device *fdev = NULL;
+    for(int i = 0; i < TUI.devices.count; i++) {
+        if(TUI.devices.devices[i].status == FXLINK_FDEV_STATUS_CONNECTED) {
+            fdev = &TUI.devices.devices[i];
+            break;
+        }
+    }
+
+    bool b = run_no_device(cmd.argc, cmd.argv);
+    if(b) {
+        free_command(&cmd);
+        return;
+    }
+
+    /* The following commands require a connected device */
+    if(!fdev) {
+        print(TUI.wConsole, "no connected device!\n");
+        return;
+    }
+    print(TUI.wConsole, "using device %s (%s)\n",
+        fxlink_device_id(fdev), fdev->calc->serial);
+
+    b = run_with_device(cmd.argc, cmd.argv, fdev);
+    if(!b) {
+        fprint(TUI.wConsole, FMT_RED, "error: ");
+        print(TUI.wConsole, "unrecognized command '%s'\n", cmd.argv[0]);
+    }
+    free_command(&cmd);
+}

fxlink/tui/tui-interactive.c

@@ -5,17 +5,10 @@
 //---------------------------------------------------------------------------//
 
 #include "../fxlink.h"
-#include <fxlink/tui/layout.h>
-#include <fxlink/tui/render.h>
-#include <fxlink/tui/input.h>
-#include <fxlink/devices.h>
-#include <fxlink/logging.h>
+#include "tui.h"
 #include <fxlink/tooling/libpng.h>
 #include <fxlink/tooling/sdl2.h>
 
-#include <libusb.h>
-#include <ncurses.h>
-#include <poll.h>
 #include <string.h>
 #include <stdlib.h>
 #include <signal.h>
@@ -40,22 +33,7 @@ Application-specific commands:
   gintctl bench             USB transfer speed benchmark
 */
 
-static struct TUIData {
-    /* SIGWINCH flag */
-    bool resize_needed;
-    /* ncurses window panels */
-    WINDOW *wStatus;
-    WINDOW *wLogs;
-    WINDOW *wTransfers;
-    WINDOW *wTextOutput;
-    WINDOW *wConsole;
-    /* Root box */
-    struct fxlink_TUI_box *bRoot;
-    /* Application data */
-    struct fxlink_pollfds polled_fds;
-    struct fxlink_device_list devices;
-
-} TUI = { 0 };
+struct TUIData TUI = { 0 };
 
 //---
 // TUI management and rendering
@@ -421,50 +399,6 @@ static void handle_fxlink_log(int display_fmt, char const *str)
     wattroff(TUI.wLogs, attr);
 }
 
-static void execute_command(char const *command)
-{
-    /* Connected device (TODO: Use the "selected" device) */
-    struct fxlink_device *fdev = NULL;
-    for(int i = 0; i < TUI.devices.count; i++) {
-        if(TUI.devices.devices[i].status == FXLINK_FDEV_STATUS_CONNECTED) {
-            fdev = &TUI.devices.devices[i];
-            break;
-        }
-    }
-
-    /* The following commands require a connected device */
-    if(!fdev) {
-        print(TUI.wConsole, "no connected device!\n");
-        return;
-    }
-    print(TUI.wConsole, "using device %s (%s)\n",
-        fxlink_device_id(fdev), fdev->calc->serial);
-
-    if(!strncmp(command, "/echo", 5)) {
-        int len = strlen(command+1);
-        fxlink_device_start_bulk_OUT(fdev,
-            "fxlink", "command", strdup(command+1), len, true);
-        return;
-    }
-    else if(!strcmp(command, "/identify")) {
-        fxlink_device_start_bulk_OUT(fdev,
-            "fxlink", "command", "identify", 8, false);
-        return;
-    }
-    else if(!strcmp(command, "gintctl read-long")) {
-        int count = 128; // 2048;
-        uint32_t *data = malloc(count * 4);
-        for(int i = 0; i < count; i++)
-            data[i] = i;
-        fxlink_device_start_bulk_OUT(fdev,
-            "gintctl", "echo-bounds", data, count * 4, true);
-        return;
-    }
-
-    fprint(TUI.wConsole, FMT_RED, "error: ");
-    print(TUI.wConsole, "unrecognized command '%s'\n", command);
-}
-
 int main_tui_interactive(libusb_context *ctx)
 {
     if(!TUI_setup())
@@ -541,18 +475,29 @@ int main_tui_interactive(libusb_context *ctx)
 
             if(finished) {
                 char *command = input.data;
+                bool refresh_all = false;
+
                 if(command[0] != 0)
                     log_("command: '%s'\n", command);
                 if(!strcmp(command, ""))
                     {}
                 else if(!strcmp(command, "q") || !strcmp(command, "quit"))
                     break;
-                else
-                    execute_command(command);
+                else {
+                    TUI_execute_command(command);
+                    refresh_all = true;
+                }
+
                 fxlink_TUI_input_free(&input);
                 print(TUI.wConsole, "%s", prompt);
                 fxlink_TUI_input_init(&input, TUI.wConsole, 16);
-                TUI_refresh_console();
+
+                if(refresh_all) {
+                    TUI_render_all(false);
+                    TUI_refresh_all(false);
+                }
+                else
+                    TUI_refresh_console();
             }
         }
 

fxlink/tui/tui.h

@@ -0,0 +1,36 @@
+//---------------------------------------------------------------------------//
+// ==>/[_]\   fxlink: A community communication tool for CASIO calculators.  //
+//    |:::|   Made by Lephe' as part of the fxSDK.                           //
+//    \___/   License: MIT <https://opensource.org/licenses/MIT>             //
+//---------------------------------------------------------------------------//
+// fxlink.tui.tui: Global data and main functions for the interactive TUI
+
+#pragma once
+#include <fxlink/tui/layout.h>
+#include <fxlink/tui/render.h>
+#include <fxlink/tui/input.h>
+#include <fxlink/devices.h>
+#include <fxlink/logging.h>
+
+#include <libusb.h>
+#include <ncurses.h>
+
+struct TUIData {
+    /* SIGWINCH flag */
+    bool resize_needed;
+    /* ncurses window panels */
+    WINDOW *wStatus;
+    WINDOW *wLogs;
+    WINDOW *wTransfers;
+    WINDOW *wTextOutput;
+    WINDOW *wConsole;
+    /* Root box */
+    struct fxlink_TUI_box *bRoot;
+    /* Application data */
+    struct fxlink_pollfds polled_fds;
+    struct fxlink_device_list devices;
+};
+
+extern struct TUIData TUI;
+
+void TUI_execute_command(char const *command);