使用C语言读取properties文件V1.0

mac2022-06-30  25

本程序使用C语言读取类似以下格式的properties文件。

path = /etc/wgetrc

launch_on_start = true

下一版目标:

(1)使用指针代替二维数据或者二维数据的容量减少至最低要求。

(2)忽略所有空格,忽略空行及注释行

(3)头文件规范写法。

文件1:main.c

#include <stdio.h> #include "read_properties.h" int main(void){ char names[100][100], values[100][100]; read_properties("/home/lujinhong/scripts/projects/read_properties_file/test.properties", names, values); return 0; } 文件2:read_properties.h

void read_properties(char *pathname, char names[100][100], char values[100][100]); 文件3:read_properties.c

/******************************************************************** * This file is used to read the names and values from a properties file, * and store them in an array. * * ******************************************************************/ #include "read_properties.h" #include <stdio.h> #include <unistd.h> #include "utils.h" void read_properties(char *pathname, char names[100][100], char values[100][100]){ FILE *file; char line[100]; int i = 0; file = fopen(pathname, "r"); while(fgets(line, 100, file)){ printf("%s", line); //just for test, delete it later. parseline(line, names[i], values[i]); i++; } fclose(file); } 文件4:utils.h

void parseline(char *line, char *name, char *value); 文件5:utils.c

/*********************************************************** * Parse content of the line, and store the name and value. * line example: path=/etc/wgetrc * * *********************************************************/ void parseline(char *line, char *name, char *value){ int length = 0, equal = 1; //equal will record the location of the '=' char *begin; length = strlen(line); for(begin = line; *begin != '=' && equal <= length; begin ++){ equal++; } strncpy(name, line, equal - 1); line+=equal; strncpy(value, line, length - equal); printf("name = %s value = %s\n", name, value); //just for test, delete it later. }

运行结果:

path = /etc/wgetrc name = path value = /etc/wgetrc launch_on_boot = true name = launch_on_boot value = true

转载于:https://www.cnblogs.com/jinhong-lu/archive/2013/02/26/4559547.html

最新回复(0)