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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"
}
-- If needed this one can be optimized for speed as well as use some existing
-- helpers. We can quit faster on max, and probably use lpeg instead of find.
local helpinfo = [[
<?xml version="1.0"?>
<application>
<metadata>
<entry name="name">mtx-grep</entry>
<entry name="detail">Simple Grepper</entry>
<entry name="version">0.10</entry>
</metadata>
<flags>
<category name="basic">
<subcategory>
<flag name="pattern"><short>search for pattern (optional)</short></flag>
<flag name="count"><short>count matches only</short></flag>
<flag name="nocomment"><short>skip lines that start with %% or #</short></flag>
<flag name="n"><short>show at most n matches</short></flag>
<flag name="first"><short>only show first match</short></flag>
<flag name="match"><short>return the match (if it is one)</short></flag>
<flag name="xml"><short>pattern is lpath expression</short></flag>
</subcategory>
</category>
</flags>
<examples>
<category>
<title>Examples</title>
<subcategory>
<example><command>mtxrun --script grep --pattern=module *.mkiv</command></example>
<example><command>mtxrun --script grep --pattern="modules.-%['(.-)'%]" char-*.lua --first</command></example>
<example><command>mtxrun --script grep --pattern=module --count *.mkiv</command></example>
<example><command>mtxrun --script grep --pattern=module --first *.mkiv</command></example>
<example><command>mtxrun --script grep --pattern=module --nocomment *.mkiv</command></example>
<example><command>mtxrun --script grep --pattern=module --n=10 *.mkiv</command></example>
</subcategory>
</category>
</examples>
<comments>
<comment>patterns are lua patterns and need to be escaped accordingly</comment>
</comments>
</application>
]]
local application = logs.application {
name = "mtx-grep",
banner = "Simple Grepper 0.10",
helpinfo = helpinfo,
}
local report = application.report
scripts = scripts or { }
scripts.grep = scripts.grep or { }
local find, match, format = string.find, string.match, string.format
local lpegmatch = lpeg.match
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 + lpeg.C(lpeg.P(1)^1)
local write_nl = (logs and logs.writer) or (texio and texio.write_nl) or print
-- local pattern = "LIJST[@TYPE='BULLET']/LIJSTITEM[contains(text(),'Kern')]"
-- 'Cc%(\\\"\\\"%)'
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, check = 0, 0, nil
local name = ""
local count = environment.argument("count")
local nocomment = environment.argument("nocomment")
local max = tonumber(environment.argument("n")) or (environment.argument("first") and 1) or false
local domatch = environment.argument("match")
if environment.argument("xml") then
for i=offset or 1, #files do
local globbed = dir.glob(files[i])
for i=1,#globbed do
name = globbed[i]
local data = xml.load(name)
if data and not data.error then
n, m, noffiles = 0, 0, noffiles + 1
if count then
for c in xml.collected(data,pattern) do
m = m + 1
end
if m > 0 then
nofmatches = nofmatches + m
nofmatchedfiles = nofmatchedfiles + 1
write_nl(format("%5i %s",m,name))
io.flush()
end
else
for c in xml.collected(data,pattern) do
m = m + 1
if not max or m <= max then
write_nl(format("%s: %s",name,xml.tostring(c)))
end
end
end
end
end
end
else
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
if not max or m <= max then
if domatch then
write_nl(match(line,pattern))
else
write_nl(format("%s %6i: %s",name,n,line))
end
io.flush()
end
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
if not max or m <= max then
if domatch then
write_nl(match(line,pattern))
else
write_nl(format("%s %6i: %s",name,n,line))
end
io.flush()
end
end
end
end
end
local capture = (content/check)^0 -- todo: break out when max
for i=offset or 1, #files do
local globbed = dir.glob(files[i])
for i=1,#globbed do
name = globbed[i]
local data = io.loaddata(name)
if data then
n, m, noffiles = 0, 0, noffiles + 1
lpegmatch(capture,data)
if count and m > 0 then
nofmatches = nofmatches + m
nofmatchedfiles = nofmatchedfiles + 1
write_nl(format("%5i %s",m,name))
io.flush()
end
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
local pattern = environment.argument("pattern")
local files = environment.files and #environment.files > 0 and environment.files
if environment.argument("exporthelp") then
application.export(environment.argument("exporthelp"),files[1])
elseif pattern and files then
scripts.grep.find(pattern, files)
elseif files then
scripts.grep.find(files[1], files, 2)
else
application.help()
end
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