LyX chapter lister

Ruby
1

Hi all,

The script under my sig is a filter that takes a LyX file from stdin and
spits
out the chapters. Right now it doesn’t do parts, but it probably will
later
on. Perhaps some day it will handle the whole hierchy of
Part/chapter/section/subsection/subsubsection/paragraph/subparagraph.
Consider this version public domain with no warranty.

Steve L.

[email protected]

#!/usr/bin/ruby

SLURP STDIN

lines = []
while line = gets
lines.push(line.chomp)
end

FIND CHAPTER NAMES

temp_lineno = -9999
chapno = 0
chapname = “”
in_chapter = false
lines.each do |line|
if line =~ /^\s*\layout Chapter/
in_chapter = true
chapname = “”
chapno += 1
# puts “dia startchapter " + line + in_chapter.to_s
elsif in_chapter and line =~ /^\s*\layout/
printf(”%2d: %s\n", chapno, chapname) if chapno > 0
#puts “dia endchapter " + line
in_chapter = false
elsif in_chapter
chapname += (” " + line) unless line =~ /^\s*\/ or line =~ /^\s*$/
end
end
printf(“%2d: %s\n”, chapno, chapname) if chapname and chapname != “”

2

Steve L. [email protected] writes:

[email protected]

#!/usr/bin/ruby

SLURP STDIN

lines = []
while line = gets
lines.push(line.chomp)
end

lines = STDIN.readlines

FIND CHAPTER NAMES

temp_lineno = -9999
chapno = 0
chapname = “”
in_chapter = false
lines.each do |line|

Alternatively, use ARGF.each { |line|

  chapname += (" " + line) unless line =~ /^\s*\\/ or line =~ /^\s*$/

elsif in_chapter && line =~ /^\s*(\|$)/
chapname << " " << line
end

end
end
printf(“%2d: %s\n”, chapno, chapname) if chapname and chapname != “”

Also, I’d use puts and #{} instead of printf, but tastes vary. Your
code would be a good example for the flip-flop operator (no religious
wars, please):

if (line =~ /^\s*\layout Chapter/)…(line =~ /^\s*\layout/)
if line =~ /^\s*(\|$)/
chapname << " " << line
end
end

Happy hacking,

3

On Saturday 10 December 2005 02:01 pm, Christian N. wrote:

Steve L. [email protected] writes:

#!/usr/bin/ruby

SLURP STDIN

lines = []
while line = gets
lines.push(line.chomp)
end

lines = STDIN.readlines

Thanks, I was looking for something like that.

Steve L.

[email protected]