My flutter apps displays description strings which are fetched from a third party, thus these descriptions may already be fitted with ellipsis as to lead the story onwards but the api only fetches around 7 lines or so of the description.
I want every description to contain an ellipsis but don't want to add ellipsis to strings that already contain them.
I want to turn this
scan the face of each account holder as
into this
scan the face of each account holder as...
but if the original already contains this ellipsis, it should be skipped.
String input = 'your string';
if (!input.endsWith('...')) {
input += '...';
}
Key here is String.endsWith(), it's the easiest way to know if the content already ends with an ellipsis.
Enhanced answered from #greyaurora
be careful trailing space, e.g. my data...
be careful with different ways to display ellipsis, e.g. ... (3 dots ) vs … (1-char ellipsis)
void main() {
String input = 'your string';
String trimmed = input.trim();
if (!trimmed.endsWith('...') && !trimmed.endsWith('…')) {
trimmed += '…';
}
print('hello ${trimmed}');
}
Related
I have a string similar to below
"OPR_NAME:CODE=value,:DESC=value,:NUMBER=value,:INITIATOR=value,:RESP"
I am using StringTokenizer to split the string into tokens based on the delimiter(,:),I need the values of
CODE,DESC and NUMBER.
Can someone pls tell how to achieve this ? The values may come in random order in my string
For eg my string may be like below as well :
"OPR_NAME:DESC=value,:NUMBER=value,:CODE=value,:INITIATOR=value,:RESP" and still it should be able to fetch the values.
I did below to split the string into tokens
StringTokenizer st = new StringTokenizer(str,",:");
while (st.hasMoreTokens()) {
System.out.println(st.nextToken());
}
But not sure how to store these tokens to just get the value of 3 fields as mentioned above.
Thanks !!
Okay so what I meant is, detect where is the "=" and then apply a substring to get the value you want.
rough example
System.out.println(st.nextToken().substring(st.nextToken().indexOf('=')+1,st.nextToken().length()));
Use split instead :
String[] parts = X.split(",:");
for (String x:parts) {
System.out.println(x.substring(x.indexOf('=')+1));
}
The Problem
I have slice of string values wherein each value is formatted based on a template. In my particular case, I am trying to parse Markdown URLs as shown below:
- [What did I just commit?](#what-did-i-just-commit)
- [I wrote the wrong thing in a commit message](#i-wrote-the-wrong-thing-in-a-commit-message)
- [I committed with the wrong name and email configured](#i-committed-with-the-wrong-name-and-email-configured)
- [I want to remove a file from the previous commit](#i-want-to-remove-a-file-from-the-previous-commit)
- [I want to delete or remove my last commit](#i-want-to-delete-or-remove-my-last-commit)
- [Delete/remove arbitrary commit](#deleteremove-arbitrary-commit)
- [I tried to push my amended commit to a remote, but I got an error message](#i-tried-to-push-my-amended-commit-to-a-remote-but-i-got-an-error-message)
- [I accidentally did a hard reset, and I want my changes back](#i-accidentally-did-a-hard-reset-and-i-want-my-changes-back)
What I want to do?
I am looking for ways to parse this into a value of type:
type Entity struct {
Statement string
URL string
}
What have I tried?
As you can see, all the items follow the pattern: - [{{ .Statement }}]({{ .URL }}). I tried using the fmt.Sscanf function to scan each string as:
var statement, url string
fmt.Sscanf(s, "[%s](%s)", &statement, &url)
This results in:
statement = "I"
url = ""
The issue is with the scanner storing space-separated values only. I do not understand why the URL field is not getting populated based on this rule.
How can I get the Markdown values as mentioned above?
EDIT: As suggested by Marc, I will add couple of clarification points:
This is a general purpose question on parsing strings based on a format. In my particular case, a Markdown parser might help me but my intention to learn how to handle such cases in general where a library might not exist.
I have read the official documentation before posting here.
Note: The following solution only works for "simple", non-escaped input markdown links. If this suits your needs, go ahead and use it. For full markdown-compatibility you should use a proper markdown parser such as gopkg.in/russross/blackfriday.v2.
You could use regexp to get the link text and the URL out of a markdown link.
