lex | Safe and simple string templates for Android | Runtime Evironment library
kandi X-RAY | lex Summary
kandi X-RAY | lex Summary
Add the following to the top of your app's Application.onCreate method:. IMPORTANT: Don't initialize Lex outside of Application.onCreate as it can have unexpected consequences.
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Top functions reviewed by kandi - BETA
- Binds a book
- Adds a character to the list
- Creates a string with the specified resource id
- Checks state
- Creates a plural resource with a plural resource
- Stores the key and value pair
- Adds a new key with the given value
- Applies a key to the context
- Sets the text content into a text view
- Gets the item at the specified index
- Returns a single item separated by one
- Make three or more items of the list
- Initializes the lexicon
- Sets the default delimiterers
- Initializes the lexer with custom delimiters
- Set the delimiters by delimiter
- Creates a pattern which contains a key from a delimiter
- Sets the delimiters which should be used to delimiters
- Sets the last transformed text in the context
- Wrap the string
- Performs the benchmark
- Performs a benchmark
- Returns a string representation of this object
- Sets the activity to be created when the activity is created
- Set the activity to be created
lex Key Features
lex Examples and Code Snippets
Community Discussions
Trending Discussions on lex
QUESTION
I am generating lexical analyzer with JLEX. I found a regular expression for string literal from this link and used it in .jflex file same of other expressions. but it gives me this error :
unterminated string at the end of the line
StringLiteral = \"(\\.|[^"\\])*\"
can anyone help me please, thanks.
...ANSWER
Answered 2021-Jun-15 at 20:46The regular expression you copied is for (f)lex, which uses a slightly different syntax for regular expressions. In particular, (f)lex treats "
as an ordinary character inside bracketed classes, so [^"\\]
is a character class matching anything other than (^
) a quotation mark ("
) or a backslash (\\
).
However, in JFlex, the "
is a quoting character, whether outside or inside brackets. So the "
in the character class is unterminated. Hence the error message.
So you need to backslash-escape it:
QUESTION
I'm attempting to create a reentrant parser using C++ with flex and bison. I'm also using a driver class Driver
. I'm getting the error 'yyscanner' : undeclared identifier
on the lex side of things. I think it has something to do with the reentrant option in flex, which is strange since I would have assumed that driver
would have been used in it's place, since I declare yylex
as yylex(Driver& driver)
in driver.h
. Is there anything I've done wrong in my code below to get this error message? Any help would be much appreciated.
parser.y
...ANSWER
Answered 2021-Jun-12 at 23:55If you generate a reentrant scanner, you must define its prototype to include a parameter named yyscanner
of type yyscan_t
. And you need to call the scanner with that argument. You cannot substitute some type you have defined for the yyscan_t
argument, because your type does not include the data members which the flex-generated scanner uses. And you must use the name yyscanner
because that's how the code generated by Flex references the data members.
If you want a yylex
which only needs one argument, the "official" way to do that is to put your data members (or a pointer to them) into the "extra data" in the yyscan_t
. But it might be easier to just use two arguments.
QUESTION
I am trying to write a yacc program to find out whether an Arithmetic Expression is valid or not. My program seems to be running properly but I am getting a warning in console.
...ANSWER
Answered 2021-Jun-12 at 02:17Your grammar is ambiguous; E OPERATOR E
can apply to a + b * c
in two ways (with two different meanings), depending on whether the first E
is used to derive a
or a + b
.
Ambiguous grammars always have conflicts, because there is always a point in the parse where the parser could use more than one conflicting action. (The inverse is not true: a grammar with a conflict is not necessarily ambiguous. That will come later in your course, I suppose.)
So if you want to eliminate the conflict, you need to choose which of the two possible derivations above is correct (and all the similar ambiguities, but since they all have the same cause a relatively simple fix is possible).
