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webrev.ksh
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webrev.ksh
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#!/bin/ksh -p
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
# Copyright (c) 2008, 2018, Oracle and/or its affiliates. All rights reserved.
# Use is subject to license terms.
#
# This script takes a file list and a workspace and builds a set of html files
# suitable for doing a code review of source changes via a web page.
# Documentation is available via 'webrev -h'.
#
WEBREV_UPDATED=25.18-hg+openjdk.java.net
HTML='<?xml version="1.0"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">\n'
FRAMEHTML='<?xml version="1.0"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">\n'
STDHEAD='<meta charset="utf-8">
<meta http-equiv="cache-control" content="no-cache" />
<meta http-equiv="Pragma" content="no-cache" />
<meta http-equiv="Expires" content="-1" />
<!--
Note to customizers: the body of the webrev is IDed as SUNWwebrev
to allow easy overriding by users of webrev via the userContent.css
mechanism available in some browsers.
For example, to have all "removed" information be red instead of
brown, set a rule in your userContent.css file like:
body#SUNWwebrev span.removed { color: red ! important; }
-->
<style type="text/css" media="screen">
body {
background-color: #eeeeee;
}
hr {
border: none 0;
border-top: 1px solid #aaa;
height: 1px;
}
div.summary {
font-size: .8em;
border-bottom: 1px solid #aaa;
padding-left: 1em;
padding-right: 1em;
}
div.summary h2 {
margin-bottom: 0.3em;
}
div.summary table th {
text-align: right;
vertical-align: top;
white-space: nowrap;
}
span.lineschanged {
font-size: 0.7em;
}
span.oldmarker {
color: red;
font-size: large;
font-weight: bold;
}
span.newmarker {
color: green;
font-size: large;
font-weight: bold;
}
span.removed {
color: brown;
}
span.changed {
color: blue;
}
span.new {
color: blue;
font-weight: bold;
}
a.print { font-size: x-small; }
</style>
<style type="text/css" media="print">
pre { font-size: 0.8em; font-family: courier, monospace; }
span.removed { color: #444; font-style: italic }
span.changed { font-weight: bold; }
span.new { font-weight: bold; }
span.newmarker { font-size: 1.2em; font-weight: bold; }
span.oldmarker { font-size: 1.2em; font-weight: bold; }
a.print {display: none}
hr { border: none 0; border-top: 1px solid #aaa; height: 1px; }
</style>
'
#
# UDiffs need a slightly different CSS rule for 'new' items (we don't
# want them to be bolded as we do in cdiffs or sdiffs).
#
UDIFFCSS='
<style type="text/css" media="screen">
span.new {
color: blue;
font-weight: normal;
}
</style>
'
#
# input_cmd | html_quote | output_cmd
# or
# html_quote filename | output_cmd
#
# Make a piece of source code safe for display in an HTML <pre> block.
#
html_quote()
{
sed -e "s/&/\&/g" -e "s/&#\([x]*[0-9A-Fa-f]\{2,5\}\);/\&#\1;/g" -e "s/</\</g" -e "s/>/\>/g" "$@" | expand
}
#
# input_cmd | html_quote | output_cmd
# or
# html_dequote filename | output_cmd
#
# Replace HTML entities with literals
#
html_dequote()
{
sed -e "s/"/\"/g" -e "s/'/\'/g" -e "s/&/\&/g" -e "s/</<'/g" -e "s/>/>/g" "$@" | expand
}
#
# input_cmd | bug2url | output_cmd
#
# Scan for bugids and insert <a> links to the relevent bug database.
#
bug2url()
{
sed -e 's|[0-9]\{5,\}|<a href=\"'$BUGURL$IDPREFIX'&\">&</a>|g'
