diff --git a/.gitignore b/.gitignore
index 895ba33..27945f1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -43,3 +43,4 @@ src/Makefile
 src/generarxml
 autom4te.cache
 *.tar.gz
+*.xml
diff --git a/Makefile.am b/Makefile.am
index 71117b7..d9b7970 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -4,4 +4,5 @@ SUBDIRS = src
 
 EXTRA_DIST = misc/Biblia.txt \
 	misc/config.dtd \
+	misc/generarxml.dtd \
 	misc/chris.conf
diff --git a/misc/generarxml.dtd b/misc/generarxml.dtd
new file mode 100644
index 0000000..8f2b3ea
--- /dev/null
+++ b/misc/generarxml.dtd
@@ -0,0 +1,16 @@
+<?xml encoding="UTF-8"?>
+
+<!ELEMENT Biblia (Libro) >
+<!ATTLIST Biblia xmlns CDATA #FIXED ''>
+
+<!ELEMENT Libro (Nombre,Capitulo)>
+<!ATTLIST Libro xmlns CDATA #FIXED ''>
+
+<!ELEMENT Capitulo (Nombre,Versiculo)>
+<!ATTLIST Capitulo xmlns CDATA #FIXED ''>
+
+<!ELEMENT Nombre (#PCDATA)>
+<!ATTLIST Nombre xmlns CDATA #FIXED ''>
+
+<!ELEMENT Versiculo (#PCDATA)>
+<!ATTLIST Versiculo xmlns CDATA #FIXED ''>
diff --git a/src/Makefile.am b/src/Makefile.am
index c3ecb61..fdb2043 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -7,6 +7,8 @@ generarxml_SOURCES = main.c \
 	readconfig.h \
 	readfile.c \
 	readfile.h \
+	makexml.c \
+	makexml.h \
 	encoding.c \
 	encoding.h
 generarxml_CPPFLAGS = $(XML_CPPFLAGS)
diff --git a/src/Makefile.in b/src/Makefile.in
index aaa1708..dc243ab 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -100,7 +100,7 @@ am__installdirs = "$(DESTDIR)$(bindir)"
 PROGRAMS = $(bin_PROGRAMS)
 am_generarxml_OBJECTS = generarxml-main.$(OBJEXT) \
 	generarxml-readconfig.$(OBJEXT) generarxml-readfile.$(OBJEXT) \
-	generarxml-encoding.$(OBJEXT)
+	generarxml-makexml.$(OBJEXT) generarxml-encoding.$(OBJEXT)
 generarxml_OBJECTS = $(am_generarxml_OBJECTS)
 am__DEPENDENCIES_1 =
 generarxml_DEPENDENCIES = $(am__DEPENDENCIES_1)
@@ -266,6 +266,8 @@ generarxml_SOURCES = main.c \
 	readconfig.h \
 	readfile.c \
 	readfile.h \
+	makexml.c \
+	makexml.h \
 	encoding.c \
 	encoding.h
 
@@ -360,6 +362,7 @@ distclean-compile:
 
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/generarxml-encoding.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/generarxml-main.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/generarxml-makexml.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/generarxml-readconfig.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/generarxml-readfile.Po@am__quote@
 
@@ -419,6 +422,20 @@ generarxml-readfile.obj: readfile.c
 @AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
 @am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(generarxml_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o generarxml-readfile.obj `if test -f 'readfile.c'; then $(CYGPATH_W) 'readfile.c'; else $(CYGPATH_W) '$(srcdir)/readfile.c'; fi`
 
