<!-- ============================================================= -->
<!--             Recipe Markup Language (RecipeML)  DTD            -->
<!--                          Version 0.5                          -->
<!--                        4 November 2000                        -->
<!--                                                               -->
<!-- This DTD is identified by the PUBLIC and SYSTEM identifiers:  -->
<!--                                                               -->
<!-- PUBLIC  "-//FormatData//DTD RecipeML 0.5//EN"                 -->
<!-- SYSTEM  "http://www.formatdata.com/recipeml/recipeml.dtd"     -->
<!--                                                               -->
<!-- Copyright (c) 1999, 2000 James Saiya, FormatData              -->
<!--                                                               -->
<!-- http://www.formatdata.com                                     -->
<!-- ============================================================= -->

<!-- ============================================================= -->
<!--                       attribute entities                      -->
<!-- ============================================================= -->

<!-- attributes common to nearly all elements -->
<!ENTITY % core.att '
  id           ID          #IMPLIED
  class        NMTOKEN     #IMPLIED
  title        CDATA       #IMPLIED'>

<!-- internationalization attributes -->
<!ENTITY % i18n.att '
  xml:lang     NMTOKEN     #IMPLIED'>

<!-- attributes for elements that contain measurements -->
<!ENTITY % measurement.att '
  system       (US | Imperial | metric | SI | other)  #IMPLIED'>

<!-- attributes common to most elements -->
<!ENTITY % common.att '
  %core.att;
  %i18n.att;'>

<!-- attributes for elements that are divisions of the ingredients,
  directions, or tools sections-->
<!ENTITY % div.att '
  %core.att;
  %i18n.att;
  %measurement.att;
  type         (main | variation | titled)  "titled"'>

<!-- ============================================================= -->
<!--                         class entities                        -->
<!-- ============================================================= -->

<!ENTITY % inline.class 'span | frac | sep'>
<!ENTITY % measure.class 'amt | time | temp'>
<!ENTITY % step.class 'action | condition | setting | brandname | tool 
  | toolref | ingref | steptime | %inline.class; | %measure.class;'>
<!-- <!ENTITY % misc.class 'extension | syntax-error'> -->

<!-- ============================================================= -->
<!--                     content model entities                    -->
<!-- ============================================================= -->

<!ENTITY % amt.cont '(amt, (sep?, amt)*)'>
<!ENTITY % time.cont '(time, (sep?, time)*)'>
<!ENTITY % temp.cont '(temp, (sep?, temp)*)'>
<!ENTITY % ing.cont '((%amt.cont;)?, modifier?, item, prep?, ing-note*, 
  prodcode*)'>

<!-- ============================================================= -->
<!--                       document element                        -->
<!-- ============================================================= -->

<!ELEMENT recipeml (meta*, (menu | recipe))>
<!ATTLIST recipeml
  version NMTOKEN #FIXED "0.5"
  generator CDATA #IMPLIED
  %common.att; >

<!-- data which describes the whole document -->
<!-- the meta attributes match those of the HTML 4.0 meta element -->
<!ELEMENT meta EMPTY>
<!ATTLIST meta
  name (DC.Title | DC.Subject | DC.Description | DC.Type | 
        DC.Source | DC.Relation | DC.Coverage | 
        DC.Creator | DC.Publisher | DC.Contributor | DC.Rights | 
        DC.Date | DC.Format | DC.Identifier | DC.Language) 
  #REQUIRED
  content CDATA #REQUIRED
  scheme CDATA #IMPLIED
  lang CDATA #IMPLIED >
  <!-- name: values are from the set of Dublin Core (DC) tokens -->
  <!-- (see http://purl.org/dc) -->
  <!-- scheme: format of the data in the 'content' attribute -->
  <!-- (see http://purl.org/dc) -->
  <!-- lang: language of the data in the 'content' attribute -->

<!ELEMENT menu (head, description*, recipe*)>
<!ATTLIST menu
  %common.att; 
  %measurement.att; >

<!ELEMENT recipe (head, description*, equipment?, ingredients, directions, 
  nutrition?, diet-exchanges?)>
<!ATTLIST recipe
  %common.att; 
  %measurement.att; >

<!-- ============================================================= -->
<!--                     head and its children                     -->
<!-- ============================================================= -->

<!ELEMENT head (title, subtitle?, version?, source?, categories?, 
  preptime*, yield?)>