}
#
# strip_unchanged <infile> | output_cmd
#
# Removes chunks of sdiff documents that have not changed. This makes it
# easier for a code reviewer to find the bits that have changed.
#
# Deleted lines of text are replaced by a horizontal rule. Some
# identical lines are retained before and after the changed lines to
# provide some context. The number of these lines is controlled by the
# variable C in the $AWK script below.
#
# The script detects changed lines as any line that has a "<span class="
# string embedded (unchanged lines have no particular class and are not
# part of a <span>). Blank lines (without a sequence number) are also
# detected since they flag lines that have been inserted or deleted.
#
strip_unchanged()
{
$AWK '
BEGIN { C = c = 20 }
NF == 0 || /span class=/ {
if (c > C) {
c -= C
inx = 0
if (c > C) {
print "\n</pre><hr></hr><pre>"
inx = c % C
c = C
}
for (i = 0; i < c; i++)
print ln[(inx + i) % C]
}
c = 0;
print
next
}
{ if (c >= C) {
ln[c % C] = $0
c++;
next;
}
c++;
print
}
END { if (c > (C * 2)) print "\n</pre><hr></hr>" }
' $1
}
prev_index_next_html()
{
RELROOT=$1
PREVIOUS_FILE=$2
NEXT_FILE=$3
EXTENSION=$4
if [[ $PREVIOUS_FILE = "no_prev" ]]
then
PREV_LINK="< prev"
else
PREV_LINK="<a href='${RELROOT}${PREVIOUS_FILE}.${EXTENSION}.html' target='_top'>< prev</a>"
fi
if [[ $NEXT_FILE = "no_next" ]]
then
NEXT_LINK="next >"
else
NEXT_LINK="<a href='${RELROOT}${NEXT_FILE}.${EXTENSION}.html' target='_top'>next ></a>"
fi
print "<center>${PREV_LINK} <a href='${RELROOT}index.html' target='_top'>index</a> ${NEXT_LINK}</center>"
