Update filename regex

HTAN.model.csv

@@ -5,7 +5,7 @@ Sequencing,Module for next generation sequencing assays,,,,FALSE,Assay,,,
 Component,"Category of metadata (e.g. Diagnosis, Biospecimen, scRNA-seq Level 1, etc.); provide the same one for all items/rows.",,,,TRUE,,,https://w3id.org/biolink/vocab/category,
 Patient,HTAN patient,,"Component, HTAN Participant ID",,FALSE,Individual Organism,"Demographics, Family History, Exposure, Follow Up, Diagnosis, Therapy, Molecular Test",,
 File,A type of Information Content Entity specific to OS,,,,FALSE,Information Content Entity,,https://w3id.org/biolink/vocab/DataFile,
-Filename,Name of a file,,,,TRUE,,,,regex search ^.+\/\S*$
+Filename,Name of a file,,,,TRUE,,,,regex search ^(([a-zA-Z0-9\_\-\.\+\(\'\)\ ]+/)[a-zA-Z0-9\_\-\.\+\(\'\)]+)$
 File Format,"Format of a file (e.g. txt, csv, fastq, bam, etc.)","hdf5, bedgraph, idx, idat, bam, bai, excel, powerpoint, tif, tiff, OME-TIFF, png, doc, pdf, fasta, fastq, sam, vcf, bcf, maf, bed, chp, cel, sif, tsv, csv, txt, plink, bigwig, wiggle, gct, bgzip, zip, seg, html, mov, hyperlink, svs, md, flagstat, gtf, raw, msf, rmd, bed narrowPeak, bed broadPeak, bed gappedPeak, avi, pzfx, fig, xml, tar, R script, abf, bpm, dat, jpg, locs, Sentrix descriptor file, Python script, sav, gzip, sdf, RData, hic, ab1, 7z, gff3, json, sqlite, svg, sra, recal, tranches, mtx, tagAlign, dup, DICOM, czi, mex, cloupe, am, cell am, mpg, m, mzML,scn, dcc, rcc, pkc",,,TRUE,,,,
 Checksum,MD5 checksum of the BAM file,,,,TRUE,Information Content Entity,,,
 HTAN Data File ID,Self-identifier for this data file - HTAN ID of this file HTAN ID SOP (eg HTANx_yyy_zzz),,,,TRUE,File,,https://docs.google.com/document/d/1podtPP8L1UNvVxx9_c_szlDcU1f8n7bige6XA_GoRVM/edit?usp=sharing,