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enh(haskell) Restucture Haskell number parsing
Restructured Haskell's number parsing, taking a cue from Swift's implementation. As a happy coincidence, this patch adds support for Haskell's `HexFloatLiterals` language extension.
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,3 +1,109 @@ | ||
<span class="hljs-number">0b001_001</span> | ||
<span class="hljs-number">0x000_0FF</span> | ||
<span class="hljs-number">132_15</span> | ||
<span class="hljs-comment">-- decimal</span> | ||
<span class="hljs-title">million</span> = <span class="hljs-number">1_000_000</span> | ||
<span class="hljs-title">billion</span> = <span class="hljs-number">1_000_000_000</span> | ||
<span class="hljs-title">lightspeed</span> = <span class="hljs-number">299_792_458</span> | ||
<span class="hljs-title">version</span> = <span class="hljs-number">8_04_1</span> | ||
<span class="hljs-title">date</span> = <span class="hljs-number">2017_12_31</span> | ||
<span class="hljs-title">the_answer</span> = <span class="hljs-number">42</span> | ||
|
||
<span class="hljs-comment">-- hexadecimal</span> | ||
<span class="hljs-title">red_mask</span> = <span class="hljs-number">0xff_00_00</span> | ||
<span class="hljs-title">size1G</span> = <span class="hljs-number">0x3fff_fffg</span> | ||
|
||
<span class="hljs-comment">-- binary</span> | ||
<span class="hljs-title">bit8th</span> = <span class="hljs-number">0b01_0000_0000</span> | ||
<span class="hljs-title">packbits</span> = <span class="hljs-number">0b1_11_01_0000_0_111</span> | ||
<span class="hljs-title">bigbits</span> = <span class="hljs-number">0b1100_1011__1110_1111__0101_0011</span> | ||
|
||
<span class="hljs-comment">-- float</span> | ||
<span class="hljs-title">pi</span> = <span class="hljs-number">3.141_592_653_589_793</span> | ||
<span class="hljs-title">faraday</span> = <span class="hljs-number">96_485.332_89</span> | ||
<span class="hljs-title">avogadro</span> = <span class="hljs-number">6.022_140_857e+23</span> | ||
|
||
<span class="hljs-title">x0</span> = <span class="hljs-number">1_000_000</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">x1</span> = <span class="hljs-number">1__000000</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">x2</span> = <span class="hljs-number">1000000_</span> <span class="hljs-comment">-- invalid</span> | ||
<span class="hljs-title">x3</span> = _1000000 <span class="hljs-comment">-- invalid</span> | ||
|
||
<span class="hljs-title">e0</span> = <span class="hljs-number">0.0001</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">e1</span> = <span class="hljs-number">0.000_1</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">e2</span> = <span class="hljs-number">0_.0001</span> <span class="hljs-comment">-- invalid</span> | ||
<span class="hljs-title">e3</span> = _0.<span class="hljs-number">0001</span> <span class="hljs-comment">-- invalid</span> | ||
<span class="hljs-title">e4</span> = <span class="hljs-number">0</span>._0001 <span class="hljs-comment">-- invalid</span> | ||
<span class="hljs-title">e5</span> = <span class="hljs-number">0.0001_</span> <span class="hljs-comment">-- invalid</span> | ||
|
||
<span class="hljs-title">f0</span> = <span class="hljs-number">1e+23</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">f1</span> = <span class="hljs-number">1_e+23</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">f2</span> = <span class="hljs-number">1__e+23</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">f3</span> = 1e_+<span class="hljs-number">23</span> <span class="hljs-comment">-- invalid</span> | ||
|
||
<span class="hljs-title">g0</span> = <span class="hljs-number">1e+23</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">g1</span> = 1e+_23 <span class="hljs-comment">-- invalid</span> | ||
<span class="hljs-title">g2</span> = <span class="hljs-number">1e+23_</span> <span class="hljs-comment">-- invalid</span> | ||
