X-Git-Url: http://git.plutz.net/?a=blobdiff_plain;f=markdown.awk;h=71c91fd47a825a984d6bad0026abe01962bb5a5c;hb=516bc32df2437bc45005b1ea1a5d452503bd1669;hp=af3d7224657418caa809b5fa6223ce3cc1411224;hpb=628929d8cbd7e2d59dd324f083fddd520c1c6c4d;p=cgilite

diff --git a/markdown.awk b/markdown.awk
index af3d722..71c91fd 100755
--- a/markdown.awk
+++ b/markdown.awk
@@ -38,6 +38,7 @@
 #
 # Extensions - Block elements:
 # ----------------------------
+# - [x] Automatic <section>-wrapping (custom)
 # -  ?  Heading identifiers (php md, pandoc)
 # - [x] Automatic heading identifiers (custom)
 # - [x] Fenced code blocks (php md, pandoc)
@@ -89,12 +90,13 @@ function HTML ( text ) {
   return text;
 }
 
-function URL ( text ) {
+function URL ( text, sharp ) {
   gsub( /&/,  "%26",  text );
   gsub( /"/,  "%22", text );
   gsub( /'/,  "%27", text );
+  gsub( /`/,  "%60", text );
   gsub( /\?/,  "%3F", text );
-  gsub( /#/,  "%23", text );
+  if (sharp) gsub( /#/,  "%23", text );
   gsub( /\[/,  "%5B", text );
   gsub( /\]/,  "%5D", text );
   gsub( / /,  "%20", text );
@@ -130,7 +132,7 @@ function inline( line, LOCAL, len, code, href, guard ) {
       code = substr( line, len + 1, match( substr(line, len + 1), guard ) - 1)
       len = 2 * length(guard) + length(code)
       #  strip single surrounding white spaces
-      code = gensub( / (.*) /, "\\1", "1" , code)
+      code = gensub( /^ | $/, "", "g" , code)
       #  escape HTML within code span
       gsub( /&/, "\\&amp;", code ); gsub( /</, "\\&lt;", code ); gsub( />/, "\\&gt;", code );
       return "<code>" code "</code>" inline( substr( line, len + 1 ) )
@@ -194,16 +196,16 @@ function inline( line, LOCAL, len, code, href, guard ) {
     title  = gensub(/^!\[([^]]*)\]\(([^"\)]+)([ \t]+"([^"]+)")?\)(\{([a-zA-Z \t-]*)\})?/, "\\4", "g", substr(line, 1, len) );
     attrib = gensub(/^!\[([^]]*)\]\(([^"\)]+)([ \t]+"([^"]+)")?\)(\{([a-zA-Z \t-]*)\})?/, "\\6", "g", substr(line, 1, len) );
     if ( title && attrib ) {
-      return "<img src=\"" URL(href) "\" alt=\"" HTML(text) "\" title=\"" HTML(title) "\" class=\"" HTML(attrib) "\">" \
+      return "<img src=\"" URL(href, 1) "\" alt=\"" HTML(text) "\" title=\"" HTML(title) "\" class=\"" HTML(attrib) "\">" \
              inline( substr( line, len + 1) );
     } else if ( title ) {
-      return "<img src=\"" URL(href) "\" alt=\"" HTML(text) "\" title=\"" HTML(title) "\">" \
+      return "<img src=\"" URL(href, 1) "\" alt=\"" HTML(text) "\" title=\"" HTML(title) "\">" \
              inline( substr( line, len + 1) );
     } else if ( attrib ) {
-      return "<img src=\"" URL(href) "\" alt=\"" HTML(text) "\" class=\"" HTML(attrib) "\">" \
+      return "<img src=\"" URL(href, 1) "\" alt=\"" HTML(text) "\" class=\"" HTML(attrib) "\">" \
              inline( substr( line, len + 1) );
     } else {
-      return "<img src=\"" URL(href) "\" alt=\"" HTML(text) "\">" \
+      return "<img src=\"" URL(href, 1) "\" alt=\"" HTML(text) "\">" \
              inline( substr( line, len + 1) );
     }
 
