templater: tokenize decimal integer literal (issue4638) (BC) Before this patch, we had to quote integer literals to pass to template functions. It was error-prone, so we should allow "word(0, x)" syntax. Currently only decimal integers are allowed. It's easy to support 0x, 0b and 0 prefixes, but I don't think they are useful. This patch assumes that template keywords and names defined in map files do not start with digits, except for positional variables seen in the schemes extension.

templater: switch methods table on compileexp() of func args and inner expr The next patch will introduce integer literals, but the schemes extension expects that '{1}', '{2}', ... are interpreted as keywords. This patch allows us to process '{foo(1)}' as 'func(integer)', whereas '{1}' as 'symbol'.