libstr

commit fd80a2a08462fc3f9b0bbbbed96fb53bd73e11da
Author: Sophie <sophie@aest.me>
Date:   Wed, 25 Sep 2024 11:47:51 +0200

feat: Initial commit

Diffstat:
A
Makefile
 | 
18
++++++++++++++++++
A
README.md
 | 
9
+++++++++
A
libstr.c
 | 
46
++++++++++++++++++++++++++++++++++++++++++++++
A
libstr.h
 | 
6
++++++

4 files changed, 79 insertions(+), 0 deletions(-)
diff --git a/Makefile b/Makefile
@@ -0,0 +1,18 @@
+default: build
+
+build:
+	cc -o libstr.so -shared -fPIC -lpthread -lssl -Wall -Wextra libstr.c
+
+install:
+	cc -o libstr.so -shared -fPIC libstr.c
+	sudo cp libstr.h /usr/local/include/
+	sudo cp libstr.so /usr/local/lib/
+	sudo ldconfig
+	rm libstr.so
+
+uninstall:
+	sudo rm /usr/local/include/libstr.h
+	sudo rm /usr/local/lib/libstr.so
+
+clean:
+	rm libstr.so
diff --git a/README.md b/README.md
@@ -0,0 +1,9 @@
+# libstr
+
+A util library for dealing with strings in C
+
+## Installation
+
+```
+sudo make install
+```
diff --git a/libstr.c b/libstr.c
@@ -0,0 +1,46 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+#include "libstr.h"
+
+void str_append_len(char **buffer, char *value, int len) {
+  int buffer_len = 0;
+  if (*buffer != NULL) {
+    buffer_len = strlen(*buffer);
+  }
+  *buffer = realloc(*buffer, sizeof(char) * (buffer_len + len + 1));
+  memcpy(*buffer + buffer_len, value, len);
+  (*buffer)[buffer_len + len] = '\0';
+}
+
+void str_append(char **buffer, char *value) {
+  int len = strlen(value);
+  str_append_len(buffer, value, len);
+}
+
+void str_appendf(char **buffer, const char *format, ...) {
+  va_list args;
+  va_start(args, format);
+  char str[1000];
+  vsnprintf(str, sizeof(str), format, args);
+  str_append(buffer, str);
+  va_end(args);
+}
+
+char *str_replace_all(char *buffer, char *str, char *replacement) {
+  char *result = NULL;
+  int str_len = strlen(str);
+  for (int i = 0; i < (int) strlen(buffer); i++) {
+    char *ptr = &buffer[i];
+    if (strncmp(ptr, str, str_len) == 0) {
+      str_append(&result, replacement);
+      i += str_len - 1;
+    }
+    else {
+      str_append_len(&result, &buffer[i], 1);
+    }
+  }
+  return result;
+}
diff --git a/libstr.h b/libstr.h
@@ -0,0 +1,6 @@
+#pragma once
+
+void str_append_len(char **buffer, char *value, int len);
+void str_append(char **buffer, char *value);
+void str_appendf(char **buffer, const char *format, ...);
+char *str_replace_all(char *buffer, char *str, char *replacement);