<!ELEMENT title (#PCDATA | brandname | %inline.class;)*>
<!ATTLIST title
  %common.att; >

<!ELEMENT subtitle (#PCDATA | brandname | %inline.class;)*>
<!ATTLIST subtitle
  %common.att; >

<!-- which refinement of the recipe is this? -->
<!ELEMENT version (#PCDATA)>
<!ATTLIST version
  %common.att; >

<!-- credit or source information displayed as a footnote -->
<!ELEMENT source (#PCDATA | srcitem)*>
<!ATTLIST source
  %common.att; >

<!ELEMENT srcitem (#PCDATA | %inline.class;)*>
<!ATTLIST srcitem
  %common.att; 
  type CDATA #IMPLIED >
  <!-- type: values could be Dublin Core element names, i.e., DC.Title, 
       DC.Creator, DC.Publisher, DC.Contributor, DC.Rights, 
       DC.Date, DC.Identifier) -->

<!-- list of categories -->
<!-- (e.g. dinner (meal), entree (course), pasta (ingredient),
     Chinese (cuisine), etc.) -->
<!ELEMENT categories (#PCDATA | cat)*>
<!ATTLIST categories
  %common.att; 
  content NMTOKENS #IMPLIED >
  <!-- content: (optional) a list of the categories in an alternate
       representation -->

<!-- (optional) way to mark individual categories in the content
     of <categories> element -->
<!ELEMENT cat (#PCDATA)>
<!ATTLIST cat
  %common.att; 
  type CDATA #IMPLIED >
  <!-- type: example values - meal, course, ingredient, cuisine,
       etc. -->

<!-- can be one of many time periods involved in the
     preparation process -->
<!ELEMENT preptime (%time.cont;)>
<!ATTLIST preptime
  %common.att; 
  type CDATA #REQUIRED >
  <!-- type: example values - preparation, rising, marinating, cooking,
       cooling, standing, etc. -->

<!ELEMENT yield (#PCDATA | qty | range | unit)*>
<!ATTLIST yield
  %common.att; >

<!-- ============================================================= -->
<!--                   equipment and sub-elements                  -->
<!-- ============================================================= -->

<!ELEMENT equipment (equip-div+ | (note*, tool, (note | tool)*))>
<!ATTLIST equipment
  %common.att; 
  %measurement.att; >

<!ELEMENT equip-div (title?, description?, note*, tool, 
  (note | tool)*)>
<!ATTLIST equip-div
  %div.att; >

<!ELEMENT tool (#PCDATA | brandname | qty | range | size | unit | 
  %inline.class;)*>
<!ATTLIST tool
  %common.att; 
  optional (yes | no) "no" >

<!-- ============================================================= -->
<!--                  ingredients and sub-elements                 -->
<!-- ============================================================= -->

<!ELEMENT ingredients (ing-div+ | (note*, ing, (note | ing)*))>
<!ATTLIST ingredients
  %common.att; 
  %measurement.att; >

<!ELEMENT ing-div (title?, description?, note*, ing, (note | ing)*)>
<!ATTLIST ing-div
  %div.att; >

<!ELEMENT ing (%ing.cont;, alt-ing*)>
<!ATTLIST ing
  %common.att; 
  optional (yes | no) "no" >

<!-- alternate or substitute ingredient -->
<!ELEMENT alt-ing (%ing.cont;)>
<!ATTLIST alt-ing
  %common.att; >

<!ELEMENT modifier (#PCDATA | size | %measure.class; | %inline.class;)*>
<!ATTLIST modifier
  %common.att; >

<!ELEMENT item (#PCDATA | brandname | %inline.class;)*>
<!ATTLIST item
  %common.att; >

<!ELEMENT prep (#PCDATA | size | %measure.class; | %inline.class;)*>
<!ATTLIST prep
  %common.att; >

<!ELEMENT ing-note (#PCDATA | %measure.class; | %inline.class;)*>
<!ATTLIST ing-note
  %common.att; >

<!-- product code for inventory control systems, automated shopping,
     etc. -->
<!ELEMENT prodcode EMPTY>
<!ATTLIST prodcode
  id ID #IMPLIED
  type CDATA #REQUIRED
  content CDATA #REQUIRED
  domain CDATA #IMPLIED >
  <!-- type: typical values would be: "UPC", "PLU", "SKU" -->
  <!--   (see http://www.uc-council.org) -->
  <!-- domain: realm in which the code applies - "Sav-Mart", etc. -->