+generarxml-makexml.o: makexml.c
+@am__fastdepCC_TRUE@	$(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(generarxml_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT generarxml-makexml.o -MD -MP -MF $(DEPDIR)/generarxml-makexml.Tpo -c -o generarxml-makexml.o `test -f 'makexml.c' || echo '$(srcdir)/'`makexml.c
+@am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/generarxml-makexml.Tpo $(DEPDIR)/generarxml-makexml.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='makexml.c' object='generarxml-makexml.o' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(generarxml_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o generarxml-makexml.o `test -f 'makexml.c' || echo '$(srcdir)/'`makexml.c
+
+generarxml-makexml.obj: makexml.c
+@am__fastdepCC_TRUE@	$(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(generarxml_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT generarxml-makexml.obj -MD -MP -MF $(DEPDIR)/generarxml-makexml.Tpo -c -o generarxml-makexml.obj `if test -f 'makexml.c'; then $(CYGPATH_W) 'makexml.c'; else $(CYGPATH_W) '$(srcdir)/makexml.c'; fi`
+@am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/generarxml-makexml.Tpo $(DEPDIR)/generarxml-makexml.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='makexml.c' object='generarxml-makexml.obj' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(generarxml_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o generarxml-makexml.obj `if test -f 'makexml.c'; then $(CYGPATH_W) 'makexml.c'; else $(CYGPATH_W) '$(srcdir)/makexml.c'; fi`
+
 generarxml-encoding.o: encoding.c
 @am__fastdepCC_TRUE@	$(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(generarxml_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT generarxml-encoding.o -MD -MP -MF $(DEPDIR)/generarxml-encoding.Tpo -c -o generarxml-encoding.o `test -f 'encoding.c' || echo '$(srcdir)/'`encoding.c
 @am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/generarxml-encoding.Tpo $(DEPDIR)/generarxml-encoding.Po
diff --git a/src/main.c b/src/main.c
index 8a69056..0ad9155 100644
--- a/src/main.c
+++ b/src/main.c
@@ -6,8 +6,9 @@
 #include "main.h"
 #include "readconfig.h"
 #include "readfile.h"
+#include "makexml.h"
 
-#ifdef LIBXML_TREE_ENABLED
+#if defined(LIBXML_TREE_ENABLED) && defined(LIBXML_OUTPUT_ENABLED)
 
 /*
  * This program is designed to take a text file and convert part of it into xml.
@@ -80,13 +81,25 @@ int main(int argc, char **argv) {
     config->chapter = NULL;
     config->chapter_numbers = NULL;
 
-    status = readconfig(config_file, config);
-    free(config_file);
-    config_file = NULL;
+    status = readconfig(config_file);
     if (status != 0) {
         return 1;
     }
 
+    if (strcmp(config->file, argv[0]) == 0 ||
+            strcmp(config->file, config_file) == 0 ||
+            strcmp(config->file, "Biblia.txt") == 0 ||
+            strcmp(config->file, "config.dtd") == 0 ||
+            strcmp(config->file, "generarxml.dtd") == 0) {
+        free(config_file);
+        config_file = NULL;
+        printf("Nombre de archivo de salida invalido!\n");
+        return 1;
+    }
+
+    free(config_file);
+    config_file = NULL;
+
     printf("Configuración:\n");
     printf("\tArchivo: %s\n", config->file);
     printf("\tBiblia: %s\n", config->bible);
@@ -95,12 +108,14 @@ int main(int argc, char **argv) {
     printf("\tNumeros de capitulo: %s\n", config->chapter_numbers);
 
     book = (BOOK *) malloc(sizeof(BOOK));
-    status = readfile(config, book);
+    status = readfile();
     if (status != 0) {
         printf("Falló leer Biblia.txt!\n");
         return 1;
     }
 
+    makexml();
+
     free(config->file);
     free(config->bible);
     free(config->book);
@@ -119,7 +134,7 @@ int main(int argc, char **argv) {
  * tree support enabled during compile.
  */
 int main(int argc, char *argv[]) {
-    fprintf(stderr, "libxml2 no tiene tree support compilado\n");
+    fprintf(stderr, "libxml2 no está configurado correctamente\n");
     return 1;
 }
 
diff --git a/src/main.h b/src/main.h
index 0a05dd8..021d48b 100644
--- a/src/main.h
+++ b/src/main.h
@@ -9,6 +9,7 @@ struct configuration {
 } typedef CONFIG;
 