So the general input text is in the form of:
[some text](somelink)
A regular expression that models this:
\[([^\]]+)\]\(([^)]+)\)
Where:
\[ is the literal [
([^\]]+) is for the "some text", it's everything except the closing square brackets
\] is the literal ]
\( is the literal (
([^)]+) is for the "somelink", it's everything except the closing brackets
\) is the literal )
Example:
r := regexp.MustCompile(`\[([^\]]+)\]\(([^)]+)\)`)
inputs := []string{
"[Some text](#some/link)",
"[What did I just commit?](#what-did-i-just-commit)",
"invalid",
}
for _, input := range inputs {
fmt.Println("Parsing:", input)
allSubmatches := r.FindAllStringSubmatch(input, -1)
if len(allSubmatches) == 0 {
fmt.Println(" No match!")
} else {
parts := allSubmatches[0]
fmt.Println(" Text:", parts[1])
fmt.Println(" URL: ", parts[2])
}
}
Output (try it on the Go Playground):
Parsing: [Some text](#some/link)
Text: Some text
URL: #some/link
Parsing: [What did I just commit?](#what-did-i-just-commit)
Text: What did I just commit?
URL: #what-did-i-just-commit
Parsing: invalid
No match!
You could create a simple lexer in pure-Go code for this use case. There's a great talk by Rob Pike from years ago that goes into the design of text/template which would be applicable. The implementation chains together a series of state functions into an overall state machine, and delivers the tokens out through a channel (via Goroutine) for later processing.
i am fighting with a string splitting. I want to split string by wildcards into a slice, but this slice should contain this wildcards as well.
For example: /applications/{name}/tokens/{name} should be split into [/applications/ {name} /tokens/ {name}] etc.
Here is a sample code i wrote, but it is not working correctly, and i don't feel good about it either.
https://play.golang.org/p/VMOsJeaI4l
There are some example routes to be tested. Method splitPath split path into parts and display both: before and after.
Here is a solution:
var validPathRe = regexp.MustCompile("^(/{[[:alpha:]]+}|/[-_.[:alnum:]]+)+$")
var splitPathRe = regexp.MustCompile("({[[:alpha:]]+}|[-_.[:alnum:]]+)")
func splitPath(path string) parts{
var retPaths parts
if !validPathRe.MatchString(path) {
return retPaths
}
retPaths = splitPathRe.FindAllString(path, -1)
return retPaths
}
I made this by creating two regular expressions, one to check if the path was valid or not, the other to extract the various parts of the path and return them. If the path is not valid it will return an empty list. The return of this will look like this:
splitPath("/path/{to}/your/file.txt")
["path" "{to}" "your" "file.txt"]
This doesn't include the '/' character because you already know that all strings in the return but the last string is a directory and the last string is the file name. Because of the validity check you can assume this.
I currently have an Event Receiver that is attached to a custom list. My current requirement is to implement column level security for a Rich Text field (Multiple lines of text with enhanced rich text).
According to this post[webarchive], I can get the field's before and after values like so:
object oBefore = properties.ListItem[f.InternalName];
object oAfter = properties.AfterProperties[f.InternalName];
The problem is that I'm running to issues comparing these two values, which lead to false positives (code is detecting a change when there wasn't one).
Exhibit A: Using ToString on both objects
oBefore.ToString()
<div class=ExternalClass271E860C95FF42C6902BE21043F01572>
<p class=MsoNormal style="margin:0in 0in 0pt">Text.
</div>
oAfter.ToString()
<DIV class=ExternalClass271E860C95FF42C6902BE21043F01572>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt">Text.
</DIV>
Problems?
HTML tags are capitalized
Random spaces (see the additional space after margin:)
Using GetFieldValueForEdit or GetFieldValueAsHTML seem to result in the same values.
"OK," you say, so lets just compare the plain text values.
Exhibit B: Using GetFieldValueAsText
Fortunately, this method strips all of the HTML tags out of the value and only plain text is displayed. However, using this method led me to discover additional issues with whitespace characters:
In the before value:
Sometimes there are additional newline characters.
