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Batch file: Find if substring is in string (not in a file)
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When this is run in CMD.EXE, we get:
C:\DemoDev>y pqrs "abc def pqr 123"
got one - pattern not found
C:\DemoDev>y pqr "abc def pqr 123"
got zero - found pattern
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Test if characters are in a string
...# Correct
> grepl("1+2", "1+2", fixed=TRUE)
[1] TRUE
> grepl("1+2", "123+456", fixed=TRUE)
[1] FALSE
# Incorrect
> grepl("1+2", "1+2")
[1] FALSE
> grepl("1+2", "123+456")
[1] TRUE
Interpretation
grep is named after the linux executable, which is itself an acronym of "Global Regular...
Remove underline from links in TextView - Android
...versions that don't underline. After you call Linkify.addLinks(), call the function stripUnderlines() pasted below on each of your TextViews:
private void stripUnderlines(TextView textView) {
Spannable s = new SpannableString(textView.getText());
URLSpan[] spans = s.getSpans(0, ...
Regex Email validation
...ht, fail to catch at least two invalid formats: "Abc.@example.com" , "Abc..123@example.com"
– sean717
Aug 22 '12 at 5:22
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How do I do a multi-line string in node.js?
... String \
Here";
What's the difference? A space after the \. Have fun debugging that.
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【转】用App Inventor 2实现电子围栏功能 - App应用开发 - 清泛IT社区，为创新赋能！
...示动图
侵删，文章来源：https://makelog.dfrobot.com.cn/user-1229.html
Alternate output format for psql
... using PostgreSQL 8.4 on Ubuntu. I have a table with columns c1 through cN . The columns are wide enough that selecting all columns causes a row of query results to wrap multiple times. Consequently, the output is hard to read.
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How can I view a git log of just one user's commits?
...commits commited (but not necessarily authored) by Adam, replace %an with %cn. More details about this are in my blog post here: http://dymitruk.com/blog/2012/07/18/filtering-by-author-name/
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On showing dialog i get “Can not perform this action after onSaveInstanceState”
...ingStateLoss() on Transaction object. Here is example in Kotlin:
override fun show(manager: FragmentManager?, tag: String?) {
try {
val ft = manager?.beginTransaction()
ft?.add(this, tag)
ft?.commitAllowingStateLoss()
} catch (ignored: IllegalStat...
Circular gradient in android
...Float, val size: Float): ShapeDrawable.ShaderFactory() {
override fun resize(width: Int, height: Int): Shader {
return RadialGradient(
width * positionX,
height * positionY,
minOf(width, height) * size,
...