Regular Expressions 101

\da Unicode decimal digit

\sa Unicode whitespace character

Group 1(\d+\.\d+\s+)

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

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

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

\s+a Unicode whitespace character, repeated at least once

Group 2(\d+\.\d+\.\d+)

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

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

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

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

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

\s+a Unicode whitespace character, repeated at least once

Group XYZ(?P<XYZ>.*$)

.*any Unicode character (except for line terminators), repeated any number of times

$end of line

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

\d\s(\d+\.\d+\s+)\s+(\d+\.\d+\.\d+)\s+(?P<XYZ>.*$)

Test String
New

 
 Number of surface maxima:     7
   #       a.u.         eV      kcal/mol           X/Y/Z coordinate(Angstrom)
     1 21.76342476  592.21290413656.766669      -6.892053  -0.425961  -0.514519
     2 21.95275305  597.36478913775.572064      -6.167357   1.713169  -0.882468

Regular Expression

Test StringNew

Test String
New