user
This task is about writing a computer program that has long literals   (character
literals that may require specifying the words/tokens on more than one (source)
line,   either with continuations or some other method, such as abutments or
concatenations   (or some other mechanisms).

The literal is to be in the form of a "list",   a literal that contains many
words (tokens) separated by a blank (space),   in this case   (so as to have a
common list),   the (English) names of the chemical elements of the periodic table.

The list is to be in (ascending) order of the (chemical) element's atomic number:

```
hydrogen helium lithium beryllium boron carbon nitrogen oxygen fluorine neon sodium aluminum silicon ...

```

... up to the last known (named) chemical element   (at this time).

Do not include any of the   "unnamed"   chemical element names such as:

```
ununennium unquadnilium triunhexium penthextrium penthexpentium septhexunium octenntrium ennennbium

```

To make computer programming languages comparable,   the statement widths should be
restricted to less than   **81**   bytes (characters),   or less
if a computer programming language has more restrictive limitations or standards.

Also mention what column the programming statements can start in if   *not*  
in column one.

The list   *may*   have leading/embedded/trailing blanks during the
declaration   (the actual program statements),   this allows the list to be
more readable.   The "final" list shouldn't have any leading/trailing or superfluous
blanks   (when stored in the program's "memory").

This list should be written with the idea in mind that the
program   *will*   be updated,   most likely by someone other than the
original author,   as there will be newer (discovered) elements of the periodic
table being added   (possibly in the near future).   These future updates
should be one of the primary concerns in writing these programs and it should be "easy"
for someone else to add chemical elements to the list   (within the computer
program).

Attention should be paid so as to not exceed the   *clause length*   of
continued or specified statements,   if there is such a restriction.   If the
limit is greater than (say) 4,000 bytes or so,   it needn't be mentioned here.

Task
:   * Write a computer program (by whatever name) to contain a list of the known elements.
    * The program should eventually contain a long literal of words   (the elements).
    * The literal should show how one could create a long list of blank-delineated words.
    * The "final" (stored) list should only have a single blank between elements.
    * Try to use the most idiomatic approach(es) in creating the final list.
    * Use continuation if possible, and/or show alternatives   (possibly using concatenation).
    * Use a program comment to explain what the continuation character is if it isn't obvious.
    * The program should contain a variable that has the date of the last update/revision.
    * The program, when run, should display with verbiage:

    :   :   * The last update/revision date   (and should be unambiguous).
            * The number of chemical elements in the list.
            * The name of the highest (last) element name.

Show all output here, on this page.

Other tasks related to string operations:

Metrics

* Array length
* String length
* Copy a string
* Empty string  (assignment)

Counting

* Word frequency
* Letter frequency
* Jewels and stones
* I before E except after C
* Bioinformatics/base count
* Count occurrences of a substring
* Count how many vowels and consonants occur in a string

Remove/replace

* XXXX redacted
* Conjugate a Latin verb
* Remove vowels from a string
* String interpolation (included)
* Strip block comments
* Strip comments from a string
* Strip a set of characters from a string
* Strip whitespace from a string -- top and tail
* Strip control codes and extended characters from a string

Anagrams/Derangements/shuffling

* Word wheel
* ABC problem
* Sattolo cycle
* Knuth shuffle
* Ordered words
* Superpermutation minimisation
* Textonyms (using a phone text pad)
* Anagrams
* Anagrams/Deranged anagrams
* Permutations/Derangements