}
#
# sdiff_to_html
#
# This function takes two files as arguments, obtains their diff, and
# processes the diff output to present the files as an HTML document with
# the files displayed side-by-side, differences shown in color. It also
# takes a delta comment, rendered as an HTML snippet, as the third
# argument. The function takes two files as arguments, then the name of
# file, the path, and the comment. The HTML will be delivered on stdout,
# e.g.
#
# $ sdiff_to_html old/usr/src/tools/scripts/webrev.sh \
# new/usr/src/tools/scripts/webrev.sh \
# webrev.sh usr/src/tools/scripts \
# '<a href="https://bugs.openjdk.java.net/browse/JDK-1234567">
# JDK-1234567</a> my bugid' > <file>.html
#
# framed_sdiff() is then called which creates $2.frames.html
# in the webrev tree.
#
# FYI: This function is rather unusual in its use of awk. The initial
# diff run produces conventional diff output showing changed lines mixed
# with editing codes. The changed lines are ignored - we're interested in
# the editing codes, e.g.
#
# 8c8
# 57a61
# 63c66,76
# 68,93d80
# 106d90
# 108,110d91
#
# These editing codes are parsed by the awk script and used to generate
# another awk script that generates HTML, e.g the above lines would turn
# into something like this:
#
# BEGIN { printf "<pre>\n" }
# function sp(n) {for (i=0;i<n;i++)printf "\n"}
# function wl(n) {printf "<font color=%s>%4d %s </font>\n", n, NR, $0}
# NR==8 {wl("#7A7ADD");next}
# NR==54 {wl("#7A7ADD");sp(3);next}
# NR==56 {wl("#7A7ADD");next}
# NR==57 {wl("black");printf "\n"; next}
# : :
#
# This script is then run on the original source file to generate the
# HTML that corresponds to the source file.
#
# The two HTML files are then combined into a single piece of HTML that
# uses an HTML table construct to present the files side by side. You'll
# notice that the changes are color-coded:
#
# black - unchanged lines
# blue - changed lines
# bold blue - new lines
# brown - deleted lines
#
# Blank lines are inserted in each file to keep unchanged lines in sync
# (side-by-side). This format is familiar to users of sdiff(1) or
# Teamware's filemerge tool.
#
sdiff_to_html()
{
diff $DIFFOPTS $1 $2 > /tmp/$$.diffs
TNAME=$3
TPATH=$4
COMMENT=$5
RELROOT=$6
PREVIOUS_FILE=$7
NEXT_FILE=$8
#
# Now we have the diffs, generate the HTML for the old file.
#
$AWK '
BEGIN {
printf "function sp(n) {for (i=0;i<n;i++)printf \"\\n\"}\n"
printf "function removed() "
printf "{printf \"<span class=\\\"removed\\\">%%4d %%s</span>\\n\", NR, $0}\n"
printf "function changed() "
printf "{printf \"<span class=\\\"changed\\\">%%4d %%s</span>\\n\", NR, $0}\n"
printf "function bl() {printf \"%%4d %%s\\n\", NR, $0}\n"
}
/^</ {next}
/^>/ {next}
/^---/ {next}
{
split($1, a, /[cad]/) ;
if (index($1, "a")) {
if (a[1] == 0) {
n = split(a[2], r, /,/);
if (n == 1)
printf "BEGIN\t\t{sp(1)}\n"
else
printf "BEGIN\t\t{sp(%d)}\n",\
(r[2] - r[1]) + 1
next
}
printf "NR==%s\t\t{", a[1]
n = split(a[2], r, /,/);
s = r[1];
if (n == 1)
printf "bl();printf \"\\n\"; next}\n"
else {
n = r[2] - r[1]
printf "bl();sp(%d);next}\n",\
(r[2] - r[1]) + 1
}
next
}
if (index($1, "d")) {
n = split(a[1], r, /,/);
n1 = r[1]
n2 = r[2]
if (n == 1)
printf "NR==%s\t\t{removed(); next}\n" , n1
else
printf "NR==%s,NR==%s\t{removed(); next}\n" , n1, n2
next
}
if (index($1, "c")) {
n = split(a[1], r, /,/);
n1 = r[1]
n2 = r[2]
final = n2
d1 = 0
if (n == 1)
printf "NR==%s\t\t{changed();" , n1
else {
d1 = n2 - n1
printf "NR==%s,NR==%s\t{changed();" , n1, n2