|
||
<span class="hljs-title">h0</span> = <span class="hljs-number">0xffff</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">h1</span> = <span class="hljs-number">0xff_ff</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">h2</span> = <span class="hljs-number">0x_ffff</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">h3</span> = <span class="hljs-number">0x__ffff</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">h4</span> = _0xffff <span class="hljs-comment">-- invalid</span> | ||
|
||
<span class="hljs-comment">-- decimal</span> | ||
<span class="hljs-title">million</span> = <span class="hljs-number">1_000_000</span> | ||
<span class="hljs-title">billion</span> = <span class="hljs-number">1_000_000_000</span> | ||
<span class="hljs-title">lightspeed</span> = <span class="hljs-number">299_792_458</span> | ||
<span class="hljs-title">version</span> = <span class="hljs-number">8_04_1</span> | ||
<span class="hljs-title">date</span> = <span class="hljs-number">2017_12_31</span> | ||
|
||
<span class="hljs-comment">-- hexadecimal</span> | ||
<span class="hljs-title">red_mask</span> = <span class="hljs-number">0xff_00_00</span> | ||
<span class="hljs-title">size1G</span> = <span class="hljs-number">0x3fff_fffg</span> | ||
|
||
<span class="hljs-comment">-- binary</span> | ||
<span class="hljs-title">bit8th</span> = <span class="hljs-number">0b01_0000_0000</span> | ||
<span class="hljs-title">packbits</span> = <span class="hljs-number">0b1_11_01_0000_0_111</span> | ||
<span class="hljs-title">bigbits</span> = <span class="hljs-number">0b1100_1011__1110_1111__0101_0011</span> | ||
|
||
<span class="hljs-comment">-- float</span> | ||
<span class="hljs-title">pi</span> = <span class="hljs-number">3.141_592_653_589_793</span> | ||
<span class="hljs-title">faraday</span> = <span class="hljs-number">96_485.332_89</span> | ||
<span class="hljs-title">avogadro</span> = <span class="hljs-number">6.022_140_857e+23</span> | ||
|
||
<span class="hljs-title">x0</span> = <span class="hljs-number">1_000_000</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">x1</span> = <span class="hljs-number">1__000000</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">x2</span> = <span class="hljs-number">1000000_</span> <span class="hljs-comment">-- invalid</span> | ||
<span class="hljs-title">x3</span> = _1000000 <span class="hljs-comment">-- invalid</span> | ||
|
||
<span class="hljs-title">e0</span> = <span class="hljs-number">0.0001</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">e1</span> = <span class="hljs-number">0.000_1</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">e2</span> = <span class="hljs-number">0_.0001</span> <span class="hljs-comment">-- invalid</span> | ||
<span class="hljs-title">e3</span> = _0.<span class="hljs-number">0001</span> <span class="hljs-comment">-- invalid</span> | ||
<span class="hljs-title">e4</span> = <span class="hljs-number">0</span>._0001 <span class="hljs-comment">-- invalid</span> | ||
<span class="hljs-title">e5</span> = <span class="hljs-number">0.0001_</span> <span class="hljs-comment">-- invalid</span> | ||
|
||
<span class="hljs-title">f0</span> = <span class="hljs-number">1e+23</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">f1</span> = <span class="hljs-number">1_e+23</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">f2</span> = <span class="hljs-number">1__e+23</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">f3</span> = 1e_+<span class="hljs-number">23</span> <span class="hljs-comment">-- invalid</span> | ||
|
||
<span class="hljs-title">g0</span> = <span class="hljs-number">1e+23</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">g1</span> = 1e+_23 <span class="hljs-comment">-- invalid</span> | ||
<span class="hljs-title">g2</span> = <span class="hljs-number">1e+23_</span> <span class="hljs-comment">-- invalid</span> | ||
|
||
