Initial commit

eebie/ebml.h

@@ -0,0 +1,28 @@
+#ifndef EEBIE_H
+#define EEBIE_H
+
+#include<stdint.h>
+
+typedef enum EBMLElementType {
+	EBML_SIGNED_INTEGER,
+	EBML_UNSIGNED_INTEGER,
+	EBML_FLOAT4,
+	EBML_FLOAT8,
+	EBML_STRING,
+	EBML_UTF8,
+	EBML_DATE,
+	EBML_TREE,
+	EBML_BINARY,
+} EBMLElementType;
+
+typedef union EBMLPrimitive {
+	int64_t sInt;
+	uint64_t uInt;
+	float flt4;
+	double flt8;
+	const char *string;
+	const uint8_t *binary;
+	uint64_t date;
+} EBMLPrimitive;
+
+#endif

eebie/reader.c

@@ -0,0 +1,175 @@
+#include<stddef.h>
+#include<stdint.h>
+#include<stdlib.h>
+#include<string.h>
+#include<endian.h>
+#include<stdio.h>
+
+#include"ebml.h"
+
+#include"reader.h"
+
+void ebml_reader_init(EBMLReader *this) {
+	memset(this, 0, sizeof(*this));
+	this->state = EBMLRS_WAITING_FOR_ELEMENT_ID;
+	this->currentDepth = 0;
+}
+
+static uint64_t VARINT_MASKS[] = {0, 0x80L, 0xC000L, 0xE00000L, 0xF0000000L, 0xF800000000L, 0xFC0000000000L, 0xFE000000000000L, 0L};
+
+#define I(x) ((uint64_t)(x))
+static int read_varint(const uint8_t *data, size_t length, uint64_t *result) {
+	if(data[0] & 0x80) {
+		*result = data[0];
+		
+		return 1;
+	} else if(data[0] & 0xC0) {
+		if(length < 2) {
+			return 0;
+		}
+		
+		*result = (I(data[0]) << 8) | data[1];
+		
+		return 2;
+	} else if(data[0] & 0xE0) {
+		if(length < 3) {
+			return 0;
+		}
+		
+		*result = (I(data[0]) << 16) | (I(data[1]) << 8) | data[2];
+		
+		return 3;
+	} else if(data[0] & 0xF0) {
+		if(length < 4) {
+			return 0;
+		}
+		
+		*result = (I(data[0]) << 24) | (I(data[1]) << 16) | (I(data[2]) << 8) | data[3];
+		
+		return 4;
+	} else if(data[0] & 0xF8) {
+		if(length < 5) {
+			return 0;
+		}
+		
+		*result = (I(data[0]) << 32) | (I(data[1]) << 24) | (I(data[2]) << 16) | (I(data[3]) << 8) | data[4];
+		
+		return 5;
+	} else if(data[0] & 0xFC) {
+		if(length < 6) {
+			return 0;
+		}
+		
+		*result = (I(data[0]) << 40) | (I(data[1]) << 32) | (I(data[2]) << 24) | (I(data[3]) << 16) | (I(data[4]) << 8) | data[5];
+		
+		return 6;
+	} else if(data[0] & 0xFE) {
+		if(length < 7) {
+			return 0;
+		}
+		
+		*result = (I(data[0]) << 48) | (I(data[1]) << 40) | (I(data[2]) << 32) | (I(data[3]) << 24) | (I(data[4]) << 16) | (I(data[5]) << 8) | data[6];
+		
+		return 7;
+	} else if(data[0] == 0x01) {
+		if(length < 8) {
+			return 0;
+		}
+		
+		*result = (I(data[1]) << 48) | (I(data[2]) << 40) | (I(data[3]) << 32) | (I(data[4]) << 24) | (I(data[5]) << 16) | (I(data[6]) << 8) | data[7];
+		
+		return 8;
+	}
+	
+	return -1;
+}
+
+static int get_varint(const uint8_t *data, size_t length, uint64_t *result) {
+	int ret = read_varint(data, length, result);
+	
+	if(ret >= 0) {
+		*result &= ~VARINT_MASKS[ret];
+	}
+	
+	return ret;
+}
+
+int ebml_reader_feed(EBMLReader *this, const uint8_t *data, size_t length) {
+	if(length == 0) {
+		return 0;
+	}
+	
+	size_t eaten = -1;
+	
+	if(this->state == EBMLRS_WAITING_FOR_ELEMENT_ID) {
+		
+		uint64_t elId;
+		
+		int status = read_varint(data, length, &elId);
+		
+		if(status <= 0) {
+			return status;
+		}
+		
+		this->state = EBMLRS_WAITING_FOR_ELEMENT_LENGTH;
+		this->inside.id = elId;
+		
+		eaten = status;
+		
+	} else if(this->state == EBMLRS_WAITING_FOR_ELEMENT_LENGTH) {
+		
+		uint64_t elLength;
+		
+		int status = get_varint(data, length, &elLength);
+		
+		if(status <= 0) {
+			return status;
+		}
+		
+		this->inside.type = this->eventEnterElement(this, this->inside.id, elLength);
+		
+		if(this->inside.type == EBML_TREE) {
+			this->state = EBMLRS_WAITING_FOR_ELEMENT_ID;
+		} else {
+			this->state = EBMLRS_WAITING_FOR_ELEMENT_DATA;
+			
+			this->inside.length = elLength;
+		}
+		
+		this->idStack[this->currentDepth] = this->inside.id;
+		this->stack[this->currentDepth] = elLength + status;
+		
+		this->currentDepth++;
+		
+		eaten = status;
+		
+	} else if(this->state == EBMLRS_WAITING_FOR_ELEMENT_DATA) {
+	
+		size_t realLen = this->stack[this->currentDepth - 1] < length ? this->stack[this->currentDepth - 1] : length;
+		
+		if(this->eventDataChunk) {
+			this->eventDataChunk(this, data, realLen);
+		}
+		
+		eaten = realLen;
+		
+	}
+	
+	for(int i = 0; i < this->currentDepth; i++) {
+		this->stack[i] -= eaten;
+	}
+	
+	while(this->currentDepth > 0 && this->stack[this->currentDepth - 1] == 0) {
+		
+		if(this->eventExitElement) {
+			this->eventExitElement(this);
+		}
+		
+		this->currentDepth--;
+		
+		this->state = EBMLRS_WAITING_FOR_ELEMENT_ID;
+		
+	}
+	
+	return eaten;
+}

