2021-05-20 00:06:21 +00:00
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# gemtext2html
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# convierte un archivo en gemtext a html de acuerdo a la spec
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# excepción: enlaces a imagen (jpg, png, gif) se vuelven <img>
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#
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# modo de uso:
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# awk -f gemtext2html.awk archivo.gmi > archivo.html
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#
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2021-05-20 00:24:20 +00:00
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2021-05-20 00:06:21 +00:00
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BEGIN{
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# para poder abrir y cerrar <ul>, <pre>, <p>:
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modo_lista = 0
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modo_pre = 0
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modo_parrafo = 0
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bloque = 0 # para no agregar <br/> después de headers y blockquotes
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print "<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Transitional//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd'>"
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print "<html xmlns='http://www.w3.org/1999/xhtml' lang='es-MX'>"
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print "<head>"
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print "<meta http-equiv='Content-Type' content='text/html; charset=utf-8' />"
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print "<meta content='initial-scale=1.0, maximum-scale=1.0, user-scalable=yes' name='viewport'/>"
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2021-05-20 00:24:20 +00:00
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contenido = "<main>"
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nav = "<nav><ul>"
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}
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function appendContenido( t ){
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contenido = contenido t
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2021-05-20 00:06:21 +00:00
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}
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2021-05-20 00:24:20 +00:00
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function appendNav( t ){
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nav = nav t
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}
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2021-05-20 00:06:21 +00:00
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NR == 1{
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titulo = $0
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sub("#[[:blank:]]+","",titulo) #prefijo
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2021-05-20 00:24:20 +00:00
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print "<title>"titulo"</title>"
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2021-05-20 00:06:21 +00:00
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print "</head>"
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print "<body>"
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2021-05-20 00:24:20 +00:00
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print "<header>"
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print "<h1>"titulo"</h1>"
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print "</header>"
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2021-05-20 00:06:21 +00:00
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}
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$0 !~ /^(=>|```|#{1,3} |* |>|[[:blank:]]*$)/{ # líneas de texto (no "especiales")
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if(!modo_pre){
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if(!modo_parrafo){
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modo_parrafo = 1
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2021-05-20 00:24:20 +00:00
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appendContenido( "<p>" )
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}
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else # nueva línea en el mismo párrafo
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appendContenido( "<br/>" )
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}
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appendContenido( $0 )
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}
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/^[[:blank:]]*$/ { # línea vacía
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if( !modo_pre ) {
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if( modo_lista ){ # cierra la lista
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modo_lista = 0
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2021-05-20 00:24:20 +00:00
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appendContenido( "</ul>" )
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2021-05-20 00:06:21 +00:00
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}
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else if( modo_parrafo ){ # cierra el párrafo
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modo_parrafo = 0
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2021-05-20 00:24:20 +00:00
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appendContenido( "</p>" )
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2021-05-20 00:06:21 +00:00
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}
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else if( bloque ) # si lo previo fue header o blockquote
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bloque = 0;
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else
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appendContenido( "<br/>" )
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}
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else
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appendContenido( $0 )
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2021-05-20 00:06:21 +00:00
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}
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/^=>/{ # link
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if(!modo_pre){
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if( modo_lista ){ # cierra la lista
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modo_lista = 0
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2021-05-20 00:24:20 +00:00
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appendContenido( "</ul>" )
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2021-05-20 00:06:21 +00:00
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}
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else if( modo_parrafo ){ # cierra el párrafo
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modo_parrafo = 0
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2021-05-20 00:24:20 +00:00
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appendContenido( "</p>" )
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}
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# borra flecha del inicio
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sub("^=>","",$0)
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# ahora $1 es el path, $2 a $NF el texto
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# concatena todo el texto
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texto = $2
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for(i=3; i<=NF; i++){
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texto = texto" "$i
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}
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# si el path es imagen
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if( match($1, /(png|jpg|gif)$/) ){
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# crea imagen <img>
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$0="<img src='"$1"' alt='"texto"'/>"
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}
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# si el path no es imagen
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else{
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# convierte enlace de .gmi a .html !
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sub(".gmi$",".html",$1)
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# crea link <a>
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$0="<a href='"$1"'>"texto"</a><br/>"
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}
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}
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appendContenido( $0 )
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}
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/^* /{ # lista
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if(!modo_pre){
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if(!modo_lista){ # inicia la lista
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if(modo_parrafo){
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modo_parrafo = 0
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2021-05-20 00:24:20 +00:00
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appendContenido( "</p>" )
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}
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modo_lista = 1
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2021-05-20 00:24:20 +00:00
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appendContenido( "<ul>" )
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2021-05-20 00:06:21 +00:00
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}
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sub("*[[:blank:]]+","<li>",$0)
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sub("$","</li>",$0)
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}
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appendContenido( $0 )
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}
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/^```/{ # preformatted
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if(modo_pre){
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# cierra preformatted
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modo_pre = 0
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appendContenido( "</pre>" )
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}
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else{
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if( modo_lista ){ # cierra la lista
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modo_lista = 0
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2021-05-20 00:24:20 +00:00
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appendContenido( "</ul>" )
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}
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else if( modo_parrafo ){ # cierra el párrafo
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modo_parrafo = 0
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2021-05-20 00:24:20 +00:00
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appendContenido( "</p>" )
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}
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# abre preformatted
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modo_pre = 1
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appendContenido( "<pre>" )
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}
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}
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/^> /{ # blockquote
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if(!modo_pre){
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sub(">[[:blank:]]+","<blockquote>",$0)
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sub("$","</blockquote>",$0)
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bloque = 1
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}
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2021-05-20 00:24:20 +00:00
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appendContenido( $0 )
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}
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/^# /{ # h1
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if(!modo_pre){
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sub("#[[:blank:]]+","",$0) #prefijo
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sub("$","",$0) #sufijo
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bloque = 1
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}
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2021-05-20 00:25:35 +00:00
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appendNav( "<li><a href='#"$0"'>"$0"</a></li>" )
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appendContenido( "<h1 id='"$0"'>"$0"</h1>" )
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}
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/^## /{ # h2
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if(!modo_pre){
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sub("##[[:blank:]]+","<h2>",$0)
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sub("$","</h2>",$0)
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bloque = 1
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}
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2021-05-20 00:24:20 +00:00
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appendContenido( $0 )
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2021-05-20 00:06:21 +00:00
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}
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/^### /{ # h3
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if(!modo_pre){
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sub("###[[:blank:]]+","<h3>",$0)
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sub("$","</h3>",$0)
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bloque = 1
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}
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2021-05-20 00:24:20 +00:00
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appendContenido( $0 )
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2021-05-20 00:06:21 +00:00
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}
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END{
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print nav
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print "</ul></nav>"
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print contenido
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2021-05-20 00:06:21 +00:00
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# cierra tags que pudiero n haber quedado abiertas
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if(modo_pre)
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print "</pre>"
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else if(modo_parrafo)
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print "</p>"
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else if(modo_lista)
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print "</ul>"
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2021-05-20 00:24:20 +00:00
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print "</main>"
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print "<footer>"
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# TODO footer
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print "</footer>"
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print "</body>"
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print "</html>"
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}
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