More string and buffer functions.

[apps/madmutt.git] / lib-lib / buffer.h

diff --git a/lib-lib/buffer.h b/lib-lib/buffer.h
index f459618..b73e506 100644 (file)
--- a/lib-lib/buffer.h
+++ b/lib-lib/buffer.h
@@ -29,7 +29,88 @@
 #ifndef MUTT_LIB_LIB_BUFFER_H
 #define MUTT_LIB_LIB_BUFFER_H
 
 #ifndef MUTT_LIB_LIB_BUFFER_H
 #define MUTT_LIB_LIB_BUFFER_H
 

-#include "str.h"
+typedef struct buffer_t {
+    char *data;
+    ssize_t len;
+    ssize_t size;
+} buffer_t;
+
+DO_INIT(buffer_t, buffer);
+static inline void buffer_wipe(buffer_t *buf) {
+    p_delete(&buf->data);
+}
+DO_NEW(buffer_t, buffer);
+DO_DELETE(buffer_t, buffer);
+
+static inline char *buffer_unwrap(buffer_t **buf) {
+    char *res = (*buf)->data;
+    (*buf)->data = NULL;
+    buffer_delete(buf);
+    return res;
+}
+
+
+static inline void buffer_resize(buffer_t *buf, ssize_t newsize) {
+    p_allocgrow(&buf->data, newsize + 1, &buf->size);
+}
+static inline void buffer_ensure(buffer_t *buf, ssize_t extra) {
+    assert (extra >= 0);
+    if (buf->len + extra >= buf->size) {
+        buffer_resize(buf, buf->len + extra);
+    }
+}
+static inline void buffer_setlen(buffer_t *buf, ssize_t len) {
+    assert (buf->size > len);
+    buf->len = len;
+    buf->data[len] = '\0';
+}
+static inline void buffer_extend(buffer_t *buf, ssize_t extra) {
+    buffer_ensure(buf, extra);
+    buf->len += extra;
+    buf->data[buf->len] = '\0';
+}
+static inline void buffer_extendch(buffer_t *buf, ssize_t extra, int c) {
+    buffer_ensure(buf, extra);
+    memset(buf->data + buf->len, c, extra);
+    buf->len += extra;
+    buf->data[buf->len] = '\0';
+}
+
+
+static inline void buffer_add(buffer_t *buf, const void *data, ssize_t len) {
+    buffer_ensure(buf, len);
+    memcpy(buf->data + buf->len, data, len);
+    buf->len += len;
+    buf->data[buf->len] = '\0';
+}
+static inline void buffer_addstr(buffer_t *buf, const char *s) {
+    buffer_add(buf, s, m_strlen(s));
+}
+static inline void buffer_addbuf(buffer_t *buf, buffer_t *buf2) {
+    buffer_add(buf, buf2->data, buf2->len);
+}
+static inline void buffer_addch(buffer_t *buf, int c) {
+    buffer_extendch(buf, 1, c);
+}
+
+static inline void buffer_reset(buffer_t *buf) {
+    if (buf->len) {
+        buf->len = 0;
+        buf->data[0] = '\0';
+    }
+}
+
+void buffer_splice(buffer_t *, ssize_t pos, ssize_t len, const void *, ssize_t);
+void buffer_consume_upto(buffer_t *, const char *s);
+
+ssize_t buffer_addvf(buffer_t *buf, const char *fmt, va_list)
+    __attribute__((format(printf, 2, 0)));
+
+ssize_t buffer_addf(buffer_t *buf, const char *fmt, ...)
+    __attribute__((format(printf, 2, 3)));
+
+
+/****** LEGACY BUFFERS *******/

 
 typedef struct {
     char *data;          /* pointer to data */
 
 typedef struct {
     char *data;          /* pointer to data */