feat: add custom delimiter to gentree

LEAKS

@@ -1,8 +1,8 @@
-==6704== Memcheck, a memory error detector
+==12180== Memcheck, a memory error detector
-==6704== Copyright (C) 2002-2024, and GNU GPL'd, by Julian Seward et al.
+==12180== Copyright (C) 2002-2024, and GNU GPL'd, by Julian Seward et al.
-==6704== Using Valgrind-3.23.0 and LibVEX; rerun with -h for copyright info
+==12180== Using Valgrind-3.23.0 and LibVEX; rerun with -h for copyright info
-==6704== Command: ./test
+==12180== Command: ./test
-==6704== 
+==12180== 
 ------------------------
 [+][1/1] Success: could find 'A-IM' in tree
 [+][2/2] Success: could find 'Accept' in tree
@@ -115,12 +115,12 @@
 ------------------------
 [+] Freed all memory in use
 [f] Finished
-==6704== 
+==12180== 
-==6704== HEAP SUMMARY:
+==12180== HEAP SUMMARY:
-==6704==     in use at exit: 0 bytes in 0 blocks
+==12180==     in use at exit: 0 bytes in 0 blocks
-==6704==   total heap usage: 2,056 allocs, 2,056 frees, 2,206,614 bytes allocated
+==12180==   total heap usage: 2,056 allocs, 2,056 frees, 2,206,614 bytes allocated
-==6704== 
+==12180== 
-==6704== All heap blocks were freed -- no leaks are possible
+==12180== All heap blocks were freed -- no leaks are possible
-==6704== 
+==12180== 
-==6704== For lists of detected and suppressed errors, rerun with: -s
+==12180== For lists of detected and suppressed errors, rerun with: -s
-==6704== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
+==12180== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)

Makefile

@@ -17,7 +17,7 @@ test:
 run: 
 	./$(OUTPUT)
 
-run_test: 
+runtest: 
 	./$(TOUTPUT)
 
 memcheck: 

README

@@ -29,14 +29,18 @@ TECHNICALS
         * warning: string has to be null-byte terminated 
         * returns: the assigned ID of the string, 0 if string 
             is already inside tree, or -1 if function fails
-    int gentree(struct nod *nod, char *strs)
+    int gentree(struct nod *nod, char *strs, char *delim)
         * generate tree from character seperated strings
+        * if delim is NULL, then "\n" is assumed
         * warning: seperation character is '\n'
         * returns: 0 if ok or -1 if function fails
     int streecmp(struct nod *nod, char *str) 
         * traverse tree and search for str
         * returns: id of string or 0 if there is no match
 
+    test.c provides a practical example for comparing against 
+    HTTP header fields
+
 LEAKS
 
     LEAKS file contains the most recent valgrind memory leaks 
@@ -44,7 +48,7 @@ LEAKS
 
 TODO
 
-    * gentree with custom seperator
+    * everything done so far 
 
 COMMITS
     

streecmp.c

@@ -76,14 +76,18 @@ int mkstr(struct nod *nod, char *str) {
     return strs_cnt;
 }
 
-int gentree(struct nod *nod, char *strs) {
+int gentree(struct nod *nod, char *strs, char *delim) {
     char *strs_cpy = strdup(strs);
     if (strs_cpy == NULL) {
         goto _err;
     }
 
-    for (char *tok = strtok(strs_cpy, "\n"); tok != NULL; tok
+    if (delim == NULL) {
-            = strtok(NULL, "\n")) {
+        delim = DEF_DELIM;
+    }
+
+    for (char *tok = strtok(strs_cpy, delim); tok != NULL; tok
+            = strtok(NULL, delim)) {
         int ret = mkstr(nod, tok);
         if (ret < 0) {
             goto _err_mkstr;

streecmp.h

@@ -2,6 +2,7 @@
 #define STREECMP_H
 
 #define POOL_SIZE 256
+#define DEF_DELIM "\n"
 
 struct nodval {
     int ival; 
@@ -18,7 +19,7 @@ void frenod(struct nod *nod);
 struct nod *allocnod(void);
 struct nod *mknod(struct nod *nod, int loc);
 int mkstr(struct nod *nod, char *str);
-int gentree(struct nod *nod, char *strs);
+int gentree(struct nod *nod, char *strs, char *delim);
 int streecmp(struct nod *nod, char *str);
 
 #endif

test.c

@@ -3,6 +3,7 @@
 #include <string.h>
 #include "streecmp.h"
 
+// SRC: en.wikipedia.org/wiki/List_of_HTTP_header_fields
 char *strs = "A-IM\n"
              "Accept\n"
              "Accept-Charset\n"
@@ -126,7 +127,7 @@ int main(void) {
         return -1;
     }
 
-    ret = gentree(rot, strs);
+    ret = gentree(rot, strs, NULL);
     if (ret < 0) {
         fprintf(stderr, "[-] Failed: could not generate tree\n");
         return -1;