Non univocal formatting for certain lines

[LoZack19]

This line:

G = 1.4e9 / (s ^ 2 * (s+4.4e4));

Formats into this line:

G = 1.4e9 / (s ^ 2 * (s + 4.4e4));

Which formats in this line:

G = 1.4e9 / (s ^ 2 * (s +4.4e4));

Observe the spacing in the last parenthesis. I think that this behavior is unintended.

[LoZack19]

It looks like a bug in the extract() function, probably in the way order it processes stuff. If it matches numbers before sums, it will consider the + sign as a part of the number instead of a part of the sum. In fact, logically the sum is evaluated before its components.

[LoZack19]

Btw, main() would really benefit from using argparse.

def main():
    parser = argparse.ArgumentParser(
        prog="matlab_parser",
        description="Parser of matlab code",
    )

    parser.add_argument("--startLine", type=int, default=1)
    parser.add_argument("--endLine", type=int, default=None)
    parser.add_argument("--indentWidth", type=int, default=4)
    parser.add_argument("--separateBlocks", type=bool, default=True)
    parser.add_argument("--indentMode", type=str, default="all_functions")
    parser.add_argument("--addSpaces", type=str, default="exclude_pow")
    parser.add_argument("--matrixIndent", type=str, default="aligned")
    parser.add_argument("filename", type=str)
    args = parser.parse_args()

    indentModes = dict(all_functions=1, only_nested_functions=-1, classic=0)
    operatorSpaces = dict(all_operators=1, exclude_pow=0.5, no_spaces=0)
    matrixIndentation = dict(aligned=1, simple=0)

    indent: int = args.indentWidth
    start: int = args.startLine
    end: int = args.endLine
    sep: bool = args.separateBlocks
    mode: int = indentModes.get(args.indentMode)
    opSp: float = operatorSpaces.get(args.addSpaces)
    matInd: int = matrixIndentation.get(args.matrixIndent)

    formatter = Formatter(indent, sep, mode, opSp, matInd)
    formatter.formatFile(args.filename, start, end)