}
m = split(a[2], r, /,/);
n1 = r[1]
n2 = r[2]
if (m > 1) {
d2 = n2 - n1
if (d2 > d1) {
if (n > 1) printf "if (NR==%d)", final
printf "sp(%d);", d2 - d1
}
}
printf "next}\n" ;
next
}
}
END { printf "{printf \"%%4d %%s\\n\", NR, $0 }\n" }
' /tmp/$$.diffs > /tmp/$$.file1
#
# Now generate the HTML for the new file
#
$AWK '
BEGIN {
printf "function sp(n) {for (i=0;i<n;i++)printf \"\\n\"}\n"
printf "function new() "
printf "{printf \"<span class=\\\"new\\\">%%4d %%s</span>\\n\", NR, $0}\n"
printf "function changed() "
printf "{printf \"<span class=\\\"changed\\\">%%4d %%s</span>\\n\", NR, $0}\n"
printf "function bl() {printf \"%%4d %%s\\n\", NR, $0}\n"
}
/^</ {next}
/^>/ {next}
/^---/ {next}
{
split($1, a, /[cad]/) ;
if (index($1, "d")) {
if (a[2] == 0) {
n = split(a[1], r, /,/);
if (n == 1)
printf "BEGIN\t\t{sp(1)}\n"
else
printf "BEGIN\t\t{sp(%d)}\n",\
(r[2] - r[1]) + 1
next
}
printf "NR==%s\t\t{", a[2]
n = split(a[1], r, /,/);
s = r[1];
if (n == 1)
printf "bl();printf \"\\n\"; next}\n"
else {
n = r[2] - r[1]
printf "bl();sp(%d);next}\n",\
(r[2] - r[1]) + 1
}
next
}
if (index($1, "a")) {
n = split(a[2], r, /,/);
n1 = r[1]
n2 = r[2]
if (n == 1)
printf "NR==%s\t\t{new() ; next}\n" , n1
else
printf "NR==%s,NR==%s\t{new() ; next}\n" , n1, n2
next
}
if (index($1, "c")) {
n = split(a[2], r, /,/);
n1 = r[1]
n2 = r[2]
final = n2
d2 = 0;
if (n == 1) {
final = n1
printf "NR==%s\t\t{changed();" , n1
} else {
d2 = n2 - n1
printf "NR==%s,NR==%s\t{changed();" , n1, n2
}
m = split(a[1], r, /,/);
n1 = r[1]
n2 = r[2]
if (m > 1) {
d1 = n2 - n1
if (d1 > d2) {
if (n > 1) printf "if (NR==%d)", final
printf "sp(%d);", d1 - d2
}
}
printf "next}\n" ;
next
}
}
END { printf "{printf \"%%4d %%s\\n\", NR, $0 }\n" }
' /tmp/$$.diffs > /tmp/$$.file2
#
# Post-process the HTML files by running them back through $AWK
#
html_quote < $1 | $AWK -f /tmp/$$.file1 > /tmp/$$.file1.html
html_quote < $2 | $AWK -f /tmp/$$.file2 > /tmp/$$.file2.html
#
# Now combine into a valid HTML file and side-by-side into a table
#
print "$HTML<head>$STDHEAD"
print "<title>$WNAME Sdiff $TPATH </title>"
print "</head><body id=\"SUNWwebrev\">"
prev_index_next_html "$RELROOT" "$PREVIOUS_FILE" "$NEXT_FILE" "sdiff"
print "<h2>$TPATH/$TNAME</h2>"
print "<a class=\"print\" href=\"javascript:print()\">Print this page</a>"
print "<pre>$COMMENT</pre>\n"
print "<table><tr valign=\"top\">"
print "<td><pre>"
strip_unchanged /tmp/$$.file1.html
print "</pre></td><td><pre>"
strip_unchanged /tmp/$$.file2.html
print "</pre></td>"
print "</tr></table>"
prev_index_next_html "$RELROOT" "$PREVIOUS_FILE" "$NEXT_FILE" "sdiff"
print "</body></html>"
framed_sdiff $TNAME $TPATH /tmp/$$.file1.html /tmp/$$.file2.html \
"$COMMENT" "$RELROOT" "$PREVIOUS_FILE" "$NEXT_FILE"
}
#
# framed_sdiff <filename> <filepath> <lhsfile> <rhsfile> <comment>
#
# Expects lefthand and righthand side html files created by sdiff_to_html.
# We use insert_anchors() to augment those with HTML navigation anchors,
# and then emit the main frame. Content is placed into:
#
# $WDIR/DIR/$TNAME.lhs.html
# $WDIR/DIR/$TNAME.rhs.html
# $WDIR/DIR/$TNAME.frames.html
#
# NOTE: We rely on standard usage of $WDIR and $DIR.
#
function framed_sdiff
{
typeset TNAME=$1
typeset TPATH=$2
typeset lhsfile=$3
typeset rhsfile=$4
typeset comments=$5
typeset RTOP
typeset RELROOT=$6
typeset PREVIOUS_FILE=$7
typeset NEXT_FILE=$8
# Enable html files to access WDIR via a relative path.
RTOP=$(relative_dir $TPATH $WDIR)