eebie/reader.h

@@ -0,0 +1,45 @@
+#ifndef EEBIE_READER_H
+#define EEBIE_READER_H
+
+#define EBML_READ_MAXIMUM_DEPTH 128
+
+#include"ebml.h"
+
+enum EBMLReaderState {
+	EBMLRS_WAITING_FOR_ELEMENT_ID,
+	EBMLRS_WAITING_FOR_ELEMENT_LENGTH,
+	EBMLRS_WAITING_FOR_ELEMENT_DATA,
+};
+
+struct EBMLReader;
+
+typedef EBMLElementType(*EBMLEventEnterElement)(struct EBMLReader*, uint64_t id, uint64_t length);
+typedef void(*EBMLEventDataChunk)(struct EBMLReader*, const uint8_t *data, size_t length);
+typedef void(*EBMLEventExitElement)(struct EBMLReader*);
+
+typedef struct EBMLReader {
+	enum EBMLReaderState state;
+	union {
+		struct {
+			uint64_t id;
+			uint64_t length;
+			
+			EBMLElementType type;
+		} inside;
+	};
+	
+	int currentDepth;
+	uint64_t stack[EBML_READ_MAXIMUM_DEPTH];
+	uint64_t idStack[EBML_READ_MAXIMUM_DEPTH];
+	
+	EBMLEventEnterElement eventEnterElement;
+	EBMLEventDataChunk eventDataChunk;
+	EBMLEventExitElement eventExitElement;
+	
+	void *ud;
+} EBMLReader;
+
+void ebml_reader_init(EBMLReader *this);
+int ebml_reader_feed(EBMLReader *this, const uint8_t *data, size_t length);
+
+#endif