@@ -214,10 +216,10 @@ function inline( line, LOCAL, len, code, href, guard ) {
       id = gensub(/^!\[([^\n]*)\] ?\[([^\n]*)\].*/, "\\2", 1, substr(line, 1, len) );
     if ( ! id ) id = text;
     if ( rl_href[id] && rl_title[id] ) {
-      return "<img src=\"" URL(rl_href[id]) "\" alt=\"" HTML(text) "\" title=\"" HTML(rl_title[id]) "\">" \
+      return "<img src=\"" URL(rl_href[id], 1) "\" alt=\"" HTML(text) "\" title=\"" HTML(rl_title[id]) "\">" \
              inline( substr( line, len + 1) );
     } else if ( rl_href[id] ) {
-      return "<img src=\"" URL(rl_href[id]) "\" alt=\"" HTML(text) "\">" \
+      return "<img src=\"" URL(rl_href[id], 1) "\" alt=\"" HTML(text) "\">" \
              inline( substr( line, len + 1) );
     } else {
       return "" HTML(substr(line, 1, len)) inline( substr(line, len + 1) );
@@ -305,7 +307,39 @@ function inline( line, LOCAL, len, code, href, guard ) {
   }
 }
 
-function _block( block, LOCAL, st, len, hlvl, htxt, guard, code, indent, attrib ) {
+function headline( hlvl, htxt, LOCAL, sec, n, HL) {
+  split( gensub( /^(.* )?([0-9]+( [0-9]+){5})$/, "\\2" ,"1", hstack),  HL);
+
+  for ( n = hlvl; n <= 6; n++ ) { sec = sec (HL[n]?"</section>":""); }
+  HL[hlvl]++; for ( n = hlvl + 1; n <= 6; n++) { HL[n] = 0;}
+  hid = HL[1]; for ( n = 2; n <= hlvl; n++) { hid = hid "." HL[n] ; }
+  # hid = hid ":" URL(htxt, 1);
+
+  hstack = gensub( /^(.* )?([0-9]+( [0-9]+){5})$/, "\\1" ,"1", hstack) \
+           HL[1] " " HL[2] " " HL[3] " " HL[4] " " HL[5] " " HL[6];
+
+  return sec "<section class=\"h" hlvl "\" id=\"" hid "\">" \
+         "<h" hlvl ">" inline( htxt ) \
+         "<a class=\"anchor\" href=\"#" hid "\"></a>" \
+         "</h" hlvl ">\n\n";
+}
+
+# Nested Block, resets heading counters
+function _nblock( block, LOCAL, hlsav, sec ) {
+  hlsav = hstack;
+  hstack = hstack " 0 0 0 0 0 0";
+
+  # Block Level
+  blvl++;
+
+  block = _block( block );
+  split( gensub( /^(.* )?([0-9]+( [0-9]+){5})$/, "\\2" ,"1", hstack),  HL);
+  sec = ""; for ( n = 1; n <= 6; n++ ) { sec = sec (HL[n]?"</section>":""); }
+  hstack = hlsav; blvl--;
+  return block sec;
+}
+
+function _block( block, LOCAL, st, len, hlvl, htxt, sec, guard, code, indent, attrib ) {
   gsub( /^\n+|\n+$/, "", block );
 
   if ( block == "" ) {
@@ -343,7 +377,7 @@ function _block( block, LOCAL, st, len, hlvl, htxt, guard, code, indent, attrib
   } else if ( match( block, /^> /) ) {
     match( block, /(^|\n)[[:space:]]*(\n|$)/ ) || match(block, /$/);
     len = RLENGTH; st = RSTART;
-    return "<blockquote>\n" _block( gensub( /(^|\n)> /, "\n", "g", substr(block, 1, st - 1) ) ) "</blockquote>\n\n" \
+    return "<blockquote>\n" _nblock( gensub( /(^|\n)> /, "\n", "g", substr(block, 1, st - 1) ) ) "</blockquote>\n\n" \
            _block( substr(block, st + len) );
 