<!-- ============================================================= -->
<!--                  directions and sub-elements                  -->
<!-- ============================================================= -->

<!--
<!ELEMENT directions (dir-div+ | (note*, step, (note | step)*))> 
-->
<!ELEMENT directions (dir-div+ | ((note | ing)*, step, 
  (note | ing | step)*))>
<!ATTLIST directions
  %common.att; 
  %measurement.att; >

<!--
<!ELEMENT dir-div (title?, description?, note*, step, (note | step)*)> 
-->
<!ELEMENT dir-div (title?, description?, (note | ing)*, step, 
  (note | ing | step)*)>
<!ATTLIST dir-div
  %div.att; 
  duration CDATA #IMPLIED >

<!ELEMENT step (#PCDATA | %step.class; | substep)*>
<!ATTLIST step
  %common.att; 
  duration CDATA #IMPLIED
  type CDATA "cooking"
  optional (yes | no) "no" >

<!ELEMENT substep (#PCDATA | %step.class;)*>
<!ATTLIST substep
  %common.att; 
  duration CDATA #IMPLIED
  type CDATA "cooking"
  optional (yes | no) "no" >

<!ELEMENT action (#PCDATA | %measure.class; | %inline.class;)*>
<!ATTLIST action
  %common.att; 
  code CDATA #IMPLIED >
  <!-- code: machine-processable instruction for cooking automation -->

<!ELEMENT condition (#PCDATA | %measure.class; | %inline.class;)*>
<!ATTLIST condition
  %common.att; 
  code CDATA #IMPLIED >
  <!-- code: machine-processable instruction for cooking automation -->

<!-- setting for heat or speed, etc. -->
<!ELEMENT setting (#PCDATA | %measure.class; | %inline.class;)*>
<!ATTLIST setting
  %common.att; 
  value CDATA #IMPLIED >
  <!-- value: machine-processable representation of setting -->

<!ELEMENT toolref (#PCDATA | brandname | qty | range | size | unit | 
  %inline.class;)*>
<!ATTLIST toolref
  %common.att; 
  toolid IDREF #REQUIRED >

<!ELEMENT ingref (#PCDATA | brandname | qty | range | size | unit | 
  %inline.class;)*>
<!ATTLIST ingref
  %common.att; 
  ingid IDREF #REQUIRED >

<!ELEMENT steptime (%time.cont;)>

<!-- ============================================================= -->
<!--             nutrition and diet-exchanges elements             -->
<!-- ============================================================= -->

<!-- nutrition information -->
<!ELEMENT nutrition (#PCDATA | nutrient-group | nutrient)*>
<!ATTLIST nutrition
  %common.att; 
  standard CDATA "USDV" >
  <!-- USDV = U.S. Daily Value -->

<!ELEMENT nutrient-group (title?, nutrient+)>
<!ATTLIST nutrient-group
  %common.att; 
  standard CDATA "USDV" >
  <!-- USDV = U.S. Daily Value -->

<!ELEMENT nutrient (n-name+, ((qty, unit?) | percent)+)>
<!ATTLIST nutrient
  %common.att; >

<!ELEMENT n-name (#PCDATA)>
<!ATTLIST n-name
  %common.att; 
  alternate (yes | no) "no" >

<!ELEMENT percent (#PCDATA | frac)*>
<!-- CONSTRAINT: content should be restricted to decimal digits; 
     to be further defined in XML Schema version 
-->
<!ATTLIST percent
  standard CDATA "USDV" >
  <!-- USDV = U.S. Daily Value -->

<!-- diet exchange data -->
<!ELEMENT diet-exchanges (#PCDATA | exchange)*>
<!ATTLIST diet-exchanges
  %common.att; 
  authority CDATA #IMPLIED>
  <!-- authority: the organization which created the guidelines -->

<!ELEMENT exchange (#PCDATA | qty | range)*>
<!ATTLIST exchange
  %common.att; >

<!-- ============================================================= -->
<!--               measurments and utility elements                -->
<!-- ============================================================= -->

<!-- explanatory block of text that may precede a recipe or section -->
<!ELEMENT description (#PCDATA | %measure.class; | %inline.class;)*>
<!ATTLIST description
  %common.att; >

