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make command-line arguments more flexible - chess-puzzles - chess puzzle book g… |
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git clone git://git.codemadness.org/chess-puzzles |
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--- |
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commit 0bf730b426ada19f487f1791faf13269989abc04 |
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parent 132c4a50aae9c410bf3b505f4c61b322c388cf83 |
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Author: Hiltjo Posthuma <[email protected]> |
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Date: Wed, 20 Dec 2023 18:50:17 +0100 |
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make command-line arguments more flexible |
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Diffstat: |
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M fen_to_svg.c | 18 +++++++++++++----- |
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1 file changed, 13 insertions(+), 5 deletions(-) |
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--- |
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diff --git a/fen_to_svg.c b/fen_to_svg.c |
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@@ -391,17 +391,25 @@ main(int argc, char *argv[]) |
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char square[3]; |
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long l; |
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- if (argc != 3) { |
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- fprintf(stderr, "usage: %s <FEN> <moves>\n", argv[0]); |
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+ if (argc > 3) { |
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+ fprintf(stderr, "usage: %s <FEN> [moves] or\n", argv[0]); |
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+ fprintf(stderr, " %s <FEN> or\n", argv[0]); |
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+ fprintf(stderr, " %s\n", argv[0]); |
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return 1; |
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} |
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+ if (argc > 1) |
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+ fen = argv[1]; |
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+ else |
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+ fen = "startpos"; |
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+ |
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+ if (argc > 2) |
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+ moves = argv[2]; |
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+ else |
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+ moves = ""; |
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- fen = argv[1]; |
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if (!strcmp(fen, "startpos")) |
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fen = "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 … |
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- moves = argv[2]; |
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- |
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/* initial board state, FEN format */ |
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x = y = field = 0; |
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for (s = fen; *s; s++) { |