   # Pipe Tables (pandoc / php md / gfm )
@@ -446,7 +480,7 @@ function _block( block, LOCAL, st, len, hlvl, htxt, guard, code, indent, attrib
 
       ttext = "<thead>\n<tr>"
       for (cnt = 1; cnt <= cols; cnt++)
-        ttext = ttext "<th align=\"" talign[cnt] "\">" _block(tarray[cnt]) "</th>"
+        ttext = ttext "<th align=\"" talign[cnt] "\">" _nblock(tarray[cnt]) "</th>"
       ttext = ttext "</tr>\n</thead>"
     }
 
@@ -469,10 +503,10 @@ function _block( block, LOCAL, st, len, hlvl, htxt, guard, code, indent, attrib
 
       ttext = ttext "<tr>"
       for (cnt = 1; cnt <= cols; cnt++)
-        ttext = ttext "<td align=\"" talign[cnt] "\">" _block(tarray[cnt]) "</td>"
+        ttext = ttext "<td align=\"" talign[cnt] "\">" _nblock(tarray[cnt]) "</td>"
       ttext = ttext "</tr>\n"
     }
-    return "<table>" ttext "</tbody></table>\n" _block(block);
+    return "<table>" ttext "</tbody></table>\n" _nblock(block);
 
   # Line Blocks (pandoc)
   } else if ( match(block, /^\| [^\n]*(\n|$)(\| [^\n]*(\n|$)|[ \t]+[^\n[:space:]][^\n]*(\n|$))*/) ) {
@@ -502,7 +536,7 @@ function _block( block, LOCAL, st, len, hlvl, htxt, guard, code, indent, attrib
     gsub(/(^ | $)/, "", attrib);
     if ( match(code, "(^|\n)" guard "+(\n|$)" ) ) {
       len = RLENGTH; st = RSTART;
-      return "<div class=\"" attrib "\">" _block( substr(code, 1, st - 1) ) "</div>\n" \
+      return "<div class=\"" attrib "\">" _nblock( substr(code, 1, st - 1) ) "</div>\n" \
              _block( substr( code, st + len ) );
     } else {
       match( block, /(^|\n)[[:space:]]*(\n|$)/ ) || match( block, /$/ );
@@ -553,35 +587,28 @@ function _block( block, LOCAL, st, len, hlvl, htxt, guard, code, indent, attrib
   gsub("(^|\n) {0," indent "}", "\n", list);
   return "\n<ol>\n" _list( substr(list, 2) ) "</ol>\n" _block( block );
 
-  # First Order Heading
+  # First Order Heading H1
   } else if ( match( block, /^[^\n]+\n===+(\n|$)/ ) ) {
     len = RLENGTH;
-    HL[1]++; HL[2] = 0; HL[3] = 0; HL[4] = 0; HL[5] = 0; HL[6] = 0;
-    return "<h1 id=\"" HL[1] ":" URL(gensub( /\n.*$/, "", "g", block )) "\">" \
-           inline( gensub( /\n.*$/, "", "g", block ) ) \
-           "<a class=\"anchor\" href=\"#" HL[1] ":" \
-           URL(gensub( /\n.*$/, "", "g", block )) "\"></a></h1>\n\n" \
+
+    return headline(1, gensub( /\n.*$/, "", "g", block )) \
            _block( substr( block, len + 1 ) );
 
-  # Second Order Heading
+  # Second Order Heading H2
   } else if ( match( block, /^[^\n]+\n---+(\n|$)/ ) ) {
     len = RLENGTH;
-    HL[2]++; HL[3] = 0; HL[4] = 0; HL[5] = 0; HL[6] = 0;
-    return "<h2 id=\"" HL[1] "." HL[2] ":" URL(gensub( /\n.*$/, "", "g", block )) "\">" \
-           inline( gensub( /\n.*$/, "", "g", block ) ) \
-           "<a class=\"anchor\" href=\"#" HL[1] "." HL[2] ":" \
-           URL(gensub( /\n.*$/, "", "g", block )) "\"></a></h2>\n\n" \
+
+    return headline(2, gensub( /\n.*$/, "", "g", block )) \
            _block( substr( block, len + 1) );
 