eebie/writer.c

@@ -0,0 +1,112 @@
+#include"writer.h"
+
+#include<string.h>
+#include<endian.h>
+#include<stdlib.h>
+
+static uint64_t VARINT_MASKS[] = {0, 0x80L, 0xC000L, 0xE00000L, 0xF0000000L, 0xF800000000L, 0xFC0000000000L, 0xFE000000000000L, 0L};
+
+static int byte_length(uint64_t i) {
+	if(i == 0) return 1;
+	
+	int n = 0;
+	while(i) {
+		i >>= 8;
+		n++;
+	}
+	return n;
+}
+
+static int bit_length(uint64_t i) {
+	if(i == 0) return 1;
+	
+	int n = 0;
+	while(i) {
+		i >>= 1;
+		n++;
+	}
+	
+	return n;
+}
+
+static uint64_t encode_int(uint64_t i) {
+	return i | VARINT_MASKS[(bit_length(i) + 6) / 7];
+}
+
+static void advance(EBMLWriter *this, uint64_t amount) {
+	for(int i = 0; i < this->currentDepth; i++) {
+		this->stack[i] += amount;
+	}
+}
+
+static void add(EBMLWriter *this, const void *data, size_t length) {
+	if(this->bufferLen + length > this->bufferCapacity) {
+		this->buffer = realloc(this->buffer, (this->bufferLen + length + 1023) & ~1023);
+	}
+	
+	memcpy(this->buffer + this->bufferLen, data, length);
+	
+	this->bufferLen += length;
+	
+	advance(this, length);
+}
+
+static void add_varint(EBMLWriter *this, uint64_t i) {
+	int len = byte_length(i);
+	
+	i = htobe64(i);
+	
+	add(this, (uint8_t*) &i + 8 - len, len);
+}
+
+void ebml_writer_init(EBMLWriter *this) {
+	memset(this, 0, sizeof(EBMLWriter));
+	
+	this->buffer = calloc(this->bufferCapacity = 1024, 1);
+}
+
+void ebml_writer_push(EBMLWriter *this, uint64_t id) {
+	add_varint(this, id);
+	
+	add(this, &(uint64_t) {htobe64(0x0100000000000000L)}, sizeof(uint64_t)); // LENGTH OF MAX SIZE (BECAUSE UNKNOWN)
+	
+	this->stack[this->currentDepth++] = 0;
+}
+
+void ebml_writer_pop(EBMLWriter *this) {
+}
+
+void ebml_writer_put(EBMLWriter *this, uint64_t id, EBMLElementType type, EBMLPrimitive primitive) {
+	add_varint(this, id);
+	
+	int len = byte_length(id);
+	
+	if(type == EBML_UNSIGNED_INTEGER) {
+		len = byte_length(primitive.uInt);
+	} else if(type == EBML_FLOAT4) {
+		len = 4;
+	} else if(type == EBML_FLOAT8) {
+		len = 8;
+	} else if(type == EBML_STRING) {
+		len = strlen(primitive.string);
+	} else if(type == EBML_DATE) {
+		len = 8;
+	} else abort();
+	
+	add_varint(this, encode_int(len));
+	
+	if(type == EBML_UNSIGNED_INTEGER) {
+		primitive.uInt = htobe64(primitive.uInt);
+		add(this, (uint8_t*) &primitive.uInt + 8 - len, len);
+	} else if(type == EBML_FLOAT4) {
+		uint32_t fl = *(uint32_t*) &primitive.flt4;
+		add(this, &fl, 4);
+	} else if(type == EBML_FLOAT8) {
+		uint64_t fl = *(uint64_t*) &primitive.flt8;
+		add(this, &fl, 8);
+	} else if(type == EBML_STRING) {
+		add(this, primitive.string, len);
+	} else if(type == EBML_DATE) {
+		add(this, &primitive.date, 8);
+	} else abort();
+}

