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if not modules then modules = { } end modules ['mtx-babel'] = {
version = 1.001,
comment = "companion to mtxrun.lua",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
scripts = scripts or { }
scripts.grep = scripts.grep or { }
logs.extendbanner("Simple Grepper 0.10")
local find, format = string.find, string.format
local cr = lpeg.P("\r")
local lf = lpeg.P("\n")
local crlf = cr * lf
local newline = crlf + cr + lf
local content = lpeg.C((1-newline)^0) * newline
local write_nl = texio.write_nl
function scripts.grep.find(pattern, files, offset)
if pattern and pattern ~= "" then
statistics.starttiming(scripts.grep)
local nofmatches, noffiles, nofmatchedfiles = 0, 0, 0
local n, m, name, check = 0, 0, "", nil
local count, nocomment = environment.argument("count"), environment.argument("nocomment")
if nocomment then
if count then
check = function(line)
n = n + 1
if find(line,"^[%%#]") then
-- skip
elseif find(line,pattern) then
m = m + 1
end
end
else
check = function(line)
n = n + 1
if find(line,"^[%%#]") then
-- skip
elseif find(line,pattern) then
m = m + 1
write_nl(format("%s %6i: %s",name,n,line))
io.flush()
end
end
end
else
if count then
check = function(line)
n = n + 1
if find(line,pattern) then
m = m + 1
end
end
else
check = function(line)
n = n + 1
if find(line,pattern) then
m = m + 1
write_nl(format("%s %6i: %s",name,n,line))
io.flush()
end
end
end
end
local capture = (content/check)^0
for i=offset or 1, #files do
local globbed = dir.glob(files[i])
for i=1,#globbed do
local nam = globbed[i]
name = nam
local data = io.loaddata(name)
if data then
n, m, noffiles = 0, 0, noffiles + 1
capture:match(data)
if count and m > 0 then
nofmatches = nofmatches + m
nofmatchedfiles = nofmatchedfiles + 1
write_nl(format("%s: %s",name,m))
io.flush()
end
end
end
end
statistics.stoptiming(scripts.grep)
if count and nofmatches > 0 then
write_nl(format("\nfiles: %s, matches: %s, matched files: %s, runtime: %0.3f seconds",noffiles,nofmatches,nofmatchedfiles,statistics.elapsedtime(scripts.grep)))
end
end
end
messages.help = [[
--pattern search for pattern (optional)
--count count matches only
--nocomment skip lines that start with %% or #
patterns are lua patterns and need to be escaped accordingly
]]
local pattern = environment.argument("pattern")
local files = environment.files and #environment.files > 0 and environment.files
if pattern and files then
scripts.grep.find(pattern, files)
elseif files then
scripts.grep.find(files[1], files, 2)
else
logs.help(messages.help)
end
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