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GNU Go Documentation

7.1.4 High level functions

• SGFNode *sgfCreateHeaderNode(int boardsize, float komi)

  Create a new SGF node with the two properties SZ (size) and KM (komi). More properties, like HA (handicap), can later be added to it.

  The idea with this node is to store the game info and to use as a root node for the game.

• SGFNode *readsgffile(const char *filename)

  Read an SGF file and return the resulting tree.

• void sgf_write_header(SGFNode *root, int overwrite, int seed, float komi)

  Write random seed, date, ruleset, komi and SGF file version to the header node root. If overwrite is non-zero, it overwrites the values in the node, otherwise it just writes those that are missing.

  Ruleset is always set to "Japanese", date is set to the current date.

• int writesgf(SGFNode *root, const char *filename)

  Write the tree starting in root to the file filename. If filename is -, the tree is written to stdout. Returns 1 if successful, otherwise returns 0.