eebie/writer.h

@@ -0,0 +1,32 @@
+#ifndef EEBIE_WRITER_H
+#define EEBIE_WRITER_H
+
+#include"ebml.h"
+
+#include<stddef.h>
+
+#define EBML_WRITE_MAXIMUM_DEPTH 128
+
+typedef size_t(*EBMLWriteCallback)(void *ud, const void *data, size_t length);
+
+typedef struct {
+	int currentDepth;
+	uint64_t stack[EBML_WRITE_MAXIMUM_DEPTH];
+	
+	EBMLWriteCallback callbackWrite;
+	
+	uint8_t *buffer;
+	size_t bufferLen;
+	size_t bufferCapacity;
+	
+	void *ud;
+} EBMLWriter;
+
+void ebml_writer_init(EBMLWriter *this);
+
+void ebml_writer_push(EBMLWriter *this, uint64_t id);
+void ebml_writer_pop(EBMLWriter *this);
+
+void ebml_writer_put(EBMLWriter *this, uint64_t id, EBMLElementType type, EBMLPrimitive primitive);
+
+#endif

schemagen/ezxml.h

@@ -0,0 +1,167 @@
+/* ezxml.h
+ *
+ * Copyright 2004-2006 Aaron Voisine <aaron@voisine.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _EZXML_H
+#define _EZXML_H
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <fcntl.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define EZXML_BUFSIZE 1024 // size of internal memory buffers
+#define EZXML_NAMEM   0x80 // name is malloced
+#define EZXML_TXTM    0x40 // txt is malloced
+#define EZXML_DUP     0x20 // attribute name and value are strduped
+
+typedef struct ezxml *ezxml_t;
+struct ezxml {
+    char *name;      // tag name
+    char **attr;     // tag attributes { name, value, name, value, ... NULL }
+    char *txt;       // tag character content, empty string if none
+    size_t off;      // tag offset from start of parent tag character content
+    ezxml_t next;    // next tag with same name in this section at this depth
+    ezxml_t sibling; // next tag with different name in same section and depth
+    ezxml_t ordered; // next tag, same section and depth, in original order
+    ezxml_t child;   // head of sub tag list, NULL if none
+    ezxml_t parent;  // parent tag, NULL if current tag is root tag
+    short flags;     // additional information
+};
+
+// Given a string of xml data and its length, parses it and creates an ezxml
+// structure. For efficiency, modifies the data by adding null terminators
+// and decoding ampersand sequences. If you don't want this, copy the data and
+// pass in the copy. Returns NULL on failure.
+ezxml_t ezxml_parse_str(char *s, size_t len);
+
+// A wrapper for ezxml_parse_str() that accepts a file descriptor. First
+// attempts to mem map the file. Failing that, reads the file into memory.
+// Returns NULL on failure.
+ezxml_t ezxml_parse_fd(int fd);
+
+// a wrapper for ezxml_parse_fd() that accepts a file name
+ezxml_t ezxml_parse_file(const char *file);
+    
+// Wrapper for ezxml_parse_str() that accepts a file stream. Reads the entire
+// stream into memory and then parses it. For xml files, use ezxml_parse_file()
+// or ezxml_parse_fd()
+ezxml_t ezxml_parse_fp(FILE *fp);
+
+// returns the first child tag (one level deeper) with the given name or NULL
+// if not found
+ezxml_t ezxml_child(ezxml_t xml, const char *name);
+
+// returns the next tag of the same name in the same section and depth or NULL
+// if not found
+#define ezxml_next(xml) ((xml) ? xml->next : NULL)
+
+// Returns the Nth tag with the same name in the same section at the same depth
+// or NULL if not found. An index of 0 returns the tag given.
+ezxml_t ezxml_idx(ezxml_t xml, int idx);