# Make the rhs/lhs files and output the frameset file.
print "$HTML<head>$STDHEAD" > $WDIR/$DIR/$TNAME.lhs.html
cat >> $WDIR/$DIR/$TNAME.lhs.html <<-EOF
<script type="text/javascript" src="$RTOP/ancnav.js"></script>
</head>
<body id="SUNWwebrev" onkeypress="keypress(event);">
<a name="0"></a>
<pre>$comments</pre><hr></hr>
EOF
cp $WDIR/$DIR/$TNAME.lhs.html $WDIR/$DIR/$TNAME.rhs.html
insert_anchors $lhsfile >> $WDIR/$DIR/$TNAME.lhs.html
insert_anchors $rhsfile >> $WDIR/$DIR/$TNAME.rhs.html
close='</body></html>'
print $close >> $WDIR/$DIR/$TNAME.lhs.html
print $close >> $WDIR/$DIR/$TNAME.rhs.html
typeset PREV_NEXT_FILE_NAME=$WDIR/$DIR/$TNAME.frames.prev_next.html
print "<body bgcolor='#eeeeee'><html>" > $PREV_NEXT_FILE_NAME
prev_index_next_html "$RELROOT" "$PREVIOUS_FILE" "$NEXT_FILE" "frames" >> $PREV_NEXT_FILE_NAME
print "</html></body>" >> $PREV_NEXT_FILE_NAME
print "$FRAMEHTML<head>$STDHEAD" > $WDIR/$DIR/$TNAME.frames.html
print "<title>$WNAME Framed-Sdiff " \
"$TPATH/$TNAME</title> </head>" >> $WDIR/$DIR/$TNAME.frames.html
cat >> $WDIR/$DIR/$TNAME.frames.html <<-EOF
<frameset rows="*,90">
<frameset cols="50%,50%">
<frame src="$TNAME.lhs.html" scrolling="auto" name="lhs" />
<frame src="$TNAME.rhs.html" scrolling="auto" name="rhs" />
</frameset>
<frameset rows="60, 30">
<frame src="$RTOP/ancnav.html" scrolling="no" marginwidth="0"
marginheight="0" name="nav" />
<frame src="$TNAME.frames.prev_next.html" scrolling="no" marginwidth="0"
marginheight="0" name="prev_next" />
</frameset>
<noframes>
<body id="SUNWwebrev">
Alas 'frames' webrev requires that your browser supports frames
and has the feature enabled.
</body>
</noframes>
</frameset>
</html>
EOF
}
#
# fix_postscript
#
# Merge codereview output files to a single conforming postscript file, by:
# - removing all extraneous headers/trailers
# - making the page numbers right
# - removing pages devoid of contents which confuse some
# postscript readers.
#
# From Casper.
#
function fix_postscript
{
infile=$1
cat > /tmp/$$.crmerge.pl << \EOF
print scalar(<>); # %!PS-Adobe---
print "%%Orientation: Landscape\n";
$pno = 0;
$doprint = 1;
$page = "";
while (<>) {
next if (/^%%Pages:\s*\d+/);
if (/^%%Page:/) {
if ($pno == 0 || $page =~ /\)S/) {
# Header or single page containing text
print "%%Page: ? $pno\n" if ($pno > 0);
print $page;
$pno++;
} else {
# Empty page, skip it.
}
$page = "";
$doprint = 1;
next;
}
# Skip from %%Trailer of one document to Endprolog
# %%Page of the next
$doprint = 0 if (/^%%Trailer/);
$page .= $_ if ($doprint);
}
if ($page =~ /\)S/) {
print "%%Page: ? $pno\n";
print $page;
} else {
$pno--;
}
print "%%Trailer\n%%Pages: $pno\n";