Find/Search/Determine

* ABC words
* Odd words
* Word ladder
* Semordnilap
* Word search
* Wordiff  (game)
* String matching
* Tea cup rim text
* Alternade words
* Changeable words
* State name puzzle
* String comparison
* Unique characters
* Unique characters in each string
* Extract file extension
* Levenshtein distance
* Palindrome detection
* Common list elements
* Longest common suffix
* Longest common prefix
* Compare a list of strings
* Longest common substring
* Find common directory path
* Words from neighbour ones
* Change e letters to i in words
* Non-continuous subsequences
* Longest common subsequence
* Longest palindromic substrings
* Longest increasing subsequence
* Words containing "the" substring
* Sum of the digits of n is substring of n
* Determine if a string is numeric
* Determine if a string is collapsible
* Determine if a string is squeezable
* Determine if a string has all unique characters
* Determine if a string has all the same characters
* Longest substrings without repeating characters
* Find words which contains all the vowels
* Find words which contain the most consonants
* Find words which contains more than 3 vowels
* Find words whose first and last three letters are equal
* Find words with alternating vowels and consonants

Formatting

* Substring
* Rep-string
* Word wrap
* String case
* Align columns
* Literals/String
* Repeat a string
* Brace expansion
* Brace expansion using ranges
* Reverse a string
* Phrase reversals
* Comma quibbling
* Special characters
* String concatenation
* Substring/Top and tail
* Commatizing numbers
* Reverse words in a string
* Suffixation of decimal numbers
* Long literals, with continuations
* Numerical and alphabetical suffixes
* Abbreviations, easy
* Abbreviations, simple
* Abbreviations, automatic

Song lyrics/poems/Mad Libs/phrases

* Mad Libs
* Magic 8-ball
* 99 bottles of beer
* The Name Game (a song)
* The Old lady swallowed a fly
* The Twelve Days of Christmas

Tokenize

* Text between
* Tokenize a string
* Word break problem
* Tokenize a string with escaping
* Split a character string based on change of character

Sequences

* Show ASCII table
* De Bruijn sequences
* Summarize and say sequence
* Generate lower case ASCII alphabet
assistant
|  |
| --- |
| This example is **incorrect**. Please fix the code and remove this message.  ***Details:*** The task is to have a list of the names of the elements, not their atomic weight and chemical element symbol.   Also, the element names are not capitalized. |

Incorrectly marked incorrect. Enforcing rules that exists only in somebodies head.