+
+// returns the name of the given tag
+#define ezxml_name(xml) ((xml) ? xml->name : NULL)
+
+// returns the given tag's character content or empty string if none
+#define ezxml_txt(xml) ((xml) ? xml->txt : "")
+
+// returns the value of the requested tag attribute, or NULL if not found
+const char *ezxml_attr(ezxml_t xml, const char *attr);
+
+// Traverses the ezxml sturcture to retrieve a specific subtag. Takes a
+// variable length list of tag names and indexes. The argument list must be
+// terminated by either an index of -1 or an empty string tag name. Example: 
+// title = ezxml_get(library, "shelf", 0, "book", 2, "title", -1);
+// This retrieves the title of the 3rd book on the 1st shelf of library.
+// Returns NULL if not found.
+ezxml_t ezxml_get(ezxml_t xml, ...);
+
+// Converts an ezxml structure back to xml. Returns a string of xml data that
+// must be freed.
+char *ezxml_toxml(ezxml_t xml);
+
+// returns a NULL terminated array of processing instructions for the given
+// target
+const char **ezxml_pi(ezxml_t xml, const char *target);
+
+// frees the memory allocated for an ezxml structure
+void ezxml_free(ezxml_t xml);
+    
+// returns parser error message or empty string if none
+const char *ezxml_error(ezxml_t xml);
+
+// returns a new empty ezxml structure with the given root tag name
+ezxml_t ezxml_new(const char *name);
+
+// wrapper for ezxml_new() that strdup()s name
+#define ezxml_new_d(name) ezxml_set_flag(ezxml_new(strdup(name)), EZXML_NAMEM)
+
+// Adds a child tag. off is the offset of the child tag relative to the start
+// of the parent tag's character content. Returns the child tag.
+ezxml_t ezxml_add_child(ezxml_t xml, const char *name, size_t off);
+
+// wrapper for ezxml_add_child() that strdup()s name
+#define ezxml_add_child_d(xml, name, off) \
+    ezxml_set_flag(ezxml_add_child(xml, strdup(name), off), EZXML_NAMEM)
+
+// sets the character content for the given tag and returns the tag
+ezxml_t ezxml_set_txt(ezxml_t xml, const char *txt);
+
+// wrapper for ezxml_set_txt() that strdup()s txt
+#define ezxml_set_txt_d(xml, txt) \
+    ezxml_set_flag(ezxml_set_txt(xml, strdup(txt)), EZXML_TXTM)
+
+// Sets the given tag attribute or adds a new attribute if not found. A value
+// of NULL will remove the specified attribute. Returns the tag given.
+ezxml_t ezxml_set_attr(ezxml_t xml, const char *name, const char *value);
+
+// Wrapper for ezxml_set_attr() that strdup()s name/value. Value cannot be NULL
+#define ezxml_set_attr_d(xml, name, value) \
+    ezxml_set_attr(ezxml_set_flag(xml, EZXML_DUP), strdup(name), strdup(value))
+
+// sets a flag for the given tag and returns the tag
+ezxml_t ezxml_set_flag(ezxml_t xml, short flag);
+
+// removes a tag along with its subtags without freeing its memory
+ezxml_t ezxml_cut(ezxml_t xml);
+
+// inserts an existing tag into an ezxml structure
+ezxml_t ezxml_insert(ezxml_t xml, ezxml_t dest, size_t off);
+
+// Moves an existing tag to become a subtag of dest at the given offset from
+// the start of dest's character content. Returns the moved tag.
+#define ezxml_move(xml, dest, off) ezxml_insert(ezxml_cut(xml), dest, off)
+
+// removes a tag along with all its subtags
+#define ezxml_remove(xml) ezxml_free(ezxml_cut(xml))
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _EZXML_H