Sometimes spaces are displayed as non-breaking spaces (ASCII char code 160)
Question:
How can I detect if the user changed a rich text field in an event receiver?
[Ideal] Detect any change to HTML or text or white space
[Acceptable] Detect changes to text or white space
[Not so good] Detect changes to text characters only (strip all non-alphanumeric characters)
What happens if you set the ListItem field with the new value and read it back out? Does that give the same formatting?
object oBefore = properties.ListItem[f.InternalName];
properties.ListItem[f.InternalName] = properties.AfterProperties[f.InternalName]
object oAfter = properties.ListItem[f.InternalName];
//dont update
properties.ListItem[f.InternalName] = oBefore;
I would probably try something between choices 2 and 3:
bool changed =
valueAsTextBefore != valueAsTextAfter ||
0 != string.Compare(
oBefore.ToString().Replace(" ", ""),
oAfter.ToString().Replace(" ", ""),
true);
The left half checks if the text (including case) has changed while the right half checks if the tags or attributes have changed. Very kludgy, but should fit your case.
The only other thing I can think of is to run an XML transform on the HTML in order to standardize on case and spacing. But not only does that seem like overkill, but it assumes the HTML will always be well formed.
I'm currently testing a combination approach: GetFieldValueAsText and then stripping out all characters except alphanumeric/punctuation:
static string GetRichTextValue(string value)
{
if (null == value)
{
return string.Empty;
}
StringBuilder sb = new StringBuilder(value.Length);
foreach (char c in value)
{
if (char.IsLetterOrDigit(c) || char.IsPunctuation(c))
{
sb.Append(c);
}
}
return sb.ToString();
}
This only detects changes to the text of a rich text field but seems to work consistently.
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We have been asked by a client to incorporate ICD-9 codes into a system.
I'm looking for a good resource to get a complete listing of codes and descriptions that will end up in a SQL database.
Unfortunately a web service is out of the question as a fair amount of the time folks will be off line using the application.
I've found http://icd9cm.chrisendres.com/ and http://www.icd9data.com/ but neither offer downloads/exports of the data that I could find.
I also found http://www.cms.hhs.gov/MinimumDataSets20/07_RAVENSoftware.asp which has a database of the ICD-9 codes but they are not in the correct format and I'm not 100% sure how to properly convert (It shows the code 5566 which is really 556.6 but I can't find a rule as to how/when to convert the code to include a decimal)
I'm tagging this with medical and data since I'm not 100% sure where it should really be tagged...any help there would also be appreciated.
Just wanted to chime in on how to correct the code decimal places. First, there are four broad points to consider:
Standard codes have Decimal place XXX.XX
Some Codes Do not have trailing decimal places
V Codes also follow the XXX.XX format --> V54.31
E Codes follow XXXX.X --> E850.9
Thus the general logic of how to fix the errors is
If first character = E:
If 5th character = '':
Ignore
Else replace XXXXX with XXXX.X
Else If 4th-5th Char is not '': (XXXX or XXXXX)
replace XXXXX with XXX + . + remainder (XXX.XX or XXX.X)
(All remaining are XXX)
I implemented this with two SQL Update statements:
Number 1, for Non E-codes:
USE MainDb;
UPDATE "dbo"."icd9cm_diagnosis_codes"
SET "DIAGNOSIS CODE" = SUBSTRING("DIAGNOSIS CODE",1,3)+'.'+SUBSTRING("DIAGNOSIS CODE",4,5)
FROM "dbo"."icd9cm_diagnosis_codes"
WHERE
SUBSTRING("DIAGNOSIS CODE",4,5) != ''
AND
LEFT("DIAGNOSIS CODE",1) != 'E'
Number 2 - For E Codes:
UPDATE "dbo"."icd9cm_diagnosis_codes"
SET "DIAGNOSIS CODE" = SUBSTRING("DIAGNOSIS CODE",1,4)+'.'+SUBSTRING("DIAGNOSIS CODE",5,5)
FROM "dbo"."icd9_Diagnosis_table"
WHERE
LEFT("DIAGNOSIS CODE",1) = 'E'
AND
SUBSTRING("DIAGNOSIS CODE",5,5) != ''
Seemed to do the trick for me (Using SQL Server 2008).
