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Diffstat (limited to 'Build/source/utils/texinfo/util/fixref.gawk')
-rw-r--r-- | Build/source/utils/texinfo/util/fixref.gawk | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/Build/source/utils/texinfo/util/fixref.gawk b/Build/source/utils/texinfo/util/fixref.gawk new file mode 100644 index 00000000000..f0e3cf6d606 --- /dev/null +++ b/Build/source/utils/texinfo/util/fixref.gawk @@ -0,0 +1,145 @@ +#! /usr/local/bin/gawk -f + +# fixref.awk --- fix xrefs in texinfo documents +# Copyright, 1991, Arnold David Robbins, arnold@skeeve.atl.ga.us +# Copyright, 1998, Arnold David Robbins, arnold@gnu.org + +# FIXREF is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# FIXREF is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + +# Updated: Jul 21 1992 --- change unknown +# Updated: Jul 18 1997 --- bug fix + +# usage: gawk -f fixref.awk input-file > output-file +# or if you have #!: fixref.awk input-file > output-file + +# Limitations: +# 1. no more than one cross reference on a line +# 2. cross references may not cross a newline + +BEGIN \ +{ + # we make two passes over the file. To do that we artificially + # tweak the argument vector to do a variable assignment + + if (ARGC != 2) { + printf("usage: %s texinfo-file\n", ARGV[0]) > "/dev/stderr" + exit 1 + } + ARGV[2] = "pass=2" + ARGV[3] = ARGV[1] + ARGC = 4 + + # examine paragraphs + RS = "" + + heading = "@(chapter|appendix|unnumbered|(appendix(sec|subsec|subsubsec))|section|subsection|subsubsection|unnumberedsec|heading|top)" + + pass = 1 + + # put space between paragraphs on output + ORS = "\n\n" +} + +pass == 1 && NF == 0 { next } + +# pass == 1 && /@node/ \ +# bug fix 7/18/96 +pass == 1 && /^@node/ \ +{ + lname = name = "" + n = split($0, lines, "\n") + for (i = 1; i <= n; i++) { + if (lines[i] ~ ("^" heading)) { + sub(heading, "", lines[i]) + sub(/^[ \t]*/, "", lines[i]) + lname = lines[i] +# printf "long name is '%s'\n", lines[i] + } else if (lines[i] ~ /@node/) { + sub(/@node[ \t]*/, "", lines[i]) + sub(/[ \t]*,.*$/, "", lines[i]) + name = lines[i] +# printf "node name is '%s'\n", lines[i] + } + } + if (name && lname) + names[name] = lname + else if (lname) + printf("node name for %s missing!\n", lname) > "/dev/stderr" + else + printf("long name for %s missing!\n", name) > "/dev/stderr" + + if (name ~ /:/) + printf("node `%s' contains a `:'\n", name) > "/dev/stderr" + + if (lname) { + if (lname ~ /:/) + printf("name `%s' contains a `:'\n", lname) > "/dev/stderr" + else if (lname ~ /,/) { + printf("name `%s' contains a `,'\n", lname) > "/dev/stderr" + gsub(/,/, " ", lname) + names[name] = lname # added 7/18/97 + } + } +} + +pass == 2 && /@(x|px)?ref{/ \ +{ + # split the paragraph into lines + # write them out one by one after fixing them + n = split($0, lines, "\n") + for (i = 1; i <= n; i++) + if (lines[i] ~ /@(x|px)?ref{/) { + res = updateref(lines[i]) + printf "%s\n", res + } else + printf "%s\n", lines[i] + + printf "\n" # avoid ORS + next +} + +function updateref(orig, refkind, line) +{ + line = orig # work on a copy + + # find the beginning of the reference + match(line, "@(x|px)?ref{") + refkind = substr(line, RSTART, RLENGTH) + + # pull out just the node name + sub(/.*ref{/, "", line) + sub(/}.*$/, "", line) + sub(/,.*/, "", line) + +# debugging +# printf("found ref to node '%s'\n", line) > "/dev/stderr" + + # If the node name and the section name are the same + # we don't want to bother doing this. + + if (! (line in names)) # sanity checking + printf("no long name for %s\n", line) > "/dev/stderr" + else if (names[line] != line && names[line] !~ /[:,]/) { + # build up new ref + newref = refkind line ", ," names[line] "}" + pat = refkind line "[^}]*}" + + sub(pat, newref, orig) + } + + return orig +} + +pass == 2 { print } |