 struct chapterdata {
+    int chapter;
     int current;
     int verses;
     char **verse;
diff --git a/src/makexml.c b/src/makexml.c
new file mode 100644
index 0000000..abbe081
--- /dev/null
+++ b/src/makexml.c
@@ -0,0 +1,67 @@
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <libxml/parser.h>
+#include <libxml/tree.h>
+#include "main.h"
+
+int makexml() {
+    int i = 0;
+    int length;
+    char *temp = NULL;
+    xmlDocPtr doc = NULL;
+    xmlNodePtr bibletag = NULL;
+    xmlNodePtr booktag  = NULL;
+    xmlNodePtr chaptertag = NULL;
+    xmlNodePtr versetag = NULL;
+    xmlNodePtr node = NULL;
+    xmlNodePtr text = NULL;
+    
+    LIBXML_TEST_VERSION;
+
+    doc = xmlNewDoc(BAD_CAST "1.0");
+    bibletag = xmlNewNode(NULL, BAD_CAST "Biblia");
+    xmlDocSetRootElement(doc, bibletag);
+
+    /* add dtd */
+    xmlCreateIntSubset(doc, BAD_CAST "Biblia", NULL, BAD_CAST "generarxml.dtd");
+
+    booktag = xmlNewNode(NULL, BAD_CAST "Libro");
+    xmlAddChild(bibletag, booktag);
+
+    node = xmlNewNode(NULL, BAD_CAST "Nombre");
+    text = xmlNewText(BAD_CAST config->book);
+    xmlAddChild(node, text);
+    xmlAddChild(booktag, node);
+
+    for (i = 0; i < book->chapters; i++) {
+        chaptertag = xmlNewNode(NULL, BAD_CAST "Capitulo");
+        xmlAddChild(booktag, chaptertag);
+
+        length = snprintf(NULL, 0, "%d", book->chapter[i]->chapter) + strlen(config->chapter);
+        temp = (char *) malloc((length + 2) * sizeof(char));
+        snprintf(temp, length + 2, "%s %d", config->chapter, book->chapter[i]->chapter);
+
+        node = xmlNewNode(NULL, BAD_CAST "Nombre");
+        text = xmlNewText(BAD_CAST temp);
+        xmlAddChild(node, text);
+        xmlAddChild(chaptertag, node);
+
+        versetag = xmlNewNode(NULL, BAD_CAST "Versiculo");
+        xmlAddChild(chaptertag, versetag);
+    }
+
+    #ifdef DEBUG
+        printf("XML output:\n");
+        xmlSaveFormatFileEnc("-", doc, "UTF-8", 1);
+    #endif
+
+    xmlSaveFormatFileEnc(config->file, doc, "UTF-8", 1);
+
+    /* cleanup on aisle 3 */
+    xmlFreeDoc(doc);
+    xmlCleanupParser();
+    xmlMemoryDump();
+    
+    return 0;
+}
diff --git a/src/makexml.h b/src/makexml.h
new file mode 100644
index 0000000..e0769ac
--- /dev/null
+++ b/src/makexml.h
@@ -0,0 +1 @@
+int makexml();
diff --git a/src/oldmakefile b/src/oldmakefile
deleted file mode 100644
index 057f1a2..0000000
--- a/src/oldmakefile
+++ /dev/null
@@ -1,39 +0,0 @@
-# Este makefile es el antiguo y mas limitado, no puede detectar el entorno para verificar que la compilación va a funcionar
-
-CC=gcc
-BINDIR=out
-SRCDIR=.
-EXTRADIR=../misc
-DEBUG_FLAGS=-Wall -Werror
-
-CFLAGS=$(DEBUG_FLAGS) -ggdb -Wconversion -std=c11 -D_DEFAULT_SOURCE $(shell pkg-config libxml-2.0 --cflags) -ansi
-LDFLAGS=$(shell pkg-config libxml-2.0 --libs)
-
-#CPPFLAGS
-#	DEBUG:			show debug information during runtime
-#	DEBUG_ENCODING:	show debug information related to encoding at runtime
-
-CPPFLAGS=-DDEBUG
-	
-BINARY=generarxml
-
-OBJS = \
-	$(SRCDIR)/main.o \
-	$(SRCDIR)/readconfig.o \
-	$(SRCDIR)/readfile.o \
-	$(SRCDIR)/encoding.o
-
-all:	bin
-
-bin:	$(OBJS)
-	[ -d "out" ] && echo ¨out already exists¨ || mkdir -v out
-	$(CC)$(xml2-config --cflags --libs) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) $(OBJS) -o $(BINDIR)/$(BINARY)
-	cp $(EXTRADIR)/*.conf $(BINDIR)/
-	cp $(EXTRADIR)/*.dtd $(BINDIR)/
-	cp $(EXTRADIR)/*.txt $(BINDIR)/
-
-clean:
-	rm -fR $(BINDIR) $(SRCDIR)/*.o
-
-%.o:	%.c
-	$(CC)$(xml2-config --cflags --libs) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) -c $< -o $@
diff --git a/src/readconfig.c b/src/readconfig.c
index 3e1c504..d009fbf 100644
--- a/src/readconfig.c
+++ b/src/readconfig.c
@@ -10,7 +10,7 @@
  * This function reads the designated config file and save into int the
  * config struct.
  */
-int readconfig(char *config_file, CONFIG *config) {
+int readconfig(char *config_file) {
     xmlParserCtxtPtr context;
     xmlDocPtr config_xml = NULL;
     xmlNodePtr root = NULL;
diff --git a/src/readconfig.h b/src/readconfig.h
index 6b5ba7f..f3eb377 100644
--- a/src/readconfig.h
+++ b/src/readconfig.h
@@ -1 +1 @@
-int readconfig(char *config_file, CONFIG *config);
+int readconfig(char *config_file);
diff --git a/src/readfile.c b/src/readfile.c
index f52acec..e6cfa80 100644
--- a/src/readfile.c
+++ b/src/readfile.c
@@ -8,7 +8,7 @@
 #include "readfile.h"
 #include "encoding.h"
 
