新建项目

middleware/letter-shell/extensions/shell_enhance/shell_passthrough.c

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+/**
+ * @file shell_passthrough.c
+ * @author Letter(nevermindzzt@gmail.com)
+ * @brief shell passthrough mode
+ * @version 0.1
+ * @date 2021-05-31
+ * 
+ * @copyright (c) 2021 Letter
+ * 
+ */
+#include "shell_passthrough.h"
+#include "string.h"
+
+/**
+ * @brief shell passthrough 模式
+ * 
+ * @param shell shell
+ * @param prompt passthrough 提示符
+ * @param handler pssthrough handler
+ * @param argc 命令行参数数量
+ * @param argv 命令行参数
+ * 
+ * @return unsigned int 返回值
+ */
+unsigned int shellPassthrough(Shell *shell, const char *prompt, ShellPassthrough handler, int argc, char *argv[])
+{
+    char data;
+
+    if (argc > 1)
+    {
+        handler(argv[1], strlen(argv[1]));
+    }
+    else
+    {
+        shell->status.isActive = 0;
+        shellWriteString(shell, prompt);
+        while (1)
+        {
+            if (shell->read && shell->read(&data, 1) == 1)
+            {
+                if (data == '\r' || data == '\n')
+                {
+                    shellWriteString(shell, "\r\n");
+                    if (shell->parser.length != 0)
+                    {
+                        shell->parser.buffer[shell->parser.length] = 0;
+                        handler(shell->parser.buffer, shell->parser.length);
+                        shell->parser.length = 0;
+                        shell->parser.cursor = 0;
+                    }
+                    shellWriteString(shell, prompt);
+                }
+                else if (data == SHELL_PASSTHROUGH_EXIT_KEY)
+                {
+                    shellWriteString(shell, "\r\n");
+                    shell->parser.length = 0;
+                    shell->parser.cursor = 0;
+                    return -1;
+                }
+                else
+                {
+                    shellHandler(shell, data);
+                }
+            }
+        }
+    }
+    return 0;
+}