-  # Nth Order Heading
+  # Nth Order Heading H1 H2 H3 H4 H5 H6
   } else if ( match( block, /^#{1,6}[ \t]*[^\n]+([ \t]*#*)(\n|$)/ ) ) {
     len = RLENGTH;
-    hlvl = length( gensub( /^(#{1,6}).*$/, "\\1", "g", block ) );
-    htxt = gensub(/^#{1,6}[ \t]*(([^ \t\n]+|[ \t]+[^ \t\n#]|[ \t]+#+[^\n#])+)([ \t]*#*)(\n.*)?$/, "\\1", 1, block);
-    HL[hlvl]++; for ( n = hlvl + 1; n < 7; n++) { HL[n] = 0;}
-    hid = HL[1]; for ( n = 2; n <= hlvl; n++) { hid = hid "." HL[n] ; }
-    return "<h" hlvl " id=\"" hid ":" URL(htxt) "\">" inline( htxt ) \
-           "<a class=\"anchor\" href=\"#" hid "\"></a></h" hlvl ">\n\n" \
+
+    return headline( \
+             length( gensub( /^(#{1,6}).*$/, "\\1", "g", block ) ), \
+             gensub(/^#{1,6}[ \t]*(([^ \t\n]+|[ \t]+[^ \t\n#]|[ \t]+#+[^\n#])+)([ \t]*#*)(\n.*)?$/, "\\1", 1, block) \
+           ) \
            _block( substr( block, len + 1) );
 
