diff mbox series

contrib: add cxx-dr-table.sh

Message ID 20240412012524.61221-1-polacek@redhat.com
State New
Headers show
Series contrib: add cxx-dr-table.sh | expand

Commit Message

Marek Polacek April 12, 2024, 1:25 a.m. UTC 
Ok for trunk?

-- >8 --
I use this script to keep <https://gcc.gnu.org/projects/cxx-dr-status.html>
up-to-date.  I thought it might be good to have it in contrib/, so I've
polished it a little bit.

contrib/ChangeLog:

	* cxx-dr-table.sh: New file.
---
 contrib/cxx-dr-table.sh | 108 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100755 contrib/cxx-dr-table.sh


base-commit: d1a21a6f9474e519926d20a7c6d664be03aff3ee
diff mbox series

Patch

diff --git a/contrib/cxx-dr-table.sh b/contrib/cxx-dr-table.sh
new file mode 100755
index 00000000000..9d67d176cad
--- /dev/null
+++ b/contrib/cxx-dr-table.sh
@@ -0,0 +1,108 @@ 
+#!/bin/bash
+# Script to check/update <https://gcc.gnu.org/projects/cxx-dr-status.html>
+# from <https://www.open-std.org/jtc1/sc22/wg21/docs/cwg_toc.html>.
+# Use --generate only to add new DRs; don't use it to update the existing
+# ones because it would rewrite the Notes column.
+# Use --check to check if the existing entries need to be updated.
+# May need $ iconv -f iso-8859-1 -t utf-8 cwg_toc.html > cwg_toc2.html
+
+# Written by Marek Polacek <polacek@redhat.com>
+
+AWK=/usr/bin/awk
+DIFF=/usr/bin/vimdiff
+SED=/usr/bin/sed
+
+usage()
+{
+  echo "Usage: $0 --check cwg_toc.html ~/src/gcc-wwwdocs/htdocs/projects/cxx-dr-status.html"
+  echo "   or: $0 --generate cwg_toc.html"
+}
+
+fatal_usage()
+{
+  usage >&2
+  exit 1
+}
+
+# Generate new DR entries.
+do_generate() {
+  $AWK '/A NAME=/{
+    # <A NAME="2838"></A><A HREF="cwg_active.html#2838">2838</A>
+    num = gensub(/(<.+>)(<.+>)(<.+>)(.+)(<.+>)/, "\\4", "g", $0)
+    getline
+    # Eat </TD>
+    getline
+    # Eat <TD ALIGN="LEFT">6.7.6</TD>
+    getline
+    # <TD ALIGN="CENTER">open</TD>
+    status = gensub(/(<.+>)(.+)(<.+>)/, "\\2", "g", $0)
+    getline
+    # Eat <TD ALIGN="LEFT"><issue_title>
+    getline
+    title = $0
+
+    # Generate the HTML fragment.
+    if (status == "open" || status == "drafting") {
+      print "    <tr class=\"open\">"
+    } else {
+      print "    <tr>"
+    }
+    print "      <td><a href=\"https://wg21.link/cwg" num "\">" num "</a></td>"
+    print "      <td>" status "</td>"
+    print "      <td>" title "</td>"
+    if (status == "open" || status == "drafting") {
+      print "      <td>-</td>"
+    } else {
+      print "      <td class=\"unsupported\">?</td>"
+    }
+    print "      <td></td>"
+    print "    </tr>"
+  }' $1
+}
+
+# Check existing DR entries against the ISO version.
+do_check() {
+  # Generate a table from the upstream table: DR# + status + summary
+  # First, fix the quotes.
+  $SED -i $1 -e 's/\(&#8220;\|&#8221;\)/"/g'
+  $AWK '/A NAME=/{ print; getline; getline; getline; print; getline; getline; print }' $1 | \
+  $AWK -v RS='<[^>]+>' -v ORS= '1' | iconv -f UTF-8 -t ASCII//TRANSLIT > $tmp1
+
+  # Generate a table from our table: DR# + status + summary
+  $AWK '/wg21.link.cwg/{ print; getline; print; getline; print }' $2 | \
+  $AWK -v RS='<[^>]+>' -v ORS= '1' > $tmp2
+  $SED -i $tmp2 -e 's/^[ \t]*//'
+
+  # Compare the tables.
+  $DIFF $tmp1 $tmp2
+}
+
+if [ $# -lt 2 ]; then
+  fatal_usage
+fi
+
+tmp1="$(mktemp)"
+tmp2="$(mktemp)"
+
+cleanup() {
+  rm -f -- "$tmp1" "$tmp2"
+}
+
+trap cleanup 0
+
+case "$1" in
+  -c | --check)
+    if [ $# -lt 3 ]; then
+      fatal_usage
+    fi
+    do_check "$2" "$3"
+    ;;
+  -g | --generate)
+    do_generate "$2"
+    ;;
+  *)
+    fatal_usage
+    ;;
+esac
+
+exit