In vscode ,
ctrl+/ can comment ,
and can also uncomment ,
does emeditor support this?
By default, Ctrl+K, C to comment, and Ctrl+K, U to uncomment. You can always change the keyboard shortcuts.
If you need to toggle Comment/Uncomment, you will need to write a macro like this:
s = document.selection.Text;
if( s.length == 0 ) {
s = document.GetLine( document.selection.GetActivePointY( eePosLogical ) );
}
if( s.length >= 2 && s.substr( 0, 2 ) == "//" ) {
editor.ExecuteCommandByID(4372); // Uncomment
}
else {
editor.ExecuteCommandByID(4371); // Comment
}
This macro assumes the first two characters of a comment line is //.
Related
When debugging i often need to put a conditional breakpoint, ex :
if messageType == 1 {
nop; // <-- breakpoint
}
There is no 'nop' command and am fairly used to just put a dummy line in which is doing, ex :
if messageType == 1 {
x = 1; // <-- breakpoint
}
And then put the breakpoint at the line with x = 1.
Issue is in Go the compiler often starts battling me because im not using x etc - and am just wondering if theres a quick and smarter way of doing it with a oneline statement ? what do you guys do ?
Just don't store it in a real variable:
if messageType == 1 {
_ = 1
}
How to get previous character of current cursor position in ckeditor? for example, assume '|' char is the cursor position in "Hello| World" text then I want to get 'o' character.
Given that editor is one of CKEDITOR.instances, the following should do the trick:
function getPrevChar() {
var range = editor.getSelection().getRanges()[ 0 ],
startNode = range.startContainer;
if ( startNode.type == CKEDITOR.NODE_TEXT && range.startOffset )
// Range at the non-zero position of a text node.
return startNode.getText()[ range.startOffset - 1 ];
else {
// Expand the range to the beginning of editable.
range.collapse( true );
range.setStartAt( editor.editable(), CKEDITOR.POSITION_AFTER_START );
// Let's use the walker to find the closes (previous) text node.
var walker = new CKEDITOR.dom.walker( range ),
node;
while ( ( node = walker.previous() ) ) {
// If found, return the last character of the text node.
if ( node.type == CKEDITOR.NODE_TEXT )
return node.getText().slice( -1 );
}
}
// Selection starts at the 0 index of the text node and/or there's no previous text node in contents.
return null;
}
Check the jsFiddle. Give it a try: put the caret anywhere but mostly before ^ to see if tricky cases are covered.
I have the file given below:
elix554bx.xayybol.42> vi setup.REVISION
# Revision information
setenv RSTATE R24C01
setenv CREVISION X3
exit
My requirement is to read RSTATE from file and then increment last 2 digits of RSTATE in setup.REVISION file and overwrite into same file.
Can you please suggest how to do this?
If you're using vim, then you can use the sequence:
/RSTATE/
$<C-a>:x
The first line is followed by a return and searches for RSTATE. The second line jumps to the end of the line and uses Control-a (shown as <C-a> above, and in the vim documentation) to increment the number. Repeat as often as you want to increment the number. The :x is also followed by a return and saves the file.
The only tricky bit is that the leading 0 on the number makes vim think the number is in octal, not decimal. You can override that by using :set nrformats= followed by return to turn off octal and hex; the default value is nrformats=octal,hex.
You can learn an awful lot about vim from the book Practical Vim: Edit Text at the Speed of Thought by Drew Neil. This information comes from Tip 10 in chapter 2.
Here's an awk one-liner type solution:
awk '{
if ( $0 ~ 'RSTATE' ) {
match($0, "[0-9]+$" );
sub( "[0-9]+$",
sprintf( "%0"RLENGTH"d", substr($0, RSTART, RSTART+RLENGTH)+1 ),
$0 );
print; next;
} else { print };
}' setup.REVISION > tmp$$
mv tmp$$ setup.REVISION
Returns:
setenv RSTATE R24C02
setenv CREVISION X3
exit
This will handle transitions from two to three to more digits appropriately.
I wrote for you a class.
class Reader
{
public string ReadRs(string fileWithPath)
{
string keyword = "RSTATE";
string rs = "";
if(File.Exists(fileWithPath))
{
StreamReader reader = File.OpenText(fileWithPath);
try
{
string line = "";
bool finded = false;
while (reader != null && !finded)
{
line = reader.ReadLine();
if (line.Contains(keyword))
{
finded = true;
}
}
int index = line.IndexOf(keyword);
rs = line.Substring(index + keyword.Length +1, line.Length - 1 - (index + keyword.Length));
}
catch (IOException)
{
//Error
}
finally
{
reader.Close();
}
}
return rs;
}
public int GetLastTwoDigits(string rsState)
{
int digits = -1;
try
{
int length = rsState.Length;
//Get the last two digits of the rsstate
digits = Int32.Parse(rsState.Substring(length - 2, 2));
}
catch (FormatException)
{
//Format Error
digits = -1;
}
return digits;
}
}
You can use this as exists
Reader reader = new Reader();
string rsstate = reader.ReadRs("C://test.txt");
int digits = reader.GetLastTwoDigits(rsstate);
Please correct the below code:only.
file already contains entries : 1st row username; 2nd row password.
checkbox status required to write to the third line and need to read or alter only the checkbox status value in the file.
