Regex to match GitHub’s Markdown code blocks
In a quest to fix a small issue on wtf.js, I struggled on the web for a few hours until I got a regular expression good enough for my purpose: match GitHub’s Markdown code blocks, which means code inside tags like ```.
/```[a-z]*\n[\s\S]*?\n```/gThe expression above is able to do the following (green highlights are matches):
Image courtesy of Refiddle.
Written by Gonçalo Morais
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3 Responses
I think you hit an issue displaying your regex. Coderwall interpreted part of your regex as a code snippet and removed an important piece!
You are totally right, thank you! I had to change the post a bit, in order to render the regex correctly… Again, thank you!
Hello!
Thank you very much for your post!
I use your regex in python, but it doesn't work well.
It work for this :
sun.util.calendar.ZoneInfo[id="Europe/Zurich",offset=3600000,dstSavings=3600000,useDaylight=true,transitions=119,lastRule=java.util.SimpleTimeZone[id=Europe/Zurich,offset=3600000,dstSavings=3600000,useDaylight=true,startYear=0,startMode=2,startMonth=2,startDay=-1,startDayOfWeek=1,startTime=3600000,startTimeMode=2,endMode=2,endMonth=9,endDay=-1,endDayOfWeek=1,endTime=3600000,endTimeMode=2]]
But not for that :
java
public void testMonthDayPlusDaysWrapsMonthCorrectly() {
MonthDay d = new MonthDay(5,15);
assertEquals(d.plusDays(25).plusDays(25), d.plusDays(50));
}
For exemple :
import re
string_1 = """
sun.util.calendar.ZoneInfo[id="Europe/Zurich",offset=3600000,dstSavings=3600000,useDaylight=true,transitions=119,lastRule=java.util.SimpleTimeZone[id=Europe/Zurich,offset=3600000,dstSavings=3600000,useDaylight=true,startYear=0,startMode=2,startMonth=2,startDay=-1,startDayOfWeek=1,startTime=3600000,startTimeMode=2,endMode=2,endMonth=9,endDay=-1,endDayOfWeek=1,endTime=3600000,endTimeMode=2]]"""
string_2 = """java
public void testMonthDayPlusDaysWrapsMonthCorrectly() {
MonthDay d = new MonthDay(5,15);
assertEquals(d.plusDays(25).plusDays(25), d.plusDays(50));
}"""
markdown1 = re.findall(r'([a-z]*\n[\s\S]*?\n)', string1)
markdown2 = re.findall(r'([a-z]*\n[\s\S]*?\n)', string2)
print(markdown1)
print(markdown2)
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