schemagen/schemagen.c

@@ -0,0 +1,150 @@
+#include<stdio.h>
+
+#include"ezxml.h"
+
+#include<ctype.h>
+#include<stdlib.h>
+#include<string.h>
+
+int main(int argc, char **argv) {
+	ezxml_t schema = ezxml_parse_file(argv[1]);
+	
+	char *Name = strdup(argv[2]);
+	
+	char *NAME = strdup(Name);
+	for(char *c = NAME; *c; c++) {
+		*c = toupper(*c);
+	}
+	
+	char *name = strdup(Name);
+	for(char *c = name; *c; c++) {
+		*c = tolower(*c);
+	}
+	
+	printf("#ifndef %s_PARSER_H\n", NAME);
+	printf("#define %s_PARSER_H\n", NAME);
+	
+	printf("#include<stdint.h>\n");
+	printf("#include<stddef.h>\n");
+	printf("#include<stdlib.h>\n");
+	printf("#include<string.h>\n");
+	
+	printf("#include\"reader.h\"\n");
+	
+	for(ezxml_t el = ezxml_child(schema, "element"); el; el = el->next) {
+		printf("#define %s_%s %sL\n", NAME, ezxml_attr(el, "name"), ezxml_attr(el, "id"));
+	}
+	
+	printf("typedef struct %sParser {\n", Name);
+	printf("\tvoid *ud;\n");
+	printf("\tuint8_t *accum;\n");
+	printf("\tsize_t accumLen;\n");
+	printf("\tEBMLReader ebml;\n");
+	for(ezxml_t el = ezxml_child(schema, "element"); el; el = el->next) {
+		const char *type = ezxml_attr(el, "type");
+		
+		if(!strcmp(type, "master")) {
+			printf("\tvoid(*On%s)(struct %sParser*);\n", ezxml_attr(el, "name"), Name);
+		} else if(!strcmp(type, "uinteger")) {
+			printf("\tvoid(*On%s)(struct %sParser*, uint64_t value);\n", ezxml_attr(el, "name"), Name);
+		} else if(!strcmp(type, "integer")) {
+			printf("\tvoid(*On%s)(struct %sParser*, int64_t value);\n", ezxml_attr(el, "name"), Name);
+		} else if(!strcmp(type, "date")) {
+			printf("\tvoid(*On%s)(struct %sParser*, int64_t value);\n", ezxml_attr(el, "name"), Name);
+		} else if(!strcmp(type, "float")) {
+			printf("\tvoid(*On%s)(struct %sParser*, double value);\n", ezxml_attr(el, "name"), Name);
+		} else {
+			if(strcmp(type, "binary") && strcmp(type, "utf-8") && strcmp(type, "string")) {
+				fprintf(stderr, "Interpreting unknown element type \"%s\" as binary\n", type);
+			}
+			printf("\tvoid(*On%s)(struct %sParser*, const uint8_t *data, size_t length);\n", ezxml_attr(el, "name"), Name);
+		}
+	}
+	printf("} %sParser;\n", Name);
+	
+	printf("void %s_parser_init(%sParser*);\n", name, Name);
+	printf("size_t %s_parser_feed(%sParser*, const uint8_t *data, size_t length);\n", name, Name);
+	
+	printf("#ifdef %s_PARSER_IMPLEMENTATION\n", NAME);
+	
+	printf("EBMLElementType %s_event_enter_element(EBMLReader *rdr, uint64_t id, uint64_t length) {\n", name);
+	printf("\t%sParser *self = rdr->ud;\n", Name);
+	for(ezxml_t el = ezxml_child(schema, "element"); el; el = el->next) {
+		const char *type = ezxml_attr(el, "type");
+		
+		if(!strcmp(type, "master")) {
+			printf("\tif(id == %s_%s) {\n", NAME, ezxml_attr(el, "name"));
+			printf("\t\tif(self->On%s) self->On%s(self);\n", ezxml_attr(el, "name"), ezxml_attr(el, "name"));
+			printf("\t\treturn EBML_TREE;\n");
+			printf("\t}\n");
+		}
+	}
+	printf("\treturn EBML_BINARY;\n");
+	printf("}\n");
+	
+	printf("void %s_event_data_chunk(EBMLReader *rdr, const uint8_t *data, uint64_t length) {\n", name);
