regex101: Python Match Workspace

Negative Lookbehind(?<![\u4E00-\u9FAF\u3040-\u3096\u30A1-\u30FA\uFF66-\uFF9D\u31F0-\u31FF])

Character Class[\u4E00-\u9FAF\u3040-\u3096\u30A1-\u30FA\uFF66-\uFF9D\u31F0-\u31FF]

\u4E00-\u9FAFone character from 一 (19968₁₀) to 龯 (40879₁₀)

\u3040-\u3096one character from ぀ (12352₁₀) to ゖ (12438₁₀)

\u30A1-\u30FAone character from ァ (12449₁₀) to ヺ (12538₁₀)

\uFF66-\uFF9Done character from ｦ (65382₁₀) to ﾝ (65437₁₀)

\u31F0-\u31FFone character from ㇰ (12784₁₀) to ㇿ (12799₁₀)

Negative Lookbehind(?<!\d)

\da Unicode decimal digit

Negative Lookbehind(?<!\d\.)

\da Unicode decimal digit

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 1(\d+(?:\.\d+)?m2)

\d+a Unicode decimal digit, repeated at least once

Non-Capturing Group(?:\.\d+)?

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d+a Unicode decimal digit, repeated at least once

m2the literal text m2 (case sensitive)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

25 tokens

Regular Expression

(?<![\u4E00-\u9FAF\u3040-\u3096\u30A1-\u30FA\uFF66-\uFF9D\u31F0-\u31FF])(?<!\d)(?<!\d\.)(\d+(?:\.\d+)?m2)

New

"110.94m2・129.24m2";
 --> 110.94m2 and 129.24m2
"81.95m2（24.78坪）、うち2階車庫8.9m2" 
 --> 81.95m2
"80.93m2（登記）"
 --> 80.93m2
"93.42m2・93.85m2（登記）"
 --> 93.42m2 and 93.85m2
"81.82m2（実測）"
 --> 81.82m2
"81.82m2（実測）、うち１階車庫7.82m2"
 --> 81.82m2
"90.11m2（実測）、うち１階車庫8.07m2"
 --> 90.11m2

Extraction

"110.94m2・129.24m2";
 --> 110.94m2 and 129.24m2
"81.95m2（24.78坪）、うち2階車庫8.9m2" 
 --> 81.95m2
"80.93m2（登記）"
 --> 80.93m2
"93.42m2・93.85m2（登記）"
 --> 93.42m2 and 93.85m2
"81.82m2（実測）"
 --> 81.82m2
"81.82m2（実測）、うち１階車庫7.82m2"
 --> 81.82m2
"90.11m2（実測）、うち１階車庫8.07m2"
 --> 90.11m2