libPasYAML

libPasYAML is object pascal wrapper around libyaml library. Library for parsing and emitting YAML.

Bindings

libpasyaml.pas file contains the libyaml translated headers to use this library is pascal programs. You can find C API documentation at yaml.org website.

Object wrapper

pasyaml.pas file contains the libyaml object wrapper.

Usage example

uses
  pasyaml;
  
const
  config : string = ''                                            +
    'person:'                                                     + sLineBreak +
    '  name: &val "mike"'                                         + sLineBreak +
    '  occupation: ''programmer'' '                               + sLineBreak +
    '  age: 23'                                                   + sLineBreak +
    '  gpa: 3.5'                                                  + sLineBreak +
    '  fav_num: 1e+10'                                            + sLineBreak +
    '  male: true'                                                + sLineBreak +
    '  birthday: 1994-02-06 14:33:22'                             + sLineBreak +
    '  flaws: null'                                               + sLineBreak +
    '  hobbies:'                                                  + sLineBreak +
    '    - hiking'                                                + sLineBreak +
    '    - movies'                                                + sLineBreak +
    '    - riding bike'                                           + sLineBreak +
    '  movies: ["Dark Knight", "Good Will Hunting"]'              + sLineBreak +
    '  friends:'                                                  + sLineBreak +
    '    - name: "Steph"'                                         + sLineBreak +
    '      age: 22'                                               + sLineBreak +
    '    - {name: "Adam", age: 22}'                               + sLineBreak +
    '    - '                                                      + sLineBreak +
    '      name: "Joe"'                                           + sLineBreak +
    '      age: 23'                                               + sLineBreak +
    '  description: >'                                            + sLineBreak +
    '    Nulla consequat massa quis enim.'                        + sLineBreak +
    '    Donec pede justo, fringilla vel,'                        + sLineBreak +
    '    aliquet nec, vulputate eget, arcu.'                      + sLineBreak +
    '    In enim justo, rhoncus ut, imperdiet'                    + sLineBreak +
    '    a, venenatis vitae, justo'                               + sLineBreak +
    '  signature: |'                                              + sLineBreak +
    '    Mike'                                                    + sLineBreak +
    '    Girafee Academy'                                         + sLineBreak +
    '    email - [email protected]'                                  + sLineBreak +
    '  id: *val';
var
  YamlFile : TYamlFile;
  Seq : TYamlFile.TOptionReader;

begin
  YamlFile := TYamlFile.Create;
  YamlFile.Parse(config);
  
  { Can use key path }
  Writeln(YamlFile.Value['person.name'].AsString);
  Writeln(YamlFile.Value['person.occupation'].AsString);
  Writeln(YamlFile.Value['person.age'].AsString);

  { Or single key }
  with YamlFile.Value['person'] do
  begin
    Writeln(Value['name'].AsString);
    Writeln(Value['occupation'].AsString);
    Writeln(Value['age'].AsInteger);
    Writeln(Value['gpa'].AsFloat);
    Writeln(Value['birthday'].AsDateTime);
    
    for Seq in Value['hobbies'].AsSequence do
    begin
      Writeln(Seq.AsString);
    end;
    
    Writeln(Value['id'].AsString);
  end;