| #!/usr/bin/env python |
| |
| import os, sys, codecs, re |
| |
| def usage(): |
| print "Usage info for extract_references.py" |
| print " extract_references.py ref_sgml ref_prefix" |
| |
| print |
| sys.exit() |
| |
| def main(): |
| if (len(sys.argv) < 3 or sys.argv[1] == "-h"): |
| usage() |
| |
| sgml = codecs.open(sys.argv[1], "r", "utf-8") |
| prefix = sys.argv[2] |
| |
| doc_pattern = re.compile('.* docid="([^"]*).*"') |
| seg_pattern = re.compile('.* id="([^"]*)".*') |
| |
| ref_sets = [] |
| cur_ref_set = [] |
| |
| cur_doc = "" |
| cur_seg = "" |
| cur_txt = "" |
| |
| for line in sgml.readlines(): |
| line_tc = line.strip() |
| line = line_tc.lower() |
| if ("<doc " in line): |
| cur_doc = doc_pattern.search(line).groups()[0] |
| |
| if ("</refset " in line or |
| ("<doc " in line and cur_doc in map(lambda x: x[0], cur_ref_set))): |
| ref_sets.append(cur_ref_set) |
| cur_ref_set = [] |
| |
| if ("<seg " in line): |
| cur_seg = seg_pattern.search(line).groups()[0] |
| cur_txt = re.sub("<[^>]*>", "", line_tc) |
| cur_ref_set.append((cur_doc, cur_seg, cur_txt)) |
| |
| ref_files = [] |
| ref_count = len(ref_sets[0]) |
| for i, ref_set in enumerate(ref_sets): |
| if (ref_count != len(ref_set)): |
| print "[ERR] reference lengths do not match: " + str(ref_count) \ |
| + " vs. " + str(len(ref_set)) + " (ref " + str(i) + ")" |
| ref_files.append(codecs.open(prefix + "_ref." + str(i), "w", "utf-8")) |
| |
| for j in range(ref_count): |
| (cur_doc, cur_seg, cur_txt) = ref_sets[0][j] |
| for i in range(len(ref_sets)): |
| if (j >= len(ref_sets[i])): |
| continue |
| (doc, seg, txt) = ref_sets[i][j] |
| if (doc != cur_doc or seg != cur_seg): |
| print "[ERR] document, segment ids don't match up: " |
| print "\t" + doc + " vs. " + cur_doc |
| print "\t" + seg + " vs. " + cur_seg |
| ref_files[i].write(txt + "\n") |
| |
| for ref_file in ref_files: |
| ref_file.close() |
| |
| |
| if __name__ == "__main__": |
| main() |