hi3861软件

json_parser.c

@@ -0,0 +1,72 @@
+#include "json_parser.h"
+#include "chinese_char_map.h"
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+// 简单的JSON解析函数，解析格式: {"cmd":1,"text":"hello"}
+int ParseJsonCommand(const char* json_str, JsonCommand* command) {
+    if (!json_str || !command) {
+        return -1;
+    }
+    
+    // 初始化结构体
+    command->cmd = 0;
+    memset(command->text, 0, MAX_TEXT_LENGTH);
+    
+    // 查找cmd字段
+    const char* cmd_pos = strstr(json_str, "\"cmd\":");
+    if (cmd_pos) {
+        cmd_pos += 6; // 跳过"cmd":
+        // 跳过空格
+        while (*cmd_pos == ' ') cmd_pos++;
+        command->cmd = atoi(cmd_pos);
+    }
+    
+    // 查找text字段
+    const char* text_pos = strstr(json_str, "\"text\":");
+    if (text_pos) {
+        text_pos += 7; // 跳过"text":
+        // 跳过空格和引号
+        while (*text_pos == ' ' || *text_pos == '\"') text_pos++;
+        
+        // 复制文本直到遇到引号或字符串结束
+        int i = 0;
+        while (*text_pos && *text_pos != '\"' && i < MAX_TEXT_LENGTH - 1) {
+            command->text[i++] = *text_pos++;
+        }
+        command->text[i] = '\0';
+    }
+    
+    return 0;
+}
+
+// 创建IP地址消息，格式: {"type":"ip","address":"192.168.1.100"}
+int CreateIpMessage(char* buffer, int buffer_size, const char* ip_address) {
+    if (!buffer || !ip_address || buffer_size < 50) {
+        return -1;
+    }
+    
+    int len = snprintf(buffer, buffer_size, 
+                      "{\"type\":\"ip\",\"address\": \"%s\"}", 
+                      ip_address);
+    
+    return (len > 0 && len < buffer_size) ? 0 : -1;
+}
+
+// 查找中文字符在fonts3数组中的索引
+int FindChineseCharIndex(const char* utf8_char) {
+    if (!utf8_char) {
+        return -1;
+    }
+    
+    // 遍历映射表查找匹配的字符
+    for (int i = 0; i < CHINESE_CHAR_MAP_SIZE; i++) {
+        if (strcmp(utf8_char, chinese_char_map[i].utf8_char) == 0) {
+            return chinese_char_map[i].font_index;
+        }
+    }
+    
+    // 未找到匹配的字符
+    return -1;
+}