String.gmatch - Revision history

76.184.213.234 at 19:57, 9 October 2010

2010-10-09T19:57:42Z

76.184.213.234 at 03:57, 8 October 2010

2010-10-08T03:57:58Z

76.184.213.234 at 03:51, 8 October 2010

2010-10-08T03:51:19Z

76.184.213.234: Created page with " string.gmatch (s, pattern) Returns an iterator function that, each time it is called, returns the next captures from pattern over string s. If pattern specifies no captures, the..."

2010-10-08T03:50:47Z

Created page with " string.gmatch (s, pattern) Returns an iterator function that, each time it is called, returns the next captures from pattern over string s. If pattern specifies no captures, the..."

New page

string.gmatch (s, pattern)
Returns an iterator function that, each time it is called, returns the next captures from pattern over string s. If pattern specifies no captures, then the whole match is produced in each call.

As an example, the following loop

s = "hello world from Lua"
for w in string.gmatch(s, "%a+") do
print(w)
end

will iterate over all the words from string s, printing one per line. The next example collects all pairs key=value from the given string into a table:

t = {}
s = "from=world, to=Lua"
for k, v in string.gmatch(s, "(%w+)=(%w+)") do
t[k] = v
end

For this function, a '^' at the start of a pattern does not work as an anchor, as this would prevent the iteration.

← Older revision		Revision as of 19:57, 9 October 2010
Line 20:		Line 20:

	[[String.find]]		[[String.find]]
		+
		+	[[String.match]]
		+
		+	[[String.sub]]

	[http://www.lua.org/manual/5.1/manual.html#5.4.1 Lua Manual - String Patterns]		[http://www.lua.org/manual/5.1/manual.html#5.4.1 Lua Manual - String Patterns]

← Older revision		Revision as of 03:57, 8 October 2010
Line 18:		Line 18:

	For this function, a '^' at the start of a pattern does not work as an anchor, as this would prevent the iteration.		For this function, a '^' at the start of a pattern does not work as an anchor, as this would prevent the iteration.
		+
		+	[[String.find]]

	[http://www.lua.org/manual/5.1/manual.html#5.4.1 Lua Manual - String Patterns]		[http://www.lua.org/manual/5.1/manual.html#5.4.1 Lua Manual - String Patterns]

← Older revision		Revision as of 03:51, 8 October 2010
Line 18:		Line 18:

	For this function, a '^' at the start of a pattern does not work as an anchor, as this would prevent the iteration.		For this function, a '^' at the start of a pattern does not work as an anchor, as this would prevent the iteration.
		+
		+	[http://www.lua.org/manual/5.1/manual.html#5.4.1 Lua Manual - String Patterns]