EOF
$PERL /tmp/$$.crmerge.pl < $infile
}
#
# input_cmd | insert_anchors | output_cmd
#
# Flag blocks of difference with sequentially numbered invisible
# anchors. These are used to drive the frames version of the
# sdiffs output.
#
# NOTE: Anchor zero flags the top of the file irrespective of changes,
# an additional anchor is also appended to flag the bottom.
#
# The script detects changed lines as any line that has a "<span
# class=" string embedded (unchanged lines have no class set and are
# not part of a <span>. Blank lines (without a sequence number)
# are also detected since they flag lines that have been inserted or
# deleted.
#
function insert_anchors
{
$AWK '
function ia() {
# This should be able to be a singleton <a /> but that
# seems to trigger a bug in firefox a:hover rule processing
printf "<a name=\"%d\" id=\"anc%d\"></a>", anc, anc++;
}
BEGIN {
anc=1;
inblock=1;
printf "<pre>\n";
}
NF == 0 || /^<span class=/ {
if (inblock == 0) {
ia();
inblock=1;
}
print;
next;
}
{
inblock=0;
print;
}
END {
ia();
printf "<b style=\"font-size: large; color: red\">";
printf "--- EOF ---</b>"
for(i=0;i<8;i++) printf "\n\n\n\n\n\n\n\n\n\n";
printf "</pre>"
printf "<form name=\"eof\">";
printf "<input name=\"value\" value=\"%d\" type=\"hidden\" />",
anc - 1;
printf "</form>";
}
' $1
}
#
# relative_dir
#
# Print a relative return path from $1 to $2. For example if
# $1=/tmp/myreview/raw_files/usr/src/tools/scripts and $2=/tmp/myreview,
# this function would print "../../../../".
#
# In the event that $1 is not in $2 a warning is printed to stderr,
# and $2 is returned-- the result of this is that the resulting webrev
# is not relocatable.
#
function relative_dir
{
d1=$1
d2=$2
if [[ "$d1" == "." ]]; then
print "."
else
typeset cur="${d1##$d2?(/)}"
typeset ret=""
if [[ $d2 == $cur ]]; then # Should never happen.
# Should never happen.
print -u2 "\nWARNING: relative_dir: \"$1\" not relative "
print -u2 "to \"$2\". Check input paths. Framed webrev "
print -u2 "will not be relocatable!"
print $2
return
fi
while [[ -n ${cur} ]];
do
cur=${cur%%*(/)*([!/])}
if [[ -z $ret ]]; then
ret=".."
else
ret="../$ret"
fi
done
print $ret
fi
}
#
# frame_nav_js
#
# Emit javascript for frame navigation
#
function frame_nav_js
{
cat << \EOF
var myInt;
var scrolling=0;
var sfactor = 3;
var scount=10;
function scrollByPix() {
if (scount<=0) {
sfactor*=1.2;
scount=10;
}
parent.lhs.scrollBy(0,sfactor);
parent.rhs.scrollBy(0,sfactor);
scount--;
}
function scrollToAnc(num) {
// Update the value of the anchor in the form which we use as
// storage for this value. setAncValue() will take care of
// correcting for overflow and underflow of the value and return
// us the new value.
num = setAncValue(num);
// Set location and scroll back a little to expose previous
// lines.
//
// Note that this could be improved: it is possible although
// complex to compute the x and y position of an anchor, and to
// scroll to that location directly.
//
parent.lhs.location.replace(parent.lhs.location.pathname + "#" + num);
parent.rhs.location.replace(parent.rhs.location.pathname + "#" + num);
parent.lhs.scrollBy(0,-30);
parent.rhs.scrollBy(0,-30);
}
function getAncValue()
{
return (parseInt(parent.nav.document.diff.real.value));
}
function setAncValue(val)
{
if (val <= 0) {
val = 0;
parent.nav.document.diff.real.value = val;
parent.nav.document.diff.display.value = "BOF";
return (val);
}
//
// The way we compute the max anchor value is to stash it
// inline in the left and right hand side pages-- it's the same
// on each side, so we pluck from the left.