Currently this code is working if there already is a value for the checkbox status value, then it is overwriting, else UI is hanging.
WriteCheckStatusToFile(BOOL& locVar)
{
FILE *l_pFile = NULL;
CString l_strRememberCheck;
l_strRememberCheck = GetExePath() + _T("password");
CString sVar;
sVar.Format(_T("%d"),locVar);
if(NULL != (l_pFile = fopen(l_strRememberCheck, _T("r+"))) )
{
int count = 0;
char c;
while(count != 2)
{
if((c = fgetc(l_pFile)) == '\n') count++;
}
fseek(l_pFile,ftell(l_pFile),SEEK_SET);
fprintf(l_pFile, sVar);
}
l_strRememberCheck.ReleaseBuffer();
fclose(l_pFile);
}
thanks in advance to all!
sam.
This line
fprintf(l_pFile, sVar);
doesn't look right. I think it should be
fprintf(l_pFile, "%s\n", (LPCTSTR) sVar);
The loop could become infinite if the file has less than two linefeeds:
while(count != 2)
I think it should be:
while( (count < 2) && ( ! feof(l_pFile) ) && ( c != EOF ) )
Probably unrelated to your error, but - at least for this code snippet - CString::ReleaseBuffer() doesn't need to be called since you have not called CString::GetBuffer().
l_strRememberCheck.ReleaseBuffer();
This line may be unnecessary as it appears to fseek() to where the file pointer already is:
fseek(l_pFile,ftell(l_pFile),SEEK_SET);
In the event a two-line file is not terminated with a '\n' you would need to print like this:
if ( count == 2 )
{
fprintf(l_pFile, "%s\n", (LPCTSTR) sVar);
}
else
{
fprintf(l_pFile, "\n%s\n", (LPCTSTR) sVar);
}
How can we do validation for percentage numbers in textbox .
I need to validate these type of data
Ex: 12-3, 33.44a, 44. , a3.56, 123
thanks in advance
sri
''''Add textbox'''''
<asp:TextBox ID="PERCENTAGE" runat="server"
onkeypress="return ispercentage(this, event, true, false);"
MaxLength="18" size="17"></asp:TextBox>
'''''Copy below function as it is and paste in tag..'''''''
<script type="text/javascript">
function ispercentage(obj, e, allowDecimal, allowNegative)
{
var key;
var isCtrl = false;
var keychar;
var reg;
if (window.event)
{
key = e.keyCode;
isCtrl = window.event.ctrlKey
}
else if (e.which)
{
key = e.which;
isCtrl = e.ctrlKey;
}
if (isNaN(key)) return true;
keychar = String.fromCharCode(key);
// check for backspace or delete, or if Ctrl was pressed
if (key == 8 || isCtrl)
{
return true;
}
ctemp = obj.value;
var index = ctemp.indexOf(".");
var length = ctemp.length;
ctemp = ctemp.substring(index, length);
if (index < 0 && length > 1 && keychar != '.' && keychar != '0')
{
obj.focus();
return false;
}
if (ctemp.length > 2)
{
obj.focus();
return false;
}
if (keychar == '0' && length >= 2 && keychar != '.' && ctemp != '10') {
obj.focus();
return false;
}
reg = /\d/;
var isFirstN = allowNegative ? keychar == '-' && obj.value.indexOf('-') == -1 : false;
var isFirstD = allowDecimal ? keychar == '.' && obj.value.indexOf('.') == -1 : false;
return isFirstN || isFirstD || reg.test(keychar);
}
</script>
You can further optimize this expression. Currently its working for all given patterns.
^\d*[aA]?[\-.]?\d*[aA]?[\-.]?\d*$
If you're talking about checking that a given text is a valid percentage, you can do one of a few things.
validate it with a regex like ^[0-9]+\.?[0-9]*$ then just convert that to a floating point value and check it's between 0 and 100 (that particular regex requires a zero before the decimal for values less than one but you can adapt it to handle otherwise).
convert it to a float using a method that raises an exception on invalid data (rather than just stopping at the first bad character.
use a convoluted regex which checks for valid entries without having to convert to a float.
just run through the text character by character counting numerics (a), decimal points (b) and non-numerics (c). Provided a is at least one, b is at most one, and c is zero, then convert to a float.
I have no idea whether your environment support any of those options since you haven't actually specified what it is :-)
However, my preference is to go for option 1, 2, 4 and 3 (in that order) since I'm not a big fan of convoluted regexes. I tend to think that they do more harm than good when thet become to complex to understand in less than three seconds.
Finally i tried a simple validation and works good :-(
function validate(){
var str = document.getElementById('percentage').value;
if(isNaN(str))
{
//alert("value out of range or too much decimal");
}
else if(str > 100)
{
//alert("value exceeded");
}
else if(str < 0){
//alert("value not valid");
}
}