[Help-source-highlight] Idea: Common highlighter interface

[André Simon]

Hi,

this is the developer of highlight (without GNU prefix, see 
http://andre-simon.de), the other universal syntax highlighter you probably 
know ;)
As both utilities have a very similar use case, they already share some command 
line options. My suggestion is to enhance both apps' interfaces and docs to 
offer the same long options for (basic) highlighting. Third party apps like 
webgit or viewcvs could implement plug-ins which work with gnu-highlight or 
highlight, no matter which app is installed.
I only intend to harmonize the CLI, not the language definitions, C APIs or 
other internal stuff.

Options already shared:

help
version
input
output
out-format
doc
no-doc
css
src-lang
tab
line-number
line-number-ref
output-dir
failsafe
title
data-dir
ctags-file

---
distinct options source-highlight:

detailed-help*
lang-list*
outlang-list*
header
footer
style-file*
style-css-file
style-defaults
outlang-def
outlang-map
output-dir*
lang-def *
lang-map
show-lang-elements *
infer-lang 

---
distinct options highlight:

batch-recursive
add-config-dir
config-file
outdir*
list-langs *
progress
quiet
syntax*
verbose*
list-themes 
force
plug-in
print-config 
print-style
skip
start-nested
validate-input 
style-outfile
style-infile
fragment
reformat
include-style 
line-length
line-number-length
font
font-size
line-number-start
style
replace-tabs
doc-title
encoding
wrap-simple
wrap
zeroes
kw-case
delim-cr
no-trailing-nl
anchors
anchor-prefix
anchor-filename
print-index
ordered-list
class-name
inline-css
enclose-pre
babel
replace-quotes
pretty-symbols
page-size
char-styles
height
width

* options which are not shared, but have close matches in both apps

Best regards
André