Method code for $compiler._check_glue()

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arg tokens, i;
var j, bracket;

// WARNING: This method can throw (it should be called with (| |)'s)
while (tokens[i] == " ")
    i++;
if ((bracket = tokens[i++]) in ["{", "["]) {
    while (tokens[i] == " ")
        i++;
    j = i;
    if (tokens[i] in glue_table)
        return [j, bracket == "{" ? 'fmtname : 'genname];
}
return 0;

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// Created 17-Jul-1996 as a part of ColdCore, see: @help Credit