**Works with**: Rakudo version 2020.02

Not really sure I understand the point of this task. Seems to be load some list into memory and manipulate it somehow. Exceptionally boring to just read it in and then read it back out again. Perform some more interesting manipulations. Use < > quoting construct for literal string; unlimited (memory limited) characters, spaces don't matter, new-lines don't matter, blank lines don't matter.

```
my %periodic;
%periodic<revision-date> = Date.new(2020,3,23);
%periodic<table> = |<

         Hydrogen  1.0079     H             Helium  4.0026    He
          Lithium  6.941     Li          Beryllium  9.0122    Be
            Boron  10.811     B             Carbon  12.0107    C
         Nitrogen  14.0067    N             Oxygen  15.9994    O
         Fluorine  18.9984    F               Neon  20.1797   Ne
           Sodium  22.9897   Na          Magnesium  24.305    Mg
         Aluminum  26.9815   Al            Silicon  28.0855   Si
       Phosphorus  30.9738    P             Sulfur  32.065     S
         Chlorine  35.453    Cl          Potassium  39.0983    K
            Argon  39.948    Ar            Calcium  40.078    Ca
         Scandium  44.9559   Sc           Titanium  47.867    Ti
         Vanadium  50.9415    V           Chromium  51.9961   Cr
        Manganese  54.938    Mn               Iron  55.845    Fe
           Nickel  58.6934   Ni             Cobalt  58.9332   Co
           Copper  63.546    Cu               Zinc  65.39     Zn
          Gallium  69.723    Ga          Germanium  72.64     Ge
          Arsenic  74.9216   As           Selenium  78.96     Se
          Bromine  79.904    Br            Krypton  83.8      Kr
         Rubidium  85.4678   Rb          Strontium  87.62     Sr
          Yttrium  88.9059    Y          Zirconium  91.224    Zr
          Niobium  92.9064   Nb         Molybdenum  95.94     Mo
       Technetium  98        Tc          Ruthenium  101.07    Ru
          Rhodium  102.9055  Rh          Palladium  106.42    Pd
           Silver  107.8682  Ag            Cadmium  112.411   Cd
           Indium  114.818   In                Tin  118.71    Sn
         Antimony  121.76    Sb             Iodine  126.9045   I
        Tellurium  127.6     Te              Xenon  131.293   Xe
           Cesium  132.9055  Cs             Barium  137.327   Ba
        Lanthanum  138.9055  La             Cerium  140.116   Ce
     Praseodymium  140.9077  Pr          Neodymium  144.24    Nd
       Promethium  145       Pm           Samarium  150.36    Sm
         Europium  151.964   Eu         Gadolinium  157.25    Gd
          Terbium  158.9253  Tb         Dysprosium  162.5     Dy
          Holmium  164.9303  Ho             Erbium  167.259   Er
          Thulium  168.9342  Tm          Ytterbium  173.04    Yb
         Lutetium  174.967   Lu            Hafnium  178.49    Hf
         Tantalum  180.9479  Ta           Tungsten  183.84     W
          Rhenium  186.207   Re             Osmium  190.23    Os
          Iridium  192.217   Ir           Platinum  195.078   Pt
             Gold  196.9665  Au            Mercury  200.59    Hg
         Thallium  204.3833  Tl               Lead  207.2     Pb
          Bismuth  208.9804  Bi           Polonium  209       Po
         Astatine  210       At              Radon  222       Rn
         Francium  223       Fr             Radium  226       Ra
         Actinium  227       Ac       Protactinium  231.0359  Pa
          Thorium  232.0381  Th          Neptunium  237       Np
          Uranium  238.0289   U          Americium  243       Am
        Plutonium  244       Pu             Curium  247       Cm
        Berkelium  247       Bk        Californium  251       Cf
      Einsteinium  252       Es            Fermium  257       Fm
      Mendelevium  258       Md           Nobelium  259       No
    Rutherfordium  261       Rf         Lawrencium  262       Lr
          Dubnium  262       Db            Bohrium  264       Bh
       Seaborgium  266       Sg         Meitnerium  268       Mt
      Roentgenium  272       Rg            Hassium  277       Hs
     Darmstadtium  ???       Ds        Copernicium  ???       Cn
         Nihonium  ???       Nh          Flerovium  ???       Fl
        Moscovium  ???       Mc        Livermorium  ???       Lv
       Tennessine  ???       Ts          Oganesson  ???       Og

>.words.map: { (:name($^a), :weight($^b), :symbol($^c)).hash };

put 'Revision date: ',                                   %periodic<revision-date>;
put 'Last element by position (nominally by weight): ',  %periodic<table>.tail.<name>;
put 'Total number of elements: ',                        %periodic<table>.elems;
put 'Last element sorted by full name: ',                %periodic<table>.sort( *.<name> ).tail.<name>;
put 'Longest element name: ',                            %periodic<table>.sort( *.<name>.chars ).tail.<name>;
put 'Shortest element name: ',                           %periodic<table>.sort( -*.<name>.chars ).tail.<name>;
put 'Symbols for elements whose name starts with "P": ', %periodic<table>.grep( *.<name>.starts-with('P') )».<symbol>;
put "Elements with molecular weight between 20 & 40:\n ",%periodic<table>.grep( {+.<weight> ~~ Numeric and 20 < .<weight> < 40} )».<name>;
put "SCRN: ",                                            %periodic<table>[87,17,92]».<symbol>.join.tclc;

```

Output:

```
Revision date: 2020-03-23
Last element by position (nominally by weight): Oganesson
Total number of elements: 118
Last element sorted by full name: Zirconium
Longest element name: Rutherfordium
Shortest element name: Tin
Symbols for elements whose name starts with "P": P K Pd Pr Pm Pt Po Pa Pu
Elements with molecular weight between 20 & 40:
 Neon Sodium Magnesium Aluminum Silicon Phosphorus Sulfur Chlorine Potassium Argon
SCRN: Raku
```