doc: escape .hg at bol in manpages with make (issue1072)

This works around a bug in old docbook stylesheets.
Remove .*.swp example from hgignore.5.txt.

Diagnosis and workaround thanks to Alexis S. L. Carvalho.

doc/Makefile

@@ -1,44 +1,46
 SOURCES=$(wildcard *.[0-9].txt)
 MAN=$(SOURCES:%.txt=%)
 HTML=$(SOURCES:%.txt=%.html)
 PREFIX=/usr/local
 MANDIR=$(PREFIX)/share/man
 INSTALL=install -c
 
 all: man html
 
 man: $(MAN)
 
 html: $(HTML)
 
 hg.1.txt: hg.1.gendoc.txt
 	touch hg.1.txt
 
 hg.1.gendoc.txt: ../mercurial/commands.py ../mercurial/help.py
 	python gendoc.py > $@
 
 %: %.xml
-	xmlto man $*.xml
+	xmlto man $*.xml ; \
+	sed -e 's/^\.hg/\\\&.hg/' $* > $*~ ; \
+	mv $*~ $*
 
 %.xml: %.txt
 	asciidoc -d manpage -b docbook $*.txt
 
 %.html: %.txt
 	asciidoc -b html4 $*.txt || asciidoc -b html $*.txt
 
 MANIFEST: man html
 	# versionned files are already in the main MANIFEST
 	$(RM) $@
 	for i in $(MAN) $(HTML) hg.1.gendoc.txt; do \
 	  echo "doc/$$i" >> $@ ; \
 	done
 
 install: man
 	for i in $(MAN) ; do \
 	  subdir=`echo $$i | sed -n 's/..*\.\([0-9]\)$$/man\1/p'` ; \
 	  mkdir -p $(DESTDIR)$(MANDIR)/$$subdir ; \
 	  $(INSTALL) $$i $(DESTDIR)$(MANDIR)/$$subdir ; \
 	done
 
 clean:
 	$(RM) $(MAN) $(MAN:%=%.xml) $(MAN:%=%.html) *.[0-9].gendoc.txt MANIFEST

doc/hgignore.5.txt

@@ -1,92 +1,91
 HGIGNORE(5)
 ===========
 Vadim Gelfer <[e-mail]>
 
 NAME
 ----
 hgignore - syntax for Mercurial ignore files
 
 SYNOPSIS
 --------
 
 The Mercurial system uses a file called .hgignore in the root
 directory of a repository to control its behavior when it finds files
 that it is not currently managing.
 
 DESCRIPTION
 -----------
 
 Mercurial ignores every unmanaged file that matches any pattern in an
 ignore file.  The patterns in an ignore file do not apply to files
 managed by Mercurial.  To control Mercurial's handling of files that
 it manages, see the hg(1) man page.  Look for the "-I" and "-X"
 options.
 
 In addition, a Mercurial configuration file can point to a set of
 per-user or global ignore files.  See the hgrc(5) man page for details
 of how to configure these files.  Look for the "ignore" entry in the
 "ui" section.
 
 SYNTAX
 ------
 
 An ignore file is a plain text file consisting of a list of patterns,
 with one pattern per line.  Empty lines are skipped.  The "#"
 character is treated as a comment character, and the "\" character is
 treated as an escape character.
 
 Mercurial supports several pattern syntaxes.  The default syntax used
 is Python/Perl-style regular expressions.
 
 To change the syntax used, use a line of the following form:
 
 syntax: NAME
 
 where NAME is one of the following:
 
 regexp::
   Regular expression, Python/Perl syntax.
 glob::
   Shell-style glob.
 
 The chosen syntax stays in effect when parsing all patterns that
 follow, until another syntax is selected.
 
 Neither glob nor regexp patterns are rooted.  A glob-syntax pattern of
 the form "*.c" will match a file ending in ".c" in any directory, and
 a regexp pattern of the form "\.c$" will do the same.  To root a
 regexp pattern, start it with "^".
 
 EXAMPLE
 -------
 
 Here is an example ignore file.
 
   # use glob syntax.
   syntax: glob
 
   *.elc
   *.pyc
   *~
-  .*.swp
 
   # switch to regexp syntax.
   syntax: regexp
   ^\.pc/
 
 AUTHOR
 ------
 Vadim Gelfer <[e-mail]>
 
 Mercurial was written by Matt Mackall <[e-mail]>.
 
 SEE ALSO
 --------
 hg(1), hgrc(5)
 
 COPYING
 -------
 This manual page is copyright 2006 Vadim Gelfer.
 Mercurial is copyright 2005-2007 Matt Mackall.
 Free use of this software is granted under the terms of the GNU General
 Public License (GPL).