stdlib: added strtok()

1 files changed, 48 insertions, 0 deletions

diff --git a/src/pOS/arch/x86/libc/string/strtok.cpp b/src/pOS/arch/x86/libc/string/strtok.cpp
new file mode 100644
index 0000000..b6fb4b3
--- /dev/null
+++ b/src/pOS/arch/x86/libc/string/strtok.cpp
@@ -0,0 +1,48 @@
+#include <stdlib.h>
+#include <string.h>
+
+char* strtok(char* str, const char* delim)
+{
+    static char* lastPos = 0;
+    static char token[100];
+
+    if(!str && !lastPos)
+        return 0;
+
+    if(!delim)
+        return 0;
+
+    if(str)
+        lastPos = str;
+
+    int delim_len = strlen(delim);
+    char* strt_ptr = lastPos;
+    int count = 0;
+
+    while(*lastPos != '\0')
+    {
+        bool is_found = false;
+        for(int y = 0; y < delim_len; y++)
+        {
+            if(*(delim + y) == *lastPos)
+                is_found = true;
+        }
+        lastPos++;
+        if(is_found)
+            break;
+        count++;
+    }
+
+    if(*lastPos == '\0')
+        lastPos = NULL;
+
+    if(!count)
+        return strtok(0, delim);
+
+    for(int x = 0; x < count; x++)
+        token[x] = *(strt_ptr + x);
+    token[count] = '\0';
+
+    return token;
+}
+