気づいたら朝じゃないか！やべ〜寝よっと。 ほぼ完成か？
マイナスの符号を忘れてた。
仕事までに時間があるので符号付きにも対応した。あとはバグ取り。
これで input 要素の value 値に、3桁カンマとか単位が入り込んでいても気兼ねなく PHP に渡すことができる。
ほぼ同じ正規表現が使い回せるので OK!
ついでに教えてgoo に質問した。
https://oshiete.goo.ne.jp/qa/10451407.html
きっと逃げのお言葉を聞けると思って^^;
しばらく要素を見ようっと。では仕事！仕事！
<!DOCTYPE html>
<html lang="ja">
<meta charset="UTF-8">
<title>数値文字列から数値部分を配列にして抜き取る</title>
<style>
table { width:100%; }
caption {
font: normal small monospace;
text-align: left;
}
tr.red {
background: #f88;
}
td {
text-align:right;
}
</style>
<body>
<table border=1></table>
<script>
let ary = [
'', // => null
'0', // => [,,,,0,]
'1', // => [,,,,1,]
'12', // => [,,,,12,]
'123', // => [,,,,123,]
'1,234', // => [,,,1,234,]
'12,345', // => [,,,12,345,]
'123,456', // => [,,,123,456,]
'12,34', // => null
'123,45', // => null
'123,456,789', // => [,,123,456,789,]
'123,123,456,789', // => [,123,123,456,789,]
'123123123456789', // => [123,123,123,456,789,]
'123円', // => [,,,,123,]
'1,234 円', // => [,,,1,234,]
'1,234,567 円', // => [,,1,234,567,]
'123.00', // => [,,,,123,00]
'12345.00123', // => [,,,12,345,00123]
'$ 1234', // => [,,,1,234,]
'$ 1,234,567.', // => [,,1,234,567,]
'0.0001', // => [,,,,0,0001]
'.123', // => [,,,,,123]
'', // => null
'-0', // => [,,,,0,]
'-1', // => [,,,,1,]
'-12', // => [,,,,12,]
'-123', // => [,,,,123,]
'-1,234', // => [,,,1,234,]
'+12,345', // => [,,,12,345,]
'-123,456', // => [,,,123,456,]
'-12,34', // => null
'-123,45', // => null
'-123,456,789', // => [,,123,456,789,]
'-123,123,456,789', // => [,123,123,456,789,]
'-123123123456789', // => [123,123,123,456,789,]
'-123円', // => [,,,,123,]
'-1,234 円', // => [,,,1,234,]
'-1,234,567 円', // => [,,1,234,567,]
'-123.00', // => [,,,,123,00]
'-12345.00123', // => [,,,12,345,00123]
'$ -1234', // => [,,,1,234,]
'$ -1,234,567.', // => [,,1,234,567,]
'0.0001', // => [,,,,0,0001]
'.123', // => [,,,,,123]
];
let
notNull = '(?!^$)',
head_digit = '[1-9][0-9]{0,2}',
after_digit = '[0-9]{3}',
word = '\\s*[^0-9\\.\\,\\-]*\\s*',
word_last = '\\s*[^0-9\\.\\,]*\\s*',
comma = '\\,',
point = '\\.',
decimal = '[0-9]{0,}',
OR = '|';
let
assumption = comma + '?' + after_digit,
number_part = '(' + head_digit + OR + after_digit + ')' + comma + '?',
decimal_ = '(?:' + point + '(' + decimal + '))?',
sign = '(?:\\+|(\\-))?';
let
base = '(?:(' + '^0' + OR + '' + head_digit + OR + after_digit + ')?' + decimal_ + ')',
kiro = '(?:' + number_part + '(?=' + after_digit + '))?',
mega = '(?:' + number_part + '(?=' + after_digit + assumption + '))?',
giga = '(?:' + number_part + '(?=' + after_digit + assumption + assumption + '))?',
tera = '(?:' + number_part + '(?=' + after_digit + assumption + assumption + assumption + '))?';
let
reg = new RegExp ( '^' + notNull + word + sign + tera + giga + mega + kiro + base + word_last + '$');
//__________________________________
let table = document.querySelector ('table');
table.createCaption ().textContent = reg;
for (let a of ary) {
let
tr = table.insertRow (-1),
r = reg.exec(a);
r
? (r.splice (0, 0, 'o'), tr.className = 'red')
: r = ['x', a,,,,,,,,];
for (let c of r)
tr.insertCell(-1).textContent = c;
}
</script>
