添加字符串预处理，设置转义字符

README.md

@@ -7,5 +7,5 @@
     make
 
 # test
-    gcc -Wall test.c -o test -L./ -lconf -static
+    gcc -Wall test.c -o test -I./ -L./ -lconf -static
     ./test

libconf.c

@@ -1,5 +1,27 @@
 #include "libconf.h"
 
+/* 字符串预处理，设置转义字符 */
+static void string_pretreatment(char *str, int *len)
+{
+    char *lf, *p, *ori_strs[] = { "\\r", "\\n", "\\b", "\\v", "\\f", "\\t", "\\a", "\\b", "\\0" }, to_chrs[] = { '\r', '\n', '\b', '\v', '\f', '\t', '\a', '\b', '\0' };
+    int i;
+
+    while ((lf = strchr(str, '\n')) != NULL) {
+        for (p = lf + 1; *p == ' ' || *p == '\t' || *p == '\n' || *p == '\r'; p++)
+            *len -= 1;
+        strcpy(lf, p);
+        *len -= 1;
+    }
+    for (i = 0; i < sizeof(to_chrs); i++) {
+        for (p = strstr(str, ori_strs[i]); p; p = strstr(p, ori_strs[i])) {
+            //支持\\r
+            *(p - 1) == '\\' ? (*p--) : (*p = to_chrs[i]);
+            memmove(p + 1, p + 2, strlen(p + 2));
+            (*len)--;
+        }
+    }
+}
+
 /* 在content中，设置变量(var)的首地址，值(val)的位置首地址和末地址，返回下一行指针 */
 static char *set_var_val_lineEnd(char *content, char **var, char **val_begin, char **val_end)
 {
@@ -67,6 +89,7 @@ static char *set_var_val_lineEnd(char *content, char **var, char **val_begin, ch
         val_len = strlen(*val_begin);
         *val_end = lineEnd = *val_begin + val_len;
     }
+    string_pretreatment(*val_begin, &val_len);
     *val_end = *val_begin + val_len;
     //printf("var[%s]\nbegin[%s]\n\n", *var, *val_begin);
     return lineEnd;
@@ -75,7 +98,6 @@ static char *set_var_val_lineEnd(char *content, char **var, char **val_begin, ch
 static char *parse_global_module(char *content, char *key)
 {
     char *var, *val_begin, *val_end, *lineEnd;
-    int val_begin_len;
     
     while ((lineEnd = set_var_val_lineEnd(content, &var, &val_begin, &val_end)) != NULL)
     {

libconf.h

@@ -7,6 +7,6 @@
 #include <error.h>
 #include <unistd.h>
 
-char *read_conf(char *filename, char *module, char *key);
+extern char *read_conf(char *filename, char *module, char *key);
 
 #endif