I ran into this same issue a while back and ended up building my own solution from scratch. Recently, I put up an open API for the codes for others to use: http://aqua.io/codes/icd9/documentation
You can just download all codes in JSON (http://api.aqua.io/codes/beta/icd9.json) or pull an individual code (http://api.aqua.io/codes/beta/icd9/250-1.json). Pulling a single code not only gives you the ICD-10 "crosswalk" (equivalents), but also some extra goodies, like relevant Wikipedia links.
I finally found the following:
"The field for the ICD-9-CM Principal and Other Diagnosis Codes is six characters in length, with the decimal point implied between the third and fourth digit for all diagnosis codes other than the V codes. The decimal is implied for V codes between the second and third digit."
So I was able to get a hold of a complete ICD-9 list and reformat as required.
You might find that the ICD-9 codes follow the following format:
All codes are 6 characters long
The decimal point comes between the 3rd and 4th characters
If the code starts with a V character the decimal point comes between the 2nd and 3rd characters
Check this out: http://en.wikipedia.org/wiki/List_of_ICD-9_codes
I struggled with this issue myself for a long time as well. The best resource I have been able to find for these are the zip files here:
https://www.cms.gov/ICD9ProviderDiagnosticCodes/06_codes.asp
It's unfortunate because they (oddly) are missing the decimal places, but as several other posters have pointed out, adding them is fairly easy since the rules are known. I was able to use a regular expression based "find and replace" in my text editor to add them. One thing to watch out for if you go that route is that you can end up with codes that have a trailing "." but no zero after it. That's not valid, so you might need to go through and do another find/replace to clean those up.
The annoying thing about the data files in the link above is that there is no relationship to categories. Which you might need depending on your application. I ended up taking one of the RTF-based category files I found online and re-formatting it to get the ranges of each category. That was still doable in a text editor with some creative regular expressions.
I was able to use the helpful answers here an create a groovy script to decimalize the code and combine long and short descriptions into a tab separated list. In case this helps anyone, I'm including my code here:
import org.apache.log4j.BasicConfigurator
import org.apache.log4j.Level
import org.apache.log4j.Logger
import java.util.regex.Matcher
import java.util.regex.Pattern
Logger log = Logger.getRootLogger()
BasicConfigurator.configure();
Logger.getRootLogger().setLevel(Level.INFO);
Map shortDescMap = [:]
new File('CMS31_DESC_SHORT_DX.txt').eachLine {String l ->
int split = l.indexOf(' ')
String code = l[0..split].trim()
String desc = l[split+1..-1].trim()
shortDescMap.put(code, desc)
}
int shortLenCheck = 40 // arbitrary lengths, but provide some sanity checking...
int longLenCheck = 300
File longDescFile = new File('CMS31_DESC_LONG_DX.txt')
Map cmsRows = [:]
Pattern p = Pattern.compile(/^(\w*)\s+(.*)$/)
new File('parsedICD9.csv').withWriter { out ->
out.write('ICD9 Code\tShort Description\tLong Description\n')
longDescFile.eachLine {String row ->
Matcher m = row =~ p
if (m.matches()) {
String code = m.group(1)
String shortDescription = shortDescMap.get(code)
String longDescription = m.group(2)
if(shortDescription.size() > shortLenCheck){
log.info("Not short? $shortDescription")
}
if(longDescription.size() > longLenCheck){
log.info("${longDescription.size()} == Too long? $longDescription")
}
log.debug("Match 1:${code} -- 2:${longDescription} -- orig:$row")
if (code.startsWith('V')) {
if (code.size() > 3) {
code = code[0..2] + '.' + code[3..-1]
}
log.info("Code: $code")
} else if (code.startsWith('E')) {
if (code.size() > 4) {
code = code[0..3] + '.' + code[4..-1]
}
log.info("Code: $code")
} else if (code.size() > 3) {
code = code[0..2] + '.' + code[3..-1]
}
if (code) {
cmsRows.put(code, ['longDesc': longDescription])
}
out.write("$code\t$shortDescription\t$longDescription\n")
} else {
log.warn "No match for row: $row"
}
}
}
I hope this helps someone.
Sean