<span class="hljs-title">h0</span> = <span class="hljs-number">0xffff</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">h1</span> = <span class="hljs-number">0xff_ff</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">h2</span> = <span class="hljs-number">0x_ffff</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">h3</span> = <span class="hljs-number">0x__ffff</span> <span class="hljs-comment">-- valid</span> | ||
<span class="hljs-title">h4</span> = _0xffff <span class="hljs-comment">-- invalid</span> | ||
|
||
<span class="hljs-comment">-- hex float</span> | ||
<span class="hljs-title">hf0</span> = <span class="hljs-number">0x0.1</span> | ||
<span class="hljs-title">hf1</span> = <span class="hljs-number">0x0.01</span> | ||
<span class="hljs-title">hf2</span> = <span class="hljs-number">0xF.FF</span> | ||
<span class="hljs-title">hf3</span> = <span class="hljs-number">0x0.1p41</span> | ||
<span class="hljs-title">hf4</span> = <span class="hljs-number">0x0.1p-4</span> | ||
<span class="hljs-title">hf5</span> = <span class="hljs-number">0x0.1p12</span> | ||
|
||
<span class="hljs-comment">-- negative numbers</span> | ||
<span class="hljs-title">n0</span> = <span class="hljs-number">-1</span> | ||
<span class="hljs-title">n0</span> = <span class="hljs-number">-1.0</span> | ||
<span class="hljs-title">n0</span> = <span class="hljs-number">-0xFF0</span> |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,3 +1,111 @@ | ||
0b001_001 | ||
0x000_0FF | ||
132_15 | ||
-- decimal | ||
million = 1_000_000 | ||
billion = 1_000_000_000 | ||
lightspeed = 299_792_458 | ||
version = 8_04_1 | ||
date = 2017_12_31 | ||
the_answer = 42 | ||
|
||
-- hexadecimal | ||
red_mask = 0xff_00_00 | ||
size1G = 0x3fff_fffg | ||
|
||
-- binary | ||
bit8th = 0b01_0000_0000 | ||
packbits = 0b1_11_01_0000_0_111 | ||
bigbits = 0b1100_1011__1110_1111__0101_0011 | ||
|
||
-- float | ||
pi = 3.141_592_653_589_793 | ||
faraday = 96_485.332_89 | ||
avogadro = 6.022_140_857e+23 | ||
|
||
x0 = 1_000_000 -- valid | ||
x1 = 1__000000 -- valid | ||
x2 = 1000000_ -- invalid | ||
x3 = _1000000 -- invalid | ||
|
||
e0 = 0.0001 -- valid | ||
e1 = 0.000_1 -- valid | ||
e2 = 0_.0001 -- invalid | ||
e3 = _0.0001 -- invalid | ||
e4 = 0._0001 -- invalid | ||
e5 = 0.0001_ -- invalid | ||
|
||
f0 = 1e+23 -- valid | ||
f1 = 1_e+23 -- valid | ||
f2 = 1__e+23 -- valid | ||
f3 = 1e_+23 -- invalid | ||
|
||
g0 = 1e+23 -- valid | ||
g1 = 1e+_23 -- invalid | ||
g2 = 1e+23_ -- invalid | ||
|
||
h0 = 0xffff -- valid | ||
h1 = 0xff_ff -- valid | ||
h2 = 0x_ffff -- valid | ||
h3 = 0x__ffff -- valid | ||
h4 = _0xffff -- invalid | ||
|
||
-- decimal | ||
million = 1_000_000 | ||
billion = 1_000_000_000 | ||
lightspeed = 299_792_458 | ||
version = 8_04_1 | ||
date = 2017_12_31 | ||
|
||
-- hexadecimal | ||
red_mask = 0xff_00_00 | ||
size1G = 0x3fff_fffg | ||
|
||
-- binary | ||
bit8th = 0b01_0000_0000 | ||
packbits = 0b1_11_01_0000_0_111 | ||
bigbits = 0b1100_1011__1110_1111__0101_0011 | ||
|
||
-- float | ||
pi = 3.141_592_653_589_793 | ||
faraday = 96_485.332_89 | ||
avogadro = 6.022_140_857e+23 | ||
|
||
x0 = 1_000_000 -- valid | ||
x1 = 1__000000 -- valid | ||
x2 = 1000000_ -- invalid | ||
x3 = _1000000 -- invalid | ||
|
||
e0 = 0.0001 -- valid | ||
e1 = 0.000_1 -- valid | ||
e2 = 0_.0001 -- invalid | ||
e3 = _0.0001 -- invalid | ||
e4 = 0._0001 -- invalid | ||
e5 = 0.0001_ -- invalid | ||
|
||
f0 = 1e+23 -- valid | ||
f1 = 1_e+23 -- valid | ||
f2 = 1__e+23 -- valid | ||
f3 = 1e_+23 -- invalid | ||
|
||
g0 = 1e+23 -- valid | ||
g1 = 1e+_23 -- invalid | ||
g2 = 1e+23_ -- invalid | ||
|
||
h0 = 0xffff -- valid | ||
h1 = 0xff_ff -- valid | ||
h2 = 0x_ffff -- valid | ||
h3 = 0x__ffff -- valid | ||
h4 = _0xffff -- invalid | ||
|
||
-- hex float | ||
hf0 = 0x0.1 | ||
hf1 = 0x0.01 | ||
hf2 = 0xF.FF | ||
hf3 = 0x0.1p41 | ||
hf4 = 0x0.1p-4 | ||
hf5 = 0x0.1p12 | ||
|
||
-- negative numbers | ||
n0 = -1 | ||
n0 = -1.0 | ||
n0 = -0xFF0 | ||
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||
a - b |