D:\>perl -ne "if (m/^[[:xdigit:]]{4,} - [[:xdigit:]]{4,}/) { s/ - /../; s/ : /; /; print }" unichist.pl > unichist_Blocks.txt

D:\>web get http://unicode.org/Public/UNIDATA/Blocks.txt | perl -ne "print if m/^[[:xdigit:]]{4,}\.\.[[:xdigit:]]{4,}/" > UNIDATA_Blocks.txt

D:\>wc -l unichist_Blocks.txt UNIDATA_Blocks.txt
    149    unichist_Blocks.txt
    197    UNIDATA_Blocks.txt
    346    total

D:\>diff unichist_Blocks.txt UNIDATA_Blocks.txt
1,4c1,4
< 0000..007F; Basic Latin ASCII
< 0080..00FF; Latin-1
< 0100..017F; Latin Extended A
< 0180..024F; Latin Extended B
---
> 0000..007F; Basic Latin
> 0080..00FF; Latin-1 Supplement
> 0100..017F; Latin Extended-A
> 0180..024F; Latin Extended-B
8c8
< 0370..03FF; Greek
---
> 0370..03FF; Greek and Coptic
17c17,18
< 07C0..07FF; N'Ko
---
> 07C0..07FF; NKo
> 0800..083F; Samaritan
21c22
< 0A80..0A8F; Gujarati
---
> 0A80..0AFF; Gujarati
37c38
< 1400..167F; Canadian Syllabics
---
> 1400..167F; Unified Canadian Aboriginal Syllabics
45c46,47
< 1800..18FF; Mongolian
---
> 1800..18AF; Mongolian
> 18B0..18FF; Unified Canadian Aboriginal Syllabics Extended
50c52,53
< 1A00..1AFF; Buginese
---
> 1A00..1A1F; Buginese
> 1A20..1AAF; Tai Tham
51a55,58
> 1B80..1BBF; Sundanese
> 1C00..1C4F; Lepcha
> 1C50..1C7F; Ol Chiki
> 1CD0..1CFF; Vedic Extensions
74,75c81,82
< 27C0..27EF; Miscellaneous Mathematical Symbols A
< 27F0..27FF; Supplemental Arrows A
---
> 27C0..27EF; Miscellaneous Mathematical Symbols-A
> 27F0..27FF; Supplemental Arrows-A
77,78c84,85
< 2900..297F; Supplemental Arrows B
< 2980..29FF; Miscellaneous Mathematical Symbols B
---
> 2900..297F; Supplemental Arrows-B
> 2980..29FF; Miscellaneous Mathematical Symbols-B
82c89
< 2C60..2C7F; Latin Extended C
---
> 2C60..2C7F; Latin Extended-C
86a94
> 2DE0..2DFF; Cyrillic Extended-A
104c112
< 4E00..9FBF; CJK Unified Ideographs
---
> 4E00..9FFF; CJK Unified Ideographs
106a115,118
> A4D0..A4FF; Lisu
> A500..A63F; Vai
> A640..A69F; Cyrillic Extended-B
> A6A0..A6FF; Bamum
108c120
< A720..A7FF; Latin Extended D
---
> A720..A7FF; Latin Extended-D
110c122,133
< A840..A87F; Phags-Pa
---
> A830..A83F; Common Indic Number Forms
> A840..A87F; Phags-pa
> A880..A8DF; Saurashtra
> A8E0..A8FF; Devanagari Extended
> A900..A92F; Kayah Li
> A930..A95F; Rejang
> A960..A97F; Hangul Jamo Extended-A
> A980..A9DF; Javanese
> AA00..AA5F; Cham
> AA60..AA7F; Myanmar Extended-A
> AA80..AADF; Tai Viet
> ABC0..ABFF; Meetei Mayek
112,113c135,138
< D800..D8FF; High Surrogate Area
< DC00..DFFF; Low Surrogate Area
---
> D7B0..D7FF; Hangul Jamo Extended-B
> D800..DB7F; High Surrogates
> DB80..DBFF; High Private Use Surrogates
> DC00..DFFF; Low Surrogates
117c142
< FB50..FDFF; Arabic Presentation Forms A
---
> FB50..FDFF; Arabic Presentation Forms-A
123c148
< FE70..FEFF; Arabic Presentation Forms B
---
> FE70..FEFF; Arabic Presentation Forms-B
129a155,158
> 10190..101CF; Ancient Symbols
> 101D0..101FF; Phaistos Disc
> 10280..1029F; Lycian
> 102A0..102DF; Carian
137a167
> 10840..1085F; Imperial Aramaic
138a169
> 10920..1093F; Lydian
139a171,177
> 10A60..10A7F; Old South Arabian
> 10B00..10B3F; Avestan
> 10B40..10B5F; Inscriptional Parthian
> 10B60..10B7F; Inscriptional Pahlavi
> 10C00..10C4F; Old Turkic
> 10E60..10E7F; Rumi Numeral Symbols
> 11080..110CF; Kaithi
141a180
> 13000..1342F; Egyptian Hieroglyphs
144c183
< 1D200..1D24F; Ancient Greek Musical
---
> 1D200..1D24F; Ancient Greek Musical Notation
147a187,190
> 1F000..1F02F; Mahjong Tiles
> 1F030..1F09F; Domino Tiles
> 1F100..1F1FF; Enclosed Alphanumeric Supplement
> 1F200..1F2FF; Enclosed Ideographic Supplement
148a192
> 2A700..2B73F; CJK Unified Ideographs Extension C
149a194,197
> E0000..E007F; Tags
> E0100..E01EF; Variation Selectors Supplement
> F0000..FFFFF; Supplementary Private Use Area-A
> 100000..10FFFF; Supplementary Private Use Area-B

D:\>egrep "Egyptian Hieroglyphs|Mahjong|Domino" unichist_Blocks.txt

D:\>