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