@@
//identifier d_show =~ "^.*show.*$";
identifier d_show;
identifier arg1, arg2, arg3;
@@
ssize_t d_show(struct device *
-	arg1
+	dev
	, struct device_attribute *
-	arg2
+	attr
	, char *
-	arg3
+	buf
	)
{
	<...
(
-	arg1
+	dev
|
-	arg2
+	attr
|
-	arg3
+	buf
)
	...>
}

@@
//identifier d_show =~ "^.*show.*$";
identifier d_show;
identifier dev, attr, buf;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	return
-	sprintf(buf,
+	sysfs_emit(buf,
	...);
	...>
}

@@
//identifier d_show =~ "^.*show.*$";
identifier d_show;
identifier dev, attr, buf;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	return
-	snprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
}

@@
//identifier d_show =~ "^.*show.*$";
identifier d_show;
identifier dev, attr, buf;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	return
-	scnprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
}

@@
//identifier d_show =~ "^.*show.*$";
identifier d_show;
identifier dev, attr, buf;
expression chr;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	return
-	strcpy(buf, chr);
+	sysfs_emit(buf, chr);
	...>
}

@@
//identifier d_show =~ "^.*show.*$";
identifier d_show;
identifier dev, attr, buf;
identifier len;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	len =
-	sprintf(buf,
+	sysfs_emit(buf,
	...);
	...>
	return len;
}

@@
//identifier d_show =~ "^.*show.*$";
identifier d_show;
identifier dev, attr, buf;
identifier len;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	len =
-	snprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
	return len;
}

@@
//identifier d_show =~ "^.*show.*$";
identifier d_show;
identifier dev, attr, buf;
identifier len;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
	len =
-	scnprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
	return len;
}

@@
//identifier d_show =~ "^.*show.*$";
identifier d_show;
identifier dev, attr, buf;
identifier len;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	<...
-	len += scnprintf(buf + len, PAGE_SIZE - len,
+	len += sysfs_emit_at(buf, len,
	...);
	...>
	return len;
}

@@
//identifier d_show =~ "^.*show.*$";
identifier d_show;
identifier dev, attr, buf;
expression chr;
@@

ssize_t d_show(struct device *dev, struct device_attribute *attr, char *buf)
{
-	strcpy(buf, chr);
-	return strlen(buf);
+	return sysfs_emit(buf, chr);
}

@@
identifier k_show =~ "^.*show.*$";
identifier arg1, arg2, arg3;
@@
ssize_t k_show(struct kobject *
-	arg1
+	kobj
	, struct kobj_attribute *
-	arg2
+	attr
	, char *
-	arg3
+	buf
	)
{
	...
(
-	arg1
+	kobj
|
-	arg2
+	attr
|
-	arg3
+	buf
)
	...
}

@@
identifier k_show =~ "^.*show.*$";
identifier kobj, attr, buf;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	return
-	sprintf(buf,
+	sysfs_emit(buf,
	...);
	...>
}

@@
identifier k_show =~ "^.*show.*$";
identifier kobj, attr, buf;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	return
-	snprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
}

@@
identifier k_show =~ "^.*show.*$";
identifier kobj, attr, buf;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	return
-	scnprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
}

@@
identifier k_show =~ "^.*show.*$";
identifier kobj, attr, buf;
expression chr;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	return
-	strcpy(buf, chr);
+	sysfs_emit(buf, chr);
	...>
}

@@
identifier k_show =~ "^.*show.*$";
identifier kobj, attr, buf;
identifier len;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	len =
-	sprintf(buf,
+	sysfs_emit(buf,
	...);
	...>
	return len;
}

@@
identifier k_show =~ "^.*show.*$";
identifier kobj, attr, buf;
identifier len;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	len =
-	snprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
	return len;
}

@@
identifier k_show =~ "^.*show.*$";
identifier kobj, attr, buf;
identifier len;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
	len =
-	scnprintf(buf, PAGE_SIZE,
+	sysfs_emit(buf,
	...);
	...>
	return len;
}

@@
identifier k_show =~ "^.*show.*$";
identifier kobj, attr, buf;
identifier len;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
	<...
-	len += scnprintf(buf + len, PAGE_SIZE - len,
+	len += sysfs_emit_at(buf, len,
	...);
	...>
	return len;
}

@@
identifier k_show =~ "^.*show.*$";
identifier kobj, attr, buf;
expression chr;
@@

ssize_t k_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
-	strcpy(buf, chr);
-	return strlen(buf);
+	return sysfs_emit(buf, chr);
}

// Rename the sysfs_emit assigned variables not named len and not already int
// and set the name to len and type to int

@not_int_not_len exists@
type T != int;
identifier x != len;
position p;
identifier sysfs =~ "^sysfs_emit.*$";
assignment operator aop;
@@

T x@p;
...
x aop sysfs(...)
...

@@
type not_int_not_len.T;
identifier not_int_not_len.x;
position not_int_not_len.p;
@@

- T x@p;
+ int len;
  <...
- x
+ len
  ...>

// Rename the already int sysfs_emit assigned variables not named len
// and set the name to len

@int_not_len exists@
type T = int;
identifier x != len;
position p;
identifier sysfs =~ "^sysfs_emit.*$";
assignment operator aop;
@@

T x@p;
...
x aop sysfs(...)
...

@@
type int_not_len.T;
identifier int_not_len.x;
position int_not_len.p;
@@

- T x@p;
+ int len;
  <...
- x
+ len
  ...>

// Rename the non-int int sysfs_emit assigned variables named len
// and set the type to int

@not_int_has_len exists@
type T != int;
identifier x = len;
position p;
identifier sysfs =~ "^sysfs_emit.*$";
assignment operator aop;
@@

T x@p;
...
x aop sysfs(...)
...

@@
type not_int_has_len.T;
identifier not_int_has_len.x;
position not_int_has_len.p;
@@

- T x@p;
+ int len;