[CSS2] Scripts accept both name= and id= on input, only generate id=

on output. Replaced the definition of the color property by a
reference to css3-color. Replaced some name= by id=. Updated links to
editors' draft and to ERCIM. Refer to css-syntax-3 for white space,
because there is no text in the syntax chapter anymore. Removed
redundant class=example. Regenerated HTML files. Trying a different
link checker. Add support for links to properties defined in CSS
modules and no longer in CSS2 itself.

Author: bert-github

css2/Makefile

@@ -167,7 +167,9 @@ SED = sed
 PERL= perl
 NSGMLS=onsgmls
 HTMLDECL = sgml/HTML4.decl
-LINKLINT=$(PERL) bin/linklint
+# LINKLINT=$(PERL) bin/linklint -doc linklint
+# LINKLINT=linklint -doc linklint
+LINKLINT = bin/checklink --suppress-temp-redirects -q -D 2
 # SPELL = ispell -l -p css.dico
 SPELL = aspell -H -p css.dico list
 DIFF = diff
@@ -241,6 +243,8 @@ RMIMGEXT = $(PERL) ./bin/rmimgext
 ADDMARKUP = $(PERL) ./bin/addmarkup
 # Add longdesc descriptions to images
 ADDLONGDESC = $(PERL) ./bin/addlongdesc
+# Add external links to anchor database
+MKEXTDB = $(PERL) ./bin/mkextdb
 
 # utility to generate the PostScript version
 #
@@ -282,7 +286,7 @@ LN= ln
 # at the cost of possibly incorrect xrefs in the other .html files
 #
 #%.html: %.subtoc Project.cfg
-%.html: %.subtoc $(MAINSRCS:.src=.srd) $(APPSRCS:.src=.srd) Project.cfg build/warning build/meta-viewport build/fixup-js #$(SPECSRCS:.src=.srd)
+%.html: %.subtoc $(MAINSRCS:.src=.srd) $(APPSRCS:.src=.srd) Project.cfg build/warning build/meta-viewport build/fixup-js #$(SPECSRCS:.src=.srd) $(VALUEDB)
 	@echo "=========== making" $@
 	$(ADDLINKS) $(VALUEDB) $*.srd propinst-/propdef- value-inst-/value-def- |\
 	$(ADDIDXANCH) -r $@ $(INDEXDB) - |\
@@ -451,6 +455,10 @@ css2.zip: $(ALLOBJS)
 
 #### Section generate property tables from property database.
 
+$(VALUEDB): Project.cfg
+	@echo "Initializing external definition links using" $<
+	$(MKEXTDB) $@ $<
+
 build/blocks.ok: $(PROPBLKSDIR)/blocks.ok
 	touch $@
 
@@ -604,7 +612,7 @@ checksample: sample.src $(PROPSRC)
 checklnx: all
 	-@echo "# Begin checking links."
 	-@$(RM) linklint
-	$(LINKLINT) -doc linklint $(SPECOBJS)
+	$(LINKLINT) $(SPECOBJS)
 	-@echo "# End checking links."
 
 ### check property instances

css2/Overview.html

@@ -49,8 +49,8 @@ <h2 id="W3C-doctype">W3C Editors' Draft DD MMMMM YYYY</h2>
   <dd><a href="http://www.w3.org/TR/2011/REC-CSS2-20110607/">
                http://www.w3.org/TR/2011/REC-CSS2-20110607/</a>
   <dt>Editors' draft:
-  <dd><a href="http://dev.w3.org/csswg/css2/">
-               http://dev.w3.org/csswg/css2/</a>
+  <dd><a href="https://drafts.csswg.org/css2/">
+               https://drafts.csswg.org/css2/</a>
   <dt>Editors:
   <dd class="vcard"><a class="url fn" lang=nl href="http://www.w3.org/People/Bos/">
                Bert Bos</a>
@@ -95,7 +95,7 @@ <h2 id="W3C-doctype">W3C Editors' Draft DD MMMMM YYYY</h2>
   title="World Wide Web Consortium">W3C</abbr></a><sup>&reg;</sup> (<a
   href="http://www.csail.mit.edu/" ><abbr title="Massachusetts
   Institute of Technology" >MIT</abbr></a>, <a
-  href="http://www.ercim.eu/" ><abbr title="European Research
+  href="https://www.ercim.eu/" ><abbr title="European Research
   Consortium for Informatics and Mathematics" >ERCIM</abbr></a>, <a
   href="http://www.keio.ac.jp/" >Keio</a>, <a
   href="http://ev.buaa.edu.cn/" >Beihang</a>). W3C <a
@@ -540,7 +540,7 @@ <h2 id="fulltoc">Full Table of Contents</h2>
   </ul>
   <li><a href="colors.html" class="tocxref">14 Colors and Backgrounds</a>
   <ul class="toc">
-    <li><a href="colors.html#colors" class="tocxref">14.1 Foreground color: the <span class="propinst-color">'color'</span> property</a>
+    <li><a href="colors.html#colors" class="tocxref">14.1 Foreground color: the 'color' property</a>
     <li><a href="colors.html#background" class="tocxref">14.2 The background</a>
     <ul class="toc">
       <li><a href="colors.html#background-properties" class="tocxref">14.2.1 Background properties: <span class="propinst-background-color">'background-color'</span>, <span class="propinst-background-image">'background-image'</span>, <span class="propinst-background-repeat">'background-repeat'</span>, <span class="propinst-background-attachment">'background-attachment'</span>, <span class="propinst-background-position">'background-position'</span>, and <span class="propinst-background">'background'</span></a>