<!-- informative block of text that may be within a section -->
<!ELEMENT note (#PCDATA | %measure.class; | %inline.class;)*>
<!ATTLIST note
  %common.att; 
  type CDATA #IMPLIED >
  <!-- type: typical values would be - Note, Tip, Hint, Suggestion, 
       Variation, Technique, Warning -->

<!ELEMENT amt ((qty | range)?, size?, unit?, size?)>
<!ATTLIST amt
  %common.att; 
  %measurement.att; 
  variation CDATA #IMPLIED >

<!ELEMENT qty (#PCDATA | frac)*>
<!ATTLIST qty
  %core.att; >

<!ELEMENT range (q1, sep?, q2)>
<!ATTLIST range
  %core.att; >
<!ELEMENT q1 (#PCDATA | frac)*>
<!ATTLIST q1
  %core.att; >
<!ELEMENT q2 (#PCDATA | frac)*>
<!ATTLIST q2
  %core.att; >

<!ELEMENT size (#PCDATA | qty | range | unit)*>
<!ATTLIST size
  %common.att; 
  code NMTOKEN #IMPLIED >
  <!-- code: machine-processable representation of size -->

<!ELEMENT unit (#PCDATA)>
<!ATTLIST unit
  %common.att; 
  %measurement.att; 
  unit NMTOKEN #IMPLIED
  type (mass | weight | volume | area | length | other) #IMPLIED >
  <!-- unit: machine-processable representation of unit -->

<!ELEMENT time ((qty | range), timeunit)>
<!ATTLIST time
  %core.att; >

<!ELEMENT timeunit (#PCDATA)>
<!ATTLIST timeunit
  %common.att; 
  %measurement.att; 
  unit NMTOKEN #IMPLIED >
  <!-- unit: machine-processable representation of unit -->

<!ELEMENT temp ((qty | range), tempunit)>
<!ATTLIST temp
  %core.att; >

<!ELEMENT tempunit (#PCDATA)>
<!ATTLIST tempunit
  %common.att; 
  %measurement.att; 
  unit (C | F | K) #IMPLIED >
  <!-- unit: coded representation of unit -->

<!-- fraction -->
<!ELEMENT frac (n, sep?, d)>
<!ATTLIST frac
  %common.att; >
<!ELEMENT n (#PCDATA)>
<!ELEMENT d (#PCDATA)>
<!-- n, d CONSTRAINT: content must be restricted to decimal digits -->
<!-- separator - punctuation or word(s) appearing between elements -->
<!-- e.g.: 2 <sep>to</sep> 3 pounds -->
<!-- content is optionaly displayed depending on style sheet -->

<!ELEMENT sep (#PCDATA)>
<!ATTLIST sep
  %common.att; >

<!ELEMENT brandname (#PCDATA | mfr | product)*>
<!ATTLIST brandname
  %common.att; >

<!-- the part of <brandname> that is the name of the manufacturer -->
<!ELEMENT mfr (#PCDATA | %inline.class;)*>
<!ATTLIST mfr
  %common.att; 
  uccMin NMTOKEN #IMPLIED >
  <!-- uccMin: Uniform Code Council Manufacturer Identification 
       Number -->
  <!-- (see http://www.uc-council.org) -->

<!-- the part of <brandname> that is the name of the product itself -->
<!ELEMENT product (#PCDATA | %inline.class;)*>
<!ATTLIST product
  %common.att; 
  uccIcn NMTOKEN #IMPLIED >
  <!-- uccIcn: Uniform Code Council Item Code Number -->
  <!-- (see http://www.uc-council.org) -->

<!-- useful for associating style information with content otherwise
     not marked up -->
<!ELEMENT span (#PCDATA | %inline.class;)*>
<!ATTLIST span
  %common.att; >

<!-- extensibility mechanism -->
<!-- ** possible future enhancement **
<!ELEMENT extension ANY>
<!ATTLIST extension 
  %common.att; >
-->

<!-- mark an error in conversion from a legacy format -->
<!-- ** possible future enhancement **
<!ELEMENT syntax-error ANY>
<!ATTLIST syntax-error 
  %common.att; 
  translator  CDATA    #IMPLIED >
-->
<!-- translator: name (and version) of tool used to 
     perform conversion -->

<!-- ============================================================= -->
<!--                       END RECIPEML DTD                        -->
<!-- ============================================================= -->