Full EXFOR in C4 format.
(Under development)
V.Zerkin, 2007/05/08-2007/05/10

*******************************************************************************
ver1/
    x4index.txt  index of EXFOR data
    c4index.txt  index of C4 data (lines: 55931, dictionary: EXFOR14A.DAT)
    exfor/	 directory with full EXFOR in EXFOR and C4 formats:
		 for every ENTRY one file in sub-directory structure.
		 Naming convension:
		 accession number -> EXFOR file    C4 file
		 12345            -> 123/12345.x4  123/12345.c4
	Total files: 26,917

*******************************************************************************
ver2/
    x4index.txt  index of EXFOR data
    c4index2.txt index of C4 data (lines: 63236, dictionary: EXFOR14A.DAT_ext)
    exfor/	 directory with full EXFOR in EXFOR and C4 formats:
		 one file for group Entries with naming convension:
		 accession number -> EXFOR file    C4 file
		 123*             -> exfor123.x4   exfor123.c4
	Total files: 440

*******************************************************************************
ver3/
    c4index3.txt index of C4 data
    exfor/	 directory with full EXFOR in extended C4 format*:
		 one file for every dataset (SUBENT+Pointer) in sub-directories.
		 Naming convension:
		 accession number -> extended C4 file
		 12345678         -> 123/12345678P.xc   (P - Reaction Pointer)
	Total: files:62,859, size:910Mb

*******************************************************************************
ver4/
    c4index3.txt index of C4 data (same as in ver3\)
    exfor/	 directory with full EXFOR in extended-2 C4 format**:
		 one file for every dataset (SUBENT+Pointer) in sub-directories.
		 Naming convension:
		 accession number -> extended C4 file
		 12345678         -> 123/12345678P.xc   (P - Reaction Pointer)
	Total: files:62,859, size:484Mb (fitts to one CD-ROM)


*******************************************************************************
ver5/
    x4bck.x4.xc4 (size:462Mb, deleted) full EXFOR in extended-2 C4 format**:
		 one file full EXFOR library.

    X4C4-2007-05-15.zip (size:69Mb) contains:
       X4C4-2007-05-15.xc4 (size:871Mb) contains:
          full EXFOR in extended C4 format* sorted by Entry-Subentry-Pointer
    Note. Users can store C4-data in a form they wish, e.g.:
	  a) index file + directory structure sorting data by EXFOR numbers,
	  b) index file + directory structure sorting data by target/reaction,
	  c) ENDF-like directory structure: ZAProjectile/ZAMaterial/MF/MT
	  d) database
	  e) etc. (full freedom)

*******************************************************************************







--------------------------------------------------------------------------------
*Extended C4 format - C4 with identification information,
	given as comment starting with #:
	File consists of 3 parts:
	1) comment: description (reference, title, full list of authors)
	2) C4 lines as is in pure C4 file
	3) comment: ending lines
    ....Software reading C4 update:
	- ingnore lines starting with #


--------------------------------------------------------------------------------
**Extended-2 C4 format - short version of extended C4
	File consists of 3 parts:
	1) comment: description (reference, title, full list of authors)
	2) C4 lines, but cut after column 98 - author's name and SUBENT number
	   - missing information should be taken from the comment lines
	3) comment: ending lines
    ....Software reading C4 update:
	a) use information from comment lines to define Author(year)
	b) ingnore other lines starting with #