+	printf("\t%sParser *self = rdr->ud;\n", Name);
+	printf("\tself->accum = realloc(self->accum, self->accumLen + length);\n");
+	printf("\tmemcpy(self->accum + self->accumLen, data, length);\n");
+	printf("\tself->accumLen += length;\n");
+	printf("}\n");
+	
+	printf("void %s_event_exit_element(EBMLReader *rdr) {\n", name);
+	printf("\t%sParser *self = rdr->ud;\n", Name);
+	printf("\tuint64_t id = rdr->idStack[rdr->currentDepth - 1];\n");
+	for(ezxml_t el = ezxml_child(schema, "element"); el; el = el->next) {
+		const char *type = ezxml_attr(el, "type");
+		
+		printf("\tif(id == %s_%s) {\n", NAME, ezxml_attr(el, "name"));
+		
+		if(!strcmp(type, "uinteger") || !strcmp(type, "integer") || !strcmp(type, "date")) {
+			printf("\t\t%s val = 0;\n", !strcmp(type, "uinteger") ? "uint64_t" : "int64_t");
+			printf("\t\tmemcpy((uint8_t*) &val + 8 - self->accumLen, self->accum, self->accumLen);\n");
+			printf("\t\tval = be64toh(val);\n");
+			printf("\t\tif(self->On%s) self->On%s(self, val);\n", ezxml_attr(el, "name"), ezxml_attr(el, "name"));
+		} else if(!strcmp(type, "string") || !strcmp(type, "utf-8") || !strcmp(type, "binary")) {
+			if(strcmp(type, "binary") != 0) {
+				printf("\t\tself->accum = realloc(self->accum, self->accumLen + 1);\n");
+				printf("\t\tself->accum[self->accumLen] = 0;\n");
+			}
+			printf("\t\tif(self->On%s) self->On%s(self, self->accum, self->accumLen);\n", ezxml_attr(el, "name"), ezxml_attr(el, "name"));
+		} else if(!strcmp(type, "float")) {
+			printf("\t\tdouble val;\n");
+			printf("\t\tif(self->accumLen == 4) {\n");
+			printf("\t\t\tfloat fval;\n");
+			printf("\t\t\tmemcpy(&fval, self->accum, 4);\n");
+			printf("\t\t\t*(uint32_t*) &fval = be32toh(*(uint32_t*) &fval);\n");
+			printf("\t\t\tval = fval;\n");
+			printf("\t\t} else {\n");
+			printf("\t\t\tmemcpy(&val, self->accum, 8);\n");
+			printf("\t\t\t*(uint64_t*) &val = be64toh(*(uint64_t*) &val);\n");
+			printf("\t\t}\n");
+			printf("\t\tif(self->On%s) self->On%s(self, val);\n", ezxml_attr(el, "name"), ezxml_attr(el, "name"));
+		} else if(!strcmp(type, "master")) {
+			// Do nothing.
+		} else {
+			fprintf(stderr, "Ignoring unknown type \"%s\"\n", type);
+		}
+		
+		printf("\t}\n");
+	}
+	printf("\tfree(self->accum); self->accum = NULL; self->accumLen = 0;\n");
+	printf("}\n");
+	
+	printf("void %s_parser_init(%sParser *self) {\n", name, Name);
+	printf("\tmemset(self, 0, sizeof(*self));\n");
+	printf("\tebml_reader_init(&self->ebml);\n");
+	printf("\tself->ebml.eventEnterElement = %s_event_enter_element;\n", name);
+	printf("\tself->ebml.eventDataChunk = %s_event_data_chunk;\n", name);
+	printf("\tself->ebml.eventExitElement = %s_event_exit_element;\n", name);
+	printf("\tself->ebml.ud = self;\n");
+	printf("}\n");
+	
+	printf("size_t %s_parser_feed(%sParser *self, const uint8_t *data, size_t length) {\n", name, Name);
+	printf("\treturn ebml_reader_feed(&self->ebml, data, length);\n");
+	printf("}\n");
+	
+	printf("#endif\n");
+	
+	printf("#endif\n");
+}