[igraph] PATCH foreign-dl-parser.y: allow linebreak after 'data:' token

[Jannick]

Hi,

 

here a tiny patch for your consideration to have iGraph read in edge lists using the function ‘igraph_read_graph_dl’ where nodes are given by integers like

 

DL n=4

format = edgelist1

data:

1 2

2 3

2 4

 

The current version of the grammar (foreign-dl-parser.y) complains about a line break after ‘data:’ which the tiny patch below amends.

 

Cheers,

J.

 

PATCH:

--- "a/foreign-dl-parser.y"

+++ "b/foreign-dl-parser.y"

@@ -181,7 +181,7 @@ labeledmatrixline: LABEL zerooneseq NEWLINE { } ;

 edgelist1: FORMATEDGELIST1 newline edgelist1rest {} ;

-edgelist1rest:   DATA edgelist1data {}

+edgelist1rest:   DATA newline edgelist1data {}

              | LABELS newline labels newline DATA newline edgelist1data {}