diff options
Diffstat (limited to 'tex/context/base/file-lib.lua')
| -rw-r--r-- | tex/context/base/file-lib.lua | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/tex/context/base/file-lib.lua b/tex/context/base/file-lib.lua new file mode 100644 index 000000000..03ae0dfb7 --- /dev/null +++ b/tex/context/base/file-lib.lua @@ -0,0 +1,58 @@ +if not modules then modules = { } end modules ['file-lib'] = { + version = 1.001, + comment = "companion to file-lib.mkvi", + author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright = "PRAGMA ADE / ConTeXt Development Team", + license = "see context related readme files" +} + +local format = string.format + +local trace_files = false trackers.register("resolvers.readfile", function(v) trace_files = v end) +local report_files = logs.reporter("files","readfile") + +local loaded = { } +local defaultpatterns = { "%s" } + +local function defaultaction(name,foundname) + report_files("asked name: '%s', found name: '%s'",name,foundname) +end + +local function defaultfailure(name) + report_files("asked name: '%s', not found",name) +end + +function commands.uselibrary(specification) -- todo; reporter + local name = specification.name + if name and name ~= "" then + local patterns = specification.patterns or defaultpatterns + local action = specification.action or defaultaction + local failure = specification.failure or defaultfailure + local onlyonce = specification.onlyonce + local files = utilities.parsers.settings_to_array(name) + local done = false + for i=1,#files do + local filename = files[i] + if not loaded[filename] then + if onlyonce then + loaded[filename] = true -- todo: base this on return value + end + for i=1,#patterns do + local somename = format(patterns[i],filename) + local foundname = resolvers.getreadfilename("any",".",somename) or "" + if foundname ~= "" then + action(name,foundname) + done = true + break + end + end + if done then + break + end + end + end + if failure and not done then + failure(name) + end + end +end |