QUESTION
My Rails app runs with nginx's www-data user and all disk write functions are owned by www-data and so all the app's related disk stored assets are owned by www-data. Sometimes I need to raise the Rails console and perform actions that touch or create stored assets and I do not want these touched/created assets to become owned by root or another admin user, I want them to remain owned by the www-data user. This worked fine under ruby 1.9.3 -> 2.6.x:
...ANSWER
Answered 2021-Jun-09 at 16:42I believe all you have to do is configure the HOME variable to your command so it looks like:
QUESTION
I really just need another set of eyes on this code. As you can see, I am searching for files with the pattern "*45Fall...". But every time I run it, it pulls up the files "*45Sum..." and one time pulled up the "*45Win..." files. It seems totally random and the code clearly asks for Fall. I'm confused.
What I am doing is importing all files with "Fall_2040301", (there are many other numbers associated with "Fall" as well as many other names associated with "*Fall_2040301", as well as Win, Spr, and Sum). I am truncating them at 56 lines by removing the last 84 lines, and binding them together so that I can write them out as a group.
...ANSWER
Answered 2021-Jun-09 at 01:05Ok, it doesn't seem to matter whether I use ".45Fall_2222"
or "*45Fall_2222"
, both return the same result. The problem turned out to be with the read_data
function. I had originally tried this:
QUESTION
['[{"word":"meaning","phonetics":[{"text":"/ˈmiːnɪŋ/","audio":"https://lex-audio.useremarkable.com/mp3/meaning_gb_1.mp3"}],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"What '
'is meant by a word, text, concept, or '
'action.","synonyms":["definition","sense","explanation","denotation","connotation","interpretation","elucidation","explication"],"example":"the '
'meaning of the Hindu word is ‘breakthrough, '
'release’"}]},{"partOfSpeech":"adjective","definitions":[{"definition":"Intended '
'to communicate something that is not directly '
'expressed.","synonyms":["meaningful","significant","pointed","eloquent","expressive","pregnant","speaking","telltale","revealing","suggestive"]}]}]}]']
...ANSWER
Answered 2021-Jun-06 at 08:11I believe this is what you want
QUESTION
I want to test a class that connects to an URL to parse html files (I am using Jsoup). The issue is that I do not know how to test this. I know that PowerMockito allows to do so, but I would prefer to avoid it if possible, by refactoring the code and test only important parts.
Here is the pieces of code I want to unit test:
...ANSWER
Answered 2021-May-28 at 08:36The way I do it is by "injecting" something that returns the core object:
Instead of doing:
QUESTION
I am trying to parse a file in order to reformat it. For this, I need to be able to distinguish between full line comments and end of line comments. I have been able to get lex to recognize full line comments properly, but am having issues with end of line comments.
For example: "a = 0; //This; works; fine" but "a = 0; //This, does; not;".
What confuses me the most is that re is able to recognise both comments without issue and yet lex can not.
Here is the relevant code (FL=full line, EL=end of line):
...ANSWER
Answered 2021-May-28 at 02:22Lex (including the Ply variety) builds lexical analysers, not regular expression searchers. Unlike a regular expression library, which generally attempts to scan the entire input to find a pattern, lex tries to decide what pattern matches at the current input point. It then advances the input to the point immediately following, and tries to find the matching pattern at that point. And so on. Every character in the text is contained in some matched token. (Although some tokens might be discarded.)
You can actually take advantage of this fact to simplify your regular expressions. In this case, for example, since you can count on t_FL_COMMENT
to match a comment which does occur at the beginning of a line, any other comment must be not at the start of a line. So no lookbehind is needed:
QUESTION
I am trying to use Ply
to parse a file and am trying to make comment tokens. Comments are designated by either double slashes //
or a hashtag #
. When I try to use the following, no comment tokens are created.
ANSWER
Answered 2021-May-27 at 03:37As the Ply documentation says (with an example):
4.5 Discarded tokensTo discard a token, such as a comment, simply define a token rule that returns no value. For example:
QUESTION
I'm trying to convert this piece of html without any css:
...ANSWER
Answered 2021-May-26 at 07:59As far as I can see your issue is caused by the lack of word wrapping. Your last table row has a long uninterrupted string: the link with the UTM-tags. If you'd remove the utm-tags from it, the cropping would not persist.
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Install lex
You can use lex like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the lex component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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