Yaml-CPP -- getting started with C ++ project configuration tool

Reference

Http://code.google.com/p/yaml-cpp/

What is yaml?

Yaml ain't markup language, yaml is not a markup language. Yaml naming is recursive, similar to GNU's not UNIX.

YAML is a human friendly data serialization  standard for all programming languages.

Yaml is used to compile the project configuration file. Its advantages are as follows:

http://zh-cn.w3support.net/index.php?db=so&id=1308536

http://www.ibm.com/developerworks/cn/xml/x-matters/part23/

A complete example

Understand this complete demo, yaml is getting started...

Here's a complete example of how to parse a complex yaml file:

Monsters. yaml // This is the yaml file, and the suffix must be yaml

- name: Ogre  position: [0, 5, 0]  powers:    - name: Club      damage: 10    - name: Fist      damage: 8- name: Dragon  position: [1, 0, 10]  powers:    - name: Fire Breath      damage: 25    - name: Claws      damage: 15- name: Wizard  position: [5, -3, 0]  powers:    - name: Acid Rain      damage: 50    - name: Staff      damage: 3

About the configuration file
1. Similar to Python, blank indentation indicates a structure. Note that it is not tab indent.
2. Start with-. Each row in the next row is a member of this structure. You can also write multiple members in the same row and mark them.
Main. cpp

# Include "yaml-CPP/yaml. H "// install yaml-CPP refer to the Google Code homepage # include <iostream> # include <fstream> # include <string> # include <vector> // Our data types // the example is taken from the open-source game engine ogre, struct vec3 {// float x, y, z ;}; struct power {// trick, magic STD: string name; // trick name, for example, sunflower collection int damage; // Damage Value}; struct monster {// monster STD: string name; vec3 position; STD: vector <power> powers ;}; // now the extraction operators These types // overload> budget operator .... Void operator> (const yaml: node & node, vec3 & V) {node [0]> v. x; node [1]> v. y; node [2]> v. z;} void operator >>( const yaml: node & node, Power & Power) {node ["name"]> power. name; node ["damage"]> power. damage;} void operator> (const yaml: node & node, monster & monster) {node ["name"]> monster. name; node ["position"]> monster. position; const yaml: node & powers = node ["Powers"]; for (unsig Ned I = 0; I <powers. size (); I ++) {power; powers [I]> power; monster. powers. push_back (Power) ;}} int main () // test program {STD: ifstream fin ("monsters. yaml "); // read the yaml configuration file. Yaml: parser Parser (FIN); // configuration file of the yaml analysis input. Error throw yaml: parserexception yaml: node Doc; parser. getnextdocument (DOC); // Doc is our yaml configuration file for (unsigned I = 0; I <Doc. size (); I ++) {// the actual value of I is 0, 1, 2; three big struct values associated with yaml: ogre, dragon, and Wizard monster; doc [I]> monster; STD: cout <monster. name <"\ n";} return 0 ;}