   # block images (wrapped in <figure>)
@@ -592,25 +619,25 @@ function _block( block, LOCAL, st, len, hlvl, htxt, guard, code, indent, attrib
     title  = gensub(/^!\[([^]]*)\]\(([^"\)]+)([ \t]+"([^"]+)")?\)(\{([a-zA-Z \t-]*)\})?(\n.*)?$/, "\\4", "g", block);
     attrib = gensub(/^!\[([^]]*)\]\(([^"\)]+)([ \t]+"([^"]+)")?\)(\{([a-zA-Z \t-]*)\})?(\n.*)?$/, "\\6", "g", block);
     if ( title && attrib ) {
-      return "<figure data-src=\"" URL(href) "\" class=\"" HTML(attrib) "\">" \
-               "<img src=\"" URL(href) "\" alt=\"" HTML(text) "\" class=\"" HTML(attrib) "\">" \
+      return "<figure data-src=\"" URL(href, 1) "\" class=\"" HTML(attrib) "\">" \
+               "<img src=\"" URL(href, 1) "\" alt=\"" HTML(text) "\" class=\"" HTML(attrib) "\">" \
                "<figcaption>" inline(title) "</figcaption>" \
              "</figure>\n\n" \
              _block( substr( block, len + 1) );
     } else if ( title ) {
-      return "<figure data-src=\"" URL(href) "\">" \
-               "<img src=\"" URL(href) "\" alt=\"" HTML(text) "\">" \
+      return "<figure data-src=\"" URL(href, 1) "\">" \
+               "<img src=\"" URL(href, 1) "\" alt=\"" HTML(text) "\">" \
                "<figcaption>" inline(title) "</figcaption>" \
              "</figure>\n\n" \
              _block( substr( block, len + 1) );
     } else if ( attrib ) {
-      return "<figure data-src=\"" URL(href) "\" class=\"" HTML(attrib) "\">" \
-               "<img src=\"" URL(href) "\" alt=\"" HTML(text) "\" class=\"" HTML(attrib) "\">" \
+      return "<figure data-src=\"" URL(href, 1) "\" class=\"" HTML(attrib) "\">" \
+               "<img src=\"" URL(href, 1) "\" alt=\"" HTML(text) "\" class=\"" HTML(attrib) "\">" \
              "</figure>\n\n" \
              _block( substr( block, len + 1) );
     } else {
-      return "<figure data-src=\"" URL(href) "\">" \
-               "<img src=\"" URL(href) "\" alt=\"" HTML(text) "\">" \
+      return "<figure data-src=\"" URL(href, 1) "\">" \
+               "<img src=\"" URL(href, 1) "\" alt=\"" HTML(text) "\">" \
              "</figure>\n\n" \
              _block( substr( block, len + 1) );
     }
@@ -622,14 +649,14 @@ function _block( block, LOCAL, st, len, hlvl, htxt, guard, code, indent, attrib
       id = gensub(/^!\[([^\n]*)\] ?\[([^\n]*)\](\n.*)?$/, "\\2", 1, block);
     if ( ! id ) id = text;
     if ( rl_href[id] && rl_title[id] ) {
-      return "<figure data-src=\"" URL(rl_href[id]) "\">" \
-               "<img src=\"" URL(rl_href[id]) "\" alt=\"" HTML(text) "\">" \
+      return "<figure data-src=\"" URL(rl_href[id], 1) "\">" \
+               "<img src=\"" URL(rl_href[id], 1) "\" alt=\"" HTML(text) "\">" \
                "<figcaption>" inline(rl_title[id]) "</figcaption>" \
              "</figure>\n\n" \
              _block( substr( block, len + 1) );
     } else if ( rl_href[id] ) {
-      return "<figure data-src=\"" URL(rl_href[id]) "\">" \
-               "<img src=\"" URL(rl_href[id]) "\" alt=\"" HTML(text) "\">" \
+      return "<figure data-src=\"" URL(rl_href[id], 1) "\">" \
+               "<img src=\"" URL(rl_href[id], 1) "\" alt=\"" HTML(text) "\">" \
              "</figure>\n\n" \
              _block( substr( block, len + 1) );
     } else {
@@ -640,7 +667,7 @@ function _block( block, LOCAL, st, len, hlvl, htxt, guard, code, indent, attrib
   } else if ( AllowMacros && match( block, /^<<(([^>]|>[^>])+)>>(\n|$)/) ) {
     len = RLENGTH;
     text = gensub(/^<<(([^>]|>[^>])+)>>(\n.*)?$/, "\\1", 1, block);
-    return macro(text) _block(substr(block, len + 1));
+    return macro(text) _block(substr(block, len + 1) );
 
   # Split paragraphs
   } else if ( match( block, /(^|\n)[[:space:]]*(\n|$)/) ) {
@@ -675,9 +702,9 @@ function _list( block, last, LOCAL, p) {
   # if this should be a paragraph item
   # either previous item (last) or current item (p) contains blank lines
   if (match(last, /\n[[:space:]]*\n/) || match(p, /\n[[:space:]]*\n/) ) {
-    last = p; p = _block(p);
+    last = p; p = _nblock(p);
   } else {
-    last = p; p = _block(p);
+    last = p; p = _nblock(p);
     sub( /^<p>/, "", p );
     sub( /<\/p>\n/, "", p );
   }
@@ -712,6 +739,7 @@ BEGIN {
   file = ""; rl_href[""] = ""; rl_title[""] = "";
   if (ENVIRON["MD_HTML"] == "true") { AllowHTML = "true"; }
   HL[1] = 0; HL[2] = 0; HL[3] = 0; HL[4] = 0; HL[5] = 0; HL[6] = 0;
+  # hls = "0 0 0 0 0 0";
 
   # Buffering of full file ist necessary, e.g. to find reference links
   while (getline) { file = file $0 "\n"; }
@@ -735,5 +763,5 @@ BEGIN {
   # for (n in rl_href) { debug(n " | " rl_href[n] " | " rl_title[n] ); }
 
   # Run Block Processing -> The Actual Markdown!
-  printf "%s", _block( file );
+  printf "%s", _nblock( file );
 }