-int readfile(CONFIG *config, BOOK *book) {
+int readfile() {
     FILE *file = NULL;
     CHAPTER *chapter = NULL;
     int start = 0;
@@ -124,7 +124,6 @@ int readfile(CONFIG *config, BOOK *book) {
         if (array[j] != NULL) {
             line = latin2utf8(array[j]);
         }
-        /* printf("  array [%lu]  %s\n", (long) j, line); */
         if (line != NULL) {
             if (strcmp(line, config->bible) == 0) {
                 matches[0] = true;
@@ -150,6 +149,7 @@ int readfile(CONFIG *config, BOOK *book) {
                     book->current++;
                     book->chapter[book->current] = (CHAPTER *) malloc(sizeof(CHAPTER));
                     chapter = book->chapter[book->current];
+                    chapter->chapter = i;
                     chapter->current = -1;
                     chapter->verses = 0;
                     chapter->verse = (char **) malloc(sizeof(char *));
@@ -187,7 +187,6 @@ int readfile(CONFIG *config, BOOK *book) {
                         l = 0;
                         temp = (char *) malloc((strlen(line) + 1) * sizeof(char));
                         for (k = i + 1; k < strlen(line) - 1; (k++)) {
-                            /*printf("i: %d k: %d chars: %d\n", i, k, strlen(line));*/
                             temp[l] = line[k];
                             l++;
                         }
@@ -199,8 +198,6 @@ int readfile(CONFIG *config, BOOK *book) {
                         chapter->verse[chapter->current] = (char *) malloc((strlen(temp) + 1) * sizeof(char));
                         memcpy(chapter->verse[chapter->current], temp, strlen(temp) + 1);
 
-                        /*printf("%d - %s\n", verse, chapter->verses[chapter->current]);*/
-
                         if (temp) {
                             free(temp);
                         }
diff --git a/src/readfile.h b/src/readfile.h
index 67b611b..a96fb89 100644
--- a/src/readfile.h
+++ b/src/readfile.h
@@ -1,2 +1,2 @@
 #define MAX_LINES 100
-int readfile(CONFIG *config, BOOK *book);
+int readfile();