//
maxval = parent.lhs.document.eof.value.value;
if (val < maxval) {
parent.nav.document.diff.real.value = val;
parent.nav.document.diff.display.value = val.toString();
return (val);
}
// this must be: val >= maxval
val = maxval;
parent.nav.document.diff.real.value = val;
parent.nav.document.diff.display.value = "EOF";
return (val);
}
function stopScroll() {
if (scrolling==1) {
clearInterval(myInt);
scrolling=0;
}
}
function startScroll() {
stopScroll();
scrolling=1;
myInt=setInterval("scrollByPix()",10);
}
function handlePress(b) {
switch (b) {
case 1 :
scrollToAnc(-1);
break;
case 2 :
scrollToAnc(getAncValue() - 1);
break;
case 3 :
sfactor=-3;
startScroll();
break;
case 4 :
sfactor=3;
startScroll();
break;
case 5 :
scrollToAnc(getAncValue() + 1);
break;
case 6 :
scrollToAnc(999999);
break;
}
}
function handleRelease(b) {
stopScroll();
}
function keypress(ev) {
var keynum;
var keychar;
if (window.event) { // IE
keynum = ev.keyCode;
} else if (ev.which) { // non-IE
keynum = ev.which;
}
keychar = String.fromCharCode(keynum);
if (keychar == "k") {
handlePress(2);
return (0);
} else if (keychar == "j" || keychar == " ") {
handlePress(5);
return (0);
}
return (1);
}
function ValidateDiffNum(){
val = parent.nav.document.diff.display.value;
if (val == "EOF") {
scrollToAnc(999999);
return;
}
if (val == "BOF") {
scrollToAnc(0);
return;
}
i=parseInt(val);
if (isNaN(i)) {
parent.nav.document.diff.display.value = getAncValue();
} else {
scrollToAnc(i);
}
return false;
}
EOF
}
#
# frame_navigation
#
# Output anchor navigation file for framed sdiffs.
#
function frame_navigation
{
print "$HTML<head>$STDHEAD"
cat << \EOF
<title>Anchor Navigation</title>
<meta http-equiv="Content-Script-Type" content="text/javascript" />
<meta http-equiv="Content-Type" content="text/html" />
<style type="text/css">
div.button td { padding-left: 5px; padding-right: 5px;
background-color: #eee; text-align: center;
border: 1px #444 outset; cursor: pointer; }
div.button a { font-weight: bold; color: black }
div.button td:hover { background: #ffcc99; }
</style>
EOF
print "<script type=\"text/javascript\" src=\"ancnav.js\"></script>"
cat << \EOF
</head>
<body id="SUNWwebrev" bgcolor="#eeeeee" onload="document.diff.real.focus();"
onkeypress="keypress(event);">
<noscript lang="javascript">
<center>
<p><big>Framed Navigation controls require Javascript</big><br />
Either this browser is incompatable or javascript is not enabled</p>
</center>
</noscript>
<table width="100%" border="0" align="center">
<tr>
<td valign="middle" width="25%">Diff navigation:
Use 'j' and 'k' for next and previous diffs; or use buttons
at right</td>
<td align="center" valign="top" width="50%">
<div class="button">
<table border="0" align="center">
<tr>
<td>
<a onMouseDown="handlePress(1);return true;"
onMouseUp="handleRelease(1);return true;"
onMouseOut="handleRelease(1);return true;"
onClick="return false;"
title="Go to Beginning Of file">BOF</a></td>
<td>
<a onMouseDown="handlePress(3);return true;"
onMouseUp="handleRelease(3);return true;"
onMouseOut="handleRelease(3);return true;"
title="Scroll Up: Press and Hold to accelerate"
onClick="return false;">Scroll Up</a></td>
<td>
<a onMouseDown="handlePress(2);return true;"
onMouseUp="handleRelease(2);return true;"
onMouseOut="handleRelease(2);return true;"
title="Go to previous Diff"
onClick="return false;">Prev Diff</a>
</td></tr>
<tr>
<td>
<a onMouseDown="handlePress(6);return true;"
onMouseUp="handleRelease(6);return true;"
onMouseOut="handleRelease(6);return true;"
onClick="return false;"
title="Go to End Of File">EOF</a></td>
<td>
<a onMouseDown="handlePress(4);return true;"
onMouseUp="handleRelease(4);return true;"
onMouseOut="handleRelease(4);return true;"
title="Scroll Down: Press and Hold to accelerate"
onClick="return false;">Scroll Down</a></td>
<td>
<a onMouseDown="handlePress(5);return true;"
onMouseUp="handleRelease(5);return true;"