css2/Overview.src

@@ -32,8 +32,8 @@
   <dd><a href="http://www.w3.org/TR/2011/REC-CSS2-20110607/">
                http://www.w3.org/TR/2011/REC-CSS2-20110607/</a>
   <dt>Editors' draft:
-  <dd><a href="http://dev.w3.org/csswg/css2/">
-               http://dev.w3.org/csswg/css2/</a>
+  <dd><a href="https://drafts.csswg.org/css2/">
+               https://drafts.csswg.org/css2/</a>
   <dt>Editors:
   <dd class="vcard"><a class="url fn" lang=nl href="http://www.w3.org/People/Bos/">
                Bert Bos</a>
@@ -78,7 +78,7 @@
   title="World Wide Web Consortium">W3C</abbr></a><sup>&reg;</sup> (<a
   href="http://www.csail.mit.edu/" ><abbr title="Massachusetts
   Institute of Technology" >MIT</abbr></a>, <a
-  href="http://www.ercim.eu/" ><abbr title="European Research
+  href="https://www.ercim.eu/" ><abbr title="European Research
   Consortium for Informatics and Mathematics" >ERCIM</abbr></a>, <a
   href="http://www.keio.ac.jp/" >Keio</a>, <a
   href="http://ev.buaa.edu.cn/" >Beihang</a>). W3C <a

css2/Project.cfg

@@ -64,3 +64,19 @@
 @chapter grammar.html
 @chapter leftblank.html
 @chapter indexlist.html
+
+# External links for definitions. E.g.,
+# @def value-def-length https://www.w3.org/TR/css3-values/#length-value
+# means the definition "value-def-length" can be found at the given URL
+
+@def value-def-length https://www.w3.org/TR/css3-values/#length-value
+@def value-def-color https://www.w3.org/TR/css3-color/#valuea-def-color
+@def value-def-uri https://www.w3.org/TR/css3-values/#url-value
+@def value-def-percentage https://www.w3.org/TR/css3-values/#percentage-value
+@def value-def-string https://www.w3.org/TR/css3-values/#string-value
+@def value-def-identifier https://www.w3.org/TR/css3-values/#typedef-ident
+@def value-def-integer https://www.w3.org/TR/css3-values/#integer-value
+@def value-def-number https://www.w3.org/TR/css3-values/#number-value
+
+@def propdef-color https://www.w3.org/TR/css3-color/#color0
+

css2/about.html

@@ -26,7 +26,7 @@
 </div>
 <hr class="navbar">
 
-<H1><a name="q0">1 About the CSS&nbsp;2 Specification</a></H1>
+<H1 id="q0">1 About the CSS&nbsp;2 Specification</H1>
 <div id="toc" class="subtoc">
 <p><strong>Contents</strong>
   <ul class="toc">
@@ -191,7 +191,7 @@ <H3>1.4.2 <a name="property-defs">CSS property definitions</a></H3>
  <tbody>
   <tr>
    <th>Name:
-   <td><a name="x0"><span class="index-def" title="'property-name'"><dfn id="propdef-property-name">property-name</dfn></span></a><tr><th>Value:<td>legal values &amp; syntax
+   <td><span class="index-def" title="'property-name'"><dfn id="propdef-property-name">property-name</dfn></span><tr><th>Value:<td>legal values &amp; syntax
 <tr><th>Initial:<td>initial value
 <tr><th>Applies to:<td>elements this property applies to
 <tr><th>Inherited:<td>whether the property is inherited
@@ -355,8 +355,8 @@ <h4>1.4.2.7 <a name="computed-defs">Computed value</a></h4>
 
 <H3>1.4.3 <a name="shorthand">Shorthand properties</a></H3>
 
-<p>Some properties are <a name="x1"><span class="index-def" title="shorthand
-property"><dfn>shorthand properties</dfn></span></a>, meaning that they allow
+<p>Some properties are <span class="index-def" title="shorthand
+property" id="x1"><dfn>shorthand properties</dfn></span>, meaning that they allow
 authors to specify the values of several properties with a single
 property.