Added sv trims

include/sv.h

@@ -18,6 +18,8 @@ typedef struct String_View SV;
 
 SV sv_str(const char *s);
 SV sv_strn(const char *s, size_t len);
-
+SV sv_trim(SV s);
+SV sv_trim_left(SV s);
+SV sv_trim_right(SV s);
 
 #endif

src/sv.c

@@ -1,12 +1,29 @@
 #include "../include/sv.h"
 #include <string.h>
+#include <stdbool.h>
+
+static bool is_space(int c) {
+    return c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == '\v' || c == '\f';
+}
 
 SV sv_str(const char *s){
   SV str = {s == NULL ? 0 : strlen(s), (char *)s};
   return str;
 }
-
 SV sv_strn(const char *s, size_t len){
   SV str = {len, (char *) s};
   return str; 
 }
+SV sv_trim(SV s){
+    while (s.len > 0 && is_space((int) *s.buf)) s.buf++, s.len--;
+    while (s.len > 0 && is_space((int) *(s.buf + s.len - 1))) s.len--;
+    return s;
+}
+SV sv_trim_left(SV s){
+    while (s.len > 0 && is_space((int) *s.buf)) s.buf++, s.len--;
+    return s;
+}
+SV sv_trim_right(SV s){
+    while (s.len > 0 && is_space((int) *(s.buf + s.len - 1))) s.len--;
+    return s;
+}

tests/03_sv_trim.c

@@ -0,0 +1,17 @@
+#define DEBUG
+#include "../include/sv.h"
+#include "../include/except.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int main(void){
+    const char *s = "Hello World";
+    const char *s1 = "   Hello World   ";
+    SV sv = sv_strn(s,strlen(s));
+    SV sv1 = sv_strn(s1,strlen(s1));
+    sv1 = sv_trim(sv1);
+    ASSERTED(strncmp(sv.buf,sv1.buf,sv1.len) == 0);
+    
+    return EXIT_SUCCESS;
+}

tests/04_sv_trim_left.c

@@ -0,0 +1,17 @@
+#define DEBUG
+#include "../include/sv.h"
+#include "../include/except.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int main(void){
+    const char *s = "Hello World";
+    const char *s1 = "   Hello World";
+    SV sv = sv_strn(s,strlen(s));
+    SV sv1 = sv_strn(s1,strlen(s1));
+    sv1 = sv_trim_left(sv1);
+    ASSERTED(strncmp(sv.buf,sv1.buf,sv1.len) == 0);
+    
+    return EXIT_SUCCESS;
+}

tests/05_sv_trim_right.c

@@ -0,0 +1,17 @@
+#define DEBUG
+#include "../include/sv.h"
+#include "../include/except.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int main(void){
+    const char *s = "Hello World";
+    const char *s1 = "Hello World   ";
+    SV sv = sv_strn(s,strlen(s));
+    SV sv1 = sv_strn(s1,strlen(s1));
+    sv1 = sv_trim_right(sv1);
+    ASSERTED(strncmp(sv.buf,sv1.buf,sv1.len) == 0);
+    
+    return EXIT_SUCCESS;
+}