regex101: Python Substitution Workspace

Pro

^start of line

Group 1(.*?\bchange_lane\b.*?)

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

\ba Unicode word boundary

change_lanethe literal text change_lane (case sensitive)

\ba Unicode word boundary

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

\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

Group 2(\.+)

\.+the literal . (46₁₀ / 56₈ / 2E₁₆) , repeated at least once

\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

Group 3(]s\)\s+#)

]sthe literal text ]s (case sensitive)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

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

#the literal # (35₁₀ / 43₈ / 23₁₆)

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

^(.*?\bchange_lane\b.*?)\d+(?:\.\d+)?(\.+)\d+(?:\.\d+)?(]s\)\s+#)

New

step(change_lane in [1.5..2]s) # From: 'change_lane: [1.5..2]s'
step(stop_lane in [1.8..21]s) # From: 'stop_lane: [1.5..2]s'
step(stay_lane in [1.7..9]s) # From: 'stay_lane: [1.5..2]s'
The new lane change is == 25

Substitution

\g<1>200\g<2>17.21\g<3>

step(change_lane in [1.5..2]s) # From: 'change_lane: [1.5..2]s'
step(stop_lane in [1.8..21]s) # From: 'stop_lane: [1.5..2]s'
step(stay_lane in [1.7..9]s) # From: 'stay_lane: [1.5..2]s'
The new lane change is == 25