ruby - How to convert data in a file to a nested hash or an array of hashes -

-

i have file in following format. have 100 records starting record 1 in file. here few records file:

record 1:  [record      acct_num      "11111111"     trxn_dt       "20140822"      post_dt       "20140822"     trxn_amt      "33.4"     trxn_cat      "rci"     trxn_cat_desc "abcd"]  record 2:  [record     acct_num      "44444444"     trxn_dt       "20140819"     post_dt       "20140822"     trxn_amt      "183.75"     trxn_cat      "aci"     trxn_cat_desc "defg"]

i want convert data in file nested hash or array of hashes can perform assertions. want nested hash like:

{   {     acct_num => "11111111",     trxn_dt => "20140822",     post_dt => "20140822",     trxn_amt => "33.4",     trxn_cat => "rci",     trxn_cat_desc => "abcd"   },   {     acct_num => "44444444",     trxn_dt => "20140819",     post_dt => "20140822",     trxn_amt => "183.75",     trxn_cat => "aci",     trxn_cat_desc => "defg"   } }

any pointers helpful.

my bad. didn't upload code have tried. letting me know. i'm new ruby , have tried far: 

temp_file_output = file.open('file.txt', 'r')                                                        temp_file_output.readlines.each |line|                                                      if line.match(/record/)                                                                               new_line = line.next                                                  key, value = new_line.chomp.split(/"/)           file_read_hash[key] = value       end     end

ok today tried revisit code , made below changes.i able write first element hash. still figuring out on how include remaining elements hash. pointers/suggestions? here's code:

file_read_hash = {}      temp_file_output = file.open('sample.txt', 'r')      while !temp_file_output.eof?         line = temp_file_output.readline         if line.include?("record")           new_line = temp_file_output.readline.next             key,value = new_line.chomp.split(/"/)             file_read_hash[key.strip] = value             break if line.include?("]")           end         end      puts file_read_hash

output: {"rtr_acct_num"=>"44444444"}

file_read_hash = {}      file_read_hash_collect = {}      @file_read_array = []       file.foreach('sample.txt') |line|       next if line.include?("record") or line.empty?        next if line.include?("[record")         key,value = line.chomp.split(/"/)         key = key.to_s.strip         value = value.to_s.strip         file_read_hash[key] = value       file_read_hash_collect = file_read_hash.delete_if{|k,v|k.blank? ,  v.blank?}     if line.include?("]")         @file_read_array.push(file_read_hash_collect)         file_read_hash = {}         file_read_hash_collect = {}   end end puts @file_read_array

Comments

Post a Comment

Popular posts from this blog

python - Healpy: From Data to Healpix map -

-
Image
i have data grid rows represent theta (0, pi) , columns represent phi (0, 2*pi) , f(theta,phi) density of dark matter @ location. wanted calculate power spectrum , have decided use healpy. what can not understand how format data healpy use. if provide code (in python obvious reasons) or point me tutorial, great! have tried hand @ doing following code: #grid dimensions nrows*ncols (subject change) theta = np.linspace(0, np.pi, num=grid.shape[0])[:, none] phi = np.linspace(0, 2*np.pi, num=grid.shape[1]) nside = 512 print "pixel area: %.2f square degrees" % hp.nside2pixarea(nside, degrees=true) pix = hp.ang2pix(nside, theta, phi) healpix_map = np.zeros(hp.nside2npix(nside), dtype=np.double) healpix_map[pix] = grid but, when try execute code power spectrum. specifically, : cl = hp.anafast(healpix_map[pix], lmax=1024) i error: typeerror: bad number of pixels if point me tutorial or edit code great. more specifications: data in 2d np array , can change numrows/...
Read more

c - Bitwise operation with (signed) enum value -

-
i using enumerator values flags: typedef enum { = 0x00, b = 0x01u, // u has no influence, expected c = 0x02u, // u has no influence, expected ... } enum_name; volatile unsigned char* reg = someaddress; *reg |= b; according misra-c:2004 bitwise operations shall not done signed type. unfortunately, compiler iar use signed int (or short or char) underlying type of enums, , option can find relates size, not signedness ("--enum-is-int"). according iar c/c++ development guide arm , pages 169 , 211, can define type of enum s if enable iar language extensions ( -e command-line option, or project > options > c/c++ compiler > language > allow iar extensions in ide). in particular, should define "sentinel" value, make sure compiler chooses correct type. prefers signed types, , uses smallest possible integer type, sentinel should largest positive integer corresponding unsigned integer type can describe. example, typedef enum ...
Read more

xslt - Unnest parent nodes by child node -

-
in xml there items 0-n attributes , item should copied each attribute new item 1 attribute. given xml this: <?xml version="1.0" encoding="utf-8" ?> <items> <item> <name>a</name> <attributes> <attribute> <key>attribute1</key> <value>1</value> </attribute> </attributes> </item> <item> <name>b</name> </item> <item> <name>c</name> <attributes> <attribute> <key>attribute1</key> <value>5</value> </attribute> <attribute> <key>attribute2</key> <value>2</value> </attribute